/* AI-op-school Suite Master V17 */
:root {
    --primary-blue: #034989;
    --sidebar-orange: #c43c00; 
    --sidebar-green: #1b5e20;  
    --text-dark: #1a202c;
    --bg-light: #f7fafc;
    --white: #ffffff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Lexend', sans-serif; color: var(--text-dark); line-height: 1.6; background-color: var(--white); }

/* Navigatie */
nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.8rem 10%; background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    position: sticky; top: 0; z-index: 1000;
}
.nav-logo img { height: 65px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a { text-decoration: none; color: var(--primary-blue); font-weight: 600; font-size: 0.95rem; }
.btn-contact { background: var(--sidebar-orange); color: #fff !important; padding: 10px 22px; border-radius: 50px; text-decoration: none; font-weight: 700; }

/* Trust Bar */
.trust-bar { background: var(--primary-blue); color: white; padding: 1.2rem 10%; display: flex; justify-content: space-around; flex-wrap: wrap; gap: 20px; font-weight: 600; font-size: 0.9rem; }

/* Sections */
.hero { padding: 4rem 10%; display: flex; align-items: center; gap: 5%; background: var(--bg-light); }
.hero-text { flex: 1.2; }
.hero-image { flex: 0.8; }
.hero-image img { width: 50%; height: auto; border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
h1 { font-size: 2.8rem; color: var(--primary-blue); margin-bottom: 1.5rem; }
h1 span { color: var(--sidebar-orange); }

.grid-section { padding: 5rem 10%; background: var(--white); }
.grid-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.card { padding: 2.5rem; border-radius: 20px; border-top: 10px solid var(--primary-blue); box-shadow: 0 4px 15px rgba(0,0,0,0.05); }

.roi-section { padding: 5rem 10%; background: var(--bg-light); text-align: center; }
.roi-card { background: white; padding: 3rem; border-radius: 25px; max-width: 850px; margin: 0 auto; box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
.roi-slider { width: 100%; height: 12px; margin: 2rem 0; accent-color: var(--sidebar-orange); }
.roi-display { display: flex; justify-content: space-around; margin-top: 2rem; }
.roi-val { font-size: 2.2rem; font-weight: 700; color: var(--primary-blue); }

.text-section { padding: 5rem 10%; background: var(--white); display: flex; align-items: center; gap: 5%; }
.text-content { flex: 1; }
.text-image { flex: 1; text-align: center; }
.text-image img { width: 100%; max-width: 450px; border-radius: 15px; }

footer { padding: 3rem 10%; background: var(--white); border-top: 1px solid #eee; text-align: center; }
.footer-links { margin-top: 1rem; display: flex; justify-content: center; gap: 20px; }
.footer-links a { text-decoration: none; color: #666; font-size: 0.85rem; }

/* FIX VOOR OVERLAPPENDE KNOP IN HEADER */
.hero-text p {
    margin-bottom: 40px !important;
    display: block;
    line-height: 1.8;
}

/* Zorg dat de knop zich als een blok gedraagt */
.btn-contact {
    display: inline-block !important;
    margin-top: 10px;
}

/* --- VIDEO + TEKST SECTIE --- */
.action-section { padding: 5rem 10%; background: var(--white); display: flex; align-items: center; gap: 5%; flex-wrap: wrap; }
.action-video { flex: 1.2; min-width: 320px; }
.video-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 20px; border: 3px solid var(--primary-blue); box-shadow: 0 15px 40px rgba(3,73,137,0.15); }
.video-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }
.action-content { flex: 0.8; min-width: 300px; }
.usp-list { list-style: none; margin: 1.5rem 0; }
.usp-list li { margin-bottom: 15px; display: flex; align-items: flex-start; font-weight: 500; font-size: 1.1rem; }
.usp-list li::before { content: '✓'; color: var(--sidebar-green); font-weight: 900; margin-right: 12px; }

/* Fix voor slider thumb op mobiel */
input[type=range].roi-slider {
    -webkit-appearance: none;
    background: #e2e8f0;
    border-radius: 10px;
}

/* --- RESPONSIVE --- */
@media (max-width: 900px) {
    nav { flex-direction: column; padding: 1rem; }
    .hero, .text-section { flex-direction: column; text-align: center; }
    .hero-image, .text-image { margin-top: 2rem; width: 100%; }
}

@media (max-width: 600px) {
    .roi-display { flex-direction: column; gap: 20px; }
    .roi-card { padding: 1.5rem; }
    .roi-val { font-size: 1.8rem; }
    h1 { font-size: 2.1rem; }
    .action-section { text-align: center; }
}