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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #12c2e9, #c471ed, #f64f59);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

header p {
    font-size: 1.2rem;
    opacity: 0.95;
}

main {
    padding: 30px;
}

.video-container {
    position: relative;
    background: #000;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

#video {
    width: 100%;
    display: block;
    aspect-ratio: 16/9;
}

.loading, .error {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 1.2rem;
    text-align: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 10px;
    z-index: 10;
}

.error {
    color: #ff6b6b;
    background: rgba(0, 0, 0, 0.9);
}

.channels {
    margin-bottom: 30px;
}

.channels h2 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.8rem;
}

.channel-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
}

.channel-item {
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    text-align: center;
}

.channel-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.channel-item.active {
    background: linear-gradient(135deg, #12c2e9, #c471ed);
    box-shadow: 0 5px 20px rgba(18, 194, 233, 0.5);
}

.channel-name {
    font-weight: bold;
    font-size: 1.1rem;
}

.info {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.info h2 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.8rem;
}

.info p {
    line-height: 1.6;
    color: #555;
    margin-bottom: 10px;
}

.info a {
    color: #667eea;
    text-decoration: none;
    font-weight: bold;
}

.info a:hover {
    text-decoration: underline;
}

footer {
    background: #2d3748;
    color: white;
    padding: 20px 30px;
    text-align: center;
}

footer p {
    margin: 5px 0;
    opacity: 0.9;
}

footer a {
    color: #90cdf4;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    header h1 {
        font-size: 2rem;
    }

    header p {
        font-size: 1rem;
    }

    main {
        padding: 20px;
    }

    .channel-list {
        grid-template-columns: 1fr;
    }
}

/* Loading animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}