:root { --bg-dark: #12101B; --bg-panel: #1C192B; --accent-purple: #7B42F6; --text-primary: #EAEAEA; --text-secondary: #8A8891; --border-color: #302C40; --font-family: 'Manrope', sans-serif; }
* { margin: 0; padding: 0; box-sizing: border-box; }
#iptv-container { height: 90vh; display: flex; flex-direction: column; font-family: var(--font-family); background-color: var(--bg-dark); color: var(--text-primary); }
.main-header { padding: 20px 40px; background-color: var(--bg-panel); flex-shrink: 0; }
.header-content { display: flex; justify-content: space-between; align-items: center; gap: 40px; }
.main-header nav { display: flex; gap: 30px; flex-shrink: 0; }
.main-header nav a { text-decoration: none; color: var(--text-secondary); font-size: 1.1rem; font-weight: 700; padding-bottom: 15px; border-bottom: 3px solid transparent; transition: color 0.2s; }
.main-header nav a.active, .main-header nav a:hover { color: var(--text-primary); }
.main-header nav a.active { border-bottom-color: var(--accent-purple); }
.search-wrapper { position: relative; }
.search-wrapper i { position: absolute; top: 50%; transform: translateY(-50%); left: 15px; color: var(--text-secondary); }
.search-wrapper input { width: 100%; background-color: var(--bg-dark); border: 1px solid var(--border-color); border-radius: 8px; padding: 12px 15px 12px 40px; color: var(--text-primary); font-size: 1rem; font-family: var(--font-family); outline: none; }
.main-search-wrapper { flex-grow: 1; max-width: 500px; }
.main-content { display: flex; flex-grow: 1; overflow: hidden; background-color: var(--bg-panel); padding: 20px 40px 40px 40px; }
.category-panel, .channel-panel { display: flex; flex-direction: column; overflow: hidden; }
.category-panel { flex: 0 0 280px; border-right: 1px solid var(--border-color); }
.channel-panel { flex: 1; padding-left: 30px; }
.clusterize-scroll { flex-grow: 1; overflow-y: auto; }
.clusterize-scroll::-webkit-scrollbar { width: 6px; }
.clusterize-scroll::-webkit-scrollbar-thumb { background-color: var(--border-color); border-radius: 3px; }
#category-list, #channel-list { list-style: none; margin: 0; padding: 0; }
#category-list li { padding: 15px; border-radius: 8px; cursor: pointer; font-weight: 700; transition: background-color 0.2s; }
#category-list li.active { background-color: var(--accent-purple); color: var(--text-primary); }
#channel-list li { display: flex; align-items: center; gap: 15px; padding: 15px 10px; border-bottom: 1px solid var(--border-color); cursor: pointer; }
#channel-list li:hover { background-color: rgba(255, 255, 255, 0.05); }
.channel-logo { flex-shrink: 0; width: 45px; height: 45px; border-radius: 50%; overflow: hidden; display: flex; justify-content: center; align-items: center; background-color: var(--border-color); font-weight: 700; font-size: 1rem; }
.channel-logo img { width: 100%; height: 100%; object-fit: contain; }
.channel-info .channel-name { font-weight: 700; margin-bottom: 4px; }
.channel-info .channel-sub-name { color: var(--text-secondary); font-size: 0.9rem; }
.no-channels-prompt { display: flex; justify-content: center; align-items: center; height: 100%; color: var(--text-secondary); }
.spinner { border: 4px solid var(--border-color); border-top: 4px solid var(--accent-purple); border-radius: 50%; width: 40px; height: 40px; animation: spin 1s linear infinite; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
@media (max-width: 850px) { .header-content { flex-direction: column; align-items: stretch; gap: 20px;} .main-search-wrapper { max-width: none; } .main-header, .main-content { padding-left: 20px; padding-right: 20px; } .main-content { flex-direction: column; } .category-panel { flex-basis: auto; border-right: none; margin-bottom: 20px; padding: 0; max-height: 250px;} .channel-panel { padding-left: 0; } }