/* Base Layout & Typography */
body.lore-page {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: "Lora", Georgia, "Times New Roman", serif;
    font-size: 16px;
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Side Navigation - Core Structure */
.side-menu {
    position: fixed;
    top: 64px; /* Account for main navbar */
    left: 0;
    height: calc(100vh - 64px);
    width: 64px; /* Collapsed width */
    z-index: 900; /* Below navbar (1000) */
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s ease, border-color 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}

.side-menu:hover {
    width: 280px; /* Expanded width */
    box-shadow: 4px 0 25px rgba(0, 0, 0, 0.3);
}

.side-menu-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 280px; /* Always full width internally to prevent squishing */
    background: inherit;
}

/* Side Menu - Header */
.side-menu-header {
    height: 64px;
    display: flex;
    align-items: center;
    padding: 0 0 0 16px; /* Align icon with sidebar center */
    flex-shrink: 0;
    border-bottom: 1px solid transparent;
}

.side-menu-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.side-menu-title {
    margin-left: 16px;
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    white-space: nowrap;
}

.side-menu:hover .side-menu-title {
    opacity: 1;
    transform: translateX(0);
    transition-delay: 0.1s;
}

.side-menu-title h1 {
    font-family: 'Protest Regular', sans-serif;
    font-size: 1.2rem;
    margin: 0;
    line-height: 1;
}

.side-menu-title p {
    font-size: 0.75rem;
    opacity: 0.7;
    margin: 4px 0 0 0;
    line-height: 1.2;
    white-space: normal;
}

/* Side Menu - TOC (Content) */
.side-menu-toc {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1rem 0;
    opacity: 0;
    transition: opacity 0.2s ease;
    scrollbar-width: thin;
}

.side-menu:hover .side-menu-toc {
    opacity: 1;
    transition-delay: 0.15s;
}

.side-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lore-toc-item {
    width: 100%;
}

.lore-toc-link {
    width: 100%;
    display: block;
    padding: 10px 24px;
    border: none;
    background: transparent;
    text-align: left;
    cursor: pointer;
    font-size: 0.9rem;
    font-family: inherit;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: background-color 0.2s ease, color 0.2s ease;
    opacity: 0.8;
}

.lore-toc-link:hover {
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.05);
}

.lore-toc-link.is-active {
    font-weight: 600;
    opacity: 1;
    border-left: 3px solid currentColor;
    padding-left: 21px; /* Compensate for border */
}

/* Side Menu - Footer */
.side-menu-footer {
    padding: 1rem 0;
    border-top: 1px solid transparent;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.theme-toggle {
    display: flex;
    align-items: center;
    padding: 10px 0 10px 16px;
    background: transparent;
    border: none;
    cursor: pointer;
    text-decoration: none;
    font-family: inherit;
    width: 100%;
    transition: background-color 0.2s ease;
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.theme-icon {
    width: 32px;
    display: flex;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.theme-label {
    margin-left: 16px;
    opacity: 0;
    white-space: nowrap;
    font-size: 0.9rem;
    transition: opacity 0.2s ease;
}

.side-menu:hover .theme-label {
    opacity: 1;
    transition-delay: 0.1s;
}

/* Main Content Area */
.lore-shell {
    padding-left: 64px; /* Space for collapsed sidebar */
    min-height: 100vh;
    transition: padding-left 0.3s ease;
}

.lore-layout {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

.lore-reader {
    border: none !important; /* Requirement */
    background: transparent;
    position: relative;
}

/* Article Styling */
.lore-article {
    max-width: 760px;
    margin: 0 auto;
}

.lore-article-header {
    margin-bottom: 2.5rem;
    text-align: center;
}

.lore-chapter-title {
    font-family: 'Protest Regular', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    line-height: 1.2;
    transition: color 0.3s ease;
}

.lore-chapter-meta {
    display: flex;
    justify-content: center;
    gap: 1rem;
    font-size: 0.85rem;
    opacity: 0.7;
    font-family: system-ui, -apple-system, sans-serif;
}

