:root {
  --bg: #0d100f;
  --surface: #151a17;
  --surface-2: #1d2520;
  --border: rgba(214, 235, 222, 0.11);
  --border-strong: rgba(214, 235, 222, 0.23);
  --text: #edf4ef;
  --muted: #a8b5ac;
  --faint: #718078;
  --accent: #7bd6a4;
  --accent-hover: #9be5bc;
  --accent-weak: rgba(123, 214, 164, 0.14);
  --on-accent: #0d1711;
  --success: #7bd6a4;
  --warn: #e0a53a;
  --danger: #e5645c;
  --radius: 10px;
  --radius-sm: 7px;
  --mono: "SF Mono", "JetBrains Mono", "Fira Code", ui-monospace, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 20px;
  background: var(--bg);
}
.auth-card {
  width: min(100%, 380px);
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}
.auth-card h1 { margin: 0; font-size: 24px; }
.auth-card .view-sub { margin: 6px 0 22px; }
.auth-card label { margin-bottom: 7px; }
.auth-card .btn-lg { margin-top: 16px; }

.app {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 24px 48px;
}

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  margin-bottom: 30px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.2px;
}
.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-weak);
}
.topbar-right { display: flex; align-items: center; gap: 10px; }
.pill-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.14s ease-out, border-color 0.14s ease-out, color 0.14s ease-out, background 0.14s ease-out;
}
.pill-btn:hover { border-color: var(--border-strong); color: var(--text); }
.pill-btn:active { transform: scale(0.98); }
.conn { position: relative; }
.conn-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  transition: transform 0.14s ease-out, border-color 0.14s ease-out, color 0.14s ease-out, background 0.14s ease-out;
}
.conn-toggle:hover { border-color: var(--border-strong); color: var(--text); }
.conn-toggle:active { transform: scale(0.98); }
.conn-led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--faint);
}
.conn-led.ok { background: var(--success); }
.conn-caret {
  width: 0; height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid var(--faint);
  transition: transform 0.15s;
}
.conn.open .conn-caret { transform: rotate(180deg); }
.conn.open .conn-toggle { border-color: var(--border-strong); color: var(--text); }

.conn-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: 300px;
  max-width: calc(100vw - 32px);
  padding: 16px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
  z-index: 60;
}
.conn-panel::before {
  content: "";
  position: absolute;
  top: -6px;
  right: 18px;
  width: 11px;
  height: 11px;
  background: var(--surface-2);
  border-left: 1px solid var(--border-strong);
  border-top: 1px solid var(--border-strong);
  transform: rotate(45deg);
}
.conn-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.conn-panel-title { font-weight: 600; font-size: 13px; color: var(--text); }
.conn-badge {
  font-size: 11px;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--faint);
}
.conn-badge.ok { color: var(--success); border-color: rgba(69, 193, 132, 0.4); }
.conn-panel label { margin-bottom: 12px; }
.key-field { position: relative; display: block; }
.key-field input { padding-right: 54px; }
.key-eye {
  position: absolute;
  right: 5px;
  top: 5px;
  bottom: 5px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  padding: 0 8px;
}
.key-eye:hover { color: var(--text); }
.btn-block { width: 100%; margin-top: 4px; }

/* ---------- Views & layout ---------- */
.view { animation: fade 0.2s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.composer { width: 100%; max-width: 500px; margin: 0 auto; }
.composer .view-head { text-align: center; margin-bottom: 20px; }
.composer .hint { text-align: center; }

.call-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(240px, 26vw, 400px);
  gap: 24px;
  align-items: start;
  margin-bottom: 0;
}
.side { min-width: 0; }

/* ---------- Composer card ---------- */
.composer-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
/* Groups are transparent by default (vertical stack); become columns when横排 */
.composer-identity, .composer-fields { display: contents; }

