/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Dracula Theme Colors */
    --background: #282a36;
    --current-line: #44475a;
    --foreground: #f8f8f2;
    --comment: #6272a4;
    --cyan: #8be9fd;
    --green: #50fa7b;
    --orange: #ffb86c;
    --pink: #ff79c6;
    --purple: #bd93f9;
    --red: #ff5555;
    --yellow: #f1fa8c;
    
    /* Loading progress (updated by JavaScript) */
    --loading-progress: 0%;
}

body {
    font-family: 'DM Sans', sans-serif;
    line-height: 1.6;
    color: var(--foreground);
    background-color: var(--background);
    max-width: 100%;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header Styles */
header {
    background-color: var(--current-line);
    padding: 0.75rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
}

nav li {
    margin: 0 1rem;
}

nav a {
    color: var(--foreground);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 3px;
    transition: all 0.3s ease;
    display: block;
    font-weight: 500;
}

nav a:hover {
    background-color: var(--comment);
    transform: translateY(-2px);
}

nav a.active {
    background-color: var(--purple);
    color: var(--background);
    font-weight: 700;
}

/* Main Content Styles */
main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    width: 100%;
}

section {
    display: none;
    height: calc(100vh - 100px);
    max-height: calc(100vh - 100px);
    transition: opacity 0.3s ease;
}

section.active {
    display: flex;
    flex-direction: column;
    justify-content: center;
    opacity: 1;
}

.photo-container {
    width: 100%;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    position: relative;
    overflow: hidden;
}

.photo-container img {
    max-width: 100%;
    max-height: calc(100vh - 200px);
    object-fit: contain;
    border: 1px solid var(--current-line);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.photo-info {
    margin: 1rem 0;
    color: var(--cyan);
    width: 100%;
    max-width: 800px;
}

.photo-info h2 {
    margin-bottom: 0.5rem;
    font-weight: 500;
    text-align: center;
}

.photo-info h2.today {
    color: var(--green);
}

#refresh-time {
    font-size: 0.85rem;
    color: var(--comment);
    font-style: italic;
}

/* Gallery Specific Styles */
.gallery-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0.75rem 0 1.5rem;
    padding: 0.25rem;
}

button {
    background-color: var(--purple);
    color: var(--background);
    border: none;
    padding: 0.75rem 1.25rem;
    margin: 0 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'DM Sans', sans-serif;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.nav-button {
    min-width: 110px;
    text-align: center;
}

button:hover {
    background-color: var(--pink);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

button:active {
    transform: translateY(1px);
}

button:disabled {
    background-color: var(--comment);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.7;
}

#photo-counter {
    padding: 0 1rem;
    font-weight: bold;
    color: var(--cyan);
}

/* Slider styles */
.slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--current-line);
    outline: none;
    margin: 0.75rem 0 1rem;
    transition: all 0.3s ease;
    position: relative;
}

/* Doughnut Loading Indicator */
/* Loading indicator */
.loading-doughnut {
    position: fixed;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    z-index: 1000;
    opacity: 1;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.loading-doughnut.hidden {
    opacity: 0;
}

.loading-doughnut svg {
    transform: rotate(-90deg);
    width: 100%;
    height: 100%;
}

.progress-track {
    stroke: rgba(128, 128, 128, 0.2);
}

.progress-indicator {
    stroke: var(--cyan);
    stroke-linecap: round;
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 10px;
    color: var(--cyan);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .progress-track {
        stroke: rgba(255, 255, 255, 0.1);
    }
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--purple);
    cursor: pointer;
    transition: all 0.3s ease;
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--purple);
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.slider::-webkit-slider-thumb:hover {
    background: var(--pink);
    transform: scale(1.2);
}

.slider::-moz-range-thumb:hover {
    background: var(--pink);
    transform: scale(1.2);
}

/* Gallery Layout Adjustments */
.gallery-controls {
    width: 100%;
    max-width: 800px;
    margin: 0.5rem auto 1rem;
}

/* Maximized Photo Overlay */
#maximize-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--background);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    overflow: auto;
    touch-action: auto;
}

#maximize-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

#maximize-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

#maximized-photo {
    max-width: 100%;
    max-height: 100vh;
    object-fit: contain;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
    transform-origin: center;
    touch-action: auto !important; /* Allow all touch actions */
}

.close-button {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--purple);
    color: var(--foreground);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
    margin: 0;
    z-index: 1001;
}

.close-button:hover {
    background-color: var(--pink);
    transform: scale(1.1);
}

.clickable {
    cursor: pointer;
    transition: transform 0.2s ease;
}

.clickable:hover {
    transform: scale(1.02);
}

/* Animation for new photos */
@keyframes highlight {
    0% { box-shadow: 0 0 20px rgba(0, 0, 0, 0.3); }
    50% { box-shadow: 0 0 30px var(--purple); }
    100% { box-shadow: 0 0 20px rgba(0, 0, 0, 0.3); }
}

.new-photo {
    animation: highlight 2s ease-in-out;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    nav ul {
        flex-direction: row; /* Keep horizontal on mobile */
    }
    
    nav li {
        margin: 0;
        flex: 1;
        text-align: center;
    }
    
    nav a {
        padding: 0.75rem 0.5rem;
        border-radius: 0;
    }
    
    .gallery-controls button {
        padding: 0.6rem 0.5rem;
        font-size: 0.85rem;
        min-width: 70px;
    }
    
    section {
        height: calc(100vh - 80px);
        max-height: calc(100vh - 80px);
    }
    
    .photo-info h2 {
        font-size: 1.2rem;
    }
    
    .photo-container img {
        max-height: calc(100vh - 180px);
    }
}

/* Version Footer */
#version-footer {
    text-align: center;
    font-size: 0.8rem;
    color: var(--comment);
    padding: 0.5rem;
    margin-top: 0.5rem;
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    opacity: 0.7;
    z-index: 100;
    cursor: pointer;
    transition: color 0.3s ease;
}

#version-footer:hover {
    color: var(--cyan);
    text-decoration: underline;
}

/* Changelog Page Styles */
.changelog-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1rem;
    background-color: var(--background);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.changelog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--current-line);
    padding-bottom: 1rem;
}

.changelog-header h1 {
    margin: 0;
    color: var(--purple);
}

.back-button {
    color: var(--foreground);
    background-color: var(--current-line);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    font-weight: 500;
}

.back-button:hover {
    background-color: var(--comment);
}

.version-entry {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--current-line);
}

.version-entry:last-child {
    border-bottom: none;
}

.version-number {
    color: var(--cyan);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.version-date {
    color: var(--comment);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.version-changes {
    list-style-type: none;
    padding-left: 0;
}

.version-changes li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    line-height: 1.5;
    color: var(--foreground);
}

.version-changes li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--pink);
    font-weight: bold;
}