.pe-wv-host{min-width:0}.wv-page{max-width:1280px!important}.wv-lab{--wv-bg:#101b32;--wv-grid:#24334b;--wv-text:#e6eefb;--wv-muted:#9cabc4;--wv-x:#48d5dd;--wv-v:#a0b9ff;--wv-a:#f8bb61;--wv-potential:#bd9bff;--wv-kinetic:#48d5dd;--wv-surface:var(--pe-surface,#fff);--wv-ink:var(--pe-text,#12213b);--wv-secondary:var(--pe-text-muted,#5c6a80);--wv-border:var(--pe-border,#dfe6f1);font-family:Nunito,system-ui,sans-serif;color:var(--wv-ink);min-width:0;line-height:1.5}.wv-lab *{box-sizing:border-box}.wv-lab [hidden]{display:none!important}.wv-lab button,.wv-lab select,.wv-lab input{font:inherit}.wv-lab button,.wv-lab select{cursor:pointer}.wv-lab button:disabled,.wv-lab input:disabled,.wv-lab select:disabled{cursor:default;opacity:.5}.wv-lab :focus-visible{outline:3px solid #5797ff;outline-offset:3px}.wv-eyebrow{font-size:10px;font-weight:900;letter-spacing:.14em;color:var(--pe-blue-ink,#2256b2)}.wv-explorer{border-bottom:1px solid var(--wv-border);padding-bottom:22px;margin-bottom:27px}.wv-explorer-label{display:flex;align-items:center;gap:15px;margin-bottom:12px}.wv-explorer-label>span+span{font-size:12px;color:var(--wv-secondary)}.wv-tabs{display:flex;gap:7px;flex-wrap:wrap}.wv-tabs button{display:flex;align-items:center;gap:7px;min-height:39px;border:1px solid var(--wv-border);border-radius:9px;padding:7px 11px;background:var(--wv-surface);color:var(--wv-secondary);font-weight:800;font-size:12px;transition:background .15s,transform .15s}.wv-tabs small{font-size:10px;opacity:.65;font-weight:700}.wv-tabs button:hover{transform:translateY(-1px)}.wv-tabs button[aria-selected=true]{background:#1854b5;border-color:#1854b5;color:#fff;box-shadow:0 3px 8px #123c8223}.wv-scene-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:21px}.wv-scene-head h2{font-size:clamp(24px,3vw,34px);line-height:1.16;letter-spacing:-.035em;margin:6px 0 8px;font-weight:900}.wv-scene-head p{font-size:14px;max-width:760px;color:var(--wv-secondary);margin:0}.wv-model-tag{white-space:nowrap;font-size:9px;letter-spacing:.13em;font-weight:900;color:var(--wv-secondary);border:1px solid var(--wv-border);padding:7px 10px;border-radius:6px;margin-top:5px}.wv-workbench{display:grid;grid-template-columns:minmax(0,1fr) 274px;align-items:start;gap:22px}.wv-experiment{min-width:0}.wv-stage{background:radial-gradient(ellipse at 50% 100%,#1c3552 0,transparent 70%),var(--wv-bg);color:var(--wv-text);border:1px solid #22334d;border-radius:17px;overflow:hidden;box-shadow:0 10px 28px #0b173619}.wv-stage-label{padding:16px 20px 0;display:flex;justify-content:space-between;gap:12px;align-items:center;line-height:1.3}.wv-stage-label>span:first-child{display:flex;gap:8px;align-items:center;font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--wv-muted)}.wv-stage-label i{display:block;flex:none;width:6px;height:6px;border-radius:50%;background:var(--wv-x);box-shadow:0 0 10px #48d5dd80}.wv-phase{font:11px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--wv-muted);font-variant-numeric:tabular-nums}.wv-svg{display:block;width:100%;height:auto;overflow:hidden}.wv-svg text{font-family:Nunito,system-ui,sans-serif;font-variant-numeric:tabular-nums}.wv-legend{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;padding:3px 10px 15px;color:var(--wv-muted);font-size:11px}.wv-legend>span{display:flex;align-items:center;gap:7px}.wv-legend>span:before{content:"";height:2px;width:13px;background:var(--wv-x)}.wv-legend>.is-v:before{background:var(--wv-v)}.wv-legend>.is-a:before{background:var(--wv-a)}.wv-transport{padding:16px 