:root {
  --bg: #0b0f17;
  --bg-soft: #121826;
  --card: #161d2e;
  --border: rgba(255, 255, 255, 0.10);
  --text: #eef2f9;
  --muted: #9aa6bd;
  --cyan: #22d3ee;
  --indigo: #818cf8;
  --accent: #2dd4bf;
  --radius: 16px;
  --maxw: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(1200px 700px at 70% -10%, rgba(129, 140, 248, 0.18), transparent 60%),
              radial-gradient(900px 600px at 0% 10%, rgba(34, 211, 238, 0.12), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(160%) blur(12px);
  background: rgba(11, 15, 23, 0.72);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap { display: flex; align-items: center; gap: 16px; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.01em; text-decoration: none; }
.brand .logo {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan), var(--indigo));
  display: grid; place-items: center; color: #06121a; font-size: 16px;
}
.nav { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav a:hover { color: var(--text); }
.lang select {
  background: var(--card); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 7px 10px; font-size: 13px; font-family: var(--font);
}

/* Hero */
.hero { padding: 84px 0 56px; text-align: center; }
.hero h1 { font-size: clamp(34px, 6vw, 60px); line-height: 1.05; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero .grad { background: linear-gradient(120deg, var(--cyan), var(--indigo)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.sub { font-size: clamp(17px, 2.4vw, 21px); color: var(--muted); max-width: 640px; margin: 0 auto 28px; }
.cta { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.badge-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: #fff; color: #06121a; text-decoration: none;
  padding: 12px 18px; border-radius: 12px; font-weight: 600; font-size: 15px;
}
.badge-btn.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.badge-btn:hover { transform: translateY(-1px); }
.pill { display:inline-block; padding:6px 12px; border:1px solid var(--border); border-radius:999px; color:var(--muted); font-size:13px; margin-bottom:22px; }

/* Sections */
section { padding: 48px 0; }
h2.section-title { font-size: clamp(24px, 3.4vw, 34px); text-align: center; margin: 0 0 8px; letter-spacing: -0.01em; }
p.section-sub { text-align:center; color: var(--muted); max-width: 620px; margin: 0 auto 36px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature {
  background: linear-gradient(180deg, var(--card), var(--bg-soft));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px;
}
.feature .ic { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; font-size: 20px;
  background: rgba(34, 211, 238, 0.12); margin-bottom: 12px; }
.feature h3 { margin: 0 0 6px; font-size: 17px; }
.feature p { margin: 0; color: var(--muted); font-size: 14.5px; }

.privacy-band {
  background: linear-gradient(135deg, rgba(34,211,238,0.10), rgba(129,140,248,0.10));
  border: 1px solid var(--border); border-radius: 20px; padding: 36px; text-align: center;
}
.privacy-band h2 { margin: 0 0 10px; }
.privacy-band p { color: var(--muted); max-width: 680px; margin: 0 auto; }

/* Content pages */
.doc { padding: 56px 0; max-width: 800px; }
.doc h1 { font-size: 32px; margin: 0 0 6px; }
.doc .updated { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.doc h2 { font-size: 20px; margin: 28px 0 8px; }
.doc p, .doc li { color: #c7d0e0; }
.doc a { color: var(--cyan); }
.doc ul { padding-left: 20px; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 30px 0; margin-top: 40px; color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--text); }
.site-footer .spacer { margin-left: auto; }

@media (max-width: 760px) {
  .features { grid-template-columns: 1fr; }
  .nav a.navlink { display: none; }
}