:root {
    /* Color Palette: Dark neutral with Green/Red accents */
    --bg-main: #181818;
    --bg-sidebar: #1a1a1a;
    --bg-hover: #2c2c2c;
    --text-primary: #cccccc;
    --text-secondary: #9e9e9e;
    
    /* Accents */
    --accent-green: #2e7d32;
    --accent-green-light: #4caf50;
    --accent-red: #c62828;
    
    /* Typography */
    --font-ui: 'Inter', system-ui, -apple-system, sans-serif;
    --font-reading: 'Lora', Georgia, serif;
    --font-base-size: 1.15rem;
    
    /* Layout */
    --sidebar-width: 320px;
    --max-content-width: 70ch;
}

.light-theme {
    --bg-main: #f5f5f0; /* Off-white warm paper */
    --bg-sidebar: #eaeae5;
    --bg-hover: #dfdfd9;
    --text-primary: #2c2c2c; /* Charcoal */
    --text-secondary: #5a5a5a;
    
    --accent-green: #1b5e20; /* Darker green for contrast on light */
    --accent-green-light: #2e7d32;
    --accent-red: #b71c1c;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-ui);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* --- LOGIN SCREEN --- */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--bg-main);
    z-index: 1000;
}

.login-box {
    background-color: var(--bg-sidebar);
    padding: 3rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #333;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    max-width: 400px;
    width: 90%;
}

.lock-icon {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.login-box h2 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.login-box p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.login-box input {
    width: 100%;
    padding: 1rem;
    background-color: #0a0a0a;
    border: 1px solid #444;
    border-radius: 4px;
    color: white;
    font-size: 1rem;
    margin-bottom: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

.login-box input:focus {
    border-color: var(--accent-green-light);
}

.login-box button {
    width: 100%;
    padding: 1rem;
    background-color: var(--accent-green);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.login-box button:hover {
    background-color: var(--accent-green-light);
}

.error-msg {
    color: var(--accent-red) !important;
    margin-top: 1rem;
    margin-bottom: 0 !important;
    height: 1.5rem;
}

.login-box.error input {
    border-color: var(--accent-red);
}

/* --- MAIN LAYOUT --- */
.layout {
    display: flex;
    min-height: 100vh;
    max-width: 100vw;
    overflow-x: hidden;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-sidebar);
    border-right: 1px solid #333;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.5s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid #333;
}

.sidebar-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-green-light);
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

.search-container input {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: #0a0a0a;
    border: 1px solid #444;
    border-radius: 4px;
    color: white;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s;
}

.search-container input:focus {
    border-color: var(--accent-green-light);
}

.sidebar-nav {
    padding: 1rem 0;
}

.nav-category {
    padding: 0.75rem 1.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    font-weight: 600;
    margin-top: 0.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s, color 0.2s;
    user-select: none;
}

.nav-category:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.light-theme .nav-category:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.nav-category .chevron {
    width: 16px;
    height: 16px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-category.open .chevron {
    transform: rotate(180deg);
}

.category-content {
    display: none;
}

.category-content.open {
    display: block;
}

.nav-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 1rem 0.6rem 2.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s, background-color 0.2s;
    border-radius: 6px;
    margin-bottom: 0.2rem;
}

.nav-item:hover {
    background-color: var(--bg-hover);
}

.nav-item.active {
    color: var(--accent-green-light);
    background-color: var(--bg-hover);
    border-left-color: var(--accent-green);
    font-weight: 500;
}

.content-area {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 3rem 2rem 5rem;
    display: flex;
    justify-content: center;
}

/* Markdown Reading Area (Optimal Typography) */
.markdown-body {
    width: 100%;
    max-width: var(--max-content-width);
    font-family: var(--font-reading);
    font-size: var(--font-base-size); /* Responsive font size */
    line-height: 1.7; 
    color: var(--text-primary);
    overflow-wrap: break-word; /* Prevent long words from breaking layout */
}

/* ANTI-OVERFLOW RULES */
.markdown-body img, .markdown-body video {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    margin: 1.5em 0;
}

.markdown-body pre {
    overflow-x: auto;
    background-color: rgba(0,0,0,0.3);
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5em;
    border: 1px solid #333;
}

.light-theme .markdown-body pre {
    background-color: rgba(0,0,0,0.05);
    border-color: #ccc;
}

