/* Easter Theme - Variable definitions */
:root {
    /* Colors */
    --bg-color: #fff9f0; /* Soft cream */
    --surface-color: #ffffff;
    --text-color: #5d4037; /* Chocolate brown */
    --text-muted: #8d6e63;
    --primary-color: #ffb3ba; /* Pastel Pink */
    --accent-color: #baffc9;  /* Pastel Green */
    --border-color: #bae1ff;  /* Pastel Blue */
    --header-bg: #ffffba;    /* Pastel Yellow */
    
    /* Fonts */
    --font-heading: 'Cinzel', serif;
    --font-body: 'Roboto', sans-serif;
    
    /* Spacing */
    --spacing-sm: 0.5rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* Dark Theme Overrides (Experimental Easter Night) */
:root[data-theme="dark"] {
    --bg-color: #2c3e50;
    --surface-color: #34495e;
    --text-color: #ecf0f1;
    --text-muted: #bdc3c7;
    --primary-color: #9b59b6;
    --accent-color: #1abc9c;
    --border-color: #7f8c8d;
    --header-bg: #2c3e50;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-body);
    line-height: 1.6;
    transition: var(--transition);
    overflow-x: hidden;
}

header {
    background-color: var(--header-bg);
    border-bottom: 5px dotted var(--primary-color);
    padding: var(--spacing-md) 0;
    text-align: center;
    box-shadow: 0 4px 15px rgba(255, 179, 186, 0.3);
}

.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.main-nav {
    margin-top: var(--spacing-sm);
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.main-nav a {
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.1rem;
    padding: 5px 15px;
    border-radius: 20px;
    background-color: var(--surface-color);
    border: 2px solid var(--border-color);
}

.main-nav a.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

.theme-toggle {
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
    user-select: none;
}

.theme-toggle:hover {
    color: var(--accent-color);
    transform: rotate(15deg) scale(1.1);
}

header h1 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    font-size: 2.5rem;
    letter-spacing: 0.2rem;
    text-transform: uppercase;
}

.logo {
    font-family: 'Pirata One', system-ui;
    font-size: 4rem !important;
    text-transform: lowercase !important;
    letter-spacing: 0.5rem !important;
    position: relative;
    display: inline-block;
    color: var(--primary-color) !important;
    animation: bunny-hop 2s ease-in-out infinite;
    text-shadow: 2px 2px 0px var(--border-color);
}

@keyframes bunny-hop {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

main {
    max-width: 800px;
    margin: var(--spacing-lg) auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 10;
}

a {
    color: var(--text-muted);
    text-decoration: underline wavy var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--primary-color);
    text-decoration: underline wavy var(--accent-color);
}

/* Easter Egg Constellation */
.egg-constellation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.egg {
    position: absolute;
    width: 30px;
    height: 42px;
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    opacity: 0.4;
    filter: blur(1px);
}

@keyframes float-egg {
    0% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(var(--tx1), var(--ty1)) rotate(120deg); }
    66% { transform: translate(var(--tx2), var(--ty2)) rotate(240deg); }
    100% { transform: translate(0, 0) rotate(360deg); }
}

/* Gallery Styles (Easter Variant) */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border: 3px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    aspect-ratio: 1 / 1;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover {
    border-color: var(--primary-color);
    transform: scale(1.02) rotate(2deg);
    box-shadow: 0 5px 15px rgba(255, 179, 186, 0.3);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    padding: 10px;
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-item-info {
    transform: translateY(0);
}

.gallery-item-info h3 {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.gallery-item-info p {
    font-size: 0.7rem;
    color: #ccc;
}

/* Lightbox Styles */
.lightbox-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.lightbox-content {
    max-width: 90%;
    max-height: 80%;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 100%;
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 30px rgba(139, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: #fff;
    font-size: 3rem;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox-close:hover {
    color: var(--accent-color);
}

.lightbox-caption {
    margin-top: 20px;
    text-align: center;
    color: #fff;
    max-width: 800px;
}

.lightbox-caption h3 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    margin-bottom: 10px;
}

.lightbox-caption a {
    color: var(--accent-color);
    font-weight: bold;
}

.page-title {
    font-family: var(--font-heading);
    text-align: center;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.page-description {
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: var(--spacing-lg);
}

.post-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: 4px;
    transition: var(--transition);
}

.post-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(139, 0, 0, 0.1);
}

.post-title {
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-sm);
}

.post-date {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.post-content {
    margin-top: var(--spacing-md);
}

/* Markdown specific styles */
.post-content h1, .post-content h2, .post-content h3 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.post-content ul {
    list-style-position: inside;
    margin-bottom: 1rem;
}

.post-content p {
    margin-bottom: 1rem;
}

.post-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.post-content pre {
    background: #000;
    border-left: 3px solid var(--primary-color);
    padding: 1rem;
    overflow-x: auto;
    margin-bottom: 1rem;
}

/* KaTeX Responsive Fix */
.katex-display {
    overflow-x: auto;
    overflow-y: hidden;
    padding: 1rem 0;
    margin: 1rem 0;
    /* Custom scrollbar for better aesthetics */
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) transparent;
}

.katex-display::-webkit-scrollbar {
    height: 4px;
}

.katex-display::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 10px;
}

.post-content code {
    font-family: 'Courier New', Courier, monospace;
    color: var(--accent-color);
}

footer {
    text-align: center;
    padding: var(--spacing-lg) 0;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--border-color);
}

.loading {
    text-align: center;
    padding: var(--spacing-lg);
    font-style: italic;
    color: var(--text-muted);
}

.back-link {
    display: inline-block;
    border: 1px solid var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    font-family: var(--font-heading);
}

.back-link:hover {
    background-color: var(--primary-color);
    color: #fff;
}

.floating-next-post {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--header-bg);
    border: 2px solid var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-heading);
    color: var(--primary-color);
    font-weight: bold;
    text-decoration: none;
    box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.5), 0 0 10px rgba(139, 0, 0, 0.3);
    transition: var(--transition);
    z-index: 1000;
    border-radius: 4px;
    display: none; /* Hidden by default, shown via JS */
}

.floating-next-post:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-5px);
    box-shadow: 5px 10px 20px rgba(139, 0, 0, 0.4);
}

.read-more {
    display: inline-block;
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    font-weight: bold;
}

.search-filter-container {
    margin-bottom: var(--spacing-lg);
    background-color: var(--surface-color);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.search-box {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.search-box input {
    flex: 1;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: var(--spacing-sm);
    border-radius: 4px;
    font-family: var(--font-body);
}

.search-box button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: var(--transition);
}

.search-box button:hover {
    background-color: var(--accent-color);
}

.category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.category-btn {
    background: none;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    font-family: var(--font-heading);
    transition: var(--transition);
}

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

.search-feedback {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: var(--spacing-sm);
}

.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--border-color);
}

.pagination-btn {
    display: inline-block;
    border: 1px solid var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    font-family: var(--font-heading);
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.pagination-btn:hover:not(.disabled) {
    background-color: var(--primary-color);
    color: #fff;
    box-shadow: 0 0 10px rgba(139, 0, 0, 0.3);
}

.pagination-btn.disabled {
    border-color: var(--border-color);
    color: var(--text-muted);
    cursor: not-allowed;
}

.pagination-info {
    font-family: var(--font-heading);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 600px) {
    header h1 {
        font-size: 1.8rem;
    }
    main {
        margin: var(--spacing-md) auto;
    }
    .pagination-container {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}