/* Prepoch website. Tokens follow the app's final palette (9–10 Nov 2026). */
:root {
  --ink: #1D2B3D;
  --navy: #263F60;
  --navy-dark: #1C304B;
  --text-2: #5A6A80;
  --text-3: #8996A7;
  --page: #FFFFFF;
  --surface: #F6F8FB;
  --surface-2: #EEF2F7;
  --line: #E1E7EF;

  --reading: #80CCA3;
  --listening: #F18E7D;
  --writing: #D1E7F5;
  --speaking: #F6E69B;
  --vocabulary: #B49AF5;
  --grammar: #F8C1E2;
  --warmup: #F7CA91;
  --review: #E8F48A;

  --r-tile: 28px;
  --r-card: 20px;
  --wrap: 1120px;
  --gutter: 24px;
  --font: "Schibsted Grotesk", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
:focus-visible { outline: 3px solid #83B9EC; outline-offset: 3px; border-radius: 6px; }

.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--navy); color: #fff; padding: 10px 16px; border-radius: 999px; z-index: 100; }
.skip:focus { left: 16px; }

h1, h2, h3 { font-weight: 700; letter-spacing: -0.022em; line-height: 1.08; text-wrap: balance; }
h2 { font-size: clamp(30px, 4.2vw, 46px); }
h3 { font-size: 20px; letter-spacing: -0.012em; line-height: 1.25; }
.lede { font-size: clamp(17px, 1.6vw, 19px); color: var(--text-2); max-width: 34em; text-wrap: pretty; }
.small { font-size: 14px; color: var(--text-2); }

/* Buttons: the app's navy capsule. */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 22px;
  background: var(--navy); color: #fff;
  font: inherit; font-weight: 600; font-size: 16px; text-decoration: none; white-space: nowrap;
  border-radius: 999px;
  transition: background-color .15s ease;
}
.btn:hover { background: var(--navy-dark); }
.btn:active { background: #172940; }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-lg { min-height: 56px; padding: 0 28px; font-size: 17px; }
.btn-secondary { background: #EAF1F9; color: var(--navy); }
.btn-secondary:hover { background: #DCE8F5; }
.btn-secondary:active { background: #D0DFF0; }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: #EAF1F9; }
.link { font-weight: 600; color: var(--navy); text-underline-offset: 4px; text-decoration-thickness: 1.5px; }

/* Header */
.site-head { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .86); backdrop-filter: saturate(1.6) blur(14px); -webkit-backdrop-filter: saturate(1.6) blur(14px); border-bottom: 1px solid transparent; transition: border-color .2s ease; }
.site-head.scrolled { border-bottom-color: var(--line); }
.head-row { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; letter-spacing: -0.02em; text-decoration: none; color: var(--ink); }
.brand img { width: 26px; height: auto; }
.nav { display: flex; gap: 28px; margin-left: auto; }
.nav a { font-size: 15px; font-weight: 500; color: var(--text-2); text-decoration: none; padding: 8px 0; }
.nav a:hover { color: var(--ink); }
.site-head .btn { min-height: 40px; padding: 0 18px; font-size: 15px; }

/* Hero */
.hero { padding: clamp(40px, 7vw, 88px) 0 clamp(56px, 8vw, 104px); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero h1 { font-size: clamp(40px, 5.3vw, 66px); letter-spacing: -0.035em; line-height: 1.02; }
.hero h1 .quiet { display: block; color: var(--text-3); font-weight: 600; }
.hero .lede { margin-top: 24px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 24px; margin-top: 32px; }
.hero-note { margin-top: 18px; font-size: 14.5px; color: var(--text-2); }

/* The four sections as staggered arches. */
.stage { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; max-width: 560px; margin-inline: auto; width: 100%; padding-bottom: 40px; }
.arch { position: relative; aspect-ratio: 3 / 5.4; border-radius: 999px 999px 22px 22px; overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; padding: 0 6px 16px; }
.arch:nth-child(even) { transform: translateY(40px); }
.arch img { width: 108%; max-width: none; margin-bottom: 6px; }
.arch span { font-size: clamp(11px, 1.45vw, 14px); font-weight: 700; letter-spacing: -0.01em; color: var(--ink); background: rgba(255, 255, 255, .62); padding: 5px 10px; border-radius: 999px; }
.arch.t-reading { background: var(--reading); }
.arch.t-listening { background: var(--listening); }
.arch.t-writing { background: var(--writing); }
.arch.t-speaking { background: var(--speaking); }

.phone { border-radius: 9% / 4.4%; overflow: hidden; background: #fff; box-shadow: 0 0 0 1px rgba(29, 43, 61, .10), 0 30px 60px -22px rgba(29, 43, 61, .38), 0 12px 24px -14px rgba(29, 43, 61, .22); }
.phone img { width: 100%; }

@media (prefers-reduced-motion: no-preference) {
  .arch { animation: arch-in .7s cubic-bezier(.2, .8, .2, 1) both; }
  .arch:nth-child(2) { animation-delay: .06s; }
  .arch:nth-child(3) { animation-delay: .12s; }
  .arch:nth-child(4) { animation-delay: .18s; }
  @keyframes arch-in { from { opacity: 0; translate: 0 16px; } to { opacity: 1; translate: 0 0; } }
}
}

