/* ═══════════════════════════════════════════════════════════════════════
   ZuckerBot design system — single shared stylesheet for every static page
   (start, deal, support, tools, security, terms, privacy, account, consent).
   No build step: plain CSS, self-hosted variable fonts, dark-only theme.
   Token names intentionally match the legacy per-page <style> blocks so
   page-specific overrides written against them keep working.
   ═══════════════════════════════════════════════════════════════════════ */

@font-face {
  font-family: 'Space Grotesk';
  src: url('/fonts/space-grotesk-var-latin.woff2') format('woff2');
  font-weight: 500 700;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('/fonts/inter-var-latin.woff2') format('woff2');
  font-weight: 400 700;
  font-display: swap;
}

:root {
  /* palette */
  --bg: #0b0d12;
  --card: #12151d;
  --card-2: #171b26;
  --border: #242a3a;
  --border-strong: #33405c;
  --text: #e7eaf2;
  --muted: #9aa3b8;
  --faint: #5b6478;
  --accent: #4f7cff;
  --accent-hover: #6b91ff;
  --grad-a: #b6c4ff;
  --grad-b: #1256f4;
  --gradient: linear-gradient(135deg, var(--grad-a) 0%, var(--grad-b) 100%);
  --cyan: #22d3ee;
  --green: #34d399;
  --amber: #fbbf24;
  --red: #f87171;

  /* surfaces */
  --glass: rgba(18, 21, 29, 0.72);
  --glass-border: rgba(122, 141, 190, 0.16);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35), 0 1px 2px rgba(182, 196, 255, 0.05);

  /* type + shape */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Space Grotesk', var(--font-body);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;
  --radius: 14px;
  --radius-sm: 9px;

  color-scheme: dark;
}

/* ── Base ── */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background:
    radial-gradient(720px 480px at 10% -4%, rgba(18, 86, 244, 0.16), transparent 60%),
    radial-gradient(820px 560px at 94% 104%, rgba(0, 218, 243, 0.07), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
::selection { background: rgba(79, 124, 255, 0.35); }
h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: -0.02em; line-height: 1.22; }
a { color: var(--accent); }
a:hover { color: var(--accent-hover); }
code { font-family: var(--mono); font-size: 0.88em; background: var(--card-2); border: 1px solid var(--border); padding: 1px 5px; border-radius: 4px; }
pre code { background: none; border: 0; padding: 0; }

/* ── Layout ── */
.wrap { max-width: 640px; margin: 0 auto; padding: 40px 20px 80px; }
.wrap-wide { max-width: 1000px; margin: 0 auto; padding: 40px 24px 80px; }

/* ── Header / nav ── */
header.site { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 36px; }
.wordmark { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 20px; letter-spacing: -0.02em; color: var(--text); text-decoration: none; }
.wordmark img { width: 30px; height: 30px; }
.wordmark span b { background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 700; }
.site-nav { display: flex; align-items: center; gap: 18px; font-size: 13.5px; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover, .site-nav a.active { color: var(--text); }
.whoami { font-size: 13px; color: var(--muted); text-align: right; }
.whoami a { color: var(--muted); text-decoration: underline; cursor: pointer; }

/* ── Footer ── */
footer.site { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border); text-align: center; color: var(--faint); font-size: 12.5px; }
footer.site a { color: #7c88a3; }
footer.site a:hover { color: var(--text); }

/* ── Buttons ──
   Two families that share a look:
   • button.primary / button.secondary  → in-form buttons (start/account); margin-top baked in
   • .btn / .btn.primary / .btn.ghost    → inline link buttons (deal/support/final CTAs); no margin */
button.primary, button.secondary {
  appearance: none; border: 0; border-radius: var(--radius-sm); padding: 12px 18px;
  font-size: 15px; font-weight: 600; cursor: pointer; margin-top: 16px; font-family: var(--font-body);
  text-decoration: none; text-align: center;
  transition: filter .15s ease, border-color .15s ease, transform .1s ease;
}
.btn {
  display: inline-block; text-decoration: none; text-align: center; font-family: var(--font-body);
  font-weight: 600; font-size: 16px; border-radius: var(--radius-sm); padding: 14px 26px; border: 0;
  cursor: pointer; transition: filter .15s ease, border-color .15s ease, transform .1s ease;
}
button.primary, .btn.primary {
  background: var(--gradient); color: #0b1020;
  box-shadow: 0 4px 18px rgba(18, 86, 244, 0.35);
}
button.primary { width: 100%; }
button.primary:hover:not(:disabled), .btn.primary:hover { filter: brightness(1.12); color: #0b1020; }
button.primary:active:not(:disabled), .btn.primary:active { transform: translateY(1px); }
button.secondary, .btn.secondary, .btn.ghost {
  background: var(--card-2); color: var(--text); border: 1px solid var(--border-strong);
}
button.secondary:hover:not(:disabled), .btn.secondary:hover, .btn.ghost:hover { border-color: var(--accent); color: var(--text); }
button:disabled { opacity: .55; cursor: not-allowed; }
.linkish { background: none; border: 0; color: var(--muted); text-decoration: underline; cursor: pointer; font-size: 13.5px; padding: 0; margin-top: 18px; font-family: inherit; }
.linkish:hover { color: var(--text); }
.row-center { text-align: center; }

/* ── Forms ── */
label { display: block; font-size: 13px; font-weight: 600; margin: 16px 0 6px; color: var(--text); }
input[type="email"], input[type="text"], input[type="password"], textarea, select {
  width: 100%; padding: 11px 13px; font-size: 15px; color: var(--text);
  background: rgba(10, 12, 17, 0.85); border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  outline: none; font-family: inherit;
}
select { cursor: pointer; }
input:focus, textarea:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79, 124, 255, 0.18); }
textarea { font-family: var(--mono); font-size: 13px; min-height: 96px; resize: vertical; }
.code-input { font-family: var(--mono); letter-spacing: 2px; }

