/* MicroGrind design system — "electric notebook".
 * Graph paper, highlighter yellow and electric blue on deep ink.
 * Loaded on every page, after any older page stylesheet. */

@font-face { font-family: 'Bricolage Grotesque'; src: url('/fonts/bricolage.woff2') format('woff2'); font-weight: 200 800; font-display: swap; unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Geist'; src: url('/fonts/geist.woff2') format('woff2'); font-weight: 100 900; font-display: swap; unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Geist Mono'; src: url('/fonts/geist-mono.woff2') format('woff2'); font-weight: 100 900; font-display: swap; }

:root {
  --bg: #07090d;
  --bg-1: #0b0e14;
  --bg-2: #10141c;
  --bg-3: #161b26;
  --ink: #f4f6fb;
  --ink-2: #aab3c5;
  --ink-3: #6f7a8e;
  --line: rgba(148, 163, 184, 0.13);
  --line-2: rgba(148, 163, 184, 0.24);
  --blue: #3b82f6;
  --blue-2: #5b9bff;
  --indigo: #6d6bff;
  --cyan: #22d3ee;
  --marker: #f3d25a;
  --warm: #fb923c;
  --good: #34d399;
  --bad: #fb7185;
  --display: 'Bricolage Grotesque', 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --sans: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --mono: 'Geist Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease: cubic-bezier(0.22, 0.75, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.4, 0.5, 1);
  --radius: 18px;
  --radius-lg: 28px;
  --max: 1200px;
  --header: 72px;
  --paper: var(--bg);
  --muted: var(--ink-3);
  --ink-soft: var(--ink-2);
  --sheet: var(--bg-2);
  --surface-light: var(--bg-3);
  --line-strong: var(--line-2);
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .55 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  color-scheme: dark;
}

/* ---------- Base ---------- */

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; -webkit-text-size-adjust: 100%; background: var(--bg); }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  background-image: var(--grain);
  background-size: 160px;
  opacity: 0.06;
}
::selection { background: rgba(243, 210, 90, 0.85); color: #111; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-family: var(--display); letter-spacing: -0.035em; font-weight: 700; text-wrap: balance; }
:focus-visible { outline: 2px solid var(--marker); outline-offset: 3px; border-radius: 8px; }
main:focus { outline: none; }
.wrap { width: min(var(--max), calc(100% - 48px)); margin-inline: auto; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 200; padding: 10px 16px; border-radius: 12px; background: var(--marker); color: #111; font-weight: 700; text-decoration: none; transition: top 0.2s; }
.skip:focus { top: 12px; }
.mg-kicker, .kicker {
  display: inline-flex; align-items: center; gap: 10px;
  margin: 0 0 18px; font-family: var(--mono); font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2);
}
.mg-kicker-n { display: inline-grid; place-items: center; min-width: 30px; height: 22px; padding: 0 6px; border: 1px solid var(--line-2); border-radius: 6px; color: var(--marker); background: rgba(243, 210, 90, 0.06); letter-spacing: 0.05em; }
.mg-kicker.is-center { justify-content: center; width: 100%; }
.mg-h2 { font-size: clamp(2.1rem, 4.4vw, 3.6rem); line-height: 1.02; }
.mg-lede { color: var(--ink-2); font-size: 1.08rem; line-height: 1.6; max-width: 36em; }

/* ---------- Buttons ---------- */

.btn {
  position: relative; isolation: isolate; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 22px; border: 0; border-radius: 999px;
  font: inherit; font-size: 0.97rem; font-weight: 620; letter-spacing: -0.01em; text-decoration: none; white-space: nowrap;
  color: #fff; cursor: pointer;
  background: linear-gradient(180deg, #5b9bff 0%, #3b82f6 55%, #2f6fe0 100%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.35) inset, 0 -1px 0 rgba(0, 0, 0, 0.25) inset, 0 10px 30px -10px rgba(59, 130, 246, 0.8);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.25s, color 0.2s, border-color 0.2s;
  transform: translate3d(var(--mx-off, 0), var(--my-off, 0), 0);
}
.btn svg { width: 18px; height: 18px; flex: none; transition: transform 0.35s var(--ease); }
.btn:hover { color: #fff; box-shadow: 0 1px 0 rgba(255, 255, 255, 0.4) inset, 0 -1px 0 rgba(0, 0, 0, 0.25) inset, 0 16px 40px -12px rgba(59, 130, 246, 0.95); }
.btn:hover svg { transform: translateX(3px); }
.btn:active { transform: translate3d(var(--mx-off, 0), var(--my-off, 0), 0) scale(0.97); }
.btn-sm { min-height: 40px; padding: 0 16px; font-size: 0.88rem; }
.btn-lg { min-height: 56px; padding: 0 28px; font-size: 1.02rem; }
.btn-ghost {
  color: var(--ink); background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 0 0 1px var(--line-2) inset;
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.btn-ghost:hover { color: var(--ink); background: rgba(255, 255, 255, 0.08); box-shadow: 0 0 0 1px rgba(148, 163, 184, 0.4) inset; }
.btn-ghost:hover svg { transform: translateY(2px); }
.btn-warm { background: linear-gradient(180deg, #fdba74, #fb923c 60%, #f97316); color: #1c0d02; box-shadow: 0 1px 0 rgba(255,255,255,.45) inset, 0 10px 30px -12px rgba(251, 146, 60, 0.9); }
.btn-warm:hover { color: #1c0d02; box-shadow: 0 1px 0 rgba(255,255,255,.45) inset, 0 16px 36px -12px rgba(251, 146, 60, 1); }
.btn[disabled] { opacity: 0.6; cursor: default; }
.btn-shine::after {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.35) 48%, transparent 66%);
  transform: translateX(-120%);
  animation: mg-shine 4.8s var(--ease) 1.6s infinite;
}
@keyframes mg-shine { 0%, 60% { transform: translateX(-120%); } 85%, 100% { transform: translateX(120%); } }

/* ---------- Header ---------- */

.mg-progress { position: fixed; inset: 0 0 auto; height: 2px; z-index: 120; pointer-events: none; }
.mg-progress span { display: block; height: 100%; transform-origin: 0 50%; transform: scaleX(var(--sp, 0)); background: linear-gradient(90deg, var(--blue), var(--cyan), var(--marker)); }
.site-header.mg-header {
  position: sticky; top: 0; z-index: 100;
  padding: 12px 0; border: 0; background: transparent;
  -webkit-backdrop-filter: none; backdrop-filter: none;
}
.mg-header-inner {
  display: flex; align-items: center; gap: 16px;
  width: min(var(--max), calc(100% - 32px)); min-height: 56px; margin-inline: auto;
  padding: 6px 8px 6px 14px; border-radius: 999px;
  border: 1px solid transparent;
  transition: background 0.45s var(--ease), border-color 0.45s var(--ease), box-shadow 0.45s var(--ease), width 0.6s var(--ease);
}
.mg-header.is-stuck .mg-header-inner {
  width: min(1080px, calc(100% - 24px));
  background: rgba(12, 15, 22, 0.72);
  border-color: var(--line);
  box-shadow: 0 20px 50px -24px rgba(0, 0, 0, 0.8), 0 1px 0 rgba(255, 255, 255, 0.05) inset;
  -webkit-backdrop-filter: blur(18px) saturate(1.4); backdrop-filter: blur(18px) saturate(1.4);
}
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-family: var(--display); font-weight: 700; font-size: 1.12rem; letter-spacing: -0.03em; }
.logo img { border-radius: 8px; }
.mg-nav { position: relative; display: flex; align-items: center; gap: 2px; margin-inline: auto; }
.mg-nav a { position: relative; z-index: 1; padding: 8px 14px; border-radius: 999px; color: var(--ink-2); font-size: 0.9rem; font-weight: 500; text-decoration: none; transition: color 0.2s; }
.mg-nav a:hover, .mg-nav a.is-active { color: var(--ink); }
.mg-nav a[aria-current='page'] { background: rgba(255, 255, 255, 0.07); box-shadow: 0 0 0 1px var(--line) inset; }
.mg-sheet nav a[aria-current='page'] { color: var(--marker); }
.mg-nav-pill { position: absolute; z-index: 0; top: 0; left: 0; height: 100%; width: var(--pw, 0); transform: translateX(var(--px, 0)); border-radius: 999px; background: rgba(255, 255, 255, 0.07); box-shadow: 0 0 0 1px var(--line) inset; opacity: var(--po, 0); transition: transform 0.45s var(--ease), width 0.45s var(--ease), opacity 0.3s; }
.mg-actions { display: flex; align-items: center; gap: 8px; }
.lang { display: inline-grid; place-items: center; min-width: 40px; height: 40px; padding: 0 10px; border-radius: 999px; color: var(--ink-2); font-family: var(--mono); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em; text-decoration: none; box-shadow: 0 0 0 1px var(--line) inset; transition: color 0.2s, background 0.2s; }
.lang:hover { color: var(--ink); background: rgba(255, 255, 255, 0.06); }
.mg-menu { display: none; width: 44px; height: 44px; place-items: center; border: 0; border-radius: 999px; background: rgba(255, 255, 255, 0.06); color: var(--ink); cursor: pointer; box-shadow: 0 0 0 1px var(--line) inset; }
.mg-menu svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; transition: transform 0.4s var(--ease); }
.mg-menu svg path { transition: transform 0.4s var(--ease); transform-origin: 12px 12px; }
.mg-menu[aria-expanded='true'] svg path:first-child { transform: translateY(4px) rotate(45deg); }
.mg-menu[aria-expanded='true'] svg path:last-child { transform: translateY(-4px) rotate(-45deg); }
.mg-sheet { width: min(var(--max), calc(100% - 24px)); margin: 8px auto 0; padding: 14px; border-radius: 24px; background: rgba(12, 15, 22, 0.94); border: 1px solid var(--line); box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.9); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); }
.mg-sheet:not([hidden]) { animation: mg-drop 0.45s var(--ease); }
.mg-sheet nav { display: grid; }
.mg-sheet nav a { padding: 14px 10px; border-bottom: 1px solid var(--line); color: var(--ink); font-family: var(--display); font-size: 1.35rem; font-weight: 600; letter-spacing: -0.02em; text-decoration: none; }
.mg-sheet-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
@keyframes mg-drop { from { opacity: 0; transform: translateY(-10px) scale(0.98); } }

/* ---------- Reveal language ---------- */

.js [data-reveal] { transition: opacity 0.9s var(--ease), transform 1s var(--ease), filter 0.9s var(--ease), clip-path 1.1s var(--ease); transition-delay: var(--d, 0ms); }
.js [data-reveal='rise']:not(.is-in) { opacity: 0; transform: translateY(26px); filter: blur(6px); }
.js [data-reveal='scale']:not(.is-in) { opacity: 0; transform: translateY(40px) scale(0.96); }
.js [data-reveal='line'] { display: block; }
.js [data-reveal='line']:not(.is-in) { opacity: 0; transform: translateY(0.45em); clip-path: inset(0 0 100% 0); }
.js [data-reveal='line'].is-in { clip-path: inset(-0.2em -0.2em -0.3em -0.2em); }
.js [data-reveal='wipe']:not(.is-in) { opacity: 0.08; clip-path: inset(-10% 100% -10% 0); transform: translateX(-8px); }
.js [data-reveal='wipe'].is-in { clip-path: inset(-10% -2% -10% 0); }
.js [data-reveal='device']:not(.is-in) { opacity: 0; transform: perspective(1200px) rotateX(16deg) translateY(70px) scale(0.92); }
.js [data-reveal='device'] { transition-duration: 1.4s; }

/* ---------- Glass + spotlight ---------- */

.mg-glass {
  position: relative; isolation: isolate;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(600px circle at var(--mx, 50%) var(--my, -20%), rgba(91, 155, 255, 0.1), transparent 45%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset, 0 40px 80px -40px rgba(0, 0, 0, 0.8);
}
.mg-glass::before {
  content: ''; position: absolute; inset: -1px; z-index: -1; border-radius: inherit; padding: 1px; pointer-events: none;
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, -20%), rgba(147, 187, 255, 0.55), transparent 50%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: var(--glow, 0); transition: opacity 0.4s;
}
.mg-glass:hover { --glow: 1; }
.mg-demo-tag { display: inline-flex; align-items: center; gap: 7px; padding: 4px 10px; border-radius: 999px; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); background: rgba(255, 255, 255, 0.04); box-shadow: 0 0 0 1px var(--line) inset; white-space: nowrap; }
.mg-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--marker); box-shadow: 0 0 10px var(--marker); }

/* ---------- Sections ---------- */

.mg-section { position: relative; padding: clamp(88px, 12vw, 160px) 0; }
.mg-split-head { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 28px 64px; align-items: end; margin-bottom: clamp(36px, 5vw, 64px); }
.mg-center-head { text-align: center; max-width: 860px; margin: 0 auto clamp(40px, 5vw, 64px); }
.mg-center-head .mg-kicker { justify-content: center; }
.mg-center-head .mg-lede { margin: 22px auto 0; }

/* ---------- Hero ---------- */

.mg-hero { position: relative; isolation: isolate; margin-top: calc(var(--header) * -1 - 12px); padding: calc(var(--header) + 72px) 0 72px; min-height: min(100svh, 980px); display: flex; align-items: center; overflow: clip; }
.mg-hero-bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.mg-aurora { position: absolute; border-radius: 50%; filter: blur(70px); opacity: 0.9; will-change: transform; transform: translate3d(calc(var(--hx, 0) * var(--depth, 0) * 40px), calc(var(--hy, 0) * var(--depth, 0) * 40px + var(--scroll-y, 0px) * var(--depth, 0)), 0); }
.mg-aurora-a { --depth: -0.4; width: 60vw; height: 60vw; max-width: 820px; max-height: 820px; right: -12vw; top: -18vw; background: radial-gradient(closest-side, rgba(59, 130, 246, 0.55), rgba(109, 107, 255, 0.18) 55%, transparent); animation: mg-breathe 14s ease-in-out infinite alternate; }
.mg-aurora-b { --depth: -0.25; width: 46vw; height: 46vw; max-width: 640px; max-height: 640px; left: -14vw; bottom: -20vw; background: radial-gradient(closest-side, rgba(34, 211, 238, 0.28), transparent 70%); animation: mg-breathe 18s ease-in-out -6s infinite alternate; }
.mg-aurora-c { --depth: -0.15; width: 24vw; height: 24vw; max-width: 340px; max-height: 340px; right: 34%; bottom: 6%; background: radial-gradient(closest-side, rgba(243, 210, 90, 0.2), transparent 70%); animation: mg-breathe 12s ease-in-out -3s infinite alternate; }
@keyframes mg-breathe { from { scale: 1; } to { scale: 1.18; } }
.mg-grid-paper {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(148, 163, 184, 0.09) 1px, transparent 1px), linear-gradient(90deg, rgba(148, 163, 184, 0.09) 1px, transparent 1px);
  background-size: 44px 44px;
  background-position: center top;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 55% 40%, #000 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 60% at 55% 40%, #000 20%, transparent 75%);
}
.mg-constellation { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.55; }
.mg-constellation path { fill: none; stroke: rgba(147, 187, 255, 0.35); stroke-width: 1; stroke-dasharray: 4 6; animation: mg-dash 30s linear infinite; }
.mg-constellation-dots circle { fill: var(--blue-2); filter: drop-shadow(0 0 6px var(--blue-2)); animation: mg-twinkle 4s ease-in-out infinite; }
.mg-constellation-dots circle:nth-child(3n) { animation-delay: -1.3s; fill: var(--marker); filter: drop-shadow(0 0 6px var(--marker)); }
.mg-constellation-dots circle:nth-child(3n + 1) { animation-delay: -2.6s; }
@keyframes mg-dash { to { stroke-dashoffset: -400; } }
@keyframes mg-twinkle { 50% { opacity: 0.25; } }
.mg-cursor-light { position: absolute; left: 0; top: 0; width: 520px; height: 520px; margin: -260px 0 0 -260px; border-radius: 50%; background: radial-gradient(closest-side, rgba(147, 187, 255, 0.13), transparent); transform: translate3d(var(--cx, -999px), var(--cy, -999px), 0); pointer-events: none; transition: opacity 0.4s; }
.mg-hero-grid { display: grid; grid-template-columns: 1.12fr 0.88fr; gap: 40px; align-items: center; }
.mg-pill { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 26px; padding: 7px 14px 7px 10px; border-radius: 999px; font-family: var(--mono); font-size: 0.78rem; font-weight: 500; letter-spacing: 0.04em; color: var(--ink); background: rgba(255, 255, 255, 0.05); box-shadow: 0 0 0 1px var(--line-2) inset; -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.mg-pulse { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--marker); }
.mg-pulse::after { content: ''; position: absolute; inset: -4px; border-radius: 50%; border: 1.5px solid var(--marker); animation: mg-ping 2.2s var(--ease) infinite; }
@keyframes mg-ping { from { opacity: 0.9; transform: scale(0.6); } to { opacity: 0; transform: scale(1.9); } }
.mg-h1 { font-size: clamp(2.6rem, 4.9vw, 4.6rem); line-height: 0.98; letter-spacing: -0.045em; font-weight: 700; }
.h1-brand { display: block; width: fit-content; margin-bottom: 18px; font-family: var(--mono); font-size: 0.8rem; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; color: var(--blue-2); }
.h1-a { display: block; }
.h1-b { display: block; padding-bottom: 0.08em; color: transparent; background: linear-gradient(100deg, #8fb8ff 0%, #5b9bff 30%, #22d3ee 55%, #f3d25a 85%, #8fb8ff 100%); background-size: 220% 100%; -webkit-background-clip: text; background-clip: text; animation: mg-flow 9s linear infinite; }
@keyframes mg-flow { to { background-position: -220% 0; } }
.mg-hero .lede { max-width: 34em; margin-top: 28px; color: var(--ink-2); font-size: 1.1rem; line-height: 1.62; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-actions.is-center { justify-content: center; }
.support { margin-top: 18px; color: var(--ink-3); font-size: 0.9rem; }
.mg-formats { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; padding: 0; list-style: none; }
.mg-formats li { padding: 5px 11px; border-radius: 8px; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.04em; color: var(--ink-2); background: rgba(255, 255, 255, 0.03); box-shadow: 0 0 0 1px var(--line) inset; }
.mg-hero-visual { position: relative; display: grid; justify-items: center; }
.mg-hero-demo { margin-top: 18px; }

