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

:root {
  --bg-primary: #0f0f11;
  --bg-secondary: #1a1a1f;
  --bg-tertiary: #24242b;
  --bg-hover: #2c2c35;
  --text-primary: #e8e8ed;
  --text-secondary: #9898a3;
  --text-muted: #6c6c7a;
  --accent: #5b7cfa;
  --accent-hover: #4a6ae0;
  --accent-dim: rgba(91, 124, 250, 0.15);
  --danger: #e34a4a;
  --border: #2c2c35;
  --radius: 8px;
  --radius-sm: 4px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  --transition: 150ms ease;
  --sidebar-width: 260px;
  --topbar-height: 52px;
  --player-min-height: 200px;
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  overflow: hidden;
}

#app {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.screen {
  height: 100%;
}

#main-app.screen {
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

/* ===== Login Screen ===== */

#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
}

.login-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 380px;
  max-width: 90vw;
  box-shadow: var(--shadow);
}

.login-card h1 {
  font-size: 24px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 4px;
}

.login-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 28px;
  font-size: 13px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cors-group {
  margin-bottom: 12px;
}

.cors-label {
  display: flex !important;
  align-items: flex-start;
  gap: 8px;
  font-size: 11px !important;
  font-weight: 400 !important;
  color: var(--text-muted) !important;
  text-transform: none !important;
  letter-spacing: normal !important;
  line-height: 1.4;
  cursor: pointer;
}

.cors-label input[type="checkbox"] {
  margin-top: 2px;
  width: auto;
  flex-shrink: 0;
}

#cors-proxy-select {
  margin-top: 8px;
  font-size: 12px;
  padding: 7px 10px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  width: 100%;
  cursor: pointer;
  outline: none;
}

#cors-proxy-select:focus {
  border-color: var(--accent);
}

#cors-proxy-custom {
  margin-top: 8px;
  font-size: 12px;
  padding: 7px 10px;
}

.cors-note {
  margin-top: 6px;
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.cors-note code {
  background: var(--bg-tertiary);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 10px;
}

.form-group input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition);
}

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

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

.error-message {
  background: rgba(227, 74, 74, 0.12);
  color: var(--danger);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 12px;
}

#login-btn {
  width: 100%;
  padding: 11px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
}

#login-btn:hover {
  background: var(--accent-hover);
}

#login-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ===== Top Bar ===== */

#top-bar {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 24px;
}

.app-title {
  font-size: 16px;
  font-weight: 700;
}

#main-tabs {
  display: flex;
  gap: 2px;
}

.tab {
  padding: 8px 16px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.tab:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.tab.active {
  color: var(--accent);
  background: var(--accent-dim);
}

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

#search-input {
  padding: 6px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  width: 200px;
  transition: border-color var(--transition);
}

#search-input:focus {
  border-color: var(--accent);
}

#search-input::placeholder {
  color: var(--text-muted);
}

#logout-btn {
  padding: 6px 14px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}

#logout-btn:hover {
  color: var(--danger);
  border-color: var(--danger);
}

/* ===== Main Layout ===== */

#main-layout {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* ===== Sidebar ===== */

#sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  flex-shrink: 0;
  height: 100%;
}

.sidebar-title {
  padding: 16px 16px 8px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
}

#category-list {
  list-style: none;
  padding: 4px 8px;
}

#category-list li {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13px;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#category-list li:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

#category-list li.active {
  background: var(--accent-dim);
  color: var(--accent);
}

/* ===== Content Area ===== */

#content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  height: 100%;
}

#items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.item-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.item-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.item-card .item-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  background: var(--bg-tertiary);
}

.item-card .item-thumb-movie {
  aspect-ratio: 2 / 3;
}

.item-card .item-info {
  padding: 10px 12px;
}

.item-card .item-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-card .item-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.item-download-btn {
  width: 100%;
  padding: 7px;
  background: var(--accent-dim);
  border: none;
  border-top: 1px solid var(--border);
  color: var(--accent);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

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

/* ===== Loading States ===== */

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 40px auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 14px;
}

.error-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--danger);
  font-size: 14px;
}

/* ===== Player Panel ===== */

#player-panel {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

#player-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 16px;
  background: var(--bg-tertiary);
}

#player-title {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#player-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 20px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

#player-close:hover {
  color: var(--text-primary);
}

#player-container {
  position: relative;
  background: #000;
}

#video-player {
  width: 100%;
  display: block;
  max-height: 50vh;
  background: #000;
}

/* ===== Series Detail ===== */

#series-detail {
  max-width: 800px;
}

.series-header {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
}

.series-poster {
  width: 180px;
  height: 270px;
  object-fit: cover;
  border-radius: var(--radius);
  flex-shrink: 0;
  background: var(--bg-tertiary);
}

.series-info h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.series-info .series-description {
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.6;
}

.series-info .series-meta {
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 8px;
}

.season-section {
  margin-bottom: 20px;
}

.season-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.download-season-btn {
  padding: 4px 10px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 11px;
  cursor: pointer;
  transition: background var(--transition);
}

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

.episode-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition);
}

.episode-item:hover {
  background: var(--bg-hover);
}

.episode-num {
  font-size: 12px;
  color: var(--text-muted);
  min-width: 28px;
}

.episode-title {
  flex: 1;
  font-size: 13px;
}

.episode-duration {
  font-size: 11px;
  color: var(--text-muted);
}

.download-btn {
  padding: 4px 8px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}

.download-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== EPG ===== */

#epg-container {
  margin-top: 8px;
  max-width: 600px;
}

.epg-heading {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

#epg-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.epg-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}

.epg-item.epg-current {
  border-left-color: #4ade80;
  background: rgba(74, 222, 128, 0.06);
}

.epg-time {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  min-width: 70px;
}

.epg-title {
  font-size: 13px;
  color: var(--text-primary);
}

.epg-current .epg-title {
  font-weight: 600;
}

.epg-current-badge {
  font-size: 10px;
  color: #4ade80;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-left: auto;
}

/* ===== Scrollbar ===== */

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ===== Responsive ===== */

@media (max-width: 1024px) {
  #sidebar {
    width: 220px;
  }

  #items-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }
}

@media (max-width: 768px) {
  #sidebar {
    width: 200px;
  }

  #items-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
  }

  .series-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .series-poster {
    width: 140px;
    height: 210px;
  }

  #top-bar {
    padding: 0 10px;
  }

  .top-bar-left {
    gap: 10px;
  }

  .app-title {
    display: none;
  }

  .tab {
    padding: 6px 10px;
    font-size: 12px;
  }

  #search-input {
    width: 120px;
  }
}

@media (max-width: 480px) {
  #sidebar {
    width: 160px;
  }

  #items-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 8px;
  }

  #content {
    padding: 10px;
  }

  .tab {
    padding: 6px 8px;
    font-size: 11px;
  }

  #search-input {
    width: 90px;
    font-size: 11px;
  }

  #login-screen .login-card {
    padding: 24px 20px;
  }
}