/* ========== CSS Variables (Premium Design System) ========== */
:root {
    /* Primary Brand Colors - Deep & Trustworthy */
    --primary-color: #0f172a;
    /* Slate 900 */
    --primary-light: #334155;
    /* Slate 700 */
    --accent-color: #3b82f6;
    /* Blue 500 - Vibrant accent */
    --accent-glow: rgba(59, 130, 246, 0.5);

    /* Text Colors */
    --text-primary: #1e293b;
    /* Slate 800 */
    --text-secondary: #475569;
    /* Slate 600 */
    --text-on-dark: #f8fafc;

    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    /* Slate 50 */
    --bg-tertiary: #f1f5f9;
    /* Slate 100 */
    --bg-glass: rgba(255, 255, 255, 0.8);

    /* UI Elements */
    --border-color: #e2e8f0;
    /* Slate 200 */
    --border-hover: #cbd5e1;
    /* Slate 300 */

    /* Shadows & Depth */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.07);

    --radius: 12px;
    --radius-sm: 8px;
    --transition: ALL 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--bg-primary);
    background-image: radial-gradient(circle at top right, #f1f5f9 0%, transparent 40%),
        radial-gradient(circle at bottom left, #f8fafc 0%, transparent 40%);
    min-height: 100vh;
}

.container {
    max-width: 1280px;
    /* Slightly wider for modern feel */
    margin: 0 auto;
    padding: 0 2rem;
}

/* ========== Utility Classes ========== */
.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-glass);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== Header ========== */
.header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo i {
    font-size: 1.75rem;
    color: var(--primary-color);
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
}

/* ========== Dashboard Hero (Minimized) ========== */
.hero {
    position: relative;
    padding: 3rem 0;
    /* Reduced padding */
    overflow: hidden;
    background: white;
    /* Clean background */
    border-bottom: 1px solid var(--border-color);
}

.hero-content {
    max-width: 1280px;
    margin: 0 auto;
    text-align: left;
    /* Align left for dashboard feel */
    align-items: flex-start;
    padding-left: 2rem;
    padding-right: 2rem;
}

.hero-title {
    font-size: 2rem;
    /* Smaller title */
    line-height: 1.2;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.hero-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0;
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background: var(--bg-secondary);
}

/* ========== Section Styles ========== */
section {
    padding: 2.5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.intro-section {
    background: var(--bg-secondary);
}

/* Context Box */
.context-box {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.context-box h3 {
    margin-top: 0;
    color: var(--primary-color);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.context-box.collapsed .context-content {
    display: none;
}

.context-box-toggle {
    background: none;
    border: none;
    color: var(--primary-color);
    font-weight: 500;
    cursor: pointer;
    padding: 0;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.context-box-toggle:hover {
    text-decoration: underline;
}

/* Nested Navigation */
.nested-nav {
    display: none;
    padding-left: 1rem;
    margin-top: 0.25rem;
    list-style: none;
}

.sidebar-nav li.expanded>.nested-nav {
    display: block;
}

.nested-nav a {
    font-size: 0.85rem;
    padding: 0.25rem 0.5rem;
    border-left: 2px solid transparent;
}

.nested-nav a:hover,
.nested-nav a.active {
    background: rgba(44, 62, 80, 0.1);
    /* Light background for visibility */
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 600;
    /* Make it bolder */
}

@media (max-width: 768px) {
    .context-box {
        float: none;
        width: 100%;
        margin: 1rem 0;
    }
}

/* ========== Layout Wrapper (Hybrid: Sidebar Left + Main Content) ========== */
.layout-wrapper {
    display: grid;
    grid-template-columns: 280px 1fr;
    /* Col 1 = Sidebar (280px), Col 2 = Main Content (1fr) */
    gap: 3rem;
    padding: 3rem 0;
    align-items: start;
}

.main-content {
    min-width: 0;
    grid-column: 2;
    /* Explicitly place in the wide column */
    grid-row: 1;
}

.sidebar {
    position: sticky;
    top: 6rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    grid-column: 1;
    /* Explicitly place in the narrow column */
    grid-row: 1;
}

@media (max-width: 1024px) {
    .layout-wrapper {
        grid-template-columns: 250px 1fr;
        gap: 2rem;
    }
}