/* Sections */
.block { padding: clamp(56px, 8vw, 104px) 0; }
.block-tint { background: var(--surface); }
.block-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px 56px; align-items: end; margin-bottom: clamp(28px, 4vw, 48px); }
.block-head .lede { justify-self: end; }

.subhead { font-size: 15px; font-weight: 600; color: var(--text-2); margin: 0 0 14px; letter-spacing: 0; }
.subhead + .tiles { margin-bottom: 36px; }
.tiles { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 16px; }
.tile-card { position: relative; overflow: hidden; border-radius: var(--r-tile); padding: 30px 30px 32px; min-height: 320px; display: flex; flex-direction: column; color: var(--ink); }
.tile-card h3 { font-size: clamp(26px, 2.8vw, 34px); letter-spacing: -0.025em; line-height: 1.05; }
.tile-card p { margin-top: 10px; max-width: 19em; font-size: 16px; line-height: 1.45; color: rgba(29, 43, 61, .86); }
.tile-card .tasks { margin-top: auto; padding-top: 28px; max-width: 58%; font-size: 15px; font-weight: 600; line-height: 1.3; position: relative; z-index: 1; }
.tile-card .tasks li { padding: 9px 0; border-top: 1px solid rgba(29, 43, 61, .16); }
.tile-card .art { position: absolute; right: -8px; bottom: -6px; width: min(46%, 250px); pointer-events: none; }
.span-7 { grid-column: span 7; } .span-5 { grid-column: span 5; } .span-6 { grid-column: span 6; }
.span-7 .art { width: min(44%, 280px); }
.c-reading { background: var(--reading); } .c-listening { background: var(--listening); }
.c-writing { background: var(--writing); } .c-speaking { background: var(--speaking); }
.c-vocabulary { background: var(--vocabulary); } .c-grammar { background: var(--grammar); }
.c-reading .art { bottom: -22px; }
.c-writing .art { right: -34px; bottom: -4px; width: min(52%, 270px); }
.c-vocabulary .art { bottom: -30px; }

/* Screens: the App Store set, scrolled sideways. */
.gallery { display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 8px var(--gutter) 28px; margin-inline: calc(-1 * var(--gutter)); scrollbar-width: thin; scrollbar-color: #CBD5E1 transparent; }
.shot { flex: 0 0 min(72vw, 264px); scroll-snap-align: center; border-radius: var(--r-tile); padding: 26px 20px 0; overflow: hidden; display: flex; flex-direction: column; }
.shot figcaption { font-size: 19px; font-weight: 700; letter-spacing: -0.015em; line-height: 1.18; text-align: center; min-height: 3.6em; text-wrap: balance; }
.shot .phone { margin-top: 14px; border-radius: 26px 26px 0 0; box-shadow: 0 0 0 1px rgba(29, 43, 61, .08), 0 18px 34px -18px rgba(29, 43, 61, .35); max-height: 400px; }
.s-review { background: var(--review); } .s-warmup { background: var(--warmup); }
.s-reading { background: var(--reading); } .s-listening { background: var(--listening); }
.s-writing { background: var(--writing); } .s-speaking { background: var(--speaking); }
.s-vocabulary { background: var(--vocabulary); } .s-grammar { background: var(--grammar); }

/* Feedback */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 88px); align-items: center; }
.points { margin-top: 32px; display: grid; gap: 0; }
.point { padding: 20px 0; border-top: 1px solid var(--line); }
.point:last-child { border-bottom: 1px solid var(--line); }
.point p { margin-top: 6px; color: var(--text-2); font-size: 16px; max-width: 30em; }
.duo { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; background: var(--surface-2); border-radius: var(--r-tile); padding: 36px 28px 0; overflow: hidden; max-height: 500px; }
.duo .phone { border-radius: 26px 26px 0 0; }
.duo .phone:last-child { margin-top: 44px; }

/* A day with Prepoch: a real sequence, so it is numbered. */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; counter-reset: step; }
.steps li { counter-increment: step; background: #fff; border: 1px solid var(--line); border-radius: var(--r-card); padding: 26px 26px 28px; }
.steps li::before { content: counter(step); display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--navy); color: #fff; font-weight: 700; font-size: 16px; margin-bottom: 20px; }
.steps p { margin-top: 8px; color: var(--text-2); font-size: 16px; }

/* Band scale: six rising bars, like the level marks in the app. */
.scale { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; align-items: end; height: 300px; margin-top: 8px; }
.band { position: relative; height: calc(26% + var(--n) * 12.3%); border-radius: 16px 16px 6px 6px; background: var(--surface-2); padding: 14px 16px; display: flex; flex-direction: column; justify-content: space-between; }
.band b { font-size: clamp(26px, 3.4vw, 40px); font-weight: 700; letter-spacing: -0.03em; line-height: 1; }
.band span { font-size: 14px; font-weight: 600; color: var(--text-2); }
.band.is-target { background: var(--navy); color: #fff; }
.band.is-target span { color: #CFE0F7; }
.band.is-target::before { content: "Your target"; position: absolute; left: 0; right: 0; top: -30px; text-align: center; font-size: 14px; font-weight: 600; color: var(--navy); }
.scale-note { margin-top: 18px; }

