@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root{--ink:#193e40;--muted:#698079;--paper:#f2f3ec;--line:#ced8cd;--orange:#c75c35;--teal:#297a70;--panel:#fbfbf5}*{box-sizing:border-box}html,body{height:100%;margin:0;overflow:hidden}body{font:13px/1.5 'DM Sans',Arial,sans-serif;color:var(--ink);background:var(--paper)}button,input,select{font:inherit;color:inherit}button,summary,select{cursor:pointer}button{background:none;border:1px solid var(--line);border-radius:4px;padding:7px 11px}button:hover{background:#e8ede1}a{color:inherit;text-underline-offset:3px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:3px}input[type=range]{accent-color:var(--teal);cursor:pointer;min-width:0;width:100%;height:20px;margin:3px 0}input[type=checkbox],input[type=radio]{accent-color:var(--teal)}input[type=number],select{background:var(--paper);border:1px solid var(--line);border-radius:3px;padding:5px 7px;min-width:0}input[type=number]{width:63px;text-align:right;font-family:ui-monospace,monospace;font-size:12px}input:disabled{opacity:.45}button:disabled{opacity:.4;cursor:not-allowed}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0)}.topbar{height:56px;display:flex;align-items:center;border-bottom:1px solid var(--line);padding:0 22px;gap:25px;background:var(--panel)}.wordmark{text-decoration:none;font:600 22px 'Space Grotesk',sans-serif;letter-spacing:-1.2px;white-space:nowrap}.wordmark b{font-weight:400}.wordmark>span{color:var(--orange);padding-left:7px}.verdict{font:600 11px ui-monospace,monospace;letter-spacing:.5px;padding:6px 10px;border-radius:3px;background:#e3eadd;color:#42674e;white-space:nowrap}.verdict.bonk{background:#efe0cb;color:#8f632b}.verdict.short{background:#f1e3d7;color:#985633}.topbar nav{display:flex;margin-left:auto;gap:8px}.topbar nav button{border:0;font-size:12px;padding:8px 10px}.workspace{height:calc(100dvh - 56px);display:grid;grid-template-columns:minmax(0,1fr) 350px;overflow:hidden}.lab{min-width:0;min-height:0;display:flex;flex-direction:column;position:relative}.canvas-wrap{position:relative;flex:1;min-height:0;overflow:hidden;background:#e9eee4}.canvas-heading{position:absolute;left:25px;top:22px;z-index:1;pointer-events:none}.canvas-heading>span{display:block;font:600 13px 'Space Grotesk',sans-serif;letter-spacing:1.3px}.canvas-heading b{font-size:11px;font-weight:400;margin-left:8px}.canvas-heading small{font:8px ui-monospace,monospace;letter-spacing:.7px;color:#72867a}.canvas-wrap>svg{width:100%;height:100%;display:block}.locator{position:absolute;right:18px;top:18px;width:132px;padding:6px;background:#f5f7eddd;border-color:#bdcfc0}.locator:hover{background:#f8faf0}.locator svg{display:block;width:120px;height:66px}.locator>span{display:block;font:7px ui-monospace,monospace;letter-spacing:.4px}.live-stats{position:absolute;bottom:45px;left:25px;display:flex;gap:35px;pointer-events:none}.live-stats small{display:block;font:8px ui-monospace,monospace;letter-spacing:1px;color:#547164}.live-stats strong{display:block;font:500 26px 'Space Grotesk',sans-serif;letter-spacing:-1px}.canvas-legend{position:absolute;bottom:16px;left:25px;right:25px;display:flex;align-items:center;gap:16px;font-size:9px;color:#577466;pointer-events:none}.key:before{content:'';width:14px;border-top:2px solid var(--orange);display:inline-block;vertical-align:middle;margin-right:5px}.dashed:before{border-color:var(--teal);border-top-style:dashed}.gray:before{border-color:#97a59a;border-top-style:dotted}.scale-note{margin-left:auto;font:7px