@media (max-width: 850px) {
    .layout-wrapper {
        grid-template-columns: 1fr;
        /* Stack on smaller screens */
        gap: 3rem;
    }

    .sidebar {
        position: static;
        width: 100%;
        max-width: 600px;
        /* Don't get too wide on tablets */
        margin: 0 auto;
    }
}

/* ========== Feature Highlights (Main Area) ========== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-glow);
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    color: var(--primary-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ========== Sidebar Compact Cards ========== */
.sidebar-card {
    background: white;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.sidebar-header {
    background: var(--bg-secondary);
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.sidebar-item a {
    display: block;
    padding: 0.75rem 1rem;
    text-decoration: none;
    font-size: 0.9rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--bg-tertiary);
    transition: background-color 0.2s;
    line-height: 1.4;
}

.sidebar-item:last-child a {
    border-bottom: none;
}

.sidebar-item a:hover {
    background: var(--bg-tertiary);
    color: var(--accent-color);
}

.sidebar-item i {
    color: var(--text-secondary);
    font-size: 0.8em;
    margin-left: 0.25rem;
    opacity: 0.5;
}

/* ========== Dashboard Grid (Masonry-ish) ========== */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
    padding: 2rem 0;
    align-items: start;
    /* Prevent stretching */
}

.span-4 {
    grid-column: span 4;
}

.span-6 {
    grid-column: span 6;
}

.span-8 {
    grid-column: span 8;
}

.span-12 {
    grid-column: span 12;
}

@media (max-width: 1024px) {
    .span-4 {
        grid-column: span 6;
    }

    .span-8 {
        grid-column: span 12;
    }
}

@media (max-width: 768px) {

    .span-4,
    .span-6 {
        grid-column: span 12;
    }
}

/* ========== Article Content (High Density) ========== */
.article-content {
    background: white;
    padding: 2.5rem;
    /* Spacious padding inside the paper */
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.article-content h1 {
    font-size: 2rem;
    /* Reduced from 2.5rem */
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
}

.article-content h2 {
    font-size: 1.4rem;
    /* Reduced */
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--bg-tertiary);
    color: var(--text-primary);
}

.article-content h3 {
    font-size: 1.15rem;
    /* Reduced */
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
}

.article-content p,
.article-content li {
    font-size: 1rem;
    /* Reduced from 1.1rem default */
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.article-content ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.article-content li {
    margin-bottom: 0.25rem;
}

/* Intro Text */
.intro-text {
    font-size: 1.15rem !important;
    line-height: 1.6;
    color: var(--text-primary) !important;
    margin-bottom: 2rem;
    font-weight: 400;
}

/* Info Grid in Articles */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.info-item {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
}

/* Unified Principle Card (Process Steps) */
.unified-principle-card {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius) var(--radius) 0 0;
    overflow: hidden;
    margin-top: 1.5rem;
}

.principle-column {
    padding: 1.5rem;
    border-right: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.principle-column:last-child {
    border-right: none;
}

.principle-icon {
    width: 32px;
    height: 32px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    /* Smaller icon */
    color: var(--accent-color);
    margin-bottom: 0.75rem;
}

.principle-column strong {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.principle-column p {
    font-size: 0.9rem;
    margin: 0;
}

@media (max-width: 768px) {
    .unified-principle-card {
        grid-template-columns: 1fr;
    }

    .principle-column {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .principle-column:last-child {
        border-bottom: none;
    }
}

/* Example Box */
.example-box {
    background: #eff6ff;
    border-left: 4px solid var(--accent-color);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 var(--radius) var(--radius) 0;
}

.example-box strong {
    color: var(--primary-dark);
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.example-box p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-primary);
}


.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-header i {
    font-size: 1.1rem;
    color: var(--accent-color);
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-content {
    padding: 0;
    /* List items will handle padding */
}

/* ========== Dashboard List Items ========== */
.dashboard-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.dashboard-item {
    border-bottom: 1px solid var(--bg-tertiary);
}

.dashboard-item:last-child {
    border-bottom: none;
}

.resource-link-item {
    /* Adapting old class */
    display: block;
    padding: 1rem 1.5rem;
    text-decoration: none;
    transition: background-color 0.2s;
}

