/* ==========================================================================
   Design System for WealthWatch (Real-time Financial Intelligence)
   ========================================================================== */

:root {
    /* Theme Light Variables */
    --primary: #10b981;
    --primary-rgb: 16, 185, 129;
    --secondary: #0f172a;
    --accent: #3b82f6;
    --bg-color: #f1f5f9;
    --card-bg: #ffffff;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --header-bg: rgba(248, 250, 252, 0.85);
    
    /* Layout Variables */
    --font-heading: 'JetBrains Mono', Georgia, serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --border-radius: 12px;
    --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --transition-speed: 0.25s;
}

/* Dark Mode Class Overrides */
.dark {
    --bg-color: #090d16;
    --card-bg: #111827;
    --text-color: #f3f4f6;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --header-bg: rgba(15, 23, 42, 0.85);
    --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 0.5em;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-speed);
}

a:hover {
    color: var(--secondary);
}

button, select, input, textarea {
    font-family: inherit;
}

/* ==========================================================================
   Header Styling
   ========================================================================== */

#site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--header-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 22px;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--text-color);
}

.logo i {
    color: var(--primary);
    font-size: 24px;
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-muted);
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
}

.header-actions button {
    background: none;
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    color: var(--text-color);
    transition: background-color var(--transition-speed);
}

.header-actions button:hover {
    background-color: var(--border-color);
}

/* ==========================================================================
   News Ticker
   ========================================================================== */

#news-ticker {
    background-color: var(--secondary);
    color: #ffffff;
    display: flex;
    align-items: center;
    font-size: 12px;
    font-weight: 600;
    height: 36px;
    overflow: hidden;
}

.ticker-label {
    background-color: var(--accent);
    padding: 0 15px;
    height: 100%;
    display: flex;
    align-items: center;
    z-index: 10;
    box-shadow: 4px 0 10px rgba(0,0,0,0.1);
}

.ticker-track {
    flex: 1;
    overflow: hidden;
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.ticker-content {
    display: flex;
    gap: 50px;
    white-space: nowrap;
    position: absolute;
    animation: scrollTicker 35s linear infinite;
}

.ticker-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ticker-item::before {
    content: "✦";
    color: var(--accent);
}

@keyframes scrollTicker {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

#main-content {
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 30px;
}

.hero {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    min-height: 380px;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    margin-bottom: 40px;
    transition: border-color var(--transition-speed);
}

.hero-image {
    background-size: cover;
    background-position: center;
    position: relative;
    min-height: 300px;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to right, rgba(0,0,0,0.4), transparent);
}

.hero-details {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: var(--card-bg);
}

.hero-badge {
    display: inline-block;
    align-self: flex-start;
    background-color: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
}

.hero h1 {
    font-size: 32px;
    margin-bottom: 15px;
}

.hero p {
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 25px;
}

.hero-meta {
    display: flex;
    gap: 20px;
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 25px;
}

.hero-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.hero-btn {
    align-self: flex-start;
    background-color: var(--primary);
    color: #ffffff;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

.hero-btn:hover {
    background-color: var(--secondary);
}

/* ==========================================================================
   Feed Layout
   ========================================================================== */

.feed-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 40px;
}

.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    gap: 15px;
    flex-wrap: wrap;
}

.categories-tabs {
    display: flex;
    gap: 10px;
}

.tab-btn {
    background-color: var(--card-bg);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.tab-btn:hover, .tab-btn.active {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

.search-sort-controls {
    display: flex;
    gap: 12px;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
}

.search-box input {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 12px 8px 36px;
    border-radius: 6px;
    width: 200px;
    outline: none;
    transition: border-color var(--transition-speed);
}

.search-box input:focus {
    border-color: var(--primary);
}

.search-sort-controls select {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    outline: none;
}

.rss-status {
    background-color: rgba(var(--primary-rgb), 0.08);
    border: 1px solid var(--primary);
    padding: 12px 20px;
    border-radius: var(--border-radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.rss-status-message {
    font-size: 14px;
    color: var(--text-color);
}

.rss-status-message i {
    color: var(--primary);
    margin-right: 8px;
}

.mini-btn {
    background: none;
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 4px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: all var(--transition-speed);
}

.mini-btn:hover {
    background-color: var(--primary);
    color: #ffffff;
}

/* ==========================================================================
   News Feed & Cards
   ========================================================================== */

