:root {
  --bg: #fafaf9;
  --surface: #ffffff;
  --text: #1c1917;
  --muted: #57534e;
  --border: #e7e5e4;
  --accent: #4f46e5;
  --accent-soft: #eef2ff;
  --ok: #15803d;
  --err: #b91c1c;
  --radius: 14px;
  --max: 720px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0a09;
    --surface: #1c1917;
    --text: #f5f5f4;
    --muted: #a8a29e;
    --border: #292524;
    --accent: #818cf8;
    --accent-soft: #1e1b4b;
    --ok: #4ade80;
    --err: #f87171;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Devanagari", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

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

/* Header / footer */
.site-header { border-bottom: 1px solid var(--border); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { color: var(--text); text-decoration: none; font-weight: 650; letter-spacing: -0.01em; display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 26px; height: 26px; border-radius: 8px; background: var(--accent); display: inline-block; transform: rotate(-8deg); }
.nav { display: flex; gap: 20px; font-size: 15px; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--text); }

.site-footer { border-top: 1px solid var(--border); margin-top: 80px; padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--text); }

/* Home */
.hero { padding: 72px 0 40px; }
.hero h1 { font-size: clamp(2rem, 6vw, 2.75rem); line-height: 1.15; letter-spacing: -0.03em; margin: 0 0 16px; }
.hero p { color: var(--muted); font-size: 1.125rem; margin: 0; max-width: 34em; }

.section { padding: 32px 0; }
.section > h2 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-weight: 600; margin: 0 0 16px; }

.apps { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 12px; }
.app {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.app h3 { margin: 0; font-size: 1.1rem; letter-spacing: -0.01em; }
.app .tag { font-size: 13px; color: var(--muted); }
.app p { margin: 4px 0 8px; color: var(--muted); font-size: 15px; flex: 1; }
.app a { font-size: 14px; font-weight: 550; text-decoration: none; }
.app a:hover { text-decoration: underline; }

/* Form */
.form { display: grid; gap: 14px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .form .row { grid-template-columns: 1fr; } }
.field { display: grid; gap: 6px; }
.field label { font-size: 14px; font-weight: 550; }
.field input, .field select, .field textarea {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 13px;
  width: 100%;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
.hp { position: absolute; left: -9999px; }
.btn {
  font: inherit;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 12px 20px;
  cursor: pointer;
  justify-self: start;
}
@media (prefers-color-scheme: dark) { .btn { color: #0c0a09; } }
.btn:disabled { opacity: 0.6; cursor: progress; }
.form-status { font-size: 15px; margin: 0; min-height: 1.5em; }
.form-status.ok { color: var(--ok); }
.form-status.err { color: var(--err); }

/* Policy */
.policy-head { padding: 56px 0 8px; }
.eyebrow { font-size: 14px; color: var(--accent); font-weight: 600; margin: 0 0 8px; }
.policy-head h1 { font-size: clamp(1.9rem, 5vw, 2.4rem); letter-spacing: -0.03em; line-height: 1.2; margin: 0 0 8px; }
.policy-head .meta { color: var(--muted); font-size: 15px; margin: 0; }

.summary { background: var(--accent-soft); border-radius: var(--radius); padding: 20px 24px; margin: 28px 0 8px; }
.summary h2 { font-size: 1rem; margin: 0 0 8px; }
.summary ul { margin: 0; padding-left: 20px; }
.summary li { margin: 4px 0; }

.policy h2 { font-size: 1.25rem; letter-spacing: -0.01em; margin: 40px 0 10px; scroll-margin-top: 16px; }
.policy h3 { font-size: 1rem; margin: 20px 0 6px; }
.policy p, .policy li { color: var(--text); }
.policy ul { padding-left: 20px; }
.policy li { margin: 6px 0; }
.policy code { font-size: 0.9em; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 1px 6px; overflow-wrap: anywhere; }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 10px; margin: 16px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--surface); font-weight: 600; }
tr:last-child td { border-bottom: 0; }

.lang-block { border-top: 1px solid var(--border); margin-top: 48px; }

@media print {
  .site-header, .site-footer { display: none; }
  .summary { border: 1px solid #ccc; }
}