/* ============================================================================
   P2P 语音 — 现代桌面风格样式表
   结构：tokens → 基础 → 标题栏 → 大厅 → 通话（侧栏/舞台/聊天）→ 模态 → 提示
   说明：不引入任何外部资源；所有颜色走 CSS 变量，便于亮/暗主题切换。
   ========================================================================== */

/* ─────────────────────────────── 设计令牌 ─────────────────────────────── */

:root {
  --titlebar-h: 44px;
  --rail-w: 288px;
  --chat-w: 340px;

  --bg: #0a0c12;
  --bg-glow-1: #1b2a55;
  --bg-glow-2: #2a1b45;
  --surface: #12151f;
  --surface-2: #171b26;
  --surface-3: #1e2331;
  --surface-4: #252c3d;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text: #e9edf5;
  --text-dim: #b7c0d1;
  --muted: #8d97ab;
  --accent: #5b8cff;
  --accent-2: #8b5cff;
  --accent-ink: #ffffff;
  --ok: #3ddc97;
  --warn: #ffc061;
  --danger: #ff6b6b;
  --danger-ink: #ffd7d7;

  --radius-lg: 20px;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-2: 0 14px 36px rgba(0, 0, 0, 0.42);
  --shadow-3: 0 28px 70px rgba(0, 0, 0, 0.55);
  --ring: 0 0 0 3px color-mix(in srgb, var(--accent) 35%, transparent);
  --ease: cubic-bezier(0.22, 0.8, 0.28, 1);
  --font: "Segoe UI Variable Text", system-ui, -apple-system, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", Roboto, sans-serif;
  --mono: "Cascadia Code", ui-monospace, "SF Mono", Consolas, monospace;
}

[data-theme="light"] {
  --bg: #eef1f8;
  --bg-glow-1: #d6e3ff;
  --bg-glow-2: #e9d9ff;
  --surface: #ffffff;
  --surface-2: #f4f6fb;
  --surface-3: #e8ecf6;
  --surface-4: #dde4f2;
  --border: rgba(16, 26, 48, 0.08);
  --border-strong: rgba(16, 26, 48, 0.16);
  --text: #131a2b;
  --text-dim: #38425a;
  --muted: #61708c;
  --shadow-1: 0 1px 2px rgba(20, 32, 60, 0.08);
  --shadow-2: 0 14px 34px rgba(20, 32, 60, 0.14);
  --shadow-3: 0 28px 60px rgba(20, 32, 60, 0.2);
  --danger-ink: #b4232a;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background:
    radial-gradient(1100px 620px at 8% -12%, var(--bg-glow-1), transparent 60%),
    radial-gradient(920px 560px at 102% 4%, var(--bg-glow-2), transparent 58%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  user-select: none;
}

button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 650; letter-spacing: -0.012em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--mono); font-size: 12px; }

.hidden { display: none !important; }
.muted { color: var(--muted); font-weight: 400; }
.hint { color: var(--muted); font-size: 12.5px; line-height: 1.55; }
.small { font-size: 12.5px; }
.block { width: 100%; }
.row { display: flex; align-items: center; gap: 10px; }
.row.between { justify-content: space-between; }
.section-title { font-size: 13px; font-weight: 600; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--text) 14%, transparent);
  border: 3px solid transparent;
  background-clip: content-box;
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover { background: color-mix(in srgb, var(--text) 26%, transparent); background-clip: content-box; }

:focus-visible { outline: none; box-shadow: var(--ring); border-radius: var(--radius-sm); }

/* ─────────────────────────────── 基础控件 ─────────────────────────────── */

.btn, button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 15px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  transition: background 0.16s var(--ease), border-color 0.16s var(--ease),
    transform 0.1s var(--ease), box-shadow 0.16s var(--ease), color 0.16s var(--ease);
}
.btn:hover:not(:disabled) { background: var(--surface-3); border-color: var(--border-strong); }
.btn:active:not(:disabled) { transform: translateY(1px) scale(0.995); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  color: var(--accent-ink);
  font-weight: 620;
  box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 34%, transparent);
}
.btn.primary:hover:not(:disabled) { filter: brightness(1.07); }
.btn.danger { background: color-mix(in srgb, var(--danger) 16%, var(--surface-2)); border-color: color-mix(in srgb, var(--danger) 42%, transparent); color: var(--danger-ink); }
.btn.danger:hover:not(:disabled) { background: color-mix(in srgb, var(--danger) 26%, var(--surface-2)); }
[data-theme="light"] .btn.danger { background: #e5484d; border-color: transparent; color: #fff; }
[data-theme="light"] .btn.danger:hover:not(:disabled) { background: #d13b40; }

