:root {
  --bg: #0b0f14;
  --panel: #121821;
  --panel2: #161d28;
  --ink: #e8eef6;
  --muted: #8b97a7;
  --accent: #4ade80;
  --accent2: #22d3ee;
  --warn: #f87171;
  --line: #223;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.55 -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
a { color: var(--accent2); text-decoration: none; }
.muted { color: var(--muted); }
.warn { color: var(--warn); }

.hero {
  background: radial-gradient(1200px 500px at 70% -10%, #15314a 0%, transparent 60%), var(--bg);
  border-bottom: 1px solid var(--line);
  padding-bottom: 64px;
}
.topnav {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 20px 28px;
  max-width: 1080px;
  margin: 0 auto;
}
.brand { font-size: 20px; letter-spacing: 0.5px; margin-right: auto; }
.hero-inner { max-width: 1080px; margin: 40px auto 0; padding: 0 28px; }
.hero h1 { font-size: 52px; line-height: 1.05; margin: 0 0 18px; }
.hero h1 span { color: var(--accent); }
.lede { font-size: 19px; max-width: 640px; color: #cdd7e3; }
.lede b { color: var(--accent); }
.hero-cta { margin-top: 28px; display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  font-size: 15px;
}
.btn.primary { background: var(--accent); color: #06210f; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; border-color: #2c3a4d; color: var(--ink); }
.btn.ghost:hover { border-color: var(--accent2); }

.band { max-width: 1080px; margin: 0 auto; padding: 64px 28px; }
.band.alt { background: var(--panel); border-radius: 18px; margin-top: 24px; }
.band h2 { font-size: 30px; margin: 0 0 28px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.card { background: var(--panel2); border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.card h3 { margin: 0 0 10px; font-size: 17px; color: var(--accent2); }
.card p { margin: 0; color: #c3cdd9; }

.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.plan {
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px 22px;
  text-align: center;
}
.plan-name { font-size: 16px; color: var(--muted); }
.plan-price { font-size: 40px; font-weight: 700; margin: 8px 0; }
.plan-sub { color: var(--muted); margin-bottom: 18px; }

.checkout { margin-top: 28px; background: var(--panel2); border: 1px solid var(--line); border-radius: 14px; padding: 24px; }
.checkout h3 { margin-top: 0; }
.chains { display: flex; gap: 12px; flex-wrap: wrap; }
.invoice .amount { font-size: 30px; font-weight: 700; color: var(--accent); margin: 6px 0 14px; }
.addr, .keybox {
  display: block;
  background: #0a0e13;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  font-family: ui-monospace, "Cascadia Code", monospace;
  word-break: break-all;
  color: var(--accent2);
}
.status { margin-top: 14px; font-weight: 600; }
.paid h3 { color: var(--accent); }
.keybox { color: var(--accent); margin: 10px 0; font-size: 16px; }

.cabinet { display: flex; gap: 12px; max-width: 560px; }
.cabinet input {
  flex: 1;
  background: #0a0e13;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--ink);
  font-family: ui-monospace, monospace;
}
.cab-result { margin-top: 18px; }
.cab-card { background: var(--panel2); border: 1px solid var(--line); border-radius: 12px; padding: 18px; max-width: 560px; }
.cab-card.ok { border-color: #1f6b3f; }
.cab-card.warn { border-color: #7a2e2e; }
.cab-card div { margin-bottom: 6px; }

.foot {
  max-width: 1080px;
  margin: 40px auto 0;
  padding: 28px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 640px) {
  .hero h1 { font-size: 38px; }
  .cabinet { flex-direction: column; }
}

.nav-cta { color: #4ade80 !important; font-weight: 600; }

/* --- Phase 4.1: live stats, FAQ, ToS --- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-top: 18px; }
.stat { background: rgba(126, 240, 221, 0.05); border: 1px solid rgba(126, 240, 221, 0.18); border-radius: 12px; padding: 18px 16px; text-align: center; }
.stat strong { display: block; font-size: 28px; color: #7ef0dd; margin-bottom: 6px; font-variant-numeric: tabular-nums; }
.stat span { color: #9ab2ad; font-size: 13px; }
.faq-item { border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 10px; margin: 10px auto; max-width: 760px; background: rgba(255, 255, 255, 0.02); }
.faq-item summary { cursor: pointer; padding: 14px 18px; font-weight: 600; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: "+"; color: #7ef0dd; margin-right: 10px; }
.faq-item[open] summary::before { content: "−"; }
.faq-item p { padding: 0 18px 16px 40px; color: #b8c7c3; margin: 0; line-height: 1.55; }
.tos { max-width: 760px; margin: 16px auto; padding-left: 22px; color: #b8c7c3; line-height: 1.6; }
.tos li { margin-bottom: 12px; }
.tos b { color: #e7f3f0; }
.foot a { color: #7ef0dd; text-decoration: none; }