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

        body {
            font-family: Arial, sans-serif;
            background-color: #f0f0f0;
        }

        header {
            background-color: #333;
            color: white;
            padding: 1rem;
        }

        header h1 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }

        nav {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        nav button {
            background-color: #555;
            color: white;
            border: none;
            padding: 0.5rem 1rem;
            cursor: pointer;
            border-radius: 4px;
            transition: background-color 0.3s;
        }

        nav button:hover {
            background-color: #777;
        }

        nav button.active {
            background-color: #007bff;
        }

        main {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 1rem;
        }

        .info {
            background-color: white;
            padding: 1rem;
            margin-bottom: 1rem;
            border-radius: 4px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        .info a {
            color: #007bff;
            text-decoration: none;
        }

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

        #flash-container {
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: white;
            padding: 2rem;
            border-radius: 4px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            min-height: 500px;
        }

        #player-wrapper {
            width: 100%;
            max-width: 800px;
            aspect-ratio: 4/3;
        }

        .no-content {
            text-align: center;
            color: #666;
        }