/* Base Styles */
:root {
    --primary-color: #2e7d32;
    --primary-light: #60ad5e;
    --primary-dark: #005005;
    --secondary-color: #455a64;
    --text-dark: #263238;
    --text-light: #eceff1;
    --background-light: #f5f5f5;
    --background-white: #ffffff;
    --accent-color: #ffc107;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--background-light);
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 1rem;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    position: relative;
    margin-bottom: 2rem;
}

h2:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    margin-bottom: 1.2rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

section {
    padding: 5rem 0;
}

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-light {
    background-color: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.read-more {
    display: inline-block;
    font-weight: 500;
    margin-top: 0.5rem;
    position: relative;
}

.read-more:after {
    content: '→';
    margin-left: 5px;
    transition: var(--transition);
}

.read-more:hover:after {
    margin-left: 10px;
}

/* Header Styles */
header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-text {
    color: var(--text-dark);
}

.plus {
    color: var(--primary-color);
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav-links a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-links a:hover:after,
.nav-links a.active:after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://images.unsplash.com/photo-1518156677180-95a2893f3e9f?ixlib=rb-1.2.1&auto=format&fit=crop&w=1500&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 8rem 0;
    position: relative;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* Intro Section */
.intro {
    background-color: white;
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
}

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

.feature-card {
    background-color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

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

/* Case Study Section */
.case-study {
    background-color: var(--secondary-color);
    color: white;
}

.case-study h2:after {
    background-color: var(--accent-color);
}

.case-content {
    max-width: 600px;
}

.case-study .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.case-image img {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

/* Benefits Section */
.benefits {
    background-color: var(--background-light);
}

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

.benefit-item {
    background-color: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.benefit-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.12);
}

/* Partners Section */
.partners {
    background-color: white;
    text-align: center;
}

.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin: 3rem 0;
}

.partner {
    padding: 1rem 2rem;
    background-color: var(--background-light);
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
}

.partner:hover {
    background-color: var(--primary-light);
    color: white;
    transform: scale(1.05);
}

/* CTA Section */
.cta {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 4rem 0;
}

.cta h2 {
    margin-bottom: 1rem;
}

.cta h2:after {
    display: none;
}

.cta .btn {
    margin-top: 1.5rem;
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: var(--text-light);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-column h3 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: var(--text-light);
}

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

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

/* Responsive Styles */
@media (max-width: 992px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .case-study .container {
        grid-template-columns: 1fr;
    }
    
    .case-content {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: white;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.open {
        right: 0;
    }
    
    .nav-links li {
        margin: 1.5rem 0;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero {
        padding: 6rem 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    section {
        padding: 3rem 0;
    }
}

@media (max-width: 576px) {
    .header-container {
        padding: 1rem;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .feature-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .partner-logos {
        gap: 1rem;
    }
    
    .partner {
        width: 45%;
        padding: 0.8rem;
    }
}

/* Additional styles for groene-daken.html */

.page-header {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 4rem 0;
}

.page-header h1 {
    margin-bottom: 0.5rem;
}

.intro-section {
    background-color: white;
    padding: 5rem 0;
}

.two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.two-columns.reverse {
    grid-template-columns: 1fr 1fr;
    direction: rtl;
}

.two-columns.reverse > * {
    direction: ltr;
}

.column-content {
    max-width: 100%;
}

.column-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.types-section {
    background-color: var(--background-light);
    padding: 5rem 0;
}

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

.type-card {
    background-color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    height: 100%;
}

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

.type-card ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.benefits-section {
    background-color: white;
    padding: 5rem 0;
}

.benefits-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.benefits-list {
    list-style: none;
}

.benefits-list li {
    margin-bottom: 2rem;
}

.benefits-list li strong {
    display: block;
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.waterretentie-section {
    background-color: var(--background-light);
    padding: 5rem 0;
}

.waterretentie-section ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.process-section {
    background-color: white;
    padding: 5rem 0;
}

.section-intro {
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
}

.process-steps {
    max-width: 800px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    margin-bottom: 3rem;
    position: relative;
}

.process-step:not(:last-child):after {
    content: '';
    position: absolute;
    top: 70px;
    left: 30px;
    height: calc(100% - 30px);
    width: 2px;
    background-color: var(--primary-light);
}

.step-number {
    background-color: var(--primary-color);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-right: 2rem;
    position: relative;
    z-index: 1;
}

.step-content {
    padding-top: 0.5rem;
}

.faq-section {
    background-color: var(--background-light);
    padding: 5rem 0;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 1.5rem;
}

