/*
 * StageConnect Dark Theme
 * Matches Flutter AppTheme — dark surfaces, stage-inspired accent colors
 * Professional live-production aesthetic
 */

/* ========== CSS Custom Properties ========== */
:root {
  /* Brand */
  --sc-gold: #FFAB00;
  --sc-amber: #FF8F00;
  --sc-red: #FF1744;
  --sc-green: #00E676;
  --sc-cyan: #00BCD4;
  --sc-purple: #9C27B0;

  /* Primary (amber/gold) */
  --md-primary: #FF8F00;
  --md-on-primary: #000000;
  --md-primary-container: rgba(255, 143, 0, 0.12);
  --md-on-primary-container: #FFAB00;

  /* Secondary */
  --md-secondary: #9E9EAE;
  --md-on-secondary: #000000;
  --md-secondary-container: rgba(158, 158, 174, 0.12);
  --md-on-secondary-container: #F0F0F5;

  /* Tertiary */
  --md-tertiary: #00BCD4;
  --md-on-tertiary: #000000;
  --md-tertiary-container: rgba(0, 188, 212, 0.12);
  --md-on-tertiary-container: #00BCD4;

  /* Error */
  --md-error: #FF1744;
  --md-on-error: #FFFFFF;
  --md-error-container: rgba(255, 23, 68, 0.12);
  --md-on-error-container: #FF1744;

  /* Surface */
  --md-surface: #0A0A0F;
  --md-on-surface: #F0F0F5;
  --md-surface-variant: #2E2E3A;
  --md-on-surface-variant: #9E9EAE;
  --md-surface-container: #1A1A22;
  --md-surface-container-low: #121218;
  --md-surface-container-high: #24242E;

  /* Outline */
  --md-outline: #6E6E7E;
  --md-outline-variant: #2E2E3A;

  /* Inverse */
  --md-inverse-surface: #F0F0F5;
  --md-inverse-on-surface: #0A0A0F;
  --md-inverse-primary: #FF8F00;

  /* Elevation (dark theme - subtle light glows) */
  --md-elevation-1: 0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --md-elevation-2: 0 2px 6px rgba(0,0,0,0.5), 0 1px 4px rgba(0,0,0,0.3);
  --md-elevation-3: 0 4px 12px rgba(0,0,0,0.6), 0 2px 6px rgba(0,0,0,0.4);

  /* Shape */
  --md-shape-xs: 4px;
  --md-shape-sm: 8px;
  --md-shape-md: 12px;
  --md-shape-lg: 16px;
  --md-shape-xl: 28px;
  --md-shape-full: 9999px;

  /* Motion */
  --md-motion-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-motion-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-motion-duration-short: 200ms;
  --md-motion-duration-medium: 300ms;
  --md-motion-duration-long: 500ms;
}

/* ========== Global Reset & Typography ========== */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Roboto', system-ui, -apple-system, sans-serif;
  background: var(--md-surface);
  color: var(--md-on-surface);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Material 3 Type Scale */
.md-display-large { font-size: 3.5625rem; font-weight: 400; line-height: 4rem; letter-spacing: -0.016em; }
.md-display-medium { font-size: 2.8125rem; font-weight: 400; line-height: 3.25rem; }
.md-headline-large { font-size: 2rem; font-weight: 400; line-height: 2.5rem; }
.md-headline-medium { font-size: 1.75rem; font-weight: 400; line-height: 2.25rem; }
.md-headline-small { font-size: 1.5rem; font-weight: 400; line-height: 2rem; }
.md-title-large { font-size: 1.375rem; font-weight: 400; line-height: 1.75rem; }
.md-title-medium { font-size: 1rem; font-weight: 500; line-height: 1.5rem; letter-spacing: 0.009em; }
.md-title-small { font-size: 0.875rem; font-weight: 500; line-height: 1.25rem; letter-spacing: 0.006em; }
.md-body-large { font-size: 1rem; font-weight: 400; line-height: 1.5rem; letter-spacing: 0.031em; }
.md-body-medium { font-size: 0.875rem; font-weight: 400; line-height: 1.25rem; letter-spacing: 0.016em; }
.md-body-small { font-size: 0.75rem; font-weight: 400; line-height: 1rem; letter-spacing: 0.025em; }
.md-label-large { font-size: 0.875rem; font-weight: 500; line-height: 1.25rem; letter-spacing: 0.006em; }
.md-label-medium { font-size: 0.75rem; font-weight: 500; line-height: 1rem; letter-spacing: 0.031em; }
.md-label-small { font-size: 0.6875rem; font-weight: 500; line-height: 1rem; letter-spacing: 0.031em; }


