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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

/* NAVBAR */

.navbar {
    background: #000814;
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar ul {
    display: flex;
    justify-content: center;
    list-style: none;
}

.navbar li {
    margin: 0 20px;
}

.navbar a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

.navbar a:hover {
    color: #ffd60a;
}

/* HERO SECTION */

.hero {
    height: 100vh;
    background-image: url("jwst.jpg");
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 60px;
}

.overlay {
    background: rgba(0, 0, 0, 0.65);
    padding: 40px;
    border-radius: 12px;
    color: white;
    max-width: 900px;
}

/* PROFILE PHOTO */

.profile-photo {
    width: 180px;
    height: 180px;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid white;
    margin: 20px 0;
}

/* TEXT */

.subtitle {
    font-size: 1.1rem;
}

/* CONTENT SECTIONS */

.content {
    max-width: 900px;
    margin: auto;
    padding: 80px 20px;
}

h2 {
    color: #003566;
    margin-bottom: 20px;
}

ul {
    list-style: square;
    padding-left: 20px;
}

/* BUTTONS */

.button {
    display: inline-block;
    padding: 12px 25px;
    background: #003566;
    color: white;
    text-decoration: none;
    border-radius: 6px;
}

.button:hover {
    background: #001d3d;
}

/* BUTTON GROUP (nuevo) */

.button-group {
    margin-top: 15px;
}

.button-group .button {
    margin-right: 10px;
}

/* CONTACT */

.contact-section {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.contact-text {
    flex: 1;
}

.contact-image {
    flex: 1;
}

.contact-image img {
    width: 100%;
    border-radius: 12px;
}

/* FOOTER */

footer {
    background: #000814;
    color: white;
    text-align: center;
    padding: 20px;
}