:root {
    --color-bg: #ffffff;
    --color-ink: #0f172a;
    --color-ink-soft: #475569;
    --color-accent: #1d4ed8;
    --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html {
    font-family: var(--font-body);
    color: var(--color-ink);
    background: var(--color-bg);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

body { margin: 0; }

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

.page {
    max-width: 640px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

.hero { margin-bottom: 3rem; }
.hero h1 {
    font-size: 2.25rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
}
.hero .tagline {
    color: var(--color-ink-soft);
    margin: 0;
    font-size: 1.05rem;
}

.block { margin-bottom: 2.5rem; }
.block h2 {
    font-size: 1.05rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-ink-soft);
    margin: 0 0 0.75rem;
}
.block p { margin: 0; }

.footer {
    margin-top: 4rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}
.footer p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--color-ink-soft);
}

@media (max-width: 640px) {
    .page { padding: 2.5rem 1.25rem; }
    .hero h1 { font-size: 1.75rem; }
}