:root {
  --bg-primary: #0d0d0d;
  --bg-secondary: #131313;
  --bg-card: #1a1a1a;
  --bg-hover: #222;
  --text-primary: #f5f5f7;
  --text-secondary: #86868b;
  --text-tertiary: #6e6e73;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.15);
  --green: #30d158;
  --red: #ff453a;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-full: 999px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: 0.25s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Header ── */
.header {
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

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

.header-logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #fff 0%, #888 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-right { display: flex; align-items: center; gap: 12px; }

.search-input {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  padding: 8px 16px 8px 36px;
  color: var(--text-primary);
  font-size: 13px;
  width: 200px;
  outline: none;
  transition: var(--transition);
  font-family: var(--font);
}

.search-input:focus {
  border-color: rgba(255, 255, 255, 0.15);
  width: 260px;
  background: var(--bg-hover);
}

.search-input::placeholder { color: var(--text-tertiary); }

.search-wrap { position: relative; }

.search-wrap .icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  color: var(--text-tertiary);
  pointer-events: none;
}

/* ── Categories ── */
.categories {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.categories:empty { display: none; }

.category-pill {
  padding: 5px 14px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: transparent;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
  font-weight: 400;
  line-height: 1.4;
}

.category-pill:hover {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}

.category-pill.active {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  font-weight: 500;
}

/* ── Container ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 24px 40px;
}

/* ── Channel Grid ── */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 12px;
}

.channel-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 14px 8px 10px;
  border-radius: var(--radius);
  transition: var(--transition);
  background: transparent;
  border: none;
  font-family: var(--font);
  -webkit-tap-highlight-color: transparent;
}

.channel-card:hover {
  background: rgba(255, 255, 255, 0.03);
}

.channel-avatar {
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
  transition: transform var(--transition), box-shadow var(--transition);
  will-change: transform;
  user-select: none;
}

.channel-card:hover .channel-avatar {
  transform: scale(1.06);
}

.channel-card.active .channel-avatar {
  box-shadow: 0 0 0 3px var(--accent), 0 0 20px rgba(0, 212, 255, 0.25);
}

.channel-card.active {
  background: rgba(0, 212, 255, 0.04);
}

.channel-name {
  font-size: 11px;
  text-align: center;
  line-height: 1.3;
  color: var(--text-secondary);
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: var(--transition);
}

.channel-card.active .channel-name {
  color: var(--accent);
  font-weight: 500;
}

/* ── Player ── */
#player-container {
  opacity: 0;
  pointer-events: none;
  max-height: 0;
  overflow: hidden;
  transition: opacity 0.4s ease, max-height 0.4s ease, margin 0.4s ease;
  margin: 0;
  border-radius: var(--radius);
}

#player-container.visible {
  opacity: 1;
  pointer-events: auto;
  max-height: 700px;
  margin-bottom: 28px;
}

#player-container video {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  background: #000;
  border-radius: var(--radius) var(--radius) 0 0;
  object-fit: contain;
}

.player-info {
  padding: 12px 16px;
  background: var(--bg-card);
  border-radius: 0 0 var(--radius) var(--radius);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}

.player-info .name {
  font-weight: 500;
  color: var(--text-primary);
}

.player-info .status {
  margin-left: auto;
  font-size: 11px;
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 6px;
}

.player-info .status::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-dot 1.5s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.player-info .status.offline {
  color: var(--red);
}

.player-info .status.offline::before {
  background: var(--red);
  animation: none;
}

.close-player {
  margin-left: auto;
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 6px;
  transition: var(--transition);
  font-family: var(--font);
  flex-shrink: 0;
}

.close-player:hover {
  background: rgba(255, 69, 58, 0.2);
  color: var(--red);
}

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-tertiary);
}

.empty-state .icon {
  font-size: 40px;
  margin-bottom: 12px;
  opacity: 0.5;
}

.empty-state p {
  font-size: 14px;
  letter-spacing: 0.3px;
}

/* ── Admin: Stats ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.stat-card .value {
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.stat-card .label {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ── Admin: Chart ── */
.chart-wrap {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 24px;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.chart-wrap h3 {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.chart-wrap canvas {
  width: 100% !important;
  height: 200px !important;
}

/* ── Admin: Tables ── */
.section-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
  letter-spacing: -0.2px;
}

.table-wrap {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.04);
  margin-bottom: 24px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  padding: 10px 16px;
  text-align: left;
  font-size: 10px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(255, 255, 255, 0.02);
}

tbody td {
  padding: 10px 16px;
  font-size: 13px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 500;
}

.status-badge::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
}

.status-badge.online { color: var(--green); }
.status-badge.online::before { background: var(--green); }
.status-badge.offline { color: var(--red); }
.status-badge.offline::before { background: var(--red); }

/* ── Admin: Toggle ── */
.toggle-btn {
  width: 38px;
  height: 20px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: background 0.25s ease;
  position: relative;
  flex-shrink: 0;
}

.toggle-btn.on {
  background: var(--green);
}

.toggle-btn.off {
  background: #333;
}

.toggle-btn::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.25s ease;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.toggle-btn.on::after {
  transform: translateX(18px);
}

/* ── Admin: Action buttons ── */
.action-btn {
  padding: 5px 12px;
  border-radius: 6px;
  border: none;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}

.action-btn.start {
  background: rgba(48, 209, 88, 0.15);
  color: var(--green);
}

