:root {
    --basis-grijs:   #4A4A49;
    --accent-groen1: #94C11F;
    --accent-groen2: #3BAA35;
    --accent-goud:   #FFCE32;
    --tekst-wit:     #ffffff;
    --tekst-zwart:   #333333;
}

/* --- BASIS RESET --- */
* { box-sizing: border-box; }

/* OVERFLOW HIDDEN: Dit lost de grijze balk op mobiel op */
html, body {
    width: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden; 
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--basis-grijs);
    color: var(--tekst-wit);
    line-height: 1.6;
    scroll-behavior: smooth;
    /* Tekst selectie blokkeren voor veiligheid, input velden uitgezonderd */
    -webkit-user-select: none;
    user-select: none;
}
input, textarea { -webkit-user-select: text; user-select: text; }

/* --- HEADER & NAVIGATIE (Jouw originele instellingen) --- */
header {
    background-color: #333;
    border-bottom: 4px solid var(--accent-groen1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 60px;
}

.logo-area { display: flex; align-items: center; text-decoration: none; }
.logo-img { height: 55px; margin-right: 20px; width: auto; }
.logo-area h1 { font-size: 1.4rem; color: #fff; margin: 0; text-transform: uppercase; }
.logo-area h1 span { color: var(--accent-goud); }

/* --- RESPONSIVE HEADER --- */
@media (max-width: 1100px) {
    .header-container { flex-direction: column; padding: 0 20px; }
    .logo-area { margin-bottom: 30px; }
}

nav { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
nav a.nav-btn {
    display: inline-block;
    background-color: transparent;
    border: 2px solid var(--accent-groen1);
    color: var(--tekst-wit) !important;
    padding: 8px 18px;
    text-decoration: none !important;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.85rem;
    text-transform: uppercase;
    transition: all 0.3s ease;
}
nav a.nav-btn:hover { background-color: var(--accent-groen1); color: white !important; transform: translateY(-2px); }
nav a.nav-btn.active { background-color: var(--accent-goud) !important; border-color: var(--accent-goud) !important; color: var(--tekst-zwart) !important; }

/* --- PAGINA-BREDE SECTIES --- */
.hero {
    height: 50vh;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/groepsfoto.jpg') no-repeat center center/cover;
    display: flex; align-items: center; justify-content: center; text-align: center;
}
.hero-overlay { border: 3px solid var(--accent-goud); padding: 30px; background: rgba(0,0,0,0.7); max-width: 800px; margin: 0 20px; }

.content-wrapper { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.info-sectie { padding: 60px 0; }
.bg-dark { background-color: rgba(0,0,0,0.25); width: 100%; padding: 60px 0; border-top: 1px solid rgba(255,255,255,0.05); border-bottom: 1px solid rgba(255,255,255,0.05); }
.bg-dark h2 { color: var(--accent-goud); text-align: center; margin-bottom: 30px; }

/* --- AGENDA (Aangepast met vaste breedte) --- */
.agenda-container { background: rgba(0,0,0,0.3); padding: 25px; border-radius: 8px; }
.agenda-item { border-bottom: 1px solid rgba(255,255,255,0.1); padding: 15px 0; display: flex; gap: 20px; border-left: 4px solid var(--accent-goud); padding-left: 15px; margin-bottom: 15px; }
.agenda-item:last-child { border-bottom: none; }
.agenda-datum { flex: 0 0 110px; color: var(--accent-goud); font-weight: bold; font-size: 1.1rem; }
.agenda-info { flex: 1; }

/* --- FOTO GALERIJ (Aangepast naar kleinere thumbnails) --- */
.filter-container { margin-bottom: 30px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.filter-btn { background: rgba(255,255,255,0.05); color: white; border: 1px solid var(--accent-goud); padding: 8px 18px; cursor: pointer; border-radius: 20px; transition: 0.3s; font-size: 0.9rem; }
.filter-btn.active, .filter-btn:hover { background: var(--accent-goud); color: black; font-weight: bold; }

.album-sectie { display: none; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 10px; } /* Minmax aangepast voor kleinere foto's */
.album-sectie.active { display: grid; }
.foto-item { position: relative; overflow: hidden; border-radius: 6px; cursor: pointer; height: 100px; border: 1px solid rgba(255,255,255,0.1); } /* Hoogte kleiner gemaakt */
.foto-item img { width: 100%; height: 100%; object-fit: cover; transition: 0.4s; }
.foto-item:hover img { transform: scale(1.05); border-color: var(--accent-goud); }

#lightbox { position: fixed; z-index: 9999; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.92); display: none; align-items: center; justify-content: center; }
#lightbox img { max-width: 90%; max-height: 85%; border: 2px solid #fff; }
.lb-nav { position: absolute; color: white; font-size: 3rem; cursor: pointer; user-select: none; padding: 20px; }
.lb-close { position: absolute; top: 20px; right: 20px; font-size: 2.5rem; color: white; cursor: pointer; }

/* --- CONTACT FORMULIER --- */
.form-row { display: flex; gap: 15px; margin-bottom: 15px; }
.form-group { flex: 1; display: flex; flex-direction: column; }
.form-group label { color: var(--accent-goud); margin-bottom: 5px; font-size: 0.9rem; font-weight: bold; }
.form-group input, .form-group textarea { padding: 12px; background: rgba(255,255,255,0.05); border: 1px solid #444; color: white; border-radius: 4px; font-family: inherit; }

.history-text { column-count: 2; column-gap: 50px; text-align: justify; color: #eee; }

/* --- FOOTER --- */
footer { padding: 50px 0; background: #111; text-align: center; border-top: 4px solid var(--accent-groen1); }
.admin-link { color: var(--accent-goud); text-decoration: none; font-size: 0.85rem; opacity: 0.7; }
.admin-link:hover { opacity: 1; text-decoration: underline; }

/* =========================================================================
   MOBIELE WEERGAVE (Alleen voor telefoons zoals iPhone XS, raakt PC niet aan)
   ========================================================================= */
@media (max-width: 800px) { 
    .history-text { column-count: 1; } 
    
    .form-row { flex-direction: column; gap: 0; }
    .contact-form { padding: 20px !important; margin: 20px 0 !important; width: 100%; }
    
    .agenda-item { flex-direction: column; gap: 5px; padding-left: 10px; }
    .agenda-datum { flex: 0 0 auto; font-size: 1rem; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 5px; }
    
    .header-container { padding: 0 10px; }
    nav a.nav-btn { padding: 8px 12px; font-size: 0.75rem; margin-bottom: 5px; }
    
    .hero-overlay h2 { font-size: 1.5rem; }
}