ui-monospace,monospace;letter-spacing:.8px}.transport{height:60px;flex-shrink:0;display:flex;align-items:center;padding:10px 20px;gap:9px;background:var(--panel);border-top:1px solid var(--line)}.transport button{font-size:11px;white-space:nowrap;padding:8px 11px}.transport .play{background:var(--ink);color:#fffdf1;border-color:var(--ink);min-width:78px}.timeline{display:flex;align-items:center;gap:10px;flex:1;min-width:30px}.timeline output{font:10px ui-monospace,monospace;white-space:nowrap}.ghost-control{display:flex;align-items:center;gap:3px;font-size:10px}.status{height:28px;flex-shrink:0;font-size:10px;margin:0;padding:5px 22px;background:#eef0e6;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.settings{overflow:auto;overscroll-behavior:contain;min-width:0;padding:20px 22px 28px;background:var(--panel);border-left:1px solid var(--line);scrollbar-width:thin;scrollbar-color:#bdcbbb transparent}.panel-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.panel-heading>span{font:9px ui-monospace,monospace;letter-spacing:1.5px}.panel-heading button{font-size:10px;border:0;padding:3px}.settings-group{border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:16px}.settings h2{font-size:12px;font-weight:600;margin:0 0 12px;display:flex;justify-content:space-between;align-items:center}.roster-tabs{display:flex;gap:4px;margin-bottom:8px}.roster-tabs button{flex:1;padding:6px;font-size:10px;border:0;border-bottom:2px solid transparent;border-radius:0}.roster-tabs button[aria-selected=true]{border-color:var(--teal);color:var(--teal)}.roster{display:flex;overflow-x:auto;gap:6px;padding:4px 1px 10px;scrollbar-width:thin;scrollbar-color:#b8c8b9 transparent}.roster button{flex-shrink:0;max-width:155px;padding:7px 10px;font-size:11px;white-space:nowrap;border-radius:18px}.roster button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}.subject-meta{font:10px ui-monospace,monospace;margin:8px 0 5px;color:var(--muted)}.speed-source{font-size:9px;color:var(--muted);margin:0}.speed-source button{font:inherit;text-decoration:underline;border:0;padding:0}.control{padding:0 0 13px}.control-head{display:flex;align-items:center;gap:5px;margin-bottom:4px}.control-head label,.field-label{font-size:11px;font-weight:600}.control-head .numeric{margin-left:auto;display:flex;align-items:center;gap:4px}.numeric>span{font:9px ui-monospace,monospace;min-width:22px}.badge{font:600 7px ui-monospace,monospace;letter-spacing:.3px;border:1px solid currentColor;border-radius:2px;padding:3px 4px;white-space:nowrap;display:inline-block}.measured{background:#e2eddf;color:#446a46}.derived{background:#e4edf0;color:#4b7280}.assumed{background:#f3e9d5;color:#846128}.segmented{display:flex;border:1px solid var(--line);border-radius:4px;padding:3px;margin-bottom:15px}.segmented label{flex:1;position:relative;text-align:center;font-size:10px;cursor:pointer}.segmented input{position:absolute;opacity:0;inset:0}.segmented span{display:block;padding:6px 2px;border-radius:3px}.segmented input:checked+span{background:#dfe9dd;color:#265d51;font-weight:600}.segmented input:focus-visible+span{outline:3px solid var(--orange)}.toggle-row{display:flex;align-items:center;justify-content:space-between;margin:10px 0;font-size:11px}.toggle-row>span{display:flex;gap:6px;align-items:center}.toggle-row>input{width:16px;height:16px}.hint{font-size:10px;line-height:1.5;color:var(--muted);margin:7px 