.phys-page{--p-accent:#9333ea;--p-warm:#c2410c;--p-tint:color-mix(in srgb, var(--p-accent) 6%, var(--color-bg));--p-line:color-mix(in srgb, var(--color-text) 16%, var(--color-bg));--p-ink:#08060f;--p-edge:#2a2040;width:100%;max-width:1180px;color:var(--color-text);margin-inline:auto;padding:42px clamp(20px,4vw,56px) 64px}[data-theme=dark] .phys-page{--p-accent:#d8b4fe;--p-warm:#fdba74}.phys-page *,.phys-page :before,.phys-page :after{box-sizing:border-box}.phys-page :is(.phys-atlas,.phys-chapter,.pu-index-body>section){max-width:none;min-height:0;display:block}.phys-page :is(h1,h2,h3,h4,p,table,figure){margin:0}.phys-page p{color:var(--color-muted);line-height:1.8}.phys-page p+p{margin-top:16px}.phys-page h1{letter-spacing:-.055em;margin-block:16px 24px;font-size:clamp(40px,6vw,72px);line-height:1.06}.phys-page h1 span{color:var(--p-accent)}.phys-page h2{letter-spacing:-.035em;text-wrap:balance;max-width:28ch;margin-block:12px 20px;font-size:clamp(28px,3.5vw,41px);line-height:1.18}.phys-page h3{letter-spacing:-.02em;margin-bottom:13px;font-size:clamp(18px,2vw,24px);line-height:1.3}.phys-page h4{margin-block:9px 7px;font-size:17px}.phys-page>section>h3{margin-top:34px}.phys-page a{color:var(--p-accent);text-underline-offset:5px}.phys-page strong{color:var(--color-text)}.phys-page .phys-eyebrow{color:var(--p-accent);letter-spacing:.1em;font:700 11px/1.6 ui-monospace,SFMono-Regular,monospace;display:block}.phys-page .phys-note{font-size:13.5px}.phys-page .phys-back{align-items:center;min-height:44px;font-size:14px;display:inline-flex}.phys-page .phys-hero{grid-template-columns:1.4fr 1fr;align-items:center;gap:48px;padding-block:45px 40px;display:grid}.phys-page .phys-lead{max-width:60ch;font-size:18px}.phys-page .phys-hero-actions{flex-wrap:wrap;align-items:center;gap:20px;margin-top:28px;font-size:14px;font-weight:600;display:flex}.phys-page .phys-button{background:var(--p-accent);min-height:48px;color:var(--color-bg);border-radius:8px;align-items:center;padding:12px 20px;text-decoration:none;display:inline-flex}.phys-page .phys-hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.phys-page .phys-hero-stats>div{border:1px solid var(--p-line);background:var(--p-tint);border-radius:14px;padding:18px}.phys-page .phys-hero-stats strong{color:var(--p-accent);font-variant-numeric:tabular-nums;font-size:30px;line-height:1;display:block}.phys-page .phys-hero-stats span{margin-top:7px;font-size:13px;display:block}.phys-page .phys-hero-stats small{color:var(--color-muted);margin-top:3px;font-size:11.5px;line-height:1.5;display:block}.phys-page .phys-atlas{border-bottom:1px solid var(--p-line);margin-block:16px 40px;padding-bottom:36px;scroll-margin-top:84px}.phys-page .phys-atlas-head{max-width:80ch;margin-bottom:8px}.phys-page .phys-meta{border-block:1px solid var(--p-line);color:var(--color-muted);flex-wrap:wrap;gap:10px 24px;padding-block:18px;font-size:12px;display:flex}.phys-page .phys-contents{grid-template-columns:repeat(3,minmax(0,1fr));gap:0 32px;margin-top:24px;display:grid}.phys-page .phys-contents a{border-bottom:1px solid var(--p-line);gap:12px;padding-block:13px;font-size:14px;text-decoration:none;display:flex}.phys-page .phys-contents a span{color:var(--color-muted);font:12px/1.8 ui-monospace,monospace}.phys-page .phys-contents a[aria-current=true]{color:var(--p-accent);box-shadow:inset 0 -2px