/* CSS Design Tokens matching parent site style */
:root {
    /* Light Mode Palette */
    --bg-primary: #F8FAFC;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #F1F5F9;
    --border-color: rgba(15, 23, 42, 0.08);
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #64748B;
    
    --accent: #1D4ED8;
    --accent-rgb: 29, 78, 216;
    --accent-dark: #1E40AF;
    --accent-light: #EFF6FF;
    
    /* DTI Indicator Colors */
    --color-green: #10B981;
    --color-yellow: #F59E0B;
    --color-red: #EF4444;
    
    --card-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.02);
    --font-headings: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html.dark {
    /* Dark Mode Palette */
    --bg-primary: #080D1A;
    --bg-secondary: #0F172A;
    --bg-tertiary: #1E293B;
    --border-color: rgba(255, 255, 255, 0.06);
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    
    --accent: #3B82F6;
    --accent-rgb: 59, 130, 246;
    --accent-dark: #1D4ED8;
    --accent-light: rgba(59, 130, 246, 0.15);
    
    --card-shadow: 0 10px 35px -12px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.3);
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4 {
    font-family: var(--font-headings);
    color: var(--text-primary);
    font-weight: 700;
}

a {
    transition: var(--transition);
}

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

/* ==========================================
   Header Navbar Layout
   ========================================== */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

html.dark header {
    background-color: rgba(15, 23, 42, 0.75);
}

html:not(.dark) header {
    background-color: rgba(255, 255, 255, 0.75);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.85rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.back-link {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.4rem 0.85rem;
    border-radius: 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
}

.back-link:hover {
    color: var(--accent);
    background: var(--border-color);
    transform: translateX(-2px);
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-primary);
    font-family: var(--font-headings);
    font-weight: 800;
    font-size: 1.25rem;
}

.logo-icon {
    width: 28px;
    height: 28px;
    background-color: var(--accent);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-family: var(--font-headings);
    font-weight: 800;
    font-size: 1.05rem;
    box-shadow: 0 2px 8px rgba(var(--accent-rgb), 0.3);
    transition: var(--transition);
}

.logo-link:hover .logo-icon {
    transform: rotate(-8deg) scale(1.05);
}

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

.theme-toggle-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 38px;
    height: 38px;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    background-color: var(--bg-tertiary);
}

.theme-toggle-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: scale(1.05);
}

.sun-icon { display: none; }
.moon-icon { display: block; width: 18px; height: 18px; }

html.dark .sun-icon { display: block; width: 18px; height: 18px; }
html.dark .moon-icon { display: none; }

/* ==========================================
   Navigation Tabs
   ========================================== */
.navigation-bar {
    max-width: 1200px;
    margin: 1.5rem auto 0 auto;
    padding: 0 1.5rem;
    display: flex;
    gap: 0.5rem;
}

.tab-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: var(--font-headings);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.6rem 1.25rem;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-1px);
}

.tab-btn.active {
    background: var(--accent);
    color: #FFFFFF;
    border-color: var(--accent);
}

/* ==========================================
   Hero Section
   ========================================== */
.calculator-hero {
    padding: 3rem 1.5rem 1.5rem 1.5rem;
    text-align: center;
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.85rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, #64748B 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

html.dark .hero-title {
    background: linear-gradient(135deg, #F8FAFC 0%, #94A3B8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

/* ==========================================
   Main Content Layout
   ========================================== */
.main-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 1.5rem;
    flex-grow: 1;
}

.calculator-section {
    display: grid;
    grid-template-columns: 1.1fr 1.4fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

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

.left-panel, .right-panel {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* ==========================================
   Card Styling
   ========================================== */
.panel-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2rem;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: relative;
    overflow: hidden;
}

.card-header-title {
    font-size: 1.35rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1.5px solid var(--border-color);
    padding-bottom: 0.85rem;
}