/* Avatar — hover to reveal upload / link actions */
.avatar-zone { display: flex; flex-direction: column; align-items: center; gap: 12px; width: 100%; }
.avatar-box {
  position: relative;
  width: 132px;
  height: 132px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  cursor: pointer;
}
.avatar-box img { width: 100%; height: 100%; object-fit: cover; display: none; }
.avatar-empty { position: absolute; inset: 0; display: grid; place-items: center; color: var(--faint); font-size: 12px; }
.avatar-hover {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  background: rgba(0, 0, 0, 0.55);
  opacity: 0; transition: opacity 0.15s;
}
.avatar-box:hover .avatar-hover, .avatar-box:focus-within .avatar-hover { opacity: 1; }
.avatar-act {
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(0, 0, 0, 0.25);
  color: #fff;
  font-size: 12px;
  font-family: inherit;
  padding: 5px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s;
}
.avatar-act:hover { background: rgba(255, 255, 255, 0.18); }
.url-row { width: 100%; }

/* Name — ghost title input */
.name-input {
  width: 100%;
  text-align: center;
  font-size: 20px;
  font-weight: 600;
  padding: 6px 10px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
}
.name-input:hover { border-color: var(--border); }
.name-input:focus { border-color: var(--accent); background: var(--surface-2); }

/* Voice / mode — compact select chips */
.chip-row { display: flex; gap: 10px; width: 100%; }
.select-chip {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-2);
  cursor: pointer;
}
.select-chip:focus-within { border-color: var(--accent); }
.select-chip-key { color: var(--faint); font-size: 12px; flex-shrink: 0; }
.select-chip select {
  flex: 1;
  min-width: 0;
  padding: 0 18px 0 0;
  border: none;
  background-color: transparent;
  background-position: right center;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.select-chip select:focus { outline: none; }

/* Persona — summary that expands into an editor on click */
.persona-field { width: 100%; }
.persona-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.persona-key { color: var(--faint); font-size: 12px; }
.persona-head-actions { display: flex; align-items: center; gap: 10px; }
.persona-head-actions .link-btn { flex-shrink: 0; white-space: nowrap; }
.persona-preset {
  font-family: inherit; font-size: 12px; color: var(--accent);
  background: transparent; border: 1px solid var(--border);
  border-radius: 6px; padding: 3px 6px; cursor: pointer; max-width: 170px;
}
.link-btn {
  border: none; background: transparent; color: var(--accent);
  font-size: 12.5px; font-family: inherit; cursor: pointer; padding: 0;
}
.persona-summary {
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.6;
  cursor: text;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.persona-summary.empty { color: var(--faint); }
.persona-input { width: 100%; }

.composer-card .advanced { width: 100%; margin-bottom: 0; }
.advanced-body .hint { text-align: left; }
.clone-status { margin: 8px 0 0; font-size: 12.5px; text-align: left; }
.clone-status:empty { display: none; }
.clone-status.ok { color: var(--success); }
.clone-status.err { color: var(--danger); }
.clone-status.warn { color: var(--warn); }

/* ---------- Config form ---------- */
.view-head { margin-bottom: 24px; }
.view-head h1 { margin: 0; font-size: 24px; font-weight: 650; letter-spacing: -0.2px; }
.view-sub { margin: 6px 0 0; color: var(--muted); font-size: 14px; }

.field { margin-bottom: 18px; }
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
label {
  display: block;
  margin-bottom: 7px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
}

input, select, textarea {
  display: block;
  width: 100%;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.15s;
}
input::placeholder, textarea::placeholder { color: var(--faint); }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}
textarea { resize: vertical; min-height: 62px; line-height: 1.6; }

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23a3a7ae' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

select option,
select optgroup {
  color: #17231c;
  background: #ffffff;
}
select option:checked {
  color: #ffffff;
  background: #28724d;
}
.multi-select option {
  color: var(--text);
  background: var(--surface-2);
}
.multi-select option:checked {
  color: var(--on-accent);
  background: var(--accent);
}

.uploader { display: grid; gap: 8px; }
input[type="file"] { padding: 7px 10px; cursor: pointer; color: var(--muted); font-size: 13px; }
input[type="file"]::file-selector-button {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  margin-right: 10px;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  cursor: pointer;
  color: var(--text);
  font-size: 13px;
}
.check-row input { width: 16px; height: 16px; margin: 0; accent-color: var(--accent); }

