/* Prep Mentor landing. Tokens match the app (lib/core/theme/tokens.dart). */
/* Metric-matched fallback so text doesn't reflow when Inter arrives (no layout shift). */
@font-face {
  font-family: "Inter Fallback";
  src: local("Arial");
  size-adjust: 107.12%;
  ascent-override: 90.44%;
  descent-override: 22.52%;
  line-gap-override: 0%;
}
:root {
  --bg: #fbf8f4;
  --surface: #ffffff;
  --tint: #f6f1ea;
  --text: #0f1535;
  --muted: #555b74;
  --border: #ece5db;
  --primary: #4f46e5;
  --primary-fill: #4f46e5;
  --accent-text: #4338ca;
  --primary-strong: #4338ca;
  --primary-soft: #eef2ff;
  --success: #15803d;
  --danger: #dc2626;
  --warning: #b45309;
  --physics: #3b82f6;
  --chemistry: #f59e0b;
  --biology: #10b981;
  --rose: #e0445a;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 1px 2px rgba(15, 21, 53, .04), 0 18px 40px -22px rgba(15, 21, 53, .22);
  --font: "Inter", "Inter Fallback", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --hand: "Segoe Print", "Bradley Hand", "Caveat", cursive;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -0.02em; margin: 0; text-wrap: balance; }
p { margin: 0; }
.wrap { width: min(1200px, 100% - 32px); margin-inline: auto; }
.narrow { width: min(760px, 100% - 32px); }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.accent { color: var(--primary); }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--primary-fill); color: #fff; padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--primary) 60%, transparent); outline-offset: 2px; border-radius: 6px; }

/* Buttons: colour change only on hover, nothing appears or moves in. */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 18px; border-radius: 12px; font-weight: 600; font-size: 15px;
  text-decoration: none; border: 1px solid transparent; white-space: nowrap;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.btn--lg { height: 52px; padding: 0 22px; font-size: 16px; }
.btn--sm { height: 34px; padding: 0 12px; font-size: 13px; border-radius: 10px; }
.btn--primary { background: var(--primary-fill); color: #fff; }
.btn--primary:hover { background: var(--primary-strong); }
.btn--outline { border-color: var(--border); background: var(--surface); color: var(--text); }
.btn--outline:hover { border-color: color-mix(in srgb, var(--primary) 50%, var(--border)); }
.btn--ghost { color: var(--text); }
.btn--ghost:hover { background: color-mix(in srgb, var(--primary) 8%, transparent); }
.link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 600; text-decoration: none; margin-top: 20px; }
.link:hover { text-decoration: underline; text-underline-offset: 4px; }

.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--primary); }
.eyebrow--sm { font-size: 11px; }
.lede { color: var(--muted); font-size: 18px; max-width: 58ch; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: saturate(160%) blur(12px); border-bottom: 1px solid transparent; transition: border-color .2s ease; }
.nav.is-stuck { border-bottom-color: var(--border); }
.nav__inner { display: flex; align-items: center; gap: 24px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; text-decoration: none; font-size: 19px; letter-spacing: -0.01em; color: var(--text); white-space: nowrap; }
.brand__mark { width: 32px; height: 32px; border-radius: 10px; background: var(--primary-fill); color: #fff; display: grid; place-items: center; }
.brand__logo { width: 36px; height: 36px; flex: none; }
.nav__links { display: flex; gap: 28px; margin-left: 24px; }
.nav__links a { text-decoration: none; color: var(--muted); font-size: 15px; font-weight: 500; }
.nav__links a:hover { color: var(--text); }
.nav__cta { margin-left: auto; display: flex; gap: 8px; }
.menu { display: none; position: relative; }
.menu__btn { list-style: none; width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; cursor: pointer; color: var(--text); }
.menu__btn::-webkit-details-marker { display: none; }
.menu__btn:hover, .menu[open] .menu__btn { background: color-mix(in srgb, var(--primary) 8%, transparent); }
.menu__panel {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 200px; padding: 6px; display: grid;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow);
}
.menu__panel a { padding: 11px 12px; border-radius: 10px; text-decoration: none; color: var(--text); font-weight: 500; font-size: 15px; }
.menu__panel a:hover { background: var(--tint); }

/* Hero
   One layer of artwork (the full approved illustration, never cropped on desktop)
   and one layer of content. On wide screens the art is height-fitted and pinned
   to the right, so the owl, the quote and the sticky note always stay in view;
   its left edge dissolves into the cream page. Below 1280px the art drops under
   the copy as a full picture: copy, CTAs, stats, art, then benefits. */
.hero { position: relative; isolation: isolate; padding-bottom: 72px; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(26% 36% at 0% 84%, rgba(129, 120, 240, .16), transparent 70%),
    radial-gradient(18% 26% at 3% 34%, rgba(129, 120, 240, .07), transparent 70%);
}
.hero__stage { position: relative; }
.hero__inner { position: relative; z-index: 1; }
.hero__copy { max-width: 640px; padding: 40px 0 8px; }
.pill {
  display: inline-block; margin: 0 0 24px; padding: 7px 14px; border-radius: 999px;
  font-size: 13px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent-text); background: var(--primary-soft);
}
.hero h1 { font-size: clamp(40px, 4.3vw, 80px); font-weight: 800; letter-spacing: -0.035em; line-height: 1.03; margin: 0 0 24px; color: var(--text); }
.hero h1 .accent { color: var(--primary); }
/* Hand-drawn underline under "next." */
.swash { position: relative; white-space: nowrap; }
.swash::after {
  content: ""; position: absolute; left: 2%; right: -8%; bottom: -0.17em; height: .2em; pointer-events: none;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 16' preserveAspectRatio='none'%3E%3Cpath d='M3 11C48 5 120 3 197 7' fill='none' stroke='%23F5B53D' stroke-width='5' stroke-linecap='round'/%3E%3Cpath d='M30 13c40-3 90-4 140-2' fill='none' stroke='%23F5B53D' stroke-width='2.5' stroke-linecap='round' opacity='.7'/%3E%3C/svg%3E") center / 100% 100% no-repeat;
}
.hero .lede { font-size: clamp(17px, .5vw + 11px, 20px); line-height: 1.6; max-width: 31em; color: var(--muted); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero__actions .btn--lg { height: 56px; padding: 0 26px; border-radius: 14px; font-size: 16px; }
.hero__actions .btn--primary { box-shadow: 0 12px 24px -12px rgba(79, 70, 229, .7); }
.hero__actions .btn--outline { box-shadow: 0 1px 2px rgba(15, 21, 53, .05); }
.play { color: var(--primary); }

.facts { list-style: none; padding: 0; margin: 44px 0 0; display: flex; flex-wrap: wrap; gap: 20px 28px; }
.facts li { display: flex; align-items: center; gap: 12px; }
.facts li > span:last-child, .perks__item > span:nth-of-type(2) { display: grid; gap: 2px; line-height: 1.35; min-width: 0; }
.facts strong { font-size: 20px; color: var(--text); }
.facts small { color: var(--muted); font-size: 14px; max-width: 13ch; }
.facts__icon, .perks__icon { flex: none; width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; }
.facts__icon--green, .perks__icon--green { color: var(--success); background: #E7F5EC; }
.facts__icon--indigo, .perks__icon--indigo { color: var(--primary); background: #ECEBFD; }
.facts__icon--rose, .perks__icon--rose { color: var(--rose); background: #FDEBEE; }

/* Artwork: stacked by default (tablet and phone). */
.hero__art { display: block; width: min(1200px, 100% - 32px); margin: 40px auto 0; }
.hero__art img { width: 100%; height: auto; border-radius: 24px; box-shadow: 0 24px 48px -28px rgba(15, 21, 53, .35); }