.news-feed {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s, border-color var(--transition-speed);
}

.news-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

.card-img-container {
    background-color: rgba(var(--primary-rgb), 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: 160px;
}

.card-placeholder-svg {
    width: 100%;
    height: 100%;
    stroke: var(--primary);
    stroke-width: 1.5;
    opacity: 0.85;
}

.card-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.card-cat-badge {
    font-size: 10px;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.card-body h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--text-color);
}

.card-body p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 15px;
    flex-grow: 1;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
}

.card-meta-left {
    display: flex;
    gap: 15px;
}

.card-meta-left span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.engagement-bar {
    display: flex;
    gap: 8px;
}

.engage-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-speed);
    display: flex;
    align-items: center;
    gap: 4px;
}

.engage-btn:hover, .engage-btn.active {
    color: var(--primary);
}

/* ==========================================================================
   Sidebar Widgets
   ========================================================================== */

.sidebar-column {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sidebar-widget {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
    padding: 25px;
    transition: border-color var(--transition-speed);
}

.widget-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.widget-header i {
    color: var(--primary);
    font-size: 18px;
}

.widget-header h3 {
    font-size: 16px;
    margin-bottom: 0;
}

.widget-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 15px;
}

/* Ad Placements */
.ad-unit {
    background: linear-gradient(135deg, var(--card-bg) 0%, rgba(var(--primary-rgb), 0.05) 100%);
    border-radius: var(--border-radius);
    border: 1px dashed var(--primary);
    padding: 25px;
    position: relative;
    overflow: hidden;
}

.ad-unit.glow-card {
    border-style: solid;
    box-shadow: 0 0 15px rgba(var(--primary-rgb), 0.15);
}

.ad-unit.glow-card::after {
    content: '';
    position: absolute;
    top: -50%; left: -50%; width: 200%; height: 200%;
    background: linear-gradient(45deg, transparent 45%, rgba(255,255,255,0.1) 50%, transparent 55%);
    animation: shineAd 6s infinite linear;
    pointer-events: none;
}

@keyframes shineAd {
    0% { transform: translate(-30%, -30%) rotate(0deg); }
    100% { transform: translate(30%, 30%) rotate(0deg); }
}

.ad-badge {
    position: absolute;
    top: 0;
    right: 0;
    background-color: var(--border-color);
    color: var(--text-muted);
    font-size: 9px;
    font-weight: 700;
    padding: 2px 8px;
    border-bottom-left-radius: var(--border-radius);
}

.ad-content h4 {
    font-size: 15px;
    color: var(--primary);
    margin-bottom: 8px;
}

.ad-content p {
    font-size: 13px;
    color: var(--text-color);
    margin-bottom: 15px;
}

.ad-cta-btn {
    background-color: var(--primary);
    color: #ffffff;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: background-color var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.ad-cta-btn:hover {
    background-color: var(--secondary);
}

.secondary-ad-btn {
    background-color: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

.secondary-ad-btn:hover {
    background-color: var(--primary);
    color: #ffffff;
}

/* Interactive Calculator Styles */
.calc-group {
    margin-bottom: 12px;
}

.calc-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-muted);
}

.calc-group input, .calc-group select, .calc-group textarea {
    width: 100%;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 12px;
    border-radius: 6px;
    outline: none;
    transition: border-color var(--transition-speed);
}

.calc-group input:focus, .calc-group select:focus {
    border-color: var(--primary);
}

.calc-btn {
    background-color: var(--primary);
    color: #ffffff;
    border: none;
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-speed);
    margin-top: 5px;
}

.calc-btn:hover {
    background-color: var(--secondary);
}

.calc-results {
    margin-top: 15px;
    animation: slideInDown 0.3s forwards;
}

/* RSS Widget Panel Buttons */
.rss-source-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.rss-load-btn {
    background-color: rgba(var(--primary-rgb), 0.05);
    color: var(--primary);
    border: 1px solid var(--primary);
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.rss-load-btn:hover {
    background-color: var(--primary);
    color: #ffffff;
}

.custom-rss-input {
    display: flex;
    gap: 8px;
}

.custom-rss-input input {
    flex: 1;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 6px 10px;
    border-radius: 4px;
    outline: none;
    font-size: 12px;
}

