:root {
  color-scheme: light;
  --bg: #edf3f9;
  --paper: #f7fbff;
  --paper-2: #ffffff;
  --ink: #091226;
  --ink-soft: rgba(9, 18, 38, 0.72);
  --line: rgba(9, 18, 38, 0.1);
  --dark: #08111f;
  --dark-2: #101c2d;
  --cream: #f5fbff;
  --primary: #1f7dff;
  --primary-2: #39a0ff;
  --primary-3: #78caff;
  --cyan: #69d6ff;
  --cyan-2: #b9ebff;
  --teal: #42c8ff;
  --radius-xl: 34px;
  --radius-card: 24px;
  --shadow: 0 18px 40px rgba(13, 36, 81, 0.08);
  --shadow-strong: 0 36px 80px rgba(5, 16, 42, 0.28);
  --font-body: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Syne', var(--font-body);
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(105,214,255,.18), transparent 20%),
    linear-gradient(180deg, #f5faff 0%, var(--bg) 100%);
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.skip-link {
  position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip-link:focus {
  left: 20px; top: 20px; width: auto; height: auto; padding: 12px 16px; border-radius: 12px;
  background: var(--paper-2); box-shadow: var(--shadow); z-index: 9999;
}
.page-shell { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }
.topbar {
  position: sticky; top: 16px; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  margin-top: 18px; padding: 14px 16px; border-radius: 999px;
  border: 1px solid rgba(9,18,38,.08);
  background: rgba(255,255,255,.86); backdrop-filter: blur(18px);
  box-shadow: 0 14px 40px rgba(13,36,81,.08);
}
.brand {
  display: inline-flex; align-items: center; gap: 12px; text-decoration: none; min-width: 0;
}
.brand__logo {
  width: 130px;
  height: auto;
  object-fit: contain;
}
.brand__text {
  display: grid;
  gap: 2px;
  min-width: 0;
}
.brand__text strong { font-size: .92rem; letter-spacing: -.02em; }
.brand__text span { color: var(--ink-soft); font-size: .7rem; }
.nav { display: inline-flex; align-items: center; gap: 18px; }
.nav a {
  color: var(--ink-soft); text-decoration: none; font-size: .74rem; font-weight: 700;
}
.nav a:hover { color: var(--primary); }
.button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px;
  padding: 12px 18px; border-radius: 999px; border: 1px solid transparent;
  background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff;
  font-size: .74rem; font-weight: 700; text-decoration: none; cursor: pointer;
  box-shadow: 0 18px 34px rgba(31,125,255,.22); transition: transform .18s ease, box-shadow .18s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 24px 42px rgba(31,125,255,.28); }
.button--secondary,
.button--ghost {
  background: rgba(255,255,255,.6);
  border-color: rgba(9,18,38,.12);
  box-shadow: none;
  color: var(--ink);
}

.section { position: relative; padding: 104px 0 0; }
.hero {
  isolation: isolate; overflow: hidden; display: grid; grid-template-columns: minmax(0,1.05fr) minmax(320px,.95fr);
  gap: clamp(24px,4vw,52px); align-items: center; min-height: min(820px, calc(100vh - 88px));
  margin-top: 20px; padding: clamp(28px,4vw,48px); border-radius: var(--radius-xl);
  background: linear-gradient(140deg, #071221 0%, #0c1830 44%, #0b1426 100%);
  color: var(--cream); box-shadow: var(--shadow-strong);
}
.hero::before, .section--contrast::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(circle at 12% 18%, rgba(120,202,255,.20), transparent 24%),
    radial-gradient(circle at 86% 18%, rgba(31,125,255,.22), transparent 22%),
    radial-gradient(circle at 70% 84%, rgba(105,214,255,.18), transparent 22%);
}
.hero::after, .section--contrast::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background:
    repeating-linear-gradient(90deg, transparent 0, transparent 99px, rgba(255,255,255,.04) 99px, rgba(255,255,255,.04) 100px),
