/* Galerija specifični stilovi */

/* Hero sekcija galerije */
.gallery-hero {
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.9) 0%, rgba(44, 62, 80, 0.9) 100%),
                url('../images/slajder1.jpg') center/cover no-repeat;
    padding: 150px 0 80px;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.gallery-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 1.2rem;
    font-weight: 300;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Active link styling */
.nav-links a.active {
    color: var(--primary-color);
    position: relative;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
}

/* Filter sekcija */
.filter-section {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-btn {
    background-color: white;
    color: var(--dark-color);
    border: 2px solid var(--primary-color);
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    outline: none;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

/* Glavna galerija */
.main-gallery {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transition: all 0.4s ease;
    cursor: pointer;
    background-color: white;
}

.gallery-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.gallery-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

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

.gallery-item:hover .gallery-image img {
    transform: scale(1.15);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, 
        rgba(52, 152, 219, 0.85) 0%, 
        rgba(155, 89, 182, 0.85) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.4s ease;
    backdrop-filter: blur(2px);
}

.gallery-item:hover .image-overlay {
    opacity: 1;
}

.overlay-content {
    text-align: center;
    color: white;
    transform: translateY(30px);
    transition: transform 0.4s ease;
}

.gallery-item:hover .overlay-content {
    transform: translateY(0);
}

.overlay-content i {
    font-size: 2.5rem;
    margin-bottom: 10px;
    display: block;
}

.overlay-content span {
    font-size: 1.1rem;
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* Filter animacije */
.gallery-item.hide {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.gallery-item.show {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}

/* Modal za prikaz slika */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-modal {
    position: absolute;
    top: -50px;
    right: 0;
    color: white;
    font-size: 3rem;
    font-weight: 300;
    cursor: pointer;
    z-index: 2001;
    transition: color 0.3s ease;
}

.close-modal:hover {
    color: var(--primary-color);
}

#modalImage {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-navigation {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
    z-index: 2001;
    padding: 0 20px;
}

.modal-nav {
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--dark-color);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.modal-nav:hover {
    background-color: white;
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* Loading efekt */
.gallery-item.loading {
    opacity: 0.7;
}

.gallery-item.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 30px;
    height: 30px;
    border: 3px solid rgba(52, 152, 219, 0.3);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Lazy loading fade-in efekt */
.gallery-image img {
    transition: opacity 0.5s ease;
}

.gallery-image img[loading="lazy"] {
    opacity: 0;
}

.gallery-image img.loaded {
    opacity: 1;
}

/* Responsive design */
@media (max-width: 1200px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 25px;
    }
}

@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 20px;
    }
    
    .gallery-image {
        height: 250px;
    }
    
    .filter-buttons {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .gallery-hero {
        padding: 120px 0 60px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .filter-section {
        padding: 40px 0;
    }
    
    .main-gallery {
        padding: 60px 0;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 15px;
    }
    
    .gallery-image {
        height: 220px;
    }
    
    .modal-navigation {
        padding: 0 10px;
    }
    
    .modal-nav {
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
    
    .close-modal {
        top: -40px;
        font-size: 2.5rem;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .filter-buttons {
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }
    
    .filter-btn {
        width: 200px;
        text-align: center;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .gallery-image {
        height: 200px;
    }
    
    .overlay-content i {
        font-size: 2rem;
    }
    
    .overlay-content span {
        font-size: 1rem;
    }
    
    .modal-content {
        max-width: 95%;
        max-height: 85%;
    }
    
    .close-modal {
        top: -35px;
        right: -10px;
        font-size: 2rem;
    }
}

/* Dodaj smooth scrolling za filter promjene */
html {
    scroll-behavior: smooth;
}

/* Animacija za učitavanje stranice */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.gallery-item {
    animation: fadeInUp 0.6s ease forwards;
}

.gallery-item:nth-child(1) { animation-delay: 0.1s; }
.gallery-item:nth-child(2) { animation-delay: 0.2s; }
.gallery-item:nth-child(3) { animation-delay: 0.3s; }
.gallery-item:nth-child(4) { animation-delay: 0.4s; }
.gallery-item:nth-child(5) { animation-delay: 0.5s; }
.gallery-item:nth-child(6) { animation-delay: 0.6s; }
.gallery-item:nth-child(7) { animation-delay: 0.7s; }
.gallery-item:nth-child(8) { animation-delay: 0.8s; }
.gallery-item:nth-child(9) { animation-delay: 0.9s; }