:root {
  --bg: #0b0c0e;
  --fg: #e9eef3;
  --muted: #9aa4ad;
  --card: #14171a;
  --line: #23282d;
  --accent: #cfd8e3;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font: 15px/1.5 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji"; }

.container { max-width: 1000px; margin: 0 auto; padding: 16px; }
header h1 { margin: 0 0 4px 0; font-size: 24px; }
.sub { color: var(--muted); margin: 0; }

.grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 960px) { .grid { grid-template-columns: 1fr 1fr; } .grid .card:last-of-type { grid-column: 1 / -1; } }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.card h2 { margin: 0 0 10px; font-size: 16px; letter-spacing: .2px; }

label { display: block; font-size: 12px; color: var(--muted); margin: 10px 0 6px; }
input[type="url"], input[type="text"], input[type="number"] {
  width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: #0f1215; color: var(--fg);
}
.row { display: flex; align-items: center; gap: 8px; margin-top: 12px; }
button {
  padding: 9px 12px; border-radius: 10px; border: 1px solid var(--line);
  background: #1c2126; color: var(--fg); cursor: pointer;
}
button:hover { background: #23292e; }

.hint { margin-top: 10px; color: var(--muted); }
.hint summary { cursor: pointer; }

.list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.list li { padding: 10px 6px; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.list li:hover { background: #171b1f; }
.item-title { margin: 0; font-weight: 600; }
.item-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.badge { font-size: 11px; color: var(--accent); border: 1px solid var(--line); border-radius: 999px; padding: 2px 8px; align-self: center; }

.viewer { min-height: 220px; white-space: normal; }
.viewer p { margin: 10px 0; }
.viewer pre { background: #0f1215; padding: 10px; border-radius: 8px; overflow: auto; }
.viewer a { color: var(--accent); text-decoration: none; border-bottom: 1px dotted var(--accent); }
.viewer a:hover { border-bottom-style: solid; }
.muted { color: var(--muted); }

.foot { color: var(--muted); text-align: center; }