.resource-link-item:hover {
    background-color: var(--bg-secondary);
}

.resource-link-title {
    display: block;
    font-weight: 600;
    color: var(--accent-color);
    /* Premium blue link */
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

.resource-link-item:hover .resource-link-title {
    color: var(--primary-dark);
    text-decoration: underline;
}

.resource-link-desc {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.taxonomy-table th,
.taxonomy-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.taxonomy-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
}

.taxonomy-table tr:last-child td {
    border-bottom: none;
}

.taxonomy-table tr:nth-child(even) {
    background-color: var(--bg-secondary);
}

.taxonomy-table tr:hover {
    background-color: var(--bg-tertiary);
}

/* ========== Principles Section ========== */
.principles-section {
    background: var(--bg-primary);
}

.principles-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.principle-item {
    display: flex;
    gap: 1.5rem;
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

.principle-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.principle-number {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.principle-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.principle-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========== Practical Examples Section ========== */
.practical-section {
    background: var(--bg-secondary);
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.example-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.example-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.example-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.example-card h3 i {
    color: var(--primary-color);
}

.example-card ul {
    list-style: none;
}

.example-card ul li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.example-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 600;
}

/* ========== Resources Section ========== */
.resources-section {
    background: var(--bg-primary);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.resource-card {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
}

.resource-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.resource-card h3 i {
    color: var(--primary-color);
}

.resource-card ul {
    list-style: none;
}

.resource-card ul li {
    margin-bottom: 0.75rem;
}

.resource-card a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.resource-card a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ========== Footer ========== */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-content p {
    margin-bottom: 0.5rem;
}

.footer-disclaimer {
    font-size: 0.875rem;
    opacity: 0.8;
    margin-top: 0.5rem;
}

/* ========== Responsive Design ========== */
@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .principle-item {
        flex-direction: column;
        text-align: center;
    }

    .principle-number {
        margin: 0 auto;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .logo h1 {
        font-size: 1rem;
    }

    .hero {
        padding: 3rem 0;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    section {
        padding: 3rem 0;
    }
}

/* ========== Article Specific Styles ========== */
.section-card {
    background: white;
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--primary-color);
}

.section-card h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--bg-tertiary);
    color: var(--primary-dark);
}

.legal-ground-card,
.principle-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary-color);
}

.legal-ground-card h3,
.principle-card h3 {
    margin-top: 0;
    color: var(--text-primary);
    font-size: 1.25rem;
}

.highlight-box {
    background: #eff6ff;
    /* Light blue */
    border: 1px solid #bfdbfe;
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
    color: #1e3a8a;
}

.highlight-box strong {
    display: block;
    margin-bottom: 0.5rem;
    color: #1e40af;
}

.warning-box {
    background: #fef2f2;
    /* Light red */
    border: 1px solid #fecaca;
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
    color: #991b1b;
}

.warning-box strong {
    display: block;
    margin-bottom: 0.5rem;
    color: #b91c1c;
}

.example-box {
    background: #f0f9ff;
    border: 1px solid #bae6fd;
    padding: 1.25rem;
    margin: 1rem 0;
    border-radius: var(--radius);
}

.example-box strong {
    display: block;
    margin-bottom: 0.5rem;
    color: #15803d;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.info-item {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: var(--radius);
    border-left: 3px solid var(--primary-color);
}

.info-item strong {
    color: var(--primary-color);
}

/* Accordion Styles */
.accordion {
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    background: white;
}

.accordion-header {
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s;
}

.accordion-header:hover {
    background: var(--bg-tertiary);
}

.accordion-header h4 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.accordion-icon {
    transition: transform 0.3s ease;
}

.accordion.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.accordion.active>.accordion-content {
    max-height: 99999px;
    /* Increased to accommodate longer content */
}

.accordion-inner {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* Case Accordion (Nested) */
.case-accordion {
    border: none;
    background: transparent;
    margin-bottom: 1rem;
    box-shadow: none;
}

.case-accordion .accordion-header {
    background: white;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
    border-radius: var(--radius);
    padding: 0.75rem 1.25rem;
}

.case-accordion .accordion-header:hover {
    background: var(--bg-secondary);
    transform: translateX(2px);
    transition: var(--transition);
}

