body,
html {
    height: 100%;
    font-family: 'Poppins', sans-serif;
    margin: 0;
}

.login-page {
    background: url('../img/gif/fine4.gif') no-repeat center center fixed;
    background-size: cover;
    position: relative;
    min-height: 100vh;
}

.login-page::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    /* oscurece para que se lea bien */
}

.login-card {
    background: rgba(0, 0, 0, 0.85);
    /* fondo negro semi-transparente */
    border-radius: 1rem;
    max-width: 400px;
    width: 100%;
    position: relative;
    z-index: 1;
    color: #f5f5f5;
}

.btn-primary {
    background: linear-gradient(90deg, #ffffff, #ffffff);
    /* dorado degradado */
    border: none;
    color: #000;
    font-weight: 600;
}

.btn-primary:hover {
    background: linear-gradient(90deg, #B8860B, #FFD700);
    color: #000;
}

.form-control {
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
}

.form-control:focus {
    border-color: #FFD700;
    box-shadow: 0 0 0 0.2rem rgba(255, 215, 0, 0.4);
}