/**
 * LiveOverlay Studio - Broadcast Production Design System
 * Dark Theme: #111827 (Main), #1F2937 (Panel), #6D5AE6 (Accent)
 */

:root {
  --bg-main: #0B0F17;
  --bg-panel: #111827;
  --bg-card: #151F30;
  --bg-card-hover: #1E2B42;
  --bg-input: #0B111D;
  --border: #202D42;
  --border-light: #2D3E5B;
  --accent: #6366F1;
  --accent-hover: #4F46E5;
  --accent-glow: rgba(99, 102, 241, 0.28);
  --success: #10B981;
  --success-glow: rgba(16, 185, 129, 0.25);
  --warning: #F59E0B;
  --warning-glow: rgba(245, 158, 11, 0.28);
  --danger: #EF4444;
  --danger-glow: rgba(239, 68, 68, 0.35);
  --text-main: #F9FAFB;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 14px 0 rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 12px 30px -3px rgba(0, 0, 0, 0.65);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.25;
}

h1 { font-size: 1.875rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

p { color: var(--text-muted); }
a { color: var(--accent); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--accent-hover); }

/* Navigation Bar */
.navbar {
  background-color: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.nav-brand-logo {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent) 0%, #A855F7 100%);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  box-shadow: 0 0 12px var(--accent-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.15s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
  color: #fff;
  background-color: var(--accent);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-live {
  background: rgba(239, 68, 68, 0.15);
  color: #F87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-live.on {
  background: var(--danger);
  color: #fff;
  box-shadow: 0 0 12px var(--danger-glow);
  animation: pulse-red 2s infinite;
}

.badge-standby {
  background: rgba(245, 158, 11, 0.15);
  color: #FBBF24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-pro {
  background: linear-gradient(135deg, #6366F1, #A855F7);
  color: #fff;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

@keyframes pulse-red {
  0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
  100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* Layout Container */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem;
  width: 100%;
}

.container-fluid {
  padding: 1rem 1.5rem;
  width: 100%;
}

/* Cards & Panels */
.panel {
  background-color: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  user-select: none;
}

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 0.85rem 1.6rem;
  font-size: 1.05rem;
}

.btn-primary {
  background-color: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background-color: var(--accent-hover);
  box-shadow: 0 0 14px var(--accent-glow);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border-color: var(--border);
}
.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.14);
}

.btn-success {
  background-color: var(--success);
  color: #fff;
}
.btn-success:hover {
  background-color: #16A34A;
  box-shadow: 0 0 14px var(--success-glow);
}

.btn-danger {
  background-color: var(--danger);
  color: #fff;
}
.btn-danger:hover {
  background-color: #DC2626;
  box-shadow: 0 0 14px var(--danger-glow);
}

.btn-warning {
  background-color: var(--warning);
  color: #111827;
}

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text-muted);
}
.btn-outline:hover {
  color: var(--text-main);
  border-color: var(--text-muted);
}

/* Form Controls */
.form-group {
  margin-bottom: 1.1rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.35rem;
}

.form-control, .form-select, textarea.form-control {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  padding: 0.6rem 0.85rem;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.15s;
}

.form-control:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Grid System */
.grid {
  display: grid;
  gap: 1.25rem;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* Control Room Specific Styles */
.monitor-deck {
  display: grid;
  grid-template-columns: 1fr 220px 1fr;
  gap: 1rem;
  align-items: stretch;
  margin-bottom: 1rem;
}

@media (max-width: 1100px) {
  .monitor-deck {
    grid-template-columns: 1fr;
  }
}

/* Broadcast Monitor Chassis & Bezel */
.broadcast-monitor-frame {
  background: #0B101B;
  border: 1px solid #1E2B3E;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55);
  display: flex;
  flex-direction: column;
}

.monitor-top-bezel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.85rem;
  background: #111827;
  border-bottom: 1px solid #1E2B3E;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  user-select: none;
}

.bezel-tally-preview {
  color: #FBBF24;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.bezel-tally-live {
  color: #F87171;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.screen-box {
  background: #000;
  position: relative;
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex: 1;
}

.screen-box.live-box {
  box-shadow: inset 0 0 20px rgba(239, 68, 68, 0.2);
}

.screen-box.preview-box {
  box-shadow: inset 0 0 20px rgba(245, 158, 11, 0.15);
}

.screen-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 10;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.screen-tag-live {
  background: var(--danger);
  color: #fff;
  box-shadow: 0 0 10px var(--danger-glow);
}

.screen-tag-preview {
  background: var(--warning);
  color: #111827;
}

.screen-preview-render {
  width: 100%;
  height: 100%;
  position: relative;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: flex-end;
  padding: 0;
}

.screen-grid-pattern {
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 20px 20px;
  background-color: #070B12;
}

