:root {
  --ink: #071a3e;
  --ink-soft: #314260;
  --paper: #f7f3e8;
  --paper-deep: #eee8d8;
  --mint: #72e5b5;
  --mint-dark: #2b9c75;
  --gold: #ffc857;
  --blue: #6794ff;
  --line: rgba(7, 26, 62, .14);
  --white: #fffdf7;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.site-header,
footer {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header { height: 88px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 22px; font-weight: 850; letter-spacing: -.04em; }
.brand img { border-radius: 12px; box-shadow: 0 8px 24px rgba(7, 26, 62, .12); }
.site-header nav,
footer nav { display: flex; gap: 30px; font-size: 14px; font-weight: 650; }
.site-header nav a,
footer nav a { transition: color .2s ease; }
.site-header nav a:hover,
footer nav a:hover { color: var(--mint-dark); }

.hero {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  min-height: 690px;
  display: grid;
  grid-template-columns: .88fr 1.12fr;
  align-items: center;
  gap: 70px;
  padding: 72px 0 92px;
}

.eyebrow {
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: 12px;
  font-weight: 800;
  color: var(--mint-dark);
}
.eyebrow span { width: 28px; height: 2px; background: currentColor; }
.hero h1,
.support-hero h1 {
  margin: 0;
  max-width: 660px;
  font-size: clamp(54px, 6.8vw, 88px);
  line-height: .98;
  letter-spacing: -.075em;
  font-weight: 850;
}
.hero h1 em { color: var(--mint-dark); font-style: normal; }
.hero-lead {
  max-width: 550px;
  margin: 30px 0 0;
  font-size: 18px;
  line-height: 1.8;
  color: var(--ink-soft);
}
.hero-actions { display: flex; gap: 12px; margin-top: 34px; flex-wrap: wrap; }
.button {
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 750;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: var(--ink); box-shadow: 0 10px 25px rgba(7, 26, 62, .18); }
.button-primary:hover { box-shadow: 0 14px 32px rgba(7, 26, 62, .25); }
.button-secondary { background: transparent; }
.button-secondary:hover { background: var(--white); }
.availability { margin: 22px 0 0; font-size: 12px; color: #68748a; }

.product-scene {
  position: relative;
  min-height: 510px;
  border-radius: 34px;
  background: var(--ink);
  box-shadow: 0 30px 70px rgba(7, 26, 62, .22);
  overflow: visible;
}
.video-card {
  position: absolute;
  inset: 24px 174px 24px 24px;
  border-radius: 22px;
  overflow: hidden;
  background:
    radial-gradient(circle at 68% 35%, rgba(103, 148, 255, .75), transparent 26%),
    linear-gradient(135deg, #183666, #07152f 62%);
}
.video-topline { height: 44px; display: flex; align-items: center; gap: 7px; padding: 0 16px; background: rgba(0, 0, 0, .24); }
.video-topline span { width: 7px; height: 7px; border-radius: 50%; background: rgba(255, 255, 255, .5); }
.play-mark {
  position: absolute;
  top: 43%; left: 48%;
  width: 78px; height: 78px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .92);
  transform: translate(-50%, -50%);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .18);
}
.play-mark::after {
  content: "";
  position: absolute;
  top: 23px; left: 31px;
  border-top: 16px solid transparent;
  border-bottom: 16px solid transparent;
  border-left: 24px solid var(--ink);
}
.caption-card { position: absolute; left: 26px; right: 26px; bottom: 54px; padding: 13px 15px; border-radius: 12px; color: white; background: rgba(4, 12, 29, .8); backdrop-filter: blur(8px); }
.caption-card p { margin: 0; font-size: 12px; line-height: 1.55; }
.caption-card p + p { margin-top: 3px; color: #c6d3e9; }
.video-progress { position: absolute; left: 22px; right: 22px; bottom: 24px; height: 3px; background: rgba(255, 255, 255, .2); }
.video-progress span { display: block; width: 42%; height: 100%; background: var(--gold); }
.companion-card {
  position: absolute;
  top: 46px; right: 26px; bottom: 46px;
  width: 270px;
  padding: 18px;
  border-radius: 20px;
  color: #e7edf9;
  background: #0e234c;
  border: 1px solid rgba(255, 255, 255, .12);
  box-shadow: -18px 18px 40px rgba(0, 0, 0, .22);
}
.companion-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 13px; border-bottom: 1px solid rgba(255, 255, 255, .11); }
.companion-head strong { font-size: 17px; }
.companion-head span { font-size: 9px; letter-spacing: .08em; color: #91a1bb; }
.sentence { position: relative; margin-top: 14px; padding: 12px; border-radius: 12px; }
.sentence p, .sentence small { display: block; margin: 0; font-size: 11px; line-height: 1.55; }
.sentence small { margin-top: 5px; color: #9cabbe; }
.sentence.muted { opacity: .58; }
.sentence.active { border: 1px solid var(--blue); background: rgba(103, 148, 255, .12); }
.sentence mark { padding: 0 3px; border-radius: 4px; color: white; }
.level-one { background: #3e78c9; }
.level-two { background: #864dba; }
.time { display: block; margin-top: 6px; color: #83a8ff; font-size: 9px; }
.floating-chip { position: absolute; padding: 10px 14px; border-radius: 999px; font-size: 11px; font-weight: 800; box-shadow: 0 12px 28px rgba(7, 26, 62, .22); }
.chip-one { right: 70px; bottom: -20px; color: var(--ink); background: var(--gold); transform: rotate(-3deg); }
.chip-two { top: 14px; right: -20px; color: var(--ink); background: var(--mint); transform: rotate(4deg); }