.hint {
  margin: 8px 0 0;
  color: var(--faint);
  font-size: 12px;
  line-height: 1.55;
}
.hint.error { color: var(--danger); }

/* ---------- Advanced disclosure ---------- */
.advanced {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
}
.advanced > summary {
  padding: 12px 14px;
  cursor: pointer;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  list-style: none;
}
.advanced > summary::-webkit-details-marker { display: none; }
.advanced > summary::before { content: "＋ "; color: var(--faint); }
.advanced[open] > summary::before { content: "－ "; }
.advanced[open] > summary { border-bottom: 1px solid var(--border); }
.advanced-body { padding: 16px 14px; }
.advanced-body .field:last-child, .advanced-body .button-row:last-child { margin-bottom: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, opacity 0.15s;
}
.btn:hover:not(:disabled) { border-color: var(--border-strong); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-sm { padding: 6px 12px; font-size: 12.5px; }
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-lg { width: 100%; padding: 13px; font-size: 15px; margin-top: 4px; }
.button-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 0; }

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
}
.card:last-child { margin-bottom: 0; }
.card-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--faint);
  margin-bottom: 14px;
}
details.card { padding: 0; }
details.card > summary { padding: 18px; margin: 0; cursor: pointer; list-style: none; }
details.card > summary::-webkit-details-marker { display: none; }
details.card > summary::after { content: "＋"; float: right; color: var(--faint); }
details.card[open] > summary::after { content: "－"; }
details.card[open] > summary { padding-bottom: 12px; }
details.card .advanced-body { padding: 0 18px 18px; }

/* ---------- Stepper ---------- */
.stepper { list-style: none; margin: 0; padding: 0; }
.stepper li {
  position: relative;
  display: flex;
  gap: 12px;
  padding-bottom: 14px;
}
.stepper li:last-child { padding-bottom: 0; }
.stepper li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 16px;
  bottom: 0;
  width: 1px;
  background: var(--border);
}
.stepper li:last-child::before { display: none; }
.stepper .dot {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: 13px;
  height: 13px;
  margin-top: 3px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 2px solid var(--border-strong);
}
.step-name { font-size: 13.5px; color: var(--muted); }
.step-detail { font-size: 12px; color: var(--faint); margin-top: 2px; }
.step-detail:empty { display: none; }

.stepper li.active .dot { border-color: var(--accent); background: var(--accent-weak); animation: pulse 1.4s ease-in-out infinite; }
.stepper li.active .step-name { color: var(--text); font-weight: 600; }
.stepper li.done .dot { border-color: var(--success); background: var(--success); }
.stepper li.done .step-name { color: var(--text); }
.stepper li.error .dot { border-color: var(--danger); background: var(--danger); }
.stepper li.error .step-name { color: var(--danger); font-weight: 600; }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 0 var(--accent-weak); } 50% { box-shadow: 0 0 0 4px var(--accent-weak); } }

/* ---------- Facts ---------- */
.facts { margin: 0; }
.facts > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.facts > div:last-child { border-bottom: none; }
.facts dt { color: var(--muted); flex-shrink: 0; }
.facts dd {
  margin: 0;
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  text-align: right;
  word-break: break-all;
}

/* ---------- Video ---------- */
.stage {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}
.video-container {
  position: relative;
  background: #000;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  width: 100%;
  max-width: calc(min(72vh, 640px) * 16 / 9);
  max-width: calc(min(72dvh, 640px) * 16 / 9);
  margin: 0 auto;
  border: 1px solid var(--border);
}
.video-box {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  color: var(--faint);
  font-size: 13px;
}
.remote-video {
  display: none;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}
.local-video {
  display: none;
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 132px;
  height: 99px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  object-fit: cover;
  z-index: 2;
  background: #000;
}
.call-timer {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 4px 11px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.5px;
}
.call-timer::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--danger);
  animation: recdot 1.4s ease-in-out infinite;
}
.call-timer.warn { background: rgba(224, 165, 58, 0.88); }
.call-timer.danger { background: rgba(229, 100, 92, 0.92); }
@keyframes recdot { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

