/* Reset en basis stijlen */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

p {
    font-weight: 300;
}

:root {
    --accent-color: #000000;
    --accent-color-solid: #000000;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Dark mode styles */
body.dark-mode {
    background-color: #1a1a1a;
    color: #f5f5f5;
}

body.dark-mode .container {
    background-color: #1a1a1a;
}

body.dark-mode header {
    background-color: #2c2c2c;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

body.dark-mode nav ul li a {
    color: #f5f5f5;
}

body.dark-mode .logo {
    color: #f5f5f5;
}

body.dark-mode .about,
body.dark-mode .contact {
    background-color: #2c2c2c;
}

body.dark-mode .event-card {
    background-color: #2c2c2c;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}

body.dark-mode .event-card h3 {
    color: #f5f5f5;
}

body.dark-mode .event-card p {
    color: #ccc;
}

body.dark-mode .contact-form input,
body.dark-mode .contact-form textarea {
    background-color: #1a1a1a;
    border-color: #444;
    color: #f5f5f5;
}

body.dark-mode .contact-form input::placeholder,
body.dark-mode .contact-form textarea::placeholder {
    color: #888;
}

/* Dark mode toggle button */
.dark-mode-btn {
    background: none;
    border: none;
    color: #2c3e50;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.5rem;
    transition: color 0.3s ease;
}

body.dark-mode .dark-mode-btn {
    color: #f5f5f5;
}

.dark-mode-btn:hover {
    color: var(--accent-color-solid);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    flex: 1;
}

/* Header en navigatie */
header {
    background-color: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    opacity: 0;
    transform: translateY(-20px);
    animation: fadeInDown 0.8s ease forwards;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    color: #000000;
    opacity: 0;
    animation: fadeIn 0.8s ease forwards 0.3s;
    transition: transform 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 2rem;
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

nav ul li:nth-child(1) { animation-delay: 0.4s; }
nav ul li:nth-child(2) { animation-delay: 0.5s; }
nav ul li:nth-child(3) { animation-delay: 0.6s; }
nav ul li:nth-child(4) { animation-delay: 0.7s; }

nav ul li a {
    text-decoration: none;
    color: #000000;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent-color-solid);
    transition: width 0.3s ease;
}

nav ul li a:hover::after {
    width: 100%;
}

/* Hero sectie */
.hero {
    height: 100vh;
    background-color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #2c3e50;
    position: relative;
    overflow: visible;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #ffffff;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #ffffff;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.9);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    backdrop-filter: blur(5px);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.avatar {
    width: 200px;
    height: 200px;
    overflow: hidden;
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.avatar:hover {
    transform: scale(1.05);
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
    color: #000000;
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--accent-color-solid);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.hero-content p {
    font-size: 1.2rem;
    color: #000000;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Page Navigation */
.page-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 3rem;
    padding: 2rem 0;
}

/* Over Mij sectie */
.about {
    padding: 120px 0 80px;
    background-color: #f9f9f9;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.about h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #000000;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 2rem;
}

.skills ul {
    list-style: none;
    margin-top: 1rem;
}

.skills li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
    color: #000000;
    transition: transform 0.3s ease;
}

.skills li:hover {
    transform: translateX(10px);
}

.skills li:before {
    content: "•";
    color: var(--accent-color-solid);
    position: absolute;
    left: 0;
    transition: transform 0.3s ease;
}

.skills li:hover:before {
    transform: scale(1.5);
}

/* Events sectie */
.portfolio {
    padding: 120px 0 80px;
    min-height: 100vh;
}

.portfolio h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #000000;
}

.event-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.event-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    cursor: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='black'><path d='M5 19l14-14M19 19V5H5'/></svg>") 12 12, auto;
}

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

.event-image {
    display: none;
}

.event-card h3 {
    padding: 1.5rem 1.5rem 0.5rem;
    color: #000000;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.event-card:hover h3 {
    color: var(--accent-color-solid);
}

.event-card p {
    padding: 0 1.5rem 1.5rem;
    color: #000000;
    font-size: 1.1rem;
}

/* Contact sectie */
.contact {
    padding: 120px 0 80px;
    background-color: #f9f9f9;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.contact h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #000000;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 2rem;
}

.contact-details {
    margin-top: 2rem;
}

.contact-details p {
    margin-bottom: 1rem;
    color: #000000;
}

.contact-details i {
    color: var(--accent-color-solid);
    margin-right: 1rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    color: #000000;
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #666666;
}

.contact-form button {
    background: var(--accent-color);
    color: white;
    padding: 1rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: opacity 0.3s ease;
}

.contact-form button:hover {
    opacity: 0.9;
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 2rem 0;
}

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

.social-links a {
    color: white;
    margin-left: 1rem;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--accent-color-solid);
}

/* Responsive design */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        text-align: center;
    }

    nav ul {
        margin-top: 1rem;
    }

    nav ul li {
        margin: 0 1rem;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-content h1 {
        font-size: 3rem;
    }

    .hero-content h2 {
        font-size: 1.5rem;
    }

    footer .container {
        flex-direction: column;
        text-align: center;
    }

    .social-links {
        margin-top: 1rem;
    }

    .page-navigation {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}

/* Language selector styles */
.language-selector {
    position: relative;
    display: inline-block;
}