.card-header-emoji {
    font-size: 1.5rem;
}

/* ==========================================
   Form Styling (Inputs)
   ========================================== */
.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

@media (max-width: 576px) {
    .input-grid {
        grid-template-columns: 1fr;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.label-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.label-info {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.input-container {
    position: relative;
    display: flex;
    align-items: center;
    border-radius: 12px;
    border: 1.5px solid var(--border-color);
    background-color: var(--bg-primary);
    transition: var(--transition);
}

.input-container:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.input-prefix, .input-suffix {
    padding: 0 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.95rem;
    user-select: none;
}

.input-container input {
    width: 100%;
    background: transparent;
    border: none;
    padding: 0.8rem 0.5rem;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.input-container input:focus {
    outline: none;
}

.input-container input[readonly] {
    cursor: not-allowed;
    color: var(--text-muted);
}

/* Down Payment Double Input (Sync) */
.dual-input-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 0.5rem;
}

/* Range Sliders */
.slider-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    transition: background 0.3s;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    border: none;
    transition: transform 0.1s;
}

input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.15);
}

/* Loan Term Toggle Button Group */
.toggle-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: var(--bg-tertiary);
    border-radius: 12px;
    padding: 0.25rem;
    border: 1px solid var(--border-color);
}

.toggle-btn {
    background: transparent;
    border: none;
    padding: 0.7rem 0;
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.toggle-btn:hover {
    color: var(--text-primary);
}

.toggle-btn.active {
    background: var(--bg-secondary);
    color: var(--accent);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

html.dark .toggle-btn.active {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* PMI conditional display container */
.pmi-conditional-wrapper {
    transition: max-height 0.4s ease, opacity 0.4s ease, margin 0.4s ease;
    max-height: 200px;
    opacity: 1;
}

.pmi-conditional-wrapper.hidden {
    max-height: 0;
    opacity: 0;
    margin: 0;
    padding: 0;
    overflow: hidden;
    pointer-events: none;
}

/* ==========================================
   Results Widgets
   ========================================== */
.budget-tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    background-color: var(--bg-tertiary);
    border-radius: 16px;
    padding: 0.35rem;
    border: 1.5px solid var(--border-color);
    margin-bottom: 0.5rem;
}

.budget-tab {
    background: transparent;
    border: none;
    padding: 0.6rem 0.25rem;
    font-family: var(--font-headings);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.budget-tab:hover {
    color: var(--text-primary);
}

.budget-tab.active {
    background: var(--bg-secondary);
    color: var(--accent);
    font-weight: 700;
    box-shadow: 0 3px 8px rgba(0,0,0,0.05);
}

html.dark .budget-tab.active {
    box-shadow: 0 3px 8px rgba(0,0,0,0.3);
}

.budget-hero-display {
    text-align: center;
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.04) 0%, rgba(var(--accent-rgb), 0.08) 100%);
    border-radius: 20px;
    padding: 1.75rem;
    border: 1.5px solid rgba(var(--accent-rgb), 0.1);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.budget-hero-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.budget-hero-val {
    font-size: clamp(2.2rem, 6vw, 3.25rem);
    font-weight: 800;
    color: var(--accent);
    line-height: 1.1;
    font-family: var(--font-headings);
    letter-spacing: -0.03em;
}

.budget-hero-subval {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* DTI Gauges */
.dti-card-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

@media (max-width: 576px) {
    .dti-card-section {
        grid-template-columns: 1fr;
    }
}

.dti-gauge-card {
    background: var(--bg-tertiary);
    border-radius: 16px;
    padding: 1.25rem;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    text-align: center;
}

.dti-gauge-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.dti-gauge-svg-wrapper {
    position: relative;
    width: 100px;
    height: 60px;
    display: flex;
    justify-content: center;
}

.dti-gauge-svg {
    transform: rotate(-180deg);
}

.dti-gauge-bg-path {
    fill: none;
    stroke: var(--border-color);
    stroke-width: 10;
    stroke-linecap: round;
}

