body {
        font-family: Arial, sans-serif;
        margin: 0;
        padding: 0;
        background-color: #0f0f0f;
        color: #333;
        display: flex;
        justify-content: center;
        align-items: flex-start;
        min-height: 100vh;
    }

    #contenedor {
        background-color: #0f0f0f;
        margin-top: 80px;
        padding: 10px;
        border-radius: 8px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        width: 100%;
        max-width: 1200px;
        box-sizing: border-box;
    }

    #player {
        margin-bottom: 0px;
    }

    .embed-responsive {
        display: block;
        width: 100%;
        padding: 0;
        overflow: hidden;
    }
    
    .embed-responsive-16by9::before {
        content: "";
        display: block;
        padding-top: 56.25%;
    }
    
    #youtube-player {
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 100%;
        border: none;
    }
    
    #player + br {
        display: none;
    }
    
    .popup-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.8);
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.4s ease;
    }

    .popup-overlay.show {
        opacity: 1;
        visibility: visible;
    }

    .popup {
        background-color: #ffffff;
        border-radius: 8px;
        padding: 30px 0px;
        text-align: center;
        color: #000000;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.7);
        width: 70%;
        max-width: 450px;
        transform: scale(0.9);
        transition: transform 0.4s ease;
    }

    .popup-overlay.show .popup {
        transform: scale(1);
    }

    .popup h3 {
        margin-top: 2px;
        font-size: 18px;
        color: #000000;
        font-weight: 500;
        margin-bottom: 0px;
        letter-spacing: 0.5px;
    }

    .popup p {
        margin-top: 2px;
        font-size: 12px;
        color: #000000;
        line-height: 1.6;
        margin-bottom: 15px;
    }

    .popup button {
        background-color: #ff4400;
        color: #ffffff;
        border: none;
        padding: 10px 30px;
        border-radius: 6px;
        cursor: pointer;
        font-size: 15px;
        font-weight: 500;
        letter-spacing: 0.8px;
        text-transform: uppercase;
        transition: background-color 0.2s ease, transform 0.1s ease;
    }
    
    .close-button {
        position: absolute;
        top: 10px;
        right: 15px;
        font-size: 24px;
        cursor: pointer;
        color: #888;
    }
    
    .close-button:hover {
        color: #555;
    }

    .popup button:hover {
        background-color: #e03200;
        transform: translateY(-2px);
    }
    
    .banner {
        position: fixed;
        top: 5%;
    }