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

:root {
    --color-primary: #1a365d;
    --color-text: #1a202c;
    --color-text-muted: #4a5568;
    --color-bg: #ffffff;
    --color-bg-subtle: #f7fafc;
    --color-border: #e2e8f0;
    --color-accent: #2b6cb0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    padding: 48px 0 32px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 64px;
    width: auto;
    object-fit: contain;
}

/* Main */
main {
    flex: 1;
    padding-bottom: 64px;
}

/* Hero */
.hero {
    padding: 48px 0 64px;
    border-bottom: 1px solid var(--color-border);
}

.hero h1 {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.03em;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.tagline {
    font-size: 18px;
    color: var(--color-text-muted);
    max-width: 540px;
    line-height: 1.7;
}

/* Products */
.products {
    padding: 48px 0;
}

.products h2 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.product-card {
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 32px;
    position: relative;
}

.product-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    background: rgba(43, 108, 176, 0.1);
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.product-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
}

.product-card p {
    color: var(--color-text-muted);
    margin-bottom: 20px;
    line-height: 1.6;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-accent);
    text-decoration: none;
    transition: gap 0.2s ease;
}

.product-link:hover {
    gap: 10px;
}

.product-link svg {
    transition: transform 0.2s ease;
}

.product-link:hover svg {
    transform: translate(2px, -2px);
}

/* Footer */
footer {
    padding: 32px 0;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

footer p {
    font-size: 14px;
    color: var(--color-text-muted);
}

footer a {
    font-size: 14px;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

footer a:hover {
    color: var(--color-accent);
}

/* Responsive */
@media (max-width: 640px) {
    header {
        padding: 32px 0 24px;
    }

    .hero {
        padding: 32px 0 48px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .tagline {
        font-size: 16px;
    }

    .product-card {
        padding: 24px;
    }

    footer {
        flex-direction: column;
        align-items: flex-start;
    }
}