/* ========== App Bar ========== */
.md-app-bar {
  display: flex;
  align-items: center;
  height: 64px;
  padding: 0 16px;
  background: var(--md-surface-container-low);
  color: var(--md-on-surface);
  border-bottom: 1px solid var(--md-outline-variant);
  position: sticky;
  top: 0;
  z-index: 100;
  gap: 8px;
}

.md-app-bar-leading {
  display: flex;
  align-items: center;
}

.md-app-bar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.md-app-bar-logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #FFAB00, #FF8F00);
  display: flex;
  align-items: center;
  justify-content: center;
}

.md-app-bar-logo-icon svg {
  width: 18px;
  height: 18px;
  fill: #000;
}

.md-app-bar-title {
  flex: 1;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.75rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--md-on-surface);
}

.md-app-bar-title small {
  display: block;
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  font-weight: 400;
  line-height: 1rem;
}

.md-app-bar-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}


/* ========== Icon Button ========== */
.md-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: var(--md-shape-full);
  background: transparent;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  transition: background var(--md-motion-duration-short) var(--md-motion-standard);
  position: relative;
  overflow: hidden;
  font-size: 1.5rem;
  -webkit-tap-highlight-color: transparent;
}

.md-icon-btn:hover {
  background: rgba(240, 240, 245, 0.08);
}

.md-icon-btn:active {
  background: rgba(240, 240, 245, 0.12);
}

.md-icon-btn:disabled {
  color: rgba(240, 240, 245, 0.38);
  cursor: not-allowed;
}

.md-icon-btn svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}


/* ========== Card ========== */
.md-card {
  background: var(--md-surface-container);
  border-radius: var(--md-shape-md);
  border: 1px solid var(--md-outline-variant);
  padding: 16px;
  margin-bottom: 8px;
  transition: box-shadow var(--md-motion-duration-short) var(--md-motion-standard),
              background var(--md-motion-duration-short) var(--md-motion-standard),
              border-color var(--md-motion-duration-short) var(--md-motion-standard);
  cursor: pointer;
}

.md-card:hover {
  background: var(--md-surface-container-high);
  border-color: rgba(255, 143, 0, 0.3);
  box-shadow: 0 0 12px rgba(255, 143, 0, 0.08);
}

.md-card:active {
  background: var(--md-surface-container-high);
}

.md-card-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.md-card-content {
  flex: 1;
  min-width: 0;
}

.md-card-title {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5rem;
  color: var(--md-on-surface);
}

.md-card-subtitle {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  line-height: 1.25rem;
}

.md-card-trailing {
  display: flex;
  align-items: center;
  color: var(--md-on-surface-variant);
}

.md-card-trailing svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}


/* ========== Circle Avatar ========== */
.md-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.md-avatar.green {
  background: var(--sc-green);
  color: #000;
}
.md-avatar.amber {
  background: var(--sc-amber);
  color: #000;
}
.md-avatar.red {
  background: var(--sc-red);
  color: #fff;
}
.md-avatar.cyan {
  background: var(--sc-cyan);
  color: #000;
}
.md-avatar.purple {
  background: var(--sc-purple);
  color: #fff;
}
.md-avatar.muted {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
}

/* Legacy color names (keep for compatibility) */
.md-avatar.orange { background: var(--sc-amber); color: #000; }
.md-avatar.blue { background: var(--sc-amber); color: #000; }
.md-avatar.grey { background: var(--md-surface-container-high); color: var(--md-on-surface); }

.md-avatar-large {
  width: 56px;
  height: 56px;
  font-size: 1.375rem;
}


/* ========== Floating Action Buttons ========== */
.md-fab-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 16px;
  z-index: 50;
}

.md-fab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  min-width: 56px;
  border: none;
  border-radius: var(--md-shape-lg);
  background: linear-gradient(135deg, #FFAB00, #FF8F00);
  color: #000;
  box-shadow: 0 4px 16px rgba(255, 143, 0, 0.3);
  cursor: pointer;
  transition: box-shadow var(--md-motion-duration-short) var(--md-motion-standard),
              transform var(--md-motion-duration-short) var(--md-motion-standard);
  padding: 0 20px;
  gap: 12px;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  -webkit-tap-highlight-color: transparent;
}

.md-fab:hover {
  box-shadow: 0 6px 24px rgba(255, 143, 0, 0.4);
  transform: translateY(-1px);
}

.md-fab:active {
  box-shadow: 0 2px 8px rgba(255, 143, 0, 0.3);
  transform: translateY(0);
}

.md-fab svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
  flex-shrink: 0;
}

