/* === Reset & Base === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Theme */
  --bg-deep: #0a0a0f;
  --bg-surface: rgba(15, 15, 25, 0.9);
  --bg-gradient-from: #0d0d1a;
  --bg-gradient-to: #1a1a2e;

  /* Accent */
  --accent-indigo: #6366f1;
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-red: #ef4444;
  --accent-blue: #3b82f6;

  /* Text */
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(99, 102, 241, 0.2);

  /* Syntax highlighting */
  --hl-header: #64748b;
  --hl-metadata: #c084fc;
  --hl-sequence: #f59e0b;
  --hl-segment-info: #60a5fa;
  --hl-segment-uri: #94a3b8;
  --hl-scte: #fb7185;
  --hl-encrypt: #34d399;
  --hl-datetime: #fbbf24;
  --hl-byterange: #f97316;
  --hl-unknown: #cbd5e1;

  /* Layout */
  --top-bar-height: 56px;
  --config-panel-width: 400px;

  /* Fonts */
  --font-ui: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
}

html, body {
  height: 100%;
  font-family: var(--font-ui);
  background: var(--bg-deep);
  color: var(--text-primary);
  overflow: hidden;
}

/* === Top Bar === */
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--top-bar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: linear-gradient(135deg, var(--bg-gradient-from), var(--bg-gradient-to));
  border-bottom: 1px solid var(--border-accent);
  z-index: 100;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mk-logo {
  height: 24px;
  width: auto;
}

.top-bar-title {
  font-weight: 600;
  font-size: 15px;
  color: var(--text-primary);
}

.top-bar-right {
  display: flex;
  gap: 10px;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 13px;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all 0.15s ease;
  background: none;
}

.btn-icon {
  font-size: 14px;
}

.btn-config {
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.25);
  color: #a5b4fc;
}
.btn-config:hover {
  background: rgba(99, 102, 241, 0.22);
}

.btn-add {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.25);
  color: #6ee7b7;
}
.btn-add:hover {
  background: rgba(16, 185, 129, 0.22);
}

.btn-load-all {
  background: rgba(251, 191, 36, 0.12);
  border-color: rgba(251, 191, 36, 0.25);
  color: #fbbf24;
}
.btn-load-all:hover {
  background: rgba(251, 191, 36, 0.22);
}

/* === Player Grid === */
.player-grid {
  position: fixed;
  top: var(--top-bar-height);
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px;
  overflow-y: auto;
  display: grid;
  gap: 10px;
  align-content: start;
  grid-template-columns: 1fr;
}

.player-grid.cols-2 { grid-template-columns: 1fr 1fr; }
.player-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }

/* === Empty State === */
.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 64px;
  opacity: 0.12;
  margin-bottom: 16px;
}

.empty-state-text {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.empty-state-sub {
  font-size: 13px;
}

/* === Player Cell === */
.player-cell {
  background: var(--bg-surface);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
}

.player-cell-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-subtle);
}

.player-cell-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.player-cell-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.format-toggle {
  display: flex;
  gap: 0;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.format-btn {
  padding: 3px 10px;
  font-size: 11px;
  font-family: var(--font-ui);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.format-btn.active {
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
}

.badge {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-live {
  background: rgba(239, 68, 68, 0.9);
  color: #fff;
}

.badge-vod {
  background: rgba(59, 130, 246, 0.9);
  color: #fff;
}

.btn-close-cell {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.15s ease;
}

.btn-close-cell:hover {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
}

/* Video container */
.player-video-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}

.player-error-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.85);
  color: #f87171;
  font-size: 13px;
  padding: 20px;
  text-align: center;
  z-index: 5;
}

/* === Playlist Poller === */
.poller {
  border-top: 1px solid var(--border-subtle);
}

.poller-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  transition: background 0.15s ease;
}

.poller-header:hover {
  background: rgba(255, 255, 255, 0.02);
}

.poller-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.poller-chevron {
  color: var(--accent-emerald);
  font-size: 11px;
  transition: transform 0.2s ease;
}

.poller.collapsed .poller-chevron {
  transform: rotate(-90deg);
  color: var(--text-muted);
}

.poller-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
}

.poller-status {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  background: rgba(16, 185, 129, 0.12);
  color: #6ee7b7;
}