0 12px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}.wv-play-actions{display:flex;gap:7px;flex-wrap:wrap}.wv-lab .wv-transport button{border:1px solid var(--wv-border);background:var(--wv-surface);border-radius:8px;min-height:41px;padding:8px 12px;color:var(--wv-ink);font-size:12px;font-weight:800}.wv-lab .wv-transport .wv-play{background:#1854b5;border-color:#1854b5;color:#fff;min-width:100px;box-shadow:0 3px 8px #123c8220}.wv-play span{margin-left:5px}.wv-speed{display:flex;gap:7px;align-items:center;margin-left:auto;font-size:11px;color:var(--wv-secondary)}.wv-speed select{font-size:12px;border-radius:7px;background:var(--wv-surface);color:var(--wv-ink);border:1px solid var(--wv-border);padding:7px 9px;min-height:36px}.wv-timeline{flex-basis:100%;padding:5px 0 0}.wv-timeline>label{display:flex;justify-content:space-between;font-size:11px;color:var(--wv-secondary);margin-bottom:0}.wv-timeline output{font-weight:800;font-variant-numeric:tabular-nums;color:var(--wv-ink)}.wv-lab input[type=range]{width:100%;margin:6px 0;height:19px;accent-color:#2366cd;cursor:ew-resize}.wv-timeline>div{display:flex;justify-content:space-between;font-size:10px;color:var(--wv-secondary)}.wv-equations{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;padding-top:4px}.wv-equation{border-top:2px solid #4ab9c7;padding:11px 10px 12px;background:var(--wv-surface);border-radius:0 0 8px 8px;min-width:0}.wv-equation.is-v{border-top-color:#7f9be8}.wv-equation.is-a{border-top-color:#dea253}.wv-equation>span{display:block;text-transform:uppercase;letter-spacing:.09em;font-size:9px;font-weight:900;color:var(--wv-secondary);margin-bottom:5px}.wv-equation strong{display:block;font-family:Georgia,"Times New Roman",serif;font-size:clamp(14px,1.4vw,18px);font-weight:400;line-height:1.4;overflow-wrap:anywhere}.wv-equation output{display:block;font-size:11px;line-height:1.5;color:var(--wv-secondary);font-variant-numeric:tabular-nums;margin-top:5px;overflow-wrap:anywhere}.wv-parameters{background:var(--wv-surface);border:1px solid var(--wv-border);border-radius:14px;padding:20px;min-width:0}.wv-parameter-head h3{font-size:18px;line-height:1.2;letter-spacing:-.02em;margin:6px 0}.wv-parameter-head p{color:var(--wv-secondary);font-size:12px;margin:0 0 18px}.wv-field{margin-bottom:13px}.wv-field-top{display:flex;justify-content:space-between;gap:7px;align-items:center;font-size:12px}.wv-field label{color:var(--wv-ink);font-weight:700}.wv-field output{font:11px/1.4 ui-monospace,SFMono-Regular,monospace;color:var(--pe-blue-ink,#2256b2);white-space:nowrap;font-variant-numeric:tabular-nums}.wv-field select{width:100%;border:1px solid var(--wv-border);background:var(--wv-surface);color:var(--wv-ink);padding:9px;border-radius:7px;margin-top:7px;font-size:12px}.wv-presets{display:flex;gap:5px;flex-wrap:wrap;margin-top:9px}.wv-presets>span{font-size:10px;color:var(--wv-secondary);flex-basis:100%}.wv-presets button{font-family:Georgia,serif;font-size:14px;min-width:38px;min-height:32px;border:1px solid var(--wv-border);background:var(--wv-surface);color:var(--wv-ink);border-radius:6px;padding:4px 8px}.wv-presets button[aria-pressed=true]{background:#eaf1ff;color:#164fae;border-color:#7fabea}.wv-metrics{padding-top:15px;margin-top:17px;border-top:1px