/* Dutch-focused Design for SureConv - Complete Version */
:root {
    /* Enhanced Dutch color palette */
    --primary-orange: #FF6B35;
    --primary-blue: #0066CC;
    --royal-blue: #003399;
    --dutch-red: #E53935;
    --success-green: #2E7D32;
    --warning-amber: #FF8F00;
    
    /* Better contrast colors for links */
    --link-blue: #0052A3;
    --link-hover: #003D7A;
    --accent-orange: #FF4500;
    --soft-orange: #FFF4F0;
    --light-blue: #E6F2FF;
    
    /* Neutral colors with better contrast */
    --white: #FFFFFF;
    --light-gray: #F8FAFC;
    --medium-gray: #E2E8F0;
    --dark-gray: #475569;
    --text-dark: #0F172A;
    --text-medium: #334155;
    --text-light: #64748B;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-accent: 'Poppins', sans-serif;
    
    /* Enhanced spacing system */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 5rem;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Enhanced shadows */
    --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.1), 0 1px 2px 0 rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.1), 0 2px 4px -1px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -2px rgba(15, 23, 42, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
}

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

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* Enhanced Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-accent);
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-dark);
    margin-bottom: var(--space-sm);
}

h1 {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: var(--space-md);
}

h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    margin-bottom: var(--space-sm);
    color: #0d1220;
    font-size: 1.05rem;
}

p.tagline {
    color: #fff;
}

.katex-display>.katex {
    display: block;
    text-align: center;
    white-space: nowrap;
    color: black;
}

/* Enhanced link styles with better contrast */
a {
    color: var(--link-blue);
    text-decoration: none;
    transition: all 0.2s ease;
    font-weight: 500;
}

a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Dutch-inspired hero header */
.hero-header {
    background: linear-gradient(135deg, 
        var(--dutch-red) 0%, 
        var(--white) 25%, 
        var(--white) 75%, 
        var(--primary-blue) 100%);
    position: relative;
    overflow: hidden;
    padding: var(--space-3xl) 0 var(--space-2xl);
}

.header-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 102, 204, 0.1) 0%, transparent 50%);
}

.hero-header .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.brand-section {
    text-align: left;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.logo-icon {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--primary-orange), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo h1 {
    margin: 0;
    background: linear-gradient(135deg, var(--text-dark), var(--primary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-tagline {
    font-size: 1.25rem;
    color: var(--text-medium);
    font-weight: 500;
    margin-bottom: 0;
}

.hero-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.stat-item {
    text-align: center;
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-orange);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-blue);
    font-family: var(--font-accent);
}

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

/* Enhanced navigation */
.main-nav {
    background: var(--white);
    border-bottom: 3px solid var(--primary-orange);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    color: var(--text-dark);
}

.nav-icon {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    gap: 0;
}

.nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    color: var(--text-dark);
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
    text-decoration: none;
    font-weight: 500;
    min-width: 100px;
}

.nav-link:hover {
    background: var(--light-blue);
    color: var(--link-blue);
    border-bottom-color: var(--primary-blue);
    text-decoration: none;
}

.nav-link.active {
    background: var(--primary-blue);
    color: var(--white);
    border-bottom-color: var(--primary-orange);
}

.nav-emoji {
    font-size: 1.25rem;
    margin-bottom: 2px;
}

/* Main content */
main {
    padding: var(--space-2xl) 0;
    background: var(--light-gray);
}

/* Section headers */
.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-header h2 {
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-orange), var(--primary-blue));
    border-radius: 2px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-top: var(--space-sm);
}

/* Quick converter section */
.quick-converter {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    margin-bottom: var(--space-3xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--medium-gray);
}

.converter-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.tab-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    background: var(--light-gray);
    border: 2px solid var(--medium-gray);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    color: var(--text-medium);
    min-width: 120px;
}

.tab-btn:hover {
    background: var(--light-blue);
    border-color: var(--primary-blue);
    color: var(--link-blue);
}

.tab-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.tab-icon {
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.quick-form {
    background: var(--light-gray);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.form-row {
    display: grid;
    grid-template-columns: 2fr 2fr auto 2fr 1fr;
    gap: var(--space-lg);
    align-items: end;
    margin-bottom: var(--space-lg);
}