.video-container:fullscreen { border-radius: 0; border: none; }
.video-container:fullscreen .local-video { width: 200px; height: 150px; bottom: 20px; right: 20px; }

.controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}
.ctrl-spacer { flex: 1; }
.ctrl {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.ctrl:hover:not(:disabled) { border-color: var(--border-strong); }
.ctrl:disabled { opacity: 0.4; cursor: not-allowed; }
.ctrl.off { color: var(--warn); border-color: rgba(224, 165, 58, 0.4); }
.ctrl-danger { background: rgba(229, 100, 92, 0.12); border-color: rgba(229, 100, 92, 0.4); color: var(--danger); }
.ctrl-danger:hover:not(:disabled) { background: rgba(229, 100, 92, 0.2); }

/* ---------- Diagnostics log ---------- */
.diag-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.diag-head .card-title { margin-bottom: 0; }
.diag-tools { display: flex; align-items: center; gap: 8px; }
.filters { display: flex; gap: 4px; }
.chip {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
}
.chip.active { background: var(--surface-2); border-color: var(--border-strong); color: var(--text); }

.log {
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #0e0f11;
}
.log-entry { border-bottom: 1px solid var(--border); }
.log-entry:last-child { border-bottom: none; }
.log-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px 4px;
  font-size: 12px;
}
.log-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; background: var(--faint); }
.log-type { font-weight: 600; color: var(--text); }
.log-time { margin-left: auto; color: var(--faint); font-family: var(--mono); font-size: 11px; }
.log-body {
  margin: 0;
  padding: 0 12px 10px 27px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.55;
  color: var(--muted);
  white-space: pre-wrap;
  word-break: break-word;
}
.log-body:empty { display: none; }
.lvl-success .log-dot { background: var(--success); }
.lvl-warn .log-dot { background: var(--warn); }
.lvl-error .log-dot { background: var(--danger); }
.lvl-error .log-type { color: var(--danger); }

.log::-webkit-scrollbar, .preview-persona::-webkit-scrollbar { width: 8px; }
.log::-webkit-scrollbar-thumb, .preview-persona::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }
.log::-webkit-scrollbar-track, .preview-persona::-webkit-scrollbar-track { background: transparent; }

/* ---------- Home / character roster ---------- */
.home { max-width: 920px; margin: 0 auto; }
.home .view-head { text-align: center; margin-bottom: 24px; }
.roster {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.char-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}
.char-avatar {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  display: grid;
  place-items: center;
}
.char-avatar img { width: 100%; height: 100%; object-fit: cover; }
.char-avatar-empty { color: var(--faint); font-size: 11px; }
.char-name { font-weight: 600; font-size: 15px; }
.char-tags { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; }
.char-actions { display: flex; gap: 6px; margin-top: 6px; flex-wrap: wrap; justify-content: center; }
.char-new {
  border-style: dashed;
  color: var(--muted);
  cursor: pointer;
  justify-content: center;
  min-height: 190px;
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.15s, color 0.15s;
}
.char-new:hover { border-color: var(--border-strong); color: var(--text); }
.char-new-plus { font-size: 30px; color: var(--faint); line-height: 1; }

/* ---------- Editor top / actions ---------- */
.editor-top { margin-bottom: 8px; }
.back-btn {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  padding: 4px 0;
}
.back-btn:hover { color: var(--text); }
.editor-actions { display: flex; gap: 10px; margin-top: 4px; }
.editor-actions .btn { flex: 1; }
.editor-actions .btn-primary { flex: 2; padding: 13px; font-size: 15px; }

