/* Base Styles */
:root {
    --dark-bg: #1E1E1E;
    --indigo-bg: #3C3C7E;
    --lime-accent: #B6F758;
    --blue-accent: #6EF7F1;
    --text-light: #F2F2F2;
    --text-dark: #333333;
    --gradient-bg: linear-gradient(135deg, var(--dark-bg) 0%, var(--indigo-bg) 100%);
    --gradient-accent: linear-gradient(135deg, var(--lime-accent) 0%, var(--blue-accent) 100%);
    --border-radius: 8px;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    line-height: 1.6;
    color: var(--text-light);
    background: var(--dark-bg);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Sora', sans-serif;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.8rem;
}

p {
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--lime-accent);
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    margin-bottom: 3rem;
}

.highlight {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Header Styles */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(30, 30, 30, 0.9);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    transition: var(--transition);
}

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

.logo img {
    height: 40px;
}

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

.nav-menu li {
    margin-left: 30px;
}

.nav-menu a {
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 8px 0;
    position: relative;
}

.nav-menu a:hover {
    color: var(--blue-accent);
}

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

.nav-menu a:hover::after {
    width: 100%;
}

.nav-cta {
    background: var(--gradient-accent);
    color: var(--dark-bg) !important;
    padding: 8px 16px !important;
    border-radius: var(--border-radius);
    font-weight: 600 !important;
}

.nav-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(110, 247, 241, 0.3);
}

.nav-cta::after {
    display: none;
}

.mobile-menu-button {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-button span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-light);
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero Section */
#hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    background: var(--gradient-bg);
    overflow: hidden;
    padding-top: 80px;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-text {
    flex: 1;
    max-width: 600px;
}

.hero-text p {
    font-size: 1.2rem;
    margin: 1.5rem 0 2rem;
}

.hero-image {
    flex: 1;
    position: relative;
}

.hero-image img {
    max-height: 600px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    animation: float 6s ease-in-out infinite;
}

.hero-shape {
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 150px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z' fill='%231E1E1E'/%3E%3C/svg%3E");
    background-size: cover;
    z-index: 1;
}

.cta-button {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--dark-bg);
    font-family: 'Sora', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    padding: 15px 30px;
    border-radius: var(--border-radius);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 5px 15px rgba(182, 247, 88, 0.3);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--blue-accent) 0%, var(--lime-accent) 100%);
    z-index: -1;
    transition: var(--transition);
    transform: scaleX(0);
    transform-origin: right;
}

.cta-button:hover {
    color: var(--dark-bg);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(182, 247, 88, 0.4);
}

.cta-button:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

/* Problem-Solution Section */
#probleem-oplossing {
    padding: 100px 0;
    background-color: #222230;
    position: relative;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.problem-box, .solution-box {
    padding: 40px;
    border-radius: var(--border-radius);
    background: rgba(30, 30, 30, 0.6);
    backdrop-filter: blur(10px);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.problem-box:hover, .solution-box:hover {
    transform: translateY(-10px);
}

.problem-box {
    border-left: 4px solid #FF5252;
}

.solution-box {
    border-left: 4px solid var(--lime-accent);
}

.problem-item, .solution-item {
    display: flex;
    margin-bottom: 20px;
}

.problem-item:last-child, .solution-item:last-child {
    margin-bottom: 0;
}

.icon {
    font-size: 1.5rem;
    margin-right: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.problem-item .icon {
    color: #FF5252;
}

.solution-item .icon {
    color: var(--lime-accent);
}

/* Program Section */
#programma {
    padding: 100px 0;
    background: var(--dark-bg);
    position: relative;
}

.program-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.program-card {
    padding: 40px 30px;
    border-radius: var(--border-radius);
    background: rgba(60, 60, 126, 0.2);
    backdrop-filter: blur(10px);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 1;
}

.program-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-bg);
    border-radius: var(--border-radius);
    z-index: -1;
    opacity: 0;
    transition: var(--transition);
}

.program-card:hover {
    transform: translateY(-15px) scale(1.03);
}

.program-card:hover::before {
    opacity: 1;
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

/* For Whom Section */
#voor-wie {
    padding: 100px 0;
    background: linear-gradient(135deg, #2A2A40 0%, #1E1E1E 100%);
}

.profiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.profile {
    background: rgba(30, 30, 30, 0.6);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.profile:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.profile-image {
    height: 250px;
    overflow: hidden;
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.profile-content {
    padding: 30px;
}

.profile-goal {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--dark-bg);
    font-weight: 600;
    padding: 5px 15px;
    border-radius: 50px;
    margin-bottom: 15px;
}

/* Science Section */
#wetenschap {
    padding: 100px 0;
    background-color: #2D2D4A;
    position: relative;
}

.science-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
    align-items: center;
}

.science-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.highlight-item {
    background: rgba(30, 30, 30, 0.6);
    border-radius: var(--border-radius);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.highlight-number {
    font-family: 'Sora', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--lime-accent);
    margin-bottom: 10px;
}

.download-button {
    display: inline-block;
    background: rgba(60, 60, 126, 0.3);
    color: var(--text-light);
    font-weight: 500;
    padding: 12px 25px;
    border-radius: var(--border-radius);
    border: 1px solid var(--blue-accent);
    transition: var(--transition);
}

.download-button:hover {
    background: var(--blue-accent);
    color: var(--dark-bg);
}

.science-graph img {
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Pricing Section */
#tarieven {
    padding: 100px 0;
    background: linear-gradient(135deg, #1E1E1E 0%, #2A2A40 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.pricing-card {
    background: rgba(30, 30, 30, 0.6);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    position: relative;
    transition: var(--transition);
    border-top: 4px solid transparent;
}

.pricing-card.featured {
    background: rgba(60, 60, 126, 0.3);
    transform: scale(1.05);
    border-top-color: var(--lime-accent);
}

.pricing-card:hover {
    transform: translateY(-15px);
}

.pricing-card.featured:hover {
    transform: translateY(-15px) scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    right: 30px;
    background: var(--lime-accent);
    color: var(--dark-bg);
    font-weight: 600;
    font-size: 0.8rem;
    padding: 5px 15px;
    border-radius: 50px;
}

.pricing-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.pricing-price {
    font-family: 'Sora', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-light);
    margin: 20px 0 10px;
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 400;
    opacity: 0.7;
}

.pricing-period {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 30px;
}

.pricing-features {
    list-style: none;
    margin: 30px 0;
    text-align: left;
}

.pricing-features li {
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}

.pricing-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--lime-accent);
}

.pricing-button {
    display: inline-block;
    background: transparent;
    color: var(--blue-accent);
    font-weight: 600;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    border: 2px solid var(--blue-accent);
    transition: var(--transition);
}

.pricing-button:hover {
    background: var(--blue-accent);
    color: var(--dark-bg);
}

/* Reviews Section */
#reviews {
    padding: 100px 0;
    background: var(--dark-bg);
}

.reviews-slider {
    position: relative;
    overflow: hidden;
    padding: 20px 0;
}

.reviews-track {
    display: flex;
    transition: transform 0.5s ease;
}

.review-card {
    flex: 0 0 100%;
    background: rgba(60, 60, 126, 0.2);
    border-radius: var(--border-radius);
    padding: 40px;
    margin: 0 15px;
    transition: var(--transition);
}

.review-stars {
    color: var(--lime-accent);
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.review-text {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 30px;
}

.review-author {
    display: flex;
    align-items: center;
}

.review-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 15px;
}

.author-info h4 {
    margin-bottom: 5px;
}

.author-info p {
    font-size: 0.9rem;
    opacity: 0.7;
    margin: 0;
}

.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
}

.prev-button, .next-button {
    background: transparent;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px;
    transition: var(--transition);
}

.prev-button:hover, .next-button:hover {
    color: var(--blue-accent);
}

.slider-dots {
    display: flex;
    margin: 0 20px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    margin: 0 5px;
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--blue-accent);
}

/* FAQ Section */
#faq {
    padding: 100px 0;
    background: linear-gradient(135deg, #2A2A40 0%, #1E1E1E 100%);
}

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

.faq-item {
    margin-bottom: 20px;
    border-radius: var(--border-radius);
    background: rgba(30, 30, 30, 0.6);
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question h3 {
    margin: 0;
    font-size: 1.2rem;
}