/* Benefits strip */
.perks {
  list-style: none; margin: 32px 0 0; padding: 22px 8px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  background: var(--surface); border: 1px solid var(--border); border-radius: 22px;
  box-shadow: 0 1px 2px rgba(15, 21, 53, .04), 0 22px 44px -26px rgba(15, 21, 53, .22);
}
.perks li { min-width: 0; }
.perks li + li { border-left: 1px solid var(--border); }
.perks__item { display: flex; align-items: center; gap: 14px; padding: 6px 22px; text-decoration: none; color: inherit; border-radius: 14px; }
.perks__item:hover strong { color: var(--primary); }
.perks__chev { display: none; flex: none; margin-left: auto; color: var(--muted); }
.perks strong { font-size: 16px; color: var(--text); }
.perks small { color: var(--muted); font-size: 14px; }

/* Wide screens: art behind the copy, pinned right, full height, uncropped. */
@media (min-width: 1280px) {
  /* Art height is fixed per width; if the copy needs more room the stage grows
     upward in cream, so the art never slides left under the text. */
  .hero { --art-h: clamp(560px, 44vw, 820px); }
  .hero__stage { min-height: var(--art-h); display: flex; align-items: center; }
  .hero__inner { width: min(1200px, 100% - 64px); }
  .hero__copy { padding: 32px 0 64px; }
  .hero__art { position: absolute; inset: 0; width: auto; margin: 0; overflow: hidden; z-index: 0; pointer-events: none; }
  .hero__art img {
    position: absolute; right: 0; bottom: 0; height: var(--art-h); width: auto; max-width: none; aspect-ratio: 2 / 1;
    border-radius: 0; box-shadow: none;
    -webkit-mask-image: linear-gradient(90deg, transparent 0, rgba(0,0,0,.35) 18%, #000 33%), linear-gradient(180deg, transparent 0, #000 8%, #000 82%, transparent 100%);
    -webkit-mask-composite: source-in;
    mask-image: linear-gradient(90deg, transparent 0, rgba(0,0,0,.35) 18%, #000 33%), linear-gradient(180deg, transparent 0, #000 8%, #000 82%, transparent 100%);
    mask-composite: intersect;
  }
  /* The copy must clear the book stack, which sits 38% into the art. */
  .hero__copy { max-width: 480px; }
  /* Compact stats keep the row clear of the desk at every desktop width. */
  .facts { gap: 16px 18px; }
  .facts__icon { width: 40px; height: 40px; }
  .facts strong { font-size: 19px; }
  .facts small { font-size: 13px; max-width: 11ch; }
  .perks { margin-top: -56px; position: relative; z-index: 2; }
  /* Keep the copy legible over the faded art: a soft cream backing that ends
     before the illustration, plus slightly darker supporting text. */
  .hero__copy { position: relative; }
  .hero__copy::before {
    content: ""; position: absolute; z-index: -1; inset: -56px -96px -40px -80px; pointer-events: none;
    background: linear-gradient(90deg, rgba(251, 248, 244, .94) 0, rgba(251, 248, 244, .9) 62%, rgba(251, 248, 244, 0) 100%);
    -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 14%, #000 86%, transparent 100%);
    mask-image: linear-gradient(180deg, transparent 0, #000 14%, #000 86%, transparent 100%);
  }
  .hero .lede, .facts small { color: #454b66; }
}
/* Ultra-wide: keep copy and art together, and fade the art's right edge too. */
@media (min-width: 2400px) {
  .hero__stage { max-width: 2400px; margin-inline: auto; }
  .hero__art img {
    -webkit-mask-image: linear-gradient(90deg, transparent 0, rgba(0,0,0,.35) 18%, #000 33%, #000 90%, transparent 100%), linear-gradient(180deg, transparent 0, #000 8%, #000 82%, transparent 100%);
    mask-image: linear-gradient(90deg, transparent 0, rgba(0,0,0,.35) 18%, #000 33%, #000 90%, transparent 100%), linear-gradient(180deg, transparent 0, #000 8%, #000 82%, transparent 100%);
  }
}
@media (min-width: 1500px) {
  .hero__inner { width: min(1400px, 100% - 96px); }
  .hero__copy { max-width: 600px; }
}
@media (max-width: 1279px) {
  .hero__copy { max-width: 680px; }
  .hero h1 { font-size: clamp(40px, 6vw, 64px); }
  .perks { grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 8px; }
  .perks__item { padding: 18px 20px; }
  .perks li + li { border-left: 0; }
  .perks li:nth-child(even) { border-left: 1px solid var(--border); }
  .perks li:nth-child(n+3) { border-top: 1px solid var(--border); }
}
/* Phones: header, headline, description, CTAs, stats, artwork, benefits.
   Spacing steps: 8 / 12 / 16 / 20 / 24 px, one 20px side margin throughout. */
@media (max-width: 640px) {
  .hero { padding-bottom: 32px; }
  .hero::before {
    background:
      radial-gradient(60% 30% at 0% 46%, rgba(129, 120, 240, .14), transparent 70%),
      radial-gradient(50% 24% at 100% 10%, rgba(245, 181, 61, .12), transparent 70%);
  }
  .hero__copy { padding-top: 16px; }
  .pill { font-size: 11px; letter-spacing: .12em; padding: 6px 12px; margin-bottom: 14px; }
  .hero h1 { font-size: clamp(34px, 10vw, 42px); line-height: 1.04; margin-bottom: 14px; }
  .hero .lede { font-size: 16px; line-height: 1.5; }
  .hero__actions { margin-top: 20px; gap: 10px; flex-direction: column; align-items: stretch; max-width: 320px; }
  .hero__actions .btn--lg { height: 50px; font-size: 16px; border-radius: 12px; }
  .hero__actions .btn--outline { border-color: color-mix(in srgb, var(--primary) 35%, var(--border)); }

  /* Stats: three compact columns; icon stacks above the text on narrow phones. */
  .facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 24px; }
  .facts li { gap: 8px; align-items: flex-start; }
  .facts__icon { width: 34px; height: 34px; }
  .facts__icon svg { width: 18px; height: 18px; }
  .facts strong { font-size: 16px; line-height: 1.2; }
  .facts small { font-size: 12px; line-height: 1.3; max-width: none; }

  /* Artwork: phone crop (left wall trimmed; quote, owl, desk, sticky note kept),
     full width, natural aspect ratio, rising out of the cream at the top. */
  .hero__art { width: 100%; margin: -8px 0 0; position: relative; z-index: 0; }
  .hero__art img {
    width: 100%; height: auto; aspect-ratio: 900 / 643; border-radius: 0; box-shadow: none;
    -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 16%, #000 78%, transparent 100%);
    mask-image: linear-gradient(180deg, transparent 0, #000 16%, #000 78%, transparent 100%);
  }

  /* Benefits: compact list card overlapping the bottom of the artwork. */
  .hero__perks { position: relative; z-index: 1; }
  .perks { grid-template-columns: 1fr; margin-top: 16px; padding: 4px 14px; border-radius: 18px; }
  .perks li:nth-child(even) { border-left: 0; }
  .perks li + li { border-top: 1px solid var(--border); }
  .perks__item { gap: 12px; padding: 11px 0; }
  .perks__icon { width: 36px; height: 36px; }
  .perks__icon svg { width: 18px; height: 18px; }
  .perks strong { font-size: 15px; }
  .perks small { font-size: 13px; }
  .perks__chev { display: block; }
}
@media (max-width: 400px) {
  .facts li { flex-direction: column; gap: 6px; }
}

/* Sections */
.section { padding: 96px 0; }
.section--tint { background: var(--tint); }
.section__head { display: grid; gap: 12px; margin-bottom: 44px; max-width: 760px; }
.section h2 { font-size: clamp(30px, 4vw, 46px); font-weight: 800; }