/* ---------- Device check modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.6);
}
.modal {
  width: 100%;
  max-width: 420px;
  max-height: calc(100vh - 40px);
  max-height: calc(100dvh - 40px);
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.5);
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-weight: 600; }
.modal-close {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
}
.modal-close:hover { color: var(--text); }
.modal-body { padding: 18px; display: flex; flex-direction: column; gap: 18px; }
.modal-foot { padding: 14px 18px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; }
.dev-section label { margin-bottom: 8px; }
.dev-video-wrap {
  margin-top: 10px;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}
.dev-video-wrap video { width: 100%; height: 100%; object-fit: cover; }
.meter {
  margin-top: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  overflow: hidden;
}
.meter-bar { height: 100%; width: 0%; background: var(--success); transition: width 0.06s linear; }
.dev-error { color: var(--danger); font-size: 13px; margin: 0; }
#spkTestBtn { margin-top: 10px; }

/* ---------- Business admin ---------- */
.user-switch {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
}
.user-switch select,
.compact-select {
  min-width: 130px;
  padding: 6px 28px 6px 9px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font: inherit;
}
.admin { width: 100%; }
.admin .editor-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.admin-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; }
.admin-mode-note { color: var(--warn); font-size: 12px; white-space: nowrap; }
.admin-stats { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; margin-bottom: 18px; }
.admin-stat { padding: 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.admin-stat-label { color: var(--muted); font-size: 12px; }
.admin-stat-value { margin-top: 5px; font-size: 24px; font-weight: 650; letter-spacing: 0; }
.admin-stat-unit { margin-left: 4px; color: var(--muted); font-size: 12px; font-weight: 400; }
.admin-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr); gap: 16px; align-items: start; }
.admin-panel { min-width: 0; padding: 20px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.usage-panel { margin-top: 16px; }
.panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; margin-bottom: 16px; }
.panel-head h2 { margin: 0; font-size: 16px; letter-spacing: 0; }
.panel-sub { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.admin-user-list { display: flex; flex-direction: column; gap: 8px; }
.admin-user-row { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--border); }
.admin-user-name { font-weight: 600; }
.admin-user-meta { margin-top: 2px; color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }
.admin-user-balance { min-width: 92px; text-align: right; }
.admin-user-balance strong { display: block; font-size: 15px; }
.admin-user-balance span { color: var(--muted); font-size: 11px; }
.admin-user-actions { display: flex; gap: 6px; }
.status-label { display: inline-flex; align-items: center; gap: 5px; color: var(--success); font-size: 11px; }
.status-label::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.status-label.disabled { color: var(--faint); }
.admin-form { margin-top: 12px; padding-top: 16px; border-top: 1px solid var(--border); }
.form-title { margin-bottom: 12px; font-weight: 600; }
.form-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 12px; }
.form-hint { min-height: 20px; margin: 8px 0 0; color: var(--muted); font-size: 12px; }
.form-hint.error { color: var(--danger); }
.role-share-row { margin: 14px 0; }
.role-assignment-users-wrap { min-height: 0; }
.multi-select { min-height: 158px; }
.usage-list { overflow-x: auto; }
.usage-row { display: grid; grid-template-columns: minmax(180px, 1.2fr) minmax(120px, 0.9fr) 110px 90px 90px 76px; gap: 12px; align-items: center; min-width: 830px; padding: 12px 0; border-top: 1px solid var(--border); }
.usage-row.header { padding-top: 0; border-top: 0; color: var(--muted); font-size: 12px; }
.usage-main strong { display: block; font-weight: 600; }
.usage-main span, .usage-cell-muted { color: var(--muted); font-size: 12px; }
.usage-vidu strong, .usage-vidu span { display: block; }
.usage-vidu strong { font-size: 13px; font-weight: 600; }
.usage-vidu span { margin-top: 2px; color: var(--muted); font-size: 11px; }
.usage-amount { text-align: right; font-weight: 600; }
.usage-status { color: var(--success); font-size: 12px; }
.usage-status.running { color: var(--warn); }
.usage-status.cancelled { color: var(--faint); }
.empty-admin { padding: 24px 0; color: var(--muted); text-align: center; }

/* ---------- Responsive ---------- */
@media (min-width: 1400px) {
  .app { max-width: 1320px; }
}