.md-fab-small {
  height: 44px;
  min-width: 44px;
  border-radius: var(--md-shape-md);
  padding: 0 10px;
  background: var(--md-surface-container-high);
  color: var(--sc-amber);
  box-shadow: var(--md-elevation-2);
  border: 1px solid var(--md-outline-variant);
}

.md-fab-small:hover {
  box-shadow: var(--md-elevation-3);
  background: rgba(255, 143, 0, 0.12);
}


/* ========== ListTile ========== */
.md-list-tile {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  margin: 0 0 6px 0;
  min-height: 56px;
  border-radius: var(--md-shape-md);
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  transition: background var(--md-motion-duration-short) var(--md-motion-standard);
}

.md-list-tile:hover {
  background: var(--md-surface-container-high);
}

.md-list-tile-content {
  flex: 1;
  min-width: 0;
}

.md-list-tile-title {
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.25rem;
  color: var(--md-on-surface);
}

.md-list-tile-subtitle {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  line-height: 1rem;
}

.md-list-tile-trailing {
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
}

/* Self member highlight */
.md-list-tile.self {
  background: rgba(255, 143, 0, 0.06);
  border-color: rgba(255, 143, 0, 0.15);
}


/* ========== Divider ========== */
.md-divider {
  height: 1px;
  background: var(--md-outline-variant);
  margin: 0;
}


/* ========== Section Header ========== */
.md-section-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 16px 10px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
}

.md-section-header::before {
  content: '';
  display: block;
  width: 3px;
  height: 14px;
  background: var(--sc-amber);
  border-radius: 2px;
}


/* ========== Views ========== */
.view {
  display: none;
}

.view.active {
  display: block;
}

main {
  padding-bottom: 100px; /* space for FABs */
}

.channel-list-container {
  max-width: 600px;
  margin: 0 auto;
}


/* ========== Empty State ========== */
.md-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 64px 32px;
  gap: 16px;
  text-align: center;
}

.md-empty-state svg {
  width: 64px;
  height: 64px;
  fill: var(--md-on-surface-variant);
  opacity: 0.3;
}

.md-empty-state-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--md-on-surface);
}

.md-empty-state-subtitle {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
}

.md-empty-state-actions {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}


/* ========== Buttons ========== */
.md-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 24px;
  border: none;
  border-radius: var(--md-shape-full);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.006em;
  cursor: pointer;
  transition: box-shadow var(--md-motion-duration-short) var(--md-motion-standard),
              background var(--md-motion-duration-short) var(--md-motion-standard);
  gap: 8px;
  font-family: inherit;
  -webkit-tap-highlight-color: transparent;
}

.md-btn-filled {
  background: var(--md-primary);
  color: var(--md-on-primary);
  font-weight: 700;
}

.md-btn-filled:hover {
  box-shadow: 0 2px 8px rgba(255, 143, 0, 0.3);
}

.md-btn-filled:active {
  box-shadow: none;
}

.md-btn-outlined {
  background: transparent;
  color: var(--md-primary);
  border: 1px solid var(--md-outline-variant);
}

.md-btn-outlined:hover {
  background: rgba(255, 143, 0, 0.08);
  border-color: var(--md-primary);
}

.md-btn-text {
  background: transparent;
  color: var(--md-on-surface-variant);
  padding: 0 12px;
}

.md-btn-text:hover {
  background: rgba(240, 240, 245, 0.08);
}

.md-btn-danger {
  background: var(--sc-red);
  color: #fff;
  font-weight: 700;
}

.md-btn-danger:hover {
  box-shadow: 0 2px 8px rgba(255, 23, 68, 0.3);
}

.md-btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  box-shadow: none;
}

.md-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}


/* ========== Dialog ========== */
.md-dialog {
  border: none;
  border-radius: var(--md-shape-xl);
  padding: 24px;
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
  max-width: 400px;
  width: calc(100% - 48px);
  min-width: 280px;
  border: 1px solid var(--md-outline-variant);
}

.md-dialog::backdrop {
  background: rgba(0, 0, 0, 0.6);
}

.md-dialog-title {
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 2rem;
  margin-bottom: 16px;
  color: var(--md-on-surface);
}

.md-dialog-content {
  margin-bottom: 24px;
}

.md-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}


/* ========== Text Field ========== */
.md-text-field {
  position: relative;
  margin-bottom: 16px;
}

.md-text-field input {
  width: 100%;
  height: 56px;
  padding: 20px 16px 8px;
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-sm);
  background: var(--md-surface-container);
  font-size: 1rem;
  font-family: inherit;
  color: var(--md-on-surface);
  transition: border-color var(--md-motion-duration-short) var(--md-motion-standard);
  outline: none;
}

