:root {
  --bg: #0b1220;
  --panel: #121a2b;
  --line: #243049;
  --text: #e8eefc;
  --muted: #93a0bd;
  --accent: #5b8cff;
  --accent2: #3dd6c6;
  --danger: #ff6b7a;
  --ok: #3dd68c;
  --font: "Segoe UI", "IBM Plex Sans", system-ui, sans-serif;
  --display: "Georgia", "Iowan Old Style", serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: var(--font); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; letter-spacing: 0.02em; font-size: 18px; color: var(--text); }
.brand span { color: var(--accent2); }
.navlinks { display: flex; gap: 18px; align-items: center; color: var(--muted); font-size: 14px; }
.btn { display: inline-flex; align-items: center; justify-content: center; border-radius: 8px; padding: 10px 16px; border: 1px solid var(--line); background: var(--panel); color: var(--text); font-weight: 600; cursor: pointer; }
.btn-primary { background: linear-gradient(135deg, var(--accent), #7a6cff); border: none; }
.btn-primary:hover { filter: brightness(1.08); text-decoration: none; }
.hero { padding: 72px 0 48px; background:
  radial-gradient(900px 400px at 10% -10%, rgba(91,140,255,0.25), transparent),
  radial-gradient(700px 300px at 90% 0%, rgba(61,214,198,0.18), transparent); }
.hero h1 { font-family: var(--display); font-size: 52px; line-height: 1.05; margin: 0 0 16px; max-width: 720px; }
.hero p { color: var(--muted); font-size: 18px; max-width: 560px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 24px 0 64px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.card h3 { margin: 0 0 8px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.footer { border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); font-size: 13px; }
.auth { max-width: 420px; margin: 48px auto; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 28px; }
.auth h1 { margin: 0 0 8px; font-size: 24px; }
.auth p { color: var(--muted); margin: 0 0 20px; }
label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 6px; }
input, textarea, select { width: 100%; background: #0d1526; border: 1px solid var(--line); border-radius: 8px; color: var(--text); padding: 10px 12px; }
.err { color: var(--danger); font-size: 13px; margin-top: 10px; }
.ok { color: var(--ok); font-size: 13px; margin-top: 10px; }
.app-shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side { border-right: 1px solid var(--line); padding: 20px; background: #0d1524; }
.side a { display: block; color: var(--muted); padding: 8px 0; }
.main { padding: 24px; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { border-bottom: 1px solid var(--line); text-align: left; padding: 10px 8px; font-size: 14px; }
@media (max-width: 800px) {
  .grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 36px; }
  .app-shell { grid-template-columns: 1fr; }
}