/* Shared styles for SettlePact's guide pages (crypto-escrow.html etc.).
   Tokens mirror public/index.html so the guides and the app look like one site. */
:root {
  --bg: #F5F7FB;
  --surface: #FFFFFF;
  --surface-2: #F2F5FA;
  --border: rgba(15, 23, 42, 0.10);
  --border-strong: rgba(15, 23, 42, 0.18);
  --text: #0B1324;
  --text-2: #4A5568;
  --text-3: #7A8698;
  --accent: #0891B2;
  --accent-soft: rgba(8, 145, 178, 0.10);
  --success: #059669;
  --success-soft: rgba(5, 150, 105, 0.10);
  --warn: #B45309;
  --warn-soft: rgba(217, 119, 6, 0.11);
  --brand-grad: linear-gradient(135deg, #0891B2 0%, #059669 100%);
  --glow-1: rgba(8, 145, 178, 0.08);
  --glow-2: rgba(5, 150, 105, 0.06);
  --shadow: 0 8px 24px -10px rgba(15, 23, 42, 0.18);
  --font: 'Plus Jakarta Sans', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #070A12;
  --surface: #0D1322;
  --surface-2: #121A2D;
  --border: rgba(148, 163, 184, 0.13);
  --border-strong: rgba(148, 163, 184, 0.26);
  --text: #E9EEF7;
  --text-2: #A4AFC3;
  --text-3: #6D7990;
  --accent: #22D3EE;
  --accent-soft: rgba(34, 211, 238, 0.12);
  --success: #34D399;
  --success-soft: rgba(52, 211, 153, 0.12);
  --warn: #FBBF24;
  --warn-soft: rgba(251, 191, 36, 0.12);
  --brand-grad: linear-gradient(135deg, #22D3EE 0%, #10B981 100%);
  --glow-1: rgba(34, 211, 238, 0.10);
  --glow-2: rgba(16, 185, 129, 0.08);
  --shadow: 0 8px 24px -8px rgba(0, 0, 0, 0.55);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(1100px 520px at 50% -180px, var(--glow-1), transparent 70%),
    radial-gradient(700px 400px at 92% 8%, var(--glow-2), transparent 70%),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.wrap { width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 20px; }
/* Readable line length, kept on the same left edge as the hero and cards. */
.prose > * { max-width: 720px; }
@media (max-width: 719px) { .wrap { padding: 0 16px; } body { font-size: 16px; } }

/* Header */
.lp-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.lp-header .wrap { display: flex; align-items: center; gap: 16px; height: 64px; }
.lp-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; color: var(--text); text-decoration: none; }
.lp-brand img { width: 32px; height: 32px; border-radius: 9px; }
.lp-nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.lp-nav a { color: var(--text-2); font-size: 14.5px; font-weight: 600; padding: 8px 10px; border-radius: 10px; text-decoration: none; white-space: nowrap; }
.lp-nav a:hover { color: var(--text); background: var(--surface-2); }
@media (max-width: 719px) { .lp-nav a.lp-navlink { display: none; } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 20px; border-radius: 12px;
  font: 700 15px/1 var(--font); text-decoration: none; white-space: nowrap;
}
.btn-primary { background: var(--brand-grad); color: #fff !important; box-shadow: 0 6px 20px -8px rgba(8, 145, 178, 0.6); }
.btn-primary:hover { filter: brightness(1.05); }
.btn-secondary { background: var(--surface); color: var(--text) !important; border: 1px solid var(--border-strong); }
.lp-nav .btn { min-height: 38px; padding: 0 14px; font-size: 14px; }

