/* Stencil Gallery Pro - Modern CSS */

/* Variables */
:root {
    --sgp-primary: #6366f1;
    --sgp-primary-dark: #4f46e5;
    --sgp-secondary: #ec4899;
    --sgp-accent: #10b981;
    --sgp-bg: #f9fafb;
    --sgp-card-bg: #ffffff;
    --sgp-text: #1f2937;
    --sgp-text-light: #6b7280;
    --sgp-border: #e5e7eb;
    --sgp-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --sgp-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --sgp-radius: 1rem;
    --sgp-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark theme class support */
.sgp-dark-theme {
    --sgp-bg: #0f172a;
    --sgp-card-bg: #1e293b;
    --sgp-text: #f1f5f9;
    --sgp-text-light: #cbd5e1;
    --sgp-border: #334155;
    --sgp-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --sgp-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --sgp-bg: #0f172a;
        --sgp-card-bg: #1e293b;
        --sgp-text: #f1f5f9;
        --sgp-text-light: #cbd5e1;
        --sgp-border: #334155;
        --sgp-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
        --sgp-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
    }
}

/* Container */
.sgp-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Header Section */
.sgp-header {
    margin-bottom: 3rem;
    text-align: center;
}

.sgp-title {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--sgp-primary) 0%, var(--sgp-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    animation: sgp-gradient 3s ease infinite;
    background-size: 200% 200%;
}

@keyframes sgp-gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.sgp-subtitle {
    font-size: 1.125rem;
    color: var(--sgp-text-light);
    max-width: 800px;
    margin: 1rem auto 0;
    line-height: 1.6;
}

/* Controls Section */
.sgp-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
}

/* Search Box */
.sgp-search-wrapper {
    position: relative;
    flex: 1 1 300px;
    max-width: 500px;
}

.sgp-search {
    width: 100%;
    padding: 0.875rem 3rem 0.875rem 1.25rem;
    background: var(--sgp-card-bg);
    border: 2px solid var(--sgp-border);
    border-radius: var(--sgp-radius);
    font-size: 1rem;
    color: var(--sgp-text);
    transition: var(--sgp-transition);
}

.sgp-search:focus {
    outline: none;
    border-color: var(--sgp-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.sgp-search-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--sgp-text-light);
    pointer-events: none;
}

/* Category Filter */
.sgp-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.sgp-category-btn {
    padding: 0.5rem 1.25rem;
    background: var(--sgp-card-bg);
    border: 2px solid var(--sgp-border);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--sgp-text);
    cursor: pointer;
    transition: var(--sgp-transition);
    text-transform: capitalize;
}

.sgp-category-btn:hover {
    border-color: var(--sgp-primary);
    color: var(--sgp-primary);
    transform: translateY(-2px);
    box-shadow: var(--sgp-shadow);
}

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

/* Gallery Grid */
.sgp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* Gallery Item */
.sgp-item {
    position: relative;
    background: var(--sgp-card-bg);
    border-radius: var(--sgp-radius);
    overflow: hidden;
    box-shadow: var(--sgp-shadow);
    transition: var(--sgp-transition);
    animation: sgp-fadeIn 0.6s ease-out;
}

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

.sgp-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--sgp-shadow-lg);
}

/* Image Container */
.sgp-item-image {
    position: relative;
    width: 100%;
    height: 280px;
    background: #ffffff;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: var(--sgp-radius) var(--sgp-radius) 0 0;
}

.sgp-item-image svg,
.sgp-item-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1.5rem;
    transition: var(--sgp-transition);
}

.sgp-item:hover .sgp-item-image svg,
.sgp-item:hover .sgp-item-image img {
    transform: scale(1.1);
}

/* Loading State */
.sgp-item-image.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: sgp-shimmer 1.5s infinite;
}

@keyframes sgp-shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Error State */
.sgp-item-image.error {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fee;
}

.sgp-item-image.error::after {
    content: '⚠️ Failed to load image';
    color: #c00;
    font-size: 14px;
    text-align: center;
    padding: 20px;
}

.sgp-image-error {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    opacity: 0.3;
}

/* Item Info */
.sgp-item-info {
    padding: 1.5rem;
}

.sgp-item-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--sgp-text);
    margin-bottom: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sgp-item-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--sgp-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
    text-transform: capitalize;
    margin-bottom: 1rem;
}

/* Action Button */
.sgp-item-action {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: linear-gradient(135deg, var(--sgp-primary) 0%, var(--sgp-secondary) 100%);
    color: white;
    font-weight: 600;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--sgp-transition);
    text-decoration: none;
}

.sgp-item-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(99, 102, 241, 0.4);
}

.sgp-item-action svg {
    width: 20px;
    height: 20px;
}

.sgp-item-action.loading {
    opacity: 0.7;
    cursor: wait;
}

/* Load More Button */
.sgp-load-more-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 3rem;
}

