:root {
    --color-bg: #0a0a0a;
    --color-text: #e5e5e5;
    --color-accent: #60a5fa;
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    padding: 1rem 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--color-text);
    text-decoration: none;
}

.logo:hover {
    color: var(--color-accent);
}

.hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 4rem 0;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.tagline {
    font-size: 1.25rem;
    color: var(--color-accent);
}

footer {
    padding: 2rem 0;
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.6;
}

a {
    color: var(--color-accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

@media (max-width: 640px) {
    .hero h1 {
        font-size: 2rem;
    }

    .container {
        padding: 1rem;
    }
}