/* Motion: one-time entrance and scroll reveal. */
.rise { opacity: 0; transform: translateY(14px); animation: rise .7s cubic-bezier(.2, .7, .2, 1) var(--d, 0ms) forwards; }
/* Hero copy slides in but is never invisible, so it paints (and counts as LCP) at once. */
.hero__copy .rise { opacity: 1; animation-name: slide; }
@keyframes slide { from { transform: translateY(10px); } to { transform: none; } }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.reveal.is-in { opacity: 1; transform: none; }
@keyframes rise { to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rise, .reveal { opacity: 1; transform: none; animation: none; transition: none; }
}
/* No JS: show everything. */
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- Mentor (features) ----------
   Editorial grid: two wide tiles (plan, revision) carry the story with a small
   diagram each; practice and progress support them. */
.mentor { position: relative; isolation: isolate; overflow: hidden; }
.mentor__art { display: none; }
.mentor__head h2 .accent, .exams-sec h2 .accent { color: var(--primary); }
.bento {
  display: grid; gap: 20px;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-areas:
    "plan plan plan plan plan plan plan prac prac prac prac prac"
    "prog prog prog prog prog rev rev rev rev rev rev rev";
}
.tile--plan { grid-area: plan; }
.tile--practice { grid-area: prac; }
.tile--progress { grid-area: prog; }
.tile--revision { grid-area: rev; }
.tile {
  position: relative; display: flex; flex-direction: column; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border); border-radius: 22px;
  box-shadow: 0 1px 2px rgba(15, 21, 53, .04), 0 18px 40px -30px rgba(15, 21, 53, .25);
}
.tile h3 { font-size: 21px; letter-spacing: -0.01em; color: var(--text); margin: 0 0 8px; }
.tile p { color: var(--muted); font-size: 15px; line-height: 1.6; }
.tile__text { padding: 4px 28px 28px; }
.tile__art { padding: 18px 18px 0; }
/* Transparent art: sits directly on the card in both themes. */
.tile__img { width: 100%; height: auto; }
.tile--practice .tile__art, .tile--progress .tile__art { padding: 8px 64px 0; }
.tile__icon { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 16px; }
.tile__icon--indigo { color: var(--primary); background: #ecebfd; }
.tile__icon--amber { color: var(--warning); background: #fdf1df; }

/* Wide tiles: text on the left, illustration on the right. */
.tile--wide { flex-direction: row; align-items: center; }
.tile--wide .tile__text { flex: 1 1 52%; padding: 32px 8px 32px 32px; }
.tile--wide .tile__art { flex: 1 1 48%; padding: 16px 16px 16px 0; }
.tile--plan { background: linear-gradient(135deg, #fff 55%, #f5f3ff); }
.tile--revision { background: linear-gradient(135deg, #fff 55%, #fff6ea); }

/* Plan diagram: share of free time that gets planned. */
.fill { margin: 20px 0 0; }
.fill figcaption { display: flex; justify-content: space-between; font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 8px; }
.fill figcaption span:last-child { color: var(--accent-text); }
.fill__bar { display: flex; height: 12px; border-radius: 999px; overflow: hidden; background: #f1ede6; }
.fill__bar i { flex: 0 0 calc(var(--w) * 1%); }
.fill__bar i + i { box-shadow: inset 2px 0 0 #fff; }
.fill__key { list-style: none; padding: 0; margin: 10px 0 0; display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12px; color: var(--muted); }
.fill__key li { display: inline-flex; align-items: center; gap: 6px; }
.fill__key i { width: 8px; height: 8px; border-radius: 50%; }
.s-bio { background: var(--biology); } .s-phy { background: var(--physics); } .s-che { background: var(--chemistry); }
.s-rev { background: var(--primary); } .s-free { background: repeating-linear-gradient(45deg, #e7e0d4 0 3px, #f4efe7 3px 6px); }

/* Revision diagram: reviews at growing intervals. */
.spaced { margin: 22px 0 0; }
.spaced__line { position: relative; height: 24px; }
.spaced__line::before { content: ""; position: absolute; left: 0; right: 0; top: 7px; height: 2px; background: repeating-linear-gradient(90deg, #e3d9c9 0 6px, transparent 6px 11px); }
.spaced__line b {
  position: absolute; top: 0; left: calc(var(--x) * 1%); width: 16px; height: 16px; margin-left: -8px;
  border-radius: 50%; background: #fff; border: 3px solid var(--warning);
}
.spaced__line b:first-child { margin-left: 0; border-color: var(--primary); background: var(--primary); }
.spaced__line b:last-child { margin-left: -16px; }
.spaced__labels { display: flex; justify-content: space-between; font-size: 12px; font-weight: 600; color: var(--muted); margin-top: 0; }
.spaced__labels span:first-child { color: var(--accent-text); }

@media (min-width: 1100px) {
  .mentor__art {
    display: block; position: absolute; z-index: -1; top: 0; right: 0; width: 46%; max-width: 760px; height: auto; pointer-events: none;
    -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 30%), linear-gradient(180deg, #000 55%, transparent 92%);
    -webkit-mask-composite: source-in;
    mask-image: linear-gradient(90deg, transparent 0, #000 30%), linear-gradient(180deg, #000 55%, transparent 92%);
    mask-composite: intersect;
  }
  .mentor { padding-top: 88px; }
  .mentor__head { max-width: 560px; min-height: 250px; margin-bottom: 36px; }
}
@media (max-width: 1099px) {
  .bento { grid-template-columns: 1fr 1fr; grid-template-areas: "plan plan" "prac prog" "rev rev"; }
}

/* ---------- Exams ---------- */
.exams-sec { position: relative; isolation: isolate; overflow: hidden; }
.exams-sec__sky {
  position: absolute; z-index: -1; top: 0; right: 0; width: min(1500px, 100%); height: auto; pointer-events: none; opacity: .9;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 45%), linear-gradient(180deg, transparent 0, #000 25%, #000 50%, transparent 82%);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(90deg, transparent 0, #000 45%), linear-gradient(180deg, transparent 0, #000 25%, #000 50%, transparent 82%);
  mask-composite: intersect;
}
.exams { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
/* Supporting copy sits on the sky: same darker muted tone the hero uses over art. */
:root:not([data-theme="dark"]) .exams-sec .lede { color: #454b66; }
.exam {
  --tone: var(--primary); --tint: #f0eefd;
  display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--border); border-radius: 22px; overflow: hidden;
  box-shadow: 0 1px 2px rgba(15, 21, 53, .04), 0 18px 40px -30px rgba(15, 21, 53, .25);
}
.exam--neet { --tone: #0a6e4b; --tint: #eaf6ef; }
.exam--jee { --tone: #2357b8; --tint: #eaf1fd; }
.exam--cuet { --tone: #5b4fd9; --tint: #f0eefd; }
.exam--gate { --tone: #934805; --tint: #fdf2e3; }
.exam__art { margin: 10px 10px 0; border-radius: 16px; background: var(--tint); aspect-ratio: 2 / 1; display: grid; place-items: center; overflow: hidden; }
.exam__img { width: 100%; height: 100%; object-fit: contain; }
.exam__body { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.exam h3 { font-size: 22px; letter-spacing: -0.01em; color: var(--text); margin: 0; }
.exam__meta { font-size: 13px; font-weight: 600; color: var(--tone); margin: 4px 0 14px; }
.exam__chips { list-style: none; padding: 0; margin: 0 0 14px; display: flex; flex-wrap: wrap; gap: 6px; }
.exam__chips li { font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px; color: var(--tone); background: var(--tint); }
.exam__desc { color: var(--muted); font-size: 14.5px; line-height: 1.6; }
@media (max-width: 1099px) {
  .exams { grid-template-columns: 1fr 1fr; }
  .exams-sec__sky {
    -webkit-mask-image: linear-gradient(90deg, transparent 0, transparent 30%, #000 70%), linear-gradient(180deg, transparent 0, #000 25%, #000 50%, transparent 82%);
    mask-image: linear-gradient(90deg, transparent 0, transparent 30%, #000 70%), linear-gradient(180deg, transparent 0, #000 25%, #000 50%, transparent 82%);
  }
}

