/* ==============================================================
   AureviaFin - Modern Financial & Technology Design System
   WCAG 2.2 AA Accessible | Pure Vanilla CSS | Ultra-Fast Performance
   ============================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    /* Color Palette */
    --color-primary: #0b132b;
    --color-primary-light: #1c2541;
    --color-primary-dark: #050a17;
    --color-accent-gold: #d97706;
    --color-accent-gold-light: #fef3c7;
    --color-accent-blue: #0284c7;
    --color-accent-blue-light: #e0f2fe;
    --color-success: #059669;
    --color-success-light: #d1fae5;
    --color-danger: #dc2626;
    --color-danger-light: #fee2e2;

    /* Neutrals */
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-surface-alt: #f1f5f9;
    --color-border: #e2e8f0;
    --color-border-focus: #0284c7;
    --color-text-main: #0f172a;
    --color-text-muted: #64748b;
    --color-text-light: #94a3b8;

    /* Typography */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', Consolas, Monaco, monospace;

    /* Spacing & Layout */
    --container-max: 1240px;
    --container-narrow: 840px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* CSS Reset & Accessibility Foundation */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-bg);
    line-height: 1.65;
    text-rendering: optimizeLegibility;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

img, svg, picture {
    max-width: 100%;
    display: block;
}

a {
    color: var(--color-accent-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: #0369a1;
}

/* Skip link for screen readers */
.skip-link {
    position: absolute;
    top: -50px;
    left: 20px;
    background: var(--color-primary);
    color: #ffffff;
    padding: 10px 16px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    z-index: 99999;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 20px;
}

/* Layout Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-narrow {
    max-width: var(--container-narrow);
}

/* Typography Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4vw, 2.85rem); margin-bottom: 1.25rem; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-top: 2.25rem; margin-bottom: 1rem; }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); margin-top: 1.75rem; margin-bottom: 0.75rem; }
h4 { font-size: 1.15rem; margin-top: 1.25rem; margin-bottom: 0.5rem; }

p {
    margin-bottom: 1.25rem;
}

/* Header & Navigation */
.site-header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.03em;
}

.brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: 800;
    font-size: 1.15rem;
}

.brand-text-accent {
    color: var(--color-accent-gold);
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--color-text-main);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0.25rem;
    position: relative;
}

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-accent-blue);
    border-radius: 2px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-trigger-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-trigger-btn:hover {
    border-color: var(--color-accent-blue);
    color: var(--color-text-main);
}

.btn-mobile-toggle {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--color-primary);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(180deg, #ffffff 0%, var(--color-bg) 100%);
    padding: 4.5rem 0 3.5rem;
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--color-accent-gold-light);
    color: #92400e;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full);
    margin-bottom: 1.25rem;
}

.hero-title {
    max-width: 900px;
    margin: 0 auto 1.25rem;
}

.hero-subtitle {
    max-width: 720px;
    margin: 0 auto 2rem;
    font-size: 1.15rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-light);
    color: #ffffff;
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--color-surface);
    color: var(--color-primary);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent-blue);
    color: var(--color-accent-blue);
    box-shadow: var(--shadow-sm);
}

.btn-accent {
    background-color: var(--color-accent-gold);
    color: #ffffff;
}

.btn-accent:hover {
    background-color: #b45309;
    color: #ffffff;
}

.btn-sm {
    padding: 0.45rem 0.85rem;
    font-size: 0.85rem;
}

/* Section Common Styling */
.section-py {
    padding: 4rem 0;
}

.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 2.25rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-title {
    font-size: 1.75rem;
    margin-bottom: 0.35rem;
}

.section-subtitle {
    color: var(--color-text-muted);
    font-size: 1rem;
    margin-bottom: 0;
}

/* Card Grids */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.75rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 2rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

/* Cards */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: #cbd5e1;
}

.card-body {
    padding: 1.75rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-category-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent-blue);
    margin-bottom: 0.75rem;
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.card-title a {
    color: var(--color-primary);
}