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--line);
  background: rgba(255, 253, 247, .62);
}
.trust-strip p { margin: 0; padding: 27px 5vw; display: flex; flex-direction: column; gap: 5px; border-right: 1px solid var(--line); }
.trust-strip p:last-child { border-right: 0; }
.trust-strip strong { font-size: 14px; }
.trust-strip span { color: #718096; font-size: 12px; }

.section { width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: 130px 0; }
.section-heading { max-width: 700px; margin-bottom: 54px; }
.section-heading h2,
.privacy-section h2,
.closing h2,
.support-note h2 {
  margin: 0;
  font-size: clamp(38px, 5vw, 66px);
  line-height: 1.08;
  letter-spacing: -.055em;
}
.section-heading > p:last-child { margin: 20px 0 0; color: var(--ink-soft); font-size: 17px; line-height: 1.7; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.feature-card { position: relative; min-height: 330px; padding: 36px; overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: rgba(255, 253, 247, .78); }
.feature-card h3 { max-width: 480px; margin: 62px 0 12px; font-size: 27px; letter-spacing: -.035em; }
.feature-card > p { max-width: 500px; margin: 0; color: var(--ink-soft); line-height: 1.7; }
.feature-number { position: absolute; top: 28px; left: 36px; color: var(--mint-dark); font: 800 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.feature-wide { grid-column: span 2; min-height: 360px; }
.mini-transcript { position: absolute; right: 34px; bottom: 30px; width: min(44%, 450px); display: flex; flex-direction: column; gap: 7px; padding: 20px; border-radius: 16px; background: var(--ink); color: white; font-size: 12px; }
.mini-transcript span { padding: 10px 12px; border-radius: 8px; }
.mini-transcript .is-past { opacity: .45; }
.mini-transcript .is-current { border: 1px solid var(--blue); background: rgba(103, 148, 255, .13); }
.mini-transcript .is-translation { padding-top: 3px; color: #aab8ce; }
.word-levels { position: absolute; right: 28px; bottom: 30px; display: flex; align-items: flex-end; gap: 7px; }
.word-levels span { padding: 7px 9px; border-radius: 8px; color: white; background: #3e78c9; font-size: 11px; font-weight: 700; }
.word-levels span:nth-child(2) { background: #864dba; transform: translateY(-12px); }
.word-levels span:nth-child(3) { background: #be4d6c; transform: translateY(-24px); }
.review-stamp { position: absolute; right: 28px; bottom: 28px; width: 92px; height: 92px; border: 1px solid var(--ink); border-radius: 50%; display: grid; place-content: center; text-align: center; transform: rotate(-8deg); font-size: 11px; line-height: 1.3; }
.review-stamp strong { font-size: 17px; }
.feature-dark { color: white; background: var(--ink); }
.feature-dark > p { color: #b8c4d8; }
.feature-dark .feature-number { color: var(--mint); }
.optional-badge { position: absolute; right: 28px; bottom: 28px; padding: 9px 12px; border: 1px solid rgba(255, 255, 255, .25); border-radius: 999px; color: var(--mint); font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }

.workflow { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; border-top: 1px solid var(--line); }
.section-heading.compact { margin: 0; }
.steps { margin: 0; padding: 0; list-style: none; }
.steps li { display: grid; grid-template-columns: 50px 1fr; gap: 18px; padding: 25px 0; border-bottom: 1px solid var(--line); }
.steps li:first-child { padding-top: 0; }
.steps > li > span { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; color: white; background: var(--ink); font: 700 12px/1 ui-monospace, monospace; }
.steps strong { font-size: 18px; }
.steps p { margin: 7px 0 0; color: var(--ink-soft); line-height: 1.6; }

