*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9fafb;
    color: #333;
    line-height: 1.7;
}

h1, h2, h3 {
    color: #111;
    margin-bottom: 16pt;
    text-align: center;
    font-weight: 700;
}

h1 {
    font-size: 32pt;
}

h2 {
    font-size: 24pt;
}

h3 {
    font-size: 18pt;
}

a {
    text-decoration: none;
    color: inherit;
}

header {
    background-color: #2c3e50;
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 999;
}

nav {
    position: relative;
    text-align: center;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

nav ul li {
    display: inline-block;
    margin: 0 1rem;
}

nav ul li a {
    padding: 0.5rem 1rem;
    color: #ecf0f1;
    font-weight: 500;
    border-radius: 6px;
    transition: background 0.3s, color 0.3s;
}

nav ul li a:hover, nav ul li a.active {
    background-color: #34495e;
    color: #fff;
}

.hamburger {
    display: none;
    cursor: pointer;
    margin-left: auto;
    background: none;
    border: none;
    padding: 0;
}

.hamburger div {
    width: 30px;
    height: 3px;
    background-color: #ecf0f1;
    margin: 6px auto;
    transition: all 0.4s ease;
}

main {
    max-width: 1000px;
    margin: 5% auto;
    padding: 2rem;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    text-align: center;
}

main p {
    margin-bottom: 1.5rem;
}

main figure {
    text-align: center;
    margin-top: 2rem;
}

main figure img {
    width: 100%;
    max-width: 300px;
    border-radius: 12px;
    box-shadow: 0px 10px 20px rgba(0,0,0,0.1);
    object-fit: cover;
    margin: 1rem;
}

footer {
    text-align: center;
    padding: 2rem;
    background-color: #2c3e50;
    color: #ecf0f1;
    font-size: 0.9rem;
    margin-top: 3rem;
}

.hobby-main {
    max-width: 1000px;
    margin: 5% auto;
    padding: 2rem;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    text-align: center;
}

.hobby-grid {
    display: grid;
    grid-template-columns: 1fr 1fr; 
    gap: 2rem; 
}

.hobby-voetbal, .hobby-basicfit {
    text-align: center;
}

.hobby-title {
    margin-bottom: 1.5rem;
}

.hobby-text {
    margin-bottom: 1.5rem;
}

.hobby-figure {
    text-align: center;
    margin-top: 2rem;
}

.hobby-img {
    width: 100%;
    max-width: 300px;
    border-radius: 12px;
    box-shadow: 0px 10px 20px rgba(0,0,0,0.1);
    object-fit: cover;
    margin: 1rem;
}

@media (max-width: 768px) {
    .hobby-grid {
        grid-template-columns: 1fr; 
    }
}