:root{--blue:#2b7fd4;--blue-deep:#194b80;--bg:#0e1116;--bg-raised:#161b22;--border:#262d38;--text:#e6edf3;--text-muted:#9aa7b4;--measure:68ch;--gap:1rem;--section-gap:clamp(3.5rem, 8vw, 6rem);--radius:10px;--font:system-ui, -apple-system, "Segoe UI", "Yu Gothic UI", "Hiragino Sans", Meiryo, sans-serif;--mono:ui-monospace, "Cascadia Mono", "Consolas", monospace}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;margin:0;font-size:clamp(1rem,.95rem + .2vw,1.0625rem);line-height:1.75}h1,h2,h3{text-wrap:balance;margin:0;line-height:1.3}h1{letter-spacing:-.02em;font-size:clamp(2rem,1.4rem + 2.6vw,3.25rem)}h2{letter-spacing:-.01em;font-size:clamp(1.5rem,1.25rem + 1.1vw,2rem)}h3{font-size:1.0625rem}p{max-width:var(--measure);margin:0}a{color:inherit}ul,ol{margin:0}.wrap{width:100%;max-width:68rem;margin-inline:auto;padding-inline:clamp(1.25rem,4vw,2.5rem)}.section{padding-block:var(--section-gap);border-top:1px solid var(--border)}.section>.wrap>*+*{margin-top:calc(var(--gap) * 1.5)}.lead{color:var(--text-muted);font-size:1.0625em}.cards{gap:var(--gap);grid-template-columns:repeat(auto-fit,minmax(min(20rem,100%),1fr));padding:0;list-style:none;display:grid}.card{background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius);padding:calc(var(--gap) * 1.25)}.card h3{margin-bottom:.5rem}.card p{color:var(--text-muted);max-width:none}.btn{border-radius:var(--radius);border:1px solid var(--border);align-items:center;gap:.5rem;padding:.7rem 1.4rem;font-weight:600;line-height:1.4;text-decoration:none;display:inline-flex}.btn--primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn--ghost{color:var(--text);background:0 0}.btn:focus-visible,a:focus-visible{outline:2px solid var(--blue);outline-offset:3px}.logo{letter-spacing:-.01em;align-items:center;gap:.6rem;font-weight:700;text-decoration:none;display:inline-flex}.logo svg{width:1.75rem;height:1.75rem;display:block}