.privacy-section,
.support-note { padding: 110px max(24px, calc((100vw - 1180px) / 2)); display: grid; grid-template-columns: 1fr 1fr; gap: 90px; color: white; background: var(--ink); }
.eyebrow.light { color: var(--mint); }
.privacy-copy p,
.support-note > div:last-child p { margin: 42px 0 26px; color: #bdc7d8; font-size: 17px; line-height: 1.8; }
.privacy-copy a,
.support-note a { color: var(--mint); font-weight: 750; }
.privacy-copy a span { display: inline-block; margin-left: 5px; transition: transform .2s ease; }
.privacy-copy a:hover span { transform: translateX(4px); }

.closing { min-height: 570px; padding: 120px 24px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.closing img { border-radius: 20px; box-shadow: 0 18px 40px rgba(7, 26, 62, .15); }
.closing p { margin: 28px 0 6px; color: var(--ink-soft); }
.closing h2 { font-size: clamp(70px, 11vw, 144px); }
.closing .button { margin-top: 26px; }

footer { min-height: 120px; border-top: 1px solid var(--line); }
.footer-brand { font-size: 17px; }
footer > p { color: #7b8799; font-size: 11px; text-transform: uppercase; letter-spacing: .12em; }

.support-main { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.support-hero { max-width: 850px; padding: 110px 0 100px; }
.support-hero > p:not(.eyebrow) { max-width: 650px; margin: 30px 0; color: var(--ink-soft); font-size: 18px; line-height: 1.8; }
.support-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line); }
.support-grid article { min-height: 280px; padding: 40px; border-right: 1px solid var(--line); }
.support-grid article:last-child { border-right: 0; }
.support-grid article > span { color: var(--mint-dark); font: 800 12px/1 ui-monospace, monospace; }
.support-grid h2 { margin: 60px 0 12px; font-size: 22px; letter-spacing: -.03em; }
.support-grid p { margin: 0; color: var(--ink-soft); line-height: 1.7; }
.support-note { width: 100vw; margin-left: calc(50% - 50vw); margin-top: 120px; }

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; gap: 50px; }
  .hero-copy { max-width: 720px; }
  .product-scene { min-height: 520px; }
  .feature-card { min-height: 360px; }
  .workflow { grid-template-columns: 1fr; gap: 50px; }
  .privacy-section, .support-note { grid-template-columns: 1fr; gap: 20px; }
  .privacy-copy p, .support-note > div:last-child p { margin-top: 10px; }
  .support-grid { grid-template-columns: 1fr; }
  .support-grid article { min-height: 220px; border-right: 0; border-bottom: 1px solid var(--line); }
  .support-grid article:last-child { border-bottom: 0; }
  .support-grid h2 { margin-top: 38px; }
}

@media (max-width: 680px) {
  .site-header, footer, .hero, .section, .support-main { width: min(100% - 30px, 1180px); }
  .site-header { height: 72px; }
  .site-header nav { gap: 16px; }
  .site-header nav a:first-child { display: none; }
  .hero { min-height: 0; padding: 70px 0; }
  .hero h1, .support-hero h1 { font-size: clamp(48px, 15vw, 68px); }
  .hero-lead { font-size: 16px; }
  .product-scene { min-height: 470px; border-radius: 24px; }
  .video-card { inset: 18px 70px 120px 18px; }
  .companion-card { top: 130px; right: 18px; bottom: 18px; width: 235px; }
  .floating-chip { display: none; }
  .trust-strip { grid-template-columns: 1fr; }
  .trust-strip p { padding: 22px 24px; border-right: 0; border-bottom: 1px solid var(--line); }
  .trust-strip p:last-child { border-bottom: 0; }
  .section { padding: 90px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-wide { grid-column: auto; }
  .feature-card { min-height: 390px; padding: 28px; }
  .feature-number { left: 28px; }
  .mini-transcript { left: 28px; right: 28px; bottom: 28px; width: auto; }
  .privacy-section, .support-note { padding: 80px 24px; }
  .closing { min-height: 500px; }
  footer { padding: 32px 0; flex-wrap: wrap; gap: 20px; }
  footer > p { order: 3; width: 100%; }
  footer nav { gap: 16px; }
  .support-hero { padding: 80px 0; }
  .support-grid article { padding: 30px 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}