/* ───────────────────────────── tokens ───────────────────────────── */
:root {
  --bg: #0b0e14;
  --bg-2: #10141c;
  --bg-3: #161b25;
  --line: #222a37;
  --line-2: #2c3546;
  --fg: #e8ecf3;
  --fg-2: #a7b0c0;
  --fg-3: #6c7688;
  --accent: #f2b544;
  --accent-2: #ffd27a;
  --accent-dim: rgba(242, 181, 68, 0.12);
  --green: #3ddc97;
  --red: #ff6b6b;
  --blue: #7aa2ff;
  --radius: 14px;
  --radius-sm: 9px;
  --sans: "Inter", "Noto Sans SC", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --max: 1180px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(1200px 500px at 80% -10%, rgba(242, 181, 68, 0.08), transparent 60%),
    radial-gradient(900px 400px at 0% 20%, rgba(122, 162, 255, 0.05), transparent 60%);
}
a { color: inherit; text-decoration: none; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--fg-3); }
.label {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-3);
  font-weight: 600;
}
code { font-family: var(--mono); background: var(--bg-3); padding: 1px 6px; border-radius: 5px; font-size: 0.9em; }

/* ───────────────────────────── demo banner ───────────────────────────── */
.demo-banner {
  background: var(--accent-dim);
  border-bottom: 1px solid rgba(242, 181, 68, 0.35);
  color: var(--accent-2);
  text-align: center;
  font-size: 13px;
  padding: 8px 16px;
}

/* ───────────────────────────── topbar ───────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 14px 28px;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 8px;
  display: block; object-fit: cover;
}
.brand-name { font-weight: 700; letter-spacing: 0.12em; }
.brand-sub { color: var(--fg-3); font-size: 12px; margin-left: 4px; }
.nav { display: flex; gap: 22px; font-size: 14px; color: var(--fg-2); }
.nav a:hover { color: var(--fg); }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.net-badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12px; font-family: var(--mono);
  color: var(--fg-2); padding: 6px 10px;
  border: 1px solid var(--line-2); border-radius: 999px;
}
.net-badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--fg-3); }
.net-badge.ok i { background: var(--green); box-shadow: 0 0 8px var(--green); }
.net-badge.bad i { background: var(--red); }

/* ───────────────────────────── buttons ───────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 9px 16px; border-radius: 10px;
  font: 600 14px var(--sans);
  border: 1px solid var(--line-2);
  background: var(--bg-3); color: var(--fg);
  cursor: pointer; transition: 0.15s;
  white-space: nowrap;
}
.btn:hover { border-color: var(--fg-3); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #0b0e14; }
.btn-primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
.btn-ghost { background: transparent; }
.btn-danger { background: rgba(255, 107, 107, 0.12); border-color: rgba(255, 107, 107, 0.4); color: var(--red); }
.btn-lg { padding: 13px 22px; font-size: 15px; border-radius: 12px; }

/* ───────────────────────────── layout ───────────────────────────── */
main { max-width: var(--max); margin: 0 auto; padding: 0 28px 80px; }
.section { padding-top: 88px; }
.section-head { margin-bottom: 26px; }
.section-head h2 { margin: 0 0 6px; font-size: 26px; letter-spacing: -0.01em; }
.section-head p { margin: 0; color: var(--fg-2); max-width: 640px; }

/* ───────────────────────────── hero ───────────────────────────── */
.hero {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center;
  padding: 84px 0 20px;
}
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.18em; color: var(--accent); margin: 0 0 18px; }
.hero h1 { font-size: 56px; line-height: 1.08; margin: 0 0 22px; letter-spacing: -0.02em; }
.lede { font-size: 17px; color: var(--fg-2); margin: 0 0 30px; max-width: 520px; }
.hero-actions { display: flex; gap: 12px; }