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

.faq-item ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.cta-section {
    background-color: var(--primary-color);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (max-width: 992px) {
    .two-columns,
    .two-columns.reverse,
    .benefits-columns {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .column-image {
        order: -1;
    }
    
    .two-columns.reverse .column-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 3rem 0;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .process-step {
        flex-direction: column;
    }
    
    .step-number {
        margin-bottom: 1rem;
    }
    
    .process-step:not(:last-child):after {
        left: 30px;
        top: 60px;
        height: 30px;
    }
}

/* Additional styles for projecten.html */

.projects-intro {
    background-color: white;
    padding: 4rem 0 2rem;
}

.project-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.filter-btn {
    background-color: var(--background-light);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

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

.projects-grid {
    background-color: var(--background-light);
    padding: 3rem 0 5rem;
}

.projects {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.project-card {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    display: flex;
    flex-direction: column;
}

@media (min-width: 992px) {
    .project-card {
        flex-direction: row;
        height: 450px;
    }
}

.project-image {
    flex: 1;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-content {
    flex: 1;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-content h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.project-meta {
    font-size: 0.9rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.project-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.testimonials {
    background-color: white;
    padding: 5rem 0;
    text-align: center;
}

.testimonial-slider {
    max-width: 800px;
    margin: 3rem auto 0;
    position: relative;
}

.testimonial {
    background-color: var(--background-light);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin: 0 auto;
    position: relative;
    display: none;
}

.testimonial:before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 20px;
    font-size: 5rem;
    font-family: 'Playfair Display', serif;
    color: var(--primary-light);
    opacity: 0.3;
    line-height: 1;
}

.testimonial-content {
    font-style: italic;
    margin-bottom: 1.5rem;
}

.testimonial-author {
    text-align: right;
}

@media (max-width: 768px) {
    .project-card {
        flex-direction: column;
    }
    
    .project-image {
        height: 250px;
    }
    
    .testimonial {
        padding: 2rem 1.5rem;
    }
}

/* Additional styles for over-ons.html */

.about-intro {
    background-color: white;
    padding: 5rem 0;
}

.values-section {
    background-color: var(--background-light);
    padding: 5rem 0;
}

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

.value-card {
    background-color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

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

.team-section {
    background-color: white;
    padding: 5rem 0;
}

.team-grid {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-top: 3rem;
}

.team-member {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    background-color: var(--background-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.member-image {
    height: 100%;
}

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

.member-info {
    padding: 2rem;
}

.member-info h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.member-title {
    font-weight: 500;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.partners-section {
    background-color: var(--background-light);
    padding: 5rem 0;
}

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

.partner-card {
    background-color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    height: 100%;
}

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

.history-section {
    background-color: white;
    padding: 5rem 0;
}

.certifications-section {
    background-color: var(--background-light);
    padding: 5rem 0;
}

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

.certification-item {
    background-color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    height: 100%;
}

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

@media (max-width: 992px) {
    .team-member {
        grid-template-columns: 1fr;
    }
    
    .member-image {
        height: 300px;
    }
}

@media (max-width: 768px) {
    .values-grid,
    .partners-grid,
    .certifications-grid {
        grid-template-columns: 1fr;
    }
}

/* Additional styles for contact.html */

.contact-section {
    background-color: white;
    padding: 5rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    padding-right: 2rem;
}

.info-block {
    margin-bottom: 2rem;
}

.info-block h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.social-links {
    margin-top: 2rem;
}

.social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
}

.social-icon {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--background-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.social-icon:hover {
    background-color: var(--primary-light);
    color: white;
}

.contact-form-container {
    background-color: var(--background-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.contact-form {
    margin-top: 1.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(46, 125, 50, 0.2);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
}

.checkbox-group input {
    width: auto;
    margin-right: 10px;
    margin-top: 5px;
}

.checkbox-group label {
    font-weight: 400;
    font-size: 0.9rem;
}

.map-section {
    background-color: var(--background-light);
    padding: 5rem 0;
}

.map-container {
    margin-top: 2rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.map-placeholder {
    background-color: #e0e0e0;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
    font-style: italic;
}

.partners-section {
    background-color: white;
    padding: 5rem 0;
    text-align: center;
}

@media (max-width: 992px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-info {
        padding-right: 0;
    }
}

@media (max-width: 768px) {
    .social-icons {
        flex-wrap: wrap;
    }
    
    .social-icon {
        width: calc(50% - 0.5rem);
        text-align: center;
    }
    
    .map-placeholder {
        height: 300px;
    }
}