:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #f8fafc; color: #172033; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 32px; background: linear-gradient(135deg, #f8fafc 0%, #edf7f2 46%, #fff6df 100%); }
.shell { width: min(920px, 100%); }
.panel { border: 1px solid #d7e0df; border-radius: 8px; background: rgba(255,255,255,.86); padding: clamp(28px, 6vw, 72px); box-shadow: 0 18px 60px rgba(23, 32, 51, .12); }
.eyebrow { margin: 0 0 12px; color: #126b58; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; font-size: 13px; }
h1 { margin: 0; font-size: clamp(38px, 8vw, 84px); line-height: .98; letter-spacing: 0; }
.lead { max-width: 650px; color: #4d5b69; font-size: clamp(17px, 2.4vw, 22px); line-height: 1.55; }
button { min-height: 44px; padding: 0 20px; border: 0; border-radius: 8px; background: #172033; color: white; font-weight: 800; cursor: pointer; }
output { display: inline-flex; min-height: 44px; align-items: center; margin-left: 12px; color: #126b58; font-weight: 800; }
@media (max-width: 560px) { body { padding: 18px; place-items: start center; } output { display: flex; margin: 12px 0 0; } }