:root {
  --bg: #f6f5f2; --fg: #1d1d1b; --muted: #6b6a66; --card: #fff; --line: #e2e0da;
  --accent: #1f4f46; --accent-fg: #fff; --error: #a3261b; --error-bg: #fbeae8;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #151514; --fg: #ecebe7; --muted: #9b9a95; --card: #1f1f1d; --line: #33322f;
          --accent: #5fb3a1; --accent-fg: #0d1a17; --error: #f08a7e; --error-bg: #3a1d1a; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--fg); }
main { max-width: 1200px; margin: 0 auto; padding: 24px 16px 64px; }
a { color: var(--accent); }
.topbar { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center;
          padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.topbar nav { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.brand { font-weight: 700; text-decoration: none; color: var(--fg); }
.who small, .muted { color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 24px; }
.narrow { max-width: 420px; margin: 40px auto; }
form label { display: block; margin: 0 0 14px; }
input, select { font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px;
                background: var(--bg); color: var(--fg); max-width: 100%; }
form label input { display: block; width: 100%; margin-top: 4px; }
button, .button { font: inherit; padding: 8px 14px; border-radius: 6px; border: 1px solid var(--accent);
                  background: var(--accent); color: var(--accent-fg); cursor: pointer; text-decoration: none; display: inline-block; }
button.secondary, .button.secondary { background: transparent; color: var(--accent); }
button.link { background: none; border: none; color: var(--accent); padding: 0; text-decoration: underline; }
button:disabled { opacity: .45; cursor: not-allowed; }
form.inline { display: inline; margin: 0; }
.error { color: var(--error); background: var(--error-bg); padding: 8px 12px; border-radius: 6px; }
.flash { position: sticky; top: 8px; padding: 8px 12px; border-radius: 6px; background: var(--card); border: 1px solid var(--line); }
.flash.error { border-color: var(--error); }
.tiles { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.tiles li { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 12px; }
.tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.tabs button { background: transparent; color: var(--accent); }
.tabs button.active { background: var(--accent); color: var(--accent-fg); }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 16px; }
.row label { margin: 0; }
.row label input { display: inline-block; width: auto; margin: 0 0 0 4px; }
table { width: 100%; border-collapse: collapse; background: var(--card); }
.scroll { overflow-x: auto; margin-bottom: 12px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
td.actions { white-space: nowrap; }
td.actions button { margin-right: 6px; }
td.details { font-family: ui-monospace, monospace; font-size: 12px; max-width: 360px; word-break: break-word; }
tr.muted td { color: var(--muted); }
.secret { background: var(--card); border: 2px solid var(--accent); border-radius: 8px; padding: 12px 16px; margin-bottom: 16px; }
.secret code { font-size: 18px; user-select: all; }
label.button input[type=file] { display: none; }