:root {
  --bg: #f6f4ef;
  --surface: #ffffff;
  --fg: #1d2127;
  --muted: #5d6572;
  --line: #e2ddd3;
  --accent: #2f6f5e;
  --accent-fg: #ffffff;
  --danger: #b3261e;
  --warn-bg: #fff4d6;
  --warn-fg: #6b4e00;
  --code-bg: #efece5;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15171a;
    --surface: #1e2125;
    --fg: #e9e6df;
    --muted: #a2a9b3;
    --line: #33373d;
    --accent: #6cc3a8;
    --accent-fg: #0f1a16;
    --danger: #f2948c;
    --warn-bg: #3a3118;
    --warn-fg: #f3d98a;
    --code-bg: #26292e;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #15171a;
  --surface: #1e2125;
  --fg: #e9e6df;
  --muted: #a2a9b3;
  --line: #33373d;
  --accent: #6cc3a8;
  --accent-fg: #0f1a16;
  --danger: #f2948c;
  --warn-bg: #3a3118;
  --warn-fg: #f3d98a;
  --code-bg: #26292e;
  color-scheme: dark;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 52rem; margin: 0 auto; padding: 32px 16px 64px; }
header.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.brand { font-weight: 700; font-size: 1.25rem; letter-spacing: .01em; color: var(--fg); text-decoration: none; }
.brand span { color: var(--accent); }
h1 { font-size: 1.8rem; line-height: 1.2; margin: 0 0 .5rem; }
h2 { font-size: 1.2rem; margin: 2rem 0 .5rem; }
h3 { font-size: 1.05rem; margin: 0 0 .25rem; }
p { margin: 0 0 1rem; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
code, pre { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: .875em; }
code { background: var(--code-bg); padding: .1em .35em; border-radius: 4px; }
pre { background: var(--code-bg); padding: 12px 14px; border-radius: var(--radius); overflow-x: auto; }
pre code { background: none; padding: 0; }

button, .button {
  font: inherit; font-size: .95rem; cursor: pointer; border-radius: 8px; padding: .5em 1em;
  border: 1px solid var(--line); background: var(--surface); color: var(--fg); text-decoration: none; display: inline-block;
}
button:hover, .button:hover { border-color: var(--muted); }
button.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
button.danger { color: var(--danger); }
button.link { border: none; background: none; padding: 0; color: var(--accent); text-decoration: underline; }
button:disabled { opacity: .55; cursor: default; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin: 12px 0; }
.warn { background: var(--warn-bg); color: var(--warn-fg); border-radius: 8px; padding: 8px 12px; margin: 8px 0; font-size: .9rem; }

table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
td.actions { white-space: nowrap; text-align: right; }
.table-wrap { overflow-x: auto; }
.preview { color: var(--muted); font-family: ui-monospace, Consolas, monospace; font-size: .8rem; word-break: break-all; }

textarea, input[type="text"] {
  width: 100%; font: inherit; font-family: ui-monospace, Consolas, monospace; font-size: .85rem;
  background: var(--bg); color: var(--fg); border: 1px solid var(--line); border-radius: 8px; padding: 8px;
}
textarea { min-height: 14rem; }
dialog { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--fg); width: min(40rem, calc(100vw - 32px)); padding: 16px; }
dialog::backdrop { background: rgb(0 0 0 / .4); }
.hidden { display: none !important; }
.avatar { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; background: var(--line); flex: none; }
footer { margin-top: 48px; font-size: .875rem; color: var(--muted); }