0 0}.field-label{display:flex;gap:6px;margin-bottom:7px}#gravity{width:100%;font-size:12px;margin-bottom:15px}.send{background:var(--orange);border:0;color:white;width:100%;display:flex;justify-content:space-between;font:600 13px 'Space Grotesk',sans-serif;letter-spacing:1.5px;padding:12px}.send:hover{background:#b84f2b}.subject-tuning,.personal{margin-top:20px;padding-top:14px;border-top:1px solid var(--line);font-size:11px}.subject-tuning summary,.personal summary{font-weight:600}.tune-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:10px}.mini-results{display:flex;flex-direction:column;gap:6px;font-size:10px;color:var(--muted);margin-top:20px}.mini-results span{display:flex;justify-content:space-between}.mini-results b{color:var(--ink);font-family:monospace}.education{font-size:9px;color:var(--muted);margin:20px 0 0}.drawer{position:fixed;inset:56px 350px 0 auto;margin:0;width:min(800px,calc(100vw - 350px));height:calc(100dvh - 56px);max-height:none;max-width:none;border:0;border-left:1px solid var(--line);padding:0;background:var(--panel);color:var(--ink);box-shadow:-15px 0 50px #193e4020}.drawer::backdrop{background:#143e3f33}.drawer-head{height:65px;position:sticky;top:0;background:var(--panel);z-index:2;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 25px}.drawer-head h1{font:500 23px 'Space Grotesk',sans-serif;margin:0;letter-spacing:-.7px}.drawer-head button{border:0;font-size:25px;padding:0 5px}#drawer-body{padding:22px 25px;font-size:12px;overflow-wrap:anywhere}#drawer-body>p{line-height:1.7}.badge-key{display:flex;gap:8px;margin:15px 0}.table-wrap{overflow:auto;margin:20px 0}table{border-collapse:collapse;width:100%;font-size:10px;text-align:left;min-width:580px}th,td{border-bottom:1px solid var(--line);padding:10px 8px;vertical-align:top}th{font-size:9px;font-family:monospace}td:first-child{font-weight:600}td a{display:block;margin-top:5px}td:last-child{max-width:220px;color:var(--muted)}#source-audit p{font-size:11px;line-height:1.7}#references{display:grid;gap:16px}#references figure{margin:0}#references img{display:block;width:100%;max-height:300px;object-fit:cover}#references figcaption{font-size:12px;padding-top:7px}#references small{display:block;font-size:9px;color:var(--muted)}#references a{text-decoration:none}.math-grid{display:grid;gap:22px}.math-grid h3{font-size:13px;margin:0 0 10px;color:#437364}.math-grid p,.math-grid li{font-size:11px;line-height:1.7}.equation{font:11px/1.8 ui-monospace,monospace;white-space:pre-wrap;background:#e8eee3;padding:14px;border-left:2px solid var(--teal);overflow-wrap:anywhere}.math-grid ul{padding-left:18px}.feedback{position:absolute;left:50%;top:36%;transform:translate(-50%,-50%);pointer-events:none;font:600 40px 'Space Grotesk',sans-serif;letter-spacing:-2px;color:var(--teal);text-shadow:0 2px #fff8}.toast{position:absolute;bottom:110px;left:25px;max-width:300px;background:var(--ink);color:white;padding:9px 14px;border-radius:3px;font-size:11px;opacity:0;transition:opacity .2s;pointer-events:none}.toast.visible{opacity:1}#personal-bests{margin-top:10px}#personal-bests table{min-width:0}.draw-note{font-size:10px;color:var(--muted)}