.lore-article-body {
    font-size: 1.1875rem;
    line-height: 1.85;
    letter-spacing: 0.01em;
}

.lore-chapter-name {
    margin: 0 0 1.25rem 0;
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.lore-article-body p {
    margin-bottom: 1.75rem;
    text-align: justify;
    word-spacing: 0.02em;
}

.lore-article-body h1,
.lore-article-body h2,
.lore-article-body h3 {
    font-family: 'Protest Light', sans-serif;
    margin-top: 2rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

/* Progress Bar */
.lore-progress {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lore-progress-bar {
    display: none;
}

.lore-progress-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    padding: 0;
    border: none;
    color: inherit;
    font-family: 'Monolisa', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: none;
    gap: 0.5rem;
}

.lore-progress-sidebar {
    position: static;
    margin: 0 0 0.5rem 0;
    padding-left: 16px;
    align-self: flex-start;
}

.lore-progress-sidebar .lore-progress-meta {
    min-width: 32px;
    height: 32px;
    font-size: 0.85rem;
    justify-content: flex-start;
    gap: 16px;
}

.lore-progress-mobile {
    z-index: 210;
}

.lore-progress-mobile .lore-progress-meta {
    width: 100%;
    height: 100%;
    padding: 0;
    font-size: 0.8rem;
    justify-content: center;
}

.lore-progress-label {
    display: none;
    font-size: 0.85rem;
    font-weight: 500;
}

.lore-reading-percent {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
}

.side-menu:hover .lore-progress-label,
.side-menu.mobile-open .lore-progress-label {
    display: inline;
}

body.lore-page.lore-theme-dark .lore-progress-sidebar {
    color: #a3a3a3;
}

body.lore-page.lore-theme-dark .side-menu:hover .lore-progress-sidebar,
body.lore-page.lore-theme-dark .side-menu.mobile-open .lore-progress-sidebar {
    color: #ffffff;
}

body.lore-page.lore-theme-light .lore-progress-sidebar {
    color: #525252;
}

body.lore-page.lore-theme-light .side-menu:hover .lore-progress-sidebar,
body.lore-page.lore-theme-light .side-menu.mobile-open .lore-progress-sidebar {
    color: #000000;
}

.lore-chapter-position {
    display: none;
}

/* Controls */
.lore-controls {
    display: flex;
    justify-content: space-between;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(128, 128, 128, 0.2);
}

.lore-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: 1px solid;
    background: transparent;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.lore-nav-btn[disabled] {
    opacity: 0.3;
    cursor: not-allowed;
    border-color: transparent;
}

/* Empty State */
.lore-empty-state {
    padding: 1rem;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.7;
}

/* THEMES */

/* Dark Theme (Default) */
body.lore-page.lore-theme-dark {
    background: #121212; /* Neutral dark gray */
    color: #e5e5e5; /* Neutral light gray */
}

body.lore-page.lore-theme-dark .side-menu {
    background: #0a0a0a; /* Almost black */
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    color: #e5e5e5;
}

body.lore-page.lore-theme-dark .side-menu-header {
    border-bottom-color: rgba(255, 255, 255, 0.05);
}

body.lore-page.lore-theme-dark .side-menu-footer {
    border-top-color: rgba(255, 255, 255, 0.05);
}

body.lore-page.lore-theme-dark .lore-toc-link {
    color: #a3a3a3; /* Neutral gray */
}

body.lore-page.lore-theme-dark .lore-toc-link:hover,
body.lore-page.lore-theme-dark .lore-toc-link.is-active {
    color: #ffffff;
}

body.lore-page.lore-theme-dark .lore-toc-link.is-active {
    background: rgba(255, 255, 255, 0.08);
}

body.lore-page.lore-theme-dark .theme-toggle {
    color: #a3a3a3;
}

body.lore-page.lore-theme-dark .theme-toggle:hover {
    color: #ffffff;
}

/* Requirement: lore-chapter-title color white by default for dark theme */
body.lore-page.lore-theme-dark .lore-chapter-title {
    color: #ffffff; 
}

