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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #1a1a2e;
    background-image: linear-gradient(rgba(26, 26, 46, 0.85), rgba(26, 26, 46, 0.85));
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: #e0e0e0;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

nav {
    background-color: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #ecf0f1;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 3px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.nav-link {
    color: #ecf0f1;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.nav-link:hover,
.nav-link.active {
    color: #64b5f6;
    background-color: rgba(100, 181, 246, 0.15);
}

.section {
    display: none;
    padding: 100px 2rem 50px;
    min-height: 100vh;
}

.page {
    padding: 100px 2rem 50px;
    min-height: 100vh;
}

.section.active {
    display: block;
}

/* Home Section */
.home-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 2rem;
}

.home-content h1 {
    font-size: 3rem;
    color: #e0e0e0;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.intro-text {
    font-size: 1.1rem;
    color: #b0b0b0;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.6);
}

.home-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-image {
    width: 100%;
    max-width: 500px;
    height: 400px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.image-placeholder {
    width: 100%;
    max-width: 500px;
    height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Gallery Section */
.gallery-container {
    max-width: 1200px;
    margin: 0 auto;
}

.gallery-container h2 {
    font-size: 2.5rem;
    color: #e0e0e0;
    text-align: center;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.gallery-subtitle {
    text-align: center;
    color: #b0b0b0;
    font-size: 1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.category-card {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    aspect-ratio: 1;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    z-index: 1;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.category-card:hover::before {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.3) 0%, rgba(118, 75, 162, 0.3) 100%);
}

.category-card-content {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 1rem;
    position: relative;
    z-index: 2;
}

.category-card h3 {
    color: white;
    font-size: 1.5rem;
    text-align: center;
    margin: 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.images-view {
    display: none;
}

.images-view.active {
    display: block;
}

.back-button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    margin: 2rem auto 2rem auto;
    display: block;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.back-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }

    .category-card h3 {
        font-size: 1rem;
    }
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: #e0e0e0;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.tab-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    aspect-ratio: 4/3;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-item.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.gallery-item.loading::after {
    content: 'Betöltés...';
    color: white;
    font-weight: 600;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.page-btn {
    padding: 0.5rem 1rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    color: #e0e0e0;
    transition: all 0.3s ease;
}

.page-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.page-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Contact Section */
.contact-container {
    max-width: 800px;
    margin: 0 auto;
}

.contact-container h2 {
    font-size: 2.5rem;
    color: #e0e0e0;
    text-align: center;
    margin-bottom: 3rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.contact-icon {
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
}

.contact-icon svg {
    width: 28px;
    height: 28px;
}

.contact-details h3 {
    font-size: 1.2rem;
    color: #e0e0e0;
    margin-bottom: 0.25rem;
}

.contact-details p,
.contact-details a {
    color: #b0b0b0;
    text-decoration: none;
    font-size: 1.1rem;
}

.contact-details a:hover {
    color: #64b5f6;
    text-decoration: underline;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 10px;
}

.lightbox-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    padding: 10px;
    transition: color 0.3s ease;
}

.lightbox-close:hover {
    color: #64b5f6;
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 2rem;
    padding: 20px;
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s ease;
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.lightbox-prev {
    left: -80px;
}

.lightbox-next {
    right: -80px;
}

.lightbox-counter {
    position: absolute;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 1.2rem;
}

/* Footer */
footer {
    background-color: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    color: #e0e0e0;
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    color: white;
    font-size: 1.2rem;
    font-weight: 500;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-logo {
    max-width: 150px;
    max-height: 80px;
    object-fit: contain;
    border-radius: 10px;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        background-attachment: scroll;
    }

    .hamburger {
        display: flex;
    }

    .nav-container {
        padding: 0 1rem;
    }

    .category-tabs {
        justify-content: center;
        gap: 0.5rem;
        margin-bottom: 1rem;
    }

    .tab-btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(26, 26, 46, 0.98);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        gap: 1.5rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-links.active {
        left: 0;
    }

    .home-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .home-content h1 {
        font-size: 2rem;
        text-align: center;
    }

    .home-content {
        text-align: center;
    }


    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .image-placeholder {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .nav-links {
        flex-direction: column;
        align-items: center;
    }

    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }

    .category-tabs {
        gap: 0.5rem;
    }

    .tab-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}