:root {
    --primary: #e63946;    /* Zakelijk Rood */
    --dark: #2b2d42;       /* Diep Blauw/Grijs voor tekst */
    --light-bg: #f8f9fa;   /* Frisse achtergrond */
    --white: #ffffff;
    --border: #e9ecef;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background-color: var(--white);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Navigatie: Zakelijk & Clean */
nav {
    background: var(--white);
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 1000;
}

.nav-inner { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 24px; font-weight: 800; color: var(--dark); }
.logo span { color: var(--primary); }

.nav-links { display: flex; list-style: none; align-items: center; }
.nav-links li { margin-left: 30px; }
.nav-links a { text-decoration: none; color: var(--dark); font-weight: 600; font-size: 14px; }
.btn-nav { background: var(--primary); color: var(--white) !important; padding: 10px 20px; border-radius: 4px; }

/* Hero Section */
.hero { padding: 80px 0; background: linear-gradient(135deg, #fff 60%, var(--light-bg) 100%); }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.hero-text h1 { font-size: 3.5rem; line-height: 1.2; margin-bottom: 20px; color: var(--dark); }
.hero-text h1 span { color: var(--primary); }
.hero-text p { font-size: 1.2rem; margin-bottom: 30px; color: #6c757d; max-width: 550px; }

.btn-primary { background: var(--primary); color: #fff; padding: 16px 32px; text-decoration: none; border-radius: 4px; font-weight: 700; display: inline-block; margin-right: 15px; }
.btn-secondary { background: var(--dark); color: #fff; padding: 16px 32px; text-decoration: none; border-radius: 4px; font-weight: 700; display: inline-block; }

.hero-trust { margin-top: 40px; display: flex; gap: 20px; font-size: 14px; font-weight: 600; color: #495057; }

.hero-image img { width: 100%; height: auto; border-radius: 12px; }

/* USP Section */
.usp-section { padding: 60px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.usp-card h3 { font-size: 1.25rem; margin-bottom: 10px; color: var(--primary); }
.usp-card p { font-size: 0.95rem; color: #6c757d; }

/* Formulier Section */
.mockup-form-section { padding: 100px 0; background-color: var(--light-bg); }
.form-wrapper { background: var(--white); padding: 50px; border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); }
.form-intro { text-align: center; margin-bottom: 40px; }
.form-intro h2 { font-size: 2.2rem; margin-bottom: 10px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
input, select, textarea { width: 100%; padding: 15px; border: 1px solid #ced4da; border-radius: 4px; font-family: inherit; }
.btn-submit { width: 100%; background: var(--primary); color: #fff; border: none; padding: 20px; border-radius: 4px; font-size: 1.1rem; font-weight: 700; cursor: pointer; }
.form-note { text-align: center; margin-top: 15px; font-size: 14px; color: #6c757d; }

/* Footer */
footer { background: var(--white); padding: 80px 0 40px; border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.footer-contact p { margin-bottom: 10px; }
.footer-links ul { list-style: none; }
.footer-links a { text-decoration: none; color: var(--dark); }

@media (max-width: 768px) {
    .hero-grid, .grid-3, .form-grid, .footer-grid { grid-template-columns: 1fr; }
    .hero-text h1 { font-size: 2.5rem; }
}
/* Foto Grid Styling */
.expertise-gallery { padding: 80px 0; background: #fff; }
.photo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 40px; }
.photo-item { position: relative; overflow: hidden; border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.photo-item img { width: 100%; height: auto; display: block; transition: transform 0.3s ease; }
.photo-item:hover img { transform: scale(1.05); }
.photo-label { 
    position: absolute; bottom: 0; left: 0; width: 100%; 
    background: rgba(43, 45, 66, 0.85); color: #fff; 
    padding: 15px; font-weight: 600; text-align: center; 
}

/* Custom File Upload Styling */
.file-upload-wrapper { margin-bottom: 20px; }
input[type="file"] { display: none; } /* Verberg standaard knop */
.custom-file-upload {
    display: block;
    padding: 15px;
    border: 2px dashed #ced4da;
    background: #fdfdfd;
    text-align: center;
    cursor: pointer;
    border-radius: 4px;
    transition: 0.3s;
    color: #6c757d;
}
.custom-file-upload:hover {
    border-color: var(--primary);
    background: #fff5f5;
    color: var(--primary);
}

.center { text-align: center; }
.sub-title { color: #6c757d; margin-top: 10px; }

/* Mobiele aanpassing voor de foto's */
@media (max-width: 768px) {
    .photo-grid { grid-template-columns: 1fr; }
}