button.ghost, .ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.16s var(--ease), color 0.16s var(--ease), border-color 0.16s var(--ease);
}
button.ghost:hover, .ghost:hover { background: var(--surface-2); color: var(--text); border-color: var(--border-strong); }
button.ghost.small { padding: 6px 10px; font-size: 12.5px; }

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  transition: border-color 0.16s var(--ease), background 0.16s var(--ease), box-shadow 0.16s var(--ease);
}
input::placeholder { color: color-mix(in srgb, var(--muted) 85%, transparent); }
input:hover, select:hover { border-color: var(--border-strong); }
input:focus, select:focus { border-color: color-mix(in srgb, var(--accent) 55%, transparent); box-shadow: var(--ring); }
select { cursor: pointer; }
select option { background: var(--surface); color: var(--text); }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 80%, transparent);
  font-size: 12px;
  color: var(--text-dim);
}
.badge {
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  font-size: 11.5px;
  color: var(--muted);
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 70%, transparent);
  font-size: 11.5px;
  color: var(--muted);
  white-space: nowrap;
}
.tag.good { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
.tag.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.tag.bad { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); }

.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--muted);
  flex: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--muted) 20%, transparent);
  transition: background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.dot.online { background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 22%, transparent); }
.dot.connecting { background: var(--warn); animation: pulse 1.2s infinite; }
.dot.offline { background: var(--danger); box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 22%, transparent); }

@keyframes pulse { 50% { opacity: 0.35; } }

.card {
  background: linear-gradient(180deg, color-mix(in srgb, var(--text) 4%, transparent), transparent 40%), var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
  padding: 20px;
}
.card.compact { padding: 12px 16px; box-shadow: var(--shadow-1); }
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.card-head h2 { font-size: 14px; }

/* ─────────────────────────────── 应用外框 ─────────────────────────────── */

.app {
  display: grid;
  grid-template-rows: var(--titlebar-h) minmax(0, 1fr);
  height: 100vh;
}

.screen { min-height: 0; overflow: hidden; }

/* ─────────────────────────────── 标题栏 ─────────────────────────────── */

.titlebar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 0 0 0 14px;
  height: var(--titlebar-h);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-app-region: drag;
  z-index: 30;
}
.titlebar button, .titlebar input, .titlebar select, .titlebar a { -webkit-app-region: no-drag; }

.tb-brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.tb-logo { display: flex; align-items: flex-end; gap: 2px; height: 18px; width: 22px; flex: none; }
.tb-logo span { flex: 1; border-radius: 2px; background: linear-gradient(180deg, var(--accent), var(--accent-2)); }
.tb-logo span:nth-child(1) { height: 40%; }
.tb-logo span:nth-child(2) { height: 72%; }
.tb-logo span:nth-child(3) { height: 100%; }
.tb-logo span:nth-child(4) { height: 62%; }
.tb-logo span:nth-child(5) { height: 34%; }

.tb-name { font-weight: 620; letter-spacing: -0.01em; white-space: nowrap; }
.tb-chip {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 30vw;
}
.tb-status { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--muted); white-space: nowrap; }
.tb-actions { display: flex; align-items: center; justify-content: flex-end; gap: 4px; }

.tb-icon {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  border: none; background: transparent; color: var(--muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  transition: background 0.15s var(--ease), color 0.15s var(--ease);
}
.tb-icon:hover { background: var(--surface-3); color: var(--text); }

.win-controls { display: none; align-items: center; height: var(--titlebar-h); margin-left: 6px; }
.is-desktop .win-controls { display: flex; }
.win-btn {
  width: 46px; height: var(--titlebar-h);
  display: grid; place-items: center;
  border: none; background: transparent; color: var(--text-dim);
  cursor: pointer;
  transition: background 0.12s var(--ease), color 0.12s var(--ease);
}
.win-btn svg { width: 10px; height: 10px; fill: none; stroke: currentColor; stroke-width: 1.1; }
.win-btn:hover { background: var(--surface-3); color: var(--text); }
.win-btn.danger:hover { background: #e5484d; color: #fff; }

