:root {
  --bg: #0b0f17;
  --panel: #121621;
  --ink: #e9eef5;
  --muted: #9aa3ad;
  --line: #1f2937;
  --brand: #00e0ff;
  --accent: #8ab6ff;
  --ok: #35e1a1;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}

[data-theme="light"] {
  --bg: #f7fafc;
  --panel: #ffffff;
  --ink: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --brand: #0ea5e9;
  --accent: #3b82f6;
  --shadow: 0 8px 24px rgba(2, 6, 23, .08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

header {
  background: linear-gradient(180deg, rgba(11,15,23,.9), rgba(11,15,23,.65));
  border-bottom: 1px solid var(--line);
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

.mast { display:flex; align-items:center; justify-content:space-between; padding: 14px 0; }
.brand { display:flex; align-items:center; gap:12px; }
.logo {
  width: 36px; height: 36px; border-radius: 8px;
  background: radial-gradient(120% 120% at 20% 30%, var(--brand), transparent 50%), #0b1220;
}
h1 { margin: 0; font-size: 1.8rem; }
.tagline { color: var(--muted); font-size: 14px; margin-top: 2px; }

.actions { display:flex; gap:8px; }
button, .btn {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
}
.btn-primary { background: var(--brand); color:#03121a; }

main { padding: 24px 0 64px; }
section { margin-bottom: 28px; }
h3 { color: var(--accent); margin-top: 0; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--shadow);
}

footer { border-top: 1px solid var(--line); color: var(--muted); padding: 18px 0 48px; margin-top: 24px; }

@media (max-width: 768px) {
  .mast { flex-direction: column; align-items: flex-start; gap: 10px; }
}