/* NomorOTP Docs — shared styles */
:root {
  --brand-500: #3B82F6;
  --brand-600: #2563EB;
  --brand-700: #1D4ED8;
  --navy-800: #0A2540;
  --navy-900: #061A2F;
  --ink-500: #64748B;
  --ink-600: #475569;
  --ink-700: #334155;
  --ink-800: #1E293B;
  --bg: #FFFFFF;
  --bg-soft: #F8FAFC;
  --border: #E2E8F0;
  --code-bg: #0F172A;
  --code-text: #E2E8F0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F172A;
    --bg-soft: #1E293B;
    --border: #334155;
    --ink-500: #94A3B8;
    --ink-600: #CBD5E1;
    --ink-700: #E2E8F0;
    --ink-800: #F1F5F9;
    --navy-800: #DBEAFE;
  }
}

* { box-sizing: border-box; -webkit-font-smoothing: antialiased; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink-700);
  line-height: 1.6;
}

/* Layout */
.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.wrap { max-width: 780px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
@media (prefers-color-scheme: dark) {
  .site-header { background: rgba(15,23,42,0.85); }
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; max-width: 1120px; margin: 0 auto; gap: 20px;
}
.logo {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 800; color: var(--navy-800); text-decoration: none; font-size: 16px;
}
.logo-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-500), #22D3EE);
}
.nav-menu { display: flex; gap: 4px; align-items: center; }
.nav-menu a {
  padding: 6px 12px; font-size: 14px; font-weight: 500;
  color: var(--ink-600); text-decoration: none; border-radius: 6px;
  transition: background 0.15s;
}
.nav-menu a:hover { background: var(--bg-soft); color: var(--navy-800); }
.nav-menu a.active { background: var(--bg-soft); color: var(--navy-800); font-weight: 600; }
.nav-cta {
  padding: 8px 16px; background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
  color: white !important; border-radius: 8px; font-weight: 700; font-size: 13px;
  text-decoration: none; box-shadow: 0 4px 12px rgba(59,130,246,0.3);
  transition: transform 0.15s;
}
.nav-cta:hover { transform: translateY(-1px); }
.mobile-toggle { display: none; }
@media (max-width: 720px) {
  .nav-menu { display: none; }
  .nav-menu.open {
    display: flex; flex-direction: column; position: absolute;
    top: 100%; left: 0; right: 0; background: var(--bg);
    border-bottom: 1px solid var(--border); padding: 12px;
  }
  .nav-menu.open a { padding: 10px 16px; }
  .mobile-toggle {
    display: inline-flex; width: 36px; height: 36px; border: none;
    background: transparent; border-radius: 6px; cursor: pointer;
    align-items: center; justify-content: center; color: var(--navy-800);
  }
  .mobile-toggle:hover { background: var(--bg-soft); }
}

/* Hero */
.hero {
  padding: 60px 20px 40px;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
  border-bottom: 1px solid var(--border);
}
.hero-inner { max-width: 780px; margin: 0 auto; text-align: left; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 12px; border-radius: 999px;
  background: rgba(59,130,246,0.1); color: var(--brand-600);
  font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.hero-tag-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
h1 {
  font-size: clamp(28px, 5vw, 44px); font-weight: 800;
  color: var(--navy-800); line-height: 1.15; margin: 0 0 16px;
}
.hero-sub {
  font-size: 18px; color: var(--ink-500); margin: 0 0 28px; max-width: 640px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 10px; font-weight: 700; font-size: 14px;
  text-decoration: none; transition: transform 0.15s, box-shadow 0.15s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
  color: white; box-shadow: 0 6px 16px rgba(59,130,246,0.35);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(59,130,246,0.45); }
.btn-secondary {
  background: var(--bg); color: var(--navy-800);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-soft); }