@media(max-width:1050px) and (min-width:760px){.workspace{grid-template-columns:minmax(0,1fr) 310px}.settings{padding:17px}.drawer{right:310px;width:calc(100vw - 310px)}.topbar{gap:15px}.wordmark{font-size:19px}.transport{gap:6px;padding:10px}.transport button{padding:8px}.transport #sound{font-size:0}.transport #sound:after{content:'♪';font-size:14px}.transport #reset span{display:none}.live-stats{gap:22px}.locator{width:112px}.locator svg{width:100px;height:56px}.scale-note{display:none}}
@media(max-width:759px){.topbar{height:56px;padding:0 12px;gap:9px;flex-wrap:wrap;position:relative}.wordmark{font-size:17px}.verdict{font-size:8px;padding:4px 6px;margin-left:auto}.topbar nav{gap:0;position:absolute;top:32px;right:7px}.topbar nav button{font-size:8px;padding:3px 6px}.workspace{display:flex;flex-direction:column;height:calc(100dvh - 56px)}.lab{height:calc(45dvh + 60px);flex-shrink:0}.canvas-wrap{height:45dvh;flex:auto}.settings{flex:1;border-left:0;border-top:1px solid var(--line);padding:16px 18px;min-height:0}.transport{height:42px;padding:5px 8px;gap:5px}.transport button{padding:6px 7px;font-size:9px}.transport .play{min-width:58px}.transport #reset span{display:none}.transport #sound{font-size:0;padding:6px}.transport #sound:after{content:'♪';font-size:12px}.timeline{gap:4px}.timeline output{font-size:8px}.ghost-control{font-size:8px;gap:0}.ghost-control input{width:12px;height:12px}.status{height:18px;padding:2px 10px;font-size:8px}.canvas-heading{left:15px;top:15px}.canvas-heading>span{font-size:9px;letter-spacing:.7px}.canvas-heading b{display:none}.canvas-heading small{font-size:6px;letter-spacing:0}.locator{right:10px;top:10px;width:100px;padding:3px}.locator svg{width:94px;height:52px}.locator>span{font-size:5px}.live-stats{left:15px;bottom:29px;gap:22px}.live-stats small{font-size:6px;letter-spacing:.5px}.live-stats strong{font-size:20px}.canvas-legend{bottom:10px;left:15px;right:15px;gap:12px;font-size:7px}.scale-note{display:none}.key:before{width:10px}.drawer{inset:0;width:100vw;height:100dvh}.drawer-head{height:56px;padding:0 18px}.drawer-head h1{font-size:21px}#drawer-body{padding:18px}.toast{left:15px;bottom:75px;font-size:10px}.feedback{font-size:32px}.panel-heading{margin-bottom:13px}.roster button{font-size:11px}.control-head label{font-size:12px}.control{padding-bottom:13px}.math-grid p,.math-grid li{font-size:11px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
/* Polish keeps the original shell, palette and typography. */
.canvas-wrap{background:#dce7e4}.canvas-wrap>#scene{position:absolute;top:145px;bottom:68px;width:100%;height:calc(100% - 213px)}.canvas-heading{top:18px}.canvas-heading small{font-size:10px;letter-spacing:0}.elevation-band{position:absolute;left:230px;right:195px;top:20px;height:80px;overflow:hidden}.elevation-band>span{font-size:9px;color:#5e786e}.elevation-band svg{display:block;width:100%;height:55px}.locator{width:164px;right:18px;top:18px}.locator svg{width:150px;height:83px}.locator>span{font-size:8px}.live-stats{top:70px;bottom:auto;left:25px;gap:22px;background:#e9efdfcc;padding:8px 12px;border-radius:3px}.live-stats strong{font-size:23px}.live-stats small{font-size:8px;letter-spacing:.3px}.live-stats #contact-detail{font-size:9px;display:block;max-width:195px}.live-stats>div:nth-child(2){display:none}.scale-bar{position:absolute;left:25px;bottom:37px;font:9px ui-monospace,monospace;color:#244c46}.scale-bar>div{border:solid #244c46;border-width:0 1px 2px;height:5px;display:inline-block;margin-right:8px}.scale-bar