/* ========================================
   SUPLEX - DATA-HEAVY PROOF STYLE
   Typography: DM Sans, JetBrains Mono, Outfit
   Colors: White base, #228B22 green, #FFE135 yellow
   ======================================== */

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

:root {
    --white: #FFFFFF;
    --off-white: #FAFAFA;
    --light-gray: #F5F5F5;
    --mid-gray: #E0E0E0;
    --dark-gray: #333333;
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --green: #228B22;
    --green-light: #2ECC71;
    --green-dark: #1A6B1A;
    --yellow: #FFE135;
    --yellow-light: #FFF3A0;
    --red: #DC3545;
    
    /* Typography */
    --font-headline: 'DM Sans', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-display: 'Outfit', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--white);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ========================================
   TYPOGRAPHY WITH FULL-WORD KERNING
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headline);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* Display numbers - geometric, impactful */
.display-number {
    font-family: var(--font-display);
    font-weight: 800;
    letter-spacing: -0.03em;
}

/* Stats - tabular, technical */
.stat-number {
    font-family: var(--font-mono);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.01em;
}

/* Data tables */
.data-table {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
}

/* Kerning utilities - "sand flows evenly" */
.kern-tight { letter-spacing: -0.05em; }
.kern-normal { letter-spacing: 0; }
.kern-wide { letter-spacing: 0.02em; }

/* Word-level kerning adjustments */
.word-optical {
    display: inline-block;
}

.word-optical::first-letter {
    letter-spacing: 0;
}

/* ========================================
   NAVIGATION
   ======================================== */

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--mid-gray);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo span {
    color: var(--green);
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--green);
}

.nav-cta {
    background: var(--green);
    color: var(--white) !important;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    padding: 10rem 2rem 6rem;
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--yellow-light);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.hero-badge::before {
    content: "📊";
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 1.5rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero h1 .highlight {
    background: linear-gradient(180deg, transparent 60%, var(--yellow) 60%);
    padding: 0 0.2em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.7;
}

/* ========================================
   DATA CARDS & STATS
   ======================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.stat-card {
    background: var(--white);
    border: 1px solid var(--mid-gray);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.stat-card .number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    color: var(--green);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-card .number.negative {
    color: var(--red);
}

.stat-card .label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-card .change {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    background: rgba(34, 139, 34, 0.1);
    color: var(--green);
}

.stat-card .change.negative {
    background: rgba(220, 53, 69, 0.1);
    color: var(--red);
}

/* ========================================
   CHARTS & GRAPHS (CSS-BASED)
   ======================================== */

.chart-container {
    background: var(--white);
    border: 1px solid var(--mid-gray);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin: 2rem 0;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.chart-title {
    font-size: 1.1rem;
    font-weight: 700;
}

.chart-legend {
    display: flex;
    gap: 1.5rem;
    font-size: 0.85rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}

/* Bar Chart */
.bar-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 250px;
    padding: 1rem 0;
    border-bottom: 2px solid var(--mid-gray);
    position: relative;
}

.bar-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    max-width: 80px;
}

.bar {
    width: 100%;
    background: linear-gradient(180deg, var(--green-light) 0%, var(--green) 100%);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    position: relative;
    transition: height 1s ease-out;
    min-height: 4px;
}

.bar.secondary {
    background: linear-gradient(180deg, var(--mid-gray) 0%, var(--dark-gray) 100%);
}

.bar-value {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.bar-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Horizontal Bar Chart */
.hbar-chart {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.hbar-row {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.hbar-label {
    width: 120px;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: right;
}

.hbar-track {
    flex: 1;
    height: 32px;
    background: var(--light-gray);
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
}

.hbar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--green) 0%, var(--green-light) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 0.75rem;
    transition: width 1s ease-out;
}

.hbar-fill.secondary {
    background: linear-gradient(90deg, var(--dark-gray) 0%, var(--mid-gray) 100%);
}

.hbar-value {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white);
}

/* Line Chart (SVG) */
.line-chart-svg {
    width: 100%;
    height: 300px;
}

/* Donut Chart */
.donut-chart {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    position: relative;
    background: conic-gradient(
        var(--green) 0deg var(--value-1, 120deg),
        var(--yellow) var(--value-1, 120deg) var(--value-2, 200deg),
        var(--mid-gray) var(--value-2, 200deg) 360deg
    );
}

.donut-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140px;
    height: 140px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.donut-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--green);
    line-height: 1;
}

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

/* ========================================
   ROI CALCULATOR
   ======================================== */

.calculator-section {
    background: var(--light-gray);
    padding: var(--space-xl) 2rem;
}

.calculator-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

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

.calculator-inputs {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.calc-field {
    margin-bottom: 1.5rem;
}

.calc-field label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.calc-field input,
.calc-field select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--mid-gray);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.calc-field input:focus,
.calc-field select:focus {
    outline: none;
    border-color: var(--green);
}

.calc-field .hint {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.calculator-results {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.result-card {
    background: var(--white);
    padding: 1.5rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--green);
}

.result-card.highlight {
    background: var(--green);
    color: var(--white);
    border-left: none;
}

.result-card.highlight .result-value {
    color: var(--white);
}

.result-label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

.result-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--green);
    line-height: 1;
}

/* Range Slider */
.range-container {
    margin-top: 0.5rem;
}

.range-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--mid-gray);
    outline: none;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--green);
    cursor: pointer;
    border: 3px solid var(--white);
    box-shadow: var(--shadow-sm);
}