    repeating-linear-gradient(0deg, transparent 0, transparent 99px, rgba(255,255,255,.03) 99px, rgba(255,255,255,.03) 100px);
  opacity: .24;
}
.hero__copy, .hero__visual, .section--contrast > * { position: relative; z-index: 1; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 16px; font-size: .7rem; font-weight: 700; color: var(--primary-3); text-transform: uppercase; letter-spacing: .08em; }
.eyebrow::before { content: ''; width: 34px; height: 1px; background: currentColor; }
.hero .eyebrow, .section--contrast .eyebrow { color: var(--cyan); }
h1,h2,h3 { margin: 0; font-family: var(--font-display); font-weight: 700; line-height: .96; letter-spacing: -.05em; }
h1 { max-width: 10ch; font-size: clamp(3.1rem, 7.4vw, 6.5rem); color: #fff; }
h2 { max-width: 14ch; font-size: clamp(2.3rem, 4.1vw, 4rem); }
h3 { font-size: clamp(1.35rem, 2vw, 1.9rem); }
p, li { font-size: 1rem; line-height: 1.72; color: var(--ink-soft); }
.hero p, .section--contrast p, .section--contrast li { color: rgba(245,251,255,.74); }
.lead { max-width: 62ch; margin: 26px 0 0; font-size: clamp(1.12rem,2vw,1.32rem); color: rgba(245,251,255,.9) !important; }
.hero__body { max-width: 58ch; margin: 18px 0 0; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero .button--secondary { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.16); color: var(--cream); }
.hero__chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 0; padding: 0; list-style: none; }
.hero__chips li { padding: 10px 14px; border: 1px solid rgba(255,255,255,.12); border-radius: 999px; background: rgba(255,255,255,.06); color: var(--cream); font-size: .78rem; }

.product-card {
  position: relative; min-height: 560px; overflow: hidden; padding: 26px; border-radius: 34px;
  border: 1px solid rgba(255,255,255,.1); background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.025));
}
.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 72% 22%, rgba(31,125,255,.26), transparent 24%), radial-gradient(circle at 24% 76%, rgba(105,214,255,.18), transparent 26%);
}
.product-card__header { position: relative; z-index: 1; max-width: 320px; padding: 24px; border-radius: 28px; background: linear-gradient(135deg, #e9f5ff, #a8dcff 58%, #2b8eff); color: var(--ink); box-shadow: 0 28px 54px rgba(0,0,0,.22); transform: rotate(-5deg); }
.product-card__header span, .flow-step span { display: inline-block; margin-bottom: 8px; color: var(--primary); font-size: .66rem; font-weight: 700; }
.product-card__header strong { display: block; font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3rem); line-height: .9; letter-spacing: -.05em; text-transform: uppercase; }
.flow-step { position: absolute; z-index: 2; width: min(245px, calc(100% - 44px)); padding: 18px; border-radius: 22px 22px 10px 22px; background: rgba(247,251,255,.94); color: var(--ink); box-shadow: 0 20px 40px rgba(0,0,0,.18); }
.flow-step strong { display:block; font-size: 1.08rem; }
.flow-step small { display:block; margin-top: 6px; color: var(--ink-soft); line-height: 1.45; }
.flow-step--one { top: 42px; right: 24px; }
.flow-step--two { top: 190px; right: 50px; }
.flow-step--three { bottom: 74px; right: 26px; }
.flow-step--four { bottom: 40px; left: 26px; }

.strip { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px; margin-top: -36px; z-index: 3; }
.strip article, .layer-card, .case-card, .compare-card, .demo-panel {
  position: relative; overflow: hidden; padding: 28px; border-radius: var(--radius-card); border: 1px solid rgba(9,18,38,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(243,248,255,.98)); box-shadow: var(--shadow);
}
.strip article::before, .layer-card::before, .case-card::before, .compare-card::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--primary); }