.sgp-load-more {
    padding: 1rem 3rem;
    background: var(--sgp-primary);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--sgp-radius);
    cursor: pointer;
    transition: var(--sgp-transition);
    position: relative;
    overflow: hidden;
}

.sgp-load-more:hover {
    background: var(--sgp-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--sgp-shadow-lg);
}

.sgp-load-more:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.sgp-load-more.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: white;
    border-radius: 50%;
    animation: sgp-spin 0.8s linear infinite;
    top: 50%;
    left: 50%;
    margin-top: -10px;
    margin-left: -10px;
}

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

/* Empty State */
.sgp-empty {
    text-align: center;
    padding: 4rem 2rem;
}

.sgp-empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.sgp-empty-text {
    font-size: 1.25rem;
    color: var(--sgp-text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .sgp-title {
        font-size: 2rem;
    }
    
    .sgp-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 1.5rem;
    }
    
    .sgp-controls {
        flex-direction: column;
    }
    
    .sgp-search-wrapper {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .sgp-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .sgp-item-image {
        height: 220px;
    }
}

/* Accessibility */
.sgp-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus styles */
*:focus-visible {
    outline: 2px solid var(--sgp-primary);
    outline-offset: 2px;
}

/* Lightbox Styles */
.sgp-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 999999;
    display: none;
    animation: sgp-fadeIn 0.3s ease;
}

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

.sgp-lightbox-content {
    position: relative;
    width: 90vw;
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sgp-lightbox-image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    background: white;
    padding: 2rem;
    border-radius: var(--sgp-radius);
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
}

/* Lightbox Controls */
.sgp-lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: white;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--sgp-transition);
    backdrop-filter: blur(10px);
}

.sgp-lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: rotate(90deg);
}

/* Navigation Arrows */
.sgp-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--sgp-transition);
    backdrop-filter: blur(10px);
}

.sgp-lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.sgp-lightbox-prev {
    left: 20px;
}

.sgp-lightbox-next {
    right: 20px;
}

.sgp-lightbox-nav svg {
    width: 24px;
    height: 24px;
}

/* Lightbox Actions */
.sgp-lightbox-actions {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    background: rgba(0, 0, 0, 0.7);
    padding: 1rem 2rem;
    border-radius: 9999px;
    backdrop-filter: blur(10px);
}

.sgp-lightbox-action {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 9999px;
    color: white;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--sgp-transition);
    cursor: pointer;
}

.sgp-lightbox-action:hover {
    background: var(--sgp-primary);
    border-color: var(--sgp-primary);
    transform: translateY(-2px);
}

.sgp-lightbox-action svg {
    width: 20px;
    height: 20px;
}

/* Share Buttons */
.sgp-share-whatsapp {
    background: rgba(37, 211, 102, 0.2);
    border-color: #25d366;
}

.sgp-share-whatsapp:hover {
    background: #25d366;
}

.sgp-share-facebook {
    background: rgba(24, 119, 242, 0.2);
    border-color: #1877f2;
}

.sgp-share-facebook:hover {
    background: #1877f2;
}

/* Lightbox Info */
.sgp-lightbox-info {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(0, 0, 0, 0.7);
    padding: 1rem 1.5rem;
    border-radius: var(--sgp-radius);
    backdrop-filter: blur(10px);
}

.sgp-lightbox-title {
    color: white;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.sgp-lightbox-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--sgp-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
    text-transform: capitalize;
}

/* Loading state for lightbox */
.sgp-lightbox-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
}

.sgp-lightbox-loading::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top-color: white;
    border-radius: 50%;
    animation: sgp-spin 0.8s linear infinite;
}

/* Image error state */
.sgp-image-error {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: 3rem;
    color: #e5e7eb;
    background: #f3f4f6;
}

/* Mobile adjustments for lightbox */
@media (max-width: 768px) {
    .sgp-lightbox-image {
        padding: 1rem;
    }
    
    .sgp-lightbox-nav {
        width: 50px;
        height: 50px;
    }
    
    .sgp-lightbox-actions {
        flex-direction: column;
        padding: 0.75rem;
        gap: 0.5rem;
    }
    
    .sgp-lightbox-action {
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
    }
    
    .sgp-lightbox-info {
        top: auto;
        bottom: 120px;
        left: 50%;
        transform: translateX(-50%);
        text-align: center;
    }
}

/* Keyboard navigation hint */
.sgp-keyboard-hint {
    position: absolute;
    bottom: 10px;
    right: 10px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    display: none;
}

.sgp-lightbox.active .sgp-keyboard-hint {
    display: block;
}

/* Print styles */
@media print {
    .sgp-controls,
    .sgp-load-more-wrapper,
    .sgp-lightbox {
        display: none;
    }
}