/* ---------- Phones: recomposed, not shrunk ---------- */
@media (max-width: 640px) {
  .bento { grid-template-columns: 1fr; grid-template-areas: "plan" "prac" "prog" "rev"; gap: 14px; }
  /* Every tile: illustration, heading, text. Same art box for all four. */
  .tile--wide { flex-direction: column-reverse; align-items: stretch; }
  .tile__art, .tile--wide .tile__art, .tile--practice .tile__art, .tile--progress .tile__art {
    flex: none; aspect-ratio: 16 / 9; padding: 14px 20px 0; display: grid; place-items: center;
  }
  .tile__img { width: 100%; height: 100%; object-fit: contain; }
  .tile__text, .tile--wide .tile__text { flex: none; padding: 8px 20px 22px; }
  .tile__icon { display: none; }
  .tile h3 { font-size: 19px; }

  .section.exams-sec { padding-top: 176px; }
  .exams-sec__sky { width: 170%; max-width: none; right: -35%; opacity: .85;
    -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 20%, #000 44%, transparent 60%); mask-image: linear-gradient(180deg, transparent 0, #000 20%, #000 44%, transparent 60%); }
  /* Exams: one column, all four fully visible. */
  .exams { grid-template-columns: 1fr; gap: 14px; }
  .exam__body { padding: 16px 18px 20px; }
  .exam h3 { font-size: 20px; }
}

/* ---------- How it works ---------- */
.how { position: relative; isolation: isolate; overflow: hidden; }
.how__plane {
  position: absolute; z-index: -1; top: 64px; right: max(16px, calc((100% - 1200px) / 2 - 24px));
  width: min(520px, 38%); height: auto; pointer-events: none;
}
.how h2 { font-size: clamp(32px, 4vw, 54px); }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.step {
  display: flex; flex-direction: column; padding: 18px 26px 30px;
  border: 1.5px dashed #e4d9c8; border-radius: 22px; background: rgba(255, 255, 255, .45);
}
.step__art { position: relative; aspect-ratio: 2.05 / 1; min-height: 0; overflow: hidden; margin: 0 -8px 6px; }
/* Absolutely filled so taller art scales down inside the box instead of overflowing it. */
.step__art img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.step__n {
  width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; margin: 2px 0 16px;
  background: var(--primary-fill); color: #fff; font-weight: 700; font-size: 17px;
  box-shadow: 0 8px 16px -8px rgba(79, 70, 229, .7);
}
.step h3 { font-size: 22px; letter-spacing: -0.01em; color: var(--text); margin: 0 0 8px; }
.step p { color: var(--muted); font-size: 16px; line-height: 1.6; }

/* ---------- Scene sections (practice, plan, pricing) ----------
   One illustration behind the section, positioned inside a frame capped at
   1920px so ultra-wide screens keep the composition; content on top. */
.scene { position: relative; isolation: isolate; overflow: hidden; }
.scene__art { position: absolute; z-index: -1; top: 0; bottom: 0; left: 50%; width: min(100%, 1920px); transform: translateX(-50%); pointer-events: none; }
.scene__art img { position: absolute; max-width: none; height: auto; }
.scene__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.scene__copy { position: relative; display: grid; gap: 14px; justify-items: start; align-content: start; }
.scene__copy::before {
  content: ""; position: absolute; z-index: -1; inset: -48px -64px; pointer-events: none;
  background: radial-gradient(closest-side, rgba(251, 248, 244, .92), rgba(251, 248, 244, .75) 60%, rgba(251, 248, 244, 0));
}
.scene h2 { font-size: clamp(34px, 4vw, 56px); }
.scene h2 .accent { color: var(--primary); }
.scene .lede { font-size: 18px; }
.scene .link { margin-top: 8px; color: var(--accent-text); }

/* Practice: owl under the copy, question card over the window. */
.section.scene--quiz { padding: 96px 0 72px; }
.scene--quiz .scene__art img {
  width: 66%; left: -1%; bottom: 0;
  -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 22%, #000 84%, transparent 100%), linear-gradient(90deg, #000 70%, transparent 98%);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(180deg, transparent 0, #000 22%, #000 84%, transparent 100%), linear-gradient(90deg, #000 70%, transparent 98%);
  mask-composite: intersect;
}
.scene--quiz .scene__grid { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); align-items: start; min-height: clamp(600px, 50vw, 820px); }
.scene--quiz .scene__copy { position: relative; padding-top: 8px; max-width: 560px; }
.scene--quiz .qcard { align-self: center; }

/* Plan: week card left, owl beside it, copy on the open wall. */
.section.scene--plan { padding: 80px 0; }
.scene--plan .scene__art img {
  width: 56%; left: 28.5%; top: 52%; transform: translateY(-50%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 22%, #000 62%, transparent 96%), linear-gradient(180deg, transparent 0, #000 14%, #000 84%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(90deg, transparent 0, #000 22%, #000 62%, transparent 96%), linear-gradient(180deg, transparent 0, #000 14%, #000 84%, transparent 100%);
  mask-composite: intersect;
}
.scene__grid--reverse { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); min-height: clamp(520px, 40vw, 700px); }
.scene__grid--reverse .scene__copy { order: 2; justify-self: end; max-width: 430px; }
.scene--plan .wk { max-width: 470px; }

/* Pricing: copy on the open left of the workspace scene. */
.section.scene--price { padding: 72px 0; }
.scene--price .scene__art img {
  width: 92%; right: -4%; top: 50%; transform: translateY(-50%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 12%, #000 86%, transparent 100%);
  mask-image: linear-gradient(180deg, transparent 0, #000 12%, #000 86%, transparent 100%);
}
.scene__grid--solo { grid-template-columns: minmax(0, 1fr); min-height: clamp(420px, 38vw, 640px); }
.scene--price .scene__copy { max-width: 540px; }
.scene--price .btn--lg { margin-top: 14px; }

/* Question card: works on the page (pick an option, see why). */
.qcard {
  margin: 0; padding: 28px 30px; background: var(--surface); border: 1px solid var(--border); border-radius: 24px;
  box-shadow: 0 1px 2px rgba(15, 21, 53, .04), 0 30px 60px -36px rgba(15, 21, 53, .35);
}
.qcard__crumb { font-size: 14px; color: var(--muted); }
.nowrap { white-space: nowrap; }
.qcard__prompt { font-size: 18px; font-weight: 700; line-height: 1.5; color: var(--text); margin: 10px 0 18px; }
.qcard__opts { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.opt {
  width: 100%; display: flex; align-items: center; gap: 14px; padding: 11px 16px; text-align: left;
  font: inherit; font-size: 17px; color: var(--text); background: #fff; border: 1px solid var(--border); border-radius: 12px; cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}
.opt:hover { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); }
.opt b { flex: none; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; font-size: 14px; border: 1px solid var(--border); background: #fbf9f6; }
.opt.is-answer { border-color: var(--success); }
.opt.is-picked.is-right { border-color: var(--success); background: #ebf7ef; }
.opt.is-picked.is-right b { background: var(--success); border-color: var(--success); color: #fff; }
.opt.is-picked.is-wrong { border-color: var(--danger); background: #fdeeee; }
.opt.is-picked.is-wrong b { background: var(--danger); border-color: var(--danger); color: #fff; }
.qcard__fb { display: flex; gap: 12px; margin-top: 16px; padding: 16px 18px; border-radius: 14px; background: #ebf7ef; color: var(--success); }
.qcard__fb.is-wrong { background: #fdeeee; color: var(--danger); }
.qcard__mark { flex: none; margin-top: 1px; }
.qcard__verdict { display: block; font-size: 16px; }
.qcard__why, .qcard__more { color: #3f4560; font-size: 15px; line-height: 1.55; }
.qcard__more { margin-top: 12px; padding: 14px 18px; border-radius: 14px; background: #f7f4ef; }
.qcard__actions { display: flex; justify-content: space-between; gap: 12px; margin-top: 18px; flex-wrap: wrap; }
.qcard__actions .btn { height: 48px; border-radius: 12px; }
.btn--soft { background: #f2f0fc; color: var(--accent-text); border-color: #e6e2fb; }
.btn--soft:hover { background: #e9e5fb; }