.strip article:nth-child(2)::before { background: var(--cyan); }
.strip article:nth-child(3)::before { background: var(--primary-2); }
.strip article:nth-child(4)::before { background: linear-gradient(90deg,var(--primary),var(--cyan)); }
.strip span { display:inline-block; margin-bottom: 14px; color: var(--primary); font-size: .68rem; font-weight: 700; }
.strip p { margin: 0; color: var(--ink); font-weight: 700; line-height: 1.55; }
.section__intro { display: grid; gap: 16px; }
.section__intro p { max-width: 74ch; margin: 0; }
.section--contrast { margin-top: 110px; padding: 70px clamp(20px,4vw,46px); border-radius: var(--radius-xl); background: linear-gradient(140deg, #0b1323, #111c31 46%, #0c1425); box-shadow: var(--shadow-strong); color: #fff; }
.section--contrast h2, .section--contrast h3 { color:#fff; }
.compare-grid, .layer-grid, .case-grid { display:grid; gap:20px; margin-top:38px; }
.compare-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
.compare-card { background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04)); border-color: rgba(255,255,255,.1); box-shadow:none; }
.compare-card__label, .case-card__label, .layer-card span { color: var(--primary); font-size: .68rem; font-weight: 700; }
.compare-card--accent { background: linear-gradient(180deg, rgba(31,125,255,.18), rgba(255,255,255,.04)); }
.compare-card--accent::before { background: var(--cyan); }
.layer-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
.layer-card { display:grid; gap:16px; min-height: 290px; }
.layer-card p, .case-card p { margin:0; }
.case-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
.case-card { display:grid; gap:14px; background: linear-gradient(180deg, rgba(10,18,33,.98), rgba(16,27,47,.98)); box-shadow: var(--shadow-strong); }
.case-card h3 { color:#fff; }
.case-card p { color: rgba(245,251,255,.74); }
.case-card:nth-child(1)::before { background: var(--primary); }
.case-card:nth-child(2)::before { background: var(--cyan); }
.case-card:nth-child(3)::before { background: var(--primary-3); }
.section--demo { padding-bottom: 90px; }
.demo-panel { display:grid; grid-template-columns: minmax(0,1.1fr) minmax(260px,.9fr); gap: 28px; align-items:center; background: linear-gradient(135deg, #eaf6ff, #cde9ff 46%, #8dd7ff); }
.demo-panel h2, .demo-panel p { color: var(--ink); }
.demo-panel__actions { display:flex; flex-wrap:wrap; gap:14px; justify-content:flex-end; }
.footer { display:flex; justify-content:space-between; gap:20px; padding: 0 0 42px; border-top:1px solid var(--line); }
.footer p { margin: 18px 0 0; font-size:.88rem; }
[data-reveal] { opacity: 0; transform: translateY(30px); transition: opacity .62s ease, transform .62s ease; }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1080px) {
  .hero { grid-template-columns: 1fr; min-height:auto; }
  .hero__visual { order: -1; }
  .strip, .layer-grid, .case-grid, .compare-grid, .demo-panel { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .demo-panel > * { grid-column: 1 / -1; }
  .demo-panel__actions { justify-content:flex-start; }
}
@media (max-width: 760px) {
  .topbar { top:10px; flex-wrap:wrap; justify-content:center; border-radius:28px; }
  .nav { order:3; }
  .brand { flex-direction: column; }
  .brand__text { text-align: center; }
  .section, .section--contrast { padding-top: 76px; }
  .hero { padding:24px; border-radius:28px; }
  h1 { font-size: clamp(2.85rem, 15vw, 4.5rem); }
  .strip, .layer-grid, .case-grid, .compare-grid, .demo-panel { grid-template-columns: 1fr; }
  .product-card { min-height: auto; display:grid; gap:14px; }
  .product-card__header, .flow-step { position: relative; inset:auto; width:auto; transform:none; }
  .footer { flex-direction:column; }
}