/* public/style.css */
:root {
  --bg: #0b1220;
  --card: #111a2e;
  --text: #e6eefc;
  --muted: #a9b7d0;
  --border: rgba(255,255,255,0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1000px 500px at 20% 10%, #1b2a52 0%, var(--bg) 60%);
  color: var(--text);
}

.container {
  width: min(1000px, calc(100% - 32px));
  margin: 0 auto;
}

.header {
  padding: 48px 0 28px;
  border-bottom: 1px solid var(--border);
}

.subtitle { color: var(--muted); margin-top: 8px; }

.nav { margin-top: 16px; display: flex; gap: 14px; flex-wrap: wrap; }
.nav a, .back {
  color: var(--text);
  text-decoration: none;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
}
.nav a:hover, .back:hover { background: rgba(255,255,255,0.06); }

main { padding: 28px 0 56px; }

.card {
  background: rgba(17, 26, 46, 0.85);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 18px 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

ul { margin: 12px 0 16px; color: var(--muted); }

.btn {
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px;
  cursor: pointer;
}
.btn:hover { background: rgba(255,255,255,0.12); }

.msg { margin-top: 12px; color: var(--text); min-height: 1.2em; }

.grid {
  margin-top: 18px;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.tile {
  background: rgba(17, 26, 46, 0.55);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  color: var(--muted);
}
.tile h3 { color: var(--text); margin: 0 0 6px; }

.footer {
  border-top: 1px solid var(--border);
  padding: 18px 0;
  color: var(--muted);
}

@media (max-width: 800px) {
  .grid { grid-template-columns: 1fr; }
}