/* Shared Stylesheet - StreamPulse Multi-Page IPTV Web Application */
:root {
  --bg-dark: #090d16;
  --bg-panel: #111827;
  --bg-card: #1f2937;
  --bg-card-hover: #374151;
  --accent: #38bdf8;
  --accent-hover: #0284c7;
  --accent-glow: rgba(56, 189, 248, 0.2);
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --border: #334155;
  --radius: 10px;
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Navbar */
.navbar {
  background-color: rgba(17, 24, 39, 0.92);
  backdrop-filter: blur(12px);
  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;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand-badge {
  background: linear-gradient(135deg, #38bdf8, #818cf8);
  color: #090d16;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.15rem 0.45rem;
  border-radius: 5px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.nav-link:hover {
  color: var(--text-primary);
  background-color: var(--bg-card);
}

.nav-link.active {
  color: var(--accent);
  background-color: var(--accent-glow);
  border: 1px solid rgba(56, 189, 248, 0.35);
}

.nav-stats {
  font-size: 0.8rem;
  color: var(--text-secondary);
  background-color: var(--bg-card);
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  border: 1px solid var(--border);
}

/* Common Layout Containers */
.container {
  max-width: 1360px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem;
  flex: 1;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-size: 1.65rem;
  font-weight: 700;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-top: 0.25rem;
}

/* Buttons & Inputs */
input, select, textarea {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 0.6rem 0.85rem;
  border-radius: 8px;
  font-size: 0.9rem;
  outline: none;
  transition: border 0.15s ease;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}

.btn {
  background-color: var(--accent);
  color: #090d16;
  font-weight: 700;
  border: none;
  padding: 0.6rem 1.1rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
  transition: all 0.15s ease;
}

.btn:hover {
  background-color: var(--accent-hover);
  color: #fff;
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
}

.btn-danger {
  background-color: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.35);
}

.btn-danger:hover {
  background-color: var(--danger);
  color: #fff;
}

.btn-sm {
  padding: 0.38rem 0.7rem;
  font-size: 0.78rem;
}

/* Grid & Channel Cards */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  background-color: var(--bg-panel);
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  align-items: center;
}

.toolbar input[type="text"] {
  flex: 1;
  min-width: 220px;
}

.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.channel-card {
  background-color: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: transform 0.15s ease, border-color 0.15s ease;
  position: relative;
}

.channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.card-top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.card-logo {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  object-fit: contain;
  background-color: var(--bg-dark);
  padding: 4px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.card-meta {
  overflow: hidden;
  flex: 1;
}

.card-title {
  font-weight: 700;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-group {
  font-size: 0.75rem;
  color: var(--accent);
  margin-top: 0.15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-source {
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
}

.card-actions .btn {
  flex: 1;
  justify-content: center;
}

.fav-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.15s;
}

.fav-btn.active {
  color: #fbbf24;
  border-color: #fbbf24;
  background: rgba(251, 191, 36, 0.12);
}

/* Player Page Layout (index.html) */
.player-workspace {
  display: flex;
  flex: 1;
  height: calc(100vh - 61px);
  overflow: hidden;
}

.video-column {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: #000;
  overflow-y: auto;
}

.video-wrapper {
  flex: 1;
  background-color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  min-height: 320px;
}

video {
  width: 100%;
  height: 100%;
  max-height: calc(100vh - 150px);
  outline: none;
}

.player-bar {
  background-color: var(--bg-panel);
  border-top: 1px solid var(--border);
  padding: 0.85rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.now-playing-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.now-playing-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.now-playing-sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.player-controls-extra {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  background-color: var(--bg-card);
  color: var(--accent);
  border: 1px solid var(--border);
}

.sidebar-column {
  width: 370px;
  background-color: var(--bg-panel);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.sidebar-header {
  padding: 0.85rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.sidebar-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.side-channel-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  background-color: var(--bg-dark);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s;
}

.side-channel-item:hover {
  background-color: var(--bg-card);
}

.side-channel-item.active {
  border-color: var(--accent);
  background-color: var(--accent-glow);
}

/* Playlists Page Cards */
.playlist-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 1.5rem;
}

.panel-card {
  background-color: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.panel-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.form-group label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.playlist-item {
  background-color: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.65rem;
}

.playlist-item-info {
  overflow: hidden;
  flex: 1;
}

.playlist-item-name {
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.playlist-item-url {
  font-size: 0.78rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 0.2rem;
}

.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-secondary);
  background-color: var(--bg-panel);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

@media (max-width: 900px) {
  .player-workspace {
    flex-direction: column;
    height: auto;
  }
  .video-wrapper {
    height: 42vh;
  }
  .sidebar-column {
    width: 100%;
    height: 55vh;
    border-left: none;
    border-top: 1px solid var(--border);
  }
  .playlist-grid {
    grid-template-columns: 1fr;
  }
}