.input-group {
    display: flex;
    flex-direction: column;
}

.input-group label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--space-xs);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-group input,
.input-group select {
    padding: var(--space-md);
    border: 2px solid var(--medium-gray);
    border-radius: var(--radius-md);
    background: var(--white);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all 0.3s ease;
    color: var(--text-dark);
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.swap-section {
    display: flex;
    align-items: end;
}

.swap-btn {
    background: var(--primary-orange);
    color: var(--white);
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.swap-btn:hover {
    background: var(--accent-orange);
    transform: rotate(180deg);
}

.convert-group {
    display: flex;
    align-items: end;
}

.convert-btn {
    background: linear-gradient(135deg, var(--primary-blue), var(--royal-blue));
    color: var(--white);
    border: none;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    white-space: nowrap;
}

.convert-btn:hover {
    background: linear-gradient(135deg, var(--royal-blue), var(--primary-blue));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-icon {
    font-size: 1.125rem;
}

.quick-result {
    background: var(--success-green);
    color: var(--white);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    margin-top: var(--space-lg);
}

.result-content {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
}

.result-text {
    font-weight: 500;
}

.result-value {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-accent);
}

.result-link {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.result-link:hover {
    color: var(--white);
    text-decoration: none;
}

/* Popular section with Dutch context */
.popular-section {
    margin-bottom: var(--space-3xl);
}

.popular-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.popular-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--medium-gray);
    transition: all 0.3s ease;
}

.popular-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.card-icon {
    font-size: 2rem;
    padding: var(--space-sm);
    background: var(--soft-orange);
    border-radius: var(--radius-md);
}

.card-header h3 {
    margin: 0;
    color: var(--text-dark);
}

.card-desc {
    color: var(--text-light);
    margin-bottom: var(--space-lg);
    font-size: 0.95rem;
}

.popular-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.pop-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    background: var(--light-gray);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    color: var(--link-blue);
    font-weight: 600;
}

.pop-link:hover {
    background: var(--light-blue);
    border-color: var(--primary-blue);
    text-decoration: none;
    transform: translateX(4px);
    color: var(--link-hover);
}

.link-context {
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: 400;
}

/* Enhanced converters overview */
.converters-overview {
    margin-bottom: var(--space-3xl);
}

.converters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.converter-item {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    box-shadow: var(--shadow-lg);
    border: 2px solid transparent;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
}

.converter-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary-blue);
    text-decoration: none;
    color: inherit;
}

.converter-item.featured {
    border-color: var(--primary-orange);
    background: linear-gradient(135deg, var(--white) 0%, var(--soft-orange) 100%);
}

.converter-item.coming-soon {
    opacity: 0.6;
    cursor: not-allowed;
}

.converter-item.coming-soon:hover {
    transform: none;
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.converter-icon-bg {
    background: linear-gradient(135deg, var(--light-blue), var(--soft-orange));
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    flex-shrink: 0;
}

.converter-icon {
    font-size: 2rem;
    display: block;
}

.converter-content {
    flex: 1;
}

.converter-content h3 {
    margin-bottom: var(--space-xs);
    color: var(--text-dark);
}

.converter-content p {
    color: var(--text-light);
    margin-bottom: var(--space-sm);
    font-size: 0.95rem;
}

.converter-examples {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.converter-examples span {
    background: var(--medium-gray);
    color: var(--text-medium);
    padding: 2px var(--space-xs);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.converter-arrow {
    font-size: 1.5rem;
    color: var(--primary-blue);
    font-weight: bold;
    flex-shrink: 0;
}

.featured-badge,
.coming-soon-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: 4px var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.featured-badge {
    background: var(--primary-orange);
    color: var(--white);
}

.coming-soon-badge {
    background: var(--warning-amber);
    color: var(--white);
}

/* Why choose section */
.why-choose {
    margin-bottom: var(--space-3xl);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.benefit-item {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--medium-gray);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
    display: block;
}

.benefit-item h3 {
    color: var(--text-dark);
    margin-bottom: var(--space-md);
}

.benefit-item p {
    color: var(--text-light);
    margin-bottom: var(--space-md);
}

.benefit-detail {
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-block;
}

/* Testimonials section */
.testimonials {
    margin-bottom: var(--space-3xl);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.testimonial-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--primary-orange);
}

.testimonial-content {
    margin-bottom: var(--space-lg);
}

.testimonial-content p {
    font-style: italic;
    color: var(--text-medium);
    font-size: 1.05rem;
    margin: 0;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.author-avatar {
    font-size: 2rem;
    width: 50px;
    height: 50px;
    background: var(--light-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-info strong {
    display: block;
    color: var(--text-dark);
    font-weight: 600;
}