/* ── Cards ── */
.card {
  background: var(--glass); border: 1px solid var(--glass-border); border-radius: var(--radius);
  padding: 28px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
}
.card h1 { font-size: 22px; margin: 0 0 6px; }
.card p.lead, p.lead { color: var(--muted); font-size: 14.5px; margin: 0 0 22px; }
.card-solid { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }

/* ── Notices ── */
.notice { border-radius: var(--radius-sm); padding: 12px 14px; font-size: 14px; margin-top: 16px; border: 1px solid; }
.notice.error { border-color: rgba(248, 113, 113, .4); background: rgba(248, 113, 113, .07); color: #fecaca; }
.notice.ok { border-color: rgba(52, 211, 153, .4); background: rgba(52, 211, 153, .07); color: #a7f3d0; }
.notice.warn { border-color: rgba(251, 191, 36, .4); background: rgba(251, 191, 36, .07); color: #fde68a; }
.notice.info { border-color: var(--border-strong); background: var(--card-2); color: var(--muted); }
.notice ul { margin: 6px 0 0; padding-left: 18px; }

/* ── Tabs ── */
.tabs { display: flex; gap: 6px; margin: 20px 0 0; border-bottom: 1px solid var(--border); }
.tab-btn {
  background: none; border: 0; border-bottom: 2px solid transparent; color: var(--muted); font-size: 14px;
  font-weight: 600; padding: 8px 12px; cursor: pointer; font-family: inherit; margin-bottom: -1px;
}
.tab-btn.active { color: var(--text); border-bottom-color: var(--accent); }
.tab-panel { padding-top: 16px; }

/* ── Code / key display ── */
pre.snippet {
  background: #0a0c11; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px;
  font-family: var(--mono); font-size: 12.5px; overflow-x: auto; margin: 0; white-space: pre; color: #c9d4ee;
}
.snippet-box { position: relative; margin-top: 10px; }
.copy-btn {
  position: absolute; top: 8px; right: 8px; background: var(--card-2); color: var(--muted);
  border: 1px solid var(--border-strong); border-radius: 7px; font-size: 12px; padding: 4px 10px; cursor: pointer; font-family: inherit;
}
.copy-btn:hover { color: var(--text); border-color: var(--accent); }
.keybox { background: #0a0c11; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); padding: 14px; font-family: var(--mono); font-size: 14px; word-break: break-all; margin-top: 10px; color: #d9e2f7; }

/* ── Stepper ── */
.stepper { display: flex; gap: 6px; margin-bottom: 28px; }
.step-pill { flex: 1; text-align: center; font-size: 12px; color: var(--muted); padding-top: 8px; position: relative; user-select: none; }
.step-pill::before { content: ""; display: block; height: 3px; border-radius: 2px; background: var(--border); margin-bottom: 7px; }
.step-pill.done::before, .step-pill.active::before { background: var(--gradient); }
.step-pill.active { color: var(--text); font-weight: 600; }
.step-pill.done { color: var(--accent); }

/* ── Data display ── */
.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; font-size: 14px; margin-top: 10px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-family: var(--mono); font-size: 13px; }
.tierbox { background: var(--card-2); border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin-top: 18px; }
.tierbox h3 { margin: 0 0 4px; font-size: 16px; }
.tierbox .sub { color: var(--muted); font-size: 13px; margin-bottom: 10px; }
.limits { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; font-size: 13.5px; }
.limits div { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
.limits b { display: block; font-size: 15px; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 12px; }
.table th, .table td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.04em; }

/* ── Badges / pills ── */
.pill {
  display: inline-block; border: 1px solid var(--border-strong); background: var(--card-2);
  border-radius: 999px; padding: 3px 12px; font-size: 12.5px; color: #c9d4ee; font-weight: 600;
}
.pill.blue { border-color: rgba(79, 124, 255, .55); color: var(--grad-a); }
.pill.green { border-color: rgba(52, 211, 153, .5); color: #a7f3d0; }

/* ── FAQ (details/summary) ── */
details.faq { border: 1px solid var(--border); border-radius: 10px; background: var(--card); margin-top: 10px; }
details.faq summary { cursor: pointer; padding: 13px 16px; font-weight: 600; font-size: 14.5px; list-style: none; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; float: right; color: var(--muted); font-family: var(--mono); }
details.faq[open] summary::after { content: "–"; }
details.faq .answer { padding: 0 16px 14px; font-size: 14px; color: var(--muted); }
details.faq .answer a { color: var(--accent); }

/* ── Prose (terms / privacy / long-form) ── */
.prose h2 { font-size: 19px; margin: 34px 0 10px; }
.prose h3 { font-size: 16px; margin: 24px 0 8px; }
.prose p, .prose li { font-size: 14.5px; color: #c4cbdd; }
.prose ul, .prose ol { padding-left: 22px; }
.prose table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.prose table th, .prose table td { text-align: left; padding: 8px 10px; border: 1px solid var(--border); }
.prose table th { background: var(--card-2); }

/* ── Misc ── */
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid rgba(255,255,255,.3); border-top-color: #fff; border-radius: 50%; animation: zb-spin .7s linear infinite; vertical-align: -2px; margin-right: 7px; }
@keyframes zb-spin { to { transform: rotate(360deg); } }
.hint { color: var(--muted); font-size: 13px; margin-top: 12px; }
.hint code { font-size: 12px; }
.muted { color: var(--muted); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 720px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .wrap, .wrap-wide { padding-top: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}