body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Poppins', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
    color: white;
    text-align: center;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.7);
}

/* Video di sfondo */
#bg-video {
    position: fixed;
    top: 0;
    left: 0;
    min-width: 100%;
    min-height: 100%;
    object-fit: cover;
    z-index: -1;
}

.glass-card {
    background: #474747;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-radius: 1rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
    color: #fff;
}

.glass-card h3 {
    text-align: center;
    font-weight: 600;
    color: #f1f1f1;
}

.form-control {
    border-radius: .5rem;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.form-control::placeholder {
    color: #ddd;
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.3);
    color: #fff;
    box-shadow: 0 0 10px rgba(250, 157, 57, 0.4);
    border-color: #fa9d39;
}

.btn-primary {
    background-color: #fa9d39;
    border: none;
    font-weight: 500;
    transition: background 0.3s ease, transform 0.2s ease;
    color: white;
}

.btn-primary:hover {
    background-color: #e68a2d;
    transform: scale(1.03);
}

.alert {
    background-color: rgba(255, 0, 0, 0.2);
    border: none;
    color: #ffe5e5;
    font-weight: 500;
    text-align: center;
}

.footer {
    text-align: center;
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
}