/* Author display rules (.overlay{display:flex}) override the UA [hidden] rule;
   keep every hidden element truly hidden or the confirm dialog blocks the app. */
[hidden] { display: none !important; }

:root {
  --bg: #f2f5fb;
  --bg-soft: #e9eef9;
  --panel: #ffffff;
  --panel-2: #f8faff;
  --text: #172033;
  --muted: #667085;
  --line: #dbe2ef;
  --accent: #4f6ef7;
  --accent-hover: #3d5ce6;
  --accent-soft: #e8edff;
  --good: #14845c;
  --good-soft: #e2f6ee;
  --warn: #a56200;
  --warn-soft: #fff3dd;
  --bad: #b53232;
  --bad-soft: #ffe9e9;
  --peak: #d99a1b;
  --mixed: #7c5cff;
  --shadow: 0 10px 30px rgba(23, 32, 51, 0.08);
  --radius: 14px;
  --mono: "Cascadia Mono", "Consolas", "SFMono-Regular", monospace;
}

html[data-theme="dark"] {
  --bg: #0e1420;
  --bg-soft: #131c2b;
  --panel: #182233;
  --panel-2: #141c2a;
  --text: #e8eef9;
  --muted: #9aa8bf;
  --line: #2a3850;
  --accent: #7f97ff;
  --accent-hover: #9baeff;
  --accent-soft: #202c48;
  --good: #63d4a4;
  --good-soft: #123328;
  --warn: #f0b45a;
  --warn-soft: #3a2b12;
  --bad: #ff8d8d;
  --bad-soft: #3a1b1b;
  --peak: #f5c35a;
  --mixed: #b09aff;
  --shadow: 0 12px 34px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 "Segoe UI", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

h1, h2, h3, p { margin: 0 0 0.55rem; }
h1 { font-size: 1.55rem; letter-spacing: 0.01em; }
h2 { font-size: 1.02rem; }
a { color: var(--accent); }
code, kbd { font-family: var(--mono); font-size: 0.86em; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: fixed; left: 8px; top: -60px; z-index: 60;
  background: var(--accent); color: #fff; padding: 8px 14px; border-radius: 8px;
  text-decoration: none; transition: top 0.15s ease;
}
.skip-link:focus { top: 8px; }

/* ── shell ─────────────────────────────────────────────────────────────── */

.shell { display: grid; grid-template-columns: 238px minmax(0, 1fr); min-height: 100vh; }

.sidebar {
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border-right: 1px solid var(--line);
  padding: 20px 14px 28px;
  position: sticky; top: 0; align-self: start; height: 100vh; overflow-y: auto;
}

.brand { padding: 4px 10px 18px; display: flex; flex-direction: column; }
.brand strong { font-size: 1.05rem; letter-spacing: 0.02em; }
.brand small { color: var(--muted); margin-top: 2px; }

#nav { display: flex; flex-direction: column; gap: 3px; }
.nav-group {
  margin: 16px 10px 4px; font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted);
}
#nav button {
  text-align: left; background: transparent; border: 0; color: var(--text);
  padding: 9px 12px; border-radius: 10px; cursor: pointer; font: inherit;
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
}
#nav button:hover { background: var(--bg-soft); }
#nav button.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.badge-count {
  background: var(--bad); color: #fff; border-radius: 99px; font-size: 0.7rem;
  min-width: 18px; text-align: center; padding: 1px 6px;
}

.content { min-width: 0; display: flex; flex-direction: column; }

.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 12px;
  padding: 12px 22px; background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--line); backdrop-filter: blur(10px);
}
.crumbs { flex: 1; color: var(--muted); font-size: 0.88rem; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.conn-badge {
  font-size: 0.78rem; padding: 4px 10px; border-radius: 99px;
  background: var(--bad-soft); color: var(--bad); border: 1px solid transparent;
  white-space: nowrap;
}
.conn-badge.ok { background: var(--good-soft); color: var(--good); }
.conn-badge.warn { background: var(--warn-soft); color: var(--warn); }

.main { padding: 20px 22px 40px; max-width: 1320px; width: 100%; }

.page-head { display: flex; gap: 22px; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; flex-wrap: wrap; }
.eyebrow { color: var(--accent); font-size: 0.72rem; letter-spacing: 0.16em; font-weight: 700; margin-bottom: 4px; }
.page-desc { color: var(--muted); }

