:root {
  --bg: #f7f7f8;
  --surface: #ffffff;
  --surface-2: #f1f2f4;
  --border: #e2e4e8;
  --text: #16181d;
  --muted: #646b78;
  --accent: #24b47e;
  --accent-strong: #1a9467;
  --accent-soft: #e3f7ee;
  --danger: #d4402f;
  --danger-soft: #fdecea;
  --warn: #b7791f;
  --warn-soft: #fdf4e3;
  --info-soft: #e8f0fe;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 8px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121316;
    --surface: #1b1d21;
    --surface-2: #23262b;
    --border: #2f333a;
    --text: #ecedef;
    --muted: #9aa1ad;
    --accent: #3ecf8e;
    --accent-strong: #5ee0a5;
    --accent-soft: #173327;
    --danger: #f06b5b;
    --danger-soft: #3a1f1c;
    --warn: #e2b153;
    --warn-soft: #3a2f1a;
    --info-soft: #1d2a40;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent-strong); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, .mono { font-family: var(--mono); font-size: 12.5px; }
h1 { font-size: 22px; margin: 0; }
h2 { font-size: 16px; margin: 0 0 12px; }
h3 { font-size: 14px; margin: 0 0 8px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 24px; background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--text); }
.brand:hover { text-decoration: none; }
.nav { display: flex; align-items: center; gap: 18px; }
.nav a { color: var(--muted); }
.nav a.active { color: var(--text); font-weight: 600; }

.container { max-width: 1120px; margin: 0 auto; padding: 24px; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.page-head .title { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grow { flex: 1; }
.stack > * + * { margin-top: 16px; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-cards { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px;
}
.card.link { display: block; color: inherit; transition: border-color .15s; }
.card.link:hover { border-color: var(--accent); text-decoration: none; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 6px; }

.btn {
  display: inline-flex; align-items: center; gap: 6px; justify-content: center;
  padding: 7px 14px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font: inherit; cursor: pointer; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger-soft); }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-sm { padding: 3px 9px; font-size: 12.5px; }

.badge {
  display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 500;
  background: var(--surface-2); color: var(--muted); border: 1px solid var(--border);
}
.badge.ok { background: var(--accent-soft); color: var(--accent-strong); border-color: transparent; }
.badge.warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.badge.err { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.badge.info { background: var(--info-soft); color: var(--text); border-color: transparent; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 20px; overflow-x: auto; }
.tabs a { padding: 8px 14px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs a.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }
.tabs a:hover { text-decoration: none; color: var(--text); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-weight: 500; color: var(--muted); font-size: 12.5px; }
tr:last-child td { border-bottom: 0; }

label.field { display: block; }
label.field > span { display: block; font-weight: 500; margin-bottom: 4px; }
label.field > small { display: block; color: var(--muted); margin-top: 3px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=url], select, textarea {
  width: 100%; padding: 7px 10px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font: inherit;
}
textarea { font-family: var(--mono); font-size: 12.5px; min-height: 120px; resize: vertical; }
textarea.code { min-height: 340px; tab-size: 2; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
.check { display: flex; gap: 10px; align-items: flex-start; padding: 6px 0; }
.check input { margin-top: 3px; }
.check small { display: block; color: var(--muted); }
fieldset { border: 0; padding: 0; margin: 0; }
.form-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.secret { display: flex; gap: 6px; align-items: center; }
.secret code {
  flex: 1; min-width: 0; padding: 6px 9px; border-radius: 6px; background: var(--surface-2);
  border: 1px solid var(--border); overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.kv { display: grid; grid-template-columns: 170px 1fr; gap: 10px 14px; align-items: center; }
.kv > dt { color: var(--muted); }
.kv > dd { margin: 0; min-width: 0; }
@media (max-width: 640px) { .kv { grid-template-columns: 1fr; } .kv > dt { margin-top: 6px; } }

pre.block {
  margin: 0; padding: 12px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px;
  overflow: auto; max-height: 560px; white-space: pre-wrap; word-break: break-all;
}
.notice { padding: 10px 14px; border-radius: 6px; background: var(--info-soft); }
.notice.err { background: var(--danger-soft); color: var(--danger); }
.notice.warn { background: var(--warn-soft); }
.danger-zone { border-color: var(--danger); }

.login { max-width: 380px; margin: 80px auto; }
.empty { text-align: center; padding: 48px 24px; }

.toast {
  position: fixed; bottom: 20px; right: 20px; max-width: 420px; padding: 10px 16px; border-radius: 6px;
  background: var(--text); color: var(--bg); box-shadow: 0 6px 20px rgba(0,0,0,.2); z-index: 10;
}
.toast.err { background: var(--danger); color: #fff; }
.spinner {
  width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--border); border-top-color: var(--accent);
  animation: spin .8s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* spacing helpers (inline styles are blocked by the CSP) */
.mt { margin-top: 10px; }
.mr { margin-right: 8px; }
.break { word-break: break-all; }
.err-text { color: var(--danger); }
details > summary { cursor: pointer; margin: 4px 0; }