:root {
  --bg: #0b1220;
  --bg-soft: #0f172a;
  --card: #0b1220;
  --ink: #e5e7eb;
  --muted: #9ca3af;
  --brand: #7c3aed;
  --brand2: #22d3ee;
  --ring: #7c3aed33;
  --shadow: 0 12px 40px rgba(2, 6, 23, .35);
  --radius: 18px;
  --maxw: 1160px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --bg-soft: #f8fafc;
    --card: #ffffff;
    --ink: #0f172a;
    --muted: #475569;
    --shadow: 0 10px 30px rgba(2, 6, 23, .08);
  }
}

* { box-sizing: border-box }
html, body { height: 100% }
html { scroll-behavior: smooth }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--ink);
  background:
    radial-gradient(1600px 700px at -10% -20%, #1f2937 0%, transparent 60%),
    radial-gradient(1200px 600px at 110% 0%, #0b3d4d 0%, transparent 60%),
    var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--ring); outline-offset: 3px; border-radius: 10px;
}

.container { max-width: var(--maxw); margin-inline: auto; padding: clamp(16px, 3vw, 28px); }

/* Header */
.header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(160%) blur(8px);
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--ink) 10%, transparent);
}
.nav { display:flex; align-items:center; justify-content:space-between; gap:16px }
.logo { display:flex; align-items:center; gap:10px; font-weight:700 }
.logo-mark {
  width:42px; height:42px; border-radius:14px;
  background: conic-gradient(from 0deg, var(--brand), var(--brand2));
  display:grid; place-items:center; color:#fff; box-shadow: var(--shadow);
  font-weight:700;
}
.nav-links { display:flex; gap:18px; align-items:center; flex-wrap:wrap }
.link { opacity:.9; transition: opacity .2s ease }
.link:hover { opacity:1 }
.btn {
  display:inline-flex; align-items:center; gap:10px; padding:12px 16px;
  border-radius:12px; border:1px solid color-mix(in oklab, var(--ink) 12%, transparent);
  background: linear-gradient(180deg, color-mix(in oklab, var(--card) 85%, transparent), color-mix(in oklab, var(--card) 100%, transparent));
  box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease;
  will-change: transform;
}
.btn:hover { transform: translateY(-2px) }
.btn.primary {
  background: linear-gradient(180deg, color-mix(in oklab, var(--brand) 25%, var(--card)), color-mix(in oklab, var(--brand) 45%, var(--card)));
  border-color: color-mix(in oklab, var(--brand) 50%, transparent);
}
.btn.ghost { background: transparent; box-shadow: none }
.icon { width:20px; height:20px; flex:0 0 20px }

/* Hero */
.hero {
  display:grid; grid-template-columns: 1.2fr .8fr; gap: 34px; align-items:center;
  min-height: 72vh; padding-block: min(12vh, 120px);
}
@media (max-width: 980px) { .hero { grid-template-columns:1fr } }
.pill {
  display:inline-flex; gap:10px; align-items:center; padding:8px 12px; border-radius:999px;
  background: color-mix(in oklab, var(--brand2) 18%, var(--card));
  border:1px solid color-mix(in oklab, var(--brand2) 35%, transparent);
  font-size: 13px; color: color-mix(in oklab, var(--ink) 80%, var(--brand2));
}
h1 { font-size: clamp(34px, 4.6vw, 64px); line-height: 1.08; margin: 10px 0 12px }
h2 { font-size: clamp(24px, 2.6vw, 36px); line-height: 1.2; margin: 0 0 12px }
.lead { font-size: clamp(16px, 1.4vw, 19px); color: var(--muted); margin: 0 0 20px }

.kpi { display:flex; gap:18px; flex-wrap:wrap; margin-top: 18px }
.card {
  background: var(--card);
  border: 1px solid color-mix(in oklab, var(--ink) 10%, transparent);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.stat { font: 700 28px/1 ui-sans-serif, system-ui }
.muted { color: var(--muted) }
.grid { display:grid; gap:18px }
.grid.cols-3 { grid-template-columns: repeat(3,1fr) }
.grid.cols-2 { grid-template-columns: repeat(2,1fr) }
@media (max-width: 980px){ .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr } }
.chip { display:inline-block; border:1px solid color-mix(in oklab, var(--ink) 12%, transparent); padding:6px 10px; border-radius:999px; font-size:13px }
.tag-row { display:flex; gap:10px; flex-wrap:wrap }
.case { display:flex; gap:16px; align-items:flex-start }
.case .thumb { width:80px; height:80px; flex:0 0 80px; border-radius:12px; background: linear-gradient(135deg, var(--brand), var(--brand2)); }
.case h3 { margin: 0 0 6px; font-size: 18px }
.case p { margin: 0 }

/* About */
.divider { height:1px; background: color-mix(in oklab, var(--ink) 10%, transparent); margin: 6px 0 14px }

/* Contact */
.form { display:grid; gap:12px }
input, textarea {
  width: 100%; padding: 12px 14px;
  border-radius: 12px; border: 1px solid color-mix(in oklab, var(--ink) 12%, transparent);
  background: color-mix(in oklab, var(--card) 90%, transparent); color: var(--ink);
}
input::placeholder, textarea::placeholder { color: color-mix(in oklab, var(--muted) 80%, transparent) }

/* Footer */
.footer { padding-block: 42px; border-top: 1px solid color-mix(in oklab, var(--ink) 10%, transparent); color: var(--muted); font-size: 14px }

/* Accessibility and motion */
.sr-only{ position:absolute !important; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0, 0, 0, 0); white-space:nowrap; border:0 }
.skip { position:absolute; left:-9999px }
.skip:focus { left:16px; top:16px; background:#fff; color:#000; padding:8px 12px; border-radius:10px; z-index:999 }

/* Reveal on scroll */
[data-reveal]{ opacity: 0; transform: translateY(8px); transition: opacity .5s ease, transform .5s ease }
[data-reveal].in{ opacity: 1; transform: none }
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important }
  [data-reveal] { opacity: 1; transform: none }
}