.author-info span {
    color: var(--text-light);
    font-size: 0.9rem;
}

.testimonial-rating {
    text-align: center;
    font-size: 1.25rem;
}

/* Enhanced footer */
.main-footer {
    background: var(--text-dark);
    color: var(--white);
    padding: var(--space-3xl) 0 var(--space-xl);
    margin-top: var(--space-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    padding-right: var(--space-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.footer-icon {
    font-size: 2rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-md);
}

.footer-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-stats span {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-column h4 {
    color: var(--white);
    margin-bottom: var(--space-md);
    font-size: 1.125rem;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-sm);
    transition: color 0.3s ease;
    font-weight: 400;
}

.footer-column a:hover {
    color: var(--primary-orange);
    text-decoration: none;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.footer-badges {
    display: flex;
    gap: var(--space-md);
}

.badge {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
}

/* Legacy styles for area converter pages */
.result-display {
    background: linear-gradient(135deg, var(--success-green), #388E3C);
    color: var(--white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    margin-bottom: var(--space-2xl);
    box-shadow: var(--shadow-lg);
}

.result-display h2 {
    color: var(--white);
    margin-bottom: var(--space-md);
    font-size: 1.5rem;
}

.result-display .result-value {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-accent);
    margin-bottom: var(--space-sm);
    line-height: 1.2;
}

.result-display .result-text {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 0;
}

.info-section {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-orange);
}

.info-section h2,
.info-section h3 {
    color: var(--text-dark);
}

.info-section h2 {
    border-bottom: 2px solid var(--light-blue);
    padding-bottom: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.formula-box {
    background: var(--light-gray);
    border: 2px solid var(--primary-blue);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin: var(--space-lg) 0;
    font-family: 'Courier New', monospace;
    text-align: center;
}

.conversion-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin: var(--space-lg) 0;
}

.conversion-table th {
    background: linear-gradient(135deg, var(--primary-blue), var(--royal-blue));
    color: var(--white);
    padding: var(--space-md);
    text-align: left;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.875rem;
}

.conversion-table td {
    padding: var(--space-md);
    border-bottom: 1px solid var(--medium-gray);
    background: var(--white);
}

.conversion-table tr:nth-child(even) td {
    background: var(--light-gray);
}

.conversion-table tr:hover td {
    background: var(--light-blue);
}

.conversion-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
margin-top: var(--space-lg);
}
.conversion-links a {
background: var(--white);
border: 2px solid var(--medium-gray);
border-radius: var(--radius-md);
padding: var(--space-md);
display: block;
transition: all 0.3s ease;
font-weight: 500;
text-align: center;
color: var(--link-blue);
}
.conversion-links a:hover {
border-color: var(--primary-blue);
background: var(--light-blue);
transform: translateY(-2px);
box-shadow: var(--shadow-md);
text-decoration: none;
color: var(--link-hover);
}
.converter-widget {
background: linear-gradient(135deg, var(--light-blue) 0%, var(--soft-orange) 100%);
border-radius: var(--radius-xl);
padding: var(--space-xl);
margin-bottom: var(--space-2xl);
box-shadow: var(--shadow-lg);
}
.converter-widget h2 {
text-align: center;
color: var(--text-dark);
margin-bottom: var(--space-xl);
font-size: 1.75rem;
}
.converter-widget .input-group {
display: flex;
flex-direction: column;
}
.converter-widget .input-wrapper {
display: flex;
flex-direction: column;
}
.converter-widget .input-wrapper label {
font-weight: 600;
color: var(--text-dark);
margin-bottom: var(--space-xs);
font-size: 0.9rem;
text-transform: uppercase;
letter-spacing: 0.5px;
}
.converter-widget .input-wrapper input,
.converter-widget .input-wrapper select {
padding: var(--space-md);
border: 2px solid var(--medium-gray);
border-radius: var(--radius-md);
background: var(--white);
font-size: 1rem;
font-family: var(--font-primary);
transition: all 0.3s ease;
color: var(--text-dark);
}
.converter-widget .input-wrapper input:focus,
.converter-widget .input-wrapper select:focus {
outline: none;
border-color: var(--primary-blue);
box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}
.converter-widget .input-group {
display: grid;
grid-template-columns: 2fr 2fr auto 2fr;
gap: var(--space-md);
align-items: end;
margin-bottom: var(--space-lg);
}
.converter-widget .swap-button {
background: var(--primary-orange);
color: var(--white);
border: none;
border-radius: 50%;
width: 48px;
height: 48px;
font-size: 1.25rem;
cursor: pointer;
transition: all 0.3s ease;
align-self: end;
margin-bottom: 2px;
}
.converter-widget .swap-button:hover {
background: var(--accent-orange);
transform: rotate(180deg);
}
.converter-widget .convert-button {
background: linear-gradient(135deg, var(--primary-blue), var(--royal-blue));
color: var(--white);
border: none;
padding: var(--space-md) var(--space-xl);
border-radius: var(--radius-md);
font-size: 1.125rem;
font-weight: 600;
cursor: pointer;
transition: all 0.3s ease;
text-transform: uppercase;
letter-spacing: 0.5px;
box-shadow: var(--shadow-md);
}
.converter-widget .convert-button:hover {
background: linear-gradient(135deg, var(--royal-blue), var(--primary-blue));
transform: translateY(-2px);
box-shadow: var(--shadow-lg);
}
/* Responsive design */
@media (max-width: 1024px) {
.hero-header .container {
grid-template-columns: 1fr;
text-align: center;
gap: var(--space-xl);
}
.hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.footer-content {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
}