/* ─────────────────────────────── 大厅 ─────────────────────────────── */

.lobby { overflow-y: auto; padding: clamp(18px, 3.4vw, 42px); display: grid; place-items: center; }
.lobby-grid {
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 20px;
  align-items: start;
}
.lobby-main { display: grid; gap: 22px; padding: 26px; }
.lobby-side { display: grid; gap: 16px; }

.hero h1 { font-size: clamp(22px, 2.5vw, 30px); letter-spacing: -0.02em; }
.hero .sub { color: var(--text-dim); margin-top: 8px; max-width: 52ch; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }

.form { display: grid; gap: 14px; }
.field { display: grid; gap: 7px; }
.field > label, .field > span { font-size: 12.5px; color: var(--muted); }
.inline { display: flex; gap: 8px; }
.inline input { flex: 1; min-width: 0; }
.inline button { flex: none; white-space: nowrap; }

.device-check { display: grid; gap: 10px; border-top: 1px solid var(--border); padding-top: 18px; }
.meter { height: 8px; border-radius: 999px; background: var(--surface-3); overflow: hidden; }
.meter-fill {
  height: 100%; width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--ok), var(--accent) 55%, var(--warn));
  transition: width 0.06s linear;
}

.recent { display: grid; gap: 8px; }
.recent-item {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: background 0.16s var(--ease), border-color 0.16s var(--ease), transform 0.1s var(--ease);
}
.recent-item:hover { background: var(--surface-3); border-color: var(--border-strong); transform: translateY(-1px); }
.recent-room { font-weight: 560; }
.recent-item .hint { font-size: 11.5px; }
.empty { color: var(--muted); padding: 6px 2px; }

.steps { display: grid; gap: 11px; color: var(--muted); font-size: 13px; line-height: 1.6; counter-reset: step; }
.steps li { position: relative; padding-left: 30px; }
.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute; left: 0; top: 1px;
  width: 20px; height: 20px;
  display: grid; place-items: center;
  border-radius: 7px;
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  color: var(--accent);
  font-size: 11.5px; font-weight: 700;
}
.steps strong { color: var(--text); }

/* ─────────────────────────────── 通话：布局 ─────────────────────────────── */

.call {
  display: grid;
  grid-template-columns: var(--rail-w) minmax(0, 1fr) auto;
  min-height: 0;
}

/* 左栏 */
.rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px 14px;
  border-right: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 55%, transparent);
  min-height: 0;
}
.rail-me { display: flex; align-items: center; gap: 11px; padding: 4px 6px; flex: none; }
.rail-me-info { display: grid; gap: 3px; min-width: 0; }
.rail-me-info strong { font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rail-block { display: flex; flex-direction: column; gap: 8px; min-height: 0; flex: none; }
.rail-block.grow { flex: 1 1 auto; min-height: 0; }
.rail-title { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; padding: 0 6px; }

.invite { display: grid; gap: 8px; padding: 10px; border-radius: var(--radius); background: var(--surface-2); border: 1px solid var(--border); }
.invite code { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-dim); user-select: text; }
.invite-actions { display: flex; gap: 8px; }

.rail-foot { display: grid; gap: 8px; flex: none; }
.rail-foot .ghost { display: inline-flex; align-items: center; justify-content: center; gap: 8px; }

/* 头像 */
.avatar {
  --a1: #5b8cff;
  --a2: #8b5cff;
  position: relative;
  display: grid;
  place-items: center;
  width: 56px; height: 56px;
  flex: none;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--a1), var(--a2));
  color: #fff;
  font-weight: 650;
  letter-spacing: 0.02em;
  font-size: 18px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), var(--shadow-1);
  transition: box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
}
.avatar.sm { width: 36px; height: 36px; font-size: 13px; }
.avatar.xs { width: 26px; height: 26px; font-size: 10.5px; }
.avatar.me { box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), var(--shadow-1), 0 0 0 2px color-mix(in srgb, var(--accent) 45%, transparent); }