.custom-rss-input button {
    background-color: var(--primary);
    color: #ffffff;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 12px;
    cursor: pointer;
}

/* Workspace Analytics */
.metric-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 15px;
    text-align: center;
}

.metric-val {
    font-size: 18px;
    font-weight: bold;
    color: var(--text-color);
}

.metric-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
}

.revenue-bar-container {
    background-color: var(--border-color);
    height: 6px;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 10px;
}

.revenue-bar-fill {
    background-color: var(--primary);
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease;
}

.analytics-sub {
    font-size: 10px;
    color: var(--text-muted);
    font-style: italic;
}

/* Newsletter Subscription */
.newsletter-widget button {
    background-color: var(--secondary);
    color: #ffffff;
    border: none;
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-speed);
    margin-top: 10px;
}

.newsletter-widget button:hover {
    background-color: var(--primary);
}

/* ==========================================================================
   Modals & Reading Mode
   ========================================================================== */

.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.25s forwards;
}

.modal-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 800px;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
}

.modal-close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-muted);
    transition: color var(--transition-speed);
}

.modal-close-btn:hover {
    color: var(--primary);
}

.modal-header {
    margin-bottom: 25px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.modal-badge {
    display: inline-block;
    background-color: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.modal-header h2 {
    font-size: 28px;
    margin-bottom: 12px;
}

.modal-meta {
    display: flex;
    gap: 20px;
    color: var(--text-muted);
    font-size: 13px;
}

.modal-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.modal-body {
    font-size: 16px;
    color: var(--text-color);
    line-height: 1.8;
    margin-bottom: 30px;
}

.modal-body p {
    margin-bottom: 20px;
}

.modal-body ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.modal-body li {
    margin-bottom: 8px;
}

.modal-actions-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.action-btn {
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all var(--transition-speed);
}

.action-btn:hover, .action-btn.active {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

.modal-shares {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-muted);
}

.share-link {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition-speed);
}

.share-link:hover {
    color: #ffffff;
}

.share-link.twitter:hover { background-color: #1da1f2; border-color: #1da1f2; }
.share-link.linkedin:hover { background-color: #0077b5; border-color: #0077b5; }
.share-link.link:hover { background-color: var(--primary); border-color: var(--primary); }

/* Comment System */
.modal-comments-section h3 {
    font-size: 18px;
    margin-bottom: 15px;
}

.comment-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.comment-item {
    background-color: var(--bg-color);
    padding: 15px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.comment-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 12px;
    color: var(--text-muted);
}

.comment-author {
    font-weight: bold;
    color: var(--text-color);
}

.comment-text {
    font-size: 14px;
}

.comment-input-form textarea {
    width: 100%;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 12px;
    border-radius: var(--border-radius);
    min-height: 80px;
    resize: vertical;
    outline: none;
    margin-bottom: 10px;
}

.comment-input-form textarea:focus {
    border-color: var(--primary);
}

.comment-input-form button {
    background-color: var(--primary);
    color: #ffffff;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

.comment-input-form button:hover {
    background-color: var(--secondary);
}

/* ==========================================================================
   Footer
   ========================================================================== */

#site-footer {
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 50px 30px 20px 30px;
    margin-top: 60px;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto 30px auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-branding {
    max-width: 400px;
}

.footer-branding p {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 10px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links h5 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-muted);
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInDown {
    from { transform: translateY(-10px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 1024px) {
    .feed-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero {
        grid-template-columns: 1fr;
    }
    
    .hero-details {
        padding: 25px;
    }
    
    .news-card {
        grid-template-columns: 1fr;
    }
    
    .card-img-container {
        min-height: 140px;
    }
    
    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-sort-controls {
        flex-direction: column;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .modal-card {
        padding: 20px;
        width: 95%;
    }
}

/* ==========================================================================
   Scroll Progress Indicator
   ========================================================================== */

.scroll-progress-container {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background-color: var(--border-color);
    z-index: 10;
    margin: -40px -40px 20px -40px;
    border-top-left-radius: var(--border-radius);
    border-top-right-radius: var(--border-radius);
    overflow: hidden;
}

.scroll-progress-fill {
    height: 100%;
    width: 0%;
    background-color: var(--primary);
    transition: width 0.1s ease-out;
}