:root{color-scheme:dark;--bg:#111715;--panel:#151c19;--ink:#e9eee8;--muted:#8c9a90;--line:#2a3530;--accent:#c4eaa8;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,select{font:inherit}button,a,input,select,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.4;cursor:wait}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button{color:inherit}header{height:80px;padding:0 4%;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:30px}.brand{text-decoration:none;color:var(--ink);letter-spacing:2px;font-size:15px;font-weight:650;display:flex;align-items:center;gap:9px}.brand>span:last-child{color:var(--muted);font-weight:400}.brand-symbol{font:italic 40px Georgia,serif;color:var(--accent);margin-right:8px}.local{display:flex;gap:9px;align-items:center;color:var(--muted);margin-left:auto;font-size:12px}.local i,.live-dot{display:inline-block;width:6px;height:6px;background:var(--accent);border-radius:50%}.local>#backend{margin-left:14px;font:10px var(--mono);padding:5px 8px;border:1px solid var(--line);color:var(--accent)}.text-button{background:none;border:0;padding:8px 0;text-align:left;font-size:12px}.text-button>span{float:right;margin-left:15px}main{max-width:1680px;margin:auto;padding:38px 4% 0}.page-heading{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:30px}.eyebrow{font:10px var(--mono);letter-spacing:1.6px;color:var(--muted);margin:0 0 15px}h1{font-size:clamp(32px,3.4vw,52px);line-height:1.05;font-weight:450;letter-spacing:-1.5px;margin:0}h1 em{font:italic 1.12em Georgia,serif;color:var(--accent)}.intro{color:var(--muted);font-size:13px;margin:0 0 5px;line-height:1.8}.steps{display:flex;border:1px solid var(--line);border-bottom:0}.steps button{display:flex;gap:12px;align-items:center;flex:1;padding:17px 22px;border:0;border-right:1px solid var(--line);background:transparent;color:var(--muted);font-size:12px;text-align:left}.steps button:last-child{border:0}.steps button>span{font:11px var(--mono);opacity:.7}.steps button>small{margin-left:auto;font:9px var(--mono);opacity:.7}.steps button.active{background:#202c22;color:var(--accent);box-shadow:inset 0 2px var(--accent)}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 310px;border:1px solid var(--line)}.canvas-panel{position:relative;min-width:0;background:#0c1310;display:flex;flex-direction:column}.canvas-heading{display:flex;justify-content:space-between;align-items:center;padding:22px 26px;position:absolute;top:0;left:0;right:0;z-index:1;font-size:12px;pointer-events:none}.canvas-heading>div{display:flex;align-items:center;gap:7px;font:9px var(--mono);letter-spacing:1.3px;color:var(--muted)}#canvas{display:block;width:100%;height:570px;cursor:default}.canvas-stats{position:absolute;bottom:78px;left:26px;right:26px;display:flex;gap:34px;pointer-events:none}.canvas-stats>div{display:flex;flex-direction:column}.canvas-stats span{font:8px var(--mono);letter-spacing:1.5px;color:var(--muted)}.canvas-stats strong{font:31px var(--mono);font-weight:400;margin-top:5px}.canvas-stats small{font-size:13px;color:var(--muted);margin-left:4px}.canvas-stats .stat-progress{margin-left:auto;text-align:right}.transport{display:flex;align-items:center;gap:15px;height:61px;border-top:1px solid var(--line);padding:0 23px}.transport>input{flex:1;min-width:40px}.play{background:var(--accent);color:#182319;border:0;border-radius:50%;width:30px;height:30px;font-size:12px;flex-shrink:0}.icon-button{border:0;background:transparent;font-size:20px;padding:3px 4px;color:var(--muted)}#time-label{font:10px var(--mono);white-space:nowrap;color:var(--muted)}.inspector{padding:25px 23px;background:var(--panel);border-left:1px solid var(--line)}h2{font-size:19px;letter-spacing:-.4px;font-weight:500;margin:0 0 22px}.inspector .eyebrow{font-size:9px;margin-bottom:10px}.range-label{display:flex;justify-content:space-between;align-items:center;font-size:12px;margin:17px 0 9px}.range-label output{font:13px var(--mono);color:var(--accent)}input[type=range]{width:100%;height:3px;accent-color:var(--accent);cursor:pointer;margin:8px 0 12px;appearance:none;background:var(--line);border-radius:5px}input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--accent);width:11px;height:11px;border-radius:50%}input[type=range]::-moz-range-thumb{background:var(--accent);width:11px;height:11px;border:0;border-radius:50%}.range-extents{display:flex;justify-content:space-between;font:9px