.activity-demo{background:var(--paper);border-bottom:1px solid var(--line)}.activity-demo .section-title{white-space:pre-line}.activity-demo-origin{color:var(--muted);border-left:2px solid var(--line-strong);margin-top:18px;padding-left:16px;font-size:12px;line-height:1.8}.activity-demo-stats{border-block:1px solid var(--line-strong);grid-template-columns:repeat(4,minmax(0,1fr));gap:25px;margin-bottom:38px;padding-block:24px;display:grid}.activity-demo-stats>div{flex-direction:column;gap:9px;display:flex}.activity-demo-stats dt{color:var(--muted);font-size:11px}.activity-demo-stats dd{font:500 39px/1.1 var(--font-display);letter-spacing:-.04em;order:-1}.activity-demo-steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;display:grid}.activity-demo-steps article{border:1px solid var(--line);background:var(--surface);border-radius:16px;min-width:0;padding-bottom:24px;overflow:hidden}.activity-demo-step-heading{min-height:120px;padding:24px}.activity-demo-step-heading .eyebrow{color:var(--signal)}.activity-demo-step-heading h3{font:500 25px/1.2 var(--font-display);letter-spacing:-.035em;margin-top:15px}.activity-demo-steps video{aspect-ratio:4/3;object-fit:contain;background:#0b1113;width:100%}.activity-demo-step-note{font:9px/1.8 var(--font-mono);color:var(--signal);margin:18px 24px 0}.activity-demo-step-description{color:var(--muted);margin:13px 24px 0;font-size:13px;line-height:1.85}.activity-demo-steps .text-link{gap:10px;margin-left:24px;margin-right:24px;font-size:11px}.activity-demo-record{border:1px solid var(--line);border-radius:14px;grid-template-columns:1fr 1fr;gap:50px;margin-top:30px;padding:28px;display:grid}.activity-demo-source>a{color:var(--ink);overflow-wrap:anywhere;margin-top:12px;font-size:14px;display:inline-block}.activity-demo-source>p:not(.eyebrow){color:var(--muted);margin-top:10px;font-size:12px;line-height:1.8}.activity-demo-source>.activity-demo-source-card{color:var(--muted);text-underline-offset:4px;font-size:11px;text-decoration:underline}.activity-demo-checks ul{flex-wrap:wrap;gap:11px 20px;margin-top:18px;padding:0;list-style:none;display:flex}.activity-demo-checks li{color:var(--muted);gap:8px;font-size:11px;display:flex}.activity-demo-checks li>span:first-child{color:var(--mint)}.activity-demo-downloads{margin-top:28px}.activity-demo-downloads>div{flex-wrap:wrap;gap:12px;margin-top:15px;display:flex}.activity-demo-downloads a{border:1px solid var(--line-strong);color:var(--ink-soft);border-radius:999px;align-items:center;gap:10px;padding:13px 17px;font-size:11px;display:flex}.activity-demo-downloads a:hover{border-color:var(--signal);color:var(--signal)}.activity-demo-limitations{border-top:1px solid var(--line-strong);margin-top:28px;padding-top:20px}.activity-demo-limitations summary{cursor:pointer;color:var(--ink-soft);font-size:12px}.activity-demo-limitations ul{color:var(--muted);margin:15px 0 0 18px;font-size:12px;line-height:1.9;list-style:outside}.activity-demo-limitations li+li{margin-top:5px}.activity-demo-workflow-note{color:var(--muted);margin-top:22px;font-size:12px;line-height:1.8}@media (max-width:950px){.activity-demo-steps{grid-template-columns:1fr;gap:25px}.activity-demo-steps video{max-height:440px}.activity-demo-step-heading{min-height:0}}@media (max-width:700px){.activity-demo-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.activity-demo-record{grid-template-columns:1fr;gap:25px;padding:24px}.activity-demo-downloads a{justify-content:space-between;width:100%}}