/* ====== ESTILOS GENERALES ====== */
body {
    font-family: "Segoe UI", Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f6f8;
    color: #222;
}

header {
    background-color: #003366;
    color: #fff;
    padding: 1rem 2rem;
    text-align: center;
}

header h1 {
    margin: 0.2em 0;
    font-weight: 600;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

nav a {
    color: #cce0ff;
    text-decoration: none;
    font-weight: 500;
}

nav .active, nav a:hover {
    color: #fff;
    border-bottom: 2px solid #fff;
}

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

h2 {
    color: #003366;
    border-left: 4px solid #007acc;
    padding-left: 0.5em;
}

.responsive-img {
    width: 100%;
    max-width: 800px;
    border-radius: 8px;
    display: block;
    margin: 1rem auto;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 8px;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* ====== LINKS ====== */
.links ul {
    list-style: none;
    padding: 0;
}

.links li {
    margin: 1em 0;
}

.links a {
    text-decoration: none;
    color: #007acc;
    font-weight: 600;
}

.links a:hover {
    text-decoration: underline;
}

/* ====== FOOTER ====== */
footer {
    text-align: center;
    background-color: #003366;
    color: #cce0ff;
    padding: 1rem;
    margin-top: 2rem;
    font-size: 0.9em;
}