/* Broadcast Center Switcher Console */
.switcher-console-card {
  background: linear-gradient(180deg, #151F30 0%, #0D1422 100%);
  border: 1px solid #233148;
  border-radius: var(--radius-md);
  padding: 0.85rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  align-items: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  position: relative;
  justify-content: space-between;
}

.switcher-console-title {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-align: center;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  width: 100%;
}

.btn-take-master {
  width: 100%;
  padding: 1.1rem 0.5rem;
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  background: linear-gradient(135deg, #EF4444 0%, #B91C1C 100%);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 16px var(--danger-glow);
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.btn-take-master:hover {
  background: linear-gradient(135deg, #F87171 0%, #DC2626 100%);
  box-shadow: 0 6px 24px rgba(239, 68, 68, 0.55);
  transform: translateY(-1px);
}

.btn-take-master:active {
  transform: translateY(1px);
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.4);
}

.btn-take-sub {
  font-size: 0.62rem;
  font-weight: 700;
  opacity: 0.85;
  letter-spacing: 0.04em;
}

.btn-cut-master {
  width: 100%;
  padding: 0.65rem 0.5rem;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  background: #1F2937;
  color: #F9FAFB;
  border: 1px solid #374151;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.btn-cut-master:hover {
  background: #374151;
  border-color: #4B5563;
  color: #FFF;
}

/* Speed Pills */
.speed-pill-group {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.25rem;
  width: 100%;
}

.speed-pill-btn {
  padding: 0.3rem 0.2rem;
  font-size: 0.68rem;
  font-weight: 700;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
}

.speed-pill-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #FFF;
}

.speed-pill-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #FFF;
  box-shadow: 0 0 8px var(--accent-glow);
}

/* FTB Blackout */
.btn-ftb-blackout {
  width: 100%;
  padding: 0.45rem 0.5rem;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  background: rgba(239, 68, 68, 0.1);
  border: 1px dashed rgba(239, 68, 68, 0.5);
  color: #F87171;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-ftb-blackout:hover {
  background: #EF4444;
  color: #FFF;
  border-style: solid;
}

/* Legacy Switcher Column Support */
.switcher-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  justify-content: center;
}
.btn-take {
  width: 100%;
  padding: 1.1rem 0.5rem;
  font-size: 1.25rem;
  font-weight: 900;
  background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
  color: #fff;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 14px var(--danger-glow);
  letter-spacing: 0.05em;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Toast System */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text-main);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 280px;
  animation: slide-toast 0.25s ease forwards;
}

.toast.toast-success { border-left: 4px solid var(--success); }
.toast.toast-error { border-left: 4px solid var(--danger); }
.toast.toast-info { border-left: 4px solid var(--accent); }

@keyframes slide-toast {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-overlay.open {
  display: flex;
}

.modal-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 580px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modal-pop 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modal-pop {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  background: rgba(0, 0, 0, 0.15);
}

/* Tabs */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
}

.tab-btn:hover {
  color: var(--text-main);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Safe Area Indicator */
.safe-area-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.safe-area-action {
  position: absolute;
  top: 3.5%;
  bottom: 3.5%;
  left: 3.5%;
  right: 3.5%;
  border: 1px dashed rgba(255, 255, 255, 0.15);
}
.safe-area-title {
  position: absolute;
  top: 5%;
  bottom: 5%;
  left: 5%;
  right: 5%;
  border: 1px dashed rgba(109, 90, 230, 0.3);
}

/* Custom Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.table th {
  padding: 0.75rem 1rem;
  background-color: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
}

.table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-main);
  font-size: 0.9rem;
}

.table tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Slide Cards for Lyrics */
.lyric-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
}

.lyric-card:hover {
  border-color: var(--accent);
  background: #2D3748;
}

.lyric-card.active-live {
  border-color: var(--danger);
  background: rgba(239, 68, 68, 0.12);
  box-shadow: 0 0 10px var(--danger-glow);
}

.lyric-card.active-preview {
  border-color: var(--warning);
  background: rgba(245, 158, 11, 0.12);
}

.lyric-tag {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.3rem;
}

/* Interactive Draggable & Resizable Monitor Elements */
.draggable-monitor-element {
  touch-action: none;
  cursor: grab;
  position: absolute;
  box-sizing: border-box;
  transition: filter 0.15s ease;
}

.draggable-monitor-element:hover {
  cursor: grab;
  outline: 1.5px dashed rgba(245, 158, 11, 0.9);
  outline-offset: 2px;
}

.draggable-monitor-element.is-live-element:hover {
  outline: 1.5px dashed rgba(239, 68, 68, 0.9);
}

.draggable-monitor-element:active {
  cursor: grabbing;
  outline: 2px solid var(--accent);
}