/* 成员列表（左栏） */
.peer-list { display: grid; gap: 6px; overflow-y: auto; padding: 2px; align-content: start; min-height: 0; }
.peer-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas: "av main flags" "av vol vol";
  align-items: center;
  gap: 4px 10px;
  padding: 8px 10px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background 0.16s var(--ease), border-color 0.16s var(--ease);
}
.peer-row:hover { background: var(--surface-2); border-color: var(--border); }
.peer-row .avatar { grid-area: av; }
.peer-row-main { grid-area: main; display: grid; gap: 2px; min-width: 0; }
.peer-row-name { display: flex; align-items: center; gap: 6px; font-size: 13.5px; font-weight: 560; min-width: 0; }
.peer-row-name > span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.peer-row-meta { display: flex; gap: 6px; flex-wrap: wrap; }
.peer-row-flags { grid-area: flags; display: flex; align-items: center; gap: 4px; color: var(--muted); font-size: 12px; }
.peer-row .vol {
  grid-area: vol;
  display: flex; align-items: center; gap: 8px;
  height: 0; opacity: 0; overflow: hidden;
  transition: height 0.18s var(--ease), opacity 0.18s var(--ease);
}
.peer-row:hover .vol, .peer-row:focus-within .vol { height: 20px; opacity: 1; }
.vol span { font-size: 11px; color: var(--muted); }
.vol input[type="range"] {
  padding: 0; border: none; background: transparent;
  accent-color: var(--accent);
  height: 16px;
}

.peer-row.speaking { background: color-mix(in srgb, var(--ok) 12%, transparent); border-color: color-mix(in srgb, var(--ok) 34%, transparent); }
.peer-row.speaking .avatar { box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 30%, transparent); }
.peer-row.muted .avatar { filter: saturate(0.35); }
.peer-row.away { opacity: 0.55; }
.peer-row.failed .avatar { box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 32%, transparent); }

/* 中栏舞台 */
.stage {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  min-height: 0;
  padding: 14px clamp(14px, 2vw, 26px) 0;
}
.stage-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 6px 4px 14px; }
.stage-title { display: flex; align-items: baseline; gap: 10px; min-width: 0; }
.stage-title strong { font-size: 17px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stage-actions { display: flex; gap: 8px; }
.stage-actions button[aria-pressed="true"] { border-color: color-mix(in srgb, var(--accent) 50%, transparent); background: color-mix(in srgb, var(--accent) 16%, var(--surface-2)); color: var(--text); }

/* 舞台网格：列数由参与人数决定（ui.js 写入 --cols），整体居中 */
.grid {
  --cols: 2;
  display: grid;
  grid-template-columns: repeat(var(--cols), minmax(0, 1fr));
  grid-auto-rows: minmax(152px, 236px);
  gap: 14px;
  place-content: safe center;
  width: 100%;
  max-width: calc(var(--cols) * 380px + (var(--cols) - 1) * 14px);
  margin: 0 auto;
  overflow-y: auto;
  padding: 4px 4px 132px;
  min-height: 0;
}
.grid.single { max-width: 400px; }

/* 舞台成员卡片 */
.tile {
  position: relative;
  display: grid;
  grid-template-rows: 1fr auto auto;
  place-items: center;
  gap: 10px;
  padding: 22px 16px 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background:
    radial-gradient(120% 80% at 50% -20%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 65%),
    linear-gradient(180deg, color-mix(in srgb, var(--text) 3%, transparent), transparent 45%),
    var(--surface);
  box-shadow: var(--shadow-1);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
  overflow: hidden;
}
.tile:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); }
.tile.self { border-style: dashed; }
.tile.speaking {
  border-color: color-mix(in srgb, var(--ok) 55%, var(--border));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--ok) 35%, transparent), 0 18px 44px color-mix(in srgb, var(--ok) 16%, transparent);
}
.tile.speaking .avatar { transform: scale(1.03); }
.tile.away { opacity: 0.6; }
.tile.failed { border-color: color-mix(in srgb, var(--danger) 50%, var(--border)); }
.tile.muted .avatar { filter: saturate(0.3); }

.tile-top { position: relative; display: grid; place-items: center; }
.tile .avatar { width: 76px; height: 76px; font-size: 24px; }

