/* =========================================
   1. IMPORTS & VARIABELEN
   ========================================= */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;800&display=swap');

:root {
    --primary: #1a365d;       /* Deep Navy */
    --accent: #2563eb;        /* Royal Blue */
    --accent-light: #eff6ff;  /* Soft Blue */
    --bg-light: #ffffff;      
    --bg-alt: #f8fafc;        /* Gray sections */
    --text-dark: #1e293b;     
    --text-soft: #475569;     
    --border: #e2e8f0;        
    --footer-bg: #0f172a;     /* Dark Navy Footer */
    --radius: 24px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

/* =========================================
   2. BASIS & LAYOUT
   ========================================= */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.8;
}

.container {
    max-width: 1200px;
    margin: auto;
    padding: 0 40px;
}

/* =========================================
   3. NAVBAR & LOGO
   ========================================= */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    z-index: 1000;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

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

.logo-wrapper {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo-wrapper:hover { transform: translateY(-2px); }

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-soft);
    font-weight: 600;
    font-size: 0.95rem;
    transition: 0.3s;
    padding-bottom: 5px;
    border-bottom: 2px solid transparent;
}

/* Actieve Pagina State */
.nav-links a.active {
    color: var(--accent);
    border-bottom: 2px solid var(--accent);
}

.nav-links a:hover { color: var(--primary); }

.btn-nav {
    background: var(--primary);
    color: white !important;
    padding: 10px 24px !important;
    border-radius: 12px;
}

.btn-nav.active-btn {
    background: var(--accent) !important;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
}

/* =========================================
   4. CONTENT SECTIONS (STORYTELLING)
   ========================================= */
.hero {
    padding: 100px 0 60px;
    text-align: center;
    background: radial-gradient(circle at center, #f1f5f9 0%, #ffffff 100%);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 20px;
    letter-spacing: -1.5px;
}

.content-section { padding: 60px 0; }

.stagger-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 100px;
}

.stagger-grid.reverse { direction: rtl; }
.stagger-grid.reverse .text-content { direction: ltr; }

.img-placeholder {
    background: #e2e8f0;
    height: 400px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    font-weight: bold;
    box-shadow: var(--shadow);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.img-placeholder:hover {
    transform: scale(1.02);
}

.img-placeholder img { width: 100%; height: 100%; object-fit: cover; }

.badge {
    display: inline-block;
    padding: 5px 15px;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 50px;
    font-weight: 800;
    font-size: 0.75rem;
    margin-bottom: 20px;
    text-transform: uppercase;
}

h2 { font-size: 2.2rem; color: var(--primary); margin-bottom: 25px; }
p { font-size: 1.1rem; color: var(--text-soft); margin-bottom: 20px; }

/* =========================================
   5. SPECIAL BLOCKS (TIMELINE & MATRIX)
   ========================================= */
.full-width-block {
    background: var(--bg-alt);
    padding: 80px 40px;
    border-radius: 30px;
    text-align: center;
    margin: 60px 0;
    border: 1px solid var(--border);
}

.timeline-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.timeline-item {
    padding: 30px;
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.comparison-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    margin-top: 40px;
}

.comp-col {
    background: #f1f5f9;
    padding: 30px;
    border-radius: 20px;
    text-align: left;
}

.comp-col.highlight {
    background: #f0f9ff;
    border: 2px solid var(--accent);
}

.comp-col ul { list-style: none; padding-top: 15px; }
.comp-col ul li { margin-bottom: 10px; padding-left: 20px; position: relative; }
.comp-col ul li::before { content: "•"; color: var(--accent); position: absolute; left: 0; font-weight: bold; }

/* =========================================
   6. CONTACT BLOKKEN
   ========================================= */
.contact-layout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 60px 0;
}

.contact-block {
    background: white;
    padding: 40px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    text-align: center;
    transition: 0.3s;
}

.contact-block:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
}

/* =========================================
   7. LIGHTBOX (MODAL) POPUP
   ========================================= */
.modal {
    display: none; 
    position: fixed;
    z-index: 2000;
    padding-top: 50px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(8px);
}

.modal-content {
    margin: auto;
    display: block;
    width: auto;
    max-width: 90%;
    max-height: 85vh;
    border-radius: 15px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.close-modal {
    position: absolute;
    top: 30px;
    right: 40px;
    color: #ffffff;
    font-size: 50px;
    font-weight: 300;
    cursor: pointer;
    transition: 0.3s;
}

.close-modal:hover { color: var(--accent); }

/* =========================================
   8. FOOTER (HIGH CONTRAST)
   ========================================= */
footer {
    background: var(--footer-bg);
    color: #ffffff;
    padding: 80px 0 40px;
    text-align: center;
}

footer strong {
    display: block;
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: white;
}

footer p {
    color: #94a3b8;
    max-width: 600px;
    margin: 0 auto 15px;
}

/* =========================================
   9. MOBILE RESPONSIVENESS
   ========================================= */
@media (max-width: 900px) {
    .stagger-grid, .contact-layout, .comparison-box { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.5rem; }
    .nav-links { display: none; } 
    .modal-content { max-width: 95%; }
}