:root {
  --bg: #050816;
  --panel: #0b1020;
  --panel-soft: #10182c;
  --line: rgba(148, 163, 184, 0.28);
  --text: #f8fafc;
  --muted: #94a3b8;
  --cyan: #22d3ee;
  --blue: #38bdf8;
  --ok: #34d399;
  --warn: #fbbf24;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, sans-serif;
  background:
    radial-gradient(circle at 12% -10%, rgba(34, 211, 238, 0.16), transparent 42%),
    radial-gradient(circle at 90% 0%, rgba(56, 189, 248, 0.12), transparent 38%),
    var(--bg);
  color: var(--text);
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.wrap {
  width: min(1080px, calc(100% - 2rem));
  margin: 0 auto;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0 0.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  font-weight: 700;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
}

.nav-links {
  display: flex;
  gap: 1rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.hero {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2rem;
  align-items: center;
  padding: 1.5rem 0 1rem;
}

.logo-wrap {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid rgba(34, 211, 238, 0.35);
  box-shadow: 0 0 40px rgba(34, 211, 238, 0.18);
  background: #000;
}

.kicker {
  color: var(--cyan);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
}

h1 {
  margin: 0.35rem 0 0.6rem;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.05;
}

.sub {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.notice {
  margin: 1rem 0 0;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(251, 191, 36, 0.35);
  background: rgba(251, 191, 36, 0.08);
  border-radius: 14px;
  color: #fde68a;
  font-size: 0.95rem;
  line-height: 1.45;
}

.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  padding: 0.4rem 0 1.5rem;
}

.fact {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0.95rem 1rem;
}

.fact span {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.fact strong, .fact code {
  font-size: 1rem;
  word-break: break-all;
}

.copy-btn {
  margin-top: 0.55rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 650;
  cursor: pointer;
}

code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

.section {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.25rem 1.3rem;
  margin-bottom: 1rem;
}

.section h2 {
  margin: 0 0 0.7rem;
  font-size: 1.15rem;
}

.section p, .section li {
  color: #cbd5e1;
  line-height: 1.6;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  font-weight: 650;
  text-decoration: none;
}

.btn.primary {
  background: linear-gradient(90deg, #22d3ee, #38bdf8);
  color: #082f49;
}

.btn.ghost {
  border: 1px solid var(--line);
  color: var(--text);
  background: transparent;
}

.ok { color: var(--ok); }

.footer {
  padding: 1.5rem 0 2.2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 800px) {
  .hero, .facts { grid-template-columns: 1fr; }
  .logo-wrap { width: 168px; height: 168px; margin: 0 auto; }
  .hero { text-align: center; }
  .top { flex-wrap: wrap; }
  .nav-links { display: flex; flex-wrap: wrap; justify-content: center; }
}