.poller.collapsed .poller-status {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
}

.poller-target {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.poller-body {
  max-height: 200px;
  overflow-y: auto;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  background: rgba(0, 0, 0, 0.3);
  border-top: 1px solid var(--border-subtle);
}

.poller.collapsed .poller-body {
  display: none;
}

.poller-body::-webkit-scrollbar {
  width: 6px;
}

.poller-body::-webkit-scrollbar-track {
  background: transparent;
}

.poller-body::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

.poller-error {
  color: #f87171;
  font-style: italic;
}

/* Syntax highlighting */
.hl-header { color: var(--hl-header); }
.hl-metadata { color: var(--hl-metadata); }
.hl-sequence { color: var(--hl-sequence); }
.hl-segment-info { color: var(--hl-segment-info); }
.hl-segment-uri { color: var(--hl-segment-uri); }
.hl-scte { color: var(--hl-scte); }
.hl-encrypt { color: var(--hl-encrypt); }
.hl-datetime { color: var(--hl-datetime); }
.hl-byterange { color: var(--hl-byterange); }
.hl-unknown { color: var(--hl-unknown); }

/* === Config Panel === */
.config-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.config-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.config-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: var(--config-panel-width);
  background: linear-gradient(180deg, #0f0f1e, #0d0d1a);
  border-left: 1px solid var(--border-accent);
  z-index: 201;
  transform: translateX(100%);
  transition: transform 0.25s ease;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.config-panel.open {
  transform: translateX(0);
}

.config-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.config-title {
  font-size: 16px;
  font-weight: 600;
}

.config-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
}

.config-close:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.config-section {
  padding: 16px 20px;
}

.config-section-border {
  border-top: 1px solid var(--border-subtle);
}

.config-section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

/* Channel list items */
.channel-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  margin-bottom: 6px;
}

.channel-item-info {
  min-width: 0;
}

.channel-item-name {
  font-size: 13px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.channel-item-formats {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
}

.channel-item-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.btn-sm {
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 10px;
  border: none;
  cursor: pointer;
  font-family: var(--font-ui);
  transition: all 0.15s ease;
}

.btn-load {
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
}
.btn-load:hover {
  background: rgba(99, 102, 241, 0.3);
}

.btn-delete {
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
}
.btn-delete:hover {
  background: rgba(239, 68, 68, 0.2);
}

/* Form elements */
.form-group {
  margin-bottom: 10px;
}

.form-label {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.form-input {
  width: 100%;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-ui);
  outline: none;
  transition: border-color 0.15s ease;
}

.form-input:focus {
  border-color: var(--accent-indigo);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.type-toggle {
  display: flex;
  gap: 0;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.type-btn {
  flex: 1;
  padding: 6px;
  text-align: center;
  font-size: 12px;
  font-family: var(--font-ui);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.type-btn.active {
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
}

.form-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.btn-play {
  flex: 1;
  padding: 8px;
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
  justify-content: center;
}
.btn-play:hover {
  background: rgba(16, 185, 129, 0.25);
}

.btn-save {
  flex: 1;
  padding: 8px;
  background: rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.25);
  color: #a5b4fc;
  justify-content: center;
}
.btn-save:hover {
  background: rgba(99, 102, 241, 0.22);
}

.btn-import, .btn-export {
  flex: 1;
  padding: 6px;
  background: rgba(255, 255, 255, 0.02);
  border-color: var(--border-subtle);
  color: var(--text-secondary);
  justify-content: center;
  font-size: 12px;
}
.btn-import:hover, .btn-export:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* === Toast === */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 10px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-primary);
  animation: toast-in 0.2s ease;
  max-width: 350px;
}

.toast-error {
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === Live badge pulse === */
@keyframes pulse-live {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.badge-live::before {
  content: '● ';
  animation: pulse-live 1.5s infinite;
}

/* === Scrollbars === */
.player-grid::-webkit-scrollbar,
.config-panel::-webkit-scrollbar {
  width: 6px;
}

.player-grid::-webkit-scrollbar-track,
.config-panel::-webkit-scrollbar-track {
  background: transparent;
}

.player-grid::-webkit-scrollbar-thumb,
.config-panel::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
}

/* === Disabled format button === */
.format-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}