:root {
  --bg: #0b0c10;
  --bg-card: #12141a;
  --text: #e6eaf2;
  --muted: #b7c0d1;
  --brand: #6ee7ff;
  --accent: #7c5cff;
  --border: #242733;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji';
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container { width: min(1100px, 92%); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: linear-gradient(180deg, rgba(11,12,16,.95), rgba(11,12,16,.8));
  backdrop-filter: saturate(180%) blur(6px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex; align-items: center; gap: 1rem; padding: .9rem 0;
}
.site-header h1 { font-size: 1.25rem; margin: 0; letter-spacing: .5px; }
.site-header nav { margin-left: auto; display: none; gap: 1rem; }
.site-header nav a {
  color: var(--muted); text-decoration: none; font-weight: 600; font-size: .95rem;
}
.site-header nav a:hover { color: var(--brand); }
#themeToggle {
  margin-left: .5rem;
  background: var(--bg-card); color: var(--muted);
  border: 1px solid var(--border); padding: .4rem .6rem;
  border-radius: .6rem; cursor: pointer;
}

@media (min-width: 720px) {
  .site-header nav { display: flex; }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.2rem 1.4rem;
  margin: 1rem 0;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 860px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}

.table-wrap { overflow-x: auto; }
table {
  width: 100%; border-collapse: collapse; font-size: .98rem;
  border: 1px solid var(--border);
}
thead th {
  text-align: left; background: #0f1117; color: var(--text);
  position: sticky; top: 0; z-index: 1;
}
th, td { padding: .8rem; border-bottom: 1px solid var(--border); vertical-align: top; }
tbody tr:nth-child(odd) { background: #0e1015; }
tbody tr:hover { background: #141823; }

.note { color: var(--muted); font-style: italic; }
.tiny { color: var(--muted); font-size: .85rem; }

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem; padding: 1.2rem 0; color: var(--muted);
  background: #0b0c10;
}

img { width: 100%; height: auto; border-radius: .8rem; border: 1px solid var(--border); }