/* =========================
   ROOT
   ========================= */
:root {
    --bg: #f5f7fa;
    --text: #1f2933;
    --dark: #1f2933;
    --accent: #f59e0b;
    --white: #ffffff;
}

* {
    box-sizing: border-box;
}

/* =========================
   BODY
   ========================= */
body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 18px;
    line-height: 1.6;

    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* =========================
   MAIN LAYOUT
   ========================= */
main {
    flex: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 20px;
}

section {
    margin-bottom: 40px;
}

/* =========================
   TYPOGRAFIE
   ========================= */
h1, h2 {
    text-align: center;
    margin: 0 0 20px 0;
}

h1 {
    font-size: 38px;
}

h2 {
    font-size: 26px;
    display: inline-block;
    border-bottom: 3px solid var(--accent);
    padding-bottom: 6px;
}

/* =========================
   NAVIGATIE
   ========================= */
nav {
    background: var(--dark);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 15px 20px;

    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-title {
    color: var(--white);
    font-weight: bold;
    font-size: 20px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
    margin: 0;
    padding: 0;
}

nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: bold;
    transition: 0.2s;
}

nav a:hover,
nav a.active {
    color: var(--accent);
}

.hamburger {
    display: none;
    font-size: 28px;
    background: none;
    border: none;
    color: var(--white);
}

/* =========================
   HERO (BELANGRIJK FIX)
   ========================= */
.hero {
    position: relative;
    width: 100%;
    height: 40vh; /* BELANGRIJK: voorkomt te grote beelden */
    overflow: hidden;
}

.hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);

    background: rgba(31, 41, 51, 0.65);
    color: white;
    padding: 20px 30px;
    border-radius: 10px;
    text-align: center;
}

/* =========================
   ALGEMENE AFBEELDINGEN (BELANGRIJK FIX)
   ========================= */
img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
}

/* =========================
   LINKS
   ========================= */
a {
    color: var(--accent);
    font-weight: bold;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* =========================
   LINKS BOX
   ========================= */
.link-box {
    max-width: 800px;
    margin: 0 auto;
    padding: 25px;
    border: 3px solid var(--accent);
    border-radius: 12px;
    background: var(--white);
}

/* =========================
   SCHEMA GRID
   ========================= */
.schema-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.schema-item {
    background: var(--white);
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
}

/* =========================
   CONTACT
   ========================= */
.contact-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

/* =========================
   LIGHTBOX
   ========================= */
#lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

#lightbox img {
    max-width: 90%;
    max-height: 90%;
    border: 4px solid var(--accent);
}

/* =========================
   FOOTER
   ========================= */
footer {
    background: var(--dark);
    color: white;
    text-align: center;
    padding: 20px;
}

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

    body {
        font-size: 16px;
    }

    .hero {
        height: 30vh; /* EXTRA FIX voor kleine schermen */
    }

    nav ul {
        display: none;
        flex-direction: column;
        background: var(--dark);
        width: 100%;
        padding: 15px 0;
    }

    nav ul.show {
        display: flex;
    }

    .hamburger {
        display: block;
    }

    .schema-grid {
        grid-template-columns: 1fr;
    }
}
.video-section {
    max-width: 600px;
    margin: 0 auto;
}

.video-section h2 {
    margin-bottom: 20px;
}

.video-section video {
    width: 100%;
    display: block;
}