.form-row {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.swap-section {
    grid-column: span 2;
    justify-content: center;
}

.convert-group {
    grid-column: span 2;
    justify-content: center;
}
}
@media (max-width: 768px) {
.container {
padding: 0 var(--space-md);
}

.hero-header {
    padding: var(--space-2xl) 0;
}

h1 {
    font-size: 2.25rem;
}

h2 {
    font-size: 1.875rem;
}

.main-nav .container {
    flex-direction: column;
    gap: var(--space-md);
}

.nav-links {
    overflow-x: auto;
    padding: 0 var(--space-sm);
    width: 100%;
    justify-content: flex-start;
}

.nav-link {
    min-width: 80px;
    padding: var(--space-sm);
    font-size: 0.9rem;
}

.form-row {
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

.swap-section {
    order: 3;
    justify-content: center;
    grid-column: 1;
}

.convert-group {
    order: 4;
    justify-content: center;
    grid-column: 1;
}

.hero-stats {
    grid-template-columns: 1fr;
}

.popular-grid,
.converters-grid,
.benefits-grid,
.testimonials-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    text-align: center;
}

.footer-bottom {
    flex-direction: column;
    text-align: center;
}

.converter-widget .input-group {
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

.converter-widget .swap-button {
    align-self: center;
    margin: 0;
}
}
@media (max-width: 480px) {
h1 {
font-size: 2rem;
}

.brand-tagline {
    font-size: 1.125rem;
}

.quick-converter,
.popular-card,
.converter-item,
.benefit-item,
.testimonial-card,
.info-section {
    padding: var(--space-lg);
}

.converter-tabs {
    gap: var(--space-xs);
}

.tab-btn {
    min-width: 100px;
    padding: var(--space-sm);
}

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

.converter-arrow {
    transform: rotate(90deg);
}

.conversion-links {
    grid-template-columns: 1fr;
}

.footer-badges {
    flex-direction: column;
    gap: var(--space-xs);
}}
/* Loading states and animations */
@keyframes slideInUp {
from {
opacity: 0;
transform: translateY(30px);
}
to {
opacity: 1;
transform: translateY(0);
}
}
@keyframes fadeIn {
from {
opacity: 0;
}
to {
opacity: 1;
}
}
@keyframes pulse {
0%, 100% {
opacity: 1;
}
50% {
opacity: 0.5;
}
}
.fade-in {
animation: fadeIn 0.6s ease-out;
}
.slide-in {
animation: slideInUp 0.6s ease-out;
}
.pulse {
animation: pulse 2s infinite;
}
/* Loading state */
.loading {
opacity: 0.6;
pointer-events: none;
}
.loading .convert-btn,
.loading .convert-button {
position: relative;
}
.loading .convert-btn::after,
.loading .convert-button::after {
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 20px;
height: 20px;
border: 2px solid transparent;
border-top: 2px solid currentColor;
border-radius: 50%;
animation: spin 1s linear infinite;
}
@keyframes spin {
0% { transform: translate(-50%, -50%) rotate(0deg); }
100% { transform: translate(-50%, -50%) rotate(360deg); }
}
/* Print styles */
@media print {
.hero-header, .main-nav, .main-footer, .quick-converter, .converter-widget {
display: none;
}