.markdown-body code {
    font-family: Consolas, monospace;
    font-size: 0.9em;
}

.markdown-body table {
    display: block;
    width: 100%;
    overflow-x: auto;
    border-collapse: collapse;
    margin-bottom: 1.5em;
}

.markdown-body th, .markdown-body td {
    padding: 0.75rem 1rem;
    border: 1px solid #444;
}

.light-theme .markdown-body th, .light-theme .markdown-body td {
    border-color: #ccc;
}

/* Typography Hierarchy */
.welcome-msg {
    text-align: center;
    margin-top: 20vh;
    font-family: var(--font-ui);
    color: var(--text-secondary);
}

.welcome-msg h1 {
    color: var(--accent-green-light);
    border: none;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
    font-family: var(--font-ui);
    color: var(--text-primary); /* Use text-primary instead of hardcoded white */
    margin-top: 2.5em;
    margin-bottom: 1em;
    font-weight: 600;
    line-height: 1.3;
}

.markdown-body h1 {
    font-size: 2.5rem;
    margin-top: 0;
    color: var(--accent-green-light);
    border-bottom: 1px solid #333;
    padding-bottom: 0.5em;
}

.light-theme .markdown-body h1 {
    border-bottom-color: #ccc;
    color: var(--accent-green);
}

.markdown-body h2 {
    font-size: 1.75rem;
}

.markdown-body p {
    margin-bottom: 1.5em;
}

.markdown-body a {
    color: var(--accent-green-light);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.markdown-body a:hover {
    border-bottom-color: var(--accent-green-light);
}

.markdown-body blockquote {
    margin: 2em 0;
    padding: 1.2em 1.5em;
    background-color: rgba(255, 255, 255, 0.03);
    border-left: 4px solid var(--text-secondary);
    color: var(--text-secondary);
    font-style: italic;
    font-size: 1.2rem;
    border-radius: 0 4px 4px 0;
}

/* Force Dark Mode Readability for inline-styled blockquotes */
body:not(.light-theme) .markdown-body blockquote {
    background-color: rgba(255, 255, 255, 0.05) !important;
    color: var(--text-primary) !important;
    border-left-color: var(--accent-green) !important;
}

/* Force Dark Mode Readability for ANY element with hardcoded light background colors (e.g. from Markdown exports) */
body:not(.light-theme) .markdown-body [style*="background-color"] {
    background-color: rgba(255, 255, 255, 0.05) !important;
    color: var(--text-primary) !important;
}

.light-theme .markdown-body blockquote {
    color: #666666;
    background-color: rgba(0, 0, 0, 0.03);
    border-left-color: #888888;
}

.markdown-body blockquote p:last-child {
    margin-bottom: 0;
}

.markdown-body ul,
.markdown-body ol {
    margin-bottom: 1.5em;
    padding-left: 2em;
}

.markdown-body li {
    margin-bottom: 0.5em;
}

/* Mobile Toggle (FAB Premium) */
.menu-btn {
    display: none;
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: rgba(46, 125, 50, 0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: white;
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 4px 16px rgba(46, 125, 50, 0.3);
    z-index: 200;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s;
}

.menu-btn:active {
    transform: scale(0.9) translateY(4px);
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.3);
}

.light-theme .menu-btn {
    box-shadow: 0 8px 24px rgba(27, 94, 32, 0.3);
}

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0,0,0,0.5);
    z-index: 50;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: opacity 0.3s ease;
}

@media (max-width: 768px) {
    .sidebar {
        width: 85vw;
        max-width: 320px;
        transform: translateX(-100%);
        background-color: rgba(26, 26, 26, 0.85);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-right: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .light-theme .sidebar {
        background-color: rgba(234, 234, 229, 0.85);
        border-right: 1px solid rgba(0, 0, 0, 0.05);
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: 10px 0 30px rgba(0,0,0,0.6);
    }

    .content-area {
        margin-left: 0;
        padding: 1.5rem 1rem 6rem;
        max-width: 100vw;
        overflow-x: hidden;
    }

    .markdown-body {
        font-size: 1.1rem;
    }

    .markdown-body h1 {
        font-size: 2rem;
    }

    .menu-btn {
        display: flex;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
} /* END OF MOBILE MEDIA QUERY */