/* Wide-but-short viewport: lay the composer out horizontally so it fits without scrolling */
@media (min-width: 680px) and (max-height: 800px) {
  .composer { max-width: 880px; }
  .composer .view-head { margin-bottom: 14px; }
  .composer-card { flex-direction: row; align-items: flex-start; gap: 28px; }
  .composer-identity {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 220px;
    flex-shrink: 0;
  }
  .composer-fields {
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex: 1;
    min-width: 0;
  }
}

/* Live-room layout: video hero + right rail, fit in one viewport (no page scroll) */
@media (min-width: 640px) {
  #setupView {
    min-height: calc(100vh - 136px);
    min-height: calc(100dvh - 136px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  #callView {
    height: calc(100vh - 136px);
    height: calc(100dvh - 136px);
    min-height: 460px;
  }
  #callView .call-grid { height: 100%; align-items: stretch; }
  .stage {
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
  }
  .side {
    display: flex;
    flex-direction: column;
    gap: 16px;
    height: 100%;
    min-height: 0;
    overflow: hidden;
  }
  .side > .card { margin-bottom: 0; flex-shrink: 0; }
  .side > .diag {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
  }
  .side > .diag .log { max-height: none; flex: 1 1 auto; min-height: 0; }
}

/* Phones: stack into a single column */
@media (max-width: 639px) {
  .call-grid { grid-template-columns: 1fr; }
  .conn-panel { width: 280px; }
}

/* Phones: stack the control bar, compact paddings */
@media (max-width: 640px) {
  .controls { flex-wrap: wrap; }
  .ctrl-spacer { display: none; }
  .ctrl { flex: 1 1 auto; text-align: center; }
  .ctrl-danger { flex-basis: 100%; }
  .diag-tools { width: 100%; justify-content: space-between; }
}

@media (max-width: 560px) {
  .app { padding: 0 16px 32px; }
  .field-row { grid-template-columns: 1fr; }
  .topbar { margin-bottom: 20px; }
  .composer-card { padding: 20px; }
  .avatar-box { width: 112px; height: 112px; }
  .stage { padding: 10px; }
  .card { padding: 16px; }
  .view-head h1 { font-size: 21px; }
}

@media (max-width: 760px) {
  .admin-grid { grid-template-columns: 1fr; }
  .admin-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .admin-head { align-items: flex-start; flex-direction: column; }
  .admin-mode-note { white-space: normal; }
  .user-switch span { display: none; }
}

@media (min-width: 761px) and (max-width: 1180px) {
  .admin-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .topbar-right { gap: 6px; }
  .user-switch select { min-width: 92px; max-width: 112px; }
  .topbar { height: auto; min-height: 60px; padding-top: 10px; padding-bottom: 10px; align-items: flex-start; }
  .topbar-right { flex-wrap: wrap; justify-content: flex-end; }
  .admin-panel { padding: 16px; }
  .admin-user-row { grid-template-columns: minmax(0, 1fr) auto; }
  .admin-user-balance { grid-column: 1; grid-row: 2; text-align: left; }
  .admin-user-actions { grid-column: 2; grid-row: 2; }
}

/* ---------- Visual polish layer ---------- */
.eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.4px;
}

.home .view-head,
.admin .view-head {
  text-align: left;
}
.home-head,
.call-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}
.home-head .btn { flex-shrink: 0; }
.home-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.home-user-context,
.home-toolbar-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}
.home-user-context > div { display: grid; gap: 1px; }
.presence-dot {
  width: 9px;
  height: 9px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-weak);
}
.context-label {
  color: var(--muted);
  font-size: 11px;
}
.home-user-context strong { font-size: 13px; }
.balance-chip,
.home-toolbar-meta > span {
  padding: 4px 8px;
  border: 1px solid rgba(123, 214, 164, 0.28);
  border-radius: 999px;
  color: var(--accent);
  background: var(--accent-weak);
  font-family: var(--mono);
  font-size: 11px;
  white-space: nowrap;
}
.home-toolbar-meta { color: var(--muted); font-size: 12px; }
.home-toolbar-meta .link-btn { white-space: nowrap; }