/* Hero */
.lp-hero { padding: 64px 0 40px; }
.crumbs { font-size: 13.5px; color: var(--text-3); margin-bottom: 18px; }
.crumbs a { color: var(--text-3); }
.lp-hero h1 { font-size: clamp(32px, 5.2vw, 50px); line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 18px; font-weight: 800; }
.grad { background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: clamp(17px, 2.2vw, 19.5px); color: var(--text-2); margin: 0 0 26px; max-width: 680px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-points { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 22px; padding: 0; list-style: none; color: var(--text-2); font-size: 14.5px; }
.hero-points li::before { content: "✓"; color: var(--success); font-weight: 800; margin-right: 7px; }
@media (max-width: 719px) { .lp-hero { padding: 36px 0 24px; } .hero-actions .btn { flex: 1 1 100%; } }

/* Sections */
.section { padding: 34px 0; }
.section h2 { font-size: clamp(24px, 3.4vw, 32px); line-height: 1.2; letter-spacing: -0.015em; margin: 0 0 14px; font-weight: 800; }
.section h3 { font-size: 18.5px; margin: 26px 0 8px; font-weight: 700; }
.section p { margin: 0 0 14px; color: var(--text-2); }
.section p strong, .section li strong { color: var(--text); }
.section ul, .section ol { color: var(--text-2); padding-left: 22px; margin: 0 0 14px; }
.section li { margin-bottom: 6px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 22px; box-shadow: var(--shadow); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 18px; }
.step { position: relative; }
.step-num { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font-weight: 800; font-size: 14px; margin-bottom: 10px; }
.step h3 { margin: 0 0 6px; font-size: 17px; }
.step p { font-size: 15px; margin: 0; }
@media (max-width: 859px) { .steps { grid-template-columns: 1fr; } }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 18px; }
.grid-2 .card h3 { margin-top: 0; }
.grid-2 .card p { font-size: 15px; margin: 0; }
@media (max-width: 719px) { .grid-2 { grid-template-columns: 1fr; } }

/* Callouts */
.note { border-radius: 14px; padding: 14px 16px; margin: 18px 0; font-size: 15px; color: var(--text); }
.note-warn { background: var(--warn-soft); border: 1px solid color-mix(in srgb, var(--warn) 30%, transparent); }
.note-good { background: var(--success-soft); border: 1px solid color-mix(in srgb, var(--success) 30%, transparent); }
.note strong { color: var(--text); }

/* Tables */
.table-wrap { overflow-x: auto; margin: 16px 0; border: 1px solid var(--border); border-radius: 16px; background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
thead th { font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-3); background: var(--surface-2); }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
tbody th { font-weight: 700; }
td.num, th.num { text-align: right; font-family: var(--mono); white-space: nowrap; }
td.us { background: var(--success-soft); color: var(--text); font-weight: 600; }
.table-note { font-size: 13.5px; color: var(--text-3); margin-top: -6px; }
/* Every column stays on screen on phones, so comparisons can be read side by side. */
@media (max-width: 719px) {
  table { font-size: 14px; }
  th, td { padding: 10px 9px; }
  thead th { font-size: 11.5px; letter-spacing: 0.02em; }
  td.num, th.num { white-space: normal; }
}

/* FAQ */
.faq details { border: 1px solid var(--border); border-radius: 14px; background: var(--surface); margin-bottom: 10px; }
.faq summary { cursor: pointer; padding: 16px 18px; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--text-3); font-weight: 600; font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq .answer { padding: 0 18px 16px; color: var(--text-2); }
.faq .answer p { margin: 0; }

/* Closing call to action */
.cta-band { text-align: center; padding: 34px 22px; margin: 20px 0 10px; }
.cta-band h2 { margin-bottom: 8px; }
.cta-band p { margin: 0 auto 18px; max-width: 560px; }

/* Footer */
.lp-footer { border-top: 1px solid var(--border); margin-top: 40px; padding: 32px 0 40px; font-size: 14.5px; color: var(--text-3); }
.lp-footer .cols { display: flex; flex-wrap: wrap; gap: 28px 56px; margin-bottom: 22px; }
.lp-footer h4 { margin: 0 0 8px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-3); }
.lp-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.lp-footer a { color: var(--text-2); text-decoration: none; }
.lp-footer a:hover { color: var(--text); text-decoration: underline; }