.search { position: relative; width: min(360px, 100%); }
.search input { width: 100%; }
.search-results {
  position: absolute; z-index: 30; top: calc(100% + 4px); left: 0; right: 0;
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  box-shadow: var(--shadow); max-height: 300px; overflow-y: auto; padding: 4px;
}
.search-results button {
  display: block; width: 100%; text-align: left; background: transparent; border: 0;
  color: var(--text); padding: 8px 10px; border-radius: 7px; cursor: pointer; font: inherit;
}
.search-results button:hover, .search-results button:focus { background: var(--accent-soft); }
.search-results small { color: var(--muted); margin-left: 6px; }

.page { display: none; animation: fade 0.18s ease; }
.page.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: none; } }

/* ── cards / panels ────────────────────────────────────────────────────── */

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 14px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 15px 16px; box-shadow: var(--shadow); min-width: 0;
}
.card.metric { display: flex; flex-direction: column; gap: 2px; text-align: left; color: inherit; font: inherit; }
.card.clickable { cursor: pointer; }
.card.clickable:hover { border-color: var(--accent); transform: translateY(-1px); }
.metric-label { color: var(--muted); font-size: 0.8rem; }
.metric-value { font-size: 1.35rem; font-weight: 700; letter-spacing: 0.01em; }
.metric-hint { color: var(--muted); font-size: 0.78rem; }

.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; margin-bottom: 14px; box-shadow: var(--shadow); min-width: 0;
}
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.grid { display: grid; gap: 14px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid .panel { margin-bottom: 0; }

/* ── forms ─────────────────────────────────────────────────────────────── */

label { display: block; color: var(--muted); font-size: 0.82rem; margin: 8px 0 4px; }
label.check { display: flex; align-items: center; gap: 7px; color: var(--text); font-size: 0.86rem; margin-top: 10px; }
label.check input { width: auto; margin: 0; }
input, select, textarea {
  width: 100%; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 9px; padding: 8px 10px;
  font: inherit; outline: none; min-height: 36px;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
textarea { resize: vertical; min-height: 80px; font-family: var(--mono); line-height: 1.55; }
select { cursor: pointer; }

.inline { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 8px 0; }
.inline input, .inline select { width: auto; flex: 1 1 160px; min-width: 0; }

button {
  font: inherit; cursor: pointer; border-radius: 9px; padding: 8px 14px;
  border: 1px solid var(--line); background: var(--panel-2); color: var(--text);
  transition: background 0.12s ease, border-color 0.12s ease, transform 0.05s ease;
}
button:hover { border-color: var(--accent); }
button:active { transform: translateY(1px); }
button:disabled { opacity: 0.55; cursor: wait; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover { background: var(--accent-hover); }
button.danger { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 45%, var(--line)); }
button.small { padding: 5px 10px; font-size: 0.8rem; }
button.link-button { background: transparent; border: 0; color: var(--accent); padding: 4px 0; }
.button-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
#modeRow button.active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); font-weight: 600; }

.check-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 4px 14px; }
.check-grid label { display: flex; align-items: center; gap: 7px; margin: 3px 0; color: var(--text); font-size: 0.84rem; }
.check-grid input { width: auto; }

.meta { color: var(--muted); font-size: 0.82rem; min-height: 1.2em; }
.meta.ok { color: var(--good); }
.meta.err { color: var(--bad); }
.meta.warn { color: var(--warn); }
.hint { color: var(--muted); font-size: 0.8rem; }
.empty { color: var(--muted); text-align: center; padding: 16px 8px; }

.alert {
  background: var(--bad-soft); border: 1px solid color-mix(in srgb, var(--bad) 35%, transparent);
  color: var(--bad); border-radius: 10px; padding: 10px 12px; margin-bottom: 12px;
}
.alert-inline {
  margin-top: 12px; padding: 10px 12px; border-radius: 10px;
  background: var(--warn-soft); color: var(--warn); border: 1px solid color-mix(in srgb, var(--warn) 30%, transparent);
}
.alert-inline code { display: block; margin: 6px 0; color: var(--text); word-break: break-all; }

/* ── tables ────────────────────────────────────────────────────────────── */

.table-wrap { overflow-x: auto; margin-top: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 0.84rem; }
th, td { text-align: left; padding: 8px 9px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; white-space: nowrap; background: var(--panel-2); position: sticky; top: 0; }
tr:hover td { background: var(--panel-2); }
td code, .mono { font-family: var(--mono); font-size: 0.8rem; word-break: break-all; }
td.empty { text-align: center; color: var(--muted); }
.bar { height: 7px; border-radius: 99px; background: var(--bg-soft); overflow: hidden; min-width: 60px; }
.bar > span { display: block; height: 100%; background: var(--accent); }