.roster {
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 12px;
}
.char-card {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  grid-template-rows: auto auto auto;
  align-items: center;
  column-gap: 12px;
  row-gap: 7px;
  min-height: 154px;
  padding: 16px;
  text-align: left;
  border-radius: var(--radius-sm);
  transition: transform 0.16s ease-out, border-color 0.16s ease-out, background 0.16s ease-out;
}
.char-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
  background: #19211c;
}
.char-avatar {
  grid-row: 1 / span 2;
  width: 64px;
  height: 64px;
  border-color: rgba(123, 214, 164, 0.28);
}
.char-name { min-width: 0; font-size: 15px; overflow-wrap: anywhere; }
.char-tags { justify-content: flex-start; gap: 5px; }
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 2px 7px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  background: var(--surface-2);
  font-size: 11px;
}
.char-actions {
  grid-column: 1 / -1;
  justify-content: flex-start;
  width: 100%;
  margin-top: 4px;
}
.char-new {
  display: flex;
  min-height: 154px;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.char-new-plus { color: var(--accent); }

.admin-head { align-items: flex-end; }
.admin-mode-note {
  padding: 5px 8px;
  border: 1px solid rgba(224, 165, 58, 0.25);
  border-radius: 999px;
  background: rgba(224, 165, 58, 0.08);
}
.admin-stats { gap: 10px; }
.admin-stat,
.admin-panel {
  background: var(--surface);
  border-color: var(--border);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}
.admin-stat { position: relative; overflow: hidden; padding: 15px 16px; }
.admin-stat::after {
  content: "";
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-weak);
}
.admin-stat-value { font-family: var(--mono); font-size: 22px; }
.admin-user-row { padding: 14px 0; }
.admin-user-row:first-child { border-top: 0; }
.admin-user-name { font-size: 14px; }
.admin-user-balance strong { color: var(--accent); font-family: var(--mono); }
.usage-row { padding: 13px 0; }
.usage-row.header { font-size: 11px; text-transform: uppercase; letter-spacing: 0.4px; }
.usage-amount { color: var(--accent); font-family: var(--mono); }
.multi-select { background: var(--surface-2); }
.multi-select option { padding: 6px; }

.call-head {
  align-items: center;
  margin-bottom: 18px;
}
.call-head h1 { margin: 0; font-size: 20px; }
.call-head .view-sub { margin-top: 4px; }
.stage {
  padding: 12px;
  background: var(--surface);
  border-color: var(--border);
}
.video-container { border-color: var(--border-strong); }
.video-box { background: #080a09; }
.controls { margin-top: 10px; }
.ctrl,
.btn {
  transition: transform 0.14s ease-out, border-color 0.14s ease-out, background 0.14s ease-out, color 0.14s ease-out, opacity 0.14s ease-out;
}
.ctrl:active:not(:disabled),
.btn:active:not(:disabled),
.chip:active { transform: scale(0.97); }
.side > .card { border-color: var(--border); }
.card-title { letter-spacing: 0.8px; }
.conn-panel,
.modal { background: #18201b; }

input:focus,
select:focus,
textarea:focus,
.name-input:focus,
.select-chip:focus-within,
.persona-summary:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-weak);
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
  .btn:hover:not(:disabled),
  .ctrl:hover:not(:disabled) { transform: translateY(-1px); }
}

@media (max-width: 760px) {
  .home-head,
  .call-head { align-items: flex-start; flex-direction: column; gap: 12px; }
  .home-head .btn { width: 100%; }
  .home-toolbar { align-items: flex-start; flex-direction: column; }
  .home-toolbar-meta { width: 100%; justify-content: space-between; }
}

@media (max-width: 560px) {
  .app { padding-left: 14px; padding-right: 14px; }
  .brand-name { max-width: 150px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .home .view-head,
  .admin .view-head { margin-bottom: 18px; }
  .roster { grid-template-columns: 1fr; }
  .char-card { min-height: 142px; }
  .home-toolbar-meta { align-items: flex-start; flex-wrap: wrap; }
  .call-head .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .char-card:hover,
  .btn:hover:not(:disabled),
  .ctrl:hover:not(:disabled) { transform: none; }
}