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

/* Body */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    line-height: 1.6;
}

/* Header */
header {
    background: #003366;
    padding: 15px;
    text-align: center;
}

header img {
    border-radius: 10px;
}

/* Navigation */
.nav {
    background: #003366;
    padding: 10px 0;
}

.menu {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 25px;
}

.menu a {
    text-decoration: none;
    color: white;
    font-weight: bold;
    transition: 0.3s;
}

.menu a:hover {
    color: #ffcc00;
}

/* Main */
main {
    padding: 30px;
    max-width: 1000px;
    margin: auto;
}

/* Sections */
section {
    background: white;
    padding: 20px;
    margin-bottom: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

section h1,
section h2 {
    color: #003366;
    margin-bottom: 15px;
}

/* Introduction */
#introduction img {
    display: block;
    margin: 15px auto;
    border-radius: 10px;
}

/* Buttons */
.button {
    display: inline-block;
    margin-top: 15px;
    padding: 10px 20px;
    background: #003366;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: 0.3s;
    border: none;
    cursor: pointer;
}

.button:hover {
    background: #ffcc00;
    color: black;
}

/* Forms */
form {
    margin-top: 15px;
}

textarea,
input[type="email"] {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border-radius: 5px;
    border: 1px solid #ccc;
}

/* Categories */
#categories ul {
    list-style: none;
    margin-top: 10px;
}

#categories li {
    margin: 8px 0;
}

#categories a {
    text-decoration: none;
    color: #003366;
    font-weight: bold;
    transition: 0.3s;
}

#categories a:hover {
    color: #ffcc00;
}

/* Footer */
footer {
    background: #003366;
    color: white;
    text-align: center;
    padding: 20px;
}

footer ul {
    list-style: none;
    margin-top: 10px;
}

footer li {
    display: inline;
    margin: 0 10px;
}

footer a {
    color: white;
    text-decoration: none;
    transition: 0.3s;
}

footer a:hover {
    color: #ffcc00;
}

/* Responsive */
@media (max-width: 768px) {

    .menu {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    main {
        padding: 15px;
    }
}