/* Device */
.mg-device-wrap { position: relative; display: grid; justify-items: center; padding: 20px 40px 0; perspective: 1400px; }
.mg-device {
  position: relative; width: 300px; height: 612px; padding: 12px; border-radius: 52px;
  background: linear-gradient(145deg, #2a3242, #0f131b 40%, #1b2230 70%, #3a4458);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1) inset, 0 2px 1px rgba(255, 255, 255, 0.2) inset, 0 60px 120px -30px rgba(15, 50, 140, 0.75), 0 30px 60px -30px rgba(0, 0, 0, 0.9);
  transform: rotateX(var(--rx, 6deg)) rotateY(var(--ry, -12deg)) rotateZ(1deg);
  transform-style: preserve-3d;
  transition: transform 0.8s var(--ease);
}
.mg-device-glare { position: absolute; inset: 0; z-index: 3; border-radius: inherit; pointer-events: none; background: linear-gradient(115deg, transparent 38%, rgba(255, 255, 255, 0.09) 46%, transparent 56%); background-size: 250% 100%; background-position: var(--gx, 60%) 0; mix-blend-mode: screen; }
.mg-device-screen { position: relative; height: 100%; overflow: hidden; border-radius: 41px; background: radial-gradient(120% 60% at 50% 0%, #142245 0%, #0a0e16 55%); }
.dv-status { display: flex; justify-content: space-between; align-items: center; padding: 14px 22px 0; font-size: 0.72rem; font-weight: 600; }
.dv-island { width: 86px; height: 24px; border-radius: 99px; background: #000; }
.dv-signal { width: 30px; height: 10px; border-radius: 3px; background: linear-gradient(90deg, var(--ink) 60%, rgba(255,255,255,.3) 60%); }
.dv-screen { position: absolute; inset: 52px 0 0; padding: 18px 18px 22px; opacity: 0; transform: translateY(14px) scale(0.98); transition: opacity 0.6s var(--ease), transform 0.7s var(--ease); pointer-events: none; }
.dv-screen.is-on { opacity: 1; transform: none; }
.dv-title { margin-bottom: 18px; font-family: var(--display); font-size: 1.3rem; font-weight: 700; letter-spacing: -0.03em; }
.dv-drop { display: grid; gap: 14px; padding: 18px; border-radius: 22px; border: 1.5px dashed rgba(147, 187, 255, 0.4); background: rgba(59, 130, 246, 0.07); }
.dv-file { display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 14px; background: #f4f6fb; color: #0b0e14; box-shadow: 0 14px 30px -12px rgba(0, 0, 0, 0.6); }
.dv-file svg { width: 30px; height: 30px; flex: none; color: #e5484d; }
.dv-file b { display: block; font-size: 0.82rem; }
.dv-file small { color: #5b6475; font-size: 0.72rem; }
.dv-bar { height: 6px; border-radius: 9px; background: rgba(255, 255, 255, 0.1); overflow: hidden; }
.dv-bar span { display: block; height: 100%; width: 100%; transform-origin: 0 0; transform: scaleX(0); background: linear-gradient(90deg, var(--blue), var(--cyan)); border-radius: inherit; }
.dv-status-text { color: var(--ink-2); font-size: 0.74rem; font-family: var(--mono); }
.dv-ghosts { display: grid; gap: 10px; margin-top: 18px; }
.dv-ghosts span { height: 46px; border-radius: 14px; background: linear-gradient(90deg, rgba(255,255,255,.04), rgba(255,255,255,.08), rgba(255,255,255,.04)); background-size: 200% 100%; animation: mg-shimmer 1.6s linear infinite; }
.dv-ghosts span:nth-child(2) { width: 80%; }
.dv-ghosts span:nth-child(3) { width: 60%; }
@keyframes mg-shimmer { to { background-position: -200% 0; } }
.dv-screen.is-on .dv-file { animation: dv-drop 0.8s var(--ease-spring) both; }
.dv-screen.is-on .dv-bar span { animation: dv-fill 2.6s var(--ease) 0.5s forwards; }
@keyframes dv-drop { from { opacity: 0; transform: translateY(-40px) rotate(-6deg); } }
@keyframes dv-fill { to { transform: scaleX(1); } }
.dv-ring { position: relative; width: 170px; height: 170px; margin: 4px auto 22px; }
.dv-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.dv-ring circle { fill: none; stroke: rgba(255, 255, 255, 0.08); stroke-width: 9; }
.dv-ring .dv-ring-fill { stroke: url(#none); stroke: var(--blue-2); stroke-linecap: round; stroke-dasharray: 314.2; stroke-dashoffset: 314.2; filter: drop-shadow(0 0 8px rgba(91, 155, 255, 0.7)); }
.dv-screen.is-on .dv-ring-fill { animation: dv-ring 3.4s var(--ease) forwards; }
@keyframes dv-ring { to { stroke-dashoffset: 0; } }
.dv-ring-num { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.dv-ring-num b { font-family: var(--display); font-size: 2.2rem; letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.dv-ring-num small { color: var(--ink-2); font-size: 0.74rem; }
.dv-steps { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.dv-steps li { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 12px; background: rgba(255, 255, 255, 0.04); font-size: 0.82rem; color: var(--ink-2); }
.dv-check { display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; box-shadow: 0 0 0 1.5px var(--line-2) inset; }
.dv-check svg { width: 12px; height: 12px; opacity: 0; }
.dv-screen.is-on .dv-steps li { animation: dv-step 0.4s var(--ease) forwards; animation-delay: calc(0.9s + var(--i) * 0.8s); }
.dv-screen.is-on .dv-steps li .dv-check { animation: dv-checked 0.4s var(--ease) forwards; animation-delay: calc(0.9s + var(--i) * 0.8s); }
.dv-screen.is-on .dv-steps li .dv-check svg { animation: dv-show 0.3s forwards; animation-delay: calc(1s + var(--i) * 0.8s); }
@keyframes dv-step { to { color: var(--ink); background: rgba(59, 130, 246, 0.14); } }
@keyframes dv-checked { to { background: var(--good); box-shadow: none; color: #04261a; } }
@keyframes dv-show { to { opacity: 1; } }
.dv-done { display: flex; align-items: center; gap: 8px; justify-content: center; margin-top: 14px; color: var(--marker); font-size: 0.82rem; font-weight: 600; opacity: 0; }
.dv-done svg { width: 16px; height: 16px; }
.dv-screen.is-on .dv-done { animation: dv-show 0.5s forwards 3.4s; }

.mg-float {
  position: absolute; z-index: 4; display: flex; align-items: center; gap: 10px;
  padding: 10px 14px 10px 10px; border-radius: 18px;
  background: rgba(16, 20, 30, 0.72); border: 1px solid var(--line-2);
  box-shadow: 0 20px 40px -18px rgba(0, 0, 0, 0.8), 0 1px 0 rgba(255, 255, 255, 0.08) inset;
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  transform: translate3d(calc(var(--hx, 0) * var(--depth) * -36px), calc(var(--hy, 0) * var(--depth) * -36px), 0);
  transition: transform 0.6s var(--ease);
  animation: mg-bob 6s ease-in-out infinite;
}
.mg-float small { display: block; color: var(--ink-2); font-size: 0.68rem; font-family: var(--mono); letter-spacing: 0.06em; text-transform: uppercase; }
.mg-float b { font-family: var(--display); font-size: 1.15rem; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.mg-float-icon { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 12px; background: rgba(59, 130, 246, 0.2); color: var(--blue-2); }
.mg-float-icon.is-warm { background: rgba(251, 146, 60, 0.18); color: var(--warm); }
.mg-float-icon svg { width: 20px; height: 20px; }
.mg-float-score { --depth: 0.6; left: -14px; top: 50%; }
.mg-float-streak { --depth: 1; right: -8px; top: 6%; animation-delay: -2s; }
.mg-float-streak b { display: inline; margin-right: 6px; }
.mg-float-streak small { display: inline; }
.mg-float-card { --depth: 0.35; right: 0; bottom: 9%; display: block; max-width: 180px; padding: 12px 14px; background: rgba(244, 246, 251, 0.95); color: #0b0e14; animation-delay: -4s; }
.mg-float-card small { color: #5b6475; }
.mg-float-card b { display: block; font-size: 0.98rem; margin-top: 2px; }
@keyframes mg-bob { 50% { translate: 0 -10px; } }
.mg-stage-tabs { display: flex; gap: 6px; margin-top: 26px; padding: 5px; border-radius: 999px; background: rgba(255, 255, 255, 0.04); box-shadow: 0 0 0 1px var(--line) inset; }
.mg-stage-tab { position: relative; display: grid; gap: 6px; min-width: 92px; padding: 8px 14px 10px; border: 0; border-radius: 999px; background: transparent; color: var(--ink-3); font: inherit; font-size: 0.8rem; font-weight: 600; cursor: pointer; transition: color 0.3s, background 0.3s; }
.mg-stage-tab.is-on { color: var(--ink); background: rgba(255, 255, 255, 0.06); }
.mg-stage-bar { height: 2px; border-radius: 2px; background: rgba(255, 255, 255, 0.1); overflow: hidden; }
.mg-stage-bar span { display: block; height: 100%; transform-origin: 0 0; transform: scaleX(0); background: var(--marker); }
.mg-stage-tab.is-on .mg-stage-bar span { animation: mg-stage-run var(--stage-ms, 4600ms) linear forwards; }
.mg-stage-tab.is-held .mg-stage-bar span { animation: none; transform: scaleX(1); }
@keyframes mg-stage-run { to { transform: scaleX(1); } }

/* ---------- Marquee ---------- */

.mg-marquee { position: relative; padding: 26px 0; border-block: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,.02), transparent); overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.mg-marquee-row { display: flex; overflow: hidden; }
.mg-marquee-row + .mg-marquee-row { margin-top: 12px; }
.mg-marquee-track { display: flex; flex: none; align-items: center; gap: 28px; padding-right: 28px; animation: mg-marquee 60s linear infinite; }
.mg-marquee-row.is-reverse .mg-marquee-track { animation-direction: reverse; animation-duration: 70s; }
.mg-marquee-track span { font-family: var(--display); font-size: clamp(1.4rem, 2.6vw, 2.1rem); font-weight: 600; letter-spacing: -0.03em; color: var(--ink-2); white-space: nowrap; }
.mg-marquee-row.is-reverse .mg-marquee-track span { font-family: var(--mono); font-size: 0.9rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }
.mg-marquee-track i { font-style: normal; color: var(--marker); font-size: 0.8rem; }
.mg-marquee:hover .mg-marquee-track, .mg-marquee.is-paused .mg-marquee-track { animation-play-state: paused; }
@keyframes mg-marquee { to { transform: translateX(-50%); } }

/* ---------- Problem scene ---------- */

.mg-problem { position: relative; height: 250vh; background: linear-gradient(180deg, transparent, rgba(16, 20, 28, 0.7) 20%, rgba(16, 20, 28, 0.7) 80%, transparent); }
.mg-scene-sticky { position: sticky; top: 0; height: 100vh; height: 100svh; display: flex; align-items: center; overflow: hidden; }
.mg-problem-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 56px; align-items: center; }
.mg-ba { position: relative; display: grid; margin-top: 30px; }
.mg-ba p { grid-area: 1 / 1; max-width: 26em; color: var(--ink-2); font-size: 1.08rem; transition: opacity 0.3s; }
.mg-ba b { display: block; margin-bottom: 6px; font-family: var(--mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; }
.mg-ba-before { opacity: clamp(0, calc(1 - var(--p, 0) * 2.4), 1); }
.mg-ba-before b { color: var(--bad); }
.mg-ba-after { opacity: clamp(0, calc(var(--p, 0) * 2.4 - 1.2), 1); }
.mg-ba-after b { color: var(--good); }
.mg-scroll-hint { display: inline-flex; align-items: center; gap: 8px; margin-top: 34px; color: var(--ink-3); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; opacity: clamp(0, calc(1 - var(--p, 0) * 3), 1); }
.mg-scroll-hint svg { width: 16px; height: 16px; animation: mg-nudge 1.6s ease-in-out infinite; }
@keyframes mg-nudge { 50% { transform: translateY(4px); } }
.mg-problem-stage { position: relative; height: min(68vh, 560px); container-type: size; border-radius: var(--radius-lg); }
.mg-stage-grid { position: absolute; inset: 0; border-radius: inherit; background-image: linear-gradient(rgba(148, 163, 184, 0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(148, 163, 184, 0.08) 1px, transparent 1px); background-size: 28px 28px; -webkit-mask-image: radial-gradient(closest-side, #000, transparent); mask-image: radial-gradient(closest-side, #000, transparent); opacity: calc(0.4 + var(--p, 0) * 0.6); }
.mg-stage-root { position: absolute; left: 50%; top: 4cqh; translate: -50% 0; padding: 7px 14px; border-radius: 10px; background: var(--marker); color: #1a1405; font-family: var(--display); font-weight: 700; font-size: clamp(0.8rem, 2.4cqw, 1rem); opacity: clamp(0, calc(var(--p, 0) * 2.5 - 1.2), 1); scale: clamp(0.7, calc(0.7 + var(--p, 0) * 0.3), 1); box-shadow: 0 0 40px rgba(243, 210, 90, 0.4); }
.mg-col-head { position: absolute; left: 0; top: 0; width: 22cqw; padding: 6px 0; text-align: center; font-family: var(--mono); font-size: clamp(0.6rem, 1.8cqw, 0.78rem); letter-spacing: 0.08em; text-transform: uppercase; color: var(--blue-2); border-top: 2px solid var(--blue); transform: translate3d(calc(var(--x1) * 1cqw), 18cqh, 0); opacity: clamp(0, calc(var(--p, 0) * 3 - 1.6 - var(--k) * 0.1), 1); }
.mg-piece {
  --e: clamp(0, calc(var(--p, 0) * 1.6 - var(--k) * 0.05), 1);
  position: absolute; left: 0; top: 0; width: 22cqw; height: 16cqh;
  display: grid; align-content: end; padding: 8px 10px; border-radius: 12px;
  font-size: clamp(0.62rem, 2cqw, 0.86rem); font-weight: 600; line-height: 1.2; color: #0b0e14;
  background: #f4f6fb;
  box-shadow: 0 calc((1 - var(--e)) * 22px + 4px) calc((1 - var(--e)) * 30px + 10px) -8px rgba(0, 0, 0, 0.7);
  transform: translate3d(calc((var(--x0) + (var(--x1) - var(--x0)) * var(--e)) * 1cqw), calc((var(--y0) + (var(--y1) - var(--y0)) * var(--e)) * 1cqh), 0) rotate(calc(var(--r0) * (1 - var(--e)) * 1deg));
  will-change: transform;
}
.mg-piece::after { content: ''; position: absolute; inset: 0; border-radius: inherit; box-shadow: 0 0 0 2px var(--blue) inset; opacity: var(--e); }
.mg-piece-lines { position: absolute; inset: 10px 10px auto; height: 40%; background: repeating-linear-gradient(180deg, rgba(11, 14, 20, 0.14) 0 2px, transparent 2px 7px); border-radius: 2px; }
.mg-stage-meter { position: absolute; left: 10%; right: 10%; bottom: 0; height: 3px; border-radius: 3px; background: rgba(255, 255, 255, 0.08); overflow: hidden; }
.mg-stage-meter span { display: block; height: 100%; transform-origin: 0 0; transform: scaleX(var(--p, 0)); background: linear-gradient(90deg, var(--bad), var(--marker), var(--good)); }

/* ---------- Subject Map explorer ---------- */

.mg-map-copy p { color: var(--ink-2); font-size: 1.05rem; }
.ink-mark { color: var(--ink); background: linear-gradient(transparent 58%, rgba(243, 210, 90, 0.42) 58%, rgba(243, 210, 90, 0.42) 92%, transparent 92%); background-size: 0% 100%; background-repeat: no-repeat; transition: background-size 1.2s var(--ease) 0.5s; padding: 0 2px; font-weight: 650; }
.is-in .ink-mark, html:not(.js) .ink-mark { background-size: 100% 100%; }
.mg-order-note { display: flex; gap: 10px; align-items: flex-start; margin-top: 16px; color: var(--ink) !important; font-weight: 550; }
.mg-order-note svg { width: 20px; height: 20px; flex: none; margin-top: 3px; color: var(--marker); }
.mg-mapx { padding: 14px; }
.mg-mapx-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 4px 4px 14px; }
.mg-chip-tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.mg-chip-tab { padding: 9px 16px; border: 0; border-radius: 999px; background: rgba(255, 255, 255, 0.04); color: var(--ink-2); font: inherit; font-size: 0.88rem; font-weight: 600; cursor: pointer; box-shadow: 0 0 0 1px var(--line) inset; transition: all 0.3s var(--ease); }
.mg-chip-tab:hover { color: var(--ink); }
.mg-chip-tab[aria-selected='true'] { background: var(--ink); color: #0b0e14; box-shadow: 0 8px 24px -10px rgba(255, 255, 255, 0.5); }
@keyframes mg-in { from { opacity: 0; transform: translateY(10px) scale(0.99); } }
.mx-hint { margin: 12px 4px 2px; color: var(--ink-3); font-size: 0.82rem; font-family: var(--mono); }
.mg-quote { max-width: 30em; margin: clamp(48px, 7vw, 88px) auto 0; text-align: center; font-family: var(--display); font-size: clamp(1.5rem, 2.8vw, 2.3rem); font-weight: 600; line-height: 1.2; letter-spacing: -0.03em; color: var(--ink); }

