:root {
  --bg: #f4f4f5; --card: #fff; --head: #fafafa; --ink: #141416; --muted: #6b6b74; --line: #dcdce1;
  --red: #e10600;
  --del-bg: #fdeceb; --del-ink: #b4231b; --del-line: #f3c4c0; --del-strong: #c42b23;
  --ok-bg: #e6f4ea; --ok-ink: #1e7a3c; --ok-line: #b7dfc3;
  --honey-bg: #fde3a7; --honey-ink: #7a5200; --honey-line: #f1c76b;
  --primary: #141416; --primary-ink: #fff;
  --shadow: 0 1px 2px rgb(0 0 0 / .05);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e0e10; --card: #18181b; --head: #1d1d21; --ink: #f2f2f3; --muted: #a1a1aa; --line: #303036;
    --red: #ff1a12;
    --del-bg: #2e1513; --del-ink: #f08b84; --del-line: #5a2622; --del-strong: #c8423b;
    --ok-bg: #12301d; --ok-ink: #6fd394; --ok-line: #1f5132;
    --honey-bg: #3a2c0c; --honey-ink: #f5c86a; --honey-line: #6b5216;
    --primary: #f2f2f3; --primary-ink: #141416;
    --shadow: none; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e0e10; --card: #18181b; --head: #1d1d21; --ink: #f2f2f3; --muted: #a1a1aa; --line: #303036;
  --red: #ff1a12;
  --del-bg: #2e1513; --del-ink: #f08b84; --del-line: #5a2622; --del-strong: #c8423b;
  --ok-bg: #12301d; --ok-ink: #6fd394; --ok-line: #1f5132;
  --honey-bg: #3a2c0c; --honey-ink: #f5c86a; --honey-line: #6b5216;
  --primary: #f2f2f3; --primary-ink: #141416;
  --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.45 "Segoe UI", system-ui, sans-serif; }
h1, h2 { margin: 0; font-weight: 600; }
h1 { font-size: 22px; }
h2 { font-size: 17px; }
.muted { color: var(--muted); }

/* Top bar */
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 12px 24px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; }
.mark { width: 14px; height: 22px; background: var(--red); clip-path: polygon(40% 0, 100% 0, 60% 100%, 0 100%); }
.top-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.backup { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 13px; margin-right: 4px; }
.backup::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ok-ink); }
.backup.old { color: var(--honey-ink); }
.backup.old::before { background: var(--honey-ink); }

main { max-width: 980px; margin: 0 auto; padding: 24px; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding-bottom: 14px; margin-bottom: 18px; border-bottom: 1px solid var(--line); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 12px;
  border: 1px solid var(--line); border-radius: 7px; background: transparent; color: var(--ink);
  font: inherit; font-size: 14px; cursor: pointer; white-space: nowrap; }
.btn:hover { background: var(--head); }
.btn svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round; }
.btn.primary { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); }
.btn.primary:hover { opacity: .88; }
.btn.danger { background: var(--del-bg); color: var(--del-ink); border-color: var(--del-line); }
.btn.danger:hover { border-color: var(--del-ink); }
.btn.danger.strong { background: var(--del-strong); color: #fff; border-color: var(--del-strong); }
.btn.danger.strong:hover { opacity: .9; }
.btn.small { height: 28px; padding: 0 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: default; }
.btn:focus-visible, input:focus-visible { outline: 2px solid var(--red); outline-offset: 1px; }