/* Week card with a working "1 hour left" switch. */
.wk {
  margin: 0; padding: 26px 26px 22px; background: var(--surface); border: 1px solid var(--border); border-radius: 24px;
  box-shadow: 0 1px 2px rgba(15, 21, 53, .04), 0 30px 60px -36px rgba(15, 21, 53, .35);
}
.wk__head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.wk__title { font-size: 20px; font-weight: 700; color: var(--text); }
.seg { display: inline-flex; padding: 4px; gap: 2px; border-radius: 12px; background: #f4efe8; }
.seg__btn { height: 32px; padding: 0 12px; border: 0; border-radius: 9px; background: transparent; font: inherit; font-size: 13px; font-weight: 600; color: var(--muted); cursor: pointer; }
.seg__btn[aria-pressed="true"] { background: #fff; color: var(--text); box-shadow: 0 1px 3px rgba(15, 21, 53, .12); }
.no-js .seg { display: none; }
.wk__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.wk__row {
  --c: var(--primary); --p: var(--full);
  display: grid; grid-template-columns: 12px minmax(0, 1fr) auto 30px; align-items: center; gap: 14px;
  padding: 14px 16px; border-radius: 14px; background: #f8f4ee; transition: opacity .2s ease;
}
.wk__row--bio { --c: var(--biology); } .wk__row--phy { --c: var(--physics); } .wk__row--che { --c: var(--chemistry); }
.wk__dot { width: 12px; height: 12px; border-radius: 50%; background: var(--c); }
.wk__name { font-size: 16px; font-weight: 500; color: var(--text); min-width: 0; }
.wk__note { display: none; font-size: 12px; font-weight: 600; color: var(--muted); }
.wk__min { font-size: 14px; color: var(--muted); white-space: nowrap; }
.wk__ring {
  width: 30px; height: 30px; border-radius: 50%;
  background: conic-gradient(var(--c) calc(var(--p) * 360deg), #e6dfd4 0);
  -webkit-mask: radial-gradient(circle, transparent 9px, #000 10px); mask: radial-gradient(circle, transparent 9px, #000 10px);
}
.wk__short { display: none; }
.wk__foot { margin-top: 16px; font-size: 14px; color: var(--muted); line-height: 1.5; }
.wk.is-short .wk__short { display: inline; }
.wk.is-short .wk__full { display: none; }
.wk.is-short .wk__row { --p: var(--short); }
.wk.is-short .wk__note { display: block; }
.wk.is-short .is-skip { opacity: .55; }

@media (max-width: 1100px) {
  .steps { gap: 16px; }
  .step { padding: 14px 18px 24px; }
  .step h3 { font-size: 19px; }
  .step p { font-size: 15px; }
}

/* Tablets and phones: sections recomposed top to bottom. */
@media (max-width: 1100px) {
  .how__plane { width: 240px; top: 32px; opacity: .8; }
  .steps { grid-template-columns: 1fr; }
  .step { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); column-gap: 20px; align-items: center; padding: 14px 20px 14px 14px; }
  .step__art { grid-row: span 3; margin: 0; }
  .step__n { margin: 0 0 8px; width: 34px; height: 34px; font-size: 15px; }

  .section.scene { display: flex; flex-direction: column; padding: 56px 0; }
  .scene__grid, .scene__grid--reverse, .scene__grid--solo { display: contents; }
  .scene__copy, .qcard, .wk { width: calc(100% - 40px); max-width: 640px; margin-inline: auto; }
  .scene__copy { order: 1; }
  .scene__grid--reverse .scene__copy { order: 1; }
  .scene__art { order: 2; position: relative; left: auto; transform: none; width: 100%; aspect-ratio: 16 / 10; max-height: 440px; margin-top: 16px; }
  .scene .scene__art img {
    width: 100%; height: 100%; left: 0; right: auto; top: 0; bottom: auto; transform: none; object-fit: cover; object-position: var(--mpos, 50% 50%);
    -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 18%, #000 80%, transparent 100%); -webkit-mask-composite: source-over;
    mask-image: linear-gradient(180deg, transparent 0, #000 18%, #000 80%, transparent 100%); mask-composite: add;
  }
  .qcard, .wk { order: 3; margin-top: -72px; position: relative; max-width: 600px; }
  .scene--quiz { --mpos: 34% 72%; }
  .scene--plan { --mpos: 26% 70%; }
  .scene--price { --mpos: 72% 80%; }
  .section.scene--price { padding-bottom: 24px; }
  .scene--price .scene__art { aspect-ratio: 16 / 9; }
}
@media (max-width: 640px) {
  /* Phones: crop in on the owl instead of showing the whole wide desk. */
  .scene--price .scene__art { aspect-ratio: 4 / 3; overflow: hidden; }
  .scene--price { --mpos: 74% 78%; }
  .scene.scene--price .scene__art img { transform: scale(1.3); transform-origin: 72% 92%; }
  /* The zoomed image is clipped by its box, so the soft edges live on the box. */
  .scene.scene--price .scene__art img { -webkit-mask-image: none; mask-image: none; }
  .scene--price .scene__art {
    -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 16%, #000 82%, transparent 100%);
    mask-image: linear-gradient(180deg, transparent 0, #000 16%, #000 82%, transparent 100%);
  }
  :root[data-theme="dark"] .scene.scene--price .scene__art img { -webkit-mask-image: none; mask-image: none; }
  :root[data-theme="dark"] .scene--price .scene__art {
    -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 8%, #000 92%, transparent 100%);
    mask-image: linear-gradient(180deg, transparent 0, #000 8%, #000 92%, transparent 100%);
  }
}
@media (max-width: 640px) {
  .how h2 { font-size: 32px; }
  .how h2 br { display: none; }
  .how__plane { display: none; }
  .steps { gap: 12px; }
  .step { display: flex; flex-direction: column; align-items: flex-start; padding: 12px 18px 20px; }
  .step__art { align-self: stretch; }
  .step__art { aspect-ratio: 2.05 / 1; margin: 0 0 10px; }
  .step__n { width: 28px; height: 28px; font-size: 13px; margin-bottom: 6px; }
  .step h3 { font-size: 17px; margin-bottom: 4px; }
  .step p { font-size: 14px; line-height: 1.5; }
  .scene h2 { font-size: 34px; }
  .scene .lede { font-size: 16px; }
  .qcard, .wk { width: calc(100% - 24px); padding: 20px 18px; border-radius: 20px; margin-top: -56px; }
  .qcard__prompt { font-size: 16px; }
  .opt { font-size: 16px; padding: 9px 12px; }
  .qcard__actions .btn { flex: 1 1 100%; }
  .wk__row { gap: 10px; padding: 12px; grid-template-columns: 10px minmax(0, 1fr) auto 26px; }
  .wk__ring { width: 26px; height: 26px; -webkit-mask: radial-gradient(circle, transparent 8px, #000 9px); mask: radial-gradient(circle, transparent 8px, #000 9px); }
  .wk__name { font-size: 15px; }
  .scene--price .btn--lg { width: 100%; }
}