.faq-toggle {
    font-size: 1.5rem;
    color: var(--blue-accent);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 20px 20px;
    max-height: 1000px;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

/* Location Section */
#location {
    padding: 100px 0;
    background: #2D2D4A;
}

.location-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
}

.location-info {
    padding: 30px;
    background: rgba(30, 30, 30, 0.6);
    border-radius: var(--border-radius);
}

.address, .contact-info {
    margin-top: 20px;
}

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

/* Contact Section */
#contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #1E1E1E 0%, #2D2D4A 100%);
    position: relative;
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
    align-items: center;
}

.contact-benefits {
    margin-top: 30px;
}

.benefit-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.benefit-icon {
    font-size: 1.5rem;
    margin-right: 15px;
    color: var(--lime-accent);
}

.contact-form {
    background: rgba(30, 30, 30, 0.6);
    border-radius: var(--border-radius);
    padding: 40px;
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    color: var(--text-light);
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue-accent);
}

.form-checkbox {
    display: flex;
    align-items: center;
}

.form-checkbox input {
    width: auto;
    margin-right: 10px;
}

.form-checkbox label {
    margin: 0;
    font-weight: 300;
    font-size: 0.9rem;
}

.submit-button {
    display: block;
    width: 100%;
    background: var(--gradient-accent);
    color: var(--dark-bg);
    font-family: 'Sora', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    padding: 15px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.submit-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(110, 247, 241, 0.3);
}

/* Newsletter Section */
#newsletter {
    padding: 80px 0;
    background: #222230;
}

.newsletter-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(30, 30, 30, 0.6);
    border-radius: var(--border-radius);
    padding: 40px;
}

.newsletter-text {
    flex: 1;
    margin-right: 40px;
}

.newsletter-text h3 {
    margin-bottom: 10px;
}

.newsletter-form {
    display: flex;
    flex: 1;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    color: var(--text-light);
}

.newsletter-form button {
    background: var(--gradient-accent);
    color: var(--dark-bg);
    font-weight: 600;
    padding: 0 20px;
    border: none;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background: linear-gradient(135deg, var(--blue-accent) 0%, var(--lime-accent) 100%);
}

/* Footer */
footer {
    background: var(--dark-bg);
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 20px;
}

.footer-tagline {
    font-size: 0.9rem;
    opacity: 0.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.footer-column h4 {
    color: var(--blue-accent);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-column li {
    margin-bottom: 10px;
}

.footer-column a {
    color: var(--text-light);
    opacity: 0.7;
    transition: var(--transition);
}

.footer-column a:hover {
    opacity: 1;
    color: var(--lime-accent);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.language-selector {
    display: flex;
    align-items: center;
}

.language-selector span {
    margin-right: 10px;
    opacity: 0.7;
}

.language-selector a {
    color: var(--text-light);
    opacity: 0.7;
    margin-right: 10px;
    transition: var(--transition);
}

.language-selector a:hover,
.language-selector a.active {
    opacity: 1;
    color: var(--lime-accent);
}

.copyright {
    font-size: 0.9rem;
    opacity: 0.7;
    margin: 0;
}

/* Animations */
@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0);
    }
}

/* Responsive Styles */
@media (max-width: 1024px) {
    h1 {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 2.2rem;
    }
    
    .hero-content {
        flex-direction: column;
    }
    
    .science-content,
    .contact-content,
    .location-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .mobile-menu-button {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(30, 30, 30, 0.95);
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.4s ease;
    }
    
    .nav-menu.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
    
    .nav-menu li {
        margin: 15px 0;
    }
    
    .solutions-grid,
    .science-highlights {
        grid-template-columns: 1fr;
    }
    
    .newsletter-content {
        flex-direction: column;
    }
    
    .newsletter-text {
        margin-right: 0;
        margin-bottom: 20px;
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .language-selector {
        margin-bottom: 20px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-15px);
    }
    
    .review-card {
        padding: 30px 20px;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input {
        border-radius: var(--border-radius);
        margin-bottom: 10px;
    }
    
    .newsletter-form button {
        border-radius: var(--border-radius);
        padding: 12px;
    }
}