/* --- SETTINGS MODAL --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0,0,0,0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 3000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--bg-sidebar);
    width: 90%;
    max-width: 350px;
    border-radius: 8px;
    border: 1px solid #333;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.light-theme .modal-content {
    border-color: #ddd;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background-color: rgba(0,0,0,0.2);
    border-bottom: 1px solid #333;
}

.light-theme .modal-header {
    background-color: rgba(0,0,0,0.05);
    border-bottom-color: #ddd;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-body {
    padding: 1.5rem;
}

.setting-group {
    margin-bottom: 1.5rem;
}

.setting-group:last-child {
    margin-bottom: 0;
}

.setting-group label {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.theme-toggle, .font-controls {
    display: flex;
    background-color: #0a0a0a;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid #333;
}

.light-theme .theme-toggle, .light-theme .font-controls {
    background-color: #e0e0e0;
    border-color: #ccc;
}

.theme-toggle button, .font-controls button {
    flex: 1;
    padding: 0.75rem;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s;
}

.font-controls span {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    font-weight: 600;
    border-left: 1px solid #333;
    border-right: 1px solid #333;
}

.light-theme .font-controls span {
    border-color: #ccc;
}

.theme-toggle button.active {
    background-color: var(--accent-green);
    color: white;
}

/* --- DASHBOARD & BOOKMARKS --- */
.dashboard {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.dashboard-section {
    margin-bottom: 2.5rem;
}

.dashboard-section h2 {
    font-size: 1.25rem;
    color: var(--accent-green-light);
    margin-bottom: 1rem;
    border-bottom: 1px solid #333;
    padding-bottom: 0.5rem;
}

.light-theme .dashboard-section h2 {
    border-color: #ccc;
    color: var(--accent-green);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.card {
    background-color: var(--bg-hover);
    padding: 1.25rem 1.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.05);
    text-decoration: none;
    color: var(--text-primary);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s, border-color 0.3s;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.light-theme .card {
    background-color: #fff;
    border-color: #ccc;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-green-light);
    box-shadow: 0 8px 15px rgba(0,0,0,0.2);
}

.card-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
    line-height: 1.4;
}

.card-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: auto;
    display: flex;
    justify-content: space-between;
}

.bookmark-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.2s, transform 0.2s;
}

.bookmark-btn.active {
    color: var(--accent-red);
}

.bookmark-btn:hover {
    transform: scale(1.1);
}

/* Progress Bar */
.progress-bar-bg {
    width: 100%;
    height: 4px;
    background-color: #333;
    border-radius: 2px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.light-theme .progress-bar-bg {
    background-color: #e0e0e0;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--accent-green-light);
    width: 0%;
}

/* --- ZEN MODE (DEEP READING) --- */
@media (min-width: 769px) {
    .layout.zen-mode .sidebar {
        opacity: 0.1;
    }
    .layout.zen-mode .sidebar:hover {
        opacity: 1;
    }
}

/* --- READING PROGRESS BAR --- */
.reading-progress-container {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    width: calc(100vw - var(--sidebar-width));
    height: 3px;
    background: transparent;
    z-index: 1000;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1), width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
@media (max-width: 768px) {
    .reading-progress-container {
        left: 0;
        width: 100vw;
    }
}
.reading-progress-bar {
    height: 100%;
    background-color: var(--accent-green-light);
    width: 0%;
    transition: width 0.1s ease-out;
    box-shadow: 0 0 10px var(--accent-green-light);
}

/* --- SMART PARAGRAPH TRACKER --- */
@keyframes flash-highlight {
    0% { background-color: transparent; }
    15% { background-color: rgba(76, 175, 80, 0.3); border-radius: 4px; box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.3); }
    80% { background-color: rgba(76, 175, 80, 0.1); border-radius: 4px; box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.1); }
    100% { background-color: transparent; }
}

.highlight-last-read {
    animation: flash-highlight 3s ease-out forwards;
}

/* --- AUTO-SCROLL HUD --- */
.autoscroll-hud {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(20, 20, 20, 0.85);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 30px;
    display: flex;
    align-items: center;
    padding: 0.5rem;
    gap: 0.5rem;
    z-index: 2000;
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

.light-theme .autoscroll-hud {
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(0,0,0,0.1);
}

.autoscroll-hud.active {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.autoscroll-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.autoscroll-btn:hover {
    background: rgba(255,255,255,0.1);
}

.autoscroll-btn.play-pause {
    background: var(--accent-green);
    color: white;
}

