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

:root {
    --background: #ffffff;
    --foreground: #0a0a0a;
    --muted: #fafafa;
    --muted-foreground: #737373;
    --border: #e5e5e5;
    --radius: 0.5rem;
}

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

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

header {
    text-align: center;
    margin-bottom: 60px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--border);
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
    color: var(--foreground);
}

.tagline {
    font-size: 1.25rem;
    color: var(--muted-foreground);
    font-weight: 400;
}

main {
    margin-bottom: 60px;
}

section {
    margin-bottom: 40px;
}

section h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--foreground);
    letter-spacing: -0.01em;
}

section p {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    margin-bottom: 16px;
    line-height: 1.7;
}

.contact-info {
    margin-top: 20px;
    padding: 20px;
    background: var(--muted);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.contact-info p {
    margin-bottom: 8px;
}

.contact-info a {
    color: var(--foreground);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.contact-info a:hover {
    border-bottom-color: var(--foreground);
}

footer {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--border);
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

@media (max-width: 600px) {
    .container {
        padding: 20px 16px;
    }

    header h1 {
        font-size: 2rem;
    }

    .tagline {
        font-size: 1rem;
    }

    section h2 {
        font-size: 1.5rem;
    }

    section p {
        font-size: 1rem;
    }
}