:root {
    --color-fondo: #f4f4f4;
    --color-card: #ffffff;
    --color-texto: #222222;
    --color-primario: #333333;
    --color-borde: #cccccc;
    --color-item: #fafafa;
}

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

body {
    background-color: var(--color-fondo);
    color: var(--color-texto);
    font-family: sans-serif;
    line-height: 1.6;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background-color: #ddd;
    border-bottom: 1px solid var(--color-borde);
    flex-wrap: wrap;
    gap: 10px;
}

.header h1 {
    font-size: 20px;
}

.nav a {
    text-decoration: none;
    color: var(--color-primario);
    font-weight: bold;
    padding: 6px 12px;
}

.main-container {
    padding: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.card {
    background: var(--color-card);
    border: 1px solid var(--color-borde);
    padding: 25px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.card h2 {
    font-size: 22px;
    color: var(--color-primario);
    border-bottom: 2px solid var(--color-primario);
    padding-bottom: 8px;
}

.fecha-vigencia {
    color: #666;
}

.seccion-legal {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.seccion-legal h3 {
    font-size: 16px;
    color: var(--color-primario);
}

.seccion-legal p {
    font-size: 14px;
}

.seccion-legal ul {
    margin-left: 20px;
    font-size: 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.seccion-legal code {
    background: #eaeaea;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 13px;
}

.acciones-retorno {
    margin-top: 10px;
    padding-top: 15px;
    border-top: 1px solid var(--color-borde);
}

.btn-primary {
    display: inline-block;
    background: var(--color-primario);
    color: var(--color-card);
    text-decoration: none;
    border: none;
    padding: 10px 18px;
    font-size: 14px;
    cursor: pointer;
}

.btn-primary:hover {
    background: #555;
}