.dti-gauge-fill-path {
    fill: none;
    stroke: var(--color-green);
    stroke-width: 10;
    stroke-linecap: round;
    stroke-dasharray: 126; /* Circumference of r=40 is 251.3, semicircle is 125.6 */
    stroke-dashoffset: 126; 
    transition: stroke-dashoffset 0.8s ease, stroke 0.4s ease;
}

.dti-gauge-text {
    position: absolute;
    bottom: 0;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-primary);
    font-family: var(--font-headings);
}

.dti-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: 9999px;
    color: #FFFFFF;
    background-color: var(--color-green);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    transition: var(--transition);
}

.dti-badge.green { background-color: var(--color-green); }
.dti-badge.yellow { background-color: var(--color-yellow); }
.dti-badge.red { background-color: var(--color-red); }

/* ==========================================
   Breakdown & Charts
   ========================================== */
.breakdown-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.85rem 0;
    border-bottom: 1px dashed var(--border-color);
}

.breakdown-row:last-child {
    border-bottom: none;
    padding-top: 1rem;
    font-size: 1.1rem;
    font-weight: 8500;
}

.breakdown-label {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.breakdown-color-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.breakdown-val {
    font-weight: 700;
    font-family: var(--font-headings);
}

.breakdown-row.total-row {
    border-top: 2px solid var(--border-color);
    border-bottom: none;
    font-weight: 750;
    color: var(--text-primary);
}

.breakdown-row.total-row .breakdown-label {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.05rem;
}

.breakdown-row.total-row .breakdown-val {
    font-size: 1.25rem;
    color: var(--accent);
}

/* Custom Interactive SVG Donut Chart */
.chart-box {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 0;
}

.donut-svg-wrapper {
    position: relative;
    width: 200px;
    height: 200px;
}

.donut-svg-ring {
    transform: rotate(-90deg);
}

.donut-bg-circle {
    fill: none;
    stroke: var(--bg-tertiary);
    stroke-width: 24;
}

.donut-segment {
    fill: none;
    stroke-width: 24;
    cursor: pointer;
    transition: stroke-width 0.2s ease, opacity 0.2s ease;
}

.donut-segment:hover {
    stroke-width: 28;
    opacity: 0.9;
}

.donut-center-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
    width: 120px;
}

.donut-center-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.donut-center-value {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--text-primary);
    font-family: var(--font-headings);
    line-height: 1.25;
}

/* ==========================================
   Scenario Side-by-Side Comparison & Bar Chart
   ========================================== */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

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

.comparison-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    position: relative;
    transition: var(--transition);
}

.comparison-card.recommended {
    border-color: rgba(var(--accent-rgb), 0.3);
    background: linear-gradient(180deg, var(--bg-tertiary) 0%, rgba(var(--accent-rgb), 0.03) 100%);
}

.comparison-card.recommended::before {
    content: 'RECOMMENDED';
    position: absolute;
    top: 0;
    right: 1.25rem;
    transform: translateY(-50%);
    background: var(--accent);
    color: #FFFFFF;
    font-size: 0.65rem;
    font-weight: 800;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    letter-spacing: 0.05em;
}

.comp-scenario-name {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.comp-price-val {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--text-primary);
    font-family: var(--font-headings);
    line-height: 1.15;
}

.comp-details-list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    font-size: 0.82rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    padding-top: 0.65rem;
}

.comp-detail-row {
    display: flex;
    justify-content: space-between;
}

.comp-detail-row span:last-child {
    font-weight: 700;
    color: var(--text-primary);
}

/* SVG Bar Chart */
.bar-chart-wrapper {
    width: 100%;
    margin-top: 1rem;
    background: var(--bg-tertiary);
    border-radius: 16px;
    padding: 1.25rem;
    border: 1px solid var(--border-color);
}

.bar-chart-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.bar-chart-svg {
    width: 100%;
    height: auto;
    overflow: visible;
}