.pill {
  display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 0.72rem;
  background: var(--bg-soft); color: var(--muted); border: 1px solid var(--line);
}
.pill.ok { background: var(--good-soft); color: var(--good); border-color: transparent; }
.pill.warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.pill.err { background: var(--bad-soft); color: var(--bad); border-color: transparent; }
.pill.owner { background: var(--bad-soft); color: var(--bad); border-color: transparent; }

.log {
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px;
  padding: 10px 12px; margin: 8px 0 0; max-height: 360px; overflow: auto;
  font-family: var(--mono); font-size: 0.78rem; white-space: pre-wrap; word-break: break-word;
  color: var(--text);
}

.role-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.role-list button { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; text-align: left; max-width: 100%; }
.role-list small { color: var(--muted); font-size: 0.72rem; }
.chip-list { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.chip-list button, .chip {
  font-size: 0.78rem; padding: 3px 9px; border-radius: 99px;
  background: var(--bg-soft); border: 1px solid var(--line); color: var(--text);
}
.voice-list { display: flex; flex-direction: column; gap: 4px; margin-top: 10px; max-height: 260px; overflow: auto; }
.voice-list label { display: flex; align-items: center; gap: 8px; margin: 0; padding: 5px 7px; border-radius: 8px; color: var(--text); }
.voice-list label:hover { background: var(--panel-2); }
.voice-list input { width: auto; }
.voice-list small { color: var(--muted); }

.tabs { display: flex; gap: 4px; background: var(--bg-soft); padding: 3px; border-radius: 10px; }
.tab { border: 0; background: transparent; padding: 5px 11px; border-radius: 8px; font-size: 0.82rem; }
.tab.active { background: var(--panel); color: var(--accent); font-weight: 600; box-shadow: 0 1px 4px rgba(0,0,0,0.08); }

.chart { width: 100%; overflow: hidden; margin-top: 8px; }
.chart svg { display: block; width: 100%; height: auto; }
.legend { color: var(--muted); font-size: 0.76rem; margin-top: 4px; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 3px; margin: 0 4px 0 10px; vertical-align: middle; }
.dot.off { background: var(--accent); }
.dot.peak { background: var(--peak); }
.dot.mixed { background: var(--mixed); }

.footer { color: var(--muted); font-size: 0.76rem; padding-top: 8px; }

/* ── gate / toast / dialog ─────────────────────────────────────────────── */

.gate {
  position: fixed; inset: 0; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at 20% 20%, var(--accent-soft), transparent 45%), var(--bg);
  padding: 20px; z-index: 50;
}
.gate-card {
  width: min(430px, 100%); background: var(--panel); border: 1px solid var(--line);
  border-radius: 18px; padding: 24px; box-shadow: var(--shadow);
}
.gate-card h1 { font-size: 1.3rem; }
.gate-hint { color: var(--muted); font-size: 0.8rem; }
.gate-card button { width: 100%; margin-top: 12px; }

.toast {
  position: fixed; right: 18px; bottom: 18px; z-index: 60;
  background: var(--text); color: var(--bg); padding: 9px 14px; border-radius: 10px;
  box-shadow: var(--shadow); font-size: 0.84rem;
}
.overlay {
  position: fixed; inset: 0; background: rgba(8, 12, 20, 0.55); z-index: 55;
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.dialog { width: min(420px, 100%); background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px; box-shadow: var(--shadow); }
.dialog p { color: var(--muted); }

/* ── responsive ────────────────────────────────────────────────────────── */

@media (max-width: 940px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--line); padding: 12px; }
  #nav { flex-direction: row; overflow-x: auto; gap: 4px; }
  .nav-group { display: none; }
  #nav button { white-space: nowrap; padding: 7px 11px; }
  .topbar { padding: 10px 14px; flex-wrap: wrap; }
  .crumbs { flex-basis: 100%; }
  .main { padding: 14px; }
  .page-head { gap: 10px; }
  .search { width: 100%; }
  h1 { font-size: 1.3rem; }
  .metric-value { font-size: 1.15rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

.flash { animation: flash 1.6s ease; }
@keyframes flash {
  0%, 100% { box-shadow: none; }
  20%, 70% { box-shadow: 0 0 0 4px var(--accent-soft); }
}