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

html, body {
    height: 100%;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: #7A7971;
    color: white;
    transition: background-color 0.4s ease;
}

/* Header - hidden on desktop, visible on mobile */
.header {
    display: none;
    transition: background-color 0.4s ease;
}

.header-badge {
    font-size: 48px;
    font-weight: 300;
    color: #81C8B5;
    letter-spacing: 1px;
}

/* Gallery Container */
.gallery-container {
    height: calc(100vh - 150px);
    overflow-x: auto;
    overflow-y: hidden;
    display: flex;
    scroll-behavior: smooth;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.gallery-container::-webkit-scrollbar {
    height: 0;
    display: none;
}

.gallery {
    display: flex;
    align-items: flex-start;
    padding: 0 20px;
    gap: 3px;
    height: 100%;
}

/* Image Wrapper */
.image-wrapper {
    flex-shrink: 0;
    height: 100%;
    aspect-ratio: 3 / 4;
    scroll-snap-align: center;
    position: relative;
    background-color: #3a3a3a;
    overflow: hidden;
    cursor: pointer;
    transition: background-color 0.4s ease, transform 0.3s cubic-bezier(0.23, 1, 0.32, 1), box-shadow 0.3s ease;
    transform-style: preserve-3d;
    will-change: transform;
}

/* Desktop hover effect - Apple TV style */
@media (hover: hover) and (pointer: fine) {
    .image-wrapper {
        transform: perspective(800px) rotateX(0deg) rotateY(0deg) scale(1);
        transition: transform 0.15s ease-out, box-shadow 0.3s ease-out;
    }

    .image-wrapper:hover {
        z-index: 10;
        box-shadow: 0 14px 28px rgba(0,0,0,0.2);
    }
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.image-wrapper img.loaded {
    opacity: 1;
}

.image-wrapper.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 30px;
    height: 30px;
    margin: -15px 0 0 -15px;
    border: 2px solid rgba(255,255,255,0.1);
    border-top-color: rgba(255,255,255,0.4);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.lightbox.active .lightbox-content {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.lightbox-close:hover {
    opacity: 1;
}

.lightbox-close::before,
.lightbox-close::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 2px;
    background-color: white;
}

.lightbox-close::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.lightbox-close::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 20px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.lightbox-nav:hover {
    opacity: 1;
}

.lightbox-prev {
    left: 10px;
}

.lightbox-next {
    right: 10px;
}

.lightbox-nav::before {
    content: '';
    display: block;
    width: 20px;
    height: 20px;
    border-left: 2px solid white;
    border-bottom: 2px solid white;
}

.lightbox-prev::before {
    transform: rotate(45deg);
}

.lightbox-next::before {
    transform: rotate(-135deg);
}

.lightbox-counter {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 60px;
    height: 28px;
    display: flex;
    align-items: center;
    gap: 6px;
    z-index: 100;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}

.theme-toggle:hover {
    opacity: 0.7;
}

.theme-circle {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1.5px solid rgba(255,255,255,0.4);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.theme-circle.light {
    background-color: #7A7971;
}

.theme-circle.dark {
    background-color: #1a1a1a;
}

.theme-circle.active {
    transform: scale(1.2);
    border-color: white;
}

/* Grid Toggle Button */
.view-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 28px;
    height: 28px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.view-toggle:hover {
    opacity: 0.7;
}

.view-toggle-icon {
    display: grid;
    grid-template-columns: repeat(3, 4px);
    gap: 2px;
}

.view-toggle-icon span {
    width: 4px;
    height: 4px;
    background-color: white;
    border-radius: 1px;
    opacity: 0.8;
}

/* Scroll icon (shown in grid mode) */
.view-toggle.grid-active .view-toggle-icon {
    display: flex;
    gap: 2px;
}

.view-toggle.grid-active .view-toggle-icon span {
    width: 3px;
    height: 12px;
    border-radius: 1px;
}

/* Dark Mode */
body.dark-mode {
    background-color: #1a1a1a;
}

body.dark-mode .footer {
    background-color: #1a1a1a;
}

body.dark-mode .header {
    background-color: #1a1a1a;
}

body.dark-mode .image-wrapper {
    background-color: #2a2a2a;
}

body.dark-mode .footer-title {
    font-size: 24px;
    font-weight: 400;
    color: #378F27;
    letter-spacing: 0.5px;
}

body.dark-mode .issue-badge {
    font-size: 36px;
    font-weight: 300;
    color: #378F27;
    letter-spacing: 1px;
}

/* Grid View Styles */
body.grid-mode {
    overflow: auto;
}

body.grid-mode .gallery-container {
    display: block;
    height: auto;
    overflow: visible;
    padding-bottom: 100px;
}

body.grid-mode .gallery {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 8px;
    padding: 20px;
    height: auto;
}

body.grid-mode .image-wrapper {
    flex: 0 0 calc(14.285% - 7px);
    height: 0;
    padding-bottom: calc((14.285% - 7px) * 4 / 3);
    position: relative;
    aspect-ratio: unset;
}

body.grid-mode .image-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Footer */
.footer {
    height: 90px;
    background-color: #7A7971;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    position: fixed;
    bottom: 0;
    right: 0;
    left: 0;
    z-index: 100;
    transition: background-color 0.4s ease;
}

.footer-left {
    display: flex;
    flex-direction: column;
    gap: 4px;
    position: fixed;
    left: 20px;
}

.footer-title {
    font-size: 24px;
    font-weight: 400;
    color: #81C8B5;
    letter-spacing: 0.5px;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 11px;
    color: rgba(255,255,255,0.6);
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
}

.footer-right {
    display: flex;
    align-items: center;
    position: fixed;
    right: 20px;
}

.issue-badge {
    font-size: 36px;
    font-weight: 300;
    color: #81C8B5;
    letter-spacing: 1px;
}

/* Mobile styles */
@media (max-width: 768px) {
    .header {
        display: flex;
        justify-content: flex-end;
        align-items: center;
        padding: 30px 20px;
        height: 120px;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        background-color: #7A7971;
        z-index: 10;
    }

    .gallery-container {
        height: calc(100vh - 120px - 120px);
        height: calc(100dvh - 120px - 120px);
        margin-top: 120px;
        margin-bottom: 120px;
    }

    .gallery {
        padding: 0 20px;
        gap: 15px;
    }

    .image-wrapper {
        height: 100%;
        max-height: 100%;
        flex-shrink: 0;
        aspect-ratio: 3 / 4;
    }

    .image-wrapper img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .footer {
        height: 120px;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        gap: 8px;
        padding: 20px;
        position: fixed;
        bottom: 0;
        right: 0;
        left: 0;
        z-index:9999;
    }

    .footer-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        position: static;
    }

    .footer-title {
        font-size: 24px;
    }

    .footer-links {
        gap: 20px;
        font-size: 12px;
    }

    .footer-right {
        display: none;
    }

    .view-toggle {
        top: 46px;
        bottom: auto;
        left: 20px;
        right: auto;
    }

    .theme-toggle {
        top: 46px;
        right: auto;
        left: 58px;
        height: 28px;
    }

    body.grid-mode .gallery-container {
        margin-top: 120px;
        padding-bottom: 130px;
    }

    body.grid-mode .image-wrapper {
        flex: 0 0 calc(25% - 6px);
        padding-bottom: calc((25% - 6px) * 4 / 3);
    }
}