var(--p-accent);font-weight:650}.phys-bar{pointer-events:none;z-index:30;top:calc(12px + env(safe-area-inset-top,0px));border:1px solid var(--p-line);background:color-mix(in srgb, var(--color-surface) 88%, transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);width:max-content;max-width:min(620px,100vw - 112px);box-shadow:var(--shadow-soft);border-radius:999px;position:fixed;left:50%;overflow:hidden;transform:translate(-50%)}.phys-bar-body{align-items:center;gap:14px;padding:10px 20px 11px;font-size:13px;display:flex}.phys-bar-body strong{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.phys-bar-body a{pointer-events:auto;color:var(--color-muted);margin-left:auto;font-size:12px;text-decoration:none}.phys-bar-track{background:var(--p-line);height:3px}.phys-bar-track>span{background:var(--p-accent);height:100%;transition:width .12s linear;display:block}.phys-page .phys-chapter{margin:76px 0 0;scroll-margin-top:84px}.phys-page .phys-chapter-heading{margin-bottom:28px}.phys-page .phys-chapter-heading p{max-width:78ch}.phys-page .phys-callout{background:var(--p-tint);border-left:3px solid var(--p-accent);border-radius:0 12px 12px 0;margin-block:28px;padding:24px 28px}.phys-page .phys-callout>strong{margin-bottom:8px;font-size:18px;display:block}.phys-page .phys-card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-block:26px;display:grid}.phys-page .phys-card-grid>article{border:1px solid var(--p-line);background:var(--color-surface);border-radius:14px;min-width:0;padding:22px}.phys-page .phys-card-grid p{font-size:14px}.phys-page .phys-card-grid .phys-eyebrow{margin-bottom:10px}.phys-page .phys-table-wrap{margin-block:26px;overflow-x:auto}.phys-page table{border-collapse:collapse;text-align:left;width:100%;font-size:14px;line-height:1.75}.phys-page th,.phys-page td{vertical-align:top;border-bottom:1px solid var(--p-line);min-width:165px;padding:15px 16px}.phys-page thead th{background:var(--p-tint);font-size:12px}.phys-page td{color:var(--color-muted)}.phys-page caption{color:var(--color-muted);text-align:left;padding-bottom:14px}.phys-page .phys-scale{gap:2px;margin:26px 0;padding:0;list-style:none;display:grid}.phys-page .phys-scale>li{border-bottom:1px solid var(--p-line);grid-template-columns:120px minmax(0,1fr);align-items:baseline;gap:20px;margin:0;padding:13px 0;display:grid}.phys-page .phys-scale-power{color:var(--p-accent);font-variant-numeric:tabular-nums;font:13px ui-monospace,monospace}.phys-page .phys-scale strong{font-size:15px}.phys-page .phys-scale p{margin-top:3px;font-size:13.5px}.phys-page .phys-open-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-block:26px;display:grid}.phys-page .phys-open-grid>article{border:1px solid var(--p-line);background:var(--color-surface);border-radius:14px;min-width:0;padding:22px}.phys-page .phys-open-grid h3{margin-block:11px;font-size:19px}.phys-page .phys-open-grid p{font-size:14px}.phys-page .phys-level{border-top:1px solid var(--p-line);margin-top:13px;padding-top:13px;font-size:13px}.phys-page .phys-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:26px 0;padding:0;list-style:none;display:grid}.phys-page .phys-steps>li{border-top:1px solid var(--p-line);margin:0;padding-top:16px}.phys-page .phys-steps strong{margin-block:10px 8px;font-size:16px;display:block}.phys-page .phys-steps p{font-size:14px}.phys-page .phys-signal{border-left:2px solid var(--p-warm);margin-top:12px;padding-left:13px;font-size:13px}.phys-page .phys-resource-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-block:22px;display:grid}.phys-page .phys-resource-grid>article{border:1px solid var(--p-line);background:var(--color-surface);border-radius:12px;min-width:0;padding:18px 20px}.phys-page .phys-resource-grid h4 a{text-decoration:none}.phys-page .phys-resource-grid p{font-size:13px}.phys-page .phys-next-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:28px;display:grid}.phys-page .phys-next-grid>a{border:1px solid var(--p-line);background:var(--p-tint);border-radius:14px;padding:26px;text-decoration:none}.phys-page .phys-next-grid h3{margin-top:12px}.phys-page .phys-next-grid p{font-size:14px}.phys-page .phys-footer{border-top:1px solid var(--p-line);flex-wrap:wrap;justify-content:space-between;gap:16px;margin-top:54px;padding-top:24px;font-size:13px;display:flex}.phys-page :is(button,a,input,summary,[tabindex]):focus-visible{outline:3px solid var(--p-warm);outline-offset:4px}.phys-page .pu{margin-block:26px}.phys-page .pu button{cursor:pointer;border:1px solid var(--p-line);background:var(--color-bg);min-height:44px;color:var(--color-text);border-radius:9px;padding:8px 14px;font:600 12.5px/1.5 system-ui,sans-serif}.phys-page .pu button:hover{border-color:var(--p-accent)}.phys-page .pu-controls{flex-wrap:wrap;justify-content:space-between;align-items:end;gap:14px 24px;display:flex}.phys-page .pu-modes{flex-wrap:wrap;gap:8px;display:flex}.phys-page .pu-modes button[aria-pressed=true]{background:var(--p-accent);border-color:var(--p-accent);color:var(--color-bg)}.phys-page .pu-search{flex:220px;gap:6px;max-width:300px;font-size:12px;display:grid}.phys-page .pu-search input{border:1px solid var(--p-line);background:var(--color-bg);width:100%;min-width:0;min-height:44px;color:var(--color-text);font:inherit;border-radius:8px;padding:10px 14px;font-size:15px}.phys-page .pu-routes{flex-wrap:wrap;align-items:center;gap:8px;padding-block:20px;display:flex}.phys-page .pu-routes>span{flex-basis:100%;margin-bottom:3px}.phys-page .pu-routes button[aria-pressed=true]{border-color:var(--p-accent);background:var(--p-tint);color:var(--p-accent)}.phys-page .pu-legend{flex-wrap:wrap;gap:6px;display:flex}.phys-page .pu-legend button{min-height:44px;color:var(--color-muted);border-radius:999px;align-items:center;gap:7px;padding:6px 12px;font-size:12px;display:inline-flex}.phys-page .pu-legend button[aria-pressed=true]{border-color:var(--p-accent);background:var(--p-tint);color:var(--color-text)}.phys-page .pu-dot{background:hsl(var(--h) 66% 48%);border-radius:50%;flex:0 0 8px;width:8px;height:8px}[data-theme=dark] .phys-page .pu-dot{background:hsl(var(--h) 75% 70%)}.phys-page .pu-status{flex-wrap:wrap;align-items:center;gap:10px 16px;margin-block:14px;display:flex}.phys-page .pu-status p,.phys-page .pu-skip{font-size:12px}.phys-page .pu-clear{min-height:32px;color:var(--p-accent);background:0 0;border:0;padding:5px 10px;text-decoration:underline}.phys-page .pu-skip{margin-left:auto}.phys-page .pu-route-note{background:var(--p-tint);border-left:2px solid var(--p-accent);border-radius:8px;margin-bottom:16px;padding:12px 18px;font-size:13px}.phys-page .pu-route-stops{flex-wrap:wrap;gap:8px;margin:12px 0 0;padding:0;list-style:none;display:flex}.phys-page .pu-route-stops li{margin:0}.phys-page .pu-route-stops button{text-align:left;align-items:center;gap:8px;display:flex}.phys-page .pu-route-stops button[aria-pressed=true]{color:var(--p-accent);border-color:var(--p-accent)}.phys-page .pu-route-stops span{color:var(--color-muted);font:11px ui-monospace,monospace}.phys-page .pu-help{margin-bottom:16px}.phys-page .pu-observatory{background:var(--p-ink);border:1px solid var(--p-edge);color:#efe6ff;border-radius:22px;overflow:hidden;box-shadow:0 24px 70px #08060f26}.phys-page .pu-head{border-bottom:1px solid var(--p-edge);justify-content:space-between;align-items:center;gap:16px;padding:22px 26px;display:flex}.phys-page .pu-head span{color:#b49ad0;letter-spacing:.16em;font:10px/1.6 ui-monospace,monospace;display:block}.phys-page .pu-head strong{color:#efe6ff;margin-top:7px;font-size:clamp(15px,2vw,21px);font-weight:500;display:block}.phys-page .pu-live{background:#ffb38a;border-radius:50%;flex:0 0 8px;width:8px;height:8px;box-shadow:0 0 16px #ffb38a99}.phys-page .pu-stage{scrollbar-color:#7d6699 #120c1e;overflow:auto}.phys-page .pu-stage.is-zoomed{max-height:min(980px,78svh)}.phys-page .pu-stage svg{width:100%;height:auto;display:block}.phys-page .pu-stage.is-zoomed svg{width:160%;min-width:1000px;max-width:none}.phys-page .pu-horizon{fill:none;stroke:#4c3a68;stroke-width:1.2px}.phys-page .pu-ring{fill:none;stroke:#c3a8e8;stroke-dasharray:2 7;stroke-opacity:.16}.phys-page .pu-ring.is-strong{stroke-dasharray:4 6;stroke-opacity:.44}.phys-page .pu-ring-label{fill:#b49ad0;text-anchor:middle;font:11px ui-monospace,monospace}.phys-page .pu-branch-label{fill:hsl(var(--h) 72% 68%);letter-spacing:.05em;font:700 13px ui-monospace,monospace}.phys-page .pu-core-title{fill:#ffd9a8;letter-spacing:.18em;font:700 15px ui-monospace,monospace}.phys-page .pu-core-sub{fill:#b49ad0;letter-spacing:.1em;font:11px ui-monospace,monospace}.phys-page .pu-web{stroke:#b49ad0;stroke-width:.7px;opacity:.11}.phys-page .pu-route-line{fill:none;stroke:#ffb38a;stroke-width:2px;opacity:.85;stroke-linejoin:round}.phys-page .pu-link{stroke-width:1.6px;opacity:.85}.phys-page .pu-link.is-up{stroke:#ffd9a8}.phys-page .pu-link.is-down{stroke:#ffb38a;stroke-dasharray:5 4}.phys-page .pu-star{cursor:pointer}.phys-page .pu-halo{fill:hsl(var(--h) 80% 62%);opacity:.2}.phys-page .pu-core-dot{fill:hsl(var(--h) 85% 72%)}.phys-page .pu-star.is-off .pu-halo{opacity:.03}.phys-page .pu-star.is-off .pu-core-dot{opacity:.12}.phys-page .pu-star.is-near .pu-core-dot{fill:#ffd9a8}.phys-page .pu-star.is-active .pu-core-dot{fill:#fff}.phys-page .pu-active-ring{fill:none;stroke:#ffb38a;stroke-width:2px}.phys-page .pu-star:focus-visible{outline-offset:3px;outline:3px solid #ffb38a}.phys-page .pu-leader{stroke:#7d6699;stroke-width:1px}.phys-page .pu-name{fill:#efe6ff;font:14px ui-monospace,SFMono-Regular,monospace}.phys-page .pu-name.is-active{fill:#ffb38a;font-weight:700}.phys-page .pu-toolbar{border-top:1px solid var(--p-edge);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px 20px;padding:16px 24px;display:flex}.phys-page .pu-toolbar>div{flex-wrap:wrap;gap:8px;display:flex}.phys-page .pu-toolbar button{color:#efe6ff;background:#1a1329;border-color:#3a2c55}.phys-page .pu-toolbar button[aria-pressed=true]{color:#ffb38a;border-color:#ffb38a}.phys-page .pu-levels{flex-wrap:wrap;gap:8px 18px;margin:0;padding:0;list-style:none;display:flex}.phys-page .pu-levels>li{color:#b49ad0;align-items:center;gap:7px;margin:0;font-size:11.5px;display:flex}.phys-page .pu-levels