:root { --accent: #0891b2; --ink: #222; --muted: #6b7280; }
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: ui-sans-serif, system-ui, "Helvetica Neue", Arial, sans-serif; color: var(--ink);
  line-height: 1.7; background: #fff; border-top: 5px solid var(--accent); }
.wrap { max-width: 640px; margin: 0 auto; padding: 0 24px; }
header { padding: 40px 0 0; }
.brand { font-size: 22px; font-weight: 800; letter-spacing: -.5px; color: var(--ink); text-decoration: none; }
nav { margin-top: 8px; }
nav a { color: var(--muted); text-decoration: none; margin-right: 18px; font-size: 14px; text-transform: uppercase; letter-spacing: .08em; }
nav a:hover { color: var(--accent); }
.hero { padding: 56px 0 40px; }
.hero h1 { font-size: 34px; line-height: 1.25; margin: 0 0 16px; font-weight: 800; letter-spacing: -.5px; }
.hero p { font-size: 18px; color: var(--muted); margin: 0 0 28px; }
.link { color: var(--accent); font-weight: 600; text-decoration: none; border-bottom: 2px solid var(--accent); }
hr { border: none; border-top: 1px solid #eee; margin: 40px 0; }
.body { padding: 8px 0 48px; }
.body h2 { font-size: 20px; margin: 28px 0 8px; }
.body p { color: #333; }
footer { color: var(--muted); font-size: 13px; padding: 24px 0 56px; }
footer a { color: var(--muted); text-decoration: none; }
.center { padding: 80px 0; }
.center h1 { font-size: 56px; margin: 0 0 8px; color: var(--accent); font-weight: 800; }