/* Minimalist Floating Glass Pill Header */
.monitor-element-header {
  position: absolute;
  top: -24px;
  left: 0;
  display: flex;
  align-items: center;
  gap: 5px;
  pointer-events: auto;
  z-index: 100;
  user-select: none;
  background: rgba(11, 15, 25, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 2px 6px;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.65);
  white-space: nowrap;
}

.monitor-element-badge {
  color: #E2E8F0;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 5px;
}

.monitor-element-btn-hide {
  background: rgba(239, 68, 68, 0.2);
  color: #F87171;
  border: 1px solid rgba(239, 68, 68, 0.5);
  font-size: 9px;
  font-weight: 800;
  padding: 1px 5px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.monitor-element-btn-hide:hover {
  background: #EF4444;
  color: #FFFFFF;
}

/* Sleek Corner & Edge Resize Handles */
.resize-handle {
  position: absolute;
  background: #F59E0B;
  border: 1px solid #FFF;
  border-radius: 2px;
  z-index: 90;
  touch-action: none;
  opacity: 0;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.draggable-monitor-element:hover .resize-handle {
  opacity: 1;
}

.draggable-monitor-element.is-live-element .resize-handle {
  background: #EF4444;
}

.resize-handle-e {
  top: 50%;
  right: -5px;
  width: 6px;
  height: 24px;
  transform: translateY(-50%);
  cursor: ew-resize;
  border-radius: 3px;
}

.resize-handle-e:hover {
  transform: translateY(-50%) scale(1.3);
}

.resize-handle-s {
  bottom: -5px;
  left: 50%;
  width: 24px;
  height: 6px;
  transform: translateX(-50%);
  cursor: ns-resize;
  border-radius: 3px;
}

.resize-handle-s:hover {
  transform: translateX(-50%) scale(1.3);
}

.resize-handle-se {
  bottom: -5px;
  right: -5px;
  width: 10px;
  height: 10px;
  cursor: nwse-resize;
  border-radius: 2px;
}

.resize-handle-se:hover {
  transform: scale(1.3);
}

/* =========================================================================
   DOWNSTREAM KEYERS (DSK 1 - 5) MASTER BROADCAST RACK
   ========================================================================= */
.dsk-master-rack {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.1rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.dsk-rack-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 0.5rem;
}

.dsk-rack-title {
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dsk-rack-channels {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
}

@media (max-width: 1300px) {
  .dsk-rack-channels {
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  }
}

.dsk-channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  transition: all 0.15s ease;
  position: relative;
}

.dsk-channel-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
}

.dsk-channel-card.is-live {
  border-color: rgba(239, 68, 68, 0.75);
  box-shadow: 0 0 14px rgba(239, 68, 68, 0.25);
  background: rgba(239, 68, 68, 0.07);
}

.dsk-channel-card.is-prev {
  border-color: rgba(245, 158, 11, 0.65);
  background: rgba(245, 158, 11, 0.05);
}

.dsk-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.4rem;
}

.dsk-idx-badge {
  font-size: 0.65rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  padding: 2px 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

.dsk-channel-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.dsk-telemetry {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  white-space: nowrap;
}

.dsk-switch-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
}

.dsk-switch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.38rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: #0E1624;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.dsk-switch-btn:hover {
  background: #1A2436;
  color: #FFF;
}

/* PST Active (Standby / Preview) */
.dsk-switch-btn.active-pst {
  background: rgba(245, 158, 11, 0.22);
  border-color: #F59E0B;
  color: #FBBF24;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.3);
}

/* AIR Active (Live on Stream) */
.dsk-switch-btn.active-air {
  background: #EF4444;
  border-color: #DC2626;
  color: #FFFFFF;
  box-shadow: 0 0 12px var(--danger-glow);
  animation: pulse-red 2s infinite;
}

.dsk-led-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.dsk-tools-row {
  display: flex;
  gap: 0.3rem;
}

.dsk-tool-btn {
  flex: 1;
  padding: 0.25rem 0.35rem;
  font-size: 0.68rem;
  font-weight: 600;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.dsk-tool-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-main);
  border-color: var(--accent);
}

/* Broadcast Preset Library Cards */
.preset-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
  border-left: 4px solid var(--accent);
}

.preset-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
}

.preset-title {
  color: #FFF;
  font-size: 0.92rem;
  font-weight: 700;
}

.preset-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.preset-meta {
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Custom Broadcast Select */
.broadcast-select {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-main);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.15s ease;
}

.broadcast-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
  outline: none;
}

/* Backwards compatibility */
.layer-manager-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  transition: all 0.15s ease;
}
.layer-manager-card.is-active-live {
  border-color: rgba(239, 68, 68, 0.6);
  background: rgba(239, 68, 68, 0.08);
}
.layer-manager-card.is-active-preview {
  border-color: rgba(245, 158, 11, 0.5);
}