:root{--bg:#0f1115;--bg-elev:#171a22;--fg:#e8ecf2;--fg-dim:#9aa3b2;--border:#262b36;--accent:#5cc8ff;--accent-ink:#0b1420;--danger:#ff7a7a;--good:#7ee08a;--radius:8px;--maxw:720px}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,system-ui,sans-serif;font-size:16px;line-height:1.55}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:var(--maxw);margin:0 auto;padding:48px 24px}header.site{justify-content:space-between;align-items:baseline;margin-bottom:48px;display:flex}header.site .brand{letter-spacing:-.01em;color:var(--fg);font-size:22px;font-weight:600}header.site .brand:hover{text-decoration:none}header.site nav a{color:var(--fg-dim);margin-left:20px;font-size:14px}header.site nav a:hover{color:var(--fg);text-decoration:none}h1{letter-spacing:-.02em;margin:0 0 16px;font-size:40px;font-weight:700;line-height:1.1}h2{letter-spacing:-.01em;margin:40px 0 12px;font-size:22px;font-weight:600}h3{color:var(--fg);margin:24px 0 8px;font-size:17px;font-weight:600}.lead{color:var(--fg-dim);max-width:560px;margin:0 0 32px;font-size:19px}.btn{border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-elev);color:var(--fg);cursor:pointer;padding:12px 20px;font-size:15px;font-weight:500;line-height:1.2;text-decoration:none;transition:transform 50ms,background .15s,border-color .15s;display:inline-block}.btn:hover{border-color:#3a4152;text-decoration:none}.btn:active{transform:translateY(1px)}.btn[disabled]{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}.btn.primary:hover{background:#7bd4ff;border-color:#7bd4ff}.btn.danger{color:var(--danger);border-color:#4a2b2b}.btn.danger:hover{border-color:var(--danger)}.cta-row{flex-wrap:wrap;gap:12px;margin:32px 0 24px;display:flex}.muted{color:var(--fg-dim);font-size:14px}.card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);margin:16px 0;padding:20px}.card h3{margin-top:0}footer.site{border-top:1px solid var(--border);color:var(--fg-dim);flex-wrap:wrap;justify-content:space-between;gap:16px;margin-top:72px;padding-top:24px;font-size:13px;display:flex}footer.site a{color:var(--fg-dim)}footer.site a:hover{color:var(--fg)}.prose h3{margin-top:28px}.prose p,.prose ul{color:var(--fg)}.prose ul{padding-left:22px}.prose li{margin-bottom:4px}.prose em{color:var(--fg-dim);font-style:normal}code{background:var(--bg-elev);border-radius:4px;padding:1px 6px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em}.placeholder{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:100vh;display:flex}.placeholder .mark{border-radius:16px;width:64px;height:64px;margin-bottom:24px}.placeholder h1{margin-bottom:8px}.placeholder .lead{margin:0 0 24px}@media (width<=480px){h1{font-size:32px}.container{padding:32px 20px}header.site{flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:32px}header.site nav a{margin:0 16px 0 0}}.flow{align-items:stretch;gap:8px;margin:24px 0 8px;display:flex}.flow-step{border-radius:var(--radius);background:var(--bg-elev);border:1px solid var(--border);text-align:center;flex-direction:column;flex:1 1 0;gap:4px;min-width:0;padding:14px 12px;display:flex}.flow-step strong{font-size:14px}.flow-step .muted{font-size:12px;line-height:1.3}.flow-endpoint{border-color:var(--accent);background:#5cc8ff14}.flow-arrow{width:20px;color:var(--fg-dim);flex:none;justify-content:center;align-items:center;display:flex}@media (width<=480px){.flow{flex-direction:column}.flow-arrow{width:auto;height:16px;transform:rotate(90deg)}}