.season-switch{display:flex;gap:4px;margin:0 9px 12px;padding:3px;border:1px solid var(--chrome-line);border-radius:9px;flex-shrink:0;background:rgba(125,150,170,.1)}.season-switch a{flex:1;text-align:center;font-size:10px;padding:6px 3px;color:var(--chrome-muted);border-radius:6px}.season-switch a[aria-current=page]{background:var(--selected-bg);color:var(--chrome-ink);box-shadow:0 1px 3px var(--glass-shadow)}.season-switch a:hover{text-decoration:none;color:var(--accent)}
.s2-flow ol{list-style:none;margin:0;padding:0;display:grid;gap:25px}.s2-flow li{position:relative;border:1px solid var(--line);background:var(--bg);padding:14px 17px;border-radius:8px;display:grid;gap:5px}.s2-flow li+li:before{content:'↓';position:absolute;left:20px;top:-26px;color:var(--accent);font-size:18px}.s2-flow li b{font-size:13px;font-weight:600}.s2-flow li span{font-size:12px;color:var(--muted);line-height:1.7}.s2-table .table-scroll{overflow:auto}.s2-table table{border-collapse:collapse;width:100%;min-width:340px;font-size:12px;line-height:1.8}.s2-table th,.s2-table td{padding:12px 10px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}.s2-table th{font-weight:600}.s2-table thead th{color:var(--muted);font-size:11px}.s2-table tbody th{min-width:90px}.s2-table tr:last-child td,.s2-table tr:last-child th{border-bottom:0}.s2-lab{border:1px solid var(--line);background:var(--bg-soft);margin-top:0}.s2-lab h3{margin:0 0 13px;line-height:1.5}.s2-lab-task{font-size:14px;line-height:1.9;color:var(--muted)}.s2-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:26px 0}.s2-controls label{font-size:12px;line-height:1.8;display:block}.s2-controls output{float:right;color:var(--accent);font-variant-numeric:tabular-nums}.s2-controls input[type=range]{display:block;width:100%;margin:13px 0 0;accent-color:var(--accent)}.s2-controls select{display:block;width:100%;margin-top:10px;background:var(--bg);border:1px solid var(--line-strong);border-radius:7px;color:var(--text);font-size:12px;padding:9px}.s2-controls .s2-toggle{display:flex;gap:10px;align-items:center}.s2-toggle input{accent-color:var(--accent);width:17px;height:17px;flex-shrink:0}.s2-actions{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0}.s2-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin:25px 0;padding:23px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.s2-stats dt{font-size:11px;color:var(--muted);margin-bottom:7px}.s2-stats dd{font-size:21px;line-height:1.5;font-weight:650;letter-spacing:-.025em;margin:0;font-variant-numeric:tabular-nums}.s2-result-note{padding:16px 20px;background:var(--accent-soft);border-left:3px solid var(--accent);font-size:13px;line-height:1.9}.s2-assumption{font-size:11px;color:var(--muted);line-height:1.9;padding-top:18px;margin-bottom:0}.s2-ledger{padding-left:24px;font-size:13px;line-height:1.9}.s2-ledger li{padding:8px 0 8px 5px}.s2-bars{display:grid;gap:14px;margin:24px 0}.s2-bars>div{display:grid;grid-template-columns:65px 1fr 90px;gap:12px;align-items:center;font-size:12px}.s2-bars meter{width:100%;height:20px;accent-color:var(--accent)}.s2-bars b{font-size:11px;text-align:right}.s2-live .concept-figure{background:var(--bg);margin:25px 0;padding:20px}.s2-live p{line-height:1.85}.s2-live{min-width:0}
@media(max-width:650px){.s2-controls{grid-template-columns:1fr;gap:20px}.s2-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.s2-stats dd{font-size:20px}.s2-bars>div{grid-template-columns:50px 1fr 80px;gap:7px}.s2-flow li{padding:12px}.s2-flow li b{font-size:12px}.s2-table th,.s2-table td{padding:9px 7px}.s2-result-note{padding:14px;font-size:12px}.s2-live .concept-figure{padding:15px}.s2-lab h3{font-size:22px}}
.network-scroll{overflow:auto}.s2-network svg{display:block;min-width:570px;width:100%;height:auto}.s2-network rect{fill:var(--bg);stroke:var(--line-strong);stroke-width:1.2}.s2-network .service-boundary{fill:var(--accent-soft);stroke:var(--accent);stroke-dasharray:4 4;opacity:.8}.s2-network text{fill:var(--text);font-family:inherit}.s2-network .node-title{font-size:13px;font-weight:600}.s2-network .node-sub{font-size:10px;fill:var(--muted)}.s2-network .boundary-label{font-size:11px;fill:var(--accent)}.s2-network .edge{fill:none;stroke:var(--accent);stroke-width:1.5}.s2-network marker path{fill:var(--accent)}.s2-network .edge-label{font-size:10px;fill:var(--muted)}.s2-network .replication,.s2-network .event{stroke-dasharray:4 3}