/* Content */
main { padding: 48px 0 64px; }
main h2 {
  font-size: 26px; font-weight: 800; color: var(--navy-800);
  margin: 40px 0 16px; line-height: 1.3;
}
main h3 {
  font-size: 19px; font-weight: 700; color: var(--navy-800);
  margin: 28px 0 10px;
}
main p { margin: 0 0 14px; color: var(--ink-600); }
main a { color: var(--brand-600); text-decoration: none; font-weight: 500; }
main a:hover { text-decoration: underline; }
main ul, main ol { padding-left: 24px; margin: 0 0 16px; color: var(--ink-600); }
main li { margin-bottom: 6px; }
main strong { color: var(--ink-800); font-weight: 700; }

/* Code */
code {
  background: var(--bg-soft); padding: 2px 6px; border-radius: 4px;
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Monaco, monospace;
  font-size: 0.9em; color: var(--navy-800);
  border: 1px solid var(--border);
}
pre {
  background: var(--code-bg); color: var(--code-text);
  padding: 18px; border-radius: 10px; overflow-x: auto;
  font-size: 13px; line-height: 1.55;
  margin: 16px 0;
  border: 1px solid rgba(255,255,255,0.05);
}
pre code {
  background: transparent; border: none; padding: 0; color: inherit;
  font-size: inherit;
}

/* Feature grid */
.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px; margin: 24px 0;
}
.card {
  background: var(--bg-soft); border: 1px solid var(--border);
  padding: 20px; border-radius: 12px; transition: transform 0.15s, border-color 0.15s;
}
.card:hover { transform: translateY(-2px); border-color: var(--brand-500); }
.card h3 { margin: 0 0 8px; font-size: 16px; }
.card p { font-size: 14px; margin: 0; }
.card a.card-link {
  display: inline-block; margin-top: 12px; font-size: 13px;
  font-weight: 700; color: var(--brand-600);
}

/* Table */
table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 14px; }
th, td {
  border: 1px solid var(--border); padding: 10px 14px; text-align: left;
}
th { background: var(--bg-soft); font-weight: 700; color: var(--navy-800); }
tbody tr:hover { background: var(--bg-soft); }

/* Tabs (for code examples) */
.tabs { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; margin: 16px 0; }
.tab-headers {
  display: flex; background: var(--bg-soft); border-bottom: 1px solid var(--border);
}
.tab-btn {
  padding: 10px 16px; border: none; background: transparent; cursor: pointer;
  font-family: inherit; font-size: 13px; font-weight: 600; color: var(--ink-500);
  border-bottom: 2px solid transparent; transition: color 0.15s, border-color 0.15s;
}
.tab-btn.active { color: var(--brand-600); border-bottom-color: var(--brand-500); }
.tab-content { display: none; padding: 0; }
.tab-content.active { display: block; }
.tab-content pre { margin: 0; border-radius: 0; border: none; }

/* Callout */
.callout {
  padding: 14px 16px; border-radius: 8px; margin: 20px 0;
  border-left: 3px solid; display: flex; gap: 12px;
}
.callout-info { background: rgba(59,130,246,0.08); border-color: var(--brand-500); color: var(--ink-700); }
.callout-warn { background: rgba(245,158,11,0.08); border-color: #F59E0B; color: var(--ink-700); }
.callout-icon { flex-shrink: 0; font-size: 18px; }
.callout p:last-child { margin-bottom: 0; }

/* Footer */
.site-footer {
  background: var(--bg-soft); border-top: 1px solid var(--border);
  padding: 40px 20px 24px; margin-top: 40px;
}
.footer-inner {
  max-width: 1120px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px;
}
@media (max-width: 640px) {
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
}
.footer-col h4 {
  font-size: 12px; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--ink-500); margin: 0 0 14px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 8px; font-size: 14px; }
.footer-col a { color: var(--ink-600); text-decoration: none; }
.footer-col a:hover { color: var(--brand-600); }
.footer-brand p { font-size: 14px; color: var(--ink-500); margin: 10px 0 0; max-width: 320px; }
.footer-bottom {
  max-width: 1120px; margin: 24px auto 0; padding-top: 20px;
  border-top: 1px solid var(--border); font-size: 13px; color: var(--ink-500);
  text-align: center;
}
.footer-bottom a { color: var(--brand-600); }