/* ---------- How it works ---------- */

.mg-how { background: linear-gradient(180deg, transparent, rgba(59, 130, 246, 0.05) 30%, transparent); }
.mg-how-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 64px; align-items: start; }
.mg-how-side { position: sticky; top: 120px; }
.mg-rail { position: relative; display: grid; gap: 4px; margin: 40px 0 0; padding: 0 0 0 26px; list-style: none; }
.mg-rail::before, .mg-rail-fill { content: ''; position: absolute; left: 7px; top: 12px; bottom: 12px; width: 2px; border-radius: 2px; background: var(--line-2); }
.mg-rail-fill { background: linear-gradient(var(--blue), var(--marker)); transform-origin: 0 0; transform: scaleY(var(--rail, 0)); transition: transform 0.4s var(--ease); }
.mg-rail li { position: relative; display: flex; gap: 14px; align-items: baseline; padding: 10px 0; color: var(--ink-3); font-weight: 600; transition: color 0.3s; }
.mg-rail li span { font-family: var(--mono); font-size: 0.78rem; }
.mg-rail li::before { content: ''; position: absolute; left: -24px; top: 17px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); box-shadow: 0 0 0 2px var(--line-2) inset; transition: all 0.3s; }
.mg-rail li.is-on { color: var(--ink); }
.mg-rail li.is-on::before { background: var(--marker); box-shadow: 0 0 0 4px rgba(243, 210, 90, 0.2), 0 0 16px var(--marker); }
.mg-steps { display: grid; gap: 22px; }
.mg-step { padding: clamp(22px, 3vw, 34px); }
.mg-step-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.mg-step .icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px; color: var(--blue-2); background: rgba(59, 130, 246, 0.12); box-shadow: 0 0 0 1px rgba(91, 155, 255, 0.25) inset; }
.mg-step .icon svg { width: 24px; height: 24px; }
.step-no { font-family: var(--display); font-size: 3.4rem; font-weight: 800; line-height: 1; letter-spacing: -0.05em; color: transparent; -webkit-text-stroke: 1px rgba(148, 163, 184, 0.35); }
.mg-step.is-active .step-no { -webkit-text-stroke-color: var(--marker); }
.mg-step h3 { font-size: clamp(1.5rem, 2.4vw, 1.9rem); margin-bottom: 10px; }
.mg-step > p { color: var(--ink-2); max-width: 34em; }
.step-demo, .session { margin-top: 26px; padding: 18px; border-radius: 20px; background: rgba(7, 9, 13, 0.55); box-shadow: 0 0 0 1px var(--line) inset; }
.session-caption { margin-bottom: 14px; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.sd-drop { display: flex; align-items: center; gap: 12px; padding: 14px; border-radius: 14px; border: 1.5px dashed rgba(147, 187, 255, 0.35); color: var(--ink-2); font-size: 0.9rem; }
.sd-drop-icon svg { width: 22px; height: 22px; color: var(--blue-2); }
.step-demo.is-in .sd-drop-icon { animation: mg-nudge 1.4s ease-in-out infinite; }
.sd-files { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 12px 0; padding: 0; list-style: none; }
.sd-files li { position: relative; display: grid; justify-items: center; gap: 8px; padding: 14px 8px; border-radius: 14px; background: rgba(255, 255, 255, 0.04); font-size: 0.85rem; font-weight: 600; color: var(--ink-3); transition: all 0.5s var(--ease-spring); }
.sd-icon svg { width: 26px; height: 26px; }
.sd-tick { position: absolute; top: 8px; right: 8px; display: grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: var(--good); color: #04261a; opacity: 0; transform: scale(0.4); transition: all 0.4s var(--ease-spring); }
.sd-tick svg { width: 11px; height: 11px; }
.sd-files li.is-on { color: var(--ink); background: rgba(59, 130, 246, 0.14); box-shadow: 0 0 0 1px rgba(91, 155, 255, 0.35) inset; transform: translateY(-3px); }
.sd-files li.is-on .sd-tick { opacity: 1; transform: none; }
.sd-bar, .session-bar { height: 6px; border-radius: 6px; background: rgba(255, 255, 255, 0.08); overflow: hidden; }
.sd-bar span, .session-bar span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--blue), var(--cyan)); transition: width 0.5s var(--ease); }
html:not(.js) .sd-files li { color: var(--ink); }

/* Session demo */
.session-times { position: relative; display: inline-grid; grid-template-columns: repeat(4, 1fr); gap: 4px; padding: 4px; border-radius: 14px; background: rgba(255, 255, 255, 0.04); box-shadow: 0 0 0 1px var(--line) inset; }
.session-times button { position: relative; z-index: 1; min-width: 58px; height: 40px; border: 0; border-radius: 10px; background: transparent; color: var(--ink-2); font: inherit; font-family: var(--mono); font-weight: 600; cursor: pointer; transition: color 0.3s; }
.session-times button[aria-checked='true'] { color: #0b0e14; }
.session-times-pill { position: absolute; z-index: 0; top: 4px; bottom: 4px; left: 0; width: var(--tw, 58px); transform: translateX(var(--tx, 4px)); border-radius: 10px; background: var(--ink); box-shadow: 0 6px 18px -6px rgba(255, 255, 255, 0.5); transition: transform 0.5s var(--ease-spring), width 0.4s var(--ease); }
html:not(.js) .session-times button[aria-checked='true'] { background: var(--ink); }
.session-board { display: grid; grid-template-columns: 120px 1fr; gap: 22px; align-items: start; margin-top: 18px; }
.session-clock { position: relative; width: 120px; height: 120px; }
.session-clock svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.session-clock circle { fill: none; stroke: rgba(255, 255, 255, 0.07); stroke-width: 8; }
.session-clock .session-ring { stroke: var(--blue-2); stroke-linecap: round; stroke-dasharray: 326.7; stroke-dashoffset: calc(326.7 * (1 - var(--ring, 0.6))); transition: stroke-dashoffset 0.7s var(--ease); filter: drop-shadow(0 0 6px rgba(91, 155, 255, 0.6)); }
.session-clock p { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.session-clock b { font-family: var(--display); font-size: 2.3rem; line-height: 1; letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.session-clock small { color: var(--ink-3); font-family: var(--mono); font-size: 0.7rem; }
.session-topic { color: var(--ink-3); font-size: 0.85rem; }
.session-topic b { color: var(--marker); }
.session-progress { margin: 4px 0 10px; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); }
.session-steps { display: grid; gap: 6px; margin: 14px 0 0; padding: 0; list-style: none; }
.session-steps:not([hidden]) { animation: mg-in 0.45s var(--ease); }
.session-steps li { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 10px; color: var(--ink-2); font-size: 0.92rem; transition: all 0.4s var(--ease); }
.session-index { display: grid; place-items: center; width: 24px; height: 24px; flex: none; border-radius: 50%; font-family: var(--mono); font-size: 0.72rem; box-shadow: 0 0 0 1.5px var(--line-2) inset; transition: all 0.4s var(--ease); }
.session-steps li.is-done { color: var(--ink); }
.session-steps li.is-done .session-index { background: var(--good); color: #04261a; box-shadow: none; }
.session-steps li.is-now { color: var(--ink); background: rgba(59, 130, 246, 0.14); }
.session-steps li.is-now .session-index { background: var(--blue); color: #fff; box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.25); }
.session-foot { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 18px; }
.session-done { display: inline-flex; align-items: center; gap: 8px; color: var(--warm); font-weight: 600; font-size: 0.92rem; }
.session-done:not([hidden]) { animation: mg-in 0.5s var(--ease-spring); }
.session-done svg { width: 18px; height: 18px; }
.session.is-flash { animation: mg-flash 1.2s var(--ease); }
@keyframes mg-flash { 0% { box-shadow: 0 0 0 1px var(--marker) inset, 0 0 0 0 rgba(243, 210, 90, 0.6); } 100% { box-shadow: 0 0 0 1px var(--line) inset, 0 0 0 18px rgba(243, 210, 90, 0); } }

/* ---------- Study modes studio ---------- */

.mg-features { overflow: clip; }
.mg-features-bg { position: absolute; inset: 10% -10% auto; height: 80%; z-index: -1; background: radial-gradient(40% 50% at 30% 50%, rgba(109, 107, 255, 0.16), transparent 70%), radial-gradient(35% 45% at 75% 45%, rgba(34, 211, 238, 0.1), transparent 70%); filter: blur(20px); }
.mg-studio { display: grid; grid-template-columns: 320px 1fr; gap: 20px; align-items: stretch; }
.st-tabs { position: relative; display: grid; gap: 6px; align-content: start; }
.st-tab-pill { position: absolute; left: 0; right: 0; top: 0; height: var(--th, 72px); transform: translateY(var(--ty, 0)); border-radius: 18px; background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03)); box-shadow: 0 0 0 1px var(--line-2) inset, 0 20px 40px -24px rgba(0,0,0,.8); transition: transform 0.55s var(--ease-spring), height 0.4s var(--ease); }
.st-tab { position: relative; z-index: 1; display: flex; gap: 14px; align-items: center; width: 100%; padding: 14px; border: 0; border-radius: 18px; background: transparent; color: var(--ink-2); font: inherit; text-align: left; cursor: pointer; transition: color 0.3s; }
.st-tab:hover { color: var(--ink); }
.st-tab[aria-selected='true'] { color: var(--ink); }
html:not(.js) .st-tab[aria-selected='true'] { background: rgba(255, 255, 255, 0.06); }
.st-tab-icon { display: grid; place-items: center; width: 42px; height: 42px; flex: none; border-radius: 13px; background: rgba(255, 255, 255, 0.05); box-shadow: 0 0 0 1px var(--line) inset; transition: all 0.35s var(--ease); }
.st-tab-icon svg { width: 21px; height: 21px; }
.st-tab[aria-selected='true'] .st-tab-icon { background: var(--blue); color: #fff; box-shadow: 0 8px 22px -8px rgba(59, 130, 246, 0.9); }
.st-tab-text b { display: block; font-family: var(--display); font-size: 1.08rem; font-weight: 650; letter-spacing: -0.02em; }
.st-tab-text small { display: block; color: var(--ink-3); font-size: 0.82rem; line-height: 1.4; }
.st-stage { min-height: 500px; overflow: hidden; }
.st-panel { height: 100%; display: flex; flex-direction: column; }
.st-panel:not([hidden]) { animation: st-in 0.6s var(--ease); }
@keyframes st-in { from { opacity: 0; transform: translateY(16px) scale(0.985); filter: blur(4px); } }
.st-window-bar { display: flex; align-items: center; gap: 14px; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.st-lights { display: flex; gap: 6px; }
.st-lights i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, 0.12); }
.st-lights i:first-child { background: #fb7185; } .st-lights i:nth-child(2) { background: #fbbf24; } .st-lights i:nth-child(3) { background: #34d399; }
.st-window-title { display: inline-flex; align-items: center; gap: 8px; margin-right: auto; font-weight: 600; font-size: 0.9rem; color: var(--ink-2); }
.st-window-title svg { width: 16px; height: 16px; }
.st-body { flex: 1; display: grid; place-items: center; padding: clamp(20px, 4vw, 44px); }
.st-body > div { width: min(100%, 520px); }
.st-meta { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }
.st-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
/* lesson */
.st-segs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin: 12px 0 22px; }
.st-segs span { height: 4px; border-radius: 4px; background: rgba(255, 255, 255, 0.1); transition: background 0.4s; }
.st-segs span.is-on { background: var(--marker); }
.st-slides { min-height: 160px; }
.st-slide:not([hidden]) { animation: st-in 0.5s var(--ease); }
.st-slide-h { font-family: var(--display); font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 700; letter-spacing: -0.04em; margin-bottom: 12px; }
.st-slide-p { color: var(--ink-2); font-size: 1.1rem; }
.st-slide-p mark { background: linear-gradient(transparent 55%, rgba(243, 210, 90, 0.5) 55%); color: var(--ink); padding: 0 2px; }
.st-lesson .btn { margin-top: 24px; }
/* flashcards */
.st-card-stack { position: relative; height: 230px; margin-top: 14px; perspective: 1200px; }
.st-card-shadow { position: absolute; inset: 0; border-radius: 22px; background: rgba(255, 255, 255, 0.05); box-shadow: 0 0 0 1px var(--line) inset; transform: translateY(10px) scale(0.95); }
.st-card-shadow.is-2 { transform: translateY(20px) scale(0.9); opacity: 0.5; }
.st-card { position: absolute; inset: 0; padding: 0; border: 0; background: none; color: inherit; font: inherit; cursor: pointer; border-radius: 22px; }
.st-card-inner { position: relative; display: block; width: 100%; height: 100%; transform-style: preserve-3d; transition: transform 0.75s var(--ease-spring); }
.st-card[aria-pressed='true'] .st-card-inner { transform: rotateY(180deg); }
.st-card-face { position: absolute; inset: 0; display: grid; place-items: center; padding: 28px; border-radius: 22px; text-align: center; -webkit-backface-visibility: hidden; backface-visibility: hidden; font-family: var(--display); font-size: clamp(1.3rem, 2.6vw, 1.7rem); font-weight: 650; letter-spacing: -0.03em; line-height: 1.2; }
.st-front { background: #f4f6fb; color: #0b0e14; box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.9); }
.st-front::after { content: '↻'; position: absolute; right: 18px; bottom: 14px; font-size: 1rem; color: #8a93a5; }
.st-back { background: linear-gradient(145deg, #1d3b78, #13213f); color: var(--ink); transform: rotateY(180deg); box-shadow: 0 0 0 1px rgba(91, 155, 255, 0.4) inset, 0 30px 60px -30px rgba(0, 0, 0, 0.9); font-family: var(--sans); font-size: 1.15rem; font-weight: 550; letter-spacing: -0.01em; }
.st-card.is-out .st-card-inner { animation: st-swipe 0.45s var(--ease) forwards; }
.st-card.is-out-left .st-card-inner { animation: st-swipe-l 0.45s var(--ease) forwards; }
@keyframes st-swipe { to { transform: translateX(120%) rotate(14deg); opacity: 0; } }
@keyframes st-swipe-l { to { transform: translateX(-120%) rotate(-14deg); opacity: 0; } }
.st-cards-done { margin-top: 14px; color: var(--good); font-weight: 600; }
/* quiz */
.st-q { font-family: var(--display); font-size: clamp(1.35rem, 2.6vw, 1.75rem); font-weight: 650; letter-spacing: -0.03em; line-height: 1.2; margin-bottom: 20px; }
.st-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0; padding: 0; list-style: none; }
.st-opt { display: flex; align-items: center; gap: 12px; width: 100%; min-height: 58px; padding: 10px 14px; border: 0; border-radius: 14px; background: rgba(255, 255, 255, 0.04); color: var(--ink); font: inherit; font-size: 0.95rem; font-weight: 550; text-align: left; cursor: pointer; box-shadow: 0 0 0 1px var(--line) inset; transition: all 0.3s var(--ease); }
.st-opt:hover:not([disabled]) { background: rgba(255, 255, 255, 0.08); transform: translateY(-2px); }
.st-opt-key { display: grid; place-items: center; width: 28px; height: 28px; flex: none; border-radius: 8px; background: rgba(255, 255, 255, 0.07); font-family: var(--mono); font-size: 0.78rem; }
.st-opt.is-right { background: rgba(52, 211, 153, 0.16); box-shadow: 0 0 0 1.5px var(--good) inset; }
.st-opt.is-right .st-opt-key { background: var(--good); color: #04261a; }
.st-opt.is-wrong { background: rgba(251, 113, 133, 0.12); box-shadow: 0 0 0 1.5px var(--bad) inset; animation: st-shake 0.45s; }
.st-opt[disabled] { cursor: default; }
@keyframes st-shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
.st-feedback { min-height: 1.6em; margin-top: 16px; font-weight: 550; }
.st-feedback.is-right { color: var(--good); } .st-feedback.is-wrong { color: var(--bad); }
/* exam */
.st-exam-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; margin-bottom: 18px; }
.st-exam-title { font-family: var(--display); font-size: 1.5rem; font-weight: 700; letter-spacing: -0.03em; }
.st-timer { padding: 8px 12px; border-radius: 12px; background: rgba(255, 255, 255, 0.05); font-family: var(--mono); font-size: 1.3rem; font-weight: 600; font-variant-numeric: tabular-nums; box-shadow: 0 0 0 1px var(--line) inset; }
.st-exam.is-running .st-timer { color: var(--marker); box-shadow: 0 0 0 1px rgba(243, 210, 90, 0.4) inset; }
.st-exam-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; margin-bottom: 14px; }
.st-exam-grid span { display: grid; place-items: center; height: 46px; border-radius: 12px; background: rgba(255, 255, 255, 0.04); box-shadow: 0 0 0 1px var(--line) inset; font-family: var(--mono); font-size: 0.85rem; color: var(--ink-3); transition: all 0.35s var(--ease-spring); }
.st-exam-grid span.is-done { background: rgba(59, 130, 246, 0.22); color: var(--ink); box-shadow: 0 0 0 1px rgba(91, 155, 255, 0.5) inset; transform: scale(1.04); }
.st-exam-grid span.is-now { box-shadow: 0 0 0 2px var(--marker) inset; color: var(--marker); }
.st-exam-result:not([hidden]) { animation: st-in 0.5s var(--ease); }
.st-exam-result { margin-top: 6px; }
.st-bars { display: grid; gap: 10px; margin: 16px 0; padding: 0; list-style: none; }
.st-bars li { display: grid; grid-template-columns: 120px 1fr; gap: 12px; align-items: center; font-size: 0.9rem; }
.st-bar { height: 10px; border-radius: 10px; background: rgba(255, 255, 255, 0.07); overflow: hidden; }
.st-bar span { display: block; height: 100%; width: calc(var(--v) * 1%); border-radius: inherit; background: linear-gradient(90deg, var(--blue), var(--cyan)); transform-origin: 0 0; animation: st-grow 1s var(--ease) both; animation-delay: calc(var(--k) * 0.12s + 0.2s); }
.st-bars li:last-child .st-bar span { background: linear-gradient(90deg, var(--warm), var(--marker)); }
@keyframes st-grow { from { transform: scaleX(0); } }
/* tutor */
.st-tutor { display: flex; flex-direction: column; gap: 14px; height: 100%; }
.st-chat { display: grid; gap: 12px; align-content: start; min-height: 230px; max-height: 300px; overflow-y: auto; padding: 4px; scroll-behavior: smooth; }
.st-msg { display: flex; gap: 10px; align-items: flex-end; animation: st-in 0.4s var(--ease); }
.st-msg p { max-width: 85%; padding: 12px 15px; border-radius: 18px 18px 18px 6px; background: rgba(255, 255, 255, 0.06); box-shadow: 0 0 0 1px var(--line) inset; font-size: 0.95rem; line-height: 1.5; }
.st-msg.is-you { justify-content: flex-end; }
.st-msg.is-you p { border-radius: 18px 18px 6px 18px; background: var(--blue); box-shadow: none; color: #fff; }
.st-avatar { display: grid; place-items: center; width: 30px; height: 30px; flex: none; border-radius: 10px; background: linear-gradient(145deg, var(--blue), var(--indigo)); color: #fff; }
.st-avatar svg { width: 16px; height: 16px; }
.st-typing { display: inline-flex; gap: 4px; padding: 14px 16px !important; }
.st-typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-2); animation: st-type 1s infinite; }
.st-typing i:nth-child(2) { animation-delay: 0.15s; } .st-typing i:nth-child(3) { animation-delay: 0.3s; }
@keyframes st-type { 50% { transform: translateY(-4px); opacity: 0.4; } }
.st-prompts { display: flex; flex-wrap: wrap; gap: 8px; }
.st-prompt { padding: 10px 14px; border: 0; border-radius: 999px; background: rgba(255, 255, 255, 0.05); color: var(--ink); font: inherit; font-size: 0.86rem; font-weight: 550; cursor: pointer; box-shadow: 0 0 0 1px var(--line-2) inset; transition: all 0.25s var(--ease); }
.st-prompt:hover:not([disabled]) { background: rgba(59, 130, 246, 0.18); box-shadow: 0 0 0 1px rgba(91, 155, 255, 0.5) inset; }
.st-prompt[disabled] { opacity: 0.45; cursor: default; }

