/* ============================================
   AventrixRadioCore - Main CSS
   Dark theme, mobile-first, no framework
   ============================================ */

:root {
  --bg-primary: #0f0f14;
  --bg-secondary: #16161f;
  --bg-card: #1c1c27;
  --bg-card-hover: #22222f;
  --bg-input: #1a1a24;
  --border: #2a2a3a;
  --border-light: #33334a;
  --text-primary: #e8e8f0;
  --text-secondary: #8888aa;
  --text-muted: #55556a;
  --accent: #6c63ff;
  --accent-hover: #8078ff;
  --accent-dim: rgba(108, 99, 255, 0.15);
  --danger: #ff4d6d;
  --success: #00c896;
  --warning: #ffb800;
  --player-height: 76px;
  --header-height: 112px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.3);
  --transition: 0.2s ease;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}
body.has-player { padding-bottom: calc(var(--player-height) + 16px); }
[x-cloak] { display: none !important; }
img { display: block; max-width: 100%; }
button, select, input { font-family: inherit; }
a { color: inherit; text-decoration: none; }

/* ============================================
   HEADER
   ============================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15,15,20,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  max-width: 1400px;
  margin: 0 auto;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  color: var(--text-primary);
  white-space: nowrap;
  flex-shrink: 0;
}
.logo strong { color: var(--accent); }
.logo img { width: 32px; height: 32px; }

/* Search */
.search-box {
  flex: 1;
  position: relative;
  max-width: 480px;
}
.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 18px;
  height: 18px;
  pointer-events: none;
}
.search-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 8px 16px 8px 40px;
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.search-input::placeholder { color: var(--text-muted); }

/* Header actions */
.header-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

.btn-login {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 7px 14px;
  color: var(--text-primary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn-login:hover { background: var(--bg-card-hover); border-color: var(--border-light); }
.btn-login.large { font-size: 1rem; padding: 12px 24px; }

.user-menu {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 10px 4px 4px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: background var(--transition);
}
.user-menu:hover { background: var(--bg-card-hover); }
.user-avatar { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; }
.user-name { font-size: 0.85rem; color: var(--text-primary); }

.user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  min-width: 160px;
  z-index: 200;
  overflow: hidden;
}
.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 0.9rem;
  color: var(--text-primary);
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  transition: background var(--transition);
}
.dropdown-item:hover { background: var(--bg-card-hover); }

/* Filters bar */
.filters-bar {
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}
.filters-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  max-width: 1400px;
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: none;
}
.filters-inner::-webkit-scrollbar { display: none; }

.filter-select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 12px;
  color: var(--text-primary);
  font-size: 0.85rem;
  cursor: pointer;
  outline: none;
  flex-shrink: 0;
  transition: border-color var(--transition);
}
.filter-select:focus { border-color: var(--accent); }

.genre-chips { display: flex; gap: 6px; flex-wrap: nowrap; }
.genre-chip {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  color: var(--text-secondary);
  font-size: 0.8rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
  flex-shrink: 0;
}
.genre-chip:hover { border-color: var(--accent); color: var(--text-primary); }
.genre-chip.active { background: var(--accent); border-color: var(--accent); color: white; }

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 16px;
}

/* Active filters */
.active-filters {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 0.85rem;
}
.filter-label { color: var(--text-muted); }
.filter-tag {
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 20px;
  padding: 2px 10px;
  cursor: pointer;
  transition: background var(--transition);
}
.filter-tag:hover { background: rgba(108,99,255,0.3); }
.clear-filters {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 0 4px;
}
.total-count { color: var(--text-muted); margin-left: auto; }

/* Section header */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.section-header h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.2rem;
  font-weight: 600;
}
.btn-back {
  background: none;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.85rem;
  transition: all var(--transition);
}
.btn-back:hover { border-color: var(--accent); color: var(--accent); }

/* ============================================
   CHANNEL GRID
   ============================================ */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (min-width: 480px) {
  .channel-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 768px) {
  .channel-grid { grid-template-columns: repeat(4, 1fr); gap: 16px; }
}
@media (min-width: 1024px) {
  .channel-grid { grid-template-columns: repeat(5, 1fr); }
}
@media (min-width: 1280px) {
  .channel-grid { grid-template-columns: repeat(6, 1fr); }
}