.md-text-field input:focus {
  border-color: var(--md-primary);
  border-width: 2px;
  padding: 19px 15px 7px;
}

.md-text-field label {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  color: var(--md-on-surface-variant);
  pointer-events: none;
  transition: all var(--md-motion-duration-short) var(--md-motion-standard);
  background: var(--md-surface-container-high);
  padding: 0 4px;
}

.md-text-field input:focus + label,
.md-text-field input:not(:placeholder-shown) + label {
  top: 0;
  font-size: 0.75rem;
  color: var(--md-primary);
}


/* ========== Navigation Drawer (Admin) ========== */
.md-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--md-motion-duration-medium) var(--md-motion-standard),
              visibility var(--md-motion-duration-medium) var(--md-motion-standard);
}

.md-drawer-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.md-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 360px;
  max-width: calc(100vw - 56px);
  height: 100%;
  background: var(--md-surface-container-low);
  z-index: 201;
  transform: translateX(100%);
  transition: transform var(--md-motion-duration-medium) var(--md-motion-emphasized);
  overflow-y: auto;
  border-left: 1px solid var(--md-outline-variant);
}

.md-drawer.open {
  transform: translateX(0);
}

.md-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px 16px 24px;
  min-height: 64px;
  border-bottom: 1px solid var(--md-outline-variant);
}

.md-drawer-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--md-on-surface);
}

.md-drawer-section {
  padding: 0 16px 16px;
}

.md-drawer-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  padding: 16px 0 8px;
}

.md-drawer-section-title::before {
  content: '';
  display: block;
  width: 3px;
  height: 14px;
  background: var(--sc-amber);
  border-radius: 2px;
}

/* Admin stat cards */
.md-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.md-stat-card {
  background: var(--md-surface-container);
  border-radius: var(--md-shape-md);
  border: 1px solid var(--md-outline-variant);
  padding: 16px;
  text-align: center;
}

.md-stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--sc-amber);
  line-height: 2rem;
}

.md-stat-label {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  margin-top: 4px;
  font-weight: 500;
  letter-spacing: 0.05em;
}


/* ========== PTT Button ========== */
.ptt-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 32px 16px;
  position: relative;
}

.ptt-circle {
  width: 200px;
  height: 200px;
  border-radius: var(--md-shape-full);
  border: none;
  background: var(--sc-green);
  color: white;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 0.15s var(--md-motion-standard),
              box-shadow 0.3s var(--md-motion-standard),
              background 0.15s var(--md-motion-standard);
  box-shadow: 0 0 20px rgba(0, 230, 118, 0.25),
              0 4px 16px rgba(0, 0, 0, 0.3);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  touch-action: none;
  position: relative;
}

.ptt-circle svg {
  width: 80px;
  height: 80px;
  fill: white;
}

.ptt-circle:hover {
  transform: scale(1.03);
  box-shadow: 0 0 30px rgba(0, 230, 118, 0.35),
              0 6px 24px rgba(0, 0, 0, 0.3);
}

.ptt-circle:active,
.ptt-circle.transmitting {
  background: var(--sc-red);
  transform: scale(0.92);
  box-shadow: 0 0 30px rgba(255, 23, 68, 0.4),
              0 2px 12px rgba(0, 0, 0, 0.3);
}

.ptt-circle.transmitting {
  animation: ptt-glow 1.2s ease-in-out infinite;
}

@keyframes ptt-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(255, 23, 68, 0.3), 0 0 4px rgba(255, 23, 68, 0.5); }
  50% { box-shadow: 0 0 40px rgba(255, 23, 68, 0.5), 0 0 8px rgba(255, 23, 68, 0.7); }
}

/* LIVE badge on PTT when transmitting */
.ptt-circle.transmitting::after {
  content: 'LIVE';
  position: absolute;
  bottom: 40px;
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: white;
  background: rgba(0, 0, 0, 0.26);
  padding: 3px 10px;
  border-radius: 8px;
}

.ptt-circle:disabled {
  background: var(--md-outline);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.ptt-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  letter-spacing: 0.03em;
}

.ptt-label.transmitting {
  color: var(--sc-red);
}


/* ========== Speaking Indicator ========== */
.md-speaking-indicator {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  margin: 16px;
  border: 1.5px solid rgba(0, 188, 212, 0.3);
  border-radius: var(--md-shape-lg);
  background: rgba(0, 188, 212, 0.08);
}