/* ---------- Progress bento ---------- */

.mg-bento { display: grid; grid-template-columns: 1.35fr 1fr; gap: 20px; }
.pg-card { padding: clamp(22px, 3vw, 32px); }
.pg-battle { grid-column: 1 / -1; }
.pg-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 22px; }
.pg-head h3 { font-size: 1.4rem; margin-right: auto; }
.pg-sub { order: 5; width: 100%; color: var(--ink-3); font-size: 0.88rem; }
.pg-icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 13px; background: rgba(59, 130, 246, 0.14); color: var(--blue-2); }
.pg-icon.is-warm { background: rgba(251, 146, 60, 0.15); color: var(--warm); }
.pg-icon svg { width: 22px; height: 22px; }
.pg-note { color: var(--ink-2); font-size: 0.95rem; margin-top: 18px; }
.pg-score-body { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: end; }
.pg-gauge { position: relative; width: 100%; max-width: 340px; margin-inline: auto; }
.pg-gauge svg { width: 100%; overflow: visible; }
.pg-gauge path { fill: none; stroke-width: 14; stroke-linecap: round; }
.pg-gauge-track { stroke: rgba(255, 255, 255, 0.07); }
.pg-gauge-fill { stroke: url(#none); stroke: var(--blue-2); stroke-dasharray: 100; stroke-dashoffset: 100; transition: stroke-dashoffset 1.8s var(--ease) 0.2s; filter: drop-shadow(0 0 10px rgba(91, 155, 255, 0.6)); }
.is-in .pg-gauge-fill, html:not(.js) .pg-gauge-fill { stroke-dashoffset: 28; } /* 72 of 100 */
.pg-gauge-num { position: absolute; left: 0; right: 0; bottom: 0; text-align: center; }
.pg-gauge-num b { display: block; font-family: var(--display); font-size: clamp(2.4rem, 5vw, 3.4rem); line-height: 1; letter-spacing: -0.05em; font-variant-numeric: tabular-nums; }
.pg-gauge-num small { color: var(--good); font-family: var(--mono); font-size: 0.78rem; }
.pg-label { color: var(--ink-3); font-size: 0.8rem; margin-bottom: 10px; }
.pg-streak-num { display: flex; align-items: baseline; gap: 10px; }
.pg-streak-num b { font-family: var(--display); font-size: 4rem; line-height: 1; letter-spacing: -0.05em; background: linear-gradient(180deg, #fde68a, var(--warm)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.pg-streak-num b.is-bump { animation: pg-bump 0.7s var(--ease-spring); }
@keyframes pg-bump { 40% { transform: scale(1.3); } }
.pg-streak-num small { color: var(--ink-2); }
.pg-days { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin: 20px 0 0; padding: 0; list-style: none; }
.pg-days li { display: grid; justify-items: center; gap: 6px; }
.pg-flame { display: grid; place-items: center; width: 100%; aspect-ratio: 1; max-width: 44px; border-radius: 12px; background: rgba(255, 255, 255, 0.04); color: var(--ink-3); box-shadow: 0 0 0 1px var(--line) inset; transition: all 0.4s var(--ease-spring); }
.pg-flame svg { width: 60%; height: 60%; }
.pg-days li.is-lit .pg-flame { background: rgba(251, 146, 60, 0.16); color: var(--warm); box-shadow: 0 0 0 1px rgba(251, 146, 60, 0.4) inset; }
.pg-days li.is-today .pg-flame { box-shadow: 0 0 0 1.5px rgba(251, 146, 60, 0.6) inset; animation: pg-wait 1.6s ease-in-out infinite; }
.pg-days li.is-today.is-lit .pg-flame { animation: pg-light 0.8s var(--ease-spring); background: var(--warm); color: #2a1202; box-shadow: 0 0 30px rgba(251, 146, 60, 0.7); }
@keyframes pg-wait { 50% { box-shadow: 0 0 0 1.5px rgba(251, 146, 60, 0.15) inset; } }
@keyframes pg-light { 0% { transform: scale(0.6); } 60% { transform: scale(1.25); } }
.pg-days small { font-family: var(--mono); font-size: 0.66rem; color: var(--ink-3); }
.pg-streak .btn { margin-top: 18px; }
.pg-arena { display: grid; grid-template-columns: 1fr auto 1fr; gap: 20px; align-items: center; }
.pg-player { display: grid; justify-items: center; gap: 6px; padding: 20px; border-radius: 20px; background: rgba(255, 255, 255, 0.03); box-shadow: 0 0 0 1px var(--line) inset; transition: all 0.4s var(--ease); }
.pg-player.is-winner { background: rgba(243, 210, 90, 0.08); box-shadow: 0 0 0 1.5px var(--marker) inset, 0 0 50px -10px rgba(243, 210, 90, 0.5); }
.pg-avatar { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 18px; font-family: var(--display); font-size: 1.4rem; font-weight: 700; background: linear-gradient(145deg, var(--blue), var(--indigo)); color: #fff; }
.is-rival .pg-avatar { background: linear-gradient(145deg, #f472b6, #a855f7); }
.pg-score-num { font-family: var(--display); font-size: 2.4rem; font-weight: 700; letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.pg-qdots { display: flex; gap: 6px; }
.pg-qdots i { width: 12px; height: 12px; border-radius: 50%; background: rgba(255, 255, 255, 0.1); transition: all 0.3s var(--ease-spring); }
.pg-qdots i.is-right { background: var(--good); box-shadow: 0 0 10px var(--good); }
.pg-qdots i.is-wrong { background: var(--bad); }
.pg-vs { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 50%; background: radial-gradient(circle, rgba(243, 210, 90, 0.25), transparent 70%); }
.pg-vs span { font-family: var(--display); font-size: 1.3rem; font-weight: 800; letter-spacing: -0.02em; color: var(--marker); }
.pg-battle.is-running .pg-vs { animation: pg-pulse 0.8s ease-in-out infinite; }
@keyframes pg-pulse { 50% { transform: scale(1.15); } }
.pg-tug { position: relative; height: 8px; margin-top: 22px; border-radius: 8px; background: linear-gradient(90deg, var(--blue) 50%, #c084fc 50%); background-size: 200% 100%; background-position: calc(50% - var(--tug, 0) * 50%) 0; transition: background-position 0.6s var(--ease); }
.pg-tug span { position: absolute; left: calc(50% + var(--tug, 0) * 50%); top: 50%; width: 18px; height: 18px; margin: -9px; border-radius: 50%; background: var(--ink); box-shadow: 0 0 16px rgba(255, 255, 255, 0.6); transition: left 0.6s var(--ease-spring); }
.pg-battle-foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 8px; }
.pg-battle-foot .pg-note { flex: 1; min-width: 220px; }

.pg-gauge-num b i { font-style: normal; font-size: 0.38em; color: var(--ink-3); letter-spacing: 0; margin-left: 2px; }
.pg-tier { display: inline-block; margin: 6px 0 2px; padding: 2px 10px; border-radius: 999px; background: rgba(91, 155, 255, 0.14); color: var(--blue-2); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; }
.pg-gauge-num small { display: block; }
.pg-parts ul { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
.pg-parts li { display: grid; grid-template-columns: 1fr auto; gap: 6px 10px; align-items: baseline; font-size: 0.9rem; }
.pg-parts b { font-family: var(--mono); font-size: 0.85rem; }
.pg-part-name { color: var(--ink-2); }
.pg-part-bar { grid-column: 1 / -1; height: 7px; border-radius: 7px; background: rgba(255, 255, 255, 0.07); overflow: hidden; }
.pg-part-bar span { display: block; height: 100%; width: calc(var(--v) * 1%); border-radius: inherit; background: linear-gradient(90deg, var(--blue), var(--cyan)); transform-origin: 0 0; transform: scaleX(0); transition: transform 1s var(--ease); transition-delay: calc(var(--k) * 90ms + 0.3s); }
.pg-parts li:nth-child(3) .pg-part-bar span { background: linear-gradient(90deg, var(--warm), var(--marker)); }
.is-in .pg-part-bar span, html:not(.js) .pg-part-bar span { transform: scaleX(1); }
.mg-float b i { font-style: normal; font-size: 0.7em; color: var(--ink-3); margin-left: 1px; }

/* ---------- Who + principle ---------- */

.mg-who-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: stretch; }
.who { margin: 0; padding: 0; border: 0; background: none; box-shadow: none; }
.who h3, .who-copy h3 { font-size: clamp(1.8rem, 3vw, 2.4rem); margin-bottom: 14px; }
.who-copy p { color: var(--ink-2); font-size: 1.05rem; max-width: 32em; }
.who-areas { margin-top: 26px; }
.who-levels { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.who-level { display: flex; align-items: center; gap: 14px; padding: 12px 18px 12px 12px; border-radius: 16px; background: rgba(255, 255, 255, 0.03); box-shadow: 0 0 0 1px var(--line) inset; transition: transform 0.4s var(--ease), background 0.3s; }
.who-level:hover { transform: translateX(6px); background: rgba(255, 255, 255, 0.06); }
.who-level-icon { display: grid; place-items: center; width: 44px; height: 44px; flex: none; border-radius: 13px; background: rgba(59, 130, 246, 0.12); color: var(--blue-2); }
.who-level-icon svg { width: 22px; height: 22px; }
.who-level-label { font-family: var(--display); font-size: 1.15rem; font-weight: 650; letter-spacing: -0.02em; }
.who-note { margin-top: 16px; color: var(--ink-3); font-size: 0.92rem; }
.who-subject { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.who-subject::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--marker); box-shadow: 0 0 10px var(--marker); }
.who-subject-words { display: grid; font-family: var(--display); font-size: 1.5rem; font-weight: 700; letter-spacing: -0.03em; color: var(--marker); }
.who-subject-words > span { grid-area: 1 / 1; opacity: 0; transform: translateY(60%); filter: blur(4px); transition: all 0.6s var(--ease); }
.who-subject-words > span.is-on { opacity: 1; transform: none; filter: none; }
.who-subject-words [data-who-word]::before { content: none; }
.mg-sheet-actions .lang { grid-column: 1 / -1; width: 100%; height: 44px; }
.mg-principle { display: grid; align-content: end; min-height: 460px; padding: clamp(26px, 4vw, 44px); overflow: hidden; background: radial-gradient(80% 60% at 80% 0%, rgba(243, 210, 90, 0.12), transparent 60%), linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.015)); }
.mg-principle .kicker { color: var(--marker); }
.mg-principle h2 { font-size: clamp(2.1rem, 4vw, 3.2rem); line-height: 1; max-width: 10em; }
.mg-principle p:last-child { margin-top: 16px; color: var(--ink-2); max-width: 32em; }
.mg-sheets { position: absolute; right: 8%; top: 9%; width: 46%; height: 46%; }
.mg-sheet-card { position: absolute; right: 0; top: 0; width: 72%; aspect-ratio: 0.78; display: grid; align-content: end; padding: 12px; border-radius: 12px; background: #f4f6fb; color: #0b0e14; font-weight: 650; font-size: 0.82rem; box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.9); transform: rotate(calc((var(--k) - 1.5) * 7deg)) translate(calc((var(--k) - 1.5) * -16px), calc(var(--k) * 6px)); transition: transform 0.7s var(--ease-spring); }
.mg-sheet-card:nth-child(4) { background: var(--marker); }
.mg-principle:hover .mg-sheet-card { transform: rotate(calc((var(--k) - 1.5) * 14deg)) translate(calc((var(--k) - 1.5) * -44px), calc(var(--k) * 10px - 10px)); }
.mg-sheet-lines { position: absolute; inset: 14px 12px auto; height: 55%; background: repeating-linear-gradient(180deg, rgba(11, 14, 20, 0.14) 0 2px, transparent 2px 9px); }

/* ---------- CTA ---------- */

.mg-cta { position: relative; padding: clamp(110px, 16vw, 200px) 0; overflow: hidden; text-align: center; isolation: isolate; }
.mg-cta-bg { position: absolute; inset: 0; z-index: -1; display: grid; place-items: center; background: radial-gradient(50% 50% at 50% 50%, rgba(59, 130, 246, 0.22), transparent 70%); }
.mg-cta-bg::after { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(148, 163, 184, 0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(148, 163, 184, 0.08) 1px, transparent 1px); background-size: 44px 44px; -webkit-mask-image: radial-gradient(closest-side, #000, transparent); mask-image: radial-gradient(closest-side, #000, transparent); transform: perspective(600px) rotateX(55deg) translateY(30%); transform-origin: 50% 100%; }
.mg-cta-ring { position: absolute; width: 360px; height: 360px; border-radius: 50%; border: 1px solid rgba(147, 187, 255, 0.25); animation: mg-ring 6s var(--ease) infinite; }
.mg-cta-ring.is-2 { animation-delay: -2s; } .mg-cta-ring.is-3 { animation-delay: -4s; }
@keyframes mg-ring { from { transform: scale(0.4); opacity: 0; } 30% { opacity: 1; } to { transform: scale(2.6); opacity: 0; } }
.mg-cta-title { font-size: clamp(2.8rem, 8vw, 6.4rem); line-height: 0.95; letter-spacing: -0.05em; color: transparent; background: linear-gradient(180deg, #fff 30%, rgba(255, 255, 255, 0.45)); -webkit-background-clip: text; background-clip: text; }
.mg-cta .mg-lede { margin: 24px auto 0; }

/* ---------- FAQ ---------- */

.mg-faq-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 56px; align-items: start; }
.mg-faq-side { position: sticky; top: 120px; }
.mg-faq-side .mg-lede { margin-top: 18px; }
.mg-mail { display: inline-flex; align-items: center; gap: 10px; margin-top: 18px; color: var(--marker); font-weight: 600; text-decoration: none; }
.mg-mail svg { width: 20px; height: 20px; }
.mg-mail:hover { text-decoration: underline; text-underline-offset: 4px; }
.faq-list { display: grid; gap: 10px; margin: 0; border: 0; }
.faq-list details { border-radius: 18px; background: rgba(255, 255, 255, 0.03); box-shadow: 0 0 0 1px var(--line) inset; transition: background 0.3s; border: 0; }
.faq-list details[open] { background: rgba(255, 255, 255, 0.055); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 64px; padding: 14px 20px; list-style: none; cursor: pointer; font-weight: 620; font-size: 1.02rem; letter-spacing: -0.01em; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: '+'; display: grid; place-items: center; width: 30px; height: 30px; flex: none; border-radius: 50%; background: rgba(255, 255, 255, 0.06); font-size: 1.2rem; font-weight: 400; transition: transform 0.4s var(--ease), background 0.3s; border: 0; margin: 0; transform: none; }
.faq-list details[open] summary::after { transform: rotate(45deg); background: var(--marker); color: #1a1405; }
.faq-a { display: grid; grid-template-rows: 1fr; }
.faq-a > div { overflow: hidden; }
.faq-list details p { padding: 0 20px 20px; color: var(--ink-2); max-width: 62ch; }
.faq-list details[open] .faq-a > div { animation: mg-in 0.45s var(--ease); }

