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

:root {
    --zinc-50: #fafafa;
    --zinc-100: #f4f4f5;
    --zinc-200: #e4e4e7;
    --zinc-300: #d4d4d8;
    --zinc-400: #a1a1aa;
    --zinc-500: #71717a;
    --zinc-600: #52525b;
    --zinc-700: #3f3f46;
    --zinc-900: #18181b;
    --site-max: 1120px;
    --font: "Instrument Sans", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-card-hover: 0 2px 8px rgba(0, 0, 0, 0.06), 0 24px 48px -12px rgba(0, 0, 0, 0.08);
}

html {
    scroll-behavior: smooth;
    color-scheme: light;
}

body {
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--zinc-900);
    background-color: var(--zinc-50);
    -webkit-font-smoothing: antialiased;
    font-feature-settings: "kern" 1;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(228, 228, 231, 0.9);
}

nav {
    max-width: var(--site-max);
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    text-decoration: none;
    color: var(--zinc-900);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 28px;
    height: 28px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    gap: 1.75rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--zinc-500);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.15s ease;
}

.nav-links a:hover {
    color: var(--zinc-900);
}

main {
    max-width: var(--site-max);
    margin: 0 auto;
    padding: 0 1.5rem;
    padding-top: 4.75rem;
}

.hero {
    padding: 5.5rem 0 6.5rem;
    border-bottom: 1px solid var(--zinc-200);
}

.hero-kicker {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--zinc-500);
    margin-bottom: 1rem;
}

.hero h1 {
    font-size: clamp(2.25rem, 5.5vw, 3.75rem);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    max-width: 18ch;
}

.hero-line {
    font-weight: 600;
}

.hero h1 em {
    font-style: italic;
    font-weight: 500;
    color: var(--zinc-700);
}

.tagline {
    font-size: 1.0625rem;
    line-height: 1.65;
    color: var(--zinc-600);
    max-width: 34rem;
    font-weight: 400;
}

section h2 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--zinc-500);
    margin-bottom: 2rem;
}

.products {
    padding: 4.5rem 0;
    border-bottom: 1px solid var(--zinc-200);
}

.products-layout {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
}

.product-card {
    background: #fff;
    border: 1px solid rgba(228, 228, 231, 0.9);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.product-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-2px);
    border-color: var(--zinc-200);
}

.product-image {
    margin-bottom: 1.25rem;
    border-radius: 0.75rem;
    overflow: hidden;
    background: var(--zinc-100);
    border: 1px solid var(--zinc-200);
}

.product-image img {
    width: 100%;
    height: auto;
    display: block;
}

.product-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--zinc-900);
    margin-bottom: 0.5rem;
}

.product-card p {
    color: var(--zinc-600);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.product-link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--zinc-900);
    text-decoration: none;
    transition: color 0.15s ease;
}

.product-link:hover {
    color: var(--zinc-600);
}

.product-card--horizontal {
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    gap: 1.75rem;
    align-items: center;
    padding: 1.75rem;
}

.product-card--horizontal .product-image {
    margin-bottom: 0;
}

.product-card--horizontal .product-card__content {
    min-width: 0;
}

.product-card--horizontal .product-card__content p {
    margin-bottom: 1.125rem;
}

.about {
    padding: 4.5rem 0;
}

.about p {
    font-size: 1.125rem;
    line-height: 1.65;
    color: var(--zinc-600);
    max-width: 36rem;
    font-weight: 400;
}

footer {
    border-top: 1px solid var(--zinc-200);
    padding: 2rem 1.5rem;
    text-align: center;
}

footer p {
    font-size: 0.8125rem;
    color: var(--zinc-500);
}

@media (max-width: 720px) {
    .product-grid {
        grid-template-columns: 1fr;
    }

    .product-card--horizontal {
        grid-template-columns: 1fr;
    }

    .product-card--horizontal .product-image {
        margin-bottom: 1.25rem;
    }
}

@media (max-width: 640px) {
    nav {
        padding: 0.875rem 1.25rem;
    }

    main {
        padding: 0 1.25rem;
        padding-top: 4.25rem;
    }

    .hero {
        padding: 3.5rem 0 4.5rem;
    }

    .products {
        padding: 3.5rem 0;
    }

    .about {
        padding: 3.5rem 0;
    }

    .nav-links {
        gap: 1.25rem;
    }

    .product-card--horizontal {
        padding: 1.25rem;
    }
}