.case-accordion.active .accordion-header {
    border-radius: var(--radius) var(--radius) 0 0;
    background: var(--bg-tertiary);
}

.case-accordion .accordion-content {
    background: white;
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
}

.case-accordion .accordion-header h4 {
    font-size: 0.95rem;
    color: var(--primary-dark);
}

/* Topic Header Style */
.section-card.topic-header {
    border-top: 6px solid var(--primary-color);
    background: linear-gradient(to bottom, #f8fafc, #ffffff);
}

.section-card.topic-header h2 {
    color: var(--primary-dark);
    font-size: 2rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
}

/* Specific override for Article 5 Principles to be green */
#principer.topic-header {
    border-top-color: var(--secondary-color);
}

#principer.topic-header h2 {
    color: #047857;
    /* Darker green for better readability */
    border-bottom-color: var(--secondary-color);
}

#principer.topic-header h2 i {
    color: var(--secondary-color);
}

/* ========== Content Typography Enhancements ========== */
.accordion-inner h3 {
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin-top: 2.5rem;
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--bg-tertiary);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.accordion-inner h3:first-child {
    margin-top: 0;
}

.accordion-inner h4 {
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-top: 1.75rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.accordion-inner ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 1.5rem;
}

/* Unified Principle Card */
.unified-principle-card {
    display: flex;
    flex-wrap: wrap;
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    margin: 1.5rem 0;
}

.principle-column {
    flex: 1;
    min-width: 200px;
    padding: 1.5rem;
    border-right: 1px solid var(--border-color);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.principle-column:last-child {
    border-right: none;
}

.principle-column strong {
    display: block;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

.principle-column p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.4;
}

.principle-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    background: var(--bg-secondary);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 768px) {
    .unified-principle-card {
        flex-direction: column;
    }

    .principle-column {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .principle-column:last-child {
        border-bottom: none;
    }
}

/* Comparison Card (Data Minimization) */
.comparison-card {
    display: flex;
    flex-wrap: wrap;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    margin: 1.5rem 0;
    box-shadow: var(--shadow-sm);
    background: white;
    max-width: 100%;
    width: 100%;
    /* Ensure container takes full width but respects parent */
}

.comparison-header {
    width: 100%;
    background: var(--bg-tertiary);
    padding: 1rem 1.5rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.comparison-header i {
    color: var(--primary-color);
}

.comparison-col {
    flex: 1 1 300px;
    min-width: 280px;
    /* Force wrap if less than this space available */
    padding: 1.5rem;
    overflow-wrap: break-word;
    word-break: normal;
}



.comparison-col.positive {
    background: #f0fdf4;
    /* Light green */
    border-right: 1px solid var(--border-color);
}

.comparison-col.negative {
    background: #fef2f2;
    /* Light red */
}

.comparison-col strong {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.comparison-col.positive strong {
    color: #15803d;
}

.comparison-col.negative strong {
    color: #b91c1c;
}

.comparison-icon {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.comparison-col.positive .comparison-icon {
    color: #15803d;
}

.comparison-col.negative .comparison-icon {
    color: #b91c1c;
}

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

.comparison-list li {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.comparison-list li::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    margin-top: 0.6em;
    flex-shrink: 0;
}

.comparison-col.positive .comparison-list li::before {
    background: #15803d;
}

.comparison-col.negative .comparison-list li::before {
    background: #b91c1c;
}

.comparison-warning {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px dashed rgba(185, 28, 28, 0.2);
    font-size: 0.9rem;
    color: #991b1b;
}

.comparison-warning strong {
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

@media (max-width: 768px) {
    .comparison-col.positive {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
}

.accordion-inner ul li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.accordion-inner ul li strong {
    color: var(--text-primary);
}

.accordion-inner ul li::before {
    content: "→";
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
}

.accordion-inner p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Enhancing the Principles List from previous step */
.principles-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.principle-item {
    display: flex;
    gap: 1rem;
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.principle-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.principle-number {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.principle-content h4 {
    margin-top: 0;
    color: var(--primary-color);
}

.btn-text {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    margin-top: 1rem;
}

.btn-text:hover {
    color: var(--primary-dark);
    gap: 0.75rem;
}

/* Process Flow Card (Overview) */
.process-flow-card {
    display: flex;
    flex-wrap: nowrap;
    /* Force single row if possible */
    gap: 1rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem 1rem;
    margin: 1.5rem 0;
    box-shadow: var(--shadow-sm);
    justify-content: space-between;
}