body.lore-page.lore-theme-dark .lore-chapter-name {
    color: #bdbdbd;
}

body.lore-page.lore-theme-dark .lore-article-body h1,
body.lore-page.lore-theme-dark .lore-article-body h2,
body.lore-page.lore-theme-dark .lore-article-body h3 {
    color: #f5f5f5;
}

body.lore-page.lore-theme-dark .lore-nav-btn {
    border-color: #404040;
    color: #e5e5e5;
}

body.lore-page.lore-theme-dark .lore-nav-btn:not([disabled]):hover {
    background: #262626;
    border-color: #525252;
}

body.lore-page.lore-theme-dark .lore-progress-fill {
    background: #e5e5e5; /* Monochrome gray/white */
    box-shadow: 0 0 10px rgba(229, 229, 229, 0.5);
}

/* Light Theme */
body.lore-page.lore-theme-light {
    background: #ffffff; /* Pure white or very light gray */
    color: #171717; /* Very dark gray */
}

body.lore-page.lore-theme-light .side-menu {
    background: #f5f5f5;
    border-right: 1px solid rgba(0, 0, 0, 0.08);
    color: #262626;
}

body.lore-page.lore-theme-light .side-menu-header {
    border-bottom-color: rgba(0, 0, 0, 0.05);
}

body.lore-page.lore-theme-light .side-menu-footer {
    border-top-color: rgba(0, 0, 0, 0.05);
}

body.lore-page.lore-theme-light .lore-toc-link {
    color: #525252;
}

body.lore-page.lore-theme-light .lore-toc-link:hover,
body.lore-page.lore-theme-light .lore-toc-link.is-active {
    color: #000000;
}

body.lore-page.lore-theme-light .lore-toc-link.is-active {
    background: rgba(0, 0, 0, 0.04);
}

body.lore-page.lore-theme-light .theme-toggle {
    color: #525252;
}

body.lore-page.lore-theme-light .theme-toggle:hover {
    color: #000000;
    background-color: rgba(0, 0, 0, 0.04);
}

/* Requirement: lore-chapter-title switches to black when light theme is active */
body.lore-page.lore-theme-light .lore-chapter-title {
    color: #000000;
}

body.lore-page.lore-theme-light .lore-chapter-name {
    color: #666666;
}

body.lore-page.lore-theme-light .lore-article-body h1,
body.lore-page.lore-theme-light .lore-article-body h2,
body.lore-page.lore-theme-light .lore-article-body h3 {
    color: #000000;
}

body.lore-page.lore-theme-light .lore-nav-btn {
    border-color: #d4d4d4;
    color: #404040;
}

body.lore-page.lore-theme-light .lore-nav-btn:not([disabled]):hover {
    background: #f5f5f5;
    border-color: #a3a3a3;
}

body.lore-page.lore-theme-light .lore-progress-fill {
    background: #171717;
}

/* Mobile Toggle - Hidden on Desktop */
.mobile-menu-toggle {
    display: none;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .side-menu {
        width: 0;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .side-menu.mobile-open {
        width: 280px;
        transform: translateX(0);
    }
    
    .side-menu.mobile-open .side-menu-title,
    .side-menu.mobile-open .side-menu-toc,
    .side-menu.mobile-open .theme-label {
        opacity: 1;
        transform: none;
    }

    .lore-shell {
        padding-left: 0;
        padding-top: 20px;
    }

    .lore-article-body {
        font-size: 1.05rem;
        padding: 0 21px;
    }

    /* Mobile Header Toggle */
    .mobile-menu-toggle {
        display: flex; /* We need to add this to HTML via JS or CSS content if not present */
        position: fixed;
        top: 75px; /* Below navbar */
        left: 5px;
        z-index: 200;
        background: rgba(0,0,0,0.8);
        color: white;
        padding: 8px 12px;
        border-radius: 4px;
        cursor: pointer;
        border: none;
    }
    
    body.lore-theme-light .mobile-menu-toggle {
        background: rgba(255,255,255,0.9);
        color: #000;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }

    .lore-progress-mobile {
        left: 5px;
    }
}