.language-btn {
    background: none;
    border: none;
    color: #2c3e50;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    font-size: 1rem;
    transition: color 0.3s ease;
}

body.dark-mode .language-btn {
    color: #f5f5f5;
}

.language-btn:hover {
    color: var(--accent-color-solid);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 0.5rem;
    display: none;
    z-index: 1000;
}

body.dark-mode .language-dropdown {
    background-color: #2c2c2c;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.language-dropdown.show {
    display: block;
}

.language-dropdown button {
    display: block;
    width: 100%;
    padding: 0.5rem 1rem;
    border: none;
    background: none;
    text-align: left;
    cursor: pointer;
    color: #2c3e50;
    transition: background-color 0.3s ease;
    border-radius: 3px;
}

body.dark-mode .language-dropdown button {
    color: #f5f5f5;
}

.language-dropdown button:hover {
    background-color: #f5f5f5;
}

body.dark-mode .language-dropdown button:hover {
    background-color: #3c3c3c;
}

.language-dropdown button.active {
    background-color: var(--accent-color-solid);
    color: white;
}

/* Carousel styles */
.carousel {
    position: relative;
    width: 100%;
    margin-bottom: 1rem;
    overflow: visible;
    padding: 0 40px;
}

.carousel-container {
    display: flex;
    transition: transform 0.3s ease;
    width: 100%;
}

.carousel-slide {
    flex: 0 0 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: #fff;
    padding: 1rem;
    min-height: 300px;
    max-height: 800px;
}

.carousel-slide img,
.carousel-slide video {
    max-width: 100%;
    max-height: 700px;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
}

.carousel-slide img[src$=".svg"] {
    width: 100%;
    height: 300px;
    object-fit: contain;
}

.carousel-slide object {
    width: 100%;
    height: 600px;
    border: none;
    margin: 0;
    padding: 0;
}

body.dark-mode .carousel-slide {
    background-color: #2c2c2c;
}

.carousel-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    color: #000000;
    border: none;
    padding: 1rem;
    cursor: pointer;
    font-size: 3rem;
    transition: all 0.3s ease;
    z-index: 2;
    opacity: 0.7;
}

.carousel-button:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

.carousel-button.prev {
    left: 0;
}

.carousel-button.next {
    right: 0;
}

body.dark-mode .carousel-button {
    color: #ffffff;
}

body.dark-mode .carousel-button:hover {
    color: #cccccc;
}

/* Scroll Reveal Animation */
.reveal {
    position: relative;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Fade in from left */
.reveal-left {
    position: relative;
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s ease;
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

/* Fade in from right */
.reveal-right {
    position: relative;
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s ease;
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

/* Delay classes */
.delay-1 {
    transition-delay: 0.2s;
}

.delay-2 {
    transition-delay: 0.4s;
}

.delay-3 {
    transition-delay: 0.6s;
}

/* Contact details hover effects */
.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
}

.contact-item i {
    font-size: 1.5rem;
    color: #000000;
    transition: color 0.3s ease;
}

.contact-item:hover i {
    color: var(--accent-color-solid);
}

.contact-item a, .contact-item span {
    font-size: 1.1rem;
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--accent-color-solid);
}

/* Logo hover effect */
.logo:hover {
    transform: scale(1.05);
}

/* Featured Projects Section */
.featured-projects {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.featured-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

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

.featured-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.featured-content {
    padding: 1.5rem;
}

.featured-content h3 {
    color: #000000;
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.featured-content p {
    color: #666666;
    margin-bottom: 1.5rem;
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: #ffffff;
    color: #000000;
    text-align: center;
}

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

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #000000;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #666666;
}

.cta .btn {
    background: #000000;
    color: #ffffff;
    border: 2px solid #000000;
}

.cta .btn:hover {
    background: transparent;
    color: #000000;
}

/* Footer */
footer {
    background-color: #1a1a1a;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 40px;
}

.footer-logo .logo {
    color: white;
    margin-bottom: 1rem;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

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

.footer-links ul,
.footer-contact ul {
    list-style: none;
}

.footer-links ul li,
.footer-contact ul li {
    margin-bottom: 0.8rem;
}

.footer-links ul li a,
.footer-contact ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover,
.footer-contact ul li a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .featured-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-links ul li,
    .footer-contact ul li {
        margin-bottom: 0.5rem;
    }

    .cta h2 {
        font-size: 2rem;
    }

    .cta p {
        font-size: 1.1rem;
    }
}

.carousel-slide .slide-description {
    margin-top: 1rem;
    text-align: center;
    color: #666;
    font-size: 1rem;
    max-width: 80%;
    line-height: 1.4;
}

/* Data List styles */
.data-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 1rem;
}

.data-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.data-item:hover {
    transform: translateY(-5px);
}

.data-item img {
    max-width: 100%;
    height: 300px;
    object-fit: contain;
}

.data-description {
    text-align: center;
    color: #666;
    font-size: 1rem;
    max-width: 80%;
    line-height: 1.4;
    margin: 0;
}

body.dark-mode .data-item {
    background-color: #2c2c2c;
}

body.dark-mode .data-description {
    color: #ccc;
}

/* Data Section in About page */
.data-section {
    margin-top: 4rem;
    text-align: center;
}

.data-section h3 {
    margin-bottom: 2rem;
    color: #000000;
    font-size: 1.8rem;
}

body.dark-mode .data-section h3 {
    color: #f5f5f5;
}

@media (max-width: 768px) {
    .data-list {
        padding: 0.5rem;
    }
    
    .data-item {
        padding: 0.8rem;
    }
    
    .data-description {
        max-width: 95%;
    }
}