/* Fondo general con imagen y filtro */
body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', sans-serif;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}
body::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: url("../img/logo.png") no-repeat center center;
    background-size: cover;
    filter: brightness(1.2) contrast(1.1);
    z-index: -1;
}

/* Imagen de fondo con filtro visual */
body::after {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(0,198,255,0.3), rgba(127,0,255,0.3));
    z-index: -1; /* igual que ::before */
    pointer-events: none;
}



/* Contenedor del login */
.login-container {
    background: rgba(255, 255, 255, 0.65); /* Más translúcido */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.25);
    width: 360px;
    text-align: center;
    z-index: 1;
}
.login-container {
    animation: fadeInLogin 1s ease-out forwards;
    opacity: 0;
}

@keyframes fadeInLogin {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}




/* Título */
.login-container h2 {
    margin-bottom: 30px;
    color: #1e2a38;
}

/* Formulario */
form {
    display: flex;
    flex-direction: column;
}

/* Etiquetas */
label {
    text-align: left;
    margin-bottom: 5px;
    font-weight: bold;
    color: #333;
}

/* Campos de entrada */
input {
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

/* Botón */
button {
    padding: 12px;
    background-color: #1e2a38;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #2c3e50;
}

/* Mensaje de error */
.error {
    color: red;
    margin-top: 10px;
}

/* Día: fondo claro */
body.day-mode::after {
    background: linear-gradient(135deg, rgba(0,198,255,0.3), rgba(127,0,255,0.3));
}

/* Noche: fondo más profundo */
body.night-mode::after {
    background: linear-gradient(135deg, rgba(30,30,60,0.5), rgba(80,0,120,0.5));
}






@media (max-width: 480px) {
    .login-container {
        width: 90%;
        padding: 30px 20px;
        border-radius: 10px;
    }

    .login-container h2 {
        font-size: 24px;
    }

    input, button {
        font-size: 16px;
    }
}