/* Estilos generales */
body {
    background: linear-gradient(135deg, #5d5d5d, #6A11CB, #4b2f51);
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: #fff;
}

.main-container {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    width: 75%;
    max-width: 1200px;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    padding: 20px;
    color: #333;
}

/* Imagen */
.ventas-img {
    width: 100%;
    max-width: 500px;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* Contenedor del formulario */
.form-container {
    flex: 1;
    padding: 40px;
    text-align: center;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    width: 100%;
}

h2 {
    font-size: 24px;
    margin-bottom: 20px;
}

.input-group {
    margin-bottom: 15px;
}

input[type="text"], input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
}

button {
    width: 100%;
    padding: 12px;
    background-color: #6A11CB;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #2575FC;
}

/* Modal */
.modal {
    visibility: hidden;
    opacity: 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.6);
    transition: opacity 0.3s, visibility 0.3s;
}

.modal.active {
    visibility: visible;
    opacity: 1;
}

.modal-content {
    background: white;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.modal-content h3 {
    color: #e74c3c;
}

.modal-content p {
    color: #333;
}

.modal-content button {
    background-color: #6A11CB;
    color: white;
    border: none;
    border-radius: 5px;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
}

.modal-content button:hover {
    background-color: #2575FC;
}

/* Responsividad */
@media (max-width: 768px) { /* Tablets */
    .main-container {
        flex-direction: column;
        text-align: center;
        width: 90%;
        padding: 20px;
    }
    
    .ventas-img {
        max-width: 300px;
    }
}

@media (max-width: 480px) { /* Móviles */
    .main-container {
        flex-direction: column;
        width: 95%;
        padding: 15px;
    }

    .ventas-img {
        max-width: 250px;
    }

    h2 {
        font-size: 1.5rem;
    }

    button {
        font-size: 1rem;
        padding: 0.75rem;
    }
}