small{display:block;font-size:7px;letter-spacing:.7px;margin-top:4px}.canvas-legend{bottom:11px}.feedback{top:auto;bottom:45px;transform:translateX(-50%);font-size:clamp(22px,4vw,56px);white-space:nowrap;max-width:90%}.dashed:before{border-color:#9bad98;border-top-style:dotted;opacity:.4}.orange:before{border-color:#9b431f;border-top-style:dashed}.run-up-note{margin:-8px 0 17px}.plain-section{margin-bottom:25px}.plain-section h2{font:500 21px 'Space Grotesk',sans-serif;margin-bottom:8px}.plain-section p{line-height:1.7}.plain-section button{font-size:11px}#speed{background:linear-gradient(to right,transparent var(--band-start,0%),#9fba9d var(--band-start,0%),#9fba9d var(--band-end,0%),transparent var(--band-end,0%));border-radius:8px}.skyline-label{position:absolute;right:25px;top:130px;font-size:10px;text-align:right;max-width:170px;line-height:1.35;color:#4b6e68;pointer-events:none}.skyline-label small{display:block;font-size:8px}.status{white-space:normal;line-height:1.3}.settings{scroll-behavior:auto}.topbar nav{gap:3px}.topbar nav button{padding-inline:7px}
@media(max-width:1050px) and (min-width:760px){.topbar{gap:8px;padding-inline:14px}.topbar nav button{font-size:10px}.elevation-band{left:200px;right:170px}.live-stats{gap:16px}.locator{width:142px}.locator svg{width:128px;height:70px}}
@media(max-width:759px){.topbar nav button{font-size:8px;padding:3px 5px}.canvas-wrap>#scene{top:128px;bottom:47px;height:calc(100% - 175px)}.canvas-heading{top:10px;left:12px}.canvas-heading small{font-size:8px}.locator{width:108px;top:8px;right:8px}.locator svg{width:98px;height:54px}.locator>span{font-size:5px}.live-stats{top:43px;left:12px;gap:10px;padding:4px 6px;max-width:230px}.live-stats strong{font-size:16px}.live-stats small{font-size:6px}.live-stats #contact-detail{max-width:100px;font-size:6px}.elevation-band{top:88px;height:40px;left:12px;right:12px}.elevation-band>span{font-size:7px}.elevation-band svg{height:25px}.skyline-label{top:130px;right:10px;font-size:7px;max-width:120px}.skyline-label small{font-size:6px}.scale-bar{left:12px;bottom:27px;font-size:7px}.scale-bar small{font-size:5px}.canvas-legend{left:12px;bottom:7px;font-size:6px;gap:10px}.feedback{font-size:25px;bottom:50px}.status{font-size:7px}.run-up-note{font-size:10px}.canvas-heading b{display:none}}
.elevation-band{left:350px}.speed-range{display:block;margin-top:5px;font-size:8px}.speed-source{line-height:1.5}.speed-source button:not(.badge){text-align:left}.canvas-legend{background:#dce7e4}.canvas-heading,.skyline-label{max-width:calc(100% - 40px)}
@media(max-width:1050px) and (min-width:760px){.elevation-band{left:320px;right:170px}}
@media(max-width:759px){.elevation-band{left:12px;right:12px}.live-stats{max-width:235px}.skyline-label{max-width:120px}}

/* Fixed-level section polish. Same SVG transform drives the 10 m rule. */
.live-stats{gap:20px;padding:8px 10px}.live-stats strong{font-size:22px}.live-stats small{font-size:8px}.live-stats #contact-detail{font-size:9px}
#scale-line{border-top:1px solid var(--ink);border-bottom:0;height:6px;position:relative;background:repeating-linear-gradient(90deg,var(--ink) 0 1px,transparent 1px 20%);background-size:100% 4px;background-repeat:no-repeat}#scale-line:after{content:'';position:absolute;right:0;top:-1px;height:6px;border-right:1px solid var(--ink)}
@media(max-width:759px){.live-stats{padding:5px 7px;gap:10px}.live-stats strong{font-size:17px}.live-stats small{font-size:7px}}