/* FNN Dev — shared styles for sub-pages (Privacy, Support, About) */
:root {
  --bg: #0a0c10; --bg-2: #0d1016; --surface: #12161e; --surface-2: #161b25;
  --border: rgba(255,255,255,0.08); --border-strong: rgba(255,255,255,0.14);
  --text: #eef1f6; --text-dim: #a2abba; --text-faint: #6b7585;
  --accent: #4d9bff; --accent-soft: rgba(77,155,255,0.12); --accent-line: rgba(77,155,255,0.30);
  --maxw: 1140px; --radius: 14px;
  --font-sans: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: hidden; }
::selection { background: var(--accent-soft); color: #fff; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }
.prose-wrap { max-width: 760px; }

/* background */
.bg-layer { position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(120% 80% at 50% 0%, #000 30%, transparent 72%);
          mask-image: radial-gradient(120% 80% at 50% 0%, #000 30%, transparent 72%); }
.bg-layer::after { content:""; position:absolute; inset:0;
  background: radial-gradient(60% 36% at 50% -6%, var(--accent-soft), transparent 72%); }
.page { position: relative; z-index: 1; }

/* nav */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 88%, transparent); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link { color: var(--text-dim); font-size: 14px; font-weight: 450; padding: 8px 12px; border-radius: 8px; transition: color .15s, background .15s; }
.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.nav-link[aria-current="page"] { color: var(--text); }
.nav-right { display: flex; align-items: center; gap: 14px; }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; flex: 0 0 auto;
  background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 92%, #fff 8%), color-mix(in srgb, var(--accent) 70%, #000 30%));
  box-shadow: 0 0 0 1px rgba(255,255,255,0.10) inset, 0 6px 18px -8px var(--accent); }
.brand-name { font-weight: 600; font-size: 15.5px; letter-spacing: -0.01em; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-sans); white-space: nowrap;
  font-size: 14px; font-weight: 500; padding: 10px 16px; border-radius: 9px; cursor: pointer;
  border: 1px solid transparent; transition: transform .12s, background .15s, border-color .15s; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #061018; font-weight: 600;
  box-shadow: 0 1px 0 rgba(255,255,255,0.25) inset, 0 10px 24px -12px var(--accent); }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 88%, #fff 12%); }
.btn-ghost { background: rgba(255,255,255,0.03); border-color: var(--border-strong); color: var(--text); }
.btn-ghost:hover { background: rgba(255,255,255,0.07); border-color: var(--text-faint); }
.btn-sm { padding: 8px 13px; font-size: 13px; }

.eyebrow { font-family: var(--font-mono); font-size: 11.5px; font-weight: 500; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--accent); }
.pill { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 12px; white-space: nowrap;
  color: var(--text-dim); padding: 6px 12px 6px 10px; border-radius: 999px; border: 1px solid var(--border); background: rgba(255,255,255,0.02); }
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

/* page header */
.page-head { padding: clamp(54px, 8vw, 96px) 0 clamp(28px, 4vw, 44px); }
.crumbs { display:flex; align-items:center; gap:8px; white-space:nowrap; font-family: var(--font-mono); font-size:12px; color: var(--text-faint); margin-bottom: 22px; }
.crumbs a:hover { color: var(--text-dim); }
.crumbs .sep { opacity:.5; }
.page-head h1 { font-size: clamp(2.1rem, 4.2vw, 3.1rem); letter-spacing:-0.03em; font-weight:600; margin: 16px 0 0; line-height:1.04; }
.page-head .sub { color: var(--text-dim); font-size: clamp(1rem,1.4vw,1.12rem); line-height:1.6; margin: 18px 0 0; max-width: 56ch; text-wrap: pretty; }
.page-head .meta { display:flex; gap:14px; flex-wrap:wrap; margin-top: 24px; }

