:root {
    --color-primary: #2c2c2c;
    --color-text: #3a3a3a;
    --color-text-light: #6b6b6b;
    --color-bg: #ffffff;
    --color-border: #e8e8e8;
    --spacing-xs: 0.75rem;
    --spacing-sm: 1.5rem;
    --spacing-md: 3rem;
    --spacing-lg: 6rem;
    --spacing-xl: 9rem;
    --max-width: 1000px;
    --transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.8;
    font-size: 16px;
    font-weight: 300;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: var(--transition);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.75rem 0;
}

.logo {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--color-primary);
    text-decoration: none;
    letter-spacing: 0.05em;
    transition: var(--transition);
}

.logo:hover {
    opacity: 0.6;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--color-text-light);
    text-decoration: none;
    font-weight: 300;
    font-size: 0.9rem;
    transition: var(--transition);
    position: relative;
    letter-spacing: 0.02em;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 1px;
    background: var(--color-primary);
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.3;
}

.nav-links a:hover::after {
    width: 100%;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px var(--spacing-md) var(--spacing-md);
    background: #ffffff;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    margin-top: 3rem;
}

.hero-title {
    font-size: clamp(2rem, 4.5vw, 3.25rem);
    font-weight: 200;
    line-height: 1.4;
    color: var(--color-primary);
    margin-bottom: 2.5rem;
    letter-spacing: -0.005em;
    max-width: 850px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--color-text-light);
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    line-height: 2;
    letter-spacing: 0.01em;
}

.hero-cta {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    text-decoration: none;
    font-weight: 300;
    font-size: 0.9rem;
    border-radius: 1px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    letter-spacing: 0.03em;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    background: #3a3a3a;
    opacity: 0.9;
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

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

/* Section Styles */
section {
    padding: var(--spacing-xl) var(--spacing-md);
}

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

.section-header h2 {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 200;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    letter-spacing: 0.02em;
}

.section-header p {
    color: var(--color-text-light);
    font-size: 1rem;
    font-weight: 300;
    letter-spacing: 0.01em;
}

/* Mission Section */
.mission {
    background: var(--color-bg);
}

.mission-content {
    max-width: 780px;
    margin: 0 auto;
    display: grid;
    gap: var(--spacing-lg);
}

.mission-block {
    padding: 0;
    transition: var(--transition);
}

.mission-block:hover {
    opacity: 0.95;
}

.mission-block h3 {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--color-primary);
    margin-bottom: 1.25rem;
    letter-spacing: 0.02em;
}

.mission-block p {
    color: var(--color-text);
    line-height: 2;
    font-size: 1rem;
    font-weight: 300;
    letter-spacing: 0.005em;
}

/* Products Section */
.products {
    background: var(--color-bg-section);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.product-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: var(--transition);
    text-align: center;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border-color: var(--color-primary);
}

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

.product-card h3 {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

.product-card p {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.product-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    display: inline-block;
    transition: var(--transition);
}

.product-link:hover {
    opacity: 0.7;
    transform: translateX(4px);
}

/* Contact Section */
.contact {
    background: var(--color-bg);
    padding: var(--spacing-xl) var(--spacing-md) calc(var(--spacing-xl) * 1.5);
}

.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-email {
    display: inline-block;
    font-size: 1rem;
    color: var(--color-text);
    text-decoration: none;
    font-weight: 400;
    padding: 0.625rem 1.5rem;
    border: none;
    border-radius: 2px;
    position: relative;
    letter-spacing: 0.01em;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: transparent;
}

.contact-email::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid var(--color-border);
    border-radius: 2px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.5;
}

.contact-email::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 1px;
    background: var(--color-primary);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-email:hover {
    color: var(--color-primary);
}

.contact-email:hover::before {
    opacity: 0;
    transform: scale(1.02);
}

.contact-email:hover::after {
    width: 80%;
}

/* Footer */
.footer {
    background: transparent;
    color: var(--color-text-light);
    padding: var(--spacing-md) var(--spacing-md);
    text-align: center;
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-lg);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 300;
    letter-spacing: 0.02em;
}

.footer-tagline {
    color: var(--color-text-light);
    font-size: 0.85rem;
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 4rem;
        --spacing-xl: 6rem;
    }

    .nav-links {
        gap: 2rem;
    }

    .nav-links a {
        font-size: 0.85rem;
    }

    .hero {
        padding: 80px 1.5rem var(--spacing-md);
    }

    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .mission-content {
        gap: 3rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1.25rem;
    }

    .nav-content {
        padding: 1.5rem 0;
    }

    .nav-links {
        gap: 1.5rem;
    }
    
    .logo {
        font-size: 1.1rem;
    }
}