/* ---------- FAQ ---------- */
.faqs { position: relative; overflow: hidden; }
.section.faqs { padding-bottom: 48px; }
.faqs__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: start; }
.faqs__intro { display: grid; gap: 12px; align-content: start; }
.faqs h2 { font-size: clamp(32px, 3.8vw, 52px); }
.faqs__art {
  width: calc(100% + 96px); max-width: none; height: auto; margin: 12px 0 0 -96px; pointer-events: none;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 22%, #000 72%, transparent 100%), linear-gradient(180deg, transparent 0, #000 16%, #000 76%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(90deg, transparent 0, #000 22%, #000 72%, transparent 100%), linear-gradient(180deg, transparent 0, #000 16%, #000 76%, transparent 100%);
  mask-composite: intersect;
}
.faqs__list { display: grid; gap: 10px; }
:root { interpolate-size: allow-keywords; }
.faq__item { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; transition: border-color .2s ease, box-shadow .2s ease; }
.faq__item[open] { border-color: #e4dccf; box-shadow: 0 14px 30px -24px rgba(15, 21, 53, .3); }
.faq__item summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 17px 20px; font-size: 16.5px; font-weight: 600; color: var(--text);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--accent-text); }
.faq__icon { position: relative; flex: none; width: 16px; height: 16px; }
.faq__icon::before, .faq__icon::after { content: ""; position: absolute; left: 0; right: 0; top: 7px; height: 2px; border-radius: 2px; background: var(--primary); transition: transform .2s ease; }
.faq__icon::after { transform: rotate(90deg); }
.faq__item[open] .faq__icon::after { transform: rotate(0deg); }
.faq__item p { padding: 0 20px 18px; max-width: 62ch; color: var(--muted); font-size: 15px; line-height: 1.65; }
/* Smooth open/close where supported; instant elsewhere. */
.faq__item::details-content { block-size: 0; overflow: hidden; transition: block-size .25s ease, content-visibility .25s allow-discrete; }
.faq__item[open]::details-content { block-size: auto; }
.faqs__help { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 10px; padding: 0 4px; font-size: 15px; color: var(--muted); }
.faqs__help svg { color: var(--muted); }
.faqs__help a { display: inline-flex; align-items: center; gap: 6px; color: var(--accent-text); font-weight: 600; text-decoration: none; }
.faqs__help a:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- Final CTA: the night scene, owl left, words right ---------- */
.cta { position: relative; isolation: isolate; overflow: hidden; color: #fff; background: #121b3b; min-height: clamp(460px, 37vw, 640px); display: flex; align-items: center; }
.cta__art { position: absolute; inset: 0; z-index: -1; }
.cta__art img { width: 100%; height: 100%; object-fit: cover; object-position: 20% 50%; }
/* A gentle darkening behind the copy only, so the moonlit art stays vivid. */
.cta__art::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(18, 27, 59, 0) 25%, rgba(18, 27, 59, .55) 48%, rgba(18, 27, 59, .35) 78%, rgba(18, 27, 59, .1)); }
.cta__inner { display: grid; gap: 16px; justify-items: start; padding: 72px 0 72px min(38%, 730px); }
.cta h2 { font-size: clamp(34px, 3.6vw, 56px); font-weight: 800; color: #fff; }
.cta__accent { color: #8f88ff; }
.cta__lede { max-width: 40ch; font-size: 18px; line-height: 1.55; color: #e7e8f6; }
.cta .btn--lg { margin-top: 8px; box-shadow: 0 14px 30px -14px rgba(87, 73, 232, .9); }
.cta__note { font-size: 14px; color: #c9cbe6; }
.eyebrow--light { color: #b8b3ff; }

/* ---------- Footer ---------- */
.footer { padding: 52px 0 44px; background: var(--bg); }
.footer__grid { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 5fr) minmax(0, 3fr); gap: 40px; align-items: start; }
.footer__brand .brand { align-items: center; gap: 14px; font-size: 22px; }
.footer__brand .brand__logo { width: 44px; height: 44px; }
.footer__brand .brand small { display: block; margin-top: 2px; font-size: 14px; font-weight: 400; letter-spacing: 0; color: var(--muted); }
.footer__nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; padding-inline: 40px; border-inline: 1px solid var(--border); }
.footer__nav div { display: grid; gap: 2px; align-content: start; }
.footer__h { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.footer__nav a { font-size: 14px; color: var(--muted); text-decoration: none; padding-block: 6px; }
.footer__nav a:hover { color: var(--text); }
.footer__note { display: grid; gap: 14px; font-size: 14px; color: var(--muted); line-height: 1.6; }
.footer__copy { font-size: 13px; }

@media (max-width: 1100px) {
  .faqs__grid { grid-template-columns: 1fr; gap: 24px; }
  .faqs__intro { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); column-gap: 32px; align-items: end; }
  .faqs__intro > :not(.faqs__art) { grid-column: 1; }
  .faqs__art { grid-column: 2; grid-row: 1 / span 3; width: 100%; margin: 0; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__nav { grid-column: 1 / -1; grid-row: 2; border-inline: 0; border-block: 1px solid var(--border); padding: 24px 0; }
}
@media (max-width: 760px) {
  .cta { flex-direction: column; align-items: stretch; min-height: 0; }
  .cta__art { position: relative; inset: auto; aspect-ratio: 16 / 9; max-height: 300px; }
  .cta__art img { object-position: 8% 55%; }
  .cta__art::after { background: linear-gradient(180deg, rgba(18, 27, 59, 0) 55%, #121b3b 100%); }
  .cta__inner { padding: 4px 0 52px; }
  .cta__lede { font-size: 16px; }
}
@media (max-width: 640px) {
  .faqs__intro { grid-template-columns: 1fr; }
  .faqs__art { grid-column: 1; grid-row: auto; max-width: 300px; margin: 4px auto 0; }
  .faq__item summary { padding: 15px 16px; font-size: 15.5px; }
  .faq__item p { padding: 0 16px 16px; font-size: 14.5px; }
  .cta .btn--lg { width: 100%; }
  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .footer__nav { grid-row: auto; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  .faq__item::details-content { transition: none; }
}

/* Responsive */
@media (max-width: 1100px) {
}
@media (max-width: 900px) {
    .nav__links { display: none; }
  .menu { display: block; }
  .nav__inner { gap: 12px; }
  .section { padding: 72px 0; }
}
@media (max-width: 560px) {
  .nav__cta .btn--ghost { display: none; }
  .nav__inner { height: 60px; gap: 8px; }
  .brand { font-size: 17px; gap: 8px; }
  .brand__logo { width: 30px; height: 30px; }
  .nav__cta .btn--primary { height: 38px; padding: 0 14px; font-size: 14px; border-radius: 10px; }
  .lede { font-size: 17px; }
}
@media (min-width: 1500px) {
  .wrap { width: min(1400px, 100% - 96px); }
}

/* Legal pages */
.legal h1 { font-size: clamp(32px, 5vw, 44px); margin-bottom: 8px; }
.legal h2 { font-size: 22px; margin: 32px 0 8px; }
.legal p, .legal li { color: var(--muted); }
.legal ul { padding-left: 20px; display: grid; gap: 6px; }

/* Phones: one side margin and section rhythm everywhere. */
@media (max-width: 640px) {
  .wrap { width: calc(100% - 40px); }
  .section { padding: 56px 0; }
}

/* ---------- Theme toggle ---------- */
.theme-btn {
  width: 40px; height: 40px; flex: none; display: grid; place-items: center; padding: 0; cursor: pointer;
  border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text);
  transition: background-color .15s ease, border-color .15s ease;
}
.theme-btn { -webkit-tap-highlight-color: transparent; }
.theme-btn:hover { border-color: color-mix(in srgb, var(--primary) 50%, var(--border)); }
.theme-btn__sun { display: none; }
:root[data-theme="dark"] .theme-btn__sun { display: block; }
:root[data-theme="dark"] .theme-btn__moon { display: none; }
.nav__cta { align-items: center; }
@media (max-width: 560px) { .theme-btn { width: 38px; height: 38px; border-radius: 10px; } }

