:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #0d1117;
  --text-secondary: #4b5563;
  --muted: #9ca3af;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --border: #e5e7eb;
  --hero-bg: #0f172a;
  --hero-text: #f8fafc;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f17;
    --surface: #111827;
    --text: #f3f4f6;
    --text-secondary: #9ca3af;
    --muted: #6b7280;
    --border: #1f2937;
    --hero-bg: #020617;
    --hero-text: #f8fafc;
    --shadow: 0 1px 3px rgba(0,0,0,0.3), 0 4px 12px rgba(0,0,0,0.25);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
@media (prefers-color-scheme: dark) {
  .topbar { background: rgba(11,15,23,0.85); }
}

.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--text);
}
.brand-badge {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.topnav a {
  padding: 6px 10px;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  white-space: nowrap;
}
.topnav a:hover { background: var(--border); color: var(--text); }
.topnav a.is-active { color: var(--text); background: var(--border); font-weight: 600; }

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.lang-link {
  font-size: 0.78rem;
  padding: 4px 7px;
  border-radius: 6px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.lang-link.is-active { color: var(--text); background: var(--border); font-weight: 600; }

.hero {
  background: var(--hero-bg);
  color: var(--hero-text);
  padding: 80px 0 64px;
  text-align: center;
}
.hero h1 { font-size: 2.4rem; margin: 0 0 16px; }
.hero p { font-size: 1.15rem; opacity: 0.85; max-width: 560px; margin: 0 auto 28px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta {
  background: var(--accent);
  color: #fff;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
}
.cta:hover { background: var(--accent-hover); text-decoration: none; }
.secondary {
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--hero-text);
  padding: 12px 22px;
  border-radius: 999px;
}
.secondary:hover { background: rgba(255,255,255,0.08); text-decoration: none; }

.page-shell { max-width: 760px; margin: 0 auto; padding: 0 20px; }

.page-hero { padding: 56px 0 36px; text-align: center; }
.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 10px;
}
.page-title { font-size: 2rem; margin: 0 0 12px; }
.page-subtitle { color: var(--text-secondary); font-size: 1.05rem; margin: 0 auto 16px; max-width: 620px; }
.meta-row {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 0.88rem;
  color: var(--muted);
}

.legal-layout { max-width: 760px; margin: 0 auto; padding: 0 20px 64px; }
.legal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.legal-card h2 { font-size: 1.25rem; margin: 0 0 12px; }
.legal-card p { color: var(--text-secondary); margin: 0 0 12px; }
.legal-card p:last-child { margin-bottom: 0; }
.legal-card ul { color: var(--text-secondary); padding-left: 22px; margin: 0 0 12px; }
.legal-card li { margin-bottom: 6px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  padding-top: 48px;
  padding-bottom: 64px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.feature-card h3 { margin: 0 0 8px; }
.feature-card p { color: var(--text-secondary); margin: 0; }

.license-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: 0.92rem;
}
.license-table th, .license-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.license-table th { background: var(--border); color: var(--text); font-weight: 600; }
.license-table tr:last-child td { border-bottom: none; }

.footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 40px 0;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
}
.footer-brand { color: var(--text-secondary); font-size: 0.92rem; }
.footer-brand div { color: var(--text); font-weight: 700; margin-bottom: 8px; }
.footer-brand p { margin: 4px 0; }
.footer-group { display: flex; flex-direction: column; gap: 8px; }
.footer-group a { color: var(--text-secondary); }

@media (max-width: 760px) {
  .topbar-inner { flex-wrap: wrap; height: auto; padding: 10px 16px; }
  .topnav { order: 3; width: 100%; justify-content: center; }
  .lang-switcher { order: 2; }
  .hero { padding: 56px 0 44px; }
  .hero h1 { font-size: 1.8rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}