:root {
  --primary: #008f81;
  --primary-dark: #004f4a;
  --accent: #46e0c1;
  --ink: #102622;
  --muted: #687773;
  --surface: #ffffff;
  --soft: #f3f8f7;
  --line: #dfe9e6;
  --shadow: 0 18px 50px rgba(5, 60, 53, .12);
  --radius: 24px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--surface);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
code { background:#e7f3f0; padding:.12rem .42rem; border-radius:7px; color:#006d62; font-weight:700; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(0, 55, 51, .94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.nav-wrap { min-height: 76px; display:flex; align-items:center; justify-content:space-between; gap:24px; }
.brand { display:inline-flex; align-items:center; gap:12px; color:#fff; }
.brand-icon { width:46px; height:46px; border-radius:12px; box-shadow:0 8px 22px rgba(0,0,0,.25); }
.brand span { display:grid; line-height:1.06; }
.brand strong { font-size:15px; }
.brand small { color:#76efd7; font-weight:800; margin-top:4px; }
.nav { display:flex; align-items:center; gap:24px; }
.nav > a { color:rgba(255,255,255,.86); font-size:14px; font-weight:700; }
.nav > a:hover { color:#fff; }
.nav-downloads { display:flex; gap:8px; }
.store-pill {
  display:flex; align-items:center; gap:7px; padding:9px 12px;
  border-radius:999px; border:1px solid rgba(255,255,255,.25);
  color:#fff; font-size:12px; font-weight:800;
}
.store-pill:hover { background:rgba(255,255,255,.08); }
.apple-symbol { font-size:17px; line-height:1; }
.store-icon { font-size:11px; color:#62efcf; }
.menu-button { display:none; border:0; background:transparent; padding:8px; }
.menu-button span { display:block; width:25px; height:2px; background:#fff; margin:5px 0; }

.hero {
  position:relative; overflow:hidden;
  background:
    radial-gradient(circle at 65% 45%, rgba(40,224,185,.22), transparent 32%),
    linear-gradient(135deg,#003c38 0%,#005b55 50%,#002d2b 100%);
  color:#fff; padding:90px 0 72px;
}
.hero:after {
  content:""; position:absolute; inset:0; pointer-events:none;
  background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size:22px 22px; mask-image:linear-gradient(90deg,#000,transparent 75%);
}
.hero-grid { position:relative; z-index:2; display:grid; grid-template-columns:1.05fr .95fr; align-items:center; gap:70px; }
.eyebrow,.section-heading > span,.light-eyebrow {
  display:inline-block; text-transform:uppercase; letter-spacing:.16em;
  font-weight:900; font-size:12px; color:#6cf1d4;
}
.hero h1 { font-size:clamp(42px,6vw,74px); line-height:1.02; margin:16px 0 22px; max-width:720px; }
.hero h1 span { color:#77f0d7; }
.hero-text { max-width:650px; font-size:19px; color:rgba(255,255,255,.84); margin-bottom:30px; }
.download-buttons { display:flex; flex-wrap:wrap; gap:14px; margin:28px 0 24px; }
.download-buttons.compact { margin:22px 0 0; }
.store-button {
  display:flex; align-items:center; gap:13px; min-width:190px; padding:11px 16px;
  border-radius:12px; background:#0c0c0c; color:#fff;
  border:1px solid rgba(255,255,255,.22); box-shadow:0 10px 28px rgba(0,0,0,.22);
  transition:transform .2s ease, box-shadow .2s ease;
}
.store-button:hover { transform:translateY(-2px); box-shadow:0 14px 34px rgba(0,0,0,.28); }
.store-button small { display:block; font-size:9px; letter-spacing:.08em; line-height:1.1; opacity:.85; }
.store-button strong { display:block; font-size:19px; line-height:1.15; margin-top:2px; }
.store-logo { width:34px; text-align:center; font-size:30px; line-height:1; }
.play-logo { color:#61e5c5; font-size:24px; }
.apple-logo { color:#fff; font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
.hero-points { display:flex; flex-wrap:wrap; gap:18px; color:#bff7eb; font-weight:700; font-size:14px; }
.hero-visual { position:relative; display:grid; place-items:center; min-height:550px; }
.glow { position:absolute; width:440px; height:440px; border-radius:50%; background:rgba(27,239,196,.18); filter:blur(42px); }
.phone {
  position:relative; width:min(380px,88%); background:#101010; border:9px solid #171717;
  border-radius:42px; overflow:hidden; box-shadow:0 36px 70px rgba(0,0,0,.4);
  transform:rotate(2deg);
}
.phone img { width:100%; height:auto; }

.feature-strip { background:#fff; border-bottom:1px solid var(--line); }
.feature-strip-grid { display:grid; grid-template-columns:repeat(4,1fr); }
.feature-strip-grid div { padding:27px 22px; border-right:1px solid var(--line); }
.feature-strip-grid div:last-child { border-right:0; }
.feature-strip-grid strong { display:block; margin-bottom:4px; color:#006e64; }
.feature-strip-grid span { color:var(--muted); font-size:14px; }