/* ---------- Dark theme ----------
   Same layout as light; only colour, borders, shadows and how the art meets
   the page change. Palette: warm midnight. The illustrations all have a baked
   cream ground (none are transparent), so:
   - every illustration keeps its light-mode box and feathering; where copy
     sits over the art in light mode, the art fades in after the copy instead
     (cut points computed with container units);
   - feature, step, exam and plane art are transparent assets, so they sit
     directly on the card or page in both themes.
   No filters, no inversion. */
:root[data-theme="dark"] {
  --bg: #101116;
  --tint: #151720;
  --surface: #1b1d27;
  --surface-2: #232533;
  --text: #f5f3ff;
  --muted: #b5b5c8;
  --border: #30313f;
  --primary: #a39aff;
  --primary-fill: #5947f5;
  --primary-strong: #4a38e6;
  --accent-text: #b8b1ff;
  --primary-soft: #262445;
  --success: #4ade80;
  --danger: #f87171;
  --warning: #f5b53d;
  --rose: #fb7185;
  --success-soft: rgba(74, 222, 128, .12);
  --danger-soft: rgba(248, 113, 113, .12);
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 18px 40px -22px rgba(0, 0, 0, .6);
  /* Content edge, matching .wrap. */
  --g: max(16px, (100cqw - 1200px) / 2);
  color-scheme: dark;
}
@media (min-width: 1500px) { :root[data-theme="dark"] { --g: max(48px, (100cqw - 1400px) / 2); } }
/* Size containers only where the art cuts are computed. */
@media (min-width: 1280px) { :root[data-theme="dark"] .hero__stage { container-type: inline-size; } }
@media (min-width: 641px) { :root[data-theme="dark"] .exams-sec { container-type: inline-size; } }
@media (min-width: 1101px) { :root[data-theme="dark"] .scene { container-type: inline-size; } }

/* Icon chips and small accents. */
:root[data-theme="dark"] :is(.facts__icon--green, .perks__icon--green) { background: color-mix(in srgb, var(--success) 14%, transparent); }
:root[data-theme="dark"] :is(.facts__icon--indigo, .perks__icon--indigo, .tile__icon--indigo) { background: color-mix(in srgb, var(--primary) 16%, transparent); }
:root[data-theme="dark"] :is(.facts__icon--rose, .perks__icon--rose) { background: color-mix(in srgb, var(--rose) 14%, transparent); }
:root[data-theme="dark"] .tile__icon--amber { background: color-mix(in srgb, var(--warning) 14%, transparent); }

/* ---- Hero ---- */
@media (min-width: 1280px) {
  :root[data-theme="dark"] .hero { --copy: 480px; }
  :root[data-theme="dark"] .hero__copy::before { content: none; }
  :root[data-theme="dark"] .hero .lede, :root[data-theme="dark"] .facts small { color: var(--muted); }
  /* Art starts where the copy ends, then a short soft edge. */
  :root[data-theme="dark"] .hero__art img {
    --cut: calc(var(--g) + var(--copy) - 8px - (100cqw - 2 * var(--art-h)));
    -webkit-mask-image: linear-gradient(90deg, transparent var(--cut), rgba(0, 0, 0, .08) calc(var(--cut) + 18px), rgba(0, 0, 0, .4) calc(var(--cut) + 36px), rgba(0, 0, 0, .82) calc(var(--cut) + 54px), #000 calc(var(--cut) + 72px)), linear-gradient(180deg, transparent 0, #000 4%, #000 90%, transparent 100%);
    mask-image: linear-gradient(90deg, transparent var(--cut), rgba(0, 0, 0, .08) calc(var(--cut) + 18px), rgba(0, 0, 0, .4) calc(var(--cut) + 36px), rgba(0, 0, 0, .82) calc(var(--cut) + 54px), #000 calc(var(--cut) + 72px)), linear-gradient(180deg, transparent 0, #000 4%, #000 90%, transparent 100%);
  }
}
@media (min-width: 1500px) { :root[data-theme="dark"] .hero { --copy: 600px; } }
@media (min-width: 2400px) {
  :root[data-theme="dark"] .hero__art img {
    -webkit-mask-image: linear-gradient(90deg, transparent var(--cut), rgba(0, 0, 0, .08) calc(var(--cut) + 18px), rgba(0, 0, 0, .4) calc(var(--cut) + 36px), rgba(0, 0, 0, .82) calc(var(--cut) + 54px), #000 calc(var(--cut) + 72px), #000 90%, transparent 100%), linear-gradient(180deg, transparent 0, #000 4%, #000 90%, transparent 100%);
    mask-image: linear-gradient(90deg, transparent var(--cut), rgba(0, 0, 0, .08) calc(var(--cut) + 18px), rgba(0, 0, 0, .4) calc(var(--cut) + 36px), rgba(0, 0, 0, .82) calc(var(--cut) + 54px), #000 calc(var(--cut) + 72px), #000 90%, transparent 100%), linear-gradient(180deg, transparent 0, #000 4%, #000 90%, transparent 100%);
  }
}
/* ---- Mentor: same corner placement, shorter fades ---- */
@media (min-width: 1100px) {
  :root[data-theme="dark"] .mentor__art {
    -webkit-mask-image: linear-gradient(90deg, transparent 0px, rgba(0, 0, 0, .08) calc(0px + 14px), rgba(0, 0, 0, .4) calc(0px + 28px), rgba(0, 0, 0, .82) calc(0px + 42px), #000 calc(0px + 56px)), linear-gradient(180deg, transparent 0, #000 3%, #000 66%, transparent 92%);
    mask-image: linear-gradient(90deg, transparent 0px, rgba(0, 0, 0, .08) calc(0px + 14px), rgba(0, 0, 0, .4) calc(0px + 28px), rgba(0, 0, 0, .82) calc(0px + 42px), #000 calc(0px + 56px)), linear-gradient(180deg, transparent 0, #000 3%, #000 66%, transparent 92%);
  }
}
:root[data-theme="dark"] .tile--plan { background: linear-gradient(135deg, var(--surface) 55%, color-mix(in srgb, var(--primary) 9%, var(--surface))); }
:root[data-theme="dark"] .tile--revision { background: linear-gradient(135deg, var(--surface) 55%, color-mix(in srgb, var(--warning) 7%, var(--surface))); }
:root[data-theme="dark"] .fill__bar { background: var(--surface-2); }
:root[data-theme="dark"] .fill__bar i + i { box-shadow: inset 2px 0 0 var(--surface); }
:root[data-theme="dark"] .s-free { background: repeating-linear-gradient(45deg, var(--border) 0 3px, var(--surface-2) 3px 6px); }
:root[data-theme="dark"] .spaced__line::before { background: repeating-linear-gradient(90deg, var(--border) 0 6px, transparent 6px 11px); }
:root[data-theme="dark"] .spaced__line b { background: var(--surface); }
:root[data-theme="dark"] .spaced__line b:first-child { background: var(--primary); }


/* ---- Exams ---- */
:root[data-theme="dark"] .exam--neet { --tone: #5fd39b; }
:root[data-theme="dark"] .exam--jee { --tone: #8db4ff; }
:root[data-theme="dark"] .exam--cuet { --tone: #b0a9ff; }
:root[data-theme="dark"] .exam--gate { --tone: #f3b06b; }
:root[data-theme="dark"] .exam__art { background: color-mix(in srgb, var(--tone) 12%, var(--surface)); }
:root[data-theme="dark"] .exam__chips li { background: color-mix(in srgb, var(--tone) 15%, transparent); }
@media (min-width: 641px) {
  /* Same sky as light; it fades in after the heading text so the copy stays on the page colour. */
  :root[data-theme="dark"] .exams-sec__sky {
    --cut: max(0px, var(--g) + 620px - (100cqw - min(1500px, 100cqw)));
    -webkit-mask-image: linear-gradient(90deg, transparent var(--cut), rgba(0, 0, 0, .08) calc(var(--cut) + 16px), rgba(0, 0, 0, .4) calc(var(--cut) + 32px), rgba(0, 0, 0, .82) calc(var(--cut) + 48px), #000 calc(var(--cut) + 64px)), linear-gradient(180deg, transparent 0, #000 6%, #000 54%, transparent 80%);
    mask-image: linear-gradient(90deg, transparent var(--cut), rgba(0, 0, 0, .08) calc(var(--cut) + 16px), rgba(0, 0, 0, .4) calc(var(--cut) + 32px), rgba(0, 0, 0, .82) calc(var(--cut) + 48px), #000 calc(var(--cut) + 64px)), linear-gradient(180deg, transparent 0, #000 6%, #000 54%, transparent 80%);
  }
}
@media (max-width: 640px) {
  /* Sky above the heading, fully faded before the heading starts. */
  :root[data-theme="dark"] .exams-sec__sky {
    /* Raised so the peaks, not the haze, sit in the space above the heading. */
    transform: translateY(-25%);
    -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 12%, #000 60%, rgba(0, 0, 0, .45) 68%, transparent 76%);
    mask-image: linear-gradient(180deg, transparent 0, #000 12%, #000 60%, rgba(0, 0, 0, .45) 68%, transparent 76%);
  }
}

