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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.no-scroll {
    overflow: hidden;
}

header {
    background-color: #444;
    color: white;
    padding: 1rem 2rem;
    text-align: center;
}

.header-actions {
    margin-top: 0.5rem;
}

.all-photos-button {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
    font-size: 0.9rem;
}

.all-photos-button:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

main {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Albums grid */
.albums-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
}

.album {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.album:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.album-cover {
    height: 180px;
    background-size: cover;
    background-position: center;
    background-color: #e9e9e9;
}

.album h2 {
    padding: 1rem 1rem 0.5rem;
    font-size: 1.2rem;
}

.album p {
    padding: 0 1rem 1rem;
    color: #666;
    font-size: 0.9rem;
}

/* Gallery styles */
.gallery {
    animation: fadeIn 0.5s ease;
}

.gallery-header {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
}

.back-button {
    background-color: #444;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 1rem;
    transition: background-color 0.3s;
}

.back-button:hover {
    background-color: #1a252f;
}

/* Photos grid */
.photos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    perspective: 1000px; /* Add perspective for 3D effects */
}

/* Photos grid - Masonry style */
.photos-grid.masonry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    grid-auto-rows: 10px; /* Small base row size for precise layout */
    grid-gap: 1rem;
}

.photo-item {
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                box-shadow 0.4s ease;
    position: relative;
    grid-row-end: span 6; /* Default span for landscape images */
}

.photo-album-tag {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 0.8rem;
    opacity: 0.8;
    transition: opacity 0.3s;
    z-index: 2;
}

.photo-item:hover .photo-album-tag {
    opacity: 1;
}

.photo-album-info {
    margin-top: 15px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    text-align: center;
}

/* Explicitly set taller grid span for portrait images */
.photo-item.portrait {
    grid-row-end: span 12; /* Portrait images span more rows for better vertical display */
}

.photo-item.appear {
    animation: fadeInUp 0.6s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    backface-visibility: hidden;
}

.photo-item:hover {
    transform: translateY(-5px) rotateX(5deg) rotateY(-5deg);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    z-index: 1;
}

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

/* Photo viewer */
.photo-viewer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    perspective: 1500px;
}

.photo-viewer-content {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    transform-style: preserve-3d;
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.photo-viewer-content > img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
    border-radius: 5px;
    transform-origin: center center;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.photo-viewer img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
    border-radius: 5px;
    transform-origin: center center;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.photo-controls {
    position: absolute;
    top: -70px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0.8;
    transition: opacity 0.3s;
    z-index: 1010;
}

.photo-controls button img {
    transition: none;
}

.photo-viewer-content:hover .photo-controls {
    opacity: 1;
}

.nav-button {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    margin: 0 8px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.close-button {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    margin-left: 8px;
}

.download-button {
    font-size: 1.3rem;
}

.download-button i {
    display: none;
}

.download-button:hover {
    background-color: rgba(72, 199, 116, 0.3);
}

.nav-button:hover, .close-button:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.nav-button:active, .close-button:active {
    transform: translateY(0);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
}

/* SVG icon styling */
.icon {
    width: 24px;
    height: 24px;
    stroke: white;
    stroke-width: 2;
    filter: brightness(1.2); /* Makes icons a bit brighter */
}

.nav-button .icon, .close-button .icon {
    width: 24px;
    height: 24px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        backdrop-filter: blur(0);
    }
    to {
        opacity: 1;
        backdrop-filter: blur(10px);
    }
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes zoomIn {
    0% {
        opacity: 0;
        transform: scale(0.85) translateY(30px) rotateX(10deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0) rotateX(0);
    }
}

/* Loading and error states */
.loading {
    text-align: center;
    padding: 2rem;
    font-size: 1.2rem;
    color: #666;
}

.error {
    background-color: #f8d7da;
    color: #721c24;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .albums-container {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1rem;
    }

    .album-cover {
        height: 120px;
    }

    .photos-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }

    /* Make all photo items square on mobile */
    .photo-item {
        grid-row-end: span 8; /* Consistent span for square ratio */
        aspect-ratio: 4/3;
    }

    .photo-item.portrait {
        grid-row-end: span 8; /* Consistent span for square ratio */
        aspect-ratio: 3/4;
    }

    .photo-item img {
        height: 100%;
        object-fit: cover;
        object-position: center;
    }

    .photo-viewer-content {
        max-width: 95%;
    }

    .photo-viewer img {
        max-height: 75vh;
    }

    .photo-controls {
        top: -60px;
    }
}

@media (max-height: 500px) {
    .photo-viewer img {
        max-height: 70vh;
    }

    .photo-controls {
        top: -50px;
    }
}