/* ---------- Footer ---------- */

.site-footer.mg-footer { position: relative; margin-top: 0; padding: 80px 0 0; border-top: 1px solid var(--line); background: linear-gradient(180deg, var(--bg), #05070a); overflow: hidden; }
.mg-footer-glow { position: absolute; left: 50%; top: 0; width: 70%; height: 1px; transform: translateX(-50%); background: linear-gradient(90deg, transparent, var(--blue-2), var(--marker), transparent); }
.mg-footer-grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: 32px; }
.mg-footer-brand p { color: var(--ink-2); font-size: 0.92rem; margin-top: 8px; max-width: 24em; }
.mg-footer-brand .footer-slogan { margin-top: 18px; color: var(--ink); font-family: var(--display); font-size: 1.3rem; font-weight: 650; letter-spacing: -0.02em; }
.mg-footer-cta { margin-top: 22px; }
.footer-label { margin-bottom: 14px; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.mg-footer-col p { margin: 0 0 10px; }
.footer-privacy, .footer-email a { color: var(--ink-2); font-size: 0.92rem; text-decoration: none; transition: color 0.2s; }
.footer-privacy:hover, .footer-email a:hover { color: var(--ink); }
.footer-copy { color: var(--ink-3); font-size: 0.85rem; margin-top: 18px !important; }
.footer-compare, .footer-meta { margin: 0; text-align: left; }
.mg-wordmark { position: relative; margin: 60px 0 -0.18em; text-align: center; font-family: var(--display); font-size: clamp(4rem, 17.5vw, 17rem); font-weight: 800; line-height: 1; letter-spacing: -0.06em; white-space: nowrap; user-select: none; }
.mg-wordmark span { color: transparent; background: radial-gradient(420px circle at var(--wx, 50%) var(--wy, 50%), rgba(243, 210, 90, 0.9), rgba(91, 155, 255, 0.5) 35%, rgba(255, 255, 255, 0.05) 70%); -webkit-background-clip: text; background-clip: text; -webkit-text-stroke: 1px rgba(148, 163, 184, 0.16); }

/* ---------- Install ---------- */

.install-bar { position: fixed; left: 12px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom)); z-index: 95; border-radius: 22px; background: rgba(14, 18, 26, 0.86); border: 1px solid var(--line-2); box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.9); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); transform: translateY(140%); transition: transform 0.6s var(--ease); }
.install-bar.is-up { transform: none; }
.install-inner { display: flex; align-items: center; gap: 12px; padding: 10px 10px 10px 12px; }
.install-mark { width: 40px; height: 40px; border-radius: 12px; }
.install-copy { flex: 1; min-width: 0; }
.install-title { font-weight: 650; font-size: 0.92rem; }
.install-note { color: var(--ink-2); font-size: 0.78rem; line-height: 1.35; }
.install-actions { display: flex; align-items: center; gap: 6px; }
.install-dismiss { width: 36px; height: 36px; border: 0; border-radius: 50%; background: rgba(255, 255, 255, 0.06); color: var(--ink-2); font-size: 1.3rem; cursor: pointer; }

/* ---------- Learning path (the app's subject map) ---------- */

.lp-chapter { position: relative; margin-top: 14px; padding: 16px 16px 8px 20px; border-radius: 22px; background: #121722; box-shadow: 0 0 0 1px rgba(148, 163, 184, 0.12) inset; overflow: hidden; }
.lp-chapter::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: #2563eb; }
.lp-chapter.is-active::before, .lp-chapter.is-locked::before { background: #4f46e5; }
.lp-chapter-head { display: flex; align-items: center; gap: 12px; }
.lp-badge { display: grid; place-items: center; width: 40px; height: 40px; flex: none; border-radius: 50%; background: #4338ca; color: #fff; font-weight: 700; font-size: 0.95rem; }
.lp-chapter.is-complete .lp-badge { background: #1d4ed8; }
.lp-badge svg { width: 20px; height: 20px; }
.lp-chapter-name { min-width: 0; flex: 1; }
.lp-chapter-no { color: #8b95a7; font-size: 0.82rem; font-weight: 600; }
.lp-chapter-title { color: #fff; font-family: var(--sans); font-size: 1.12rem; font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
.lp-pill { padding: 3px 10px; border-radius: 8px; background: rgba(34, 211, 238, 0.14); color: #22d3ee; font-size: 0.76rem; font-weight: 700; }
.lp-progress { display: flex; align-items: center; gap: 12px; margin: 14px 0 4px; }
.lp-bar { position: relative; flex: 1; height: 7px; border-radius: 7px; background: #1e2636; overflow: hidden; }
.lp-bar > span { position: absolute; inset: 0 auto 0 0; border-radius: inherit; background: #22d3ee; transition: width 0.6s var(--ease); }
.lp-progress small { color: #8b95a7; font-size: 0.78rem; font-weight: 600; white-space: nowrap; }
.lp-path { position: relative; margin-top: 6px; }
.lp-lines { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.lp-seg { fill: none; vector-effect: non-scaling-stroke; stroke-linecap: round; }
.lp-seg.is-lit { stroke: #38bdf8; stroke-width: 9; }
.lp-seg-shadow { fill: none; vector-effect: non-scaling-stroke; stroke: #0e4f6b; stroke-width: 15; stroke-linecap: round; opacity: 0.7; }
.lp-seg.is-dots { stroke: #4f46e5; stroke-width: 5; stroke-dasharray: 0 12; }
.lp-node { position: absolute; left: calc(var(--x) * 1%); top: var(--y); z-index: 1; display: grid; justify-items: center; width: 150px; margin: 0; padding: 0; border: 0; background: none; color: inherit; font: inherit; transform: translate(-50%, -38px); text-align: center; }
button.lp-node { cursor: pointer; }
.lp-orb { position: relative; display: grid; place-items: center; width: 76px; height: 76px; border-radius: 50%; transition: transform 0.35s var(--ease-spring), box-shadow 0.3s; }
.lp-orb svg { width: 32px; height: 32px; }
.lp-node.is-done .lp-orb { color: #fff; background: radial-gradient(circle at 35% 28%, #7ee8fa 0%, #22d3ee 38%, #0ea5c6 100%); box-shadow: 0 7px 0 #0e7490, 0 12px 24px -8px rgba(34, 211, 238, 0.55); }
.lp-node.is-done .lp-orb::after { content: ''; position: absolute; left: 22%; top: 12%; width: 30%; height: 18%; border-radius: 50%; background: rgba(255, 255, 255, 0.55); transform: rotate(-20deg); }
.lp-node.is-current .lp-orb { color: #fff; background: radial-gradient(circle at 35% 30%, #60a5fa, #2563eb 70%); box-shadow: 0 0 0 6px #0b1222, 0 0 0 9px #3b82f6, 0 0 40px 10px rgba(59, 130, 246, 0.35); }
.lp-node.is-locked .lp-orb { color: #64748b; background: #1c2333; box-shadow: 0 7px 0 #0d121c, 0 0 0 1px rgba(148, 163, 184, 0.08) inset; }
.lp-node.is-checkpoint .lp-orb { width: 88px; height: 88px; }
.lp-node.is-done.is-checkpoint .lp-orb { background: radial-gradient(circle at 35% 28%, #a5f3fc 0%, #22d3ee 40%, #0891b2 100%); }
.lp-label { margin-top: 14px; max-width: 150px; color: #fff; font-size: 0.86rem; font-weight: 700; line-height: 1.25; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.lp-node.is-locked .lp-label { color: #7b8496; font-weight: 600; }
.lp-score { margin-top: 6px; padding: 2px 9px; border-radius: 8px; background: rgba(34, 197, 94, 0.14); box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.25) inset; color: #4ade80; font-size: 0.74rem; font-weight: 700; }
.lp-continue { position: absolute; bottom: calc(100% + 2px); left: 50%; translate: -50% 0; padding: 5px 12px; border-radius: 10px; background: #3b82f6; color: #fff; font-size: 0.74rem; font-weight: 800; letter-spacing: 0.04em; white-space: nowrap; box-shadow: 0 6px 16px -6px rgba(59, 130, 246, 0.9); animation: lp-bob 2.2s ease-in-out infinite; }
.lp-continue::after { content: ''; position: absolute; left: 50%; top: 100%; translate: -50% 0; border: 6px solid transparent; border-top-color: #3b82f6; }
.lp-node.is-current { padding-top: 0; }
.lp-node.is-current .lp-orb::before { content: ''; position: absolute; inset: -16px; border-radius: 50%; border: 2px solid rgba(59, 130, 246, 0.35); animation: mg-ping 2.4s var(--ease) infinite; }
@keyframes lp-bob { 50% { translate: -50% -4px; } }
button.lp-node:hover .lp-orb { transform: translateY(-3px); }
button.lp-node:focus-visible { outline: none; }
button.lp-node:focus-visible .lp-orb, button.lp-node[aria-pressed='true'] .lp-orb { outline: 3px solid var(--marker); outline-offset: 5px; }
.lp-sm .lp-node { width: 120px; transform: translate(-50%, -26px); }
.lp-sm .lp-orb { width: 52px; height: 52px; }
.lp-sm .lp-orb svg { width: 22px; height: 22px; }
.lp-sm .lp-node.is-done .lp-orb, .lp-sm .lp-node.is-locked .lp-orb { box-shadow: 0 5px 0 #0e7490; }
.lp-sm .lp-node.is-locked .lp-orb { box-shadow: 0 5px 0 #0d121c; }
.lp-sm .lp-label { margin-top: 9px; font-size: 0.74rem; }
.lp-sm .lp-score { font-size: 0.66rem; margin-top: 4px; }
.lp-sm .lp-continue { font-size: 0.62rem; padding: 4px 9px; }
.lp-sm .lp-seg.is-lit { stroke-width: 7; }
.lp-sm .lp-seg-shadow { stroke-width: 11; }
.lp-ring { position: relative; display: grid; place-items: center; width: var(--s, 64px); height: var(--s, 64px); flex: none; }
.lp-ring svg { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); }
.lp-ring circle { fill: none; stroke: #1e2636; stroke-width: 6; }
.lp-ring .lp-ring-fill { stroke: #3b82f6; stroke-linecap: round; }
.lp-ring b { font-size: calc(var(--s, 64px) * 0.26); font-weight: 700; color: #fff; }
.lp-subject { display: flex; align-items: center; gap: 14px; }
.lp-subject > div { flex: 1; min-width: 0; }
.lp-subject-icon { display: grid; place-items: center; width: 52px; height: 52px; flex: none; border-radius: 14px; background: #172033; color: #3b82f6; }
.lp-subject-icon svg { width: 26px; height: 26px; }
.lp-subject-title { color: #fff; font-family: var(--sans); font-size: 1.45rem; font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
.lp-subject-sub { margin-top: 3px; color: #8b95a7; font-size: 0.86rem; }
.lp-next { display: flex; align-items: center; gap: 14px; margin-top: 18px; padding: 14px; border-radius: 18px; background: #0f1a30; box-shadow: 0 0 0 1.5px #2f6fe0 inset; }
.lp-next > div { flex: 1; min-width: 0; }
.lp-next-play { display: grid; place-items: center; width: 46px; height: 46px; flex: none; border-radius: 50%; background: #3b82f6; color: #fff; }
.lp-next-play svg { width: 18px; height: 18px; fill: currentColor; stroke: none; margin-left: 2px; }
.lp-next-label { color: #60a5fa; font-size: 0.78rem; font-weight: 700; }
.lp-next-title { color: #fff; font-weight: 700; font-size: 0.98rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lp-next-sub { color: #8b95a7; font-size: 0.8rem; }
.lp-next-arrow { color: #60a5fa; font-size: 1.6rem; line-height: 1; }
.lp-exam { display: flex; align-items: center; gap: 12px; margin-top: 10px; padding: 14px 16px; border-radius: 16px; background: #121722; box-shadow: 0 0 0 1px rgba(148, 163, 184, 0.14) inset; color: #fff; font-weight: 700; }
.lp-exam svg { width: 22px; height: 22px; color: #a78bfa; }
.lp-exam .lp-next-arrow { margin-left: auto; color: #a78bfa; }

/* Explorer: a phone-like scrolling map next to the lesson details */
.mx-panel { display: grid; grid-template-columns: minmax(0, 420px) 1fr; gap: 20px; align-items: start; justify-content: center; }
.mx-phone { position: relative; border-radius: 30px; padding: 8px; background: linear-gradient(145deg, #2a3242, #0f131b 50%, #1b2230); box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.9); }
.mx-app { height: 620px; overflow-y: auto; overscroll-behavior: contain; padding: 18px 14px 22px; border-radius: 24px; background: #0b0f17; scrollbar-width: thin; scrollbar-color: #2a3242 transparent; }
.mx-app:focus-visible { outline: 2px solid var(--marker); outline-offset: -2px; }
.mx-side { position: sticky; top: 110px; border-radius: 22px; padding: 24px; background: rgba(255, 255, 255, 0.03); box-shadow: 0 0 0 1px var(--line) inset; }
.mx-detail-meta { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--marker); }
.mx-detail-title { margin: 8px 0 14px; font-family: var(--display); font-size: 2rem; font-weight: 700; letter-spacing: -0.035em; line-height: 1.05; }
.mx-detail-status { display: inline-flex; padding: 6px 12px; border-radius: 10px; font-weight: 600; font-size: 0.92rem; background: rgba(255, 255, 255, 0.05); color: var(--ink-2); }
.mx-detail-status.is-done { background: rgba(34, 197, 94, 0.12); color: #4ade80; }
.mx-detail-status.is-current { background: rgba(59, 130, 246, 0.16); color: #93c5fd; }
.mx-detail-order { margin: 16px 0 22px; color: var(--ink-3); font-size: 0.86rem; }
.mx-side:not([hidden]) > * { animation: mg-in 0.4s var(--ease) both; }

/* Hero device + how-it-works step */
.dv-map-screen { padding: 14px 12px 0; overflow: hidden; }
.dv-subject { display: flex; align-items: center; gap: 10px; padding: 0 4px; }
.dv-subject > div { flex: 1; }
.dv-subject .dv-title { margin: 0; font-family: var(--sans); font-weight: 800; }
.dv-sub { color: #8b95a7; font-size: 0.74rem; }
.dv-map-screen .lp-chapter { padding: 12px 10px 4px 14px; margin-top: 10px; }
.dv-map-screen .lp-chapter-title { font-size: 0.95rem; }
.dv-map-screen .lp-badge { width: 32px; height: 32px; font-size: 0.8rem; }
.dv-map-screen .lp-progress small { font-size: 0.66rem; }
.dv-screen.is-on .lp-node { animation: dv-pop-node 0.55s var(--ease-spring) both; animation-delay: calc(0.25s + var(--k) * 0.22s); }
.dv-screen.is-on .lp-lines { animation: dv-show 0.6s both 0.2s; opacity: 0; }
@keyframes dv-pop-node { from { opacity: 0; scale: 0.6; } }
.sd-map .lp-chapter { margin-top: 0; }
.sd-map [data-beat] { transition: opacity 0.45s var(--ease), scale 0.45s var(--ease-spring); }
.js .sd-map.is-in [data-beat]:not(.is-on) { opacity: 0.18; scale: 0.92; }

/* ---------- Content pages (comparisons, about, guides) ---------- */

body:not(.mg-home) main { position: relative; }
.legal { padding: clamp(48px, 7vw, 96px) 0 clamp(80px, 10vw, 140px); }
.legal-inner { width: min(760px, calc(100% - 48px)); margin-inline: auto; }
.legal-wide .legal-inner { width: min(1040px, calc(100% - 48px)); }
.legal h1 { font-size: clamp(2.4rem, 5.6vw, 4.4rem); line-height: 1; letter-spacing: -0.045em; }
.legal .lede { margin-top: 22px; color: var(--ink-2); font-size: 1.15rem; line-height: 1.6; }
.legal h2 { margin: 3rem 0 1rem; font-size: clamp(1.6rem, 3vw, 2.2rem); line-height: 1.1; }
.legal p { color: var(--ink-2); margin: 0 0 1rem; }
.legal p strong, .legal strong { color: var(--ink); }
.legal a:not(.btn) { color: var(--blue-2); text-underline-offset: 3px; }
.legal a:not(.btn):hover { color: var(--marker); }
.legal .page-list { color: var(--ink-2); }
.legal .page-list li::marker { color: var(--marker); }
.compare { margin: 22px 0; padding: 6px 14px 10px; border-radius: 20px; background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.015)); border: 1px solid var(--line); overflow-x: auto; }
.compare th, .compare td { border-top: 1px solid var(--line); }
.compare thead th { border-top: 0; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }
.compare tbody tr { transition: background 0.2s; }
.compare tbody tr:hover { background: rgba(255, 255, 255, 0.03); }
.compare-adv thead th.adv-col:first-of-type { color: var(--marker); }
.legal .faq-list { margin-top: 22px; }
.legal .faq-list details p { padding: 0 20px 20px; margin: 0; }
.legal .page-cta, .page-cta { margin-top: 40px; }
.legal .who { margin-top: 30px; }
.js .legal-inner > * { animation: mg-page-in 0.9s var(--ease) both; }
.js .legal-inner > :nth-child(2) { animation-delay: 0.06s; } .js .legal-inner > :nth-child(3) { animation-delay: 0.12s; } .js .legal-inner > :nth-child(n + 4) { animation-delay: 0.18s; }
@keyframes mg-page-in { from { opacity: 0; transform: translateY(18px); } }