.md-speaking-indicator.visible {
  display: flex;
}

.md-speaking-bars {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 20px;
}

.md-speaking-bars span {
  display: block;
  width: 4px;
  background: var(--sc-cyan);
  border-radius: 2px;
  animation: speak-bar 0.8s ease-in-out infinite;
}

.md-speaking-bars span:nth-child(1) { height: 8px; animation-delay: 0s; }
.md-speaking-bars span:nth-child(2) { height: 14px; animation-delay: 0.15s; }
.md-speaking-bars span:nth-child(3) { height: 10px; animation-delay: 0.3s; }
.md-speaking-bars span:nth-child(4) { height: 16px; animation-delay: 0.1s; }

@keyframes speak-bar {
  0%, 100% { transform: scaleY(0.4); }
  50% { transform: scaleY(1); }
}

.md-speaking-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--sc-cyan);
}

.md-speaking-icon {
  color: var(--sc-cyan);
}

.md-speaking-icon svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}


/* ========== Connection Status Bar ========== */
.md-connection-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 16px;
  font-size: 0.75rem;
  font-weight: 500;
}

.md-connection-bar.connected {
  color: var(--sc-green);
}

.md-connection-bar.disconnected {
  color: var(--sc-red);
}

.md-connection-bar svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}


/* ========== Member List ========== */
.member-list-section {
  flex: 1;
  overflow-y: auto;
  padding: 0 16px;
}

/* Online dot */
.md-online-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--md-shape-full);
  background: var(--sc-green);
  box-shadow: 0 0 4px rgba(0, 230, 118, 0.4);
  flex-shrink: 0;
}

/* YOU badge */
.md-you-badge {
  display: inline-block;
  font-size: 0.5625rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--sc-amber);
  background: rgba(255, 143, 0, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 8px;
}


/* ========== Active Channel Layout ========== */
.active-channel-body {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 64px);
  background: linear-gradient(180deg, #0A0A0F 0%, #0D0D14 50%, #0A0A0F 100%);
}

.active-channel-body .member-list-section {
  flex: 1;
  overflow-y: auto;
}


/* ========== Snackbar ========== */
.md-snackbar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  padding: 14px 24px;
  border-radius: var(--md-shape-md);
  border: 1px solid var(--md-outline-variant);
  font-size: 0.875rem;
  box-shadow: var(--md-elevation-3);
  z-index: 300;
  transition: transform var(--md-motion-duration-medium) var(--md-motion-emphasized);
  max-width: calc(100% - 48px);
}

.md-snackbar.show {
  transform: translateX(-50%) translateY(0);
}


/* ========== Badge ========== */
.md-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--md-shape-full);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.md-badge-connected {
  background: rgba(0, 230, 118, 0.15);
  color: var(--sc-green);
}

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

.md-badge-lock {
  background: rgba(255, 143, 0, 0.15);
  color: var(--sc-amber);
}


/* ========== Lock Icon ========== */
.lock-icon {
  color: var(--sc-amber);
}

.lock-icon svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}


/* ========== Volume Slider ========== */
.md-volume-control {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
}

.md-volume-control svg {
  fill: var(--md-on-surface-variant);
}

.md-volume-control input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--md-outline-variant);
  border-radius: 2px;
  outline: none;
}

.md-volume-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: var(--md-shape-full);
  background: var(--sc-amber);
  cursor: pointer;
}

.md-volume-control input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: var(--md-shape-full);
  background: var(--sc-amber);
  cursor: pointer;
  border: none;
}


/* ========== Device List (Admin) ========== */
.md-device-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--md-outline-variant);
}

.md-device-item:last-child {
  border-bottom: none;
}

.md-device-info {
  flex: 1;
  min-width: 0;
}

.md-device-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--md-on-surface);
}

.md-device-details {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
  line-height: 1.2;
  margin-top: 2px;
}


/* ========== Hidden Canvas (VU Meters) ========== */
.hidden-meters {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}


/* ========== Scrollbar ========== */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--md-outline-variant);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--md-outline);
}


/* ========== Responsive ========== */
@media (max-width: 600px) {
  .md-app-bar {
    height: 56px;
    padding: 0 8px;
  }

  .md-drawer {
    width: 100%;
    max-width: 100%;
  }

  .ptt-circle {
    width: 160px;
    height: 160px;
  }

  .ptt-circle svg {
    width: 56px;
    height: 56px;
  }

  .ptt-circle.transmitting::after {
    bottom: 30px;
  }

  .md-stat-grid {
    grid-template-columns: 1fr 1fr;
  }

  .md-dialog {
    max-width: calc(100% - 32px);
  }

  .md-fab-container {
    bottom: 16px;
    right: 16px;
  }
}