.process-step {
    flex: 1;
    min-width: 0;
    /* Allow shrinking */
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 0.5rem;
}

/* Arrow divider on desktop */
.process-step:not(:last-child)::after {
    content: '\f061';
    /* FontAwesome arrow-right */
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    right: -0.5rem;
    /* Adjusted for tighter gap */
    top: 1.2rem;
    /* Adjusted for smaller icon */
    color: var(--text-tertiary);
    font-size: 1.2rem;
    transform: translateX(50%);
}

.process-icon {
    width: 50px;
    /* Smaller icon */
    height: 50px;
    background: var(--bg-tertiary);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    /* Smaller font */
    margin-bottom: 0.75rem;
    transition: var(--transition);
}

.process-step:hover .process-icon {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.process-title {
    font-weight: 700;
    margin-bottom: 0.25rem;
    font-size: 1rem;
    color: var(--text-primary);
}

.process-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.3;
}

/* Updated Breakpoint: Only stack on very small screens (mobile portrait) */
@media (max-width: 600px) {
    .process-flow-card {
        flex-direction: column;
        gap: 2rem;
    }

    .process-step {
        width: 100%;
        padding-bottom: 0.5rem;
    }

    .process-step:not(:last-child)::after {
        content: '\f063';
        /* Arrow down */
        top: auto;
        bottom: -1.25rem;
        right: 50%;
        transform: translateX(50%);
    }

    .process-step:not(:last-child)::before {
        display: none;
        /* No line needed for simple mobile stack */
    }
}

/* ========== Compact Header ========== */
.compact-header {
    text-align: left;
    margin-bottom: 1.5rem;
    max-width: 800px;
}

.compact-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.compact-header p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ========== Content Label (Small Header) ========== */
.content-label {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 1rem 0;
    display: block;
}

/* ========== Bento Grid Resources ========== */
.resource-bento-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: minmax(100px, auto);
    gap: 1.5rem;
    margin-top: 1rem;
}

.resource-box {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.resource-box:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.resource-box.span-4 {
    grid-column: span 4;
}

.resource-box.span-6 {
    grid-column: span 6;
}

.resource-box.span-12 {
    grid-column: span 12;
}

.resource-box-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--bg-tertiary);
}

.resource-box-header i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.resource-box-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.resource-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.resource-link-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.resource-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.resource-link:hover {
    text-decoration: underline;
}

.resource-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.4;
}

@media (max-width: 900px) {

    .resource-box.span-4,
    .resource-box.span-6 {
        grid-column: span 12;
    }
}

/* ========== Article Layout (Gold Standard) ========== */
.article-wrapper {
    display: flex;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.sidebar-nav {
    width: 280px;
    flex-shrink: 0;
    position: sticky;
    top: 100px;
    height: fit-content;
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    z-index: 10;
}

.sidebar-nav h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.sidebar-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav li {
    margin-bottom: 0.5rem;
}

.sidebar-nav a {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 4px;
    transition: var(--transition);
    font-size: 0.9rem;
}

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

.article-content {
    flex: 1;
    max-width: 900px;
}

.section-card h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: none;
    /* Override default */
    padding-bottom: 0;
}

.section-card h2 i {
    color: var(--primary-color);
}

.section-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 2rem 0 1rem;
    color: var(--text-primary);
}

.section-card h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 1.5rem 0 0.75rem;
    color: var(--primary-color);
}

.intro-box {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 2rem;
    border-radius: var(--radius);
    margin: 2rem 0;
}

.intro-box p {
    color: white;
    margin: 0;
    line-height: 1.8;
}

/* Table Styles */
.year-wheel-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

.year-wheel-table th,
.year-wheel-table td {
    border: 1px solid #e5e7eb;
    padding: 0.75rem;
    text-align: left;
}

.year-wheel-table th {
    background-color: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

.year-wheel-table tr:nth-child(even) {
    background-color: #f9fafb;
}

@media (max-width: 1024px) {
    .article-wrapper {
        flex-direction: column;
    }

    .sidebar-nav {
        width: 100%;
        position: static;
    }
}