/* Personalización del form-floating con color verde */
.form-floating > .form-control:focus {
    border-color: #28a745;
    box-shadow: 0 0 0 0.25rem rgba(40, 167, 69, 0.25);
}

.form-floating > .form-control:focus ~ label {
    color: #28a745;
}

/* Link de volver en color verde */
.link {
    color: #28a745;
    text-decoration: none;
    transition: color 0.3s ease;
}

.link:hover {
    color: #1e7e34;
    text-decoration: underline;
}

.alert-success {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

/* Estilos modo claro (por defecto) */
.form-floating > label {
    color: #000000;
}

/* Botón modo oscuro */
.modo-oscuro-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #28a745;
    color: white;
    border: none;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modo-oscuro-btn:hover {
    background: #1e7e34;
    transform: scale(1.1);
}

/* Estilos modo oscuro */
body.modo-oscuro {
    background-color: #1a1a1a;
    color: #e0e0e0;
}

body.modo-oscuro .container-reset {
    background-color: #1a1a1a;
}

body.modo-oscuro .right-panel {
    background-color: #2d2d2d;
}

body.modo-oscuro .form-box {
    background-color: #2d2d2d;
}

body.modo-oscuro h2 {
    color: #e0e0e0;
}

body.modo-oscuro .form-control {
    background-color: #3a3a3a;
    border-color: #555;
    color: #e0e0e0;
}

body.modo-oscuro .form-control:focus {
    background-color: #3a3a3a;
    border-color: #28a745;
    color: #e0e0e0;
}

body.modo-oscuro .form-floating > label {
    color: #ffffff !important;
}

body.modo-oscuro .form-floating > .form-control:focus ~ label {
    color: #28a745 !important;
}

body.modo-oscuro .link {
    color: #4ade80;
}

body.modo-oscuro .link:hover {
    color: #22c55e;
}

body.modo-oscuro .alert-success {
    background-color: #1e4620;
    border-color: #28a745;
    color: #4ade80;
}


/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .container-reset {
        flex-direction: column;
    }
    
    .left-panel {
        flex: 1;
        height: 40vh;
    }
    
    .right-panel {
        flex: 1;
        padding: 30px 20px;
    }
}

@media (max-width: 768px) {
    .left-panel {
        height: 30vh;
    }
    
    .right-panel {
        padding: 20px 15px;
    }
    
    .form-box {
        max-width: 100%;
        padding: 15px;
    }
    
    .form-box h2 {
        font-size: 1.5rem;
    }
    
    .left-panel .caption {
        bottom: 10px;
        left: 10px;
        padding: 10px 15px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .left-panel {
        height: 25vh;
    }
    
    .right-panel {
        padding: 15px 10px;
    }
    
    .form-box {
        padding: 10px;
    }
    
    .form-box h2 {
        font-size: 1.3rem;
        margin-bottom: 15px;
    }
    
    .btn {
        padding: 10px;
        font-size: 14px;
    }
    
    .form-floating {
        margin-bottom: 1rem;
    }
    
    .link {
        font-size: 12px;
    }
    
    .left-panel .caption {
        display: none;
    }
}