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

    body {
        background: linear-gradient(135deg, yellow 0%, rgb(170, 170, 0) 100%);
        font-family: 'Arial', sans-serif;
        min-height: 100vh;
        padding: 20px;
    }

    .container {
        max-width: 1400px;
        margin: 0 auto;
    }

    .header {
        background: rgba(255, 255, 255, 0.1);
        border: 3px solid black;
        border-radius: 50px;
        padding: 20px;
        text-align: center;
        margin-bottom: 40px;
        position: relative;
    }

    .header h1 {
        color: black;
        font-size: 3em;
        font-weight: bold;
        letter-spacing: 3px;
    }

    .grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 30px;
        padding: 20px;
    }

    .card {
        background: linear-gradient(to bottom, #000000 0%, #000000 100%);
        border-radius: 20px;
        padding: 30px 20px;
        text-align: center;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease;
        min-height: 280px;
        flex-direction: column;
        justify-content: space-between;
        display: grid flex;
        place-items: center;
        text-align: center;
    }

    .card:hover {
        transform: translateY(-5px);
    }

    .card-title {
        color: yellow;
        font-size: 1.6em;
        font-weight: bold;
        margin-bottom: 20px;
        min-height: 60px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .card-content {
        color: rgb(190, 190, 0);
        font-size: 1.1em;
        line-height: 1.8;
    }

    .card-content p {
        margin: 8px 0;
    }

    .back-link{
        color: rgba(255,255,255,0.9);
        font-size: 15px;
        text-decoration: none;
        display: inline-block;
        margin-bottom: 50px;
        transition: transform 0.3s ease;
    }

    .back-link:hover{
        text-decoration: underline;
        transform: scale(1.1);
    }

    .btn-derecha {
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    color: orange;
    font-size: 1.8em;
    font-weight: bold;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 6px 15px rgba(0,0,0,0.3);
    transition: 0.3s ease;
}

.btn-derecha:hover {
    transform: translateY(-50%) scale(1.1);
    background: #dbe2ff;
}

.btn-izquierda {
    position: absolute;
    left: 60px; 
    top: 50%;
    transform: translateY(-50%);
    background: white;
    color: orange;
    font-size: 1.8em;
    font-weight: bold;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 6px 15px rgba(0,0,0,0.3);
    transition: 0.3s ease;
}

.btn-izquierda:hover {
    transform: translateY(-50%) scale(1.1);
    background: #dbe2ff;
}

.letrapequeña {
    font-size: 1em;
}

.letrapequeñax2 {
    font-size: 0.76em;
}

    @media (max-width: 768px) {
        .header h1 {
            font-size: 2em;
        }

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