.light-theme .autoscroll-btn:hover {
    background: rgba(0,0,0,0.05);
}

.autoscroll-speed {
    font-size: 0.8rem;
    font-weight: 600;
    min-width: 3ch;
    text-align: center;
    color: var(--text-secondary);
}

/* --- ACTION CAPSULE (FLOATING) --- */
.action-capsule {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    display: flex;
    align-items: center;
    background: rgba(20, 20, 20, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0.25rem 0.5rem;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    z-index: 150;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s;
}

.action-capsule.hidden-scroll {
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
}

.light-theme .action-capsule {
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.layout.zen-mode .action-capsule { opacity: 0.2; }
.layout.zen-mode .action-capsule:hover { opacity: 1; }

@media (max-width: 768px) {
    .action-capsule {
        top: 1rem;
        right: 1rem;
        padding: 0.2rem 0.4rem;
    }
}

/* --- PAGINATION NAVIGATION --- */
.article-pagination {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.light-theme .article-pagination { border-top-color: rgba(0, 0, 0, 0.1); }

.page-btn {
    background: var(--bg-hover);
    padding: 1.25rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s, border-color 0.3s;
}

.light-theme .page-btn {
    background: #fff;
    border-color: rgba(0, 0, 0, 0.05);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.page-btn:hover {
    transform: translateY(-4px);
    border-color: var(--accent-green-light);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

.page-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.page-title {
    font-family: var(--font-ui);
    font-weight: 600;
    font-size: 1.05rem;
    line-height: 1.4;
}

.page-btn.prev-btn { align-items: flex-start; text-align: left; }
.page-btn.next-btn { align-items: flex-end; text-align: right; }

@media (max-width: 768px) {
    .article-pagination { grid-template-columns: 1fr; }
    .page-btn.prev-btn, .page-btn.next-btn { align-items: flex-start; text-align: left; }
}

/* --- HIGHLIGHTER (STABILO) --- */
.user-highlight {
    background-color: rgba(255, 235, 59, 0.25);
    border-radius: 4px;
    box-shadow: 0 0 0 4px rgba(255, 235, 59, 0.25);
    transition: background-color 0.2s;
    color: inherit; /* Maintain contrast */
}

.light-theme .user-highlight {
    background-color: rgba(255, 235, 59, 0.5);
    box-shadow: 0 0 0 4px rgba(255, 235, 59, 0.5);
}

.highlight-mode-active {
    cursor: crosshair !important;
}

.highlight-mode-active .markdown-body p,
.highlight-mode-active .markdown-body h1,
.highlight-mode-active .markdown-body h2,
.highlight-mode-active .markdown-body h3,
.highlight-mode-active .markdown-body h4,
.highlight-mode-active .markdown-body li,
.highlight-mode-active .markdown-body blockquote {
    cursor: crosshair;
    user-select: none;
    -webkit-user-select: none;
}

.highlight-mode-active .markdown-body p:hover,
.highlight-mode-active .markdown-body h1:hover,
.highlight-mode-active .markdown-body h2:hover,
.highlight-mode-active .markdown-body h3:hover,
.highlight-mode-active .markdown-body li:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
}
.light-theme .highlight-mode-active .markdown-body p:hover,
.light-theme .highlight-mode-active .markdown-body h1:hover,
.light-theme .highlight-mode-active .markdown-body h2:hover,
.light-theme .highlight-mode-active .markdown-body h3:hover,
.light-theme .highlight-mode-active .markdown-body li:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

/* --- HIGHLIGHT MARKERS & BADGES --- */
.progress-marker {
    position: absolute;
    top: 0;
    width: 4px;
    height: 100%;
    background-color: rgba(255, 235, 59, 0.85);
    box-shadow: 0 0 6px rgba(255, 235, 59, 0.5);
    z-index: 1001;
    border-radius: 2px;
    transform: translateX(-50%);
    pointer-events: none;
}

.nav-highlight-marker {
    font-size: 0.8rem;
    opacity: 0.8;
}

.card-highlight-badge {
    position: absolute;
    top: 0.8rem;
    right: 0.8rem;
    background: rgba(255, 235, 59, 0.15);
    border: 1px solid rgba(255, 235, 59, 0.4);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
.light-theme .card-highlight-badge {
    background: rgba(255, 235, 59, 0.4);
}