/* 说话均衡器 */
.eq { display: flex; align-items: flex-end; gap: 3px; height: 14px; opacity: 0; transition: opacity 0.2s var(--ease); }
.tile.speaking .eq, .peer-row.speaking .eq { opacity: 1; }
.eq i { width: 3px; height: 100%; border-radius: 999px; background: var(--ok); transform-origin: bottom; animation: eq 0.9s ease-in-out infinite; }
.eq i:nth-child(2) { animation-delay: 0.12s; }
.eq i:nth-child(3) { animation-delay: 0.24s; }
.eq i:nth-child(4) { animation-delay: 0.36s; }
@keyframes eq { 0%, 100% { transform: scaleY(0.35); } 50% { transform: scaleY(1); } }

.tile-name { display: flex; align-items: center; gap: 6px; font-weight: 600; font-size: 15px; text-align: center; min-width: 0; max-width: 100%; }
.tile-name > span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tile-you { font-size: 11px; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 0 7px; flex: none; }
.tile-meta { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; justify-content: center; }
.peer-audio { display: none; }

.stage-empty {
  position: absolute;
  left: 0; right: 0; bottom: 128px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  pointer-events: none;
}

/* 底部悬浮控制坞 */
.dock-wrap {
  position: absolute;
  left: 0; right: 0; bottom: 18px;
  display: grid;
  place-items: center;
  pointer-events: none;
  padding: 0 16px;
}
.dock {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 7px;
  border-radius: 18px;
  border: 1px solid var(--border-strong);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  backdrop-filter: blur(22px) saturate(160%);
  box-shadow: var(--shadow-3), inset 0 1px 0 color-mix(in srgb, var(--text) 8%, transparent);
  max-width: 100%;
  flex-wrap: nowrap;
}
.dock-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.16s var(--ease), color 0.16s var(--ease), border-color 0.16s var(--ease);
}
.dock-btn:hover { background: var(--surface-3); color: var(--text); }
.dock-btn[aria-pressed="true"] {
  background: color-mix(in srgb, var(--accent) 20%, var(--surface-2));
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  color: var(--text);
}
.dock-btn.danger[aria-pressed="true"] { background: color-mix(in srgb, var(--danger) 20%, var(--surface-2)); border-color: color-mix(in srgb, var(--danger) 45%, transparent); }
.dock-icon { font-size: 15px; line-height: 1; }
.dock-label { font-size: 13px; font-weight: 540; white-space: nowrap; }
.dock-btn kbd {
  font-family: var(--font);
  font-size: 10.5px;
  color: var(--muted);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 0 5px;
  background: color-mix(in srgb, var(--surface-2) 70%, transparent);
}
.dock-sep { width: 1px; height: 28px; background: var(--border); margin: 0 4px; }
.dock-btn.danger { color: var(--danger-ink); }
.dock-btn.danger:hover { background: color-mix(in srgb, var(--danger) 22%, var(--surface-2)); color: #fff; }
[data-theme="light"] .dock-btn.danger { color: #c8353a; }
[data-theme="light"] .dock-btn.danger:hover { background: #e5484d; color: #fff; }
.device-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* ─────────────────────────────── 聊天面板 ─────────────────────────────── */

.chat {
  width: var(--chat-w);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  border-left: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 55%, transparent);
  min-height: 0;
}
.chat-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 12px 12px 16px; border-bottom: 1px solid var(--border); }
.chat-head strong { font-size: 14px; }
.chat-head .hint { display: block; font-size: 11.5px; }
.chat-log { overflow-y: auto; padding: 14px 14px 6px; display: grid; gap: 12px; align-content: start; }
.chat-msg { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 9px; align-items: start; }
.chat-msg .avatar { grid-column: 1; }
.chat-msg .bubble-wrap { display: grid; gap: 3px; min-width: 0; }
.chat-msg .who { font-size: 11.5px; color: var(--muted); }
.chat-msg .body {
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 8px 11px;
  border-radius: 4px 12px 12px 12px;
  font-size: 13.5px;
  line-height: 1.55;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  user-select: text;
}
.chat-msg.self { grid-template-columns: minmax(0, 1fr) auto; }
.chat-msg.self .avatar { grid-column: 2; }
.chat-msg.self .bubble-wrap { grid-column: 1; grid-row: 1; justify-items: end; }
.chat-msg.self .who { text-align: right; }
.chat-msg.self .body {
  background: color-mix(in srgb, var(--accent) 26%, var(--surface-2));
  border-color: color-mix(in srgb, var(--accent) 42%, transparent);
  border-radius: 12px 4px 12px 12px;
}
.chat-msg.system { grid-template-columns: minmax(0, 1fr); justify-items: center; }
.chat-msg.system .body {
  background: transparent; border-style: dashed; color: var(--muted);
  font-size: 12px; border-radius: 999px; padding: 4px 12px;
}
.chat-form { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--border); }
.chat-form input { flex: 1; min-width: 0; }
.chat-form button { flex: none; }