/* Connector cards */
.card { background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--red);
  border-radius: 10px; margin-bottom: 16px; box-shadow: var(--shadow); overflow: hidden; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 18px; border-bottom: 1px solid var(--line); }
.card-head .count { color: var(--muted); font-size: 13px; }
.row { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 16px;
  padding: 12px 18px; border-bottom: 1px solid var(--line); }
.row .name { font-weight: 600; overflow-wrap: anywhere; }
.row .id, .log-row .id, .id-hint { color: var(--muted); font: 12px/1.4 Consolas, "Cascadia Mono", monospace; overflow-wrap: anywhere; }
.id-hint { font-weight: 400; }
.id-hint:empty { display: none; }
.row .actions { display: flex; gap: 8px; justify-content: flex-end; }
.row .hint { color: var(--muted); font-size: 13px; }
.card-foot { padding: 10px 18px; }
.pill { display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: 6px;
  font-size: 13px; font-weight: 600; border: 1px solid var(--ok-line); background: var(--ok-bg); color: var(--ok-ink); }
.pill.locked { border-color: var(--line); background: var(--head); color: var(--muted); }

.notice { padding: 12px 16px; margin-bottom: 16px; border-radius: 8px;
  border: 1px solid var(--honey-line); background: var(--honey-bg); color: var(--honey-ink); }
.empty { padding: 28px; text-align: center; color: var(--muted); background: var(--card);
  border: 1px dashed var(--line); border-radius: 10px; }

/* Dialogs */
dialog { width: min(440px, calc(100vw - 32px)); padding: 0; border: 1px solid var(--line);
  border-radius: 12px; background: var(--card); color: var(--ink); }
dialog::backdrop { background: rgb(0 0 0 / .45); }
dialog form { display: flex; flex-direction: column; gap: 14px; padding: 20px; }
dialog label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; font-weight: 600; }
dialog input { height: 36px; padding: 0 10px; border: 1px solid var(--line); border-radius: 7px;
  background: var(--bg); color: var(--ink); font: inherit; font-weight: 400; }
dialog input:disabled { color: var(--muted); }
dialog p { margin: 0; }
.pw { display: flex; gap: 8px; align-items: center; }
.pw input { flex: 1; min-width: 0; }
.err { color: var(--red); font-size: 13px; }
.dlg-actions { display: flex; justify-content: flex-end; gap: 8px; }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); max-width: calc(100vw - 32px);
  padding: 10px 16px; border-radius: 8px; background: var(--primary); color: var(--primary-ink);
  font-size: 14px; box-shadow: 0 4px 16px rgb(0 0 0 / .2); }

@media (max-width: 640px) {
  .top { padding: 12px 16px; }
  main { padding: 16px; }
  .row { grid-template-columns: 1fr auto; row-gap: 10px; padding: 12px 16px; }
  .row .actions { grid-column: 1 / -1; justify-content: flex-start; }
  .card-head, .card-foot { padding-left: 16px; padding-right: 16px; }
}

[hidden] { display: none !important; }

/* Sign-in screens */
.auth { display: flex; justify-content: center; padding-top: 6vh; }
.auth-card { width: min(400px, 100%); display: flex; flex-direction: column; gap: 14px; padding: 22px;
  background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--red);
  border-radius: 10px; box-shadow: var(--shadow); }
.auth-card p { margin: 0; }
.auth-card label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; font-weight: 600; }
.auth-card input { height: 38px; padding: 0 10px; border: 1px solid var(--line); border-radius: 7px;
  background: var(--bg); color: var(--ink); font: inherit; font-weight: 400; }
.auth-card > .btn.primary { justify-content: center; }
.auth-actions { display: flex; justify-content: flex-end; gap: 8px; }

/* Recent changes */
.log-card { border-left-color: var(--line); }
.log-row { display: grid; grid-template-columns: 130px 1fr auto; gap: 12px; align-items: baseline;
  padding: 10px 18px; border-bottom: 1px solid var(--line); font-size: 14px; }
.log-row:last-child { border-bottom: 0; }
.log-row .when, .log-row .src { color: var(--muted); font-size: 13px; }
.log-row .id { margin-left: 4px; }
@media (max-width: 640px) {
  .log-row { grid-template-columns: 1fr auto; padding: 10px 16px; }
  .log-row .when { grid-column: 1 / -1; }
}