.bar-rect {
    fill: var(--accent);
    rx: 4;
    ry: 4;
    cursor: pointer;
    transition: opacity 0.2s, fill 0.2s;
}

.bar-rect:hover {
    opacity: 0.85;
}

.bar-rect.cons-bar { fill: var(--color-green); }
.bar-rect.mod-bar { fill: var(--accent); }
.bar-rect.agg-bar { fill: var(--color-red); }

.bar-text-val {
    font-family: var(--font-headings);
    font-size: 11px;
    font-weight: 700;
    fill: var(--text-primary);
    text-anchor: middle;
}

.bar-label-text {
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 600;
    fill: var(--text-secondary);
    text-anchor: middle;
}

.bar-gridline {
    stroke: var(--border-color);
    stroke-width: 1;
    stroke-dasharray: 4;
}

/* ==========================================
   Home Price Adjuster Slider Widget
   ========================================== */
.adjuster-card {
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.01) 0%, rgba(var(--accent-rgb), 0.03) 100%);
    border-color: rgba(var(--accent-rgb), 0.15);
}

.adjuster-label-block {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.adjuster-val-display {
    font-size: 1.65rem;
    font-weight: 800;
    color: var(--accent);
    font-family: var(--font-headings);
}

/* ==========================================
   FAQ Section
   ========================================== */
.faq-container {
    max-width: 1200px;
    margin: 0 auto 5rem auto;
    padding: 0 1.5rem;
}

.faq-title {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 2rem;
    text-align: center;
}

.faq-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 850px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.faq-question-btn {
    width: 100%;
    background: none;
    border: none;
    padding: 1.25rem 1.5rem;
    text-align: left;
    font-family: var(--font-headings);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
}

.faq-question-btn:hover {
    color: var(--accent);
}

.faq-chevron {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-chevron {
    transform: rotate(180deg);
    color: var(--accent);
}

.faq-answer {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.35s ease, padding 0.35s ease;
    padding: 0 1.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.faq-item.active .faq-answer {
    max-height: 400px; /* Large enough for the content */
    opacity: 1;
    padding: 0 1.5rem 1.25rem 1.5rem;
    border-top: 1.5px solid var(--border-color);
    margin-top: 0;
}

/* ==========================================
   SEO Content Section
   ========================================== */
.seo-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
    border-top: 1.5px solid var(--border-color);
}

.seo-article {
    max-width: 850px;
    margin: 0 auto;
    font-size: 1rem;
    line-height: 1.75;
    color: var(--text-secondary);
}

.seo-article h2 {
    font-size: 2rem;
    font-weight: 800;
    margin: 2.5rem 0 1.25rem 0;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.seo-article h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin: 2rem 0 1rem 0;
    color: var(--text-primary);
}

.seo-article p {
    margin-bottom: 1.25rem;
}

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

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

.seo-article strong {
    color: var(--text-primary);
}

.seo-highlight-box {
    background-color: var(--bg-tertiary);
    border-left: 4px solid var(--accent);
    padding: 1.5rem;
    border-radius: 0 16px 16px 0;
    margin: 1.5rem 0;
}

.seo-table-wrapper {
    overflow-x: auto;
    margin: 1.5rem 0;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

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

.seo-table th, .seo-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.seo-table th {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-weight: 700;
}

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

.seo-table td strong {
    color: var(--accent);
}

/* ==========================================
   Footer Layout
   ========================================== */
footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 1.5rem;
    margin-top: auto;
    transition: var(--transition);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}

.footer-brand {
    font-family: var(--font-headings);
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--text-primary);
}

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

.footer-link {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.footer-link:hover {
    color: var(--accent);
}

.footer-copyright {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    .navigation-bar {
        justify-content: center;
        flex-wrap: wrap;
    }
    .footer-links {
        gap: 1.25rem;
    }
    .panel-card {
        padding: 1.5rem;
    }
}