.epoch-card {
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  border: 1px solid var(--line-2);
  border-radius: 20px;
  padding: 26px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}
.epoch-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 18px; }
.epoch-num { font-family: var(--mono); font-size: 26px; font-weight: 600; color: var(--accent); }
.countdown { margin-bottom: 22px; }
.countdown-digits {
  display: flex; align-items: baseline; gap: 6px;
  font-family: var(--mono); font-size: 54px; font-weight: 600; line-height: 1.1;
  margin: 6px 0 12px; letter-spacing: 0.02em;
}
.countdown-digits i { color: var(--fg-3); font-style: normal; font-size: 40px; }
.progress { height: 4px; background: var(--bg-3); border-radius: 999px; overflow: hidden; }
.progress div { height: 100%; width: 0; background: var(--accent); transition: width 1s linear; }
.epoch-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 24px; padding-top: 18px; border-top: 1px solid var(--line); }
.epoch-stats strong { display: block; font-family: var(--mono); font-size: 22px; font-weight: 600; margin-top: 2px; }
.epoch-stats small { font-size: 12px; color: var(--fg-3); font-weight: 500; }

/* ───────────────────────────── me ───────────────────────────── */
.me-grid { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.me-empty { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.me-empty p { margin: 0; color: var(--fg-2); }
.me-cards { display: grid; grid-template-columns: repeat(5, 1fr) 1.3fr; gap: 14px; }
.stat { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px; }
.stat strong { display: block; font-family: var(--mono); font-size: 24px; font-weight: 600; margin: 6px 0 2px; }
.stat small { color: var(--fg-3); font-size: 12px; }
.stat-accent { border-color: rgba(242, 181, 68, 0.4); background: var(--accent-dim); }
.stat-accent strong { color: var(--accent-2); }
.me-actions { display: flex; flex-direction: column; gap: 10px; justify-content: center; }
.status-pill {
  align-self: flex-start;
  font-family: var(--mono); font-size: 12px;
  padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--line-2); color: var(--fg-2);
}
.status-pill.ok { color: var(--green); border-color: rgba(61, 220, 151, 0.4); background: rgba(61, 220, 151, 0.08); }
.status-pill.warn { color: var(--red); border-color: rgba(255, 107, 107, 0.4); background: rgba(255, 107, 107, 0.08); }
.hint { margin: 0; font-size: 12px; color: var(--fg-3); }

.tenure-curve { margin-top: 18px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; }
.curve-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.tenure-curve svg { width: 100%; height: 140px; display: block; }
.curve-axis { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 11px; color: var(--fg-3); margin-top: 6px; }

/* ───────────────────────────── tables ───────────────────────────── */
.table-wrap { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { padding: 13px 18px; text-align: left; border-bottom: 1px solid var(--line); }
.table th { font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); font-weight: 600; background: var(--bg-3); }
.table tr:last-child td { border-bottom: 0; }
.table td a.mono { white-space: nowrap; }
.table td.num, .table th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
.table tr.me td { background: var(--accent-dim); }
.table-empty { padding: 28px; text-align: center; color: var(--fg-3); }
.tag { display: inline-block; white-space: nowrap; font-family: var(--mono); font-size: 11px; padding: 2px 8px; border-radius: 6px; border: 1px solid var(--line-2); color: var(--fg-2); }
.tag.ok { color: var(--green); border-color: rgba(61, 220, 151, 0.4); }
.tag.live { color: var(--accent); border-color: rgba(242, 181, 68, 0.4); }
.tag.roll { color: var(--blue); border-color: rgba(122, 162, 255, 0.4); }
.bar { display: inline-block; height: 6px; background: var(--accent); border-radius: 3px; vertical-align: middle; margin-right: 8px; opacity: 0.8; }

/* ───────────────────────────── how ───────────────────────────── */
.how-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.how-card { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.how-num { font-family: var(--mono); color: var(--accent); font-size: 12px; letter-spacing: 0.1em; }
.how-card h3 { margin: 10px 0 8px; font-size: 17px; }
.how-card p { margin: 0; color: var(--fg-2); font-size: 14px; }
.params { margin-top: 18px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; }
.params-head { display: flex; justify-content: space-between; margin-bottom: 12px; }
.params-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin: 0; }
.params-grid dt { font-size: 12px; color: var(--fg-3); }
.params-grid dd { margin: 2px 0 0; font-family: var(--mono); font-size: 16px; font-weight: 600; }

