:root{font-family:system-ui,-apple-system,'Segoe UI',sans-serif;color:oklch(.25 .025 247);background:white;font-size:16px;--blue:oklch(.48 .15 247);--line:oklch(.87 .012 247);--surface:oklch(.967 .006 247)}
*{box-sizing:border-box}body{margin:0}[hidden]{display:none!important}header{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid var(--line)}header strong{font-size:21px}#connection{font-size:12px;color:oklch(.43 .025 247)}main{max-width:950px;margin:auto;padding:18px}.heading{display:flex;align-items:center;justify-content:space-between;gap:12px}h1{font-size:20px;margin:0 0 18px}#page{font-size:13px;color:oklch(.43 .025 247)}
button{font:inherit;min-height:44px;border:1px solid var(--line);border-radius:7px;background:white;color:inherit;padding:8px 12px;cursor:pointer}button.selected{color:white;background:var(--blue);border-color:var(--blue)}button:focus-visible{outline:3px solid var(--blue);outline-offset:2px}button:disabled{opacity:.45;cursor:default}.tools{display:flex;flex-wrap:wrap;gap:7px;margin:10px 0}.tools button{flex:1;white-space:nowrap;font-size:14px}
#fullscreenBar{display:flex;gap:6px;margin-bottom:8px}#fullscreenBar button{font-size:12px}#exitFullscreen,#menuToggle{display:none}#toolDrawer{min-width:0}#padMenu{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px;align-items:center}#padMenu label{font-size:13px}#padMenu button{font-size:13px;padding:6px 10px}#padMenu input[type=range]{width:75px}#padMenu input[type=color]{width:36px;height:36px;padding:0;border:0}#shapeTool{font:inherit;padding:8px;max-width:165px}#toolPreview{width:100px;height:28px}input[type=range]{accent-color:var(--blue)}
#pad{position:relative;touch-action:none;user-select:none;-webkit-user-select:none;aspect-ratio:16/9;min-height:180px;border:2px solid var(--line);border-radius:8px;background:var(--surface);overflow:hidden}#pad.active{border-color:var(--blue)}#padPreview{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}#hint{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:oklch(.43 .025 247);pointer-events:none;font-size:16px;text-align:center;padding:18px}#hint small{font-size:12px}#cursor{position:absolute;width:16px;height:16px;transform:translate(-50%,-50%);background:var(--blue);border:2px solid white;border-radius:50%;pointer-events:none;z-index:2}#cursor.brush{background:transparent;border:1px solid #162636;box-shadow:0 0 0 1px white}#cursor.bucket{background:transparent;border:0;border-radius:0;font-size:32px;line-height:36px;transform:translate(-50%,-100%)}#cursor.bucket:after{content:'+';position:absolute;bottom:-10px;left:12px;font-size:18px;line-height:18px;font-weight:700}#gestureStatus{position:absolute;z-index:1;left:8px;right:8px;bottom:4px;margin:0;padding:4px;background:white;pointer-events:none;font-size:12px;color:var(--blue)}
#quickTools,#phoneSelection,#routeCompact{display:none}#controls[data-tool=select] #phoneSelection{display:flex;gap:6px;align-items:center;flex-wrap:wrap;padding:4px 0}#phoneSelection button,#quickTools button{font-size:12px;min-height:44px}#connectionRoute,#routeCompact{font-size:12px;font-weight:600;color:#00568c;overflow-wrap:anywhere}#latency{font-size:12px;color:oklch(.43 .025 247)}#latency.slow{color:oklch(.45 .16 25)}
.navigation{display:flex;gap:8px;margin-top:14px}.navigation button{flex:1;font-size:14px}.note{font-size:12px;line-height:1.6;color:oklch(.43 .025 247)}#error{font-size:14px;line-height:1.5;color:oklch(.48 .17 25);min-height:22px}details{margin-top:16px;border-top:1px solid var(--line);padding-top:12px}summary{cursor:pointer;font-size:14px;margin-bottom:14px}.text-label{display:flex;flex-direction:column;gap:8px;font-size:14px;margin-bottom:10px}textarea{font:inherit;resize:vertical;border:1px solid var(--line);border-radius:6px;padding:10px;width:100%}
