* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #ffffff;
    color: #222222;
    line-height: 1.5;
}

/* ---------- Barra de navegación ---------- */
header.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 30px;
    border-bottom: 1px solid #dddddd;
}

header.topbar h1 {
    font-size: 18px;
    font-weight: bold;
}

nav.menu a {
    color: #222222;
    text-decoration: none;
    margin-left: 20px;
    font-size: 14px;
    padding-bottom: 2px;
}

nav.menu a:hover,
nav.menu a.activo {
    border-bottom: 2px solid #222222;
}

/* ---------- Contenedor general ---------- */
main {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
}

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

/* ---------- Formulario ---------- */
form .campo {
    margin-bottom: 16px;
}

form label {
    display: block;
    margin-bottom: 4px;
    font-size: 14px;
    font-weight: bold;
}

form input[type="text"],
form input[type="tel"],
form input[type="email"] {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #cccccc;
    font-size: 14px;
}

form input:focus {
    outline: none;
    border-color: #222222;
}

.radios {
    display: flex;
    gap: 20px;
}

.radios label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: normal;
}

button, .btn {
    background: #222222;
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    font-size: 14px;
    cursor: pointer;
}

button:hover, .btn:hover {
    background: #444444;
}

/* ---------- Búsqueda (modificar.php) ---------- */
form.busqueda {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    margin-bottom: 10px;
}

form.busqueda .campo {
    flex: 1;
    margin-bottom: 0;
}

input[readonly] {
    background: #f2f2f2;
    color: #666666;
}

.mensaje {
    margin-top: 16px;
    font-size: 14px;
    font-weight: bold;
}

.mensaje.exito {
    color: #1a7a1a;
}

.mensaje.error {
    color: #b30000;
}

/* ---------- Tabla (mostrar/leerXml) ---------- */
.table-card {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th, table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid #dddddd;
    font-size: 14px;
}

table th {
    border-bottom: 2px solid #222222;
    font-weight: bold;
}