.action-btn.start:hover {
  background: rgba(48, 209, 88, 0.25);
}

.action-btn.stop {
  background: rgba(255, 69, 58, 0.15);
  color: var(--red);
}

.action-btn.stop:hover {
  background: rgba(255, 69, 58, 0.25);
}

.action-btn.delete {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-tertiary);
}

.action-btn.delete:hover {
  background: rgba(255, 69, 58, 0.15);
  color: var(--red);
}

.actions-cell {
  display: flex;
  gap: 6px;
  align-items: center;
}

/* ── Admin: Viewers table ── */
.viewer-ip {
  font-family: 'SF Mono', 'Menlo', monospace;
  font-size: 12px;
  color: var(--text-secondary);
}

.viewer-time {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* ── Player page specific ── */
.player-page .container {
  max-width: 900px;
}

.player-page .channel-grid {
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 8px;
}

.player-page .channel-avatar {
  width: 54px;
  height: 54px;
  font-size: 17px;
}

.player-page .channel-name {
  font-size: 10px;
  max-width: 70px;
}

.player-controls {
  display: flex;
  gap: 8px;
  padding: 10px 0;
  align-items: center;
  flex-wrap: wrap;
}

.player-controls select {
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 12px;
  cursor: pointer;
  outline: none;
  font-family: var(--font);
}

.player-controls .fs-btn {
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}

.player-controls .fs-btn:hover {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}

/* ── Status badges for relays ── */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 4px;
  flex-shrink: 0;
}
.status-dot.active { background: var(--green); box-shadow: 0 0 6px rgba(48,209,88,0.4); }
.status-dot.failed { background: var(--red); box-shadow: 0 0 6px rgba(255,69,58,0.4); }
.status-dot.disabled { background: #555; }
.status-dot.inactive { background: #555; }
.status-dot.unknown { background: #888; }

.status-label { font-size: 11px; font-weight: 500; }
.status-label.active { color: var(--green); }
.status-label.failed { color: var(--red); }
.status-label.disabled { color: #666; }
.status-label.inactive { color: #666; }

/* ── Log viewer terminal ── */
.log-page .container { max-width: 1100px; }

.log-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.log-header select {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.08);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  cursor: pointer;
  font-family: var(--font);
  min-width: 180px;
}

.log-header select option { background: var(--bg-primary); }

.log-status-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
}

.terminal {
  background: #0a0a0a;
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 12px 0;
  font-family: 'SF Mono', 'Menlo', 'Consolas', monospace;
  font-size: 12px;
  line-height: 1.6;
  overflow-x: auto;
  max-height: 70vh;
  overflow-y: auto;
}

.terminal .line {
  padding: 0 16px;
  white-space: pre;
  color: #ccc;
  min-height: 1.4em;
}

.terminal .line:hover {
  background: rgba(255,255,255,0.03);
}

.terminal .line.error { color: #ff6b6b; }
.terminal .line.warn { color: #ffd93d; }
.terminal .line.info { color: #6bcbff; }

.terminal .line .src-tag {
  display: inline-block;
  padding: 0 5px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 500;
  margin-right: 6px;
  font-family: var(--font);
}

.src-tag.srs { background: rgba(0,212,255,0.15); color: #00d4ff; }
.src-tag.hls-stats { background: rgba(48,209,88,0.15); color: #30d158; }
.src-tag.nginx { background: rgba(255,204,0,0.15); color: #ffcc00; }
.src-tag.relay { background: rgba(160,100,255,0.15); color: #a064ff; }

.terminal-empty {
  text-align: center;
  padding: 40px;
  color: #555;
  font-family: var(--font);
  font-size: 13px;
}

.terminal-loading {
  text-align: center;
  padding: 40px;
  color: #555;
  font-family: var(--font);
}

/* ── Log tabs (admin) ── */
.log-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.log-tab {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.08);
  background: transparent;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}

.log-tab:hover { border-color: rgba(255,255,255,0.2); color: var(--text-primary); }
.log-tab.active { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 500; }

.log-tab .dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-right: 5px;
  vertical-align: middle;
}

/* ── Refresh indicator ── */
.refresh-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-dot 1.5s ease-in-out infinite;
  margin-right: 6px;
  vertical-align: middle;
}

.refresh-dot.paused { animation: none; background: #555; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .header { padding: 12px 16px; }
  .header-logo { font-size: 16px; }
  .search-input { width: 140px; }
  .search-input:focus { width: 180px; }
  .categories { padding: 12px 16px 4px; }
  .container { padding: 8px 16px 24px; }
  .channel-grid { grid-template-columns: repeat(auto-fill, minmax(75px, 1fr)); gap: 6px; }
  .channel-card { padding: 10px 4px 8px; }
  .channel-avatar { width: 52px; height: 52px; font-size: 16px; }
  .channel-name { font-size: 10px; max-width: 70px; }
  .stats-grid { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); }
  .stat-card .value { font-size: 22px; }
}

@media (max-width: 480px) {
  .header { padding: 10px 12px; }
  .header-logo { font-size: 14px; }
  .search-input { width: 100px; font-size: 12px; }
  .search-input:focus { width: 140px; }
  .channel-grid { grid-template-columns: repeat(4, 1fr); gap: 4px; }
  .channel-card { padding: 8px 2px 6px; }
  .channel-avatar { width: 46px; height: 46px; font-size: 14px; }
  .channel-name { font-size: 9px; max-width: 60px; }
  .player-info { flex-direction: column; align-items: flex-start; gap: 4px; }
  .player-info .status { margin-left: 0; }
}