/* prose */
.prose { color: var(--text-dim); font-size: 16px; line-height: 1.72; }
.prose h2 { color: var(--text); font-size: 1.05rem; font-weight:600; letter-spacing:-0.01em; margin: 40px 0 12px; }
.prose h2:first-child { margin-top: 0; }
.prose p { margin: 0 0 16px; text-wrap: pretty; }
.prose strong { color: var(--text); font-weight: 600; }
.prose a.link { color: var(--accent); }
.prose a.link:hover { text-decoration: underline; }
.prose ul { margin: 0 0 16px; padding-left: 0; list-style: none; }
.prose li { position: relative; padding-left: 24px; margin-bottom: 9px; }
.prose li::before { content:""; position:absolute; left:4px; top:11px; width:5px; height:5px; border-radius:50%; background: var(--accent); }

.section-divider { height:1px; background: linear-gradient(90deg, transparent, var(--border), transparent); margin: 8px 0; }

/* policy doc cards */
.policy { border:1px solid var(--border); border-radius: var(--radius); background: rgba(255,255,255,0.012);
  padding: clamp(26px, 4vw, 44px); margin-bottom: 22px; }
.policy-head { display:flex; align-items:center; gap:14px; padding-bottom: 22px; margin-bottom: 28px; border-bottom: 1px solid var(--border); }
.policy-head .pico { width:44px; height:44px; border-radius:11px; flex:0 0 auto; }
.policy-head .pt { font-size:18px; font-weight:600; letter-spacing:-0.015em; }
.policy-head .pd { font-family:var(--font-mono); font-size:12px; color: var(--text-faint); margin-top:3px; }

/* support cards */
.cards { display:grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap:16px; }
.card { border:1px solid var(--border); border-radius: var(--radius); background: linear-gradient(180deg, var(--surface), var(--bg-2));
  padding: 26px; transition: border-color .18s, transform .18s; }
.card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.card .cico { width:42px; height:42px; border-radius:11px; display:grid; place-items:center; background: var(--accent-soft); color: var(--accent); margin-bottom:18px; }
.card h3 { font-size:16px; font-weight:600; margin:0 0 8px; letter-spacing:-0.01em; }
.card p { color: var(--text-dim); font-size:14px; line-height:1.6; margin:0; }
.card a.cta { display:inline-flex; align-items:center; gap:6px; margin-top:16px; color: var(--accent); font-size:14px; font-weight:500; }
.card a.cta:hover { gap:9px; }

/* contact band */
.contact-band { border:1px solid var(--border-strong); border-radius: 18px; padding: clamp(28px,4vw,40px);
  background: radial-gradient(120% 140% at 0% 0%, var(--accent-soft), transparent 60%), linear-gradient(180deg, var(--surface), var(--bg-2));
  display:flex; align-items:center; justify-content:space-between; gap:28px; flex-wrap:wrap; }
.contact-band .ct h2 { font-size: clamp(1.3rem,2.4vw,1.7rem); letter-spacing:-0.02em; margin:0; font-weight:600; }
.contact-band .ct p { color: var(--text-dim); margin:10px 0 0; font-size:15px; }
.mail-btn { font-family: var(--font-mono); }

/* faq */
.faq { border-top:1px solid var(--border); }
.faq details { border-bottom:1px solid var(--border); }
.faq summary { cursor:pointer; list-style:none; padding: 22px 0; display:flex; align-items:center; justify-content:space-between; gap:20px;
  font-size:16px; font-weight:500; color: var(--text); }
.faq summary::-webkit-details-marker { display:none; }
.faq summary .pm { width:20px; height:20px; flex:0 0 auto; position:relative; transition: transform .2s; color: var(--text-faint); }
.faq details[open] summary .pm { transform: rotate(45deg); color: var(--accent); }
.faq .ans { color: var(--text-dim); font-size:15px; line-height:1.7; padding: 0 0 24px; max-width: 64ch; }

