/* Clean Geometric Design System - Matching Letterhead */
:root {
    /* Brand Colors - Exact Match to Letterhead */
    --color-brand-red: #DC1B0D; /* Primary accent, logo, dividers */
    --color-coral-red: #EF6070; /* Secondary accent, geometric shapes */
    --color-primary-blue: #006FC0; /* Headlines, key UI elements */
    --color-secondary-blue: #5792C1; /* Footers, secondary highlights */
    --color-bg: #FEFEFE; /* Background */
    --color-text: #191919; /* Body text */
    
    /* Derived Colors */
    --color-primary: var(--color-primary-blue);
    --color-secondary: var(--color-secondary-blue);
    --color-accent: var(--color-brand-red);
    --color-accent-alt: var(--color-coral-red);
    --color-text-light: #6A6A6A; /* Muted text */
    --color-bg-alt: #FEFEFE;
    --color-card-bg: #FFFFFF;
    --color-border: #E0E0E0;
    --color-border-light: #F0F0F0;
    
    /* Typography - Inter for all text */
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;
    --line-height-base: 1.7;
    --line-height-tight: 1.3;
    
    /* Spacing - Tight and Confident */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 5rem;
    
    /* Shadows - Removed for flat design */
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --shadow-hover: none;
    
    /* Transitions - Smooth Micro-interactions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Border Radius - Geometric design */
    --radius-sm: 0;
    --radius-md: 0;
    --radius-lg: 0;
}

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

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

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base); /* 16px minimum on mobile */
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    position: relative;
}

/* Container - Responsive Padding */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 48px; /* Desktop default */
}

/* Tablet: 481px - 768px */
@media (min-width: 481px) and (max-width: 768px) {
    .container {
        padding: 0 32px;
    }
}

/* Mobile: <= 480px */
@media (max-width: 480px) {
    .container {
        padding: 0 24px;
    }
}

.hero .container {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

/* Header - Sticky Navigation */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-bg);
    border-bottom: 0.5px solid var(--color-coral-red); /* Reduced thickness, use coralRed */
    transition: var(--transition);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    min-height: 80px;
    position: relative;
}

.logo-link {
    display: inline-block;
    text-decoration: none;
    transition: var(--transition);
    line-height: 0;
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo {
    height: 64px; /* Desktop: 48-64px */
    width: auto;
    display: block;
    transition: var(--transition);
    vertical-align: middle;
    object-fit: contain;
}

.logo-link:hover .logo {
    transform: scale(1.05);
    opacity: 0.9;
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--font-size-base);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
    transition: var(--transition);
    min-height: 44px; /* Tap target >= 44px */
    display: flex;
    align-items: center;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-brand-red);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-primary-blue);
    outline: none;
}

.nav-link:hover::after,
.nav-link:focus::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    min-height: 44px; /* Tap target >= 44px */
    min-width: 44px;
    justify-content: center;
    align-items: center;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
    display: block;
}

/* Desktop: >= 769px - Logo left, links right */
@media (min-width: 769px) {
    .mobile-menu-toggle {
        display: none;
    }
    
    .nav {
        display: flex;
    }
}

/* Tablet & Mobile: <= 768px - Logo left, hamburger right */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--color-bg);
        flex-direction: column;
        padding: var(--spacing-md);
        border-top: 1px solid var(--color-border);
        gap: 0;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        max-height: calc(100vh - 80px);
        overflow-y: auto;
    }
    
    .nav.active {
        display: flex;
    }
    
    .nav-link {
        padding: 14px 0; /* Tap target >= 44px height */
        width: 100%;
        min-height: 44px;
        display: flex;
        align-items: center;
        border-bottom: 1px solid var(--color-border-light);
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
}

/* Hero Section - Industrial Consulting Letterhead Style */
.hero {
    padding: var(--spacing-xl) 0;
    min-height: auto;
    display: flex;
    align-items: flex-start;
    background: var(--color-bg);
    position: relative;
}

.hero-content {
    text-align: left;
    max-width: 900px;
    margin: 0;
    padding: 0;
}

.hero-company-name {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    color: #6A6A6A;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.5rem; /* Reduced from 1rem */
    line-height: 1.3;
}

.hero-headline {
    font-family: var(--font-heading);
    font-size: 2.5rem; /* Desktop */
    font-weight: 400;
    color: #191919;
    line-height: 1.3;
    letter-spacing: -0.01em;
    margin: 0 0 0.5rem 0; /* Reduced from 1rem */
}

.hero-headline .instrumental {
    font-weight: 400; /* Regular weight, slightly softer */
    color: #191919;
    opacity: 0.9; /* Slightly softer */
}

.hero-headline .catalyst {
    font-weight: 700;
    color: #006FC0; /* brandBlue */
}

.hero-headline .process {
    font-weight: 300; /* Lighter weight */
    color: #6A6A6A; /* muted */
}

