/* Tunnel Browser — marketing + legal site styles (self-contained).
   Brand: #FFA300 orange on #333 ink, light bg. Matches the portal SPA tokens. */
:root {
  --orange: #ffa300;
  --orange-dark: #e58f00;
  --orange-soft: #fff4dc;
  --orange-tint: #fff8e8;
  --ink: #333333;
  --ink-2: #4b4b4b;
  --bg: #faf9f7;
  --panel: #ffffff;
  --panel-2: #fafaf7;
  --muted: #6b6b6b;
  --border: #e9e8e3;
  --danger: #dc2626;
  --success: #16a34a;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
  --radius: 14px;
  --wrap: 1080px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --orange: #ffb02e;
    --orange-dark: #ffc14d;
    --orange-soft: #3a2e12;
    --orange-tint: #241f10;
    --ink: #e9e7e2;
    --ink-2: #c4c2bc;
    --bg: #0f1115;
    --panel: #171a20;
    --panel-2: #1d212a;
    --muted: #9aa0a8;
    --border: #2b313b;
    --shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.6 "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--orange-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
h1, h2, h3 { color: var(--ink); line-height: 1.15; letter-spacing: -0.01em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); font-weight: 700; }
h3 { font-size: 1.12rem; font-weight: 700; }
p { margin: 0 0 1em; }
em { color: var(--orange-dark); font-style: normal; }

/* ── Header ── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header .bar { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--ink); font-size: 1.05rem; }
.brand:hover { text-decoration: none; }
.brand .dot { width: 26px; height: 26px; border-radius: 8px; background: var(--orange); display: grid; place-items: center; font-size: 15px; }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav a { color: var(--ink-2); font-weight: 500; font-size: 0.95rem; }
.site-nav a:hover { color: var(--ink); text-decoration: none; }
.site-nav .btn { margin-left: 4px; }
.nav-toggle { display: none; background: none; border: 0; font-size: 1.5rem; color: var(--ink); cursor: pointer; }
@media (max-width: 760px) {
  .site-nav { display: none; position: absolute; top: 62px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--panel); border-bottom: 1px solid var(--border); padding: 8px 0; }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 24px; }
  .site-nav .btn { margin: 8px 24px; text-align: center; }
  .nav-toggle { display: block; }
}

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 0.98rem; padding: 11px 20px; border-radius: 10px; border: 1px solid transparent; cursor: pointer; transition: background .15s, border-color .15s, transform .05s; }
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--orange); color: #333; }
.btn-primary:hover { background: var(--orange-dark); }
.btn-ghost { background: var(--panel); color: var(--ink); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--orange); color: var(--orange-dark); }
.btn-lg { padding: 14px 26px; font-size: 1.05rem; }

/* ── Hero ── */
.hero { padding: 72px 0 56px; text-align: center; background: radial-gradient(1200px 400px at 50% -120px, var(--orange-tint), transparent 70%); }
.eyebrow { display: inline-block; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--orange-dark); background: var(--orange-soft); border: 1px solid color-mix(in srgb, var(--orange) 30%, transparent); border-radius: 999px; padding: 5px 14px; margin-bottom: 18px; }
.hero .lead { max-width: 680px; margin: 0 auto 26px; font-size: 1.15rem; color: var(--ink-2); }
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 26px; }
.hero-chips { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.hero-chips span { font-size: 0.85rem; color: var(--muted); background: var(--panel); border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; }
.hero-chips b { color: var(--orange-dark); }

/* ── Sections ── */
.section { padding: 64px 0; }
.band { background: var(--panel-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 680px; margin: 0 auto 40px; text-align: center; }
.section-head .kicker { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--orange-dark); margin: 0 0 8px; }
.section-head p:last-child { color: var(--muted); margin: 0; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.card .ic { font-size: 1.6rem; margin-bottom: 12px; }
.card h3 { margin-bottom: 6px; }
.card p { color: var(--muted); font-size: 0.95rem; margin: 0; }
.card b { color: var(--ink-2); font-weight: 600; }

/* Tier cards */
.tiers { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; }
.tier { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; }
.tier.feature { border-color: var(--orange); box-shadow: 0 0 0 1px var(--orange), var(--shadow); }
.tier .tag { font-size: 0.72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--orange-dark); }
.tier h3 { margin: 4px 0 6px; font-size: 1.25rem; }
.tier .desc { color: var(--muted); font-size: 0.92rem; flex: 1; }
.tier ul { list-style: none; margin: 14px 0 0; padding: 0; }
.tier li { font-size: 0.88rem; color: var(--ink-2); padding: 4px 0 4px 22px; position: relative; }
.tier li::before { content: "✓"; position: absolute; left: 0; color: var(--success); font-weight: 700; }

.checklist { columns: 2; column-gap: 40px; list-style: none; padding: 0; max-width: 720px; margin: 0 auto; }
.checklist li { padding: 8px 0 8px 28px; position: relative; break-inside: avoid; color: var(--ink-2); }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--orange-dark); font-weight: 700; }
@media (max-width: 620px) { .checklist { columns: 1; } }

/* FAQ */
.faq { max-width: 760px; margin: 0 auto; }
.faq details { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 4px 20px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--orange-dark); font-weight: 700; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); padding-bottom: 14px; margin: 0; }

/* CTA band */
.cta-final { text-align: center; padding: 72px 0; }
.cta-final h2 { margin-bottom: 10px; }
.cta-final p { color: var(--muted); max-width: 560px; margin: 0 auto 24px; }

/* ── Footer ── */
.site-footer { background: var(--panel-2); border-top: 1px solid var(--border); padding: 48px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; margin-bottom: 30px; }
.footer-grid h4 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 12px; }
.footer-grid a { display: block; color: var(--ink-2); font-size: 0.92rem; padding: 4px 0; }
.footer-grid a:hover { color: var(--orange-dark); text-decoration: none; }
.footer-blurb { color: var(--muted); font-size: 0.9rem; max-width: 280px; }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; color: var(--muted); font-size: 0.85rem; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* ── Legal / long-form pages ── */
.legal { padding: 48px 0 72px; }
.legal .wrap { max-width: 820px; }
.legal h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 8px; }
.legal .updated { color: var(--muted); font-size: 0.9rem; margin-bottom: 8px; }
.legal .toc { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px 22px; margin: 24px 0 32px; }
.legal .toc ol { margin: 0; padding-left: 20px; columns: 2; column-gap: 30px; }
.legal .toc a { font-size: 0.92rem; }
.legal h2 { font-size: 1.4rem; margin-top: 40px; padding-top: 8px; }
.legal h3 { margin-top: 24px; }
.legal p, .legal li { color: var(--ink-2); }
.legal ul, .legal ol.body { padding-left: 22px; }
.legal li { margin-bottom: 6px; }
.legal .note { background: var(--orange-tint); border-left: 3px solid var(--orange); border-radius: 6px; padding: 12px 16px; margin: 16px 0; font-size: 0.94rem; }
.legal table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 0.92rem; }
.legal th, .legal td { text-align: left; border: 1px solid var(--border); padding: 10px 12px; vertical-align: top; }
.legal th { background: var(--panel-2); font-weight: 600; }
@media (max-width: 620px) { .legal .toc ol { columns: 1; } }
.legal .contact { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 18px 22px; margin-top: 24px; }