:root {
  --bg: #f8fafc; --card: #ffffff; --text: #0f172a; --muted: #64748b; --line: #e2e8f0;
  --accent: #16a34a; --accent-text: #ffffff; --danger: #dc2626; --warn: #b45309; --info: #2563eb;
  --top: #0f172a; --top-text: #f8fafc; --radius: 12px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b1220; --card: #111a2e; --text: #e2e8f0; --muted: #94a3b8; --line: #1e293b;
          --accent: #22c55e; --accent-text: #052e16; --danger: #f87171; --warn: #fbbf24; --info: #60a5fa; }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--info); }
.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 12px; padding: 10px 16px;
  padding-top: max(10px, env(safe-area-inset-top)); background: var(--top); color: var(--top-text); flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 8px; color: inherit; text-decoration: none; font-weight: 700; }
.top nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.top nav a { color: var(--top-text); text-decoration: none; padding: 6px 10px; border-radius: 8px; opacity: .8; }
.top nav a.on { background: rgba(255,255,255,.12); opacity: 1; }
.top select { width: auto; margin-left: auto; background: transparent; color: var(--top-text); border: 1px solid rgba(255,255,255,.3);
  border-radius: 8px; padding: 4px 6px; }
.top select option { color: #0f172a; }
main { max-width: 860px; margin: 0 auto; padding: 16px; outline: none; }
h1 { font-size: 1.4rem; margin: 8px 0 16px; }
h2 { font-size: 1.1rem; margin: 20px 0 8px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.between { justify-content: space-between; }
.muted { color: var(--muted); font-size: .92rem; }
.small { font-size: .85rem; }
label { display: block; margin: 10px 0 4px; font-weight: 600; font-size: .92rem; }
input, select, textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg); color: var(--text); font: inherit; }
input:focus, select:focus, button:focus-visible, a:focus-visible { outline: 3px solid var(--info); outline-offset: 1px; }
button { font: inherit; border: 0; border-radius: 10px; padding: 10px 16px; cursor: pointer; background: var(--line);
  color: var(--text); font-weight: 600; min-height: 44px; }
button.primary { background: var(--accent); color: var(--accent-text); }
button.danger { background: var(--danger); color: #fff; }
button.link { background: none; color: var(--info); padding: 4px; min-height: auto; font-weight: 500; }
button:disabled { opacity: .5; cursor: default; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .8rem; font-weight: 700;
  background: var(--line); }
.badge.ok { background: color-mix(in srgb, var(--accent) 20%, transparent); color: var(--accent); }
.badge.warn { background: color-mix(in srgb, var(--warn) 20%, transparent); color: var(--warn); }
.badge.bad { background: color-mix(in srgb, var(--danger) 20%, transparent); color: var(--danger); }
.err { color: var(--danger); margin-top: 8px; min-height: 1.2em; }
.note { border-left: 4px solid var(--warn); padding: 8px 12px; background: color-mix(in srgb, var(--warn) 10%, transparent);
  border-radius: 8px; margin: 8px 0; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
.nowrap { white-space: nowrap; }
.scroll { overflow-x: auto; }
.auth { max-width: 420px; margin: 40px auto; }
code.secret { display: block; word-break: break-all; padding: 10px; background: var(--bg); border-radius: 8px;
  border: 1px dashed var(--line); font-size: 1rem; letter-spacing: .05em; }
#toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); background: var(--top); color: var(--top-text);
  padding: 10px 16px; border-radius: 10px; max-width: 90vw; z-index: 10; }
dialog { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); color: var(--text);
  max-width: 420px; width: calc(100% - 32px); padding: 20px; }
dialog::backdrop { background: rgba(0,0,0,.45); }
.check { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.check input { width: auto; }
@media (max-width: 560px) { .top nav { order: 3; flex: 1 1 100%; } main { padding: 12px; } }