/* ---------- Content pages (guides, about, compare, vs, privacy) ---------- */

.ph { position: relative; isolation: isolate; overflow: clip; margin-top: calc(var(--header) * -1 - 12px); padding: calc(var(--header) + 56px) 0 56px; border-bottom: 1px solid var(--line); }
.ph-bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.ph-bg .mg-aurora-a { width: 46vw; height: 46vw; right: -10vw; top: -20vw; }
.ph-bg .mg-aurora-b { width: 34vw; height: 34vw; left: -12vw; bottom: -18vw; }
.ph-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 48px; align-items: center; }
.ph.is-plain .ph-grid { grid-template-columns: minmax(0, 760px); }
.ph-crumbs ol { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 22px; padding: 0; list-style: none; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.06em; color: var(--ink-3); }
.ph-crumbs li + li::before { content: '/'; margin-right: 6px; color: var(--line-2); }
.ph-crumbs a { color: var(--ink-2); text-decoration: none; }
.ph-crumbs a:hover { color: var(--marker); }
.ph-copy .kicker { color: var(--marker); }
.ph h1 { font-size: clamp(2.3rem, 4.8vw, 4rem); line-height: 1; letter-spacing: -0.045em; }
.ph .lede { margin-top: 22px; max-width: 40em; color: var(--ink-2); font-size: 1.1rem; line-height: 1.62; }
.ph .updated { margin-top: 16px; color: var(--ink-3); font-family: var(--mono); font-size: 0.8rem; }
.ph .hero-actions { margin-top: 30px; }
.ph-visual { display: grid; justify-items: center; }
.ph-app { width: min(100%, 340px); }
.ph-app-screen { padding: 18px 14px 6px; border-radius: 32px; background: #0b0f17; border: 8px solid #1b2230; box-shadow: 0 50px 100px -40px rgba(15, 50, 140, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.08); transform: rotate(-2deg); }
.ph-app .dv-title { margin: 0; font-family: var(--sans); font-size: 1.2rem; font-weight: 800; }
.ph-demo { margin-top: 16px; text-align: center; }
.ph-vs { width: min(100%, 440px); padding: 26px; }
.ph-vs-row { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px; }
.ph-vs-side { display: grid; justify-items: center; gap: 10px; padding: 22px 10px; border-radius: 20px; background: rgba(255, 255, 255, 0.03); box-shadow: 0 0 0 1px var(--line) inset; text-align: center; }
.ph-vs-side.is-mg { background: rgba(59, 130, 246, 0.1); box-shadow: 0 0 0 1.5px rgba(91, 155, 255, 0.5) inset, 0 0 50px -16px rgba(59, 130, 246, 0.8); }
.ph-vs-side b { font-family: var(--display); font-size: 1.1rem; letter-spacing: -0.02em; }
.ph-vs-mark { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 18px; background: linear-gradient(145deg, var(--blue), var(--indigo)); color: #fff; font-family: var(--display); font-weight: 800; font-size: 1.2rem; }
.ph-vs-mark.is-other { background: #232a38; color: var(--ink-2); }
.ph-vs-badge { font-family: var(--display); font-weight: 800; color: var(--marker); font-size: 1.2rem; }
.ph-vs-tally { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 18px; color: var(--ink); }
.ph-vs-tally .adv-glyph { color: #042f2e; background: #5eead4; }
.ph-hub { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; width: min(100%, 440px); padding: 22px; }
.ph-hub-tile { display: grid; place-items: center; min-height: 82px; padding: 10px; border-radius: 16px; background: rgba(255, 255, 255, 0.03); box-shadow: 0 0 0 1px var(--line) inset; font-family: var(--display); font-weight: 650; text-align: center; color: var(--ink-2); }
.ph-hub-tile.is-mg { color: #fff; background: rgba(59, 130, 246, 0.14); box-shadow: 0 0 0 1.5px rgba(91, 155, 255, 0.55) inset; }

.pg-body { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 56px; align-items: start; padding-top: clamp(40px, 6vw, 72px); }
.pg-body.is-narrow { grid-template-columns: minmax(0, 760px); justify-content: center; }
.pg-body .legal { padding: 0 0 clamp(56px, 8vw, 96px); }
.pg-body .legal-inner, .pg-body .legal-wide .legal-inner { width: auto; max-width: 820px; margin: 0; }
.pg-body.is-narrow .legal-inner { max-width: none; }
.pg-toc { position: sticky; top: 110px; }
.pg-toc ol { display: grid; gap: 2px; margin: 0; padding: 0 0 0 14px; list-style: none; border-left: 1px solid var(--line-2); }
.pg-toc a { position: relative; display: block; padding: 7px 0; color: var(--ink-3); font-size: 0.88rem; line-height: 1.35; text-decoration: none; transition: color 0.25s; }
.pg-toc a::before { content: ''; position: absolute; left: -16px; top: 9px; bottom: 9px; width: 3px; border-radius: 3px; background: var(--marker); transform: scaleY(0); transition: transform 0.3s var(--ease); }
.pg-toc a:hover { color: var(--ink); }
.pg-toc a.is-active { color: var(--ink); }
.pg-toc a.is-active::before { transform: scaleY(1); }
.legal h2 { scroll-margin-top: 110px; padding-top: 1.6rem; border-top: 1px solid var(--line); }
.legal-inner > h2:first-child, .legal-inner > div:first-child > h2:first-child { border-top: 0; padding-top: 0; margin-top: 0; }
.js .legal-inner > * { animation: none; }
.compare-adv:not(.compare-hub) thead th.adv-col:first-of-type, .compare-hub thead th.adv-col:last-child { color: var(--marker); }
.compare-adv:not(.compare-hub) tbody td.adv:first-of-type, .compare-hub tbody td.adv:last-child { background: rgba(59, 130, 246, 0.07); }
.compare-adv:not(.compare-hub) tbody tr:hover td.adv:first-of-type, .compare-hub tbody tr:hover td.adv:last-child { background: rgba(59, 130, 246, 0.12); }
.compare .adv-glyph { transition: transform 0.4s var(--ease-spring); }
.compare tbody tr:hover .adv-glyph { transform: scale(1.12); }
.page-cta { padding: 18px 20px; border-radius: 18px; background: rgba(255, 255, 255, 0.03); box-shadow: 0 0 0 1px var(--line) inset; }
.page-cta + .page-cta { margin-top: 12px; }

.pg-related { padding: clamp(56px, 8vw, 96px) 0 0; border-top: 1px solid var(--line); }
.pg-related-h { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 24px; }
.pg-related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.pg-card-link { display: grid; gap: 8px; align-content: start; min-height: 180px; padding: 24px; text-decoration: none; color: var(--ink); transition: transform 0.4s var(--ease); }
.pg-card-link:hover { transform: translateY(-4px); }
.pg-card-link .kicker { margin: 0; color: var(--ink-3); }
.pg-card-link b { font-family: var(--display); font-size: 1.4rem; letter-spacing: -0.03em; line-height: 1.1; }
.pg-card-blurb { color: var(--ink-2); font-size: 0.94rem; }
.pg-card-go { align-self: end; margin-top: 8px; color: var(--marker); }
.pg-card-go svg { width: 22px; height: 22px; transition: transform 0.35s var(--ease); }
.pg-card-link:hover .pg-card-go svg { transform: translateX(5px); }
.mg-cta.is-compact { padding: clamp(80px, 11vw, 140px) 0; }
.mg-cta.is-compact .mg-cta-title { font-size: clamp(2.4rem, 6vw, 4.6rem); }

@media (max-width: 1080px) {
  .ph-grid { grid-template-columns: 1fr; gap: 40px; }
  .pg-body { grid-template-columns: minmax(0, 1fr); }
  .pg-toc { display: none; }
}
@media (max-width: 860px) {
  .pg-related-grid { grid-template-columns: 1fr; }
  .pg-card-link { min-height: 0; }
  .ph { padding-top: calc(var(--header) + 32px); }
}
@media (max-width: 560px) {
  .ph .hero-actions .btn { width: 100%; }
  .ph-hub { grid-template-columns: repeat(2, 1fr); }
  .ph-vs { padding: 16px; }
  .ph-vs-side { padding: 16px 6px; }
}

.adv-price { display: inline-block; font-size: 0.82rem; font-weight: 600; line-height: 1.3; color: var(--ink-2); white-space: normal; }
.compare-hub td.adv-price-cell { vertical-align: middle; white-space: normal; padding-inline: 6px; }
.compare-hub tbody td.adv-price-cell:last-child .adv-price { color: var(--marker); font-size: 1rem; font-weight: 800; }
.compare-note { color: var(--ink-3); font-size: 0.88rem; }
.mg-cookies { position: fixed; left: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); z-index: 110; display: grid; gap: 14px; width: min(420px, calc(100% - 32px)); padding: 18px; border-radius: 20px; background: rgba(14, 18, 26, 0.94); border: 1px solid var(--line-2); box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.9); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); transform: translateY(20px); opacity: 0; transition: transform 0.5s var(--ease), opacity 0.4s; }
.mg-cookies.is-up { transform: none; opacity: 1; }
.mg-cookies p { color: var(--ink-2); font-size: 0.9rem; line-height: 1.5; }
.mg-cookies a { color: var(--ink); }
.mg-cookies-actions { display: flex; gap: 8px; justify-content: flex-end; }
.mg-link-button { padding: 0; border: 0; background: none; font: inherit; cursor: pointer; }
.pg-body .legal-wide .legal-inner { max-width: 1040px; }
.compare-hub table { min-width: 48rem; }
.compare-hub thead th:first-child, .compare-hub th[scope='row'] { width: 26%; }
@media (max-width: 860px) {
  .compare-hub { position: relative; }
  .compare-hub table { min-width: 44rem; }
  .compare-hub thead th:first-child, .compare-hub th[scope='row'] { position: sticky; left: 0; z-index: 1; width: 9.5rem; background: #121722; box-shadow: 8px 0 12px -10px rgba(0, 0, 0, 0.9); }
}
/* Footer: win over the older page stylesheet (marketing.css) on content pages. */
.site-footer.mg-footer { padding: 80px 0 0; color: var(--ink-2); }
.site-footer.mg-footer p { margin: 0 0 10px; font-size: 0.92rem; }
.site-footer.mg-footer .mg-footer-brand p { margin-top: 8px; }
.site-footer.mg-footer .footer-slogan { margin-top: 18px; color: var(--ink); font-family: var(--display); font-size: 1.3rem; }
.site-footer.mg-footer .footer-label { margin: 0 0 14px; color: var(--ink-3); font-family: var(--mono); font-weight: 500; font-size: 0.7rem !important; }
.site-footer.mg-footer a.footer-privacy { margin: 0; color: var(--ink-2); font-weight: 450; display: inline; }
.site-footer.mg-footer a.footer-privacy:hover { color: var(--ink); }
.site-footer.mg-footer .footer-email { margin: 0 0 10px !important; font-size: 0.92rem !important; font-weight: 450; }
.site-footer.mg-footer .footer-email a { color: var(--ink-2); }
.site-footer.mg-footer .footer-copy { color: var(--ink-3); }
.site-footer.mg-footer .footer-compare, .site-footer.mg-footer .footer-meta { margin-top: 0; text-align: left; }
.site-footer.mg-footer .mg-wordmark { margin: 60px 0 -0.18em; font-size: clamp(4rem, 17.5vw, 17rem); }
/* Pages whose index stays hidden (fewer than three sections) use one column. */
.pg-body:has(> .pg-toc[hidden]) { grid-template-columns: minmax(0, 1fr); }
.pg-body:has(> .pg-toc[hidden]) .legal-inner { max-width: 1040px; margin-inline: auto; }

/* ---------- Responsive ---------- */

@media (max-width: 1080px) {
  .mg-nav { display: none; }
  .mg-header-inner { justify-content: space-between; }
  .mg-actions { margin-left: auto; }
  .mg-menu { display: grid; }
  .mg-hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .mg-hero { min-height: 0; }
  .mg-hero-copy { text-align: center; }
  .mg-hero-copy .lede, .mg-hero-copy .mg-pill { margin-inline: auto; }
  .h1-brand { margin-inline: auto; }
  .hero-actions, .mg-formats { justify-content: center; }
  .mg-studio { grid-template-columns: 1fr; }
  .st-tabs { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 8px; padding-bottom: 4px; scrollbar-width: none; }
  .st-tabs::-webkit-scrollbar { display: none; }
  .st-tab { flex: none; width: auto; padding: 10px 16px 10px 10px; border-radius: 999px; scroll-snap-align: start; box-shadow: 0 0 0 1px var(--line) inset; }
  .st-tab[aria-selected='true'] { background: rgba(255, 255, 255, 0.08); box-shadow: 0 0 0 1px var(--line-2) inset; }
  .st-tab-text small, .st-tab-pill { display: none; }
  .st-tab-icon { width: 34px; height: 34px; border-radius: 50%; }
  .mg-footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .mg-footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  body { font-size: 16px; }
  .wrap { width: min(var(--max), calc(100% - 36px)); }
  .mg-hide-sm { display: none !important; }
  .mg-split-head, .mg-how-grid, .mg-who-grid, .mg-faq-grid { grid-template-columns: 1fr; gap: 24px; }
  .mg-how-side, .mg-faq-side { position: static; }
  .mg-rail { display: none; }
  .mg-problem { height: 210vh; }
  .mg-problem-grid { grid-template-columns: 1fr; gap: 18px; align-content: center; height: 100%; padding-top: 70px; }
  .mg-problem .mg-h2 { font-size: clamp(1.7rem, 7vw, 2.4rem); }
  .mg-ba { margin-top: 14px; }
  .mg-ba p { font-size: 0.98rem; }
  .mg-scroll-hint { margin-top: 12px; }
  .mg-problem-stage { height: 44svh; }
  .mg-bento { grid-template-columns: 1fr; }
  .pg-score-body { grid-template-columns: 1fr; }
  .mx-phone { border-radius: 26px; padding: 6px; }
  .mx-panel { grid-template-columns: 1fr; }
  .mx-side { position: static; order: -1; padding: 18px; }
  .mx-detail-title { font-size: 1.6rem; margin-bottom: 10px; }
  .mx-detail-order { margin: 10px 0 14px; }
  .mx-app { height: 560px; }
  .mg-principle { min-height: 420px; }
  .mg-footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .mg-header-inner { padding-left: 10px; }
  .mg-actions .btn-sm { padding: 0 14px; }
  .mg-actions .lang { display: none; }
  .mg-hero { padding-top: calc(var(--header) + 40px); }
  .mg-h1 { font-size: clamp(2.5rem, 11.5vw, 3.4rem); }
  .h1-b { white-space: normal; }
  .hero-actions .btn { width: 100%; }
  .mg-device-wrap { padding: 10px 0 0; }
  .mg-device { width: 260px; height: 530px; border-radius: 46px; }
  .mg-device-screen { border-radius: 36px; }
  .dv-ring { width: 140px; height: 140px; }
  .mg-float-score { left: -10px; top: 48%; }
  .mg-float-streak { right: -10px; top: 4%; }
  .mg-float-card { right: -10px; bottom: 8%; max-width: 150px; }
  .mg-stage-tab { min-width: 0; padding: 8px 12px 10px; }
  .st-opts { grid-template-columns: 1fr; }
  .st-stage { min-height: 0; }
  .st-window-bar .mg-demo-tag { display: none; }
  .session-board { grid-template-columns: 1fr; justify-items: center; }
  .session-main { width: 100%; }
  .session-times { display: grid; width: 100%; }
  .session-times button { min-width: 0; }
  .pg-arena { grid-template-columns: 1fr auto 1fr; gap: 8px; }
  .pg-player { padding: 14px 8px; }
  .pg-vs { width: 44px; height: 44px; }
  .st-bars li { grid-template-columns: 96px 1fr; }
  .mg-sheet-actions { grid-template-columns: 1fr; }
  .mg-footer-grid { grid-template-columns: 1fr; }
  .mg-sheets { width: 58%; right: 4%; }
}

@media (min-width: 861px) {
  .install-bar { display: none; }
}

@media (hover: none) {
  .mg-glass:hover { --glow: 0; }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; transition-delay: 0s !important; }
  .js [data-reveal] { opacity: 1 !important; transform: none !important; filter: none !important; clip-path: none !important; }
  .mg-marquee-track { animation: none !important; flex-wrap: wrap; justify-content: center; }
  .mg-marquee-track > :nth-child(n + 25) { display: none; }
  .mg-problem { height: auto; }
  .mg-scene-sticky { position: relative; height: auto; padding: 96px 0; }
  .mg-device { transform: rotateY(-8deg); }
  .mg-float { animation: none; }
}

/* ---------- Feature anchors (/#tutor, /#quizzes, ...) ---------- */
.st-anchors { position: relative; height: 0; }
.st-anchor { position: absolute; top: -24px; left: 0; width: 1px; height: 1px; }
.footer-sub { padding-left: 12px; font-size: 0.92em; }

