/* Estilos para el cuerpo y la fuente principal */
body {
    font-family: Tahoma, Geneva, sans-serif;
    line-height: 1.5;
    color: black;
    background-color: WhiteSmoke;
    margin: 0;
}

/* Contenedor central con ancho fijo */
.container {
    width: 1000px;
    margin: 20px auto;
    background-color: white;
    padding: 25px;
    border: 1px solid Silver;
}

/* Encabezado y menú */
header {
    background-color: Navy;
    color: white;
    padding: 15px 40px;
    display: flex;
    justify-content: space-between;
}

header a, .logo {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

nav ul {
    list-style-type: none;
    display: flex;
    margin: 0;
}

nav ul li {
    margin-left: 20px;
}

nav a:hover {
    color: SkyBlue;
}

/* Títulos y secciones */
h1 {
    color: Navy;
    border-bottom: 2px solid SteelBlue;
}

h2, h3 {
    color: SteelBlue;
}

.section {
    background-color: AliceBlue;
    padding: 15px;
    border-left: 6px solid SteelBlue;
    margin: 15px 0;
}

/* Tarjetas y Grid */
.card-grid {
    display: flex;
    gap: 15px;
    margin: 20px 0;
}

.card {
    flex: 1;
    border: 1px solid Gray;
    padding: 10px;
    background-color: white;
}

/* Formulario */
form {
    border: 1px solid LightGray;
    padding: 20px;
    width: 400px;
}

input, textarea {
    width: 90%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid DarkGray;
}

button {
    background-color: SteelBlue;
    color: white;
    padding: 10px;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: RoyalBlue;
}

/* Tablas */
table {
    width: 100%;
    border: 1px solid black;
    border-collapse: collapse;
}

th, td {
    border: 1px solid DarkGray;
    padding: 10px;
}

th {
    background-color: Navy;
    color: white;
}

/* Footer */
footer {
    background-color: Black;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 30px;
}

/* Imágenes */
img {
    border: 2px solid Gray;
    display: block;
    margin: 10px auto;
}