:root{--text-primary: #171717;--text-tertiary: #525252;--border-secondary: #e5e5e5;--gutter: 20px;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;color:var(--text-primary);background:#fff}*{box-sizing:border-box}body{margin:0}.app{max-width:640px;margin:0 auto;padding-bottom:48px}.hero{background:var(--brand-hero);color:#fff;padding:32px var(--gutter);border-radius:0 0 24px 24px}.hero h1{margin:0;font-size:36px;line-height:44px;letter-spacing:-.72px}.hero p{margin:8px 0 0;opacity:.7}main{padding:0 var(--gutter)}h2{font-size:18px;line-height:28px;margin:24px 0 12px}.swatches{display:flex;flex-wrap:wrap;gap:12px}.swatch{width:44px;height:44px;border-radius:9999px;border:0;cursor:pointer;outline:3px solid transparent;outline-offset:2px}.swatch[aria-checked=true]{outline-style:solid;box-shadow:inset 0 0 0 3px #fff}.tools{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}.card{display:flex;flex-direction:column;gap:4px;padding:16px;border-radius:16px;background:var(--brand-subtle);border:1px solid var(--brand-border)}.card .index{color:var(--brand-fg);font-size:12px;font-weight:600}.card .subtitle{color:var(--text-tertiary);font-size:14px}.field{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--text-tertiary)}.field input{font:inherit;font-size:24px;letter-spacing:4px;text-transform:uppercase;padding:10px 14px;border:1px solid var(--border-secondary);border-radius:8px;color:var(--text-primary)}.primary{margin-top:12px;min-height:44px;padding:0 20px;border:0;border-radius:8px;background:var(--brand-solid);color:#fff;font:inherit;font-weight:600;cursor:pointer}.primary:disabled{opacity:.4;cursor:default}