/* UDIkey - site público (udikey.com). Design system: escuro + dourado, igual ao app. */
:root {
  --gold: #ffb300;
  --gold-soft: #ffca4d;
  --bg: #100e0a;
  --bg-2: #17140e;
  --surface: #1d1a13;
  --surface-2: #23201a;
  --border: #2f2b22;
  --text: #f5f2ea;
  --muted: #a9a294;
  --dark-ink: #1a1206;
  --max: 1120px;
  --radius: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.gold { color: var(--gold); }

/* ---------- Header ---------- */
header.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(16, 14, 10, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; letter-spacing: -0.3px; }
.brand .logo { width: 34px; height: 34px; border-radius: 9px; background: var(--gold); display: flex; align-items: center; justify-content: center; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--muted); font-size: 15px; font-weight: 600; transition: color .15s; }
.nav-links a:hover { color: var(--text); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--gold); color: var(--dark-ink);
  font-weight: 800; font-size: 15px;
  padding: 11px 20px; border-radius: 999px; border: none; cursor: pointer;
  transition: transform .12s, background .15s;
}
.btn:hover { background: var(--gold-soft); transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.ghost:hover { border-color: var(--gold); color: var(--gold); background: transparent; }
.menu-toggle { display: none; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 84px 0 72px; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(1100px 480px at 80% -10%, rgba(255,179,0,0.16), transparent 60%);
  pointer-events: none;
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--gold); font-weight: 700; font-size: 13px;
  padding: 6px 14px; border-radius: 999px; margin-bottom: 20px;
}
.hero h1 { font-size: clamp(34px, 5vw, 54px); line-height: 1.08; letter-spacing: -1.2px; font-weight: 900; }
.hero p.sub { margin-top: 18px; font-size: clamp(16px, 2vw, 19px); color: var(--muted); max-width: 540px; }
.hero-cta { margin-top: 32px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-note { margin-top: 16px; font-size: 13px; color: var(--muted); }

/* Cartão-telefone ilustrativo */
.phone {
  justify-self: center;
  width: 260px; height: 520px;
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); border-radius: 34px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.45); padding: 16px;
  display: flex; flex-direction: column; gap: 12px;
}
.phone .notch { width: 90px; height: 22px; border-radius: 999px; background: var(--bg); margin: 2px auto 8px; }
.phone .card { background: var(--bg-2); border: 1px solid var(--border); border-radius: 14px; padding: 14px; }
.phone .card .k { font-size: 12px; color: var(--muted); }
.phone .card .v { font-size: 17px; font-weight: 800; margin-top: 2px; }
.phone .pill { background: var(--gold); color: var(--dark-ink); font-weight: 800; text-align: center; padding: 12px; border-radius: 12px; font-size: 14px; }
.phone .row { display: flex; align-items: center; gap: 10px; }
.phone .dot { width: 34px; height: 34px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; }

/* ---------- Seções ---------- */
section { padding: 72px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head .eyebrow { color: var(--gold); font-weight: 800; font-size: 13px; letter-spacing: 1.5px; text-transform: uppercase; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); line-height: 1.15; letter-spacing: -0.6px; margin-top: 10px; font-weight: 900; }
.section-head p { color: var(--muted); margin-top: 14px; font-size: 16px; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.step .num { width: 38px; height: 38px; border-radius: 10px; background: rgba(255,179,0,0.12); color: var(--gold); font-weight: 900; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.step h3 { font-size: 17px; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 14.5px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.svc { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; transition: border-color .15s, transform .15s; }
.svc:hover { border-color: var(--gold); transform: translateY(-3px); }
.svc .ic { width: 46px; height: 46px; border-radius: 12px; background: var(--surface-2); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.svc h3 { font-size: 18px; margin-bottom: 6px; }
.svc p { color: var(--muted); font-size: 14.5px; }

/* Confiança */
.trust { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.trust-item { display: flex; gap: 14px; }
.trust-item .ic { flex: 0 0 auto; width: 44px; height: 44px; border-radius: 12px; background: rgba(255,179,0,0.12); color: var(--gold); display: flex; align-items: center; justify-content: center; }
.trust-item h3 { font-size: 16px; margin-bottom: 4px; }
.trust-item p { color: var(--muted); font-size: 14px; }

/* Para chaveiros */
.partner { position: relative; }
.partner-box {
  background: linear-gradient(120deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); border-radius: 22px;
  padding: 48px; display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 32px; align-items: center;
}
.partner-box h2 { font-size: clamp(24px, 3vw, 34px); letter-spacing: -0.5px; font-weight: 900; }
.partner-box p { color: var(--muted); margin-top: 12px; font-size: 16px; }
.partner-list { margin-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.partner-list li { list-style: none; display: flex; align-items: center; gap: 10px; color: var(--text); font-size: 15px; }
.partner-list .check { color: var(--gold); font-weight: 900; }

/* CTA final */
.final { text-align: center; }
.final h2 { font-size: clamp(28px, 4vw, 44px); letter-spacing: -0.8px; font-weight: 900; }
.final p { color: var(--muted); margin: 14px auto 28px; max-width: 520px; font-size: 17px; }

/* Footer */
footer.ft { border-top: 1px solid var(--border); background: var(--bg-2); padding: 48px 0 34px; }
.ft-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; margin-bottom: 30px; }
.ft-brand p { color: var(--muted); font-size: 14px; margin-top: 12px; max-width: 320px; }
.ft-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); margin-bottom: 14px; }
.ft-col a { display: block; color: var(--text); font-size: 14.5px; margin-bottom: 10px; }
.ft-col a:hover { color: var(--gold); }
.ft-bottom { border-top: 1px solid var(--border); padding-top: 22px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: var(--muted); font-size: 13px; }

/* Páginas legais */
.legal { padding: 56px 0 72px; }
.legal .doc { max-width: 780px; margin: 0 auto; }
.legal h1 { font-size: 32px; letter-spacing: -0.5px; font-weight: 900; }
.legal .updated { color: var(--muted); font-size: 14px; margin-top: 6px; }
.legal .tabs { display: flex; gap: 10px; margin: 26px 0 8px; flex-wrap: wrap; }
.legal .tabs a { border: 1px solid var(--border); border-radius: 999px; padding: 8px 18px; font-weight: 700; font-size: 14px; color: var(--muted); }
.legal .tabs a.on { background: var(--gold); color: var(--dark-ink); border-color: var(--gold); }
.legal section.blk { padding: 22px 0; border-bottom: 1px solid var(--border); }
.legal section.blk:last-child { border-bottom: none; }
.legal h2 { color: var(--gold); font-size: 18px; margin-bottom: 10px; }
.legal p { color: var(--text); margin-bottom: 10px; font-size: 15px; }
.legal .back { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-weight: 700; font-size: 14px; margin-bottom: 18px; }
.legal .back:hover { color: var(--gold); }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .phone { display: none; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: 1fr 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .partner-box { grid-template-columns: 1fr; padding: 32px; }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .cards, .steps { grid-template-columns: 1fr; }
  .ft-grid { grid-template-columns: 1fr; }
  section { padding: 54px 0; }
}