*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg: #ffffff;--color-surface: #f6f8fa;--color-border: #d0d7de;--color-text: #1f2328;--color-muted: #636c76;--color-accent: #0969da;--color-accent-hover: #0550ae;--color-green: #1a7f37;--color-danger: #d1242f;--font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;--max-width: 860px;--radius: 6px}html{scroll-behavior:smooth}body{background:var(--color-bg);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;font-size:16px;line-height:1.6}a{color:var(--color-accent);text-decoration:none}a:hover{color:var(--color-accent-hover);text-decoration:underline}code{font-family:var(--font-mono);font-size:.875em;background:var(--color-surface);border:1px solid var(--color-border);border-radius:3px;padding:.1em .35em}pre{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1rem 1.25rem;overflow-x:auto;font-family:var(--font-mono);font-size:.875rem;line-height:1.5}pre code{background:none;border:none;padding:0;font-size:inherit}.container{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem}.site-nav{border-bottom:1px solid var(--color-border);padding:1rem 0;position:sticky;top:0;background:var(--color-bg);z-index:10}.site-nav .container{display:flex;align-items:center;justify-content:space-between}.nav-logo{height:28px;width:auto;display:block}.nav-links{display:flex;gap:1.5rem;font-size:.9rem;color:var(--color-muted)}.nav-links a{color:var(--color-muted)}.nav-links a:hover{color:var(--color-text);text-decoration:none}.hero{padding:5rem 0 4rem;text-align:center}.hero-logo{height:clamp(80px,12vw,140px);width:auto;margin:0 auto 1.5rem;display:block}.hero .tagline{font-size:1.15rem;color:var(--color-muted);margin-bottom:2.5rem;max-width:520px;margin-left:auto;margin-right:auto}.hero-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.6rem 1.4rem;border-radius:var(--radius);font-size:.95rem;font-weight:600;cursor:pointer;transition:opacity .15s;text-decoration:none}.btn:hover{opacity:.85;text-decoration:none}.btn-primary{background:var(--color-accent);color:#fff}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}section{padding:3.5rem 0;border-top:1px solid var(--color-border)}section h2{font-size:1.5rem;font-weight:700;margin-bottom:1.5rem}.features{display:grid;gap:1.25rem}.feature{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.25rem 1.5rem}.feature h3{font-size:1rem;font-weight:600;margin-bottom:.4rem}.feature p{color:var(--color-muted);font-size:.95rem}.version-badge{display:inline-block;background:var(--color-surface);border:1px solid var(--color-border);border-radius:2rem;padding:.25rem .75rem;font-size:.85rem;color:var(--color-muted);margin-bottom:1.5rem}.platform-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem;margin-bottom:2rem}.platform-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.25rem 1.5rem}.platform-card.highlighted{border-color:var(--color-accent)}.platform-card h3{font-size:1rem;font-weight:600;margin-bottom:.75rem}.platform-card .download-links{display:flex;flex-direction:column;gap:.5rem}.download-link{display:flex;justify-content:space-between;align-items:center;font-size:.875rem}.download-link a{font-weight:500}.checksum{font-family:var(--font-mono);font-size:.75rem;color:var(--color-muted);word-break:break-all;margin-top:.25rem}.signing-note{background:var(--color-surface);border:1px solid var(--color-border);border-left:3px solid #d29922;border-radius:var(--radius);padding:1rem 1.25rem;font-size:.875rem;color:var(--color-muted);margin-bottom:1.5rem}details summary{cursor:pointer;font-weight:600;color:var(--color-muted);font-size:.9rem;margin-bottom:1rem}details[open] summary{margin-bottom:1rem}.verify-steps{display:grid;gap:1rem}.verify-step h4{font-size:.875rem;color:var(--color-muted);margin-bottom:.4rem;font-weight:500}.source-link{margin-top:1rem;font-size:.9rem;color:var(--color-muted)}.requirements-table{width:100%;border-collapse:collapse;font-size:.9rem}.requirements-table th,.requirements-table td{text-align:left;padding:.75rem 1rem;border-bottom:1px solid var(--color-border)}.requirements-table th{color:var(--color-muted);font-weight:500}.requirements-table tr:last-child td{border-bottom:none}.optional-badge{font-size:.75rem;color:var(--color-muted);background:var(--color-surface);border:1px solid var(--color-border);border-radius:2rem;padding:.1rem .5rem;margin-left:.5rem}.site-footer{border-top:1px solid var(--color-border);padding:2rem 0;margin-top:2rem}.site-footer .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem;font-size:.875rem;color:var(--color-muted)}.footer-links{display:flex;gap:1.25rem}