var(--mono);color:var(--muted)}.tolerance-row{display:flex;justify-content:space-between;align-items:center;margin:21px 0 12px;font-size:12px}.tolerance-row>div{display:flex;align-items:center;border:1px solid var(--line);padding:5px 8px;gap:4px;font:12px var(--mono);color:var(--muted)}input[type=number]{background:transparent;border:0;color:var(--ink);width:50px;outline-offset:0}button.primary,button.secondary{padding:11px 14px;font-size:12px;border-radius:3px;text-align:left;transition:background .16s,transform .16s}.primary{background:var(--accent);color:#162312;border:1px solid var(--accent);font-weight:600}.primary:hover{background:#d5f7bc;transform:translateY(-1px)}.secondary{background:transparent;border:1px solid #52634e;color:var(--accent)}.secondary:hover{background:#253022}.primary>span,.secondary>span{float:right}.full{width:100%}.micro{color:var(--muted);font-size:10px;line-height:1.6;margin:10px 0}.divider{height:1px;background:var(--line);margin:19px 0}.label{display:block;font:9px var(--mono);letter-spacing:1px;color:var(--muted);margin-bottom:8px}select{width:100%;background:#19231d;color:var(--ink);border:1px solid var(--line);padding:10px 8px;border-radius:3px;font-size:11px}.check{display:flex;gap:8px;align-items:center;font-size:11px;color:#bac4bc;margin:13px 0;cursor:pointer}input[type=checkbox]{accent-color:var(--accent);margin:0;width:13px;height:13px}.muted{font-size:12px;color:var(--muted);line-height:1.7}.analysis-strip{display:grid;grid-template-columns:1.2fr 1.6fr .6fr;padding:32px 0;gap:35px;border-bottom:1px solid var(--line);align-items:center}.analysis-heading h2{font-size:21px;margin-bottom:8px}.analysis-heading p:last-child{font-size:11px;color:var(--muted);max-width:290px;margin:0}.analysis-heading .eyebrow{font-size:9px}.chart-wrap{min-width:0}#error-chart{width:100%;height:110px}.chart-axis{display:flex;justify-content:space-between;font:9px var(--mono);color:var(--muted)}.computation{border-left:1px solid var(--line);padding-left:28px;display:flex;flex-direction:column}.computation>span{font:9px var(--mono);color:var(--muted)}.computation strong{font:24px var(--mono);margin:7px 0}.computation>p{font-size:10px;color:var(--muted);margin:10px 0 0}.math{padding:22px 0;border-bottom:1px solid var(--line)}summary{display:flex;justify-content:space-between;cursor:pointer;font-size:13px;list-style:none}summary>span:last-child{font-size:11px;color:var(--muted)}.math-content{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding:26px 0;font-size:12px;color:var(--muted)}.math-content .equation{font:italic 25px Georgia,serif;color:var(--accent)}table{border-collapse:collapse;width:100%;font:11px var(--mono)}caption{text-align:left;margin-bottom:15px}th,td{text-align:right;padding:8px;border-bottom:1px solid var(--line);font-weight:400}th{color:var(--accent)}footer{display:flex;align-items:center;justify-content:space-between;padding:28px 0;color:var(--muted);font:9px var(--mono);letter-spacing:1px}footer p{letter-spacing:0;font:11px -apple-system,sans-serif}.canvas-empty{position:absolute;inset:70px 0 70px;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;background:#0c1310ef}.canvas-empty h2{font:italic 28px Georgia,serif;margin:15px 0 0}.canvas-empty p{color:var(--muted);font-size:12px}.canvas-empty .primary{width:190px;margin:14px}.upload-mark{font-size:36px;color:var(--accent)}.privacy-note{font-size:10px!important}#status{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);padding:12px 22px;background:#c4eaa8;color:#152311;border-radius:5px;z-index:10;max-width:90vw;font-size:12px;box-shadow:0 4px 25px #0005}.contour-list{max-height:245px;overflow:auto;margin:10px 0 20px;border-top:1px solid var(--line)}.contour-list label{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line);font-size:11px}.contour-list label>span{display:flex;align-items:center;gap:9px}.contour-list small{color:var(--muted);font:9px var(--mono)}.contour-actions{display:flex;justify-content:space-between}.contour-actions button{color:var(--accent);font-size:10px}dialog{background:var(--panel);color:var(--ink);border:1px