body {
    background: url('../../img/fondo.svg') center center/cover no-repeat fixed;
    min-height: 100vh;
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    color: #212529;
}

.intro-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.intro-card {
    background: #fff;
    border-radius: 1.5rem;
    box-shadow: 0 8px 32px rgba(13, 110, 253, 0.15);
    padding: 2.5rem 2rem 2rem 2rem;
    max-width: 420px;
    width: 100%;
    text-align: center;
    position: relative;
}

.intro-title {
    font-size: 1.7rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    color: #0d6efd;
}

.intro-instructions {
    text-align: left;
    margin: 0 0 2rem 0;
    padding-left: 1.2rem;
    color: #333;
    font-size: 1.08rem;
}
.intro-instructions li {
    margin-bottom: 0.7rem;
}

.intro-btn {
    background: linear-gradient(90deg, #0d6efd  0%, #0E0F5E 100%);
    color: #fff;
    border: none;
    border-radius: 0.7rem;
    padding: 0.9rem 2.2rem;
    font-size: 1.1rem;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(13, 110, 253, 0.13);
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}
.intro-btn:hover {
    background: linear-gradient(90deg, #0d6efd  0%, #0E0F5E 100%);
    transform: translateY(-2px) scale(1.04);
}

.intro-logo {
    display: block;
    margin: 0 auto 1.2rem auto;
    max-width: 180px;
    height: auto;
}


@media (max-width: 600px) {
    .intro-card {
        padding: 1.2rem 0.5rem 1.5rem 0.5rem;
        max-width: 98vw;
    }
    .intro-title {
        font-size: 1.2rem;
    }
    .intro-btn {
        font-size: 1rem;
        padding: 0.7rem 1.2rem;
    }
}