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

:root {
    --primary: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary: #06b6d4;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border: #e5e7eb;
    --success: #10b981;
    --error: #ef4444;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-white);
}

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

/* Navigation */
.navbar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
}

.nav-brand .logo {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: 0.3s;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        background: var(--bg-white);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        border-bottom: 1px solid var(--border);
    }

    .nav-menu a {
        display: block;
        padding: 1rem;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 100px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero .tagline {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .hero {
        padding: 60px 20px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero .tagline {
        font-size: 1rem;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-light);
    color: white;
}

.btn-primary:hover {
    background: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Services Section */
.services {
    padding: 80px 20px;
    background: var(--bg-light);
}

.services h2,
.expertise h2,
.contact h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
    text-align: center;
}

.section-intro {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-card.featured {
    border: 2px solid var(--primary-light);
    transform: scale(1.02);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 1rem;
    flex-grow: 1;
}

.tarief {
    font-weight: 700;
    color: var(--secondary);
    font-size: 1.1rem;
    margin: 1rem 0 !important;
}

.features {
    list-style: none;
    margin: 1rem 0;
}

.features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

.service-note {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
}

.service-note a {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 600;
}

.service-note a:hover {
    text-decoration: underline;
}

/* Expertise Section */
.expertise {
    padding: 80px 20px;
    background: var(--bg-white);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.expertise-item {
    padding: 2rem;
    border-left: 4px solid var(--primary-light);
    background: var(--bg-light);
    border-radius: 4px;
}

.expertise-item h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.expertise-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Contact Section */
.contact {
    padding: 80px 20px;
    background: var(--bg-light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

.contact-form {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-note {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 1rem !important;
}

.dialog-backdrop:not([hidden]) {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.5);
}

.contact-dialog {
    width: 100%;
    max-width: 480px;
    max-height: 100%;
    overflow-y: auto;
    padding: 2rem;
    border-radius: var(--radius);
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
}

.contact-dialog h2 {
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.contact-dialog p {
    margin-bottom: 1.5rem;
    overflow-wrap: anywhere;
}

.contact-info {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.contact-info h3 {
    color: var(--primary);
    margin-bottom: 2rem;
    font-size: 1.4rem;
}

.contact-item {
    margin-bottom: 2rem;
}

.contact-item strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.reveal-btn {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.reveal-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.reveal-content {
    margin-top: 0.5rem;
    padding: 0.75rem;
    background: var(--bg-light);
    border-radius: var(--radius);
    border-left: 4px solid var(--success);
}

.reveal-content a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.reveal-content a:hover {
    text-decoration: underline;
}

.kvk-info {
    font-weight: 700;
    color: var(--primary-light);
}

/* Footer */
.footer {
    background: var(--primary);
    color: white;
    padding: 2rem 20px;
    text-align: center;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
}

@media (max-width: 768px) {
    .footer .container {
        flex-direction: column;
    }

    .footer-links {
        justify-content: center;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .contact-form,
    .btn {
        display: none;
    }
}