.slide {
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.gallery-item {
    display: none;
}

.gallery-item.active {
    display: block;
}

/* Geometrijska pozadina */
.bg-geometric-pattern {
    background: linear-gradient(135deg, 
        rgba(220, 38, 38, 0.1) 0%, 
        rgba(107, 114, 128, 0.05) 25%, 
        rgba(220, 38, 38, 0.08) 50%, 
        rgba(107, 114, 128, 0.1) 75%, 
        rgba(220, 38, 38, 0.05) 100%
    );
    position: relative;
}

.bg-geometric-pattern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(45deg, rgba(220, 38, 38, 0.1) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(107, 114, 128, 0.1) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(220, 38, 38, 0.05) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(107, 114, 128, 0.05) 75%);
    background-size: 60px 60px;
    background-position: 0 0, 0 30px, 30px -30px, -30px 0px;
    opacity: 0.7;
}

/* Modal stilovi */
.modal-overlay {
    backdrop-filter: blur(3px);
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    animation: slideUp 0.3s ease-out;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* Modal animacije */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Loading spinner */
.animate-spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Hover efekti */
.category-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

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

/* Form stilovi */
.form-input:focus {
    outline: none;
    ring: 2px;
    ring-color: #dc2626;
    border-color: transparent;
}

/* Responsive */
@media (max-width: 768px) {
    .category-btn {
        font-size: 14px;
        padding: 8px 16px;
    }
    
    .gallery-item {
        margin-bottom: 1rem;
    }
    
    .modal-content {
        margin: 1rem;
        max-height: calc(100vh - 2rem);
    }
}

/* Loading animacija za email */
.email-display {
    position: relative;
}

.email-display::after {
    content: "...";
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0%, 20% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}

/* Scrollbar stilovi za modal */
.modal-content::-webkit-scrollbar {
    width: 6px;
}

.modal-content::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.modal-content::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.modal-content::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* Disable scroll na body kad je modal otvoren */
body.modal-open {
    overflow: hidden;
}