/* Shared styles for the static pages. They mirror the app's dark glass look so
   Privacy, Terms, SEO pages and 404 do not open as a plain white document. */

:root {
  --bg: #0a0c14;
  --bg-2: #10131f;
  --fg: #e9edf9;
  --muted: #a2abc4;
  --card: rgba(24, 28, 44, 0.62);
  --card-strong: rgba(30, 36, 56, 0.84);
  --border: rgba(255, 255, 255, 0.12);
  --primary: #7d8cff;
  --primary-strong: #93a0ff;
  --accent: #b18cff;
  --radius: 22px;
  --radius-sm: 12px;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--fg);
  font:
    16px/1.65 'Inter',
    'SF Pro Display',
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
  background:
    radial-gradient(900px 600px at 10% -10%, rgba(79, 107, 255, 0.3), transparent 60%),
    radial-gradient(700px 500px at 100% 0%, rgba(139, 92, 246, 0.24), transparent 55%),
    radial-gradient(600px 500px at 50% 110%, rgba(56, 189, 248, 0.16), transparent 60%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 880px;
  margin: 28px auto;
  padding: 0 28px 40px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.site-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 36px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: inherit;
  text-decoration: none;
}

.brand svg {
  width: 30px;
  height: 30px;
  flex: none;
  color: var(--primary);
  filter: drop-shadow(0 4px 12px rgba(79, 107, 255, 0.35));
}

.site-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 14px;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--fg);
  text-decoration: underline;
}

h1 {
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
  background: linear-gradient(120deg, var(--fg) 10%, var(--primary) 60%, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: -0.015em;
  margin: 40px 0 12px;
}

h3 {
  font-size: 17px;
  margin: 26px 0 8px;
}

p,
ul,
ol {
  margin: 0 0 14px;
}

ul,
ol {
  padding-left: 22px;
}

li {
  margin-bottom: 6px;
}

.lead {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 28px;
}

a {
  color: var(--primary-strong);
  text-underline-offset: 3px;
}

code {
  font:
    0.92em/1.4 'SF Mono',
    ui-monospace,
    Menlo,
    monospace;
  background: rgba(127, 140, 180, 0.16);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 6px;
}

.formula {
  background: rgba(10, 14, 26, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin: 0 0 18px;
  font:
    0.95em/1.7 'SF Mono',
    ui-monospace,
    Menlo,
    monospace;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 20px;
  font-size: 15px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

caption {
  text-align: left;
  font-size: 14px;
  color: var(--muted);
  padding-bottom: 8px;
}

th,
td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  font-weight: 600;
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(127, 140, 180, 0.1);
}

tbody tr:last-child td {
  border-bottom: none;
}

.cta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  background: var(--card-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin: 32px 0;
}

.cta p {
  margin: 0;
  flex: 1 1 260px;
}

.button {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #0b0e18;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 10px 24px rgba(79, 107, 255, 0.3);
}

.faq dt {
  font-weight: 600;
  margin-top: 18px;
}

.faq dd {
  margin: 6px 0 0;
  color: var(--muted);
}

.related {
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--muted);
}

.related h2 {
  font-size: 16px;
  margin: 0 0 10px;
}

.related ul {
  margin: 0;
}

.notfound {
  text-align: center;
  padding: 64px 20px;
}

.notfound h1 {
  font-size: 64px;
  margin-bottom: 8px;
}

.notfound p {
  color: var(--muted);
  margin-bottom: 24px;
}

.notfound .button {
  margin-top: 4px;
}

.site-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 42px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
}

.site-foot a {
  color: var(--muted);
}

.site-foot a:hover {
  color: var(--fg);
}

@media (max-width: 720px) {
  .wrap {
    margin: 12px;
    padding: 0 18px 28px;
  }

  .site-head {
    margin-bottom: 26px;
  }

  h1 {
    font-size: 30px;
  }
}

@media print {
  body {
    background: #fff;
    color: #111;
  }

  .wrap {
    margin: 0;
    padding: 0;
    border: none;
    box-shadow: none;
    background: #fff;
    backdrop-filter: none;
  }

  h1 {
    color: #111;
    -webkit-text-fill-color: #111;
  }
}