/* Performance: Reduce repaints and reflows */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Performance: GPU acceleration for animations */
@media (prefers-reduced-motion: no-preference) {
    * {
        will-change: auto;
    }
}

:root {
    /* TouchForm AI Color Palette */
    --color-primary: #6b1200;        /* Burgundy */
    --color-secondary: #f6f5ec;      /* Light Gray */
    --color-text: #1a1a1a;
    --color-text-light: #4a4a4a;
    --color-border: #d4d3ca;
    --color-background: #ffffff;
    --color-hover: #8b1600;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Garamond', 'EB Garamond', 'Cormorant Garamond', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    --spacing-xxxl: 6rem;
    
    /* Layout */
    --container-width: 1200px;
    --content-width: 800px;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.header {
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-background);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.logo:hover {
    opacity: 0.8;
}

.logo-image {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-display);
    letter-spacing: -0.02em;
}

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

.nav-link {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-secondary);
}

.nav-link.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-hover) 100%);
    color: var(--color-secondary);
    padding: var(--spacing-xxxl) 0;
    text-align: center;
}

.hero-content {
    max-width: var(--content-width);
    margin: 0 auto;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

.hero-cta {
    margin-top: var(--spacing-xl);
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-email {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 16px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--color-background);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.btn-secondary:hover {
    background-color: var(--color-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(107, 18, 0, 0.3);
}

.btn-email {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    font-size: 1.2rem;
    padding: var(--spacing-md) var(--spacing-xl);
}

.btn-email:hover {
    background-color: var(--color-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(107, 18, 0, 0.3);
}

/* Features Section */
.features {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--color-secondary);
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.02em;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.feature-card {
    background-color: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(107, 18, 0, 0.15);
    border-color: var(--color-primary);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--color-background);
    text-align: center;
}

.cta-content {
    max-width: var(--content-width);
    margin: 0 auto;
}

.cta-content h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

/* Contact Page */
.contact-page {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--color-secondary);
    min-height: calc(100vh - 200px);
}

.contact-header {
    text-align: center;
    margin-bottom: var(--spacing-xxxl);
}

.page-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
}

.contact-content {
    max-width: 600px;
    margin: 0 auto var(--spacing-xxxl);
}

.contact-card {
    background-color: var(--color-background);
    padding: var(--spacing-xxl);
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.contact-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.contact-card h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.contact-card p {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

/* Info Section */
.info-section {
    max-width: var(--container-width);
    margin: 0 auto;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.info-card {
    background-color: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: 16px;
    border-left: 4px solid var(--color-primary);
}

.info-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.info-card p {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    padding: var(--spacing-xl) 0;
    text-align: center;
    margin-top: auto;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: 0.9;
}

.footer p {
    margin: 0;
    font-size: 0.95rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title,
    .page-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .nav {
        gap: var(--spacing-sm);
    }
    
    .nav-link {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.9rem;
    }
    
    .logo {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn-primary,
    .btn-secondary,
    .btn-email {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 1rem;
    }
    
    .contact-card {
        padding: var(--spacing-xl);
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection Color */
::selection {
    background-color: var(--color-primary);
    color: var(--color-secondary);
}

::-moz-selection {
    background-color: var(--color-primary);
    color: var(--color-secondary);
}