.popular-card, .converter-item, .benefit-item, .result-display {
    box-shadow: none;
    border: 1px solid var(--medium-gray);
    break-inside: avoid;
    background: var(--white) !important;
    color: var(--text-dark) !important;
}

.info-section {
    box-shadow: none;
    border: 1px solid var(--medium-gray);
}

main {
    background: var(--white);
}

}
/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
* {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}

.swap-btn:hover,
.swap-button:hover {
    transform: none;
}}
/* Focus styles for keyboard navigation */
button:focus,
input:focus,
select:focus,
a:focus {
outline: 3px solid var(--primary-orange);
outline-offset: 2px;
border-radius: var(--radius-sm);
}
.nav-link:focus {
outline-color: var(--white);
}
.tab-btn:focus {
outline-color: var(--primary-blue);
}
/* High contrast mode support */
@media (prefers-contrast: high) {
:root {
--shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.4);
--shadow-md: 0 4px 8px 0 rgba(0, 0, 0, 0.4);
--shadow-lg: 0 8px 16px 0 rgba(0, 0, 0, 0.4);
--link-blue: #0033AA;
--link-hover: #002288;
}
.popular-card,
.converter-item,
.benefit-item,
.testimonial-card,
.info-section {
    border: 2px solid var(--text-dark);
}

.pop-link,
.nav-link,
.conversion-links a {
    border: 2px solid var(--text-medium);
}

.tab-btn {
    border-width: 3px;
}
}
/* Dark mode support */
@media (prefers-color-scheme: dark) {
:root {
--white: #0F172A;
--light-gray: #1E293B;
--medium-gray: #334155;
--text-dark: #F1F5F9;
--text-medium: #CBD5E1;
--text-light: #94A3B8;
--link-blue: #60A5FA;
--link-hover: #93C5FD;
--soft-orange: #431A07;
--light-blue: #0C1E3D;
}
body {
    background-color: var(--white);
    color: var(--text-dark);
}

.popular-card,
.converter-item,
.benefit-item,
.testimonial-card,
.quick-converter,
.info-section,
.converter-widget {
    background: var(--light-gray);
    border-color: var(--medium-gray);
}

.input-group input,
.input-group select,
.input-wrapper input,
.input-wrapper select {
    background: var(--medium-gray);
    color: var(--text-dark);
    border-color: var(--text-light);
}

.conversion-table td {
    background: var(--light-gray);
}

.conversion-table tr:nth-child(even) td {
    background: var(--medium-gray);
}

.hero-header {
    background: linear-gradient(135deg, 
        #7F1D1D 0%, 
        var(--light-gray) 25%, 
        var(--light-gray) 75%, 
        #1E3A8A 100%);
}

.stat-item {
    background: rgba(30, 41, 59, 0.9);
}
}
/* Custom scrollbar */
::-webkit-scrollbar {
width: 8px;
height: 8px;
}
::-webkit-scrollbar-track {
background: var(--light-gray);
}
::-webkit-scrollbar-thumb {
background: var(--medium-gray);
border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
background: var(--dark-gray);
}
/* Selection styles */
::selection {
background: var(--primary-orange);
color: var(--white);
}
::-moz-selection {
background: var(--primary-orange);
color: var(--white);
}
/* Utility classes */
.text-center {
text-align: center;
}
.text-left {
text-align: left;
}
.text-right {
text-align: right;
}
.hidden {
display: none;
}
.visible {
display: block;
}
.sr-only {
position: absolute;
width: 1px;
height: 1px;
padding: 0;
margin: -1px;
overflow: hidden;
clip: rect(0, 0, 0, 0);
white-space: nowrap;
border: 0;
}
/* Error states */
.error {
border-color: var(--dutch-red) !important;
box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.1) !important;
}
.error-message {
color: var(--dutch-red);
font-size: 0.875rem;
margin-top: var(--space-xs);
font-weight: 500;
}
.success {
border-color: var(--success-green) !important;
box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1) !important;
}
.success-message {
color: var(--success-green);
font-size: 0.875rem;
margin-top: var(--space-xs);
font-weight: 500;
}