solid var(--wv-border)}.wv-metrics>div{display:flex;justify-content:space-between;gap:12px;padding:5px 0;align-items:baseline}.wv-metrics span{font-size:11px;color:var(--wv-secondary)}.wv-metrics strong{font-size:14px;font-variant-numeric:tabular-nums;font-weight:900;text-align:right;white-space:nowrap}.wv-observation{font-size:13px;line-height:1.65;border-left:3px solid #5c99dd;padding:1px 0 1px 13px;margin:22px 0;color:var(--wv-ink)}.wv-explanation{border-top:1px solid var(--wv-border);font-size:13px;padding-top:15px}.wv-explanation summary{cursor:pointer;font-weight:800;color:var(--pe-blue-ink,#2256b2);padding:5px 0}.wv-explanation>div{padding:5px 0 12px;max-width:900px;color:var(--wv-secondary);line-height:1.75}.wv-explanation h3{font-size:13px;color:var(--wv-ink);margin-bottom:4px}.wv-footnote{color:var(--wv-secondary);font-size:10px;margin-top:17px;line-height:1.6}.wv-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.wv-mobile-picker{display:none}.wv-lab[data-mode=exam] .wv-model-tag,.wv-lab[data-mode=exam] .wv-explorer{display:none}.wv-lab[data-mode=exam] .wv-scene-head h2{font-size:20px}.wv-lab[data-mode=exam] .wv-workbench{grid-template-columns:minmax(0,1fr)}.wv-lab[data-mode=exam] .wv-parameters{border:0;padding:0}.wv-lab[data-mode=exam] [data-fields]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.wv-lab[data-mode=exam] .wv-parameter-head{display:none}
@media(max-width:1060px){.wv-workbench{grid-template-columns:minmax(0,1fr) 240px;gap:15px}.wv-parameters{padding:16px}.wv-tabs{gap:5px}.wv-tabs button{padding:6px 8px}.wv-speed{margin-left:0}.wv-stage-label{padding:14px 14px 0}.wv-phase{font-size:10px}.wv-stage-label>span:first-child{font-size:9px}.wv-model-tag{display:none}}
@media(max-width:780px){.wv-workbench{grid-template-columns:minmax(0,1fr)}.wv-parameters [data-fields]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 22px}.wv-parameter-head p{margin-bottom:12px}.wv-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.wv-metrics>div{display:block}.wv-metrics span,.wv-metrics strong{display:block;text-align:left}.wv-equation strong{font-size:17px}.wv-speed{margin-left:auto}.wv-stage-label>span:first-child{font-size:10px}.wv-phase{font-size:11px}}
@media(max-width:480px){.wv-scene-head h2{font-size:26px}.wv-scene-head p{font-size:13px}.wv-explorer{padding-bottom:17px;margin-bottom:20px}.wv-explorer-label>span+span{display:none}.wv-tabs{display:none}.wv-mobile-picker{display:block;font-size:11px;color:var(--wv-secondary)}.wv-mobile-picker select{width:100%;margin-top:6px;min-height:44px;font-size:14px;border-radius:8px;border:1px solid var(--wv-border);background:var(--wv-surface);color:var(--wv-ink);padding:9px 12px}.wv-stage{border-radius:12px}.wv-stage-label{flex-wrap:wrap;gap:5px;padding:13px 14px 2px}.wv-stage-label>span:first-child{font-size:9px}.wv-phase{font-size:10px}.wv-legend{font-size:10px;gap:13px}.wv-transport{gap:10px;padding-top:12px}.wv-play-actions{width:100%;display:grid;grid-template-columns:1fr 1fr 1fr;gap:5px}.wv-lab .wv-transport button{padding:8px 5px;min-height:44px;font-size:11px}.wv-lab .wv-transport .wv-play{min-width:0}.wv-speed{margin-left:0}.wv-equations{grid-template-columns:minmax(0,1fr);gap:0}.wv-equation{display:grid;grid-template-columns:90px 1fr;gap:3px 10px;padding:9px 11px;border-top:1px solid var(--wv-border);border-left:2px solid #4ab9c7;border-radius:0}.wv-equation.is-v{border-top-color:var(--wv-border);border-left-color:#7f9be8}.wv-equation.is-a{border-top-color:var(--wv-border);border-left-color:#dea253}.wv-equation>span{grid-row:span 2;margin:0;align-self:center;font-size:9px}.wv-equation strong{font-size:17px}.wv-equation output{margin-top:0;font-size:11px}.wv-parameters{padding:16px}.wv-parameters [data-fields]{gap:0 15px}.wv-field label{font-size:11px}.wv-field-top{display:block}.wv-field output{display:block;margin-top:3px}.wv-presets button{min-height:40px;min-width:43px}.wv-lab input[type=range]{height:28px;margin:4px 0}.wv-metrics strong{font-size:12px}.wv-metrics span{font-size:10px}.wv-observation{font-size:12px}.wv-footnote{font-size:10px}}
.wv-lab button,.wv-lab .wv-transport button,.wv-lab .wv-presets button,.wv-lab select{min-height:44px}.wv-lab input[type=range]{min-height:32px}
@media(pointer:coarse){.wv-lab input[type=range]{min-height:44px}}
@media(prefers-reduced-motion:reduce){.wv-tabs button{transition:none}.wv-tabs button:hover{transform:none}}
.pe-wv-host{container-type:inline-size;container-name:wv}
.wv-metrics strong{white-space:normal;overflow-wrap:anywhere}
.wv-extra-equations{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin:14px 0}.wv-extra-equations>div{border-left:2px solid var(--wv-border);padding:3px 12px}.wv-extra-equations span{display:block;font-size:11px;color:var(--wv-secondary)}.wv-extra-equations strong{display:block;font-family:Georgia,serif;font-weight:400;font-size:18px;color:var(--wv-ink);overflow-wrap:anywhere}
.wv-lab[data-experiment=energia] .wv-equation.is-v{border-top-color:#ad8ade;border-left-color:#ad8ade}.wv-lab[data-experiment=energia] .wv-equation.is-a{border-top-color:#8a97ac;border-left-color:#8a97ac}
.wv-tabs{display:grid;grid-template-columns:repeat(5,minmax(0,1fr))}.wv-tabs button{text-align:left}
@container wv (max-width:780px){.wv-tabs{display:flex}}
@container wv (max-width:480px){.wv-tabs{display:none}}
@container wv (max-width:1060px){.wv-workbench{grid-template-columns:minmax(0,1fr) 240px;gap:15px}.wv-parameters{padding:16px}.wv-tabs{gap:5px}.wv-tabs button{padding:6px 8px}.wv-speed{margin-left:0}.wv-stage-label{padding:14px 14px 0}.wv-phase{font-size:10px}.wv-stage-label>span:first-child{font-size:9px}.wv-model-tag{display:none}}
@container wv (max-width:780px){.wv-workbench{grid-template-columns:minmax(0,1fr)}.wv-parameters [data-fields]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 22px}.wv-parameter-head p{margin-bottom:12px}.wv-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.wv-metrics>div{display:block}.wv-metrics span,.wv-metrics strong{display:block;text-align:left}.wv-equation strong{font-size:17px}.wv-speed{margin-left:auto}.wv-stage-label>span:first-child{font-size:10px}.wv-phase{font-size:11px}}
@container wv (max-width:480px){.wv-scene-head h2{font-size:26px}.wv-scene-head p{font-size:13px}.wv-explorer{padding-bottom:17px;margin-bottom:20px}.wv-explorer-label>span+span{display:none}.wv-tabs{display:none}.wv-mobile-picker{display:block;font-size:11px;color:var(--wv-secondary)}.wv-mobile-picker select{width:100%;margin-top:6px;min-height:44px;font-size:14px;border-radius:8px;border:1px solid var(--wv-border);background:var(--wv-surface);color:var(--wv-ink);padding:9px 12px}.wv-stage{border-radius:12px}.wv-stage-label{flex-wrap:wrap;gap:5px;padding:13px 14px 