#login{max-width:420px;margin:20px auto}#login p{line-height:1.6}#login label{display:flex;flex-direction:column;gap:8px;margin:18px 0}#login input{font:inherit;padding:12px;width:100%;border:1px solid var(--line);border-radius:6px}#pairButton{background:var(--blue);color:white;width:100%}#pairStatus{font-weight:600;line-height:1.6}
#keyboardPanel{position:fixed;z-index:30;left:8px;right:8px;bottom:8px;background:white;border:1px solid var(--line);padding:12px;border-radius:8px;max-height:85dvh;overflow:auto}#keyboardPanel>div{display:flex;gap:6px;flex-wrap:wrap}#keyboardPanel button{font-size:12px;padding:6px}#keyboardLabel{display:block;margin-bottom:6px;font-weight:600}
/* Fullscreen is a flow layout. No controls cover the touch surface. */
#controls.expanded{position:fixed;inset:0;height:100%;height:100dvh;max-width:none;background:white;z-index:20;display:flex;flex-direction:column;gap:6px;padding:max(6px,env(safe-area-inset-top)) max(6px,env(safe-area-inset-right)) max(6px,env(safe-area-inset-bottom)) max(6px,env(safe-area-inset-left));overflow:hidden}
#controls.expanded>.heading,#controls.expanded>.navigation,#controls.expanded>details{display:none}#controls.expanded #fullscreenBar{flex:none;margin:0;display:flex}#controls.expanded #fullscreenBar button{display:block;flex:1;min-width:0;white-space:normal;line-height:1.2;min-height:44px}#controls.expanded #toolDrawer{flex:0 1 auto;max-height:38%;max-height:38dvh;min-height:0;overflow:auto;overscroll-behavior:contain;border-bottom:1px solid var(--line);padding:0 4px 4px}#controls.expanded #expandPad{display:none}#controls.expanded #pad{flex:1 1 0;min-height:70px;aspect-ratio:auto;width:100%;height:auto;border-radius:6px}#controls.expanded #hint{font-size:14px}#controls.expanded #gestureStatus{font-size:11px}
#controls.expanded.minimized #toolDrawer{display:none}#controls.expanded.minimized #routeCompact{display:block;flex:none;padding:2px 4px}#controls.expanded.minimized #quickTools{display:flex;flex:none;gap:6px}#quickTools button{flex:1}#controls:fullscreen{width:100%;height:100%}
@media(orientation:landscape) and (max-height:600px){header{padding:8px 18px}main{padding:10px 18px}#controls.expanded #toolDrawer{max-height:30dvh}.tools{margin:6px 0}#controls.expanded #pad{min-height:60px}}

#phoneBiology{margin:6px 0;padding:8px 0;border-top:1px solid #c2ced8}.bio-phone-tools{display:flex;flex-wrap:wrap;gap:6px}#phoneBiology select{max-width:100%;min-height:40px}#phoneBioStatus{width:100%;font-size:13px}#phoneBiology button[aria-pressed=true]{background:#dcecff;color:#123d5b}.remember{display:flex;align-items:center;gap:8px;font-size:15px}.remember input{width:22px;height:22px;min-height:0}
html,body{overscroll-behavior:none}button,#pad,.tools{-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation}#pad{touch-action:none}.ios-hint{background:#eaf3fb;border:1px solid #bcd6ee;border-radius:8px;padding:10px;font-size:15px}.ios body{padding-bottom:env(safe-area-inset-bottom)}
.shape-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(52px,1fr));gap:6px;width:100%;margin:4px 0}.shape-grid button{padding:4px;min-height:52px;display:flex;align-items:center;justify-content:center}.shape-grid canvas{width:40px;height:40px}.shape-grid button.selected{outline:2px solid #1f6fb2;background:#e8f1fb}
.upload-box{margin:8px 0}.upload-box button{width:100%;min-height:48px;font-weight:600}.upload-box p{margin:4px 0;font-size:14px}