/* Channel Card */
.channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
}
.channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-light);
  box-shadow: var(--shadow-card);
}
.channel-card.is-playing {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

/* Card cover */
.card-cover {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--bg-secondary);
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.channel-card:hover .card-cover img { transform: scale(1.05); }

.card-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  color: white;
}
.channel-card:hover .card-play-overlay,
.channel-card.is-playing .card-play-overlay { opacity: 1; }

.card-format {
  position: absolute;
  top: 6px;
  left: 6px;
  background: rgba(0,0,0,0.7);
  color: var(--text-secondary);
  font-size: 0.65rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

/* Card info */
.card-info {
  padding: 10px;
}
.card-title {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-height: 1.3;
  min-height: 2.2em;
  margin-bottom: 6px;
}
.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  margin-bottom: 6px;
}
.card-country {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.73rem;
  color: var(--text-secondary);
  overflow: hidden;
}
.card-country span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.card-bitrate {
  font-size: 0.68rem;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.card-genres { display: flex; flex-wrap: wrap; gap: 3px; }
.genre-tag {
  font-size: 0.65rem;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 4px;
  padding: 1px 5px;
  white-space: nowrap;
}

/* Favorite button */
.card-favorite {
  position: absolute;
  top: 6px;
  right: 6px;
  background: rgba(0,0,0,0.6);
  border: none;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition);
  opacity: 0;
}
.channel-card:hover .card-favorite,
.card-favorite.active { opacity: 1; }
.card-favorite:hover { background: rgba(0,0,0,0.8); color: var(--danger); }
.card-favorite.active { color: var(--danger); }

/* ============================================
   SKELETON LOADERS
   ============================================ */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton .card-cover.skeleton-img,
.skeleton-line {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
}
.skeleton .card-cover.skeleton-img { aspect-ratio: 1; }
.skeleton-line { height: 12px; margin: 6px 0; }
.skeleton-line.long { width: 80%; }
.skeleton-line.short { width: 50%; }

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-secondary);
}
.empty-icon { font-size: 3rem; margin-bottom: 12px; }
.empty-state p { margin-bottom: 16px; font-size: 1rem; }

/* ============================================
   PLAYER BAR
   ============================================ */
.player-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(22,22,31,0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 24px rgba(0,0,0,0.5);
}

.player-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  max-width: 1400px;
  margin: 0 auto;
  height: var(--player-height);
}

.player-info {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
  cursor: pointer;
}

.player-cover {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--border);
}

.player-text { min-width: 0; }
.player-name {
  font-size: 0.9rem;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-primary);
}
.player-sub {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 2px;
}
.player-format {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.65rem;
  font-weight: 600;
}

.live-badge {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--danger);
  text-transform: uppercase;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
.live-dot {
  width: 6px;
  height: 6px;
  background: var(--danger);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

/* Player controls */
.player-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.player-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition);
}
.player-btn:hover { background: var(--bg-card); }
.player-btn:first-child { background: var(--accent); color: white; }
.player-btn:first-child:hover { background: var(--accent-hover); }
.stop-btn { color: var(--text-secondary); }

.volume-control {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
}
.volume-slider {
  width: 80px;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 50%;
}

.player-error {
  font-size: 0.78rem;
  color: var(--warning);
  flex-shrink: 0;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.spin { animation: spin 1s linear infinite; }

/* Player transitions */
.player-enter { transition: transform 0.3s ease; }
.player-enter-start { transform: translateY(100%); }
.player-enter-end { transform: translateY(0); }

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
  position: fixed;
  bottom: calc(var(--player-height) + 16px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-size: 0.85rem;
  color: var(--text-primary);
  box-shadow: var(--shadow);
  white-space: nowrap;
}
.toast.success { border-color: var(--success); color: var(--success); }
.toast.error { border-color: var(--danger); color: var(--danger); }

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-width: 480px) {
  .logo span { display: none; }
  .user-name { display: none; }
  .volume-control { display: none; }
  .player-inner { padding: 8px 12px; }
  .main-content { padding: 12px; }
  .header-inner { padding: 8px 12px; }
}

@media (max-width: 360px) {
  .channel-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
}

/* Scrollbar styling */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }