:root { --bg: #f6f7f9; --fg: #1d2330; --card: #fff; --line: #dde1e8; --accent: #1f5fbf; --warn: #fff6d6; --err: #b3261e; }
@media (prefers-color-scheme: dark) { :root { --bg: #14171c; --fg: #e6e8ec; --card: #1e2229; --line: #333a45; --accent: #6ea0ff; --warn: #3a3218; --err: #ff8a80; } }
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, sans-serif; background: var(--bg); color: var(--fg); }
header { display: flex; justify-content: space-between; align-items: baseline; padding: 12px 16px; border-bottom: 1px solid var(--line); }
h1 { font-size: 18px; margin: 0; } h2 { font-size: 16px; margin: 0 0 12px; }
main { max-width: 960px; margin: 0 auto; padding: 16px; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 16px; margin-bottom: 16px; }
label { display: block; margin-bottom: 10px; }
input { width: 100%; padding: 6px 8px; border: 1px solid var(--line); border-radius: 4px; background: transparent; color: inherit; font: inherit; }
.inline { display: flex; gap: 4px; align-items: center; }
button { padding: 6px 12px; border: 0; border-radius: 4px; background: var(--accent); color: #fff; font: inherit; cursor: pointer; }
table { width: 100%; border-collapse: collapse; } th, td { text-align: left; padding: 6px 4px; border-bottom: 1px solid var(--line); }
.notice { background: var(--warn); } code { user-select: all; }
.error { color: var(--err); }
.hint { opacity: .75; font-size: 13px; margin-bottom: 0; }