solid var(--line);padding:35px;width:560px;max-width:90vw;font-size:13px;line-height:1.8}dialog::backdrop{background:#0009;backdrop-filter:blur(5px)}dialog .icon-button{float:right}dialog h2{margin-bottom:15px}dialog li{margin:14px 0}dialog p{color:var(--muted)}[hidden]{display:none!important}.dropping{outline:2px dashed var(--accent);outline-offset:-10px}.page-heading{animation:enter .5s ease both}.workspace{animation:enter .7s ease both}@keyframes enter{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media(min-width:1450px){#canvas{height:640px}.inspector{padding:29px}.workspace{grid-template-columns:minmax(0,1fr) 330px}}@media(max-width:1000px){header{padding:0 3%;gap:15px}.local>#backend{display:none}.intro{max-width:260px}.workspace{grid-template-columns:minmax(0,1fr) 280px}.inspector{padding:20px 18px}.steps button{padding:16px}.steps small{display:none}#canvas{height:565px}.analysis-strip{gap:20px}.analysis-heading h2{font-size:18px}.computation{padding-left:20px}}@media(max-width:720px){header{height:65px}.brand{font-size:12px;letter-spacing:1px}.brand-symbol{font-size:31px;margin:0}.local{font-size:9px}.local i{display:none}header>.text-button{display:none}main{padding:26px 4% 0}.page-heading{margin-bottom:25px}.intro{display:none}h1{font-size:38px}.eyebrow{font-size:9px}.steps button{font-size:10px;padding:14px 10px;gap:6px}.workspace{grid-template-columns:1fr}.inspector{border-left:0;border-top:1px solid var(--line);padding:24px}.canvas-heading{padding:18px}.canvas-heading>div{font-size:8px}#canvas{height:480px}.canvas-stats{left:18px;right:18px;gap:24px}.canvas-stats strong{font-size:25px}.transport{padding:0 16px;gap:12px}#time-label{font-size:9px}.analysis-strip{grid-template-columns:1fr;padding:26px 0;gap:20px}.computation{display:none}.analysis-heading p:last-child{max-width:none}.math-content{grid-template-columns:1fr;gap:20px}summary{gap:20px}summary>span:last-child{max-width:150px;font-size:10px;text-align:right}footer>span:last-child{display:none}.inspector h2{margin-bottom:17px}.canvas-empty h2{font-size:24px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
/* Keep transport and metrics anchored when the inspector is taller. */
#canvas{flex:1 1 auto}.transport{flex:0 0 61px}

.animation-plan{margin:17px 0;padding:14px 0;border-top:1px solid var(--line)}.animation-plan .micro{margin:6px 0;line-height:1.8}#plan-stops{font-family:var(--mono);color:var(--accent);overflow-wrap:anywhere}#stat-error{font-size:25px}#stat-phase{max-width:200px;line-height:1.6}@media(max-width:720px){#stat-error{font-size:20px}.canvas-stats{gap:16px}#stat-phase{max-width:135px;font-size:7px}}

/* Native language names stay visible at every breakpoint. */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.language-picker{flex:0 0 auto}.language-picker select{width:116px;font-size:12px;padding:9px 10px}
.steps button>.step-name{font:inherit;opacity:1;min-width:0;overflow-wrap:anywhere}
.primary>.button-label,.secondary>.button-label,.text-button>.button-label{float:none;margin-left:0}
.button-label{overflow-wrap:anywhere}.range-label>span{min-width:0;padding-right:12px}
.local-message{min-width:0}.steps button{min-width:0}.canvas-heading>span{min-width:0;max-width:65%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.intro{max-width:340px}.page-heading>div{min-width:0}.page-heading{gap:25px}
html:lang(hi) body,html:lang(ja) body,html:lang(zh) body{line-height:1.7}
html:lang(hi) .eyebrow,html:lang(hi) .label,html:lang(hi) .canvas-stats span,html:lang(ja) .eyebrow,html:lang(zh) .eyebrow{letter-spacing:.3px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
html:lang(hi) h1{line-height:1.3}html:lang(ja) h1,html:lang(zh) h1{line-height:1.25;letter-spacing:0}
html:lang(hi) .check,html:lang(hi) .micro{font-size:12px}dialog{max-height:85svh;overflow-y:auto}
@media(max-width:720px){.local{display:none}.language-picker{margin-left:auto}.language-picker select{width:110px}.steps button{padding:12px 8px;gap:5px}.steps .step-name{line-height:1.5}h1{font-size:34px}.canvas-stats span{letter-spacing:.7px}}