.card-title a:hover {
    color: var(--color-accent-blue);
}

.card-excerpt {
    color: var(--color-text-muted);
    font-size: 0.925rem;
    margin-bottom: 1.25rem;
    flex: 1;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--color-text-light);
    border-top: 1px solid var(--color-surface-alt);
    padding-top: 1rem;
    margin-top: auto;
}

/* Calculator Cards */
.calc-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    text-decoration: none;
}

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

.calc-icon-badge {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background-color: var(--color-accent-blue-light);
    color: var(--color-accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    font-size: 1.25rem;
}

.calc-card-title {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.calc-card-desc {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    flex: 1;
}

.calc-action-link {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-accent-blue);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* Interactive Calculator Container */
.calculator-interface {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin: 2rem 0;
    overflow: hidden;
}

.calc-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
}

@media (max-width: 900px) {
    .calc-grid {
        grid-template-columns: 1fr;
    }
}

.calc-inputs-pane {
    padding: 2.25rem;
    border-right: 1px solid var(--color-border);
}

.calc-results-pane {
    padding: 2.25rem;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    display: flex;
    flex-direction: column;
}

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

.form-label {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: #ffffff;
    color: var(--color-text-main);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.input-slider {
    width: 100%;
    margin-top: 0.5rem;
    accent-color: var(--color-accent-blue);
}

.calc-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.result-card-highlight {
    background: var(--color-surface);
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.result-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.result-big-value {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-success);
    line-height: 1.1;
}

.result-sub-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-pill {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.85rem;
}

.stat-pill-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.stat-pill-val {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-primary);
}

.chart-container {
    width: 100%;
    height: 220px;
    margin: 1.5rem 0;
    position: relative;
}

/* Article Editorial Layout */
.article-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 3rem;
    margin-top: 2.5rem;
}

@media (max-width: 992px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
}

.article-header {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
}

.article-meta-bar {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: 1rem;
    flex-wrap: wrap;
}

.author-chip {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-primary);
}

.author-chip img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

/* Article Content & Typography */
.article-body {
    font-size: 1.125rem;
    line-height: 1.8;
    color: #1e293b;
}

.article-body p {
    margin-bottom: 1.5rem;
}

.article-body h2 {
    font-size: 1.75rem;
    margin-top: 2.75rem;
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-surface-alt);
}

.article-body h3 {
    font-size: 1.35rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.article-body ul, .article-body ol {
    margin-bottom: 1.75rem;
    padding-left: 1.5rem;
}

.article-body li {
    margin-bottom: 0.5rem;
}

.toc-box {
    background-color: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent-blue);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 2.5rem;
}

.toc-box h3 {
    margin-top: 0;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.toc-box ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
}

.toc-box li {
    margin-bottom: 0.4rem;
}

.callout {
    padding: 1.5rem;
    border-radius: var(--radius-md);
    margin: 2rem 0;
    border-left: 4px solid;
}

.callout-info {
    background-color: var(--color-accent-blue-light);
    border-color: var(--color-accent-blue);
    color: #0369a1;
}

.callout-info h4 {
    margin-top: 0;
    color: #0369a1;
}

.formula-card {
    background: #0f172a;
    color: #38bdf8;
    padding: 1.25rem 1.75rem;
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 1.1rem;
    margin: 1.5rem 0;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.4);
}

.formula-card code {
    color: inherit;
    background: none;
}

/* Code Blocks */
pre {
    background-color: #0f172a;
    color: #e2e8f0;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 1.75rem 0;
    border: 1px solid #1e293b;
}

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background-color: var(--color-surface-alt);
    padding: 0.2rem 0.4rem;
    border-radius: var(--radius-sm);
    color: #d97706;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    margin: 2rem 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    text-align: left;
}

.data-table th {
    background-color: var(--color-surface-alt);
    color: var(--color-primary);
    font-weight: 700;
    padding: 1rem 1.25rem;
    border-bottom: 2px solid var(--color-border);
}