/* ---- How it works ---- */
:root[data-theme="dark"] .step { border-color: var(--border); background: color-mix(in srgb, var(--surface) 60%, transparent); }

/* ---- Scenes ---- */
:root[data-theme="dark"] .scene__copy::before { content: none; }
@media (min-width: 1101px) {
  :root[data-theme="dark"] .scene { --F: min(100cqw, 1920px); }
  /* Practice: clear of the copy above, soft at the outer edges. */
  :root[data-theme="dark"] .scene--quiz .scene__art img {
    -webkit-mask-image: linear-gradient(180deg, transparent 0, transparent 10%, #000 19%, #000 90%, transparent 100%), linear-gradient(90deg, transparent 0, #000 3%, #000 72%, transparent 96%);
    mask-image: linear-gradient(180deg, transparent 0, transparent 10%, #000 19%, #000 90%, transparent 100%), linear-gradient(90deg, transparent 0, #000 3%, #000 72%, transparent 96%);
  }
  /* Plan: from under the week card to just before the copy. */
  :root[data-theme="dark"] .scene--plan .scene__art img {
    --end: calc(100cqw - var(--g) - 430px - ((100cqw - var(--F)) / 2 + var(--F) * .285) - 16px);
    -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 22%, #000 calc(var(--end) - 56px), rgba(0, 0, 0, .82) calc(var(--end) - 42px), rgba(0, 0, 0, .4) calc(var(--end) - 28px), rgba(0, 0, 0, .08) calc(var(--end) - 14px), transparent var(--end)), linear-gradient(180deg, transparent 0, #000 5%, #000 92%, transparent 100%);
    mask-image: linear-gradient(90deg, transparent 0, #000 22%, #000 calc(var(--end) - 56px), rgba(0, 0, 0, .82) calc(var(--end) - 42px), rgba(0, 0, 0, .4) calc(var(--end) - 28px), rgba(0, 0, 0, .08) calc(var(--end) - 14px), transparent var(--end)), linear-gradient(180deg, transparent 0, #000 5%, #000 92%, transparent 100%);
  }
  /* Pricing: the same wide scene, fading in after the copy. */
  :root[data-theme="dark"] .scene--price .scene__art img {
    --cut: calc(var(--g) + 553px + 16px - ((100cqw - var(--F)) / 2 + var(--F) * .12));
    -webkit-mask-image: linear-gradient(90deg, transparent var(--cut), rgba(0, 0, 0, .08) calc(var(--cut) + 18px), rgba(0, 0, 0, .4) calc(var(--cut) + 36px), rgba(0, 0, 0, .82) calc(var(--cut) + 54px), #000 calc(var(--cut) + 72px), #000 96%, transparent 100%), linear-gradient(180deg, transparent 0, #000 4%, #000 94%, transparent 100%);
    -webkit-mask-composite: source-in;
    mask-image: linear-gradient(90deg, transparent var(--cut), rgba(0, 0, 0, .08) calc(var(--cut) + 18px), rgba(0, 0, 0, .4) calc(var(--cut) + 36px), rgba(0, 0, 0, .82) calc(var(--cut) + 54px), #000 calc(var(--cut) + 72px), #000 96%, transparent 100%), linear-gradient(180deg, transparent 0, #000 4%, #000 94%, transparent 100%);
    mask-composite: intersect;
  }
}
/* Question card and week card. */
:root[data-theme="dark"] .opt { background: var(--surface-2); }
:root[data-theme="dark"] .opt b { background: var(--surface); }
:root[data-theme="dark"] .opt.is-picked.is-right, :root[data-theme="dark"] .qcard__fb { background: var(--success-soft); }
:root[data-theme="dark"] .opt.is-picked.is-wrong, :root[data-theme="dark"] .qcard__fb.is-wrong { background: var(--danger-soft); }
:root[data-theme="dark"] .opt.is-picked.is-right b { background: var(--success); color: var(--bg); }
:root[data-theme="dark"] .opt.is-picked.is-wrong b { background: var(--danger); color: var(--bg); }
:root[data-theme="dark"] :is(.qcard__why, .qcard__more) { color: var(--text); }
:root[data-theme="dark"] .qcard__more { background: var(--surface-2); }
:root[data-theme="dark"] .btn--soft { background: var(--primary-soft); border-color: color-mix(in srgb, var(--primary) 25%, transparent); }
:root[data-theme="dark"] .btn--soft:hover { background: color-mix(in srgb, var(--primary) 22%, var(--surface)); }
:root[data-theme="dark"] .seg { background: var(--surface-2); }
:root[data-theme="dark"] .seg__btn[aria-pressed="true"] { background: var(--surface); box-shadow: 0 0 0 1px var(--border); }
:root[data-theme="dark"] .wk__row { background: var(--surface-2); }
:root[data-theme="dark"] .wk__ring { background: conic-gradient(var(--c) calc(var(--p) * 360deg), var(--border) 0); }

/* ---- FAQ ---- */
:root[data-theme="dark"] .faqs__art {
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%), linear-gradient(180deg, transparent 0, #000 6%, #000 92%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%), linear-gradient(180deg, transparent 0, #000 6%, #000 92%, transparent 100%);
}
:root[data-theme="dark"] .faq__item[open] { border-color: color-mix(in srgb, var(--primary) 30%, var(--border)); box-shadow: 0 14px 30px -24px rgba(0, 0, 0, .6); }

/* Narrow phones: logo, theme, Get started and menu must share one row. */
@media (max-width: 400px) {
  .nav__inner { gap: 6px; }
  .nav__cta { gap: 6px; }
  .brand { font-size: 16px; gap: 6px; }
  .brand__logo { width: 28px; height: 28px; }
  .theme-btn { width: 36px; height: 36px; }
  .nav__cta .btn--primary { padding: 0 11px; }
  .menu__btn { width: 36px; }
}
@media (max-width: 350px) {
  .nav .brand { font-size: 0; }
}

/* Masked art: at fractional display scaling (125%, 150%) GPUs anti-alias the
   image's box edge separately from its mask, leaving a 1px hairline where the
   art meets the dark page. The art is fully faded at its edges, so clip them. */
:root[data-theme="dark"] :is(.hero__art img, .mentor__art, .scene__art img, .faqs__art) { clip-path: inset(2px); }
:root[data-theme="dark"] .exams-sec__sky { clip-path: inset(2px); }

/* Dark, stacked layouts: light mode's long fades melt into cream; on the night
   page they leave a thin strip, so stacked art uses short edges instead. */
@media (max-width: 1100px) {
  :root[data-theme="dark"] .scene .scene__art img {
    -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 7%, #000 93%, transparent 100%);
    mask-image: linear-gradient(180deg, transparent 0, #000 7%, #000 93%, transparent 100%);
  }
}
@media (max-width: 640px) {
  :root[data-theme="dark"] .hero__art img {
    -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 7%, #000 93%, transparent 100%);
    mask-image: linear-gradient(180deg, transparent 0, #000 7%, #000 93%, transparent 100%);
  }
}