:root{--bg:#ffffff;--fg:#111111;--muted:#666666;--border:#e5e5e5;--accent:#111111;--max:960px}@media (prefers-color-scheme:dark){:root{--bg:#0e0e0e;--fg:#f2f2f2;--muted:#9a9a9a;--border:#2a2a2a;--accent:#f2f2f2}}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit}.container{max-width:var(--max);margin:0 auto;padding:0 16px}.site-header{border-bottom:1px solid var(--border)}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{font-weight:700;font-size:1.125rem;text-decoration:none}.nav{display:flex;gap:20px}.nav a{color:var(--muted);text-decoration:none;font-size:.95rem}.nav a:hover{color:var(--fg)}.hero{padding:96px 0 64px;text-align:center}.logo-placeholder{width:96px;height:96px;margin:0 auto 24px;border:2px dashed var(--border);border-radius:24px;display:grid;place-items:center;color:var(--muted);font-size:.75rem}.hero h1{font-size:clamp(2rem,6vw,3.25rem);line-height:1.15;margin:0 0 12px}.hero p{color:var(--muted);font-size:1.125rem;max-width:560px;margin:0 auto 32px}.store-buttons{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.store-button{display:inline-flex;flex-direction:column;align-items:flex-start;padding:10px 20px;min-width:180px;border-radius:10px;background:var(--accent);color:var(--bg);text-decoration:none}.store-button small{font-size:.7rem;opacity:.8}.store-button strong{font-size:1rem}.store-button[aria-disabled=true]{opacity:.45;cursor:not-allowed}.section{padding:56px 0;border-top:1px solid var(--border)}.section h2{margin:0 0 24px;font-size:1.5rem}.features{display:grid;grid-gap:16px;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.feature{border:1px solid var(--border);border-radius:12px;padding:20px}.feature h3{margin:0 0 8px;font-size:1.05rem}.feature p{margin:0;color:var(--muted)}.prose{padding:48px 0 72px;max-width:720px}.prose h1{font-size:2rem;margin:0 0 4px}.prose h2{font-size:1.25rem;margin:32px 0 8px}.prose li,.prose p{color:var(--fg)}.notice,.prose .meta{color:var(--muted);margin:0 0 24px}.notice{border:1px solid var(--border);border-radius:8px;padding:12px 16px;font-size:.9rem}.site-footer{border-top:1px solid var(--border);padding:24px 0;color:var(--muted);font-size:.9rem}.site-footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}.site-footer nav{display:flex;gap:16px}