/* 1. Reset básico para quitar márgenes por defecto */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f9;
    color: #333;
}

/* 2. Estilo de la navegación */
nav {
    background-color: #2c3e50;
    padding: 1rem;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

nav ul li a:hover {
    color: #3498db;
}

/* 3. Estilo del contenido principal */
main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

/* 4. Pie de página */
footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.9rem;
    color: #777;
}
/* Estilos para el formulario */
.formulario {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1rem;
}

.grupo-input {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

label {
    font-weight: bold;
    color: #2c3e50;
}

input, textarea {
    padding: 0.8rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
    width: 100%;
}

input:focus, textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.3);
}

.boton-enviar {
    background-color: #2c3e50;
    color: white;
    padding: 1rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
}

.boton-enviar:hover {
    background-color: #34495e;
}