:root {
  --ink: #0f1b2d;
  --ink-2: #26344a;
  --muted: #5b6676;
  --line: #e3e7ed;
  --bg: #ffffff;
  --soft: #f5f7fa;
  --accent: #1f4fd1;
  --accent-soft: #e9efff;
  --max: 1120px;
  --radius: 12px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.02em;
}
.brand:hover { text-decoration: none; }
.brand svg { width: 30px; height: 30px; flex: none; }

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 15px;
}
.nav a { color: var(--ink-2); }
.nav a:hover { color: var(--accent); text-decoration: none; }
.lang {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  font-size: 13px;
  font-weight: 600;
}
.lang a,
.lang span {
  padding: 4px 11px;
  color: var(--muted);
}
.lang span { background: var(--ink); color: #fff; }
.lang a:hover { color: var(--ink); text-decoration: none; }

/* Hero */
.hero {
  padding: 96px 0 88px;
  background:
    radial-gradient(900px 400px at 85% -10%, var(--accent-soft), transparent 70%),
    var(--bg);
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
  max-width: 16ch;
}
.hero p {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--muted);
  max-width: 60ch;
  margin: 0 0 34px;
}
.btn {
  display: inline-block;
  background: var(--ink);
  color: #fff;
  padding: 13px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
}
.btn:hover { background: var(--accent); text-decoration: none; }
.platforms {
  margin-top: 56px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 28px;
  color: var(--muted);
  font-size: 14px;
}
.platforms strong {
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
}

/* Sections */
section { padding: 88px 0; }
section.alt { background: var(--soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 680px; margin-bottom: 44px; }
.section-head h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
}
.section-head p { color: var(--muted); margin: 0; font-size: 17px; }

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: start;
}
.about-grid p { margin: 0 0 18px; color: var(--ink-2); }
.pillars { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.pillars li {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  background: var(--bg);
}
.pillars strong { display: block; margin-bottom: 4px; }
.pillars span { color: var(--muted); font-size: 15px; }

.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}
.card .icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}
.card .icon svg { width: 22px; height: 22px; }
.card h3 { margin: 0 0 8px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* Contact strip */
.contact {
  padding: 72px 0;
  background: var(--ink);
  color: #fff;
}
.contact .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.contact h2 { margin: 0 0 6px; font-size: clamp(24px, 3vw, 30px); }
.contact p { margin: 0; color: #b9c3d3; }
.contact a.mail {
  color: #fff;
  font-weight: 600;
  font-size: 18px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 12px 20px;
  border-radius: 8px;
}
.contact a.mail:hover { background: #fff; color: var(--ink); text-decoration: none; }

/* Footer */
.site-footer {
  padding: 40px 0;
  font-size: 14px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px 32px;
}
.site-footer .legal { line-height: 1.7; }
.site-footer nav { display: flex; gap: 22px; }
.site-footer nav a { color: var(--ink-2); }

/* Legal pages */
.doc { padding: 64px 0 88px; }
.doc .wrap { max-width: 800px; }
.doc h1 { font-size: clamp(30px, 4vw, 40px); letter-spacing: -0.015em; margin: 0 0 8px; }
.doc .updated { color: var(--muted); margin: 0 0 40px; font-size: 15px; }
.doc h2 { font-size: 21px; margin: 40px 0 10px; }
.doc p,
.doc li { color: var(--ink-2); }
.doc ul { padding-left: 22px; }
.doc li { margin-bottom: 6px; }

/* Mobile */
@media (max-width: 860px) {
  .about-grid,
  .cards { grid-template-columns: 1fr; }
  .about-grid { gap: 32px; }
  .nav .hide-sm { display: none; }
  section { padding: 64px 0; }
  .hero { padding: 64px 0 60px; }
}
@media (max-width: 520px) {
  .wrap { padding: 0 16px; }
  .nav { gap: 16px; }
  .card { padding: 22px; }
}