/* ---------- Plans and pricing ---------- */
.pg-body.is-full { grid-template-columns: minmax(0, 1fr); }
.mg-page-pricing .legal-wide .legal-inner { width: min(1200px, calc(100% - 32px)); }
.pl { margin-top: 8px; }
.pl-switch { display: inline-flex; gap: 4px; padding: 4px; margin: 0 auto 28px; border-radius: 999px; background: rgba(255, 255, 255, 0.04); box-shadow: 0 0 0 1px var(--line) inset; }
.pl { text-align: center; }
.pl-switch button { display: inline-flex; align-items: center; gap: 8px; padding: 9px 18px; border: 0; border-radius: 999px; background: transparent; color: var(--ink-2); font: inherit; font-size: 0.9rem; font-weight: 600; cursor: pointer; transition: color 0.2s, background 0.2s; }
.pl-switch button[aria-checked="true"] { color: var(--ink); background: rgba(59, 130, 246, 0.22); box-shadow: 0 0 0 1px rgba(91, 155, 255, 0.45) inset; }
.pl-save { padding: 2px 8px; border-radius: 999px; background: rgba(52, 211, 153, 0.16); color: var(--good); font-size: 0.72rem; font-weight: 700; }
html:not(.js) .pl-switch { display: none; }
.pl-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; text-align: left; }
.pl-card { position: relative; display: flex; flex-direction: column; gap: 10px; padding: 26px 20px 22px; }
.pl-card.is-featured { box-shadow: 0 0 0 1.5px rgba(91, 155, 255, 0.7) inset, 0 24px 60px -30px rgba(59, 130, 246, 0.7); }
.pl-badge { position: absolute; top: -12px; left: 20px; margin: 0 !important; padding: 4px 10px; border-radius: 999px; background: var(--blue); color: #fff !important; font-family: var(--mono); font-size: 0.66rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
.legal .pl-card h3 { margin: 0; font-family: var(--display); font-size: 1.35rem; letter-spacing: -0.02em; }
.legal .pl-tag { margin: 0; min-height: 2.8em; font-size: 0.88rem; }
.legal .pl-price { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px; margin: 6px 0 0; color: var(--ink); }
.pl-price b { font-family: var(--display); font-size: 2rem; font-weight: 700; letter-spacing: -0.03em; }
.pl-price small { color: var(--ink-3); font-size: 0.82rem; }
.pl-price .pl-year, .pl-price .pl-month { display: inline-flex; align-items: baseline; gap: 4px; }
.legal .pl-bill { min-height: 3.2em; margin: 0; color: var(--ink-3); font-size: 0.78rem; line-height: 1.45; }
.pl-bill em { font-style: normal; color: var(--good); }
[data-interval="year"] .pl-month, [data-interval="month"] .pl-year { display: none !important; }
.pl-facts { display: grid; gap: 9px; margin: 6px 0 14px; padding: 14px 0 0; border-top: 1px solid var(--line); list-style: none; flex: 1; }
.pl-facts li { display: grid; grid-template-columns: 16px 1fr; gap: 8px; color: var(--ink-2); font-size: 0.85rem; line-height: 1.4; }
.pl-facts svg { width: 16px; height: 16px; margin-top: 2px; color: var(--good); }
.pl-card .btn { justify-content: center; width: 100%; }
.legal .pl-note { max-width: 46em; margin: 20px auto 0; color: var(--ink-3); font-size: 0.8rem; text-align: center; }
.mg-page-pricing .compare td, .mg-page-pricing .compare th { font-size: 0.86rem; }
@media (max-width: 1180px) { .pl-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 760px) { .pl-grid { grid-template-columns: minmax(0, 1fr); } .legal .pl-tag, .legal .pl-bill { min-height: 0; } }
.mg-nav a { white-space: nowrap; }
@media (max-width: 1320px) { .mg-nav a { padding: 8px 10px; font-size: 0.86rem; } }
@media (max-width: 1200px) { .mg-nav a[data-nav="faq"] { display: none; } }
.pl-card.is-featured { padding-top: 34px; }
.pl-badge { white-space: nowrap; line-height: 1.2; font-size: 0.64rem !important; }
.legal .pl-facts { align-content: start; padding-left: 0; margin-left: 0; }
.pl-card .btn { padding-inline: 12px; white-space: nowrap; }

/* ---------- Install guide (/instalar/, /en/install/) and install dialog — markup in install.mjs ---------- */
.mg-page-install .pg-body .legal-wide .legal-inner { max-width: 1040px; width: 100%; margin-inline: auto; }
.mg-page-install .ig--page { margin-top: 0; }
.ig,
.ig-dialog {
  --ig-ink: var(--ink);
  --ig-soft: var(--ink-2);
  --ig-muted: var(--ink-3);
  --ig-line: var(--line);
  --ig-line-strong: var(--line-2);
  --ig-blue: var(--blue);
  --ig-tap: var(--marker);
  --ig-ok: var(--cyan);
  --ig-card: var(--bg-2);
}
.ig [hidden],
.ig-dialog [hidden] {
  display: none !important;
}
.ig svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.ig svg circle {
  fill: currentColor;
  stroke: none;
}

/* ---------- Tabs ---------- */
.ig {
  margin: 32px 0 48px;
  color: var(--ig-ink);
}
.ig-tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  margin: 0 0 22px;
  border: 1px solid var(--ig-line-strong);
  border-radius: 999px;
  background: #0b0e14;
  width: max-content;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}
.ig-tabs [role='tab'] {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ig-soft);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 650;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.ig-tabs [role='tab'] svg {
  width: 18px;
  height: 18px;
  flex: none;
}
.ig-tabs [role='tab'] svg path {
  stroke-width: 1.6;
}
.ig-tabs [role='tab'][aria-selected='true'] {
  background: var(--ig-blue);
  color: #fff;
}
.ig-tabs [role='tab']:not([aria-selected='true']):hover {
  color: var(--ig-ink);
  background: #1a2332;
}
.ig-here {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
}
[aria-selected='false'] .ig-here {
  background: rgba(59, 130, 246, 0.18);
  color: #93c5fd;
}

/* ---------- Context hint (in-app browser, Chrome on iPhone…) ---------- */
.ig-hint {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 0 0 18px;
  padding: 12px 14px;
  border: 1px solid rgba(243, 210, 90, 0.45);
  border-radius: 14px;
  background: rgba(243, 210, 90, 0.08);
}
.ig-hint p {
  flex: 1 1 220px;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.45;
}
.ig-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--ig-line-strong);
  border-radius: 12px;
  background: #0b0e14;
  color: var(--ig-ink);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 650;
  cursor: pointer;
}
.ig-copy svg {
  width: 16px;
  height: 16px;
}

/* ---------- Panel layout ---------- */
.ig-panel {
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  gap: 44px;
  align-items: center;
}
.ig-stage {
  display: grid;
  place-items: center;
  padding: 26px 0;
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% 38%, rgba(59, 130, 246, 0.22), transparent 62%),
    #0f141c;
  border: 1px solid var(--ig-line);
}
.ig-flow {
  min-width: 0;
}
.ig-go {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 16px;
}
.ig-go-bottom {
  justify-content: center;
  padding-top: 6px;
}
.ig-go-btn {
  gap: 10px;
  padding-left: 14px;
}
.ig-go-check {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #fff;
  color: var(--blue);
  flex: none;
}
.ig-go-check svg {
  width: 16px;
  height: 16px;
  stroke-width: 3;
}
.ig-go-note {
  color: var(--ig-soft);
  font-size: 0.92rem;
}
.ig-panel[data-ig-panel='desktop'] {
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
}
.ig-panel[data-ig-panel='desktop'] .ig-stage {
  padding: 26px 22px;
}

/* ---------- Steps ---------- */
.ig-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
  display: grid;
  gap: 6px;
}
.ig-steps li {
  position: relative;
  padding: 10px 14px 12px;
  border-radius: 16px;
  border: 1px solid transparent;
  transition: background 0.25s, border-color 0.25s;
}
.ig-steps li.is-now {
  background: #121820;
  border-color: var(--ig-line-strong);
}
.ig-steps button {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: var(--ig-ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.ig-num {
  position: relative;
  display: grid;
  place-items: center;
  flex: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1.5px solid var(--ig-line-strong);
  color: var(--ig-soft);
  font-size: 0.85rem;
  font-weight: 750;
  transition: background 0.25s, border-color 0.25s, color 0.25s;
}
.ig-num svg {
  position: absolute;
  width: 16px;
  height: 16px;
  opacity: 0;
  stroke-width: 2.4;
}
.is-now .ig-num {
  background: var(--ig-blue);
  border-color: var(--ig-blue);
  color: #fff;
}
.is-done .ig-num {
  border-color: rgba(34, 211, 238, 0.5);
  color: var(--ig-ok);
}
.is-done .ig-num span {
  opacity: 0;
}
.is-done .ig-num svg {
  opacity: 1;
}
.ig-step-title {
  font-size: 1.02rem;
  font-weight: 720;
  letter-spacing: -0.015em;
}
.ig-steps p {
  margin: 4px 0 0 42px;
  color: var(--ig-muted);
  font-size: 0.93rem;
  line-height: 1.5;
  transition: color 0.25s;
}
.ig-steps .is-now p {
  color: var(--ig-soft);
}
.ig-tip {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--ig-tap);
  border-radius: 0 12px 12px 0;
  background: rgba(243, 210, 90, 0.06);
  color: var(--ig-soft);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ---------- Device frames ---------- */
.ig-device {
  font-size: 15px;
  position: relative;
}
.ig-device-ios,
.ig-device-android {
  width: 15em;
  height: 31em;
  padding: 0.42em;
  border-radius: 2.6em;
  background: #05070b;
  box-shadow:
    0 0 0 0.12em #334155,
    0 1.6em 3em rgba(0, 0, 0, 0.55);
}
.ig-device-android {
  border-radius: 2em;
}
.ig-device-desktop {
  width: min(26em, 100%);
  aspect-ratio: 16 / 11;
  padding: 0;
  border-radius: 0.8em;
  box-shadow:
    0 0 0 0.1em #334155,
    0 1.6em 3em rgba(0, 0, 0, 0.55);
}
.ig-screen {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 2.2em;
  background: #0d1219;
  color: #e2e8f0;
  font-family: var(--sans, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif);
  line-height: 1.2;
  isolation: isolate;
}
.ig-android {
  border-radius: 1.65em;
}
.ig-desktop {
  border-radius: 0.8em;
  background: #0b0e14;
}
.ig-screen svg {
  width: 1.25em;
  height: 1.25em;
}
.ig-logo {
  display: block;
  flex: none;
  background: url(/logo-mark.png) center / cover no-repeat;
}

/* status bar */
.ig-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 2.4em;
  padding: 0 1.5em 0 1.7em;
  font-size: 0.72em;
  font-weight: 700;
}
.ig-island {
  width: 5.4em;
  height: 1.55em;
  border-radius: 1em;
  background: #000;
}
.ig-cam {
  width: 0.9em;
  height: 0.9em;
  border-radius: 50%;
  background: #000;
  box-shadow: 0 0 0 0.15em #1e293b;
}
.ig-bat {
  width: 1.7em;
  height: 0.8em;
  border-radius: 0.25em;
  border: 0.12em solid #e2e8f0;
  background: linear-gradient(90deg, #e2e8f0 70%, transparent 70%);
}

/* fake web page */
.ig-web {
  padding: 0.6em 0.9em;
}
.ig-web-head {
  display: flex;
  align-items: center;
  gap: 0.4em;
  font-size: 0.72em;
  font-weight: 750;
  margin-bottom: 1em;
}
.ig-web-head .ig-logo {
  width: 1.5em;
  height: 1.5em;
  border-radius: 0.4em;
}
.ig-web i,
.ig-web b {
  display: block;
  height: 0.5em;
  border-radius: 0.3em;
  background: #1e293b;
  margin: 0 0 0.45em;
}
.ig-web .short {
  width: 60%;
}
.ig-web-hero i:first-child {
  height: 0.95em;
  width: 85%;
  background: #334155;
}
.ig-web-hero {
  margin-bottom: 1em;
}
.ig-web-card {
  padding: 0.75em;
  margin-bottom: 0.6em;
  border-radius: 0.8em;
  background: #121820;
  border: 1px solid #1e293b;
}
.ig-web-card b {
  width: 40%;
  height: 0.6em;
  background: #3b82f6;
  opacity: 0.8;
}

/* pill (address bar) */
.ig-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  min-width: 0;
  height: 2.3em;
  padding: 0 0.8em;
  border-radius: 0.8em;
  background: #1e293b;
}
.ig-pill span {
  font-size: 0.72em;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* iOS Safari bottom toolbar */
.ig-ios-bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.6em 0.8em 1.4em;
  background: rgba(23, 30, 41, 0.96);
  border-top: 1px solid #1e293b;
  z-index: 2;
}
.ig-ios-icons {
  display: flex;
  justify-content: space-between;
  padding: 0.6em 0.5em 0;
  color: #60a5fa;
}
.ig-ios-icons span {
  display: grid;
  place-items: center;
  width: 2.1em;
  height: 2.1em;
  border-radius: 0.6em;
}

/* iOS share sheet */
.ig-sheet {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 4;
  padding: 0.9em 0.8em 1.4em;
  border-radius: 1.4em 1.4em 0 0;
  background: #1a2230;
  box-shadow: 0 0 0 40em rgba(0, 0, 0, 0);
  transform: translateY(105%);
  transition: transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.45s;
}
.ig-sheet-head,
.ig-add-row {
  display: flex;
  align-items: center;
  gap: 0.6em;
}
.ig-sheet-head .ig-logo,
.ig-add-row .ig-logo {
  width: 2.2em;
  height: 2.2em;
  border-radius: 0.55em;
}
.ig-sheet-head b,
.ig-add-row b {
  display: block;
  font-size: 0.78em;
}
.ig-sheet-head span,
.ig-add-row span {
  display: block;
  font-size: 0.64em;
  color: #94a3b8;
}
.ig-sheet-people {
  display: flex;
  gap: 0.7em;
  margin: 0.9em 0;
}
.ig-sheet-people i {
  width: 2.4em;
  height: 2.4em;
  border-radius: 50%;
  background: linear-gradient(135deg, #334155, #1e293b);
}
.ig-sheet ul,
.ig-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.ig-sheet li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.8em;
  height: 2.5em;
  background: #232d3d;
  border-bottom: 1px solid #1a2230;
}
.ig-sheet li:first-child {
  border-radius: 0.8em 0.8em 0 0;
}
.ig-sheet li:last-child {
  border-radius: 0 0 0.8em 0.8em;
  border-bottom: 0;
}
.ig-sheet li span {
  font-size: 0.7em;
  font-weight: 600;
}
.ig-sheet li svg {
  width: 1.1em;
  height: 1.1em;
}

/* "Add" screens */
.ig-add {
  position: absolute;
  z-index: 5;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s, transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.ig-add-ios {
  inset: 2.6em 0 0;
  padding: 0.9em;
  border-radius: 1.2em 1.2em 0 0;
  background: #1a2230;
  transform: translateY(100%);
}
.ig-add-top {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.3em;
  margin-bottom: 1.2em;
}
.ig-add-top span,
.ig-add-top b {
  font-size: 0.66em;
}
.ig-add-top b {
  text-align: center;
}
.ig-add-top span {
  color: #60a5fa;
  font-weight: 600;
  padding: 0.35em 0.5em;
  border-radius: 0.6em;
}
.ig-add-top .ig-t {
  font-weight: 800;
}
.ig-add-ios .ig-add-row {
  padding: 0.7em;
  border-radius: 0.8em;
  background: #232d3d;
}
.ig-add-ios .ig-add-row .ig-logo {
  width: 2.8em;
  height: 2.8em;
  border-radius: 0.7em;
}
.ig-add-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.7em;
  padding: 0 0.8em;
  height: 2.5em;
  border-radius: 0.8em;
  background: #232d3d;
}
.ig-add-toggle span {
  font-size: 0.68em;
  font-weight: 600;
}
.ig-add-toggle i {
  position: relative;
  width: 2.2em;
  height: 1.3em;
  border-radius: 1em;
  background: #22c55e;
}
.ig-add-toggle i::after {
  content: '';
  position: absolute;
  top: 0.15em;
  right: 0.15em;
  width: 1em;
  height: 1em;
  border-radius: 50%;
  background: #fff;
}