.range-value {
    display: inline-block;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--green);
    margin-left: 0.5rem;
}

/* ========================================
   DATA TABLES
   ======================================== */

.data-table-container {
    overflow-x: auto;
    margin: 2rem 0;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

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

.data-table th {
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    background: var(--light-gray);
}

.data-table tr:hover td {
    background: var(--light-gray);
}

.data-table .number-cell {
    font-family: var(--font-mono);
    font-weight: 600;
    text-align: right;
}

.data-table .positive {
    color: var(--green);
}

.data-table .negative {
    color: var(--red);
}

/* ========================================
   BEFORE/AFTER COMPARISON
   ======================================== */

.comparison-section {
    padding: var(--space-xl) 2rem;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

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

.comparison-card {
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    position: relative;
}

.comparison-card.before {
    background: var(--light-gray);
    border: 2px solid var(--mid-gray);
}

.comparison-card.after {
    background: var(--white);
    border: 2px solid var(--green);
    box-shadow: var(--shadow-lg);
}

.comparison-badge {
    position: absolute;
    top: -12px;
    left: 2rem;
    padding: 0.25rem 1rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comparison-card.before .comparison-badge {
    background: var(--mid-gray);
    color: var(--text-secondary);
}

.comparison-card.after .comparison-badge {
    background: var(--green);
    color: var(--white);
}

.comparison-metric {
    margin: 1.5rem 0;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--mid-gray);
}

.comparison-card.after .comparison-metric {
    border-bottom-color: rgba(34, 139, 34, 0.2);
}

.comparison-metric:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.comparison-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.comparison-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.comparison-card.after .comparison-value {
    color: var(--green);
}

/* ========================================
   TRUST BADGES & SOCIAL PROOF
   ======================================== */

.trust-section {
    padding: var(--space-lg) 2rem;
    background: var(--light-gray);
}

.trust-badges {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
    max-width: 1000px;
    margin: 0 auto;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.trust-badge:hover {
    opacity: 1;
}

.trust-badge-icon {
    width: 40px;
    height: 40px;
    background: var(--white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.trust-badge-text {
    font-size: 0.85rem;
    font-weight: 600;
}

/* Social Proof Wall */
.social-proof {
    padding: var(--space-xl) 2rem;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--white);
    border: 1px solid var(--mid-gray);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    position: relative;
}

.testimonial-card::before {
    content: """;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 4rem;
    color: var(--light-gray);
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-stats {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--mid-gray);
}

.testimonial-stat {
    text-align: center;
}

.testimonial-stat-value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--green);
}

.testimonial-stat-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.testimonial-text {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

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

.testimonial-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--green);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
}

.testimonial-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.testimonial-title {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ========================================
   CASE STUDY SNIPPETS
   ======================================== */

.case-study-section {
    padding: var(--space-xl) 2rem;
}

.case-study-card {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--white);
    border: 1px solid var(--mid-gray);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 200px 1fr;
}

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

.case-study-sidebar {
    background: var(--green);
    color: var(--white);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.5rem;
}

.case-study-metric {
    text-align: center;
}

.case-study-metric-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
}

.case-study-metric-label {
    font-size: 0.8rem;
    opacity: 0.9;
    margin-top: 0.25rem;
}

.case-study-content {
    padding: 2rem;
}

.case-study-company {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.case-study-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.case-study-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.case-study-list {
    list-style: none;
}

.case-study-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.case-study-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--green);
    font-weight: 700;
}

/* ========================================
   SECTION HEADERS
   ======================================== */

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-lg);
}

.section-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--green);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ========================================
   CTA SECTIONS
   ======================================== */

.cta-section {
    padding: var(--space-xl) 2rem;
    text-align: center;
    background: var(--text-primary);
    color: var(--white);
}

.cta-section .section-title {
    color: var(--white);
}

.cta-section .section-subtitle {
    color: rgba(255,255,255,0.7);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary {
    background: var(--green);
    color: var(--white);
}

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

.btn-yellow {
    background: var(--yellow);
    color: var(--text-primary);
}

.btn-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

/* ========================================
   PROGRESS INDICATORS
   ======================================== */

.progress-ring {
    width: 120px;
    height: 120px;
}

.progress-ring-circle {
    transition: stroke-dashoffset 1s ease-out;
    transform: rotate(-90deg);
    transform-origin: 50% 50%;
}

.metric-with-progress {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.metric-info {
    flex: 1;
}

.metric-percentage {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--green);
}

/* ========================================
   TOOLTIPS & INFO
   ======================================== */

.info-tooltip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: var(--mid-gray);
    border-radius: 50%;
    font-size: 0.7rem;
    color: var(--text-secondary);
    cursor: help;
    margin-left: 0.5rem;
}

/* ========================================
   ANIMATIONS
   ======================================== */

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

.animate-in {
    animation: countUp 0.5s ease-out forwards;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes slideIn {
    from { transform: translateX(-20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.slide-in {
    animation: slideIn 0.5s ease-out forwards;
}

/* ========================================
   FOOTER
   ======================================== */

footer {
    padding: var(--space-lg) 2rem;
    background: var(--light-gray);
    border-top: 1px solid var(--mid-gray);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
}

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

.footer-copy {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }

.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }

.highlight-box {
    background: var(--yellow-light);
    border-left: 4px solid var(--yellow);
    padding: 1rem 1.5rem;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.data-highlight {
    background: rgba(34, 139, 34, 0.1);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--green);
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .nav-links { display: none; }
}