:root {
  --bg: #f4f9fe;
  --card: #ffffff;
  --sky: #3aa6f2;
  --sky-strong: #1c86d6;
  --sky-soft: #e3f2fd;
  --text: #1e2a38;
  --text-2: #6a7b8f;
  --line: #dceaf6;
  --warn: #f5a524;
  --warn-soft: #fff4e0;
  --danger: #ef6b6b;
  --danger-soft: #fdecec;
  --ok: #2fb67c;
  --radius: 12px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1a26; --card: #16263a; --sky: #5bb8fa; --sky-strong: #3aa6f2; --sky-soft: #1b3550;
    --text: #e6eef7; --text-2: #93a6bb; --line: #24384f; --warn-soft: #3a2e17; --danger-soft: #3b2226;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei UI", "Segoe UI", sans-serif; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--sky); outline-offset: 2px; }
h2 { font-size: 15px; font-weight: 600; margin: 0; }
h3 { font-size: 16px; font-weight: 600; margin: 0 0 6px; }
.muted { color: var(--text-2); }
.center { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.login-card { width: 340px; display: flex; flex-direction: column; gap: 14px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 16px; }
.dot { width: 12px; height: 12px; border-radius: 50%; background: var(--sky); box-shadow: 0 0 0 5px var(--sky-soft); }
label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-2); }
label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); padding-bottom: 8px; }
input { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  height: 36px; padding: 0 10px; outline: none; min-width: 0; }
input:focus { border-color: var(--sky); box-shadow: 0 0 0 3px var(--sky-soft); }
input[type=checkbox] { height: auto; accent-color: var(--sky-strong); }
button { font: inherit; border-radius: 8px; height: 34px; padding: 0 14px; cursor: pointer; border: 1px solid var(--line);
  background: transparent; color: var(--text); white-space: nowrap; }
button:hover { background: var(--sky-soft); }
button.primary { background: var(--sky-strong); color: #fff; border-color: var(--sky-strong); }
button.primary:hover { background: var(--sky); }
button.ghost { border-color: transparent; color: var(--text-2); }
button.small { height: 28px; padding: 0 10px; font-size: 12px; }
button.primary.danger-fill { background: var(--danger); border-color: var(--danger); }
button.danger { color: var(--danger); }
button.danger:hover { background: var(--danger-soft); }
.error { color: var(--danger); margin: 0; font-size: 13px; }
.topbar { display: flex; align-items: center; gap: 24px; padding: 12px 24px; background: var(--card); border-bottom: 1px solid var(--line); }
.tabs { display: flex; gap: 4px; flex: 1; }
.tab { border: none; color: var(--text-2); }
.tab.active { background: var(--sky-soft); color: var(--sky-strong); }
.me { display: flex; align-items: center; gap: 8px; color: var(--text-2); }
.panel { max-width: 1080px; margin: 24px auto; padding: 0 16px; display: flex; flex-direction: column; gap: 16px; }
.create-card .row { display: grid; grid-template-columns: 1fr 1fr 1.3fr auto auto; gap: 12px; align-items: end; margin-top: 12px; }
.with-btn { display: flex; gap: 6px; }
.with-btn input { flex: 1; }
.table-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-size: 12px; font-weight: 500; color: var(--text-2); }
tr:last-child td { border-bottom: none; }
.right { text-align: right; }
td.actions { text-align: right; }
td.actions button { margin-left: 4px; }
.pill { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 6px; }
.pill.admin { background: var(--sky-soft); color: var(--sky-strong); }
.pill.off { background: var(--danger-soft); color: var(--danger); }
.pill.on { color: var(--ok); }
dialog { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; width: 380px; background: var(--card); color: var(--text); }
dialog::backdrop { background: rgba(15, 26, 38, .35); }
dialog input { width: 100%; margin: 6px 0 4px; }
.dlg-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg);
  padding: 8px 16px; border-radius: 8px; font-size: 13px; }
@media (max-width: 760px) {
  .create-card .row { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; gap: 12px; padding: 12px 16px; }
}