:root {
  --navy-bg: #0B0E14;
  --navy-surface: #12161F;
  --navy-surface-variant: #1A2030;
  --navy-surface-high: #1E2433;
  --navy-border: #2A3142;
  --accent-blue: #4C8DFF;
  --accent-blue-dark: #2B5FCC;
  --accent-blue-container: #1E3A66;
  --emerald: #10B981;
  --emerald-2: #34D399;
  --on-primary: #E7ECF7;
  --on-secondary: #9AA5BD;
  --warning: #EB3B5A;
  --radius-lg: 20px;
  --radius-md: 14px;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--navy-bg);
  background-image:
    radial-gradient(circle at 15% 0%, rgba(76, 141, 255, 0.14), transparent 45%),
    radial-gradient(circle at 85% 10%, rgba(16, 185, 129, 0.10), transparent 40%);
  color: var(--on-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

[data-lang-block] { display: block; }
[hidden] { display: none !important; }
li[data-lang-block] { display: list-item; }
span[data-lang-block] { display: inline; }

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

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--navy-border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  color: var(--on-primary);
}

.brand .mark {
  width: 28px;
  height: 28px;
  color: var(--accent-blue);
}

.brand .mark svg { width: 100%; height: 100%; display: block; }

.header-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-nav a.nav-link {
  color: var(--on-secondary);
  font-size: 14px;
  font-weight: 500;
}
.header-nav a.nav-link:hover { color: var(--on-primary); text-decoration: none; }

.lang-switch {
  display: flex;
  gap: 4px;
  background: var(--navy-surface-variant);
  border: 1px solid var(--navy-border);
  border-radius: 999px;
  padding: 3px;
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--on-secondary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 11px;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
}

.lang-btn.active {
  background: var(--accent-blue);
  color: #fff;
}

/* Hero */
.hero {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--navy-border);
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 48px;
}

.hero-icon {
  flex: 0 0 auto;
  width: 108px;
  height: 108px;
  border-radius: 26px;
  overflow: hidden;
  box-shadow: 0 20px 50px -12px rgba(76, 141, 255, 0.45);
}
.hero-icon img { width: 100%; height: 100%; display: block; }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--emerald-2);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.hero h1 {
  font-size: 40px;
  line-height: 1.1;
  margin: 0 0 12px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.hero .subtitle {
  font-size: 18px;
  color: var(--on-secondary);
  max-width: 60ch;
  margin: 0 0 16px;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-cta {
  margin-top: 20px;
}

.pill {
  font-size: 13px;
  color: var(--on-secondary);
  background: var(--navy-surface);
  border: 1px solid var(--navy-border);
  padding: 5px 12px;
  border-radius: 999px;
}

/* Sections */
section { padding: 56px 0; }
section.alt { background: rgba(255,255,255,0.015); border-top: 1px solid var(--navy-border); border-bottom: 1px solid var(--navy-border); }

h2.section-title {
  font-size: 26px;
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.section-lede {
  color: var(--on-secondary);
  max-width: 68ch;
  margin: 0 0 32px;
  font-size: 15.5px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background: var(--navy-surface);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.card .card-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--accent-blue-container);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 18px;
}

.card h3 {
  font-size: 17px;
  margin: 0 0 12px;
  font-weight: 700;
}

.card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--on-secondary);
  font-size: 14.5px;
}

.card ul li { margin-bottom: 9px; }
.card ul li:last-child { margin-bottom: 0; }
.card ul li::marker { color: var(--accent-blue); }

.overview p {
  color: var(--on-secondary);
  max-width: 74ch;
  font-size: 16px;
}
.overview p strong { color: var(--on-primary); }

/* Requirements table-ish list */
.req-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.req-item {
  border: 1px solid var(--navy-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  background: var(--navy-surface);
}

.req-item .label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-blue);
  font-weight: 700;
  margin-bottom: 6px;
}

.req-item p { margin: 0; color: var(--on-secondary); font-size: 14.5px; }

/* Notice / privacy teaser */
.notice {
  border: 1px solid var(--navy-border);
  background: linear-gradient(135deg, rgba(76,141,255,0.08), rgba(16,185,129,0.05));
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.notice p { margin: 0; color: var(--on-secondary); max-width: 56ch; font-size: 14.5px; }
.notice h3 { margin: 0 0 6px; font-size: 18px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-blue);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  padding: 11px 18px;
  border-radius: 999px;
  white-space: nowrap;
}
.btn:hover { background: var(--accent-blue-dark); text-decoration: none; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--navy-border);
  color: var(--on-primary);
}
.btn-ghost:hover { border-color: var(--accent-blue); background: rgba(76,141,255,0.08); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--navy-border);
  padding: 36px 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.footer-inner .brand { margin-bottom: 8px; }

.footer-col p, .footer-col a { color: var(--on-secondary); font-size: 13.5px; }
.footer-col a { display: block; margin-bottom: 6px; }
.footer-col h4 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--on-secondary);
  margin: 0 0 12px;
}

.copyright {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--navy-border);
  color: var(--on-secondary);
  font-size: 13px;
}

/* Privacy page */
.policy {
  max-width: 780px;
}

.policy h2 {
  font-size: 20px;
  margin: 40px 0 12px;
  font-weight: 700;
  color: var(--on-primary);
}
.policy h2:first-of-type { margin-top: 0; }

.policy p, .policy li {
  color: var(--on-secondary);
  font-size: 15.5px;
}

.policy ul { padding-left: 20px; }
.policy ul li { margin-bottom: 8px; }
.policy ul li::marker { color: var(--accent-blue); }

.policy .updated {
  color: var(--on-secondary);
  font-size: 13.5px;
  margin-bottom: 8px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  margin-bottom: 24px;
  color: var(--on-secondary);
}
.back-link:hover { color: var(--accent-blue); }

@media (max-width: 720px) {
  .hero-inner { flex-direction: column; align-items: flex-start; text-align: left; }
  .hero h1 { font-size: 30px; }
  .site-header .wrap { flex-wrap: wrap; height: auto; padding-top: 12px; padding-bottom: 12px; gap: 10px; }
}