.hero-sub-line {
    font-family: var(--font-heading);
    font-size: 0.8125rem; /* Desktop */
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.03em; /* Reduced from 0.05em - tighter spacing */
    color: #6A6A6A;
    margin-top: 0.25rem; /* Reduced from 0.5rem */
    line-height: 1.5; /* Tighter line-height */
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-primary-blue);
    color: white;
    border: none;
}

.btn-primary:hover {
    background: var(--color-secondary-blue);
    transform: none;
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary-blue);
    border: 2px solid var(--color-primary-blue);
}

.btn-secondary:hover {
    background: var(--color-primary-blue);
    color: white;
    transform: none;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border-light);
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-primary-blue);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* About Section */
.about {
    padding: var(--spacing-xl) 0; /* Desktop: 4rem */
    background: var(--color-bg);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px; /* Reduced from 2px (~50% reduction) */
    background: var(--color-coral-red); /* Use coralRed instead of brandRed */
}

.about::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40px;
    height: 40px;
    background: var(--color-coral-red);
    clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.section-heading {
    font-family: var(--font-heading);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary-blue);
    margin-bottom: var(--spacing-lg);
    text-align: left;
    letter-spacing: -0.02em;
}

/* Founder Section */
.founder {
    padding: var(--spacing-xl) 0; /* Desktop: 4rem */
    background: var(--color-bg);
    position: relative;
}

.about-text {
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.philosophy-callout {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md); /* Reduced from var(--spacing-lg) */
    background: var(--color-bg);
    border-left: 3px solid var(--color-brand-red); /* Keep brandRed for strong accent, reduced from 4px */
    border-top: none; /* Remove full border */
    border-right: none;
    border-bottom: none;
}

.philosophy-text {
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    margin: 0;
}

.philosophy-text strong {
    color: #191919; /* text color, not bright blue */
    font-weight: 600;
    font-size: 0.9375rem; /* Slightly smaller */
    letter-spacing: 0.02em; /* Tighter spacing */
}

.about-contact {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border-light);
    text-align: center;
}

.about-contact-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.about-contact-name {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary-blue);
    margin-bottom: var(--spacing-sm);
}

.about-contact-link {
    display: block;
    color: var(--color-text-light);
    text-decoration: none;
    margin-bottom: var(--spacing-xs);
    transition: var(--transition);
}

.about-contact-link:hover {
    color: var(--color-primary-blue);
}

/* Experience Section */
.experience {
    padding: var(--spacing-xl) 0; /* Desktop: 4rem */
    background: var(--color-bg);
    position: relative;
}

.experience::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 40px;
    background: var(--color-secondary-blue);
    clip-path: polygon(0 0, 100% 100%, 0 100%);
}

.experience-content {
    max-width: 800px;
    margin: 0 auto;
}

.experience-list {
    list-style: none;
    margin: var(--spacing-lg) 0;
    padding: 0;
}

.experience-list li {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-base);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
    position: relative;
}

.experience-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary-blue);
    font-weight: bold;
    font-size: 1.5em;
    line-height: 1;
}

.experience-statement {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.experience-statement-text {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
    font-style: normal;
    letter-spacing: -0.01em;
}

/* Services Section */
.services {
    padding: var(--spacing-xl) 0; /* Desktop: 4rem */
    background: var(--color-bg);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px; /* Reduced from 2px */
    background: var(--color-coral-red); /* Use coralRed */
}

.section-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary-blue);
    text-align: left;
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.02em;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* Desktop: 2-3 columns */
    gap: var(--spacing-lg);
}

/* Desktop: 3 columns if space allows */
@media (min-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    background: var(--color-card-bg);
    padding: var(--spacing-lg);
    border: 2px solid var(--color-border);
    transition: var(--transition);
    position: relative;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-brand-red);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.3s ease;
}

.service-card:hover::after {
    transform: scaleY(1);
}

.service-card:hover {
    border-color: var(--color-primary-blue);
    transform: none;
}

.service-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
    background: var(--color-primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--color-secondary-blue);
    transform: none;
}

.service-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary-blue);
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-tight);
}

.service-list {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.service-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
    color: var(--color-text);
    line-height: var(--line-height-base);
}

.service-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary-blue);
    font-weight: bold;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition);
    margin-top: var(--spacing-md);
}

.service-link:hover {
    color: var(--color-secondary-blue);
    gap: var(--spacing-sm);
}

.service-card-premium .service-subtitle {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-brand-red);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Contact Section */
.contact {
    padding: var(--spacing-xl) 0; /* Desktop: 4rem */
    background: var(--color-bg);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px; /* Reduced from 2px */
    background: var(--color-coral-red); /* Use coralRed */
}

.contact-content {
    max-width: 700px;
    margin: 0 auto;
}

.contact-info {
    text-align: left;
}

.contact-item {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-base);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.contact-item strong {
    color: var(--color-primary-blue);
    font-weight: 600;
    margin-right: var(--spacing-xs);
}