/* ───────────────────────────── audit ───────────────────────────── */
.audit-box { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.audit-input { display: flex; gap: 10px; }
.input {
  flex: 1; padding: 11px 14px; border-radius: 10px;
  background: var(--bg); border: 1px solid var(--line-2); color: var(--fg); font-size: 14px;
}
.input:focus { outline: none; border-color: var(--accent); }
.audit-result { margin-top: 18px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.audit-row { background: var(--bg-3); border-radius: var(--radius-sm); padding: 12px 14px; }
.audit-row span { display: block; font-size: 12px; color: var(--fg-3); }
.audit-row strong { font-family: var(--mono); font-size: 16px; }
.audit-verdict { grid-column: 1 / -1; padding: 12px 14px; border-radius: var(--radius-sm); font-weight: 600; }
.audit-verdict.ok { background: rgba(61, 220, 151, 0.1); color: var(--green); }
.audit-verdict.bad { background: rgba(255, 107, 107, 0.1); color: var(--red); }
.audit-verdict.na { background: var(--bg-3); color: var(--fg-2); }
#btn-audit-exec { grid-column: 1 / -1; justify-self: start; }

/* ───────────────────────────── transparency ───────────────────────────── */
.trans-grid { display: grid; grid-template-columns: 1.1fr 0.9fr 1.2fr; gap: 14px; }
.trans-card { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.addr-list { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-direction: column; gap: 10px; }
.addr-list li { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; }
.addr-list li span { color: var(--fg-2); }
.addr-list a { color: var(--blue); font-size: 12.5px; word-break: break-all; text-align: right; }
.flow { margin-top: 12px; display: flex; flex-direction: column; gap: 9px; }
.flow-row { display: flex; justify-content: space-between; font-size: 13.5px; }
.flow-row span { color: var(--fg-2); }
.flow-row strong { font-family: var(--mono); font-weight: 600; }
.risk-list { margin: 12px 0 0; padding-left: 18px; color: var(--fg-2); font-size: 13.5px; display: flex; flex-direction: column; gap: 8px; }
.risk-list b { color: var(--fg); }

/* ───────────────────────────── footer / toast ───────────────────────────── */
.footer {
  max-width: var(--max); margin: 0 auto; padding: 28px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: var(--fg-2);
}
.footer-links { display: flex; gap: 18px; }
.footer-links a:hover { color: var(--fg); }
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%);
  background: var(--bg-3); border: 1px solid var(--line-2); color: var(--fg);
  padding: 12px 18px; border-radius: 12px; font-size: 14px; z-index: 50;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  max-width: 90vw;
}
.toast.err { border-color: rgba(255, 107, 107, 0.5); }
.toast.ok { border-color: rgba(61, 220, 151, 0.5); }

/* ───────────────────────────── responsive ───────────────────────────── */
@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr; padding-top: 48px; }
  .hero h1 { font-size: 42px; }
  .me-cards { grid-template-columns: repeat(3, 1fr); }
  .how-grid { grid-template-columns: repeat(2, 1fr); }
  .params-grid { grid-template-columns: repeat(3, 1fr); }
  .trans-grid { grid-template-columns: 1fr; }
  .nav { display: none; }
}
@media (max-width: 640px) {
  main, .topbar, .footer { padding-left: 16px; padding-right: 16px; }
  .brand-sub { display: none; }
  .hero h1 { font-size: 34px; }
  .countdown-digits { font-size: 40px; }
  .me-cards { grid-template-columns: 1fr 1fr; }
  .me-actions { grid-column: 1 / -1; }
  .how-grid, .params-grid { grid-template-columns: 1fr 1fr; }
  .audit-result { grid-template-columns: 1fr 1fr; }
  .table th, .table td { padding: 10px 12px; }
  .hero-actions { flex-direction: column; }
  .footer { flex-direction: column; gap: 12px; }
}