/* Reset básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

/* Fondo general */
body {
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Contenedor principal */
.container {
    background: #ffffff;
    padding: 40px;
    border-radius: 15px;
    width: 400px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* Título */
.container h1 {
    font-size: 20px;
    margin-bottom: 25px;
    color: #333;
}

/* Lista */
nav ul {
    list-style: none;
}

/* Espaciado entre botones */
nav ul li {
    margin: 10px 0;
}

/* Botones */
button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    background: #2a5298;
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

/* Iconos */
button i {
    margin-right: 8px;
}

/* Hover */
button:hover {
    background: #1e3c72;
    transform: scale(1.03);
}

/* Botón especial */
.btn-alarma-simulacion {
    background: #e74c3c;
}

.btn-alarma-simulacion:hover {
    background: #c0392b;
}