2px}.wv-stage-label>span:first-child{font-size:9px}.wv-phase{font-size:10px}.wv-legend{font-size:10px;gap:13px}.wv-transport{gap:10px;padding-top:12px}.wv-play-actions{width:100%;display:grid;grid-template-columns:1fr 1fr 1fr;gap:5px}.wv-lab .wv-transport button{padding:8px 5px;min-height:44px;font-size:11px}.wv-lab .wv-transport .wv-play{min-width:0}.wv-speed{margin-left:0}.wv-equations{grid-template-columns:minmax(0,1fr);gap:0}.wv-equation{display:grid;grid-template-columns:90px 1fr;gap:3px 10px;padding:9px 11px;border-top:1px solid var(--wv-border);border-left:2px solid #4ab9c7;border-radius:0}.wv-equation.is-v{border-top-color:var(--wv-border);border-left-color:#7f9be8}.wv-equation.is-a{border-top-color:var(--wv-border);border-left-color:#dea253}.wv-equation>span{grid-row:span 2;margin:0;align-self:center;font-size:9px}.wv-equation strong{font-size:17px}.wv-equation output{margin-top:0;font-size:11px}.wv-parameters{padding:16px}.wv-parameters [data-fields]{gap:0 15px}.wv-field label{font-size:11px}.wv-field-top{display:block}.wv-field output{display:block;margin-top:3px}.wv-presets button{min-height:44px;min-width:43px}.wv-lab input[type=range]{height:32px;margin:4px 0}.wv-metrics strong{font-size:12px}.wv-metrics span{font-size:10px}.wv-observation{font-size:12px}.wv-footnote{font-size:10px}}

/* The chapter strip keeps the large collection approachable without a wall of tabs. */
.wv-chapters{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:17px 0 13px}
.wv-chapters button{min-height:57px;display:flex;align-items:center;gap:11px;padding:10px 12px;text-align:left;background:var(--wv-surface);color:var(--wv-secondary);border:1px solid var(--wv-border);border-radius:10px;font-size:12px;font-weight:800;line-height:1.25}
.wv-chapters small{width:26px;height:26px;display:grid;place-items:center;flex:none;border-radius:50%;background:#889bb31a;font:11px ui-monospace,monospace}
.wv-chapters button[aria-pressed=true]{border-color:#2562bd;background:#2562bd0c;color:var(--pe-blue-ink,#2256b2)}
.wv-chapters button[aria-pressed=true] small{color:#fff;background:#1854b5}
.wv-lab .wv-tabs{display:flex;flex-wrap:wrap;gap:7px}
.wv-lab .wv-tabs button{min-height:44px}
.wv-lab .wv-speed select{min-height:44px}
.wv-lab .wv-equation strong{overflow-wrap:anywhere;line-height:1.45;font-size:clamp(15px,1.65vw,20px)}
.wv-lab .wv-equation output{overflow-wrap:anywhere}
.wv-phase{max-width:100%;overflow-wrap:anywhere}
.wv-scene-head h2{max-width:840px}
.wv-concept-guide [data-guide-cards]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.wv-concept-guide article{border:1px solid var(--wv-border);border-radius:10px;padding:16px;background:var(--wv-surface)}
.wv-concept-guide article h3{font-size:13px;line-height:1.4;margin:0 0 7px}
.wv-concept-guide article p{font-size:12px;line-height:1.65;margin:0}
@container wv (max-width:600px){.wv-concept-guide [data-guide-cards]{grid-template-columns:minmax(0,1fr)}}
@container wv (max-width:800px){.wv-chapters{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.wv-chapters button{min-height:48px;font-size:11px}.wv-chapters small{width:22px;height:22px}.wv-model-tag{display:none}}
@container wv (max-width:500px){.wv-chapters{gap:5px;margin-top:12px}.wv-chapters button{padding:8px;gap:7px;font-size:10px}.wv-lab .wv-tabs{display:none}.wv-lab .wv-mobile-picker{display:block}.wv-equation strong{font-size:16px!important}}