/* Free */
.free { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px 48px; align-items: center; background: var(--review); border-radius: var(--r-tile); padding: clamp(28px, 5vw, 56px); }
.free p { margin-top: 14px; max-width: 36em; font-size: 17px; color: rgba(29, 43, 61, .88); }

/* FAQ */
.faq { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.6fr); gap: 24px 56px; align-items: start; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 20px; align-items: center; padding: 20px 0; font-weight: 600; font-size: 18px; letter-spacing: -0.01em; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: ""; flex: none; width: 12px; height: 12px; border-right: 2px solid var(--navy); border-bottom: 2px solid var(--navy); transform: rotate(45deg) translate(-3px, -3px); transition: transform .2s ease; }
.faq-list details[open] summary::after { transform: rotate(-135deg) translate(-3px, -3px); }
.faq-list details p { padding: 0 40px 22px 0; color: var(--text-2); max-width: 42em; }
.faq-list a { color: var(--navy); font-weight: 600; text-underline-offset: 3px; }

/* Closing */
.closing { position: relative; overflow: hidden; background: var(--navy); color: #fff; border-radius: var(--r-tile); padding: clamp(40px, 7vw, 84px) clamp(28px, 6vw, 72px); display: grid; gap: 28px; justify-items: start; }
.closing h2 { max-width: 12em; }
.closing img { position: absolute; right: clamp(-40px, 2vw, 40px); bottom: -24px; width: min(34%, 300px); pointer-events: none; }

/* Footer */
.site-foot { margin-top: clamp(56px, 8vw, 104px); border-top: 1px solid var(--line); padding: 48px 0 40px; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 32px; }
.site-foot h2 { font-size: 14px; font-weight: 600; letter-spacing: 0; color: var(--text-2); margin-bottom: 12px; }
.site-foot li { margin: 8px 0; }
.site-foot li a { font-size: 15px; text-decoration: none; overflow-wrap: anywhere; }
.site-foot li a:hover { text-decoration: underline; text-underline-offset: 3px; }
.foot-note { margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 13px; color: var(--text-2); max-width: none; }

/* Document pages: privacy, terms, support */
.doc { max-width: 760px; margin-inline: auto; padding: clamp(40px, 6vw, 72px) var(--gutter) 24px; }
.doc h1 { font-size: clamp(36px, 5vw, 52px); letter-spacing: -0.03em; }
.doc .meta { margin-top: 14px; color: var(--text-2); font-size: 16px; }
.doc h2 { font-size: 24px; letter-spacing: -0.015em; line-height: 1.2; margin-top: 48px; }
.doc h3 { font-size: 18px; margin-top: 28px; }
.doc p { margin-top: 14px; }
.doc ul, .doc ol { margin-top: 12px; padding-left: 22px; }
.doc ul { list-style: disc; } .doc ol { list-style: decimal; }
.doc li { margin: 8px 0; }
.doc li::marker { color: var(--text-3); }
.doc a { color: var(--navy); font-weight: 600; text-underline-offset: 3px; }
.doc table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: 15.5px; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.doc th { background: var(--surface); font-weight: 600; }
.summary-box, .contact-box { margin-top: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-card); padding: 24px 26px 26px; }
.summary-box h2, .contact-box h2 { margin-top: 0; font-size: 20px; }
.contact-box .btn { margin-top: 18px; color: #fff; font-weight: 600; }
.doc .faq-list { margin-top: 18px; }
.doc .faq-list details p { margin-top: 0; }

/* Narrow screens */
@media (max-width: 900px) {
  .hero-grid, .split, .faq, .block-head { grid-template-columns: minmax(0, 1fr); }
  .block-head .lede { justify-self: start; }
  .stage { max-width: 460px; }
  .span-7, .span-5, .span-6 { grid-column: span 12; }
  .tile-card { min-height: 280px; }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .free { grid-template-columns: minmax(0, 1fr); }
  .foot-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .foot-grid > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  :root { --gutter: 18px; --r-tile: 22px; }
  .nav { display: none; }
  .site-head .btn { margin-left: auto; }
  .hero h1 { font-size: clamp(40px, 12vw, 56px); }
  .tile-card { padding: 24px 22px 26px; }
  .tile-card .tasks { max-width: 62%; font-size: 14.5px; }
  .scale { gap: 6px; height: 240px; }
  .band { padding: 10px 8px; border-radius: 12px 12px 4px 4px; }
  .band span { font-size: 12.5px; }
  .band.is-target::before { font-size: 12px; white-space: nowrap; left: -20px; right: -20px; }
  .duo { padding: 24px 16px 0; gap: 12px; max-height: 340px; }
  .duo .phone { border-radius: 18px 18px 0 0; }
  .closing { padding-bottom: 150px; }
  .closing img { width: 150px; right: 8px; bottom: -14px; }
  .closing h2 { max-width: 9em; }
}