*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  box-shadow: none;
}

:root {
  --md-primary: #1a73e8;
  --md-primary-container: #d3e3fd;
  --md-on-primary: #ffffff;
  --md-on-primary-container: #041e49;
  --md-secondary-container: #e8eaed;
  --md-surface: #ffffff;
  --md-surface-dim: #f8f9fa;
  --md-surface-container: #f1f3f4;
  --md-surface-container-high: #e8eaed;
  --md-surface-container-highest: #dfe1e5;
  --md-on-surface: #202124;
  --md-on-surface-variant: #5f6368;
  --md-error: #b3261e;
  --md-error-container: #fce8e6;
  --md-on-error-container: #410e0b;
  --md-success-container: #e6f4ea;
  --md-on-success-container: #137333;
  --md-warning-container: #fef7e0;
  --md-on-warning-container: #b06000;
  --md-tertiary-container: #e8def8;
  --md-on-tertiary-container: #4a4458;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 28px;
}

[data-theme='dark'] {
  --md-primary: #a8c7fa;
  --md-primary-container: #084298;
  --md-on-primary: #062e6f;
  --md-on-primary-container: #d3e3fd;
  --md-secondary-container: #3c4043;
  --md-surface: #1e1f20;
  --md-surface-dim: #131314;
  --md-surface-container: #28292a;
  --md-surface-container-high: #333537;
  --md-surface-container-highest: #3e4042;
  --md-on-surface: #e3e2e6;
  --md-on-surface-variant: #c4c7c5;
  --md-error: #f2b8b5;
  --md-error-container: #601410;
  --md-on-error-container: #f9dedc;
  --md-success-container: #1b3a2d;
  --md-on-success-container: #6dd58c;
  --md-warning-container: #3d2f00;
  --md-on-warning-container: #ffb951;
  --md-tertiary-container: #4a4458;
  --md-on-tertiary-container: #e8def8;
}

[data-theme='dark'] .btn.primary:hover:not(:disabled) {
  background: #8ab4f8;
}

body {
  font-family: 'Source Sans 3', sans-serif;
  background: var(--md-surface-dim);
  color: var(--md-on-surface);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.material-icons-round {
  font-family: 'Material Icons Round';
  font-weight: normal;
  font-style: normal;
  font-size: 20px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

.container {
  max-width: 520px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

header {
  margin-bottom: 1.25rem;
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.logo-mark .material-icons-round {
  font-size: 28px;
}

.logo-img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

header h1 {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--md-on-surface);
  line-height: 1;
}

.panel {
  background: var(--md-surface);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.panel-heading {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.3rem;
  color: var(--md-on-surface);
}

.panel-heading .material-icons-round {
  color: var(--md-primary);
  font-size: 22px;
}

.panel h2 {
  font-size: 1.15rem;
  font-weight: 600;
}

.panel-desc {
  color: var(--md-on-surface-variant);
  font-size: 0.82rem;
  font-weight: 400;
  line-height: 1.45;
  margin-top: 0;
  margin-bottom: 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
  outline: none;
  border-radius: var(--radius-xl);
  padding: 0.7rem 1.5rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, opacity 0.15s;
}

.btn:focus,
.btn:focus-visible {
  outline: none;
}

.btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.btn.primary {
  background: var(--md-primary);
  color: var(--md-on-primary);
}

.btn.primary:hover:not(:disabled) {
  background: #1765cc;
}

.btn.tonal {
  background: var(--md-secondary-container);
  color: var(--md-on-surface);
}

.btn.tonal:hover:not(:disabled) {
  background: var(--md-surface-container-highest);
}

.btn.danger {
  background: var(--md-error-container);
  color: var(--md-on-error-container);
  margin-top: 0.75rem;
}

.info-card .btn.danger {
  margin-top: 0;
}

.btn.danger:hover:not(:disabled) {
  background: #f2b8b5;
  color: var(--md-on-error-container);
}

[data-theme='dark'] .btn.danger:hover:not(:disabled) {
  background: #8c1d18;
  color: #f9dedc;
}

.actions-center {
  display: flex;
  justify-content: center;
  margin-top: 0.25rem;
}

.choice-btn {
  justify-content: center;
  font-size: 1rem;
  padding: 1rem;
}

#start-choice {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.back-btn {
  align-self: flex-start;
  margin-bottom: 0.25rem;
  padding: 0.35rem 0.6rem;
  font-size: 0.85rem;
  color: var(--md-on-surface-variant);
}

