/* Global Styles */
:root {
    --primary-color: #4a6fff;
    --secondary-color: #8c52ff;
    --dark-color: #2d3748;
    --light-color: #f7fafc;
    --gray-color: #e2e8f0;
    --success-color: #48bb78;
    --danger-color: #f56565;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f8f9fa;
}

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

/* Header Styles */
header {
    padding: 20px 0;
    border-bottom: 1px solid var(--gray-color);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    display: flex;
    flex-direction: column;
}

.logo h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0;
}

.logo p {
    font-size: 1.2rem;
    color: var(--secondary-color);
}

nav {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

/* Button Styles */
.btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: var(--box-shadow);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
    background: linear-gradient(135deg, #2d3748, #4a5568);
    color: white;
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

/* Homepage Styles */
.homepage {
    text-align: center;
    padding: 40px 0;
}

.homepage h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 40px;
}

.options-container {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.option-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    width: 350px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.option-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.option-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.option-card h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.option-card p {
    color: #666;
    margin-bottom: 20px;
}

/* Gallery Styles */
.gallery-container {
    padding: 20px 0 40px;
}

.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.gallery-header h2 {
    font-size: 2rem;
    color: var(--dark-color);
}

.filter-container {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 15px;
    border-radius: 20px;
    background-color: white;
    border: 1px solid var(--gray-color);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.gallery-item {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.item-image {
    width: 100%;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--gray-color);
}

.item-image img, .item-image svg {
    max-width: 100%;
    max-height: 100%;
    padding: 15px;
    object-fit: contain;
}

.item-info {
    padding: 15px;
}

.item-info h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.item-category {
    display: inline-block;
    font-size: 0.8rem;
    background-color: var(--gray-color);
    padding: 2px 8px;
    border-radius: 10px;
    color: var(--dark-color);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    visibility: hidden;
    opacity: 0;
    transition: var(--transition);
}

.modal-overlay.active {
    visibility: visible;
    opacity: 1;
}

.modal-container {
    background-color: white;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 600px;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.active .modal-container {
    transform: scale(1);
}

.modal-header {
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--gray-color);
}

.modal-header h3 {
    font-size: 1.5rem;
    color: var(--dark-color);
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #666;
    transition: var(--transition);
}

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

.modal-content {
    padding: 20px;
}

.preview-container {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    padding: 10px;
    background-color: var(--gray-color);
    border-radius: var(--border-radius);
}

.preview-container img,
.preview-container svg {
    max-width: 100%;
    max-height: 300px;
}

.download-options {
    margin-bottom: 20px;
}

.format-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.format-btn {
    padding: 8px 15px;
    border-radius: 20px;
    background-color: white;
    border: 1px solid var(--gray-color);
    cursor: pointer;
    transition: var(--transition);
}

.format-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.download-actions {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
}

/* Footer Styles */
footer {
    text-align: center;
    padding: 30px 0;
    color: #666;
    border-top: 1px solid var(--gray-color);
    margin-top: 30px;
}

.footer-links {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .options-container {
        flex-direction: column;
        align-items: center;
    }
    
    .gallery-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

    header {
        flex-direction: column;
        align-items: center;
    }
    
    nav {
        margin-top: 20px;
        flex-direction: column;
        align-items: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
}

/* Loading indicator */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
}

.loading-spinner {
    border: 4px solid var(--gray-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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