/* ─────────────────────────────── 模态框 ─────────────────────────────── */

.modal { position: fixed; inset: 0; z-index: 80; display: grid; place-items: center; padding: 24px; }
.modal-backdrop { position: absolute; inset: 0; background: color-mix(in srgb, #04060c 62%, transparent); backdrop-filter: blur(7px); animation: fade-in 0.16s var(--ease); }
.modal-card {
  position: relative;
  width: min(720px, 100%);
  max-height: min(84vh, 760px);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  box-shadow: var(--shadow-3);
  animation: pop-in 0.18s var(--ease);
  overflow: hidden;
}
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; border-bottom: 1px solid var(--border); }
.modal-head h2 { font-size: 16px; }
.modal-body { overflow-y: auto; padding: 18px; display: grid; gap: 22px; }
.settings-section { display: grid; gap: 12px; }
.settings-section h3 { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; display: flex; align-items: center; gap: 8px; }
.settings-section h3 .hint { text-transform: none; letter-spacing: 0; }
.switch-row { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.switch { display: flex; align-items: center; gap: 10px; font-size: 13.5px; cursor: pointer; padding: 9px 11px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface-2); transition: border-color 0.16s var(--ease); }
.switch:hover { border-color: var(--border-strong); }
.switch input { width: auto; margin: 0; accent-color: var(--accent); }

.stats-table, .about-table { display: grid; gap: 6px; font-size: 12.5px; }
.stats-row { display: grid; grid-template-columns: 1.3fr 0.8fr 0.8fr 0.8fr auto; gap: 8px; align-items: center; padding: 5px 8px; border-radius: 8px; }
.stats-row:nth-child(odd) { background: color-mix(in srgb, var(--text) 3%, transparent); }
.stats-row.head { color: var(--muted); font-size: 11.5px; background: transparent; }
.stats-row span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.about-row { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 10px; align-items: center; padding: 5px 8px; }
.about-row > span:first-child { color: var(--muted); }
.about-row code { user-select: text; overflow-wrap: anywhere; }

/* ─────────────────────────────── Toasts ─────────────────────────────── */

/* 提示浮层放在控制坞上方，避免遮挡通话按钮 */
.toasts { position: fixed; right: 18px; bottom: 92px; z-index: 90; display: grid; gap: 10px; width: min(360px, 88vw); pointer-events: none; }
.toast {
  pointer-events: auto;
  padding: 11px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-2);
  font-size: 13px;
  line-height: 1.5;
  animation: slide-up 0.2s var(--ease);
  cursor: pointer;
}
.toast.info { border-left-color: var(--accent); }
.toast.ok { border-left-color: var(--ok); }
.toast.warn { border-left-color: var(--warn); }
.toast.error { border-left-color: var(--danger); }

@keyframes slide-up { from { opacity: 0; transform: translateY(8px) scale(0.98); } }
@keyframes fade-in { from { opacity: 0; } }
@keyframes pop-in { from { opacity: 0; transform: translateY(6px) scale(0.985); } }

/* ─────────────────────── 公网连接面板（public/js/netpanel.js）───────────────────────
   所有规则只用 --* 设计令牌与 .net-* 前缀，亮/暗主题自动适配。 */

.net-status, .net-methods, .net-config, .net-ice { display: grid; gap: 10px; }
.net-kv { display: grid; gap: 4px; font-size: 12.5px; }
.net-row { display: grid; grid-template-columns: 128px minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 5px 8px; border-radius: 8px; }
.net-row:nth-child(odd) { background: color-mix(in srgb, var(--text) 3%, transparent); }
.net-label { color: var(--muted); }
.net-value { min-width: 0; overflow-wrap: anywhere; }
.net-row code { user-select: text; overflow-wrap: anywhere; }

.net-methods { gap: 8px; }
.net-method { display: grid; gap: 7px; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface-2); }
.net-method-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.net-method-head strong { font-size: 13px; font-weight: 620; }