/* Android Chrome */
.ig-a-bar {
  display: flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.3em 0.6em 0.6em;
  border-bottom: 1px solid #1e293b;
}
.ig-a-bar .ig-pill {
  flex: 1;
  justify-content: flex-start;
  border-radius: 1.2em;
}
.ig-a-tabs {
  display: grid;
  place-items: center;
  width: 1.3em;
  height: 1.3em;
  border: 0.12em solid #e2e8f0;
  border-radius: 0.3em;
  font-size: 0.72em;
  font-weight: 700;
}
.ig-a-kebab {
  display: grid;
  place-items: center;
  width: 2.1em;
  height: 2.1em;
  border-radius: 50%;
}
.ig-menu {
  position: absolute;
  top: 2.8em;
  right: 0.5em;
  z-index: 4;
  width: 10.4em;
  padding: 0.4em 0;
  border-radius: 0.9em;
  background: #232d3d;
  box-shadow: 0 0.8em 2em rgba(0, 0, 0, 0.5);
  opacity: 0;
  transform: scale(0.85);
  transform-origin: top right;
  transition: opacity 0.3s, transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.ig-menu li {
  display: flex;
  align-items: center;
  gap: 0.5em;
  height: 2.3em;
  margin: 0 0.3em;
  padding: 0 0.7em;
  border-radius: 0.6em;
}
.ig-menu li span {
  font-size: 0.7em;
  font-weight: 550;
}
.ig-menu li svg {
  width: 1.1em;
  height: 1.1em;
}
.ig-add-android {
  left: 1.2em;
  right: 1.2em;
  top: 50%;
  padding: 1.2em 1em 0.9em;
  border-radius: 1.4em;
  background: #232d3d;
  text-align: center;
  transform: translateY(-40%) scale(0.92);
}
.ig-add-android .ig-logo {
  width: 2.8em;
  height: 2.8em;
  margin: 0 auto 0.6em;
  border-radius: 0.8em;
}
.ig-add-android > b {
  display: block;
  font-size: 0.85em;
  margin-bottom: 0.5em;
}
.ig-add-android p {
  margin: 0 0 1em;
  font-size: 0.7em;
  line-height: 1.4;
}
.ig-add-android p span {
  color: #94a3b8;
}
.ig-add-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.4em;
}
.ig-add-actions span {
  padding: 0.55em 0.9em;
  border-radius: 1.2em;
  font-size: 0.68em;
  font-weight: 700;
  color: #93c5fd;
}
.ig-add-actions .ig-t {
  background: #3b82f6;
  color: #fff;
}
.ig-a-nav {
  position: absolute;
  bottom: 0.5em;
  left: 0;
  right: 0;
  display: grid;
  place-items: center;
  z-index: 7;
}
.ig-a-nav i {
  width: 6em;
  height: 0.28em;
  border-radius: 1em;
  background: #94a3b8;
}

/* Home screen (final step) */
.ig-home {
  position: absolute;
  inset: 0;
  z-index: 6;
  padding: 3.4em 1.2em 1em;
  background:
    radial-gradient(circle at 20% 15%, rgba(59, 130, 246, 0.55), transparent 55%),
    radial-gradient(circle at 85% 80%, rgba(34, 211, 238, 0.35), transparent 55%),
    #0b1424;
  opacity: 0;
  transition: opacity 0.5s;
}
.ig-home-grid {
  display: grid;
  grid-template-columns: repeat(4, 2.4em);
  justify-content: space-between;
  gap: 1.15em 0;
  justify-items: center;
}
.ig-app {
  position: relative;
  display: block;
  width: 2.4em;
  height: 2.4em;
  border-radius: 0.65em;
  background: rgba(255, 255, 255, 0.14);
}
.ig-app-0 { background: linear-gradient(135deg, #f97316, #fb923c); }
.ig-app-1 { background: linear-gradient(135deg, #22c55e, #4ade80); }
.ig-app-2 { background: linear-gradient(135deg, #a855f7, #c084fc); }
.ig-app-3 { background: linear-gradient(135deg, #0ea5e9, #38bdf8); }
.ig-app-4 { background: linear-gradient(135deg, #f43f5e, #fb7185); }
.ig-app-5 { background: linear-gradient(135deg, #eab308, #facc15); }
.ig-app-mg {
  background: none;
}
.ig-app-mg .ig-logo {
  width: 100%;
  height: 100%;
  border-radius: 0.75em;
  box-shadow: 0 0 0 0.15em var(--ig-tap), 0 0 1.4em rgba(243, 210, 90, 0.55);
}
.ig-app-mg em {
  position: absolute;
  left: 50%;
  top: calc(100% + 0.3em);
  transform: translateX(-50%);
  font-size: 0.55em;
  font-style: normal;
  font-weight: 700;
  white-space: nowrap;
}
.ig-home-dock {
  position: absolute;
  left: 0.8em;
  right: 0.8em;
  bottom: 1.4em;
  display: flex;
  justify-content: space-around;
  padding: 0.7em;
  border-radius: 1.5em;
  background: rgba(255, 255, 255, 0.12);
}

/* Desktop browser */
.ig-d-chrome {
  display: flex;
  align-items: flex-end;
  gap: 1em;
  height: 2.2em;
  padding: 0 0.8em;
  background: #05070b;
}
.ig-d-dots {
  display: flex;
  gap: 0.35em;
  align-self: center;
}
.ig-d-dots i,
.ig-d-win-ctl i {
  width: 0.6em;
  height: 0.6em;
  border-radius: 50%;
  background: #f43f5e;
}
.ig-d-dots i:nth-child(2) { background: #eab308; }
.ig-d-dots i:nth-child(3) { background: #22c55e; }
.ig-d-tab {
  display: flex;
  align-items: center;
  gap: 0.4em;
  height: 1.7em;
  padding: 0 1em;
  border-radius: 0.5em 0.5em 0 0;
  background: #1a2332;
  font-size: 0.64em;
  font-weight: 650;
}
.ig-d-tab .ig-logo {
  width: 1.2em;
  height: 1.2em;
  border-radius: 0.25em;
}
.ig-d-bar {
  display: flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.4em 0.6em;
  background: #1a2332;
  border-bottom: 1px solid #0b0e14;
}
.ig-d-bar .ig-pill {
  flex: 1;
  justify-content: space-between;
  height: 1.9em;
  border-radius: 1em;
  background: #0b0e14;
  padding-right: 0.25em;
}
.ig-d-install {
  display: grid;
  place-items: center;
  width: 1.6em;
  height: 1.6em;
  border-radius: 50%;
}
.ig-d-install svg {
  width: 1.05em;
  height: 1.05em;
}
.ig-desktop .ig-web {
  padding: 0.9em 1.4em;
}
.ig-desktop .ig-web-card {
  display: inline-block;
  width: calc(50% - 0.4em);
  margin-right: 0.4em;
  vertical-align: top;
}
.ig-d-pop {
  position: absolute;
  top: 4.4em;
  right: 0.8em;
  z-index: 4;
  width: 12em;
  padding: 0.9em;
  border-radius: 0.8em;
  background: #232d3d;
  box-shadow: 0 0.8em 2em rgba(0, 0, 0, 0.55);
  opacity: 0;
  transform: translateY(-0.6em);
  transition: opacity 0.3s, transform 0.35s;
}
.ig-d-pop > b {
  display: block;
  font-size: 0.74em;
  margin-bottom: 0.7em;
}
.ig-d-pop .ig-add-row {
  margin-bottom: 0.8em;
}
.ig-d-pop .ig-add-row .ig-logo {
  width: 1.8em;
  height: 1.8em;
}
.ig-d-pop .ig-add-actions {
  justify-content: flex-start;
}
.ig-d-win {
  position: absolute;
  inset: 1.4em 2em 1.4em;
  z-index: 5;
  overflow: hidden;
  border-radius: 0.6em;
  background: #0d1219;
  box-shadow:
    0 0 0 0.08em #334155,
    0 1em 2.4em rgba(0, 0, 0, 0.6);
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.4s, transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.ig-d-win-bar {
  display: flex;
  align-items: center;
  gap: 0.4em;
  height: 1.6em;
  padding: 0 0.6em;
  background: #1a2332;
}
.ig-d-win-bar span {
  font-size: 0.6em;
  font-weight: 700;
}
.ig-d-win-bar .ig-logo {
  width: 1em;
  height: 1em;
  border-radius: 0.2em;
}
.ig-d-win-ctl {
  display: flex;
  gap: 0.3em;
  margin-left: auto;
}
.ig-d-win-ctl i {
  background: #475569;
}

/* ---------- States ---------- */
.ig-screen[data-state='3'] .ig-sheet {
  transform: translateY(0);
  box-shadow: 0 0 0 40em rgba(0, 0, 0, 0.45);
}
.ig-screen[data-state='4'] .ig-add {
  opacity: 1;
}
.ig-screen[data-state='4'] .ig-add-ios {
  transform: translateY(0);
}
.ig-screen[data-state='4'] .ig-add-android {
  transform: translateY(-50%) scale(1);
  box-shadow: 0 0 0 40em rgba(0, 0, 0, 0.5);
}
.ig-screen[data-state='3'] .ig-menu {
  opacity: 1;
  transform: scale(1);
}
.ig-screen[data-state='3'] .ig-d-pop {
  opacity: 1;
  transform: none;
}
.ig-screen[data-state='4'] .ig-d-win {
  opacity: 1;
  transform: none;
}
.ig-screen[data-state='5'] .ig-home {
  opacity: 1;
}
.ig-screen[data-state='5'] .ig-app-mg {
  animation: ig-pop 0.6s cubic-bezier(0.2, 1.6, 0.4, 1) both;
}

/* "Tap here" ring */
.ig-t {
  position: relative;
  transition: box-shadow 0.25s, background 0.25s;
}
.ig-screen[data-state='1'] .ig-t-1,
.ig-screen[data-state='2'] .ig-t-2,
.ig-screen[data-state='3'] .ig-t-3,
.ig-screen[data-state='4'] .ig-t-4 {
  z-index: 1;
  box-shadow:
    inset 0 0 0 0.13em var(--ig-tap),
    0 0 0 0.3em rgba(243, 210, 90, 0.22);
  animation: ig-ring 1.5s ease-in-out infinite;
}
.ig-screen[data-state='3'] .ig-sheet .ig-t-3 {
  background: #2d3a4f;
}
.ig-screen[data-state='3'] .ig-menu .ig-t-3 {
  background: #2d3a4f;
  color: #fff;
}

@keyframes ig-ring {
  50% {
    box-shadow:
      inset 0 0 0 0.13em var(--ig-tap),
      0 0 0 0.55em rgba(243, 210, 90, 0.08);
  }
}
@keyframes ig-pop {
  from {
    transform: scale(0.3);
    opacity: 0;
  }
}
@keyframes ig-up {
  from {
    transform: translateY(40px);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ig *,
  .ig-dialog * {
    animation: none !important;
    transition: none !important;
  }
}

/* ---------- Dialog ---------- */
html.ig-lock {
  overflow: hidden;
}
.ig-dialog {
  position: fixed;
  inset: 0;
  width: 100%;
  max-width: none;
  height: 100%;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ig-ink);
  overscroll-behavior: contain;
}
.ig-dialog:not([open]) {
  display: none;
}
.ig-dialog[open] {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 80;
}
.ig-dialog::backdrop {
  background: rgba(5, 7, 11, 0.72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.ig-sheet-wrap {
  width: min(880px, 100%);
  max-height: 94vh;
  max-height: 94dvh;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 20px 18px calc(18px + env(safe-area-inset-bottom));
  border: 1px solid var(--ig-line-strong);
  border-bottom: 0;
  border-radius: 26px 26px 0 0;
  background: var(--bg-1);
  box-shadow: 0 -20px 60px rgba(0, 0, 0, 0.5);
  animation: ig-up 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.ig-dialog-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}
.ig-dialog-head .ig-logo {
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: 22%;
}
.ig-dialog-head div {
  flex: 1;
  min-width: 0;
}
.ig-dialog-head h2 {
  margin: 0;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.ig-dialog-head p {
  margin: 4px 0 0;
  color: var(--ig-soft);
  font-size: 0.92rem;
  line-height: 1.4;
}
.ig-x {
  display: grid;
  place-items: center;
  flex: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--ig-line-strong);
  border-radius: 50%;
  background: transparent;
  color: var(--ig-ink);
  cursor: pointer;
}
.ig-x svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}
.ig-dialog .ig {
  margin: 0;
}
.ig-dialog .ig-tabs {
  margin-bottom: 16px;
}
.ig-dialog .ig-panel {
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 28px;
}
.ig-dialog .ig-panel[data-ig-panel='desktop'] {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
}
.ig-dialog .ig-stage {
  padding: 18px 0;
}
.ig-dialog .ig-device {
  font-size: 13px;
}
.ig-dialog .ig-steps li {
  padding: 8px 12px 10px;
}
.ig-dialog .ig-steps p {
  font-size: 0.88rem;
}
.ig-dialog .ig-tip {
  font-size: 0.85rem;
}
.ig-dialog-foot {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--ig-line);
}
.ig-dialog-foot .btn {
  width: auto;
}
.ig-more {
  font-weight: 650;
  text-decoration: none;
}

@media (min-width: 760px) {
  .ig-dialog[open] {
    align-items: center;
    padding: 24px;
  }
  .ig-sheet-wrap {
    padding: 26px 28px 24px;
    border-bottom: 1px solid var(--ig-line-strong);
    border-radius: 26px;
  }
}

@media (max-width: 759px) {
  .ig-panel,
  .ig-dialog .ig-panel {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .ig-tabs {
    width: 100%;
  }
  .ig-tabs [role='tab'] {
    flex: 1 0 auto;
    justify-content: center;
    padding: 0 12px;
  }
  .ig-dialog .ig-stage {
    padding: 14px 0;
  }
  .ig-dialog .ig-device {
    font-size: 10.5px;
  }
  .ig-dialog .ig-device-desktop {
    font-size: 11px;
  }
  .ig-go .ig-go-btn {
    flex: 1;
    justify-content: center;
  }
  .ig-go-note {
    width: 100%;
    text-align: center;
  }
  .ig-panel[data-ig-panel='desktop'],
  .ig-dialog .ig-panel[data-ig-panel='desktop'] {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 420px) {
  .ig-here {
    display: none;
  }
  .ig-tabs [role='tab'] svg {
    display: none;
  }
}

/* ---------- Header: Funcionalidades dropdown, Praticar link (chrome.mjs) ---------- */

.mg-drop { position: relative; display: flex; align-items: center; }
.mg-drop > a[data-nav] { padding-right: 4px; }
.mg-drop-caret {
  position: relative; z-index: 1; display: inline-grid; place-items: center; width: 26px; height: 30px; margin-right: 4px;
  border: 0; border-radius: 999px; background: none; color: var(--ink-2); cursor: pointer; transition: color 0.2s, background 0.2s;
}
.mg-drop-caret svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform 0.3s var(--ease); }
.mg-drop-caret:hover, .mg-drop.is-open .mg-drop-caret { color: var(--ink); background: rgba(255, 255, 255, 0.06); }
.mg-drop.is-open .mg-drop-caret svg { transform: rotate(180deg); }
.mg-drop-caret:focus-visible { outline: 2px solid var(--blue-2); outline-offset: 2px; }
.mg-drop-menu {
  position: absolute; top: calc(100% + 10px); left: 0; z-index: 120; display: grid; min-width: 230px; padding: 8px;
  border-radius: 18px; background: rgba(12, 15, 22, 0.97); border: 1px solid var(--line-2);
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.9); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
}
.mg-drop-menu::before { content: ''; position: absolute; left: 0; right: 0; top: -12px; height: 12px; }
.mg-drop-menu:not([hidden]) { animation: mg-drop 0.3s var(--ease); }
.mg-nav .mg-drop-menu a { display: block; padding: 10px 12px; border-radius: 12px; color: var(--ink-2); font-size: 0.92rem; }
.mg-nav .mg-drop-menu a:hover, .mg-nav .mg-drop-menu a:focus-visible { color: var(--ink); background: rgba(255, 255, 255, 0.06); }
.mg-nav a.mg-nav-hl { color: var(--marker); }
.mg-nav a.mg-nav-hl:hover { color: #fff3b0; }
.mg-sheet nav a.mg-sheet-sub { padding: 9px 10px 9px 26px; font-family: var(--sans); font-size: 1rem; font-weight: 500; color: var(--ink-2); letter-spacing: 0; }
.mg-sheet nav a.mg-nav-hl { color: var(--marker); }

/* ---------- Homepage pop-up: free practice (practice-promo.mjs) ---------- */

.pp-dialog { width: min(520px, calc(100% - 28px)); max-height: calc(100dvh - 28px); padding: 0; border: 0; border-radius: var(--radius-lg); background: transparent; color: var(--ink); overflow: visible; }
.pp-dialog::backdrop { background: rgba(3, 5, 9, 0.66); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.pp-dialog[open] { animation: pp-in 0.45s var(--ease-spring); }
@keyframes pp-in { from { opacity: 0; transform: translateY(18px) scale(0.97); } to { opacity: 1; transform: none; } }
.pp-card {
  position: relative; display: grid; gap: 14px; padding: 30px 26px 24px; border-radius: var(--radius-lg);
  background: radial-gradient(420px circle at 85% -10%, rgba(243, 210, 90, 0.16), transparent 60%), radial-gradient(500px circle at 0% 110%, rgba(59, 130, 246, 0.2), transparent 60%), var(--bg-1);
  border: 1px solid var(--line-2); box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.95);
}
.pp-kicker { margin: 0; display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--marker); }
.pp-card h2 { margin: 0; font-family: var(--display); font-size: clamp(1.6rem, 4.6vw, 2.1rem); line-height: 1.1; letter-spacing: -0.03em; padding-right: 30px; }
.pp-card p { margin: 0; color: var(--ink-2); }
.pp-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.pp-chip { padding: 8px 14px; border-radius: 999px; font-size: 0.88rem; color: var(--ink); text-decoration: none; background: rgba(255, 255, 255, 0.05); box-shadow: 0 0 0 1px var(--line-2) inset; transition: background 0.2s, box-shadow 0.2s; }
.pp-chip:hover, .pp-chip:focus-visible { background: rgba(91, 155, 255, 0.14); box-shadow: 0 0 0 1px var(--blue-2) inset; }
.pp-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.pp-x { position: absolute; top: 14px; right: 14px; display: grid; place-items: center; width: 38px; height: 38px; border: 0; border-radius: 999px; background: rgba(255, 255, 255, 0.06); color: var(--ink); cursor: pointer; }
.pp-x svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.pp-x:hover { background: rgba(255, 255, 255, 0.12); }
@media (max-width: 560px) {
  .pp-card { padding: 26px 18px 18px; }
  .pp-actions .btn { flex: 1 1 auto; }
}
@media (prefers-reduced-motion: reduce) { .pp-dialog[open], .mg-drop-menu:not([hidden]) { animation: none; } }