/**
 * Frontend Styles für Schuberts Portfolio Galerie
 */

:root {
    --spg-primary: #DDAF3A;
    --spg-dark: #2c2c2c;
    --spg-light: #f8f9fa;
    --spg-gap: 20px;
}

/* Container */
.spg-gallery-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Masonry Grid */
.spg-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spg-gap);
    grid-auto-flow: dense;
}

.spg-gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    background: #f0f0f0;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Intelligente Höhen basierend auf Aspect Ratio */
.spg-gallery-item[data-aspect-ratio] {
    grid-row-end: span var(--row-span);
}

/* Hochformat (Portrait) */
.spg-gallery-item[data-aspect-ratio*="1.3"],
.spg-gallery-item[data-aspect-ratio*="1.4"],
.spg-gallery-item[data-aspect-ratio*="1.5"] {
    --row-span: 2;
}

/* Sehr hohes Hochformat */
.spg-gallery-item[data-aspect-ratio*="1.6"],
.spg-gallery-item[data-aspect-ratio*="1.7"],
.spg-gallery-item[data-aspect-ratio*="1.8"],
.spg-gallery-item[data-aspect-ratio*="1.9"],
.spg-gallery-item[data-aspect-ratio*="2."] {
    --row-span: 3;
}

/* Querformat und Quadrat (Standard) */
.spg-gallery-item {
    --row-span: 1;
}

.spg-gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.spg-lightbox-trigger {
    display: block;
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    text-decoration: none;
}

.spg-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.spg-gallery-item:hover img {
    transform: scale(1.08);
}

/* Overlay */
.spg-item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(221, 175, 58, 0.9) 0%,
        rgba(139, 69, 19, 0.9) 100%
    );
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
}

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

.spg-zoom-icon {
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border: 2px solid #fff;
    border-radius: 50%;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.spg-gallery-item:hover .spg-zoom-icon {
    transform: scale(1);
}

/* Lightbox */
.spg-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99999;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.spg-lightbox.active {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.spg-lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
}

.spg-lightbox-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 80px;
}

.spg-lightbox-image-container {
    max-width: 100%;
    max-height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: spg-zoomIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.spg-lightbox-image {
    max-width: 100%;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

@keyframes spg-zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Navigation Buttons */
.spg-lightbox-close,
.spg-lightbox-prev,
.spg-lightbox-next {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    backdrop-filter: blur(10px);
}

.spg-lightbox-close:hover,
.spg-lightbox-prev:hover,
.spg-lightbox-next:hover {
    background: var(--spg-primary);
    border-color: var(--spg-primary);
    transform: scale(1.1);
}

.spg-lightbox-close {
    top: 20px;
    right: 20px;
}

.spg-lightbox-prev {
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.spg-lightbox-prev:hover {
    transform: translateY(-50%) scale(1.1);
}

.spg-lightbox-next {
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.spg-lightbox-next:hover {
    transform: translateY(-50%) scale(1.1);
}

/* Counter */
.spg-lightbox-counter {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

/* Loading State */
.spg-gallery-item.loading {
    background: linear-gradient(
        90deg,
        #f0f0f0 0%,
        #e0e0e0 50%,
        #f0f0f0 100%
    );
    background-size: 200% 100%;
    animation: spg-shimmer 1.5s infinite;
}

@keyframes spg-shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Responsive */
@media (max-width: 1200px) {
    .spg-gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --spg-gap: 15px;
    }
    
    .spg-gallery-container {
        padding: 30px 15px;
    }
    
    .spg-gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
    
    .spg-lightbox-content {
        padding: 40px 20px;
    }
    
    .spg-lightbox-close {
        top: 10px;
        right: 10px;
        width: 44px;
        height: 44px;
    }
    
    .spg-lightbox-prev,
    .spg-lightbox-next {
        width: 44px;
        height: 44px;
    }
    
    .spg-lightbox-prev {
        left: 10px;
    }
    
    .spg-lightbox-next {
        right: 10px;
    }
    
    .spg-zoom-icon {
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 480px) {
    .spg-gallery-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .spg-gallery-container {
        padding: 20px 10px;
    }
    
    .spg-lightbox-prev,
    .spg-lightbox-next {
        width: 40px;
        height: 40px;
    }
    
    .spg-lightbox-counter {
        bottom: 20px;
        font-size: 12px;
        padding: 8px 16px;
    }
}

/* Print Styles */
@media print {
    .spg-item-overlay,
    .spg-lightbox {
        display: none !important;
    }
    
    .spg-gallery-item {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* Accessibility */
.spg-lightbox-close:focus,
.spg-lightbox-prev:focus,
.spg-lightbox-next:focus {
    outline: 3px solid var(--spg-primary);
    outline-offset: 2px;
}

/* Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .spg-gallery-item,
    .spg-gallery-item img,
    .spg-item-overlay,
    .spg-lightbox,
    .spg-lightbox-image-container {
        transition: none !important;
        animation: none !important;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .spg-gallery-item {
        background: #1a1a1a;
    }
    
    .spg-gallery-item.loading {
        background: linear-gradient(
            90deg,
            #1a1a1a 0%,
            #2a2a2a 50%,
            #1a1a1a 100%
        );
        background-size: 200% 100%;
        animation: spg-shimmer 1.5s infinite;
    }
}