.net-snippet { display: flex; align-items: center; gap: 8px; }
.net-snippet code {
  flex: 1 1 auto;
  min-width: 0;
  padding: 6px 9px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-3);
  user-select: text;
  overflow-wrap: anywhere;
}

.net-actions { flex-wrap: wrap; }
.net-pair { display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }

.net-note { font-size: 12.5px; line-height: 1.55; color: var(--muted); overflow-wrap: anywhere; }
.net-note.good { color: var(--ok); }
.net-note.warn { color: var(--warn); }
.net-note.bad { color: var(--danger); }

.net-alert {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 9px 11px;
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in srgb, var(--danger) 38%, transparent);
  background: color-mix(in srgb, var(--danger) 12%, var(--surface-2));
  color: var(--danger-ink);
  font-size: 12.5px;
  line-height: 1.5;
}
[data-theme="light"] .net-alert { background: color-mix(in srgb, var(--danger) 8%, var(--surface)); }

/* ─────────────────────── 键位设置（public/js/keybinds.js）───────────────────────
   规则只用 --* 设计令牌与 .kb-* 前缀，亮/暗主题自动适配。 */

.kb-toolbar { flex-wrap: wrap; gap: 8px; }
.kb-hint { transition: color 0.16s var(--ease); }
.kb-hint.ok { color: var(--ok); }
.kb-hint.warn { color: var(--warn); }
.kb-hint.bad { color: var(--danger); }

.kb-list { display: grid; gap: 6px; }
.kb-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 5px 8px; border-radius: 8px; }
.kb-row:nth-child(odd) { background: color-mix(in srgb, var(--text) 3%, transparent); }

.kb-info { display: grid; gap: 2px; min-width: 0; }
.kb-label { font-size: 13.5px; }
.kb-meta { font-size: 11.5px; color: var(--muted); }

.kb-key {
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text);
  min-width: 62px;
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-3);
  cursor: pointer;
  transition: border-color 0.16s var(--ease), background 0.16s var(--ease), color 0.16s var(--ease);
}
.kb-key:hover { border-color: var(--border-strong); background: var(--surface-4); }
.kb-key:focus-visible { outline: 2px solid color-mix(in srgb, var(--accent) 60%, transparent); outline-offset: 1px; }
.kb-key.is-custom { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.kb-key.unbound { color: var(--muted); border-style: dashed; }
.kb-key.recording {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 22%, var(--surface-3));
  color: var(--text);
  animation: kb-pulse 0.9s var(--ease) infinite alternate;
}

@keyframes kb-pulse { from { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 45%, transparent); } to { box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 0%, transparent); } }

/* ─────────────────────────────── 响应式 ─────────────────────────────── */

@media (max-width: 1180px) {
  :root { --rail-w: 236px; --chat-w: 280px; }
  .avatar { width: 50px; height: 50px; font-size: 16px; }
  .tile .avatar { width: 68px; height: 68px; font-size: 21px; }
  /* keep the dock inside the stage column at narrow widths */
  .dock-btn kbd { display: none; }
  .dock-btn { padding: 9px 10px; }
  .dock { gap: 2px; padding: 6px; }
  .dock-sep { margin: 0 2px; }
}

/* 窄窗口：聊天改为浮层，舞台保持完整 */
@media (max-width: 980px) {
  .lobby-grid { grid-template-columns: minmax(0, 1fr); }
  .chat { position: fixed; top: var(--titlebar-h); right: 0; bottom: 0; z-index: 40; box-shadow: var(--shadow-3); width: min(var(--chat-w), 88vw); }
  .stage { padding-right: 14px; }
  .grid { --cols: 2; max-width: 100%; }
}

@media (max-width: 820px) {
  .rail { position: fixed; top: var(--titlebar-h); left: 0; bottom: 0; width: 270px; z-index: 45; transform: translateX(-102%); transition: transform 0.24s var(--ease); background: var(--surface); }
  .call { grid-template-columns: minmax(0, 1fr) auto; }
  .dock-label { display: none; }
  .dock-btn kbd { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ------------------------------------------- 音频中继（零服务器「救援模式」） */

.net-relay {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 10px;
  align-items: center;
}

.net-relay > label {
  color: var(--muted);
  font-size: 12.5px;
}

.net-relay .hint {
  grid-column: 1 / -1;
}

.net-relay .hint.net-relay-bad {
  color: var(--warn);
}