@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0a0d14;
  --bg-secondary: #111726;
  --bg-card: rgba(19, 26, 42, 0.7);
  --bg-card-hover: rgba(29, 39, 64, 0.9);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(99, 102, 241, 0.4);
  
  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;
  --accent-gradient: linear-gradient(135deg, #06b6d4, #6366f1, #a855f7);
  --card-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --live-red: #ef4444;
  --success-green: #10b981;
  --warning-amber: #f59e0b;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.25);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 65%, rgba(6, 182, 212, 0.1) 0%, transparent 45%);
  background-attachment: fixed;
}

/* Header & Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 13, 20, 0.85);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: var(--accent-gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

.brand-icon svg {
  width: 22px;
  height: 22px;
  fill: #ffffff;
}

.search-container {
  flex: 1;
  max-width: 520px;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 0.7rem 1.2rem 0.7rem 2.8rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.search-input:focus {
  border-color: var(--accent-cyan);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.25);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  fill: var(--text-muted);
  pointer-events: none;
}

.kbd-hint {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-color);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.1rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.88rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-blue);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  justify-content: center;
}

/* Main Container */
.main-content {
  flex: 1;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
  padding: 1.5rem 2rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Player Stage */
.player-stage {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 1.5rem;
  align-items: start;
}

.player-wrapper {
  background: #000000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card), var(--shadow-glow);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  display: flex;
  flex-direction: column;
}

.video-container {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 ratio */
  background: #000;
}

video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Custom Player Overlay Controls */
.player-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(0deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.4) 60%, transparent 100%);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 10;
}

.video-container:hover .player-overlay,
.player-overlay.active {
  opacity: 1;
}

.player-controls-left,
.player-controls-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ctrl-btn {
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  transition: var(--transition);
}

.ctrl-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

.ctrl-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.volume-slider {
  width: 80px;
  height: 5px;
  accent-color: var(--accent-cyan);
  cursor: pointer;
}

/* Badges */
.badge-live {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(239, 68, 68, 0.2);
  color: var(--live-red);
  border: 1px solid rgba(239, 68, 68, 0.4);
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-live::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--live-red);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--live-red);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.badge-pill {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
}

/* Channel Playing Meta */
.playing-meta {
  padding: 1.25rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.channel-info-main {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.channel-info-logo {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 4px;
  object-fit: contain;
}

.channel-info-text h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.channel-info-tags {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Sidebar / EPG / Channel Switcher Drawer */
.player-sidebar {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  height: 100%;
  max-height: 500px;
}

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

.sidebar-header h3 {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.quick-channel-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  overflow-y: auto;
  padding-right: 0.25rem;
}

.quick-channel-list::-webkit-scrollbar {
  width: 4px;
}
.quick-channel-list::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.15);
  border-radius: 4px;
}

.quick-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

.quick-item:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-hover);
}

.quick-item.active {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--accent-purple);
}

.quick-item img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.quick-item-name {
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

/* Category Filter Bar */
.category-section {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: none;
}

.category-section::-webkit-scrollbar {
  display: none;
}

.cat-chip {
  padding: 0.5rem 1.1rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
}

.cat-chip:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.cat-chip.active {
  background: var(--accent-gradient);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

/* Channel Grid */
.grid-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: -0.5rem;
}

.grid-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

/* Channel Card */
.channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.channel-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: var(--transition);
}

.channel-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.channel-card:hover::before {
  opacity: 1;
}

.channel-card.active {
  border-color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.08);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.25);
}

.channel-card.active::before {
  opacity: 1;
}

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

.card-logo {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 4px;
  object-fit: contain;
}

.card-fav-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  transition: var(--transition);
  padding: 4px;
}

.card-fav-btn:hover,
.card-fav-btn.active {
  color: #f59e0b;
  transform: scale(1.15);
}

.card-fav-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.card-body h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.card-body p {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  padding: 1.5rem;
}

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

.modal-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 560px;
  width: 100%;
  padding: 2rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.75);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--accent-purple);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.25);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  background: rgba(10, 13, 20, 0.7);
  padding: 1.5rem 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive Breakpoints & Mobile Optimization */
@media (max-width: 1024px) {
  .player-stage {
    grid-template-columns: 1fr;
  }
  .player-sidebar {
    max-height: 300px;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 0.75rem 1rem;
    gap: 0.75rem;
  }
  .search-container {
    order: 3;
    max-width: 100%;
    width: 100%;
  }
  .nav-actions {
    margin-left: auto;
  }
  .nav-actions .btn span {
    display: none;
  }
  .nav-actions .btn {
    padding: 0.6rem 0.85rem;
    min-height: 44px;
    min-width: 44px;
    justify-content: center;
  }
  .main-content {
    padding: 0.75rem 0.75rem 2.5rem;
    gap: 1.25rem;
  }
  .channel-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.85rem;
  }
}

/* 2-Column Mobile Layout for 480px, 412px, 390px, 375px, 360px, 320px */
@media (max-width: 540px) {
  .navbar {
    padding: 0.6rem 0.75rem;
  }
  .brand {
    font-size: 1.1rem;
  }
  .brand-icon {
    width: 32px;
    height: 32px;
  }
  .player-wrapper {
    border-radius: var(--radius-md);
  }
  .playing-meta {
    padding: 0.85rem;
  }
  .channel-info-logo {
    width: 40px;
    height: 40px;
  }
  .channel-info-text h2 {
    font-size: 0.98rem;
  }
  .ctrl-btn {
    width: 40px;
    height: 40px;
  }
  .volume-slider {
    width: 55px;
  }
  .channel-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.65rem;
  }
  .channel-card {
    padding: 0.85rem 0.75rem;
    gap: 0.5rem;
  }
  .card-logo {
    width: 38px;
    height: 38px;
  }
  .card-fav-btn {
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .card-body h4 {
    font-size: 0.88rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .card-body p {
    display: none;
  }
  .card-footer {
    padding-top: 0.5rem;
  }
  .cat-chip {
    padding: 0.45rem 0.85rem;
    font-size: 0.78rem;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
  .modal-card {
    padding: 1.25rem;
  }
}

/* Viewport safe areas and notch adaptation */
@supports (padding: env(safe-area-inset-bottom)) {
  body {
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    padding-left: env(safe-area-inset-left, 0px);
    padding-right: env(safe-area-inset-right, 0px);
  }
}