#export-dialog{width:620px;padding:26px;line-height:1.5}#export-dialog h2{margin-bottom:20px}#video-format{font-size:13px}.export-preview{height:220px;margin-top:18px;background:#0c1310;display:flex;align-items:center;justify-content:center;border:1px solid var(--line)}#export-preview{display:block;max-width:100%;max-height:100%;width:auto;height:auto}#video-specs{font-family:var(--mono);color:var(--accent)}#confirm-export{margin-top:8px;text-align:center}@media(max-width:720px){#export-dialog{padding:20px}.export-preview{height:230px}}

.export-settings{display:grid;grid-template-columns:minmax(0,1fr) 130px;align-items:end;gap:14px}.export-settings .label{margin:0 0 6px}#video-resolution{font-size:13px}.export-settings select{height:42px}@media(max-width:480px){.export-settings{grid-template-columns:1fr;gap:10px}}

.export-complete{margin-top:16px;padding-top:12px;border-top:1px solid var(--line)}.export-complete p{margin-top:0;color:var(--accent)}.coffee-button{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:11px 14px;border:1px solid #52634e;border-radius:3px;background:#202c22;color:var(--accent);font-size:12px;text-decoration:none;transition:background .16s}.coffee-button:hover{background:#30432b}
/* Themes use the same layout and semantic colors across UI and Canvas. */
body{background:var(--bg);color:var(--ink)}.canvas-panel,.canvas-empty{background:var(--canvas)}.steps button.active{background:color-mix(in srgb,var(--accent) 14%,var(--panel));color:var(--accent)}select{background:var(--panel);color:var(--ink);border-color:var(--line)}.primary,.play{color:var(--on-accent)}.primary:hover{background:color-mix(in srgb,var(--accent) 85%,var(--ink))}.secondary,.coffee-button{border-color:var(--line);color:var(--accent);background:var(--panel)}.secondary:hover,.coffee-button:hover{background:color-mix(in srgb,var(--accent) 12%,var(--panel))}.check{color:var(--ink)}#status{background:var(--accent);color:var(--on-accent)}.export-preview{background:var(--canvas)}.contour-list small{color:var(--muted)}.editor-tabs{display:flex;gap:8px;margin:12px 0 20px}.editor-tabs button{flex:1;text-align:center}.editor-tabs button[aria-pressed=true]{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,var(--panel))}#drawing-controls .secondary{margin:8px 0}#start-drawing{margin-top:12px}#appearance{white-space:nowrap}.palette-preview{display:flex;gap:24px;margin:25px 0 30px;font:12px var(--mono)}.palette-preview>span{display:flex;align-items:center;gap:8px}.swatch{display:inline-block;width:18px;height:18px;border-radius:50%}.swatch-x{background:var(--x)}.swatch-y{background:var(--y)}.swatch-accent{background:var(--accent)}html[data-style=studio] h1 em{font:inherit;color:var(--accent)}html[data-style=studio] .brand{letter-spacing:1px}html[data-style=blueprint] h1,html[data-style=blueprint] h1 em{font-family:var(--mono);font-style:normal;font-size:clamp(28px,3vw,46px);letter-spacing:-2px}html[data-style=blueprint] .primary,html[data-style=blueprint] select{border-radius:0}html[data-style=gallery] h1,html[data-style=gallery] h1 em{font-family:Georgia,serif;font-weight:400;letter-spacing:-1px}html[data-theme=light] dialog::backdrop{background:#14233466}#drawing-controls{padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:16px}@media(max-width:720px){#appearance{display:block;padding:8px;font-size:11px}header{gap:9px}.palette-preview{gap:16px}.language-picker select{width:93px}}@media(prefers-reduced-motion:reduce){.coffee-button{transition:none}}

.brand{gap:12px;letter-spacing:0;flex-shrink:0}.brand-icon{width:48px;height:48px;flex-shrink:0}.brand .brand-wordmark{display:flex;flex-direction:column;gap:2px;color:var(--ink);font-weight:400;line-height:1.2}.brand-wordmark strong{color:var(--ink);font-size:21px;letter-spacing:.1px;font-weight:650}.brand-wordmark>span{font-size:11px;letter-spacing:.35px;color:var(--muted)}@media(max-width:1000px){header{gap:18px}.local{display:none}.language-picker{margin-left:auto}.brand-icon{width:42px;height:42px}.brand-wordmark strong{font-size:20px}}@media(max-width:520px){header{height:auto;min-height:88px;flex-wrap:wrap;padding:10px 4%;gap:7px 14px}.brand{width:100%}.brand-icon{width:38px;height:38px}.brand-wordmark strong{font-size:18px}.brand-wordmark>span{font-size:10px}.language-picker{margin-left:auto}#appearance{padding:4px 0}footer{flex-wrap:wrap;gap:6px 14px}footer p{margin:0}}