.contact-link {
    color: var(--color-primary-blue);
    text-decoration: none;
    transition: var(--transition);
}

.contact-link:hover {
    color: var(--color-secondary-blue);
    text-decoration: underline;
}

.contact-note {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.btn-contact {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-primary-blue);
    color: white;
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: 2px solid var(--color-primary-blue);
    transition: var(--transition);
    margin-top: var(--spacing-md);
}

.btn-contact:hover {
    background: var(--color-secondary-blue);
    border-color: var(--color-secondary-blue);
    color: white;
}

/* Testimonials Section */
.testimonials {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg);
    position: relative;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-border);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.testimonial-card {
    background: var(--color-card-bg);
    padding: var(--spacing-xl);
    border: 2px solid var(--color-border);
    position: relative;
}

.testimonial-quote {
    font-size: 3rem;
    color: var(--color-primary-blue);
    opacity: 0.2;
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-base);
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

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

.testimonial-name {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.testimonial-company {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* Footer */
.footer {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    background: var(--color-bg);
    color: var(--color-text);
    border-top: 3px solid var(--color-secondary-blue);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--color-coral-red);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-heading {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary-blue);
}

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

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-links li {
    color: var(--color-text);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-text {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

/* Responsive Design - Tablet: 481px - 768px */
@media (min-width: 481px) and (max-width: 768px) {
    :root {
        --font-size-4xl: 2.5rem;
        --font-size-3xl: 2rem;
        --font-size-2xl: 1.75rem;
        --spacing-2xl: 4rem;
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }

    .logo {
        height: 56px;
        width: auto;
    }

    .hero {
        padding: var(--spacing-lg) 0;
    }

    .hero-headline {
        font-size: 2rem;
        margin-bottom: 0.5rem; /* Reduced spacing */
    }

    .hero-sub-line {
        font-size: 0.75rem;
        letter-spacing: 0.025em; /* Further reduced for tablet */
        margin-top: 0.25rem; /* Reduced spacing */
    }

    .section-heading,
    .section-title {
        font-size: var(--font-size-2xl);
    }

    .services-grid {
        grid-template-columns: 1fr; /* Stack on tablet */
    }
}

/* Responsive Design - Mobile: <= 480px */
@media (max-width: 480px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.5rem;
        --font-size-xl: 1.25rem;
        --spacing-2xl: 3rem;
        --spacing-xl: 2.5rem;
        --spacing-lg: 2rem;
        --spacing-md: 1.5rem;
    }

    html {
        font-size: 16px; /* Ensure minimum 16px base */
    }

    body {
        font-size: 16px; /* Minimum 16px body text on mobile */
    }

    .logo {
        height: 48px; /* Mobile: 40-48px */
        width: auto;
    }

    .header-content {
        min-height: 70px;
        padding: var(--spacing-xs) 0;
    }

    .hero {
        padding: var(--spacing-lg) 0;
        min-height: auto;
    }

    .hero-company-name {
        font-size: 0.6875rem; /* 11px */
        letter-spacing: 0.08em; /* Reduced tracking */
        margin-bottom: 0.5rem; /* Reduced spacing */
    }

    .hero-headline {
        font-size: clamp(1.5rem, 4vw, 1.75rem); /* Responsive clamp for better wrapping */
        line-height: 1.3;
        margin-bottom: 0.5rem; /* Reduced spacing */
        letter-spacing: -0.005em; /* Slightly tighter for mobile */
    }
    
    /* Prevent "Process." from breaking alone on very small screens */
    .hero-headline .process {
        white-space: nowrap;
    }
    
    .hero-sub-line {
        font-size: 0.6875rem; /* 11px */
        letter-spacing: 0.015em; /* Further reduced tracking for mobile */
        line-height: 1.4; /* Tighter line-height */
        margin-top: 0.25rem; /* Reduced spacing */
    }

    .section-heading,
    .section-title {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-md);
    }

    .about,
    .founder,
    .experience,
    .services,
    .contact {
        padding: var(--spacing-lg) 0; /* Responsive section padding */
    }

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

    .btn,
    .btn-contact {
        width: 100%;
        text-align: center;
        min-height: 44px; /* Tap target >= 44px */
        padding: 14px var(--spacing-md);
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .services-grid {
        grid-template-columns: 1fr; /* Mobile: 1 column */
        gap: var(--spacing-md);
    }

    .service-card {
        padding: var(--spacing-md);
    }

    .experience-list li {
        font-size: var(--font-size-base); /* 16px minimum */
        padding-left: var(--spacing-md);
        margin-bottom: var(--spacing-sm);
    }

    .contact-item {
        font-size: var(--font-size-base); /* 16px minimum */
        margin-bottom: var(--spacing-sm);
    }

    .contact-link {
        min-height: 44px; /* Tap target */
        display: inline-flex;
        align-items: center;
    }

    .philosophy-callout {
        padding: var(--spacing-md);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

a:focus,
button:focus {
    outline: 3px solid var(--color-brand-red);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}