.hidden {
  display: none !important;
}

.link-box {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.link-box input {
  flex: 1;
  background: var(--md-surface-container);
  border: none;
  outline: none;
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.85rem;
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: 0.85rem;
}

.link-box input:focus {
  background: var(--md-surface-container-high);
}

.hint {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
  font-size: 0.8rem !important;
  color: var(--md-on-surface-variant) !important;
  margin-bottom: 1rem !important;
}

.hint-icon {
  font-size: 16px !important;
  flex-shrink: 0;
  margin-top: 1px;
}

.label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--md-on-surface-variant);
  margin-bottom: 0.5rem !important;
}

.label-icon {
  font-size: 16px !important;
}

.status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0;
}

.status.connecting {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.status.connected {
  background: var(--md-success-container);
  color: var(--md-on-success-container);
}

.status.disconnected {
  background: var(--md-warning-container);
  color: var(--md-on-warning-container);
}

.spin {
  animation: spin 1.2s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.success-banner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--md-success-container);
  color: var(--md-on-success-container);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.info-card {
  background: var(--md-surface-container);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 0.75rem;
}

.session-id {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--md-primary);
  letter-spacing: 0.01em;
  word-break: break-word;
  margin-bottom: 0;
}

.session-tools-actions {
  display: flex;
  gap: 0.5rem;
}

.session-tool-btn {
  flex: 1;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.85rem 0.5rem;
  font-size: 0.82rem;
  font-weight: 500;
  margin-top: 0;
  min-width: 0;
  text-align: center;
}

.session-tool-btn .material-icons-round {
  font-size: 22px;
}

.session-tool-btn.btn.tonal.active {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.display-name {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--md-on-surface);
}

.team-leader-id {
  font-size: 1rem;
  font-weight: 600;
  color: var(--md-on-surface);
}

#teamleader-controls {
  margin-bottom: 1.25rem;
}

.voice-mode-controls {
  margin-bottom: 1.25rem;
}

.ptt-section {
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
}

.clients-section {
  margin-top: 1.25rem;
}

.clients-section h3 {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--md-on-surface);
}

.clients-section h3 .material-icons-round {
  font-size: 20px;
  color: var(--md-on-surface-variant);
}

#client-list {
  list-style: none;
}

.client-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 0.85rem;
  background: var(--md-surface-container);
  border-radius: var(--radius-md);
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  overflow: hidden;
}

.client-level-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: transparent;
  pointer-events: none;
}

.client-level-fill {
  height: 100%;
  width: 0%;
  background: var(--md-success-container);
  transition: width 0.07s linear;
  border-radius: 0 2px 0 0;
}

.client-item.has-level .client-level-fill {
  background: var(--md-success-container);
}

[data-theme='dark'] .client-level-fill {
  background: rgba(109, 213, 140, 0.55);
}

.client-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  flex-shrink: 0;
}

.client-avatar .material-icons-round {
  font-size: 20px;
}

.client-name {
  flex: 1;
  font-weight: 500;
  min-width: 0;
}

.client-name small {
  display: block;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--md-on-surface-variant);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-xl);
  white-space: nowrap;
}

.badge .material-icons-round {
  font-size: 14px;
}

.badge.leader {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.badge.offline {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
}

.badge.muted {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
}

.badge.talking {
  background: var(--md-success-container);
  color: var(--md-on-success-container);
}

.client-item.offline {
  opacity: 0.58;
}

.client-item.offline .client-avatar {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
}

.client-item.offline .client-name,
.client-item.offline .client-name small {
  color: var(--md-on-surface-variant);
}

.client-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
  flex-shrink: 0;
}

.btn.client-terminate-btn {
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  margin-top: 0;
  white-space: nowrap;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.modal-card {
  position: relative;
  z-index: 1;
  width: min(100%, 420px);
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background: var(--md-surface-container);
  color: var(--md-on-surface);
}

.modal-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.modal-desc {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}

.modal-hint {
  margin: 0 0 1rem;
  font-size: 0.82rem;
  color: var(--md-on-surface-variant);
  line-height: 1.45;
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.modal-actions .btn {
  width: 100%;
  margin-top: 0;
}