.section { padding:90px 0; }
.section.alt { background:var(--soft); }
.section-heading { text-align:center; max-width:760px; margin:0 auto 46px; }
.section-heading.left { text-align:left; margin:0 0 36px; }
.section-heading h2 { font-size:clamp(30px,4vw,46px); line-height:1.1; margin:10px 0 12px; }
.section-heading p { color:var(--muted); font-size:17px; margin:0; }
.cards { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.card { padding:28px; border:1px solid var(--line); border-radius:20px; background:#fff; box-shadow:0 12px 30px rgba(18,55,49,.06); }
.card-icon { width:50px; height:50px; border-radius:50%; display:grid; place-items:center; background:linear-gradient(145deg,#008f81,#005f58); color:#fff; font-size:23px; margin-bottom:18px; }
.card h3 { margin:0 0 7px; font-size:18px; }
.card p { margin:0; color:var(--muted); font-size:14px; }

.split { display:grid; grid-template-columns:1fr .82fr; gap:70px; align-items:center; }
.examples { display:grid; gap:12px; }
.example { display:flex; align-items:center; gap:18px; padding:16px 18px; border-radius:14px; background:#fff; border:1px solid var(--line); }
.example code { min-width:84px; text-align:center; font-size:16px; }
.example span { color:var(--muted); font-size:14px; }
.screenshot-card { max-width:430px; justify-self:center; background:#fff; border:1px solid var(--line); padding:12px; border-radius:28px; box-shadow:var(--shadow); overflow:hidden; }
.screenshot-card img { border-radius:20px; }

.dark-section { background:linear-gradient(135deg,#003d38,#005e56); color:#fff; }
.offline-grid { display:grid; grid-template-columns:270px 1fr; align-items:center; gap:70px; }
.offline-icon { width:240px; border-radius:36px; box-shadow:0 28px 60px rgba(0,0,0,.3); }
.dark-section h2 { font-size:clamp(34px,5vw,54px); margin:8px 0 14px; }
.dark-section p { max-width:720px; font-size:18px; color:rgba(255,255,255,.8); }
.light-eyebrow { color:#6ef1d4; }

.preview-banner { border-radius:26px; overflow:hidden; box-shadow:var(--shadow); border:1px solid var(--line); background:#062f2c; }
.preview-banner img { width:100%; }

.download-section { padding:0 0 90px; }
.download-box {
  background:#ecf8f5; border:1px solid #cee9e3; border-radius:28px; padding:36px 40px;
  display:flex; justify-content:space-between; align-items:center; gap:30px;
}
.download-box span { color:#00796e; font-size:13px; font-weight:900; text-transform:uppercase; letter-spacing:.12em; }
.download-box h2 { margin:5px 0 0; font-size:28px; max-width:650px; }

footer { background:#072c29; color:#fff; padding:44px 0 30px; }
.footer-wrap { display:grid; grid-template-columns:1fr auto; align-items:center; gap:28px; }
.footer-brand { display:flex; align-items:center; gap:13px; }
.footer-brand img { width:48px; height:48px; border-radius:13px; }
.footer-brand div { display:grid; }
.footer-brand small { color:#8fdccd; margin-top:2px; }
.footer-links { display:flex; flex-wrap:wrap; gap:20px; color:#b7d8d1; font-size:14px; font-weight:700; }
.copyright { grid-column:1/-1; border-top:1px solid rgba(255,255,255,.1); margin:4px 0 0; padding-top:22px; color:#8fb5ae; font-size:13px; }

@media (max-width: 980px) {
  .menu-button { display:block; }
  .nav {
    display:none; position:absolute; top:76px; left:0; right:0; padding:20px;
    background:#063b37; flex-direction:column; align-items:stretch; gap:4px;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  .nav.open { display:flex; }
  .nav > a { padding:12px; }
  .nav-downloads { margin-top:8px; }
  .store-pill { flex:1; justify-content:center; }
  .hero-grid,.split { grid-template-columns:1fr; }
  .hero-copy { text-align:center; }
  .hero-text { margin-left:auto; margin-right:auto; }
  .download-buttons,.hero-points { justify-content:center; }
  .hero-visual { min-height:auto; padding-top:30px; }
  .phone { width:min(360px,72vw); }
  .feature-strip-grid { grid-template-columns:repeat(2,1fr); }
  .cards { grid-template-columns:repeat(2,1fr); }
  .offline-grid { grid-template-columns:1fr; text-align:center; }
  .offline-icon { margin:0 auto; }
  .dark-section p { margin-left:auto; margin-right:auto; }
  .download-box { flex-direction:column; text-align:center; }
}

@media (max-width: 640px) {
  .container { width:min(100% - 28px,1160px); }
  .hero { padding-top:58px; }
  .hero h1 { font-size:42px; }
  .hero-text { font-size:16px; }
  .store-button { min-width:0; width:100%; max-width:270px; justify-content:flex-start; }
  .feature-strip-grid,.cards { grid-template-columns:1fr; }
  .feature-strip-grid div { border-right:0; border-bottom:1px solid var(--line); }
  .section { padding:68px 0; }
  .example { align-items:flex-start; flex-direction:column; gap:7px; }
  .example code { min-width:0; }
  .offline-icon { width:180px; }
  .download-box { padding:28px 20px; }
  .footer-wrap { grid-template-columns:1fr; }
  .footer-links { justify-content:flex-start; }
}