span{color:#ffd9a8;border:1px solid #3a2c55;border-radius:50%;place-items:center;width:20px;height:20px;font:10px ui-monospace,monospace;display:grid}.phys-page .pu-detail{border:1px solid var(--p-line);background:var(--color-bg);border-radius:14px;margin-top:20px;padding:22px 24px;scroll-margin-top:90px}.phys-page .pu-detail h3{margin-block:10px;font-size:22px}.phys-page .pu-detail p{font-size:14px}.phys-page .pu-world{border-left:2px solid var(--p-warm);margin-top:13px;padding-left:13px}.phys-page .pu-compute{border-left:2px solid var(--p-accent);margin-top:12px;padding-left:13px}.phys-page .pu-life{border:1px solid var(--p-line);background:var(--p-tint);border-left:3px solid #33876f;border-radius:8px;margin-top:16px;padding:16px}.phys-page .pu-life a,.phys-page .pu-chapter-link{align-items:center;min-height:44px;margin-top:8px;font-size:13px;display:inline-flex}.phys-page .pu-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:20px;display:grid}.phys-page .pu-links>div>div{flex-wrap:wrap;gap:7px;margin-top:9px;display:flex}.phys-page .pu-links button{background:var(--color-surface);border-radius:999px;min-height:44px;padding:5px 11px;font-size:12px}.phys-page .pu-links em{color:var(--color-muted);font-size:12.5px}.phys-page .pu-index{border-top:1px solid var(--p-line);margin-top:20px}.phys-page .pu-index>summary{cursor:pointer;padding-block:16px;font-size:15px;font-weight:600}.phys-page .pu-index-body{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px 24px;padding-bottom:16px;display:grid}.phys-page .pu-index-body>section{min-width:0;margin:0}.phys-page .pu-index h4{border-bottom:1px solid var(--p-line);flex-wrap:wrap;align-items:center;gap:4px 8px;margin:0 0 10px;padding-bottom:8px;font-size:13px;display:flex}.phys-page .pu-index h4>span{overflow-wrap:anywhere;flex:auto;min-width:0}.phys-page .pu-index h4 em{color:var(--color-muted);font:11px ui-monospace,monospace}.phys-page .pu-index ul{flex-wrap:wrap;gap:5px;margin:0;padding:0;list-style:none;display:flex}.phys-page .pu-index li{margin:0}.phys-page .pu-index li button{min-height:44px;color:var(--color-muted);border-radius:6px;padding:4px 10px;font:400 12px/1.4 system-ui,sans-serif}.phys-page .pu-index li button.is-compute{color:var(--color-text);font-weight:650}.phys-page .pu-index li button[aria-pressed=true]{border-color:var(--p-warm);color:var(--p-warm)}@media (max-width:980px){.phys-page .phys-hero{grid-template-columns:minmax(0,1fr);gap:28px}.phys-page .phys-contents,.phys-page .phys-card-grid,.phys-page .pu-index-body{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:700px){.phys-page{padding-top:24px}.phys-page .phys-chapter{margin-top:54px}.phys-page .phys-contents,.phys-page .phys-card-grid,.phys-page .phys-open-grid,.phys-page .phys-steps,.phys-page .phys-resource-grid,.phys-page .phys-next-grid,.phys-page .phys-hero-stats,.phys-page .pu-index-body,.phys-page .pu-links{grid-template-columns:minmax(0,1fr)}.phys-page .phys-scale>li{grid-template-columns:minmax(0,1fr);gap:4px}.phys-page .phys-callout{padding:20px}.phys-page .pu-stage:not(.is-zoomed) .pu-branch-label{font-size:16px}.phys-page .pu-head,.phys-page .pu-toolbar,.phys-page .pu-detail{padding:18px}.phys-bar{max-width:calc(100vw - 88px)}.phys-bar-body{gap:10px;padding:8px 15px 9px;font-size:12px}.phys-bar-body a{display:none}}@media (prefers-reduced-motion:reduce){.phys-bar-track>span{transition:none}}