.error-banner {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  background: var(--md-error-container);
  color: var(--md-on-error-container);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  margin-top: 1rem;
}

a.btn {
  text-decoration: none;
  display: inline-flex;
}

.form-group {
  margin-bottom: 1.25rem;
}

.text-input {
  width: 100%;
  background: var(--md-surface-container);
  border: none;
  outline: none;
  border-radius: var(--radius-sm);
  padding: 0.85rem 0.9rem;
  color: var(--md-on-surface);
  font-family: inherit;
  font-size: 1rem;
  transition: background 0.15s;
}

.text-input::placeholder {
  color: var(--md-on-surface-variant);
  opacity: 0.7;
}

.text-input:focus {
  background: var(--md-surface-container-high);
}

.full-width {
  width: 100%;
  margin-top: 0.75rem;
}

.mode-toggle {
  display: flex;
  gap: 0.5rem;
}

.mode-option {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.85rem 0.5rem;
  background: var(--md-surface-container);
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--md-on-surface-variant);
  transition: background 0.15s, color 0.15s;
  text-align: center;
}

.mode-option .material-icons-round {
  font-size: 22px;
}

.mode-option:has(input:checked) {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

.voice-mode-controls.room-muted .mode-option {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.mode-option input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.voice-section {
  position: relative;
  margin-bottom: 1.25rem;
  padding: 1rem;
  background: var(--md-surface-container);
  border-radius: var(--radius-md);
  overflow: hidden;
  --voice-level: 0%;
}

.voice-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--voice-level);
  background: rgba(255, 255, 255, 0.14);
  border-radius: inherit;
  z-index: 0;
  pointer-events: none;
  transition: width 0.05s linear;
}

.voice-section.speaking::before {
  background: rgba(52, 168, 83, 0.22);
}

[data-theme='dark'] .voice-section::before {
  background: rgba(255, 255, 255, 0.1);
}

[data-theme='dark'] .voice-section.speaking::before {
  background: rgba(109, 213, 140, 0.18);
}

.voice-section > * {
  position: relative;
  z-index: 1;
}

.ptt-btn {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 1.5rem 1rem;
  border: none;
  outline: none;
  border-radius: var(--radius-lg);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  touch-action: none;
  overflow: hidden;
  --voice-level: 0%;
  transition: color 0.12s;
}

.ptt-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--voice-level);
  background: rgba(255, 255, 255, 0.24);
  border-radius: inherit;
  z-index: 0;
  pointer-events: none;
  transition: width 0.05s linear;
}

.ptt-btn > * {
  position: relative;
  z-index: 1;
}

.ptt-btn:focus,
.ptt-btn:focus-visible {
  outline: none;
}

.ptt-btn .ptt-icon {
  font-size: 32px;
}

.ptt-btn.active {
  background: var(--md-primary);
  color: var(--md-on-primary);
}

.ptt-btn .ptt-muted-label {
  display: none;
}

.ptt-btn.room-muted {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

.ptt-btn.room-muted .ptt-icon {
  content: 'mic_off';
}

.ptt-btn.room-muted .ptt-label {
  display: none;
}

.ptt-btn.room-muted .ptt-muted-label {
  display: inline;
}

.ptt-btn.active::before {
  background: rgba(255, 255, 255, 0.32);
}

[data-theme='dark'] .ptt-btn::before {
  background: rgba(255, 255, 255, 0.14);
}

[data-theme='dark'] .ptt-btn.active::before {
  background: rgba(255, 255, 255, 0.22);
}

#vad-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
}

.vad-indicator {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--md-on-surface);
  flex: 1;
}


.self-mute-btn {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.self-mute-btn.active {
  background: var(--md-error-container);
  color: var(--md-on-error-container);
}

.vad-dot {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
  transition: background 0.15s, color 0.15s;
}

.vad-dot .material-icons-round {
  font-size: 22px;
}

.vad-dot.active {
  background: var(--md-success-container);
  color: var(--md-on-success-container);
}

.voice-error {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0;
  margin-bottom: 1.25rem;
  font-size: 0.85rem;
  color: var(--md-on-error-container);
  background: var(--md-error-container);
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
}

.voice-error .material-icons-round {
  font-size: 18px;
  flex-shrink: 0;
}

#link-result {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  position: relative;
}

#link-result::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--md-surface-container-highest);
}