.s2-design-note{display:block;font-size:12px;margin:24px 0;color:var(--muted)}.s2-design-note textarea{display:block;width:100%;resize:vertical;min-height:110px;margin-top:10px;padding:13px;border:1px solid var(--line-strong);border-radius:8px;background:var(--bg);color:var(--text);font-family:inherit;font-size:13px;line-height:1.8}

/* Foundations: readable code, deployment boundaries, and measured time budgets. */
.s2-code-examples{margin:32px 0}.s2-code-examples figure{margin:22px 0}.s2-code-examples figcaption{font-size:12px;font-weight:600;margin-bottom:10px}.s2-code-examples pre{max-width:100%;overflow:auto;background:var(--bg);border:1px solid var(--line-strong);border-radius:10px;padding:20px;font-size:12px;line-height:1.9;tab-size:4}.s2-code-examples code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.s2-code-examples>p{font-size:12px;color:var(--muted)}
.deployment-entry,.deployment-db{padding:17px;text-align:center;border:1px solid var(--line-strong);border-radius:9px;background:var(--bg);font-size:13px;font-weight:600}.deployment-entry span{font-weight:400;color:var(--muted);padding:0 8px}.deployment-arrow{text-align:center;color:var(--muted);font-size:11px;padding:14px}.deployment-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.deployment-grid>section{padding:14px;border:1px dashed var(--accent);border-radius:10px;min-width:0}.deployment-grid h4{font-size:13px;margin:0 0 15px}.s2-deployment small{display:block;color:var(--muted);font-size:10px;font-weight:400;margin-top:5px}.deployment-master{padding:12px;background:var(--accent-soft);font-size:12px;border-radius:6px}.deployment-management{font-size:10px!important;line-height:1.5!important;color:var(--muted);margin:10px 0!important}.deployment-workers{display:grid;gap:6px}.deployment-workers>div{border:1px solid var(--line);padding:10px;background:var(--bg);border-radius:6px;font-size:11px}
.latency-comparison{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:28px 0}.latency-comparison section{min-width:0;border-top:2px solid var(--accent);padding-top:14px}.latency-comparison h4{font-size:13px;margin:0 0 18px}.latency-comparison dl{margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 12px}.latency-comparison dt{font-size:11px;color:var(--muted)}.latency-comparison dd{margin:4px 0 0;font-size:23px;font-weight:650;letter-spacing:-.04em;font-variant-numeric:tabular-nums}.latency-comparison small{font-size:12px;font-weight:400;letter-spacing:0}.latency-traces figcaption span{display:block;font-size:11px;color:var(--muted);margin-top:7px}.latency-trace{margin:24px 0}.latency-trace b{font-size:12px}.latency-track{display:flex;height:22px;background:var(--line);margin:10px 0;border-radius:4px;overflow:hidden}.latency-track>span{height:100%;flex-shrink:0}.latency-trace p{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:10px!important}.latency-trace i{display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:5px}.network{background:#7d8998}.app-wait{background:#d59b29}.app-work{background:#467fd9}.db-wait{background:#c87563}.db-work{background:#4d9481}
@media(max-width:650px){.deployment-grid{grid-template-columns:1fr}.s2-code-examples pre{padding:14px;font-size:11px}.latency-comparison{gap:15px}.latency-comparison dd{font-size:21px}}

@media(max-width:650px){.latency-comparison dl{grid-template-columns:1fr}}
.s2-deployment{line-height:1.45}.s2-deployment .deployment-grid>section{margin:0}.s2-deployment .deployment-workers{grid-template-columns:repeat(2,minmax(0,1fr))}.s2-deployment small{line-height:1.45;margin-top:3px}.s2-deployment .deployment-entry,.s2-deployment .deployment-db{padding:12px}.s2-deployment .deployment-arrow{padding:10px}.s2-deployment .deployment-workers>div{padding:8px}

.runtime-counts{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 24px}.runtime-counts>span{padding:10px 14px;border-radius:10px;background:var(--nav-fill);font-size:12px}.runtime-counts b{font-size:18px;margin-right:4px;font-variant-numeric:tabular-nums}.s2-deployment figcaption>span{display:block;font-size:12px;color:var(--muted);margin-top:6px}

.process-thread-comparison{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:24px 0}.process-thread-comparison h4{font-size:15px;margin:0 0 16px}.process-memory{border:1px solid var(--line-strong);border-radius:12px;padding:18px;margin:12px 0}.process-memory>b{display:block;font-size:14px}.process-memory>span{display:block;padding:10px;margin-top:10px;border-radius:8px;background:var(--nav-fill);font-size:13px}.process-memory>p{font-size:13px!important;margin:14px 0 0!important}.process-thread-figure figcaption>span{display:block;color:var(--muted);font-size:12px;margin-top:8px}@media(max-width:800px){.process-thread-comparison{grid-template-columns:1fr}}