:root {
    --background: #e6e6e6;
    --text: #2c3e50;
    --sidebar-bg: linear-gradient(145deg, #2c3e50, #1f2a44);
    --sidebar-item-bg: #34495e;
    --sidebar-item-hover: #3e5c76;
    --button-bg: #3498db;
    --button-hover: #2980b9;
    --popup-bg: #ecf0f1;
    --accent: #3498db;
}
[data-theme="dark"] {
    --background: #1c2526;
    --text: #ecf0f1;
    --sidebar-bg: linear-gradient(145deg, #263238, #1c2526);
    --sidebar-item-bg: #2c3e50;
    --sidebar-item-hover: #34495e;
    --button-bg: #2980b9;
    --button-hover: #1f6391;
    --popup-bg: #263238;
    --accent: #2980b9;
}
[data-theme="ocean-blue"] {
    --background: #d1e8f4;
    --text: #0a3d62;
    --sidebar-bg: linear-gradient(145deg, #0a3d62, #1b263b);
    --sidebar-item-bg: #3e92cc;
    --sidebar-item-hover: #5e9ed6;
    --button-bg: #1b4965;
    --button-hover: #2a628f;
    --popup-bg: #b3d9f2;
    --accent: #1b4965;
}
[data-theme="emerald-green"] {
    --background: #d4e4d8;
    --text: #1a3c34;
    --sidebar-bg: linear-gradient(145deg, #1a3c34, #2e4a3f);
    --sidebar-item-bg: #3a6f47;
    --sidebar-item-hover: #4a8a5a;
    --button-bg: #2e4a3f;
    --button-hover: #3f6b52;
    --popup-bg: #b8d8be;
    --accent: #2e4a3f;
}
[data-theme="slate-gray"] {
    --background: #d5d8dc;
    --text: #2d3436;
    --sidebar-bg: linear-gradient(145deg, #2d3436, #353b48);
    --sidebar-item-bg: #4b5155;
    --sidebar-item-hover: #5f676b;
    --button-bg: #636e72;
    --button-hover: #7b878a;
    --popup-bg: #b2bec3;
    --accent: #636e72;
}
body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background-color: var(--background);
    color: var(--text);
    overflow: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}
.container {
    display: flex;
    height: 100vh;
    width: 100vw;
    position: relative;
}
.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    width: 100%;
    height: 100%;
}
.datetime {
    position: absolute;
    top: 10px;
    left: 10px;
    color: #ecf0f1;
    background: rgba(0, 0, 0, 0.7);
    padding: 5px 10px;
    border-radius: 3px;
    font-size: 14px;
    z-index: 15;
}
.tv-frame {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}
video.tv-screen {
    width: 100vw;
    height: 100vh;
    object-fit: fill;
    background-color: black;
}
.controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 5px;
    z-index: 20;
    background: rgba(0, 0, 0, 0.7);
    padding: 8px;
    border-radius: 8px;
    opacity: 1;
    transition: opacity 0.3s ease;
}
.controls.hidden {
    opacity: 0;
    pointer-events: none;
}
button {
    background: var(--button-bg);
    color: white;
    border: none;
    padding: 5px 10px;
    cursor: pointer;
    border-radius: 3px;
    transition: background 0.3s ease;
}
button:hover {
    background: var(--button-hover);
}
select {
    background: var(--button-bg);
    color: white;
    border: none;
    padding: 5px;
    border-radius: 3px;
    cursor: pointer;
    transition: background 0.3s ease;
}
select:hover {
    background: var(--button-hover);
}
.sidebar {
    width: 250px;
    background: var(--sidebar-bg);
    color: #ecf0f1;
    height: 100%;
    position: fixed;
    top: 0;
    right: 0;
    transform: translateX(100%);
    transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
    padding: 15px;
    box-shadow: -3px 0 10px rgba(0, 0, 0, 0.3);
    z-index: 30;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}
.sidebar.active {
    transform: translateX(0);
}
.sidebar-section {
    margin-bottom: 15px;
}
.sidebar-section label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    cursor: pointer;
}
.sidebar-section input[type="checkbox"] {
    appearance: none;
    width: 16px;
    height: 16px;
    border: 2px solid #95a5a6;
    border-radius: 3px;
    background: var(--sidebar-item-bg);
    cursor: pointer;
}
.sidebar-section input[type="checkbox"]:checked {
    background: var(--accent);
    border-color: var(--accent);
    position: relative;
}
.sidebar-section input[type="checkbox"]:checked::after {
    content: '✔';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 10px;
}
.url-load-container {
    display: flex;
    gap: 8px;
    align-items: center;
}
.sidebar input[type="text"] {
    width: 100%;
    padding: 8px;
    border-radius: 5px;
    border: 1px solid #7f8c8d;
    background: var(--sidebar-item-bg);
    color: #ecf0f1;
    font-size: 14px;
    transition: background 0.3s ease, border 0.3s ease;
}
.sidebar input[type="text"]:focus {
    border-color: var(--accent);
    background: var(--sidebar-item-hover);
    outline: none;
}
.load-url-btn {
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--button-bg);
    border-radius: 5px;
}
.load-url-btn:hover {
    background: var(--button-hover);
}
.file-upload {
    margin-bottom: 15px;
}
.file-upload label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    background: var(--sidebar-item-bg);