/* footer */
.footer { border-top:1px solid var(--border); padding: 48px 0 56px; margin-top: clamp(56px,8vw,96px); }
.footer-inner { display:flex; justify-content:space-between; gap:32px; flex-wrap:wrap; }
.footer-brand-note { font-size:13px; color: var(--text-dim); max-width: 30ch; line-height:1.55; margin-top:14px; }
.footer-cols { display:flex; gap:72px; flex-wrap:wrap; }
.footer-col h4 { font-family:var(--font-mono); font-size:11px; letter-spacing:0.16em; text-transform:uppercase; color: var(--text-faint); margin:0 0 14px; font-weight:500; }
.footer-col a { display:block; color: var(--text-dim); font-size:14px; padding:5px 0; transition:color .15s; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display:flex; justify-content:space-between; align-items:center; gap:16px; margin-top:44px; padding-top:24px; border-top:1px solid var(--border); flex-wrap:wrap; }

/* about page */
.about-lead { display:grid; grid-template-columns: 1.5fr 1fr; gap:48px; align-items:start; padding-bottom: clamp(40px,6vw,72px); }
.about-lead .prose p { font-size:17px; }
.about-lead .prose p.big { font-size: clamp(1.15rem,1.7vw,1.35rem); line-height:1.55; color: var(--text); font-weight:400; margin-bottom:22px; text-wrap:pretty; }
.about-aside { position:sticky; top:88px; border:1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--bg-2)); padding: 26px; }
.about-aside .nm { font-size:17px; font-weight:600; letter-spacing:-0.01em; }
.about-aside .rl { font-family:var(--font-mono); font-size:12px; color: var(--accent); letter-spacing:0.04em; margin-top:4px; }
.about-aside .creds { list-style:none; margin:20px 0 0; padding:18px 0 0; border-top:1px solid var(--border); display:flex; flex-direction:column; gap:14px; }
.about-aside .creds li { display:flex; gap:12px; font-size:13.5px; color: var(--text-dim); line-height:1.45; }
.about-aside .creds li .ic { color: var(--accent); flex:0 0 auto; margin-top:1px; }

.stat-row { display:grid; grid-template-columns: repeat(4,1fr); gap:16px; margin: clamp(8px,2vw,16px) 0 clamp(48px,7vw,80px); }
.stat-box { border:1px solid var(--border); border-radius: var(--radius); padding: 24px; background: rgba(255,255,255,0.012); }
.stat-box .num { font-size: clamp(2rem,3.4vw,2.6rem); font-weight:600; letter-spacing:-0.03em; line-height:1; font-variant-numeric:tabular-nums; }
.stat-box .num .u { font-size:0.5em; color: var(--text-faint); font-weight:500; margin-left:4px; letter-spacing:0; }
.stat-box .lbl { color: var(--text-dim); font-size:13.5px; margin-top:12px; line-height:1.4; }

.principles { display:grid; grid-template-columns: repeat(3,1fr); gap:16px; margin-top: 8px; }
.principle { border:1px solid var(--border); border-radius: var(--radius); padding: 26px; background: rgba(255,255,255,0.012); transition:border-color .18s; }
.principle:hover { border-color: var(--border-strong); }
.principle .pn { font-family:var(--font-mono); font-size:12px; color: var(--text-faint); }
.principle h3 { font-size:16px; font-weight:600; margin:14px 0 8px; letter-spacing:-0.01em; }
.principle p { color: var(--text-dim); font-size:14px; line-height:1.6; margin:0; }

.about-h2 { font-size: clamp(1.5rem,2.6vw,1.9rem); letter-spacing:-0.025em; font-weight:600; margin: 0 0 8px; }
.about-sub { color: var(--text-dim); font-size:15px; margin:0 0 28px; max-width:56ch; }

@media (max-width: 820px) {
  .about-lead { grid-template-columns: 1fr; gap:32px; }
  .about-aside { position:static; }
  .stat-row { grid-template-columns: repeat(2,1fr); }
  .principles { grid-template-columns: 1fr; }
}
.footer-bottom .copy { font-size:13px; color: var(--text-faint); }
.footer-bottom .copy.mono { font-family:var(--font-mono); font-size:12px; }

@media (max-width: 760px) { .nav-links { display:none; } }
@media (max-width: 560px) { .container { padding: 0 20px; } }