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

/* ===================== General ===================== */
body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f4f7fb;
    color: #333;
    line-height: 1.6;
}

/* ===================== Header ===================== */
header {
    background-color: #1565c0;
    color: white;
    text-align: center;
    padding: 2rem 1rem;
}

header h1 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ===================== Main ===================== */
main {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* ===================== Artículos ===================== */
article,
section {
    background-color: white;
    padding: 1.5rem 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

article h2,
section h2 {
    color: #1565c0;
    margin-bottom: 0.5rem;
}

.date {
    font-size: 0.9rem;
    color: #777;
    margin-bottom: 1rem;
}

/* ===================== Texto ===================== */
p {
    margin-bottom: 1rem;
}

ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

ul li {
    margin-bottom: 0.4rem;
}

code {
    background-color: #eef3fa;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* ===================== Enlaces ===================== */
a {
    color: #1565c0;
    text-decoration: none;
    font-weight: bold;
}

a:hover {
    text-decoration: underline;
}

.back-link {
    display: inline-block;
    margin-top: 1rem;
}

/* ===================== Footer ===================== */
footer {
    text-align: center;
    padding: 1.5rem;
    background-color: #e3eaf5;
    font-size: 0.9rem;
    color: #555;
}

/* ===================== Responsive ===================== */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }

    main {
        margin: 1rem;
    }
}