.data-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

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

.data-table tr:hover {
    background-color: #f8fafc;
}

/* Key Takeaways Box */
.key-takeaways-box {
    background-color: #ecfdf5;
    border: 1px solid #a7f3d0;
    border-left: 5px solid var(--color-success);
    border-radius: var(--radius-md);
    padding: 1.75rem;
    margin: 2.5rem 0;
}

.key-takeaways-box h3 {
    color: #065f46;
    margin-top: 0;
    margin-bottom: 0.75rem;
}

/* FAQs */
.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.faq-item h4 {
    margin-top: 0;
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
}

.faq-item p:last-child {
    margin-bottom: 0;
}

/* Author Box */
.author-box {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-top: 3rem;
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.author-box-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.author-box-name {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.author-box-title {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.author-box-bio {
    font-size: 0.95rem;
    color: var(--color-text-main);
    margin-bottom: 0;
}

/* AdSense Slot Component */
.ad-container {
    margin: 2rem auto;
    text-align: center;
    overflow: hidden;
    transition: opacity var(--transition-fast);
}

/* Automatically hide ad container and ADVERTISEMENT label when ad is not loaded or unfilled */
.ad-container.ad-hidden,
.ad-container.ad-unfilled,
.ad-container:empty,
.ad-container:has(ins[data-ad-status="unfilled"]),
.ad-container:has(ins[style*="display: none"]),
.ad-container:has(ins[style*="display:none"]),
.ad-container:has(.ad-content-wrapper:empty) {
    display: none !important;
    margin: 0 !important;
    padding: 0 !important;
    height: 0 !important;
    min-height: 0 !important;
    visibility: hidden !important;
    overflow: hidden !important;
}

.ad-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--color-text-light);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
}

/* Newsletter Section */
.newsletter-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-lg);
    padding: 3.5rem 2.5rem;
    color: #ffffff;
    text-align: center;
    margin: 4rem 0;
}

.newsletter-card h2 {
    color: #ffffff;
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.newsletter-card p {
    color: #94a3b8;
    max-width: 600px;
    margin: 0 auto 2rem;
    font-size: 1.05rem;
}

.newsletter-form {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    max-width: 520px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.newsletter-input {
    flex: 1;
    min-width: 260px;
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid #334155;
    background-color: #0f172a;
    color: #ffffff;
    font-size: 1rem;
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--color-accent-gold);
}

/* Breadcrumbs */
.breadcrumb-nav {
    padding: 1.25rem 0;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.breadcrumb-separator {
    color: var(--color-text-light);
}

/* Footer */
.site-footer {
    background-color: var(--color-primary);
    color: #94a3b8;
    padding: 4.5rem 0 2rem;
    margin-top: auto;
    border-top: 3px solid var(--color-accent-gold);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3.5rem;
}

@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-brand h3 {
    color: #ffffff;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-col h4 {
    color: #ffffff;
    font-size: 1.05rem;
    margin-bottom: 1.25rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.65rem;
}

.footer-links a {
    color: #94a3b8;
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid #1e293b;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-legal-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.footer-legal-links a {
    color: #94a3b8;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    max-width: 540px;
    background: #0f172a;
    color: #ffffff;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    border: 1px solid #334155;
}

.cookie-banner p {
    font-size: 0.875rem;
    margin-bottom: 0;
    color: #cbd5e1;
}

.cookie-actions {
    display: flex;
    gap: 0.75rem;
}

/* Flash Messages */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

.alert-success {
    background-color: var(--color-success-light);
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background-color: var(--color-danger-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Search Modal Overlay */
.search-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
    z-index: 10000;
    padding: 4rem 1.5rem;
}

.search-modal.active {
    display: flex;
    justify-content: center;
}

.search-modal-box {
    background: #ffffff;
    width: 100%;
    max-width: 640px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 2rem;
    height: max-content;
}

/* Glossary Directory */
.alphabet-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin: 2rem 0;
}

.alpha-btn {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    font-weight: 600;
    color: var(--color-primary);
    background: #ffffff;
    transition: all var(--transition-fast);
}

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

/* Responsive adjustments */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .btn-mobile-toggle {
        display: block;
    }
    .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        padding: 1.5rem;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--color-border);
    }
}