:root {
  --bg-primary: #090d16;
  --bg-surface: #111827;
  --bg-card: #1f2937;
  --accent-indigo: #6366f1;
  --accent-amber: #f59e0b;
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --border-color: #374151;
  --radius-md: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: Inter, system-ui, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
}

a { color: #a5b4fc; text-decoration: none; }
a:hover { text-decoration: underline; }

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px 24px;
  max-width: 920px;
  margin: 0 auto;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.logo {
  font-weight: 800;
  color: var(--text-primary);
  font-size: 1.25rem;
}

.nav-links { display: flex; gap: 14px; flex-wrap: wrap; font-size: .9rem; }

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px 24px;
}

h1 {
  font-size: 1.85rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.meta {
  color: var(--text-muted);
  font-size: .88rem;
  margin-bottom: 28px;
}

h2 {
  font-size: 1.15rem;
  margin: 28px 0 10px;
  color: #c7d2fe;
}

h3 {
  font-size: 1rem;
  margin: 18px 0 8px;
  color: var(--text-primary);
}

p, li { color: var(--text-secondary); font-size: .95rem; }
ul, ol { padding-left: 22px; margin: 8px 0 12px; }
li { margin-bottom: 6px; }
strong { color: var(--text-primary); }

.notice {
  background: rgba(245, 158, 11, .12);
  border: 1px solid rgba(245, 158, 11, .35);
  color: #fbbf24;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: .88rem;
  margin: 16px 0 24px;
}

.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: .85rem; margin-bottom: 6px; color: var(--text-secondary); }
.form-input, .form-textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 10px;
  padding: 12px 14px;
  font: inherit;
}
.form-textarea { min-height: 100px; resize: vertical; }
.form-btn {
  background: var(--accent-indigo);
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 12px 18px;
  font-weight: 700;
  cursor: pointer;
}
.form-btn:hover { filter: brightness(1.08); }

.alert-success {
  display: none;
  margin-top: 16px;
  background: rgba(16,185,129,.12);
  border: 1px solid rgba(16,185,129,.35);
  color: #34d399;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: .9rem;
}

footer {
  max-width: 920px;
  margin: 0 auto;
  padding: 24px;
  border-top: 1px solid rgba(255,255,255,.06);
  color: var(--text-muted);
  font-size: .82rem;
  text-align: center;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 18px;
  font-size: .88rem;
}
th, td {
  border: 1px solid var(--border-color);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
th { background: var(--bg-card); color: var(--text-primary); }
td { color: var(--text-secondary); }