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}
.file-upload label:hover {
    background: var(--sidebar-item-hover);
}
.file-upload input[type="file"] {
    display: none;
}
.status-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
    padding: 8px 0;
    position: sticky;
    bottom: 12px;
    background: inherit;
    font-size: 14px;
    width: 100%;
    box-sizing: border-box;
}
.status-item {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    padding: 5px 8px;
    border-radius: 5px;
    background: var(--sidebar-item-bg);
    transition: background 0.3s ease;
    flex: 1;
    justify-content: center;
}
.status-item:hover {
    background: var(--sidebar-item-hover);
}
.channel-list {
    max-height: calc(100vh - 290px);
    overflow-y: auto;
    flex-grow: 1;
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
    scrollbar-width: none;
}
.history-list {
    max-height: calc(100vh - 290px);
    overflow-y: auto;
    flex-grow: 1;
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.channel-item, .history-item {
    display: flex;
    align-items: center;
    padding: 8px;
    margin-bottom: 5px;
    border-radius: 5px;
    background: var(--sidebar-item-bg);
    cursor: pointer;
    transition: background 0.3s ease;
    width: 100%;
    box-sizing: border-box;
}
.channel-item:hover, .history-item:hover {
    background: var(--sidebar-item-hover);
}
.current-channel {
    border: 2px solid #f1c40f;
}
.channel-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    margin-right: 10px;
    background: #fff;
    border-radius: 3px;
}
.channel-name {
    flex: 1;
    font-size: 14px;
}
.history-name {
    flex: 1;
    font-size: 14px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.favorite-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}
.favorite-btn svg {
    fill: #bdc3c7;
}
.favorite-btn.favorited svg {
    fill: #e74c3c;
}
.popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--popup-bg);
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    max-height: 80vh;
    overflow-y: auto;
    transition: background 0.3s ease, color 0.3s ease;
    border-radius: 8px;
}
.popup-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}
.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #e74c3c;
    border: none;
    color: white;
    padding: 5px;
    cursor: pointer;
    border-radius: 3px;
    transition: background 0.3s ease;
}
.theme-icon {
    transition: fill 0.3s ease;
}
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    color: #ecf0f1;
    font-size: 16px;
}
.loading-overlay.active {
    display: flex;
}
.circle-progress {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 20px auto;
}
.circle-progress canvas {
    width: 100%;
    height: 100%;
}
.circle-progress span {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 16px;
    color: #ecf0f1;
}
.epg-program {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-bottom: 1px solid #ccc;
}
.epg-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: 5px;
}
.epg-thumbnail {
    width: 80px;
    height: 45px;
    object-fit: cover;
    border-radius: 5px;
}
.epg-details {
    flex: 1;
}
@media (max-width: 768px) {
    .sidebar {
        width: 80vw;
        max-width: 300px;
    }
    .sidebar-section label, .channel-name, .history-name, .status-item {
        font-size: 12px;
    }
    .channel-logo {
        width: 32px;
        height: 32px;
    }
    .channel-item, .history-item {
        padding: 6px;
    }
    .sidebar input[type="text"] {
        padding: 6px;
        font-size: 12px;
    }
    .load-url-btn {
        padding: 6px;
    }
    .file-upload label {
        padding: 6px;
    }
    .status-item {
        padding: 4px 6px;
    }
    .datetime {
        font-size: 12px;
        padding: 3px 6px;
    }
    .epg-logo {
        width: 40px;
        height: 40px;
    }
    .epg-thumbnail {
        width: 60px;
        height: 34px;
    }
}
@media (orientation: portrait) and (max-width: 768px) {
    .channel-list, .history-list {
        max-height: calc(100vh - 280px);
    }
}
@media (orientation: landscape) and (max-width: 1024px) {
    .sidebar {
        width: 60vw;
        max-width: 250px;
    }
    .channel-list, .history-list {
        max-height: calc(100vh - 300px);
    }
    .sidebar-section label, .channel-name, .history-name, .status-item {
        font-size: 11px;
    }
    .channel-logo {
        width: 28px;
        height: 28px;
    }
    .channel-item, .history-item {
        padding: 5px;
    }
    .sidebar input[type="text"] {
        padding: 5px;
        font-size: 11px;
    }
    .load-url-btn {
        padding: 5px;
    }
    .file-upload label {
        padding: 5px;
    }
    .status-item {
        padding: 3px 5px;
    }
    .datetime {
        font-size: 11px;
        padding: 2px 5px;
    }
}