:root{color-scheme:light;--bg:#f5f3ee;--paper:#fdfcf8;--ink:#243a3a;--muted:#777d73;--line:#dddfd5;--accent:#c75b33;--table:#17636c}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang TC","Noto Sans TC",sans-serif;font-size:14px;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button{cursor:pointer;color:inherit;border:0;background:transparent;border-radius:6px;transition:background-color .15s,color .15s,transform .12s}button:active{transform:scale(.98)}button:disabled{opacity:.45;cursor:wait}button:focus-visible,select:focus-visible,input:focus-visible,svg:focus-visible,summary:focus-visible{outline:3px solid #de835a;outline-offset:4px}button[hidden]{display:none}.masthead{height:86px;padding:0 4%;display:flex;align-items:center;gap:30px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px}.brand-mark{font-size:34px;color:var(--accent)}.brand strong{font-size:18px;letter-spacing:2px}.english{display:block;font:9px ui-monospace,monospace;letter-spacing:3px;margin-top:5px}.edition{margin-left:auto;color:var(--muted);font-size:12px}.edition span{padding:0 12px;color:#bbb}.edition b{font:10px ui-monospace,monospace;border:1px solid var(--line);padding:4px 6px;margin-left:10px;border-radius:3px}.quiet{font-size:12px;padding:10px 12px}.masthead>.quiet{border-left:1px solid var(--line);border-radius:0}main{max-width:1560px;margin:auto;padding:34px 4% 0}.intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.eyebrow{font:10px ui-monospace,monospace;letter-spacing:2px;color:var(--muted);margin:0 0 12px}h1{font-size:clamp(23px,2.4vw,34px);font-weight:600;letter-spacing:1px;margin:0 0 12px}.intro p:not(.eyebrow){color:var(--muted);margin:0;font-size:13px}.model-badge{font-size:11px;color:var(--muted);display:flex;align-items:center;gap:8px}.model-badge span{width:6px;height:6px;background:#478876;border-radius:50%}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:24px;align-items:start}.table-panel{background:var(--paper);border:1px solid var(--line);border-radius:10px;overflow:hidden}.table-toolbar{min-height:62px;display:flex;align-items:center;gap:12px;padding:12px 20px;border-bottom:1px solid var(--line)}.mode-switch{display:flex;background:#edeee7;padding:3px;border-radius:6px;flex-shrink:0}.mode-switch button{padding:8px 14px;font-size:12px;color:var(--muted)}.mode-switch .active{background:var(--paper);color:var(--ink);box-shadow:0 1px 4px #182b2b12}.table-toolbar>span{margin-left:auto;font:10px ui-monospace,monospace;color:var(--muted);white-space:nowrap}.table-wrap{padding:14px 12px 0;background:#efeee7}#table{display:block;width:100%;height:auto;touch-action:none;user-select:none;-webkit-user-select:none}#table[data-mode=aim]{cursor:crosshair}#table .ball-hit{cursor:grab}#table .ball-hit:active{cursor:grabbing}#table text{font-family:-apple-system,"PingFang TC",sans-serif}#table .path{fill:none;stroke-linejoin:round;stroke-linecap:round;pointer-events:none}#table .endpoint-label{font-size:12px;fill:#fff;paint-order:stroke;stroke:#14505a;stroke-width:3px}.table-under{display:flex;gap:12px;justify-content:space-between;align-items:center;padding:10px 22px;background:#efeee7}.table-under p{margin:0;font-size:11px;color:#656e65;line-height:1.6}.legend{display:flex;gap:12px;flex-shrink:0;font-size:10px;color:#656e65}.legend span{display:flex;align-items:center;gap:5px}.legend i{width:9px;height:9px;border-radius:50%;display:inline-block}.legend .white{background:#fff;border:1px solid #b3b8ae}.legend .amber{background:#dda947}.legend .endpoint{border:1px solid #697669;background:transparent}.playback{display:flex;align-items:center;gap:10px;padding:18px 22px 8px}.primary{background:var(--ink);color:#fff;padding:12px 22px;font-size:13px;font-weight:600}.secondary{border:1px solid #cdd3c7;background:var(--paper);padding:10px 13px;font-size:12px}.speed-label{font-size:10px;display:flex;align-items:center;gap:8px;color:var(--muted);margin-left:auto}select{border:1px solid var(--line);background:var(--paper);border-radius:5px;padding:8px;color:var(--ink);font-size:12px}#clock{font:10px ui-monospace,monospace;white-space:nowrap;color:var(--muted);min-width:86px;text-align:right}input[type=range]{accent-color:var(--ink);width:100%;height:20px;cursor:pointer}.timeline{display:block;margin:3px 22px 17px;width:calc(100% - 44px)!important;height:12px!important}.result-strip{display:grid;grid-template-columns:1fr 1fr .7fr 1.3fr;border-top:1px solid var(--line);padding:17px 22px 10px;gap:14px}.result-strip>div+div{border-left:1px solid var(--line);padding-left:14px}.result-strip span{display:block;font-size:10px;color:var(--muted);margin-bottom:7px}.result-strip strong{font-size:13px;font-weight:500;line-height:1.5;font-variant-numeric:tabular-nums}.status{font-size:10px;line-height:1.6;color:var(--muted);margin:5px 22px 16px}.status.error{color:#b0442f}.controls{background:var(--paper);border:1px solid var(--line);border-radius:10px;overflow:hidden}.control-block{padding:20px;border-bottom:1px solid var(--line)}.section-label{display:flex;align-items:center;gap:9px;margin-bottom:14px}.section-label>span{color:#99a093;font:10px ui-monospace,monospace}h2{font-size:14px;font-weight:600;margin:0}.section-label output{margin-left:auto;font:13px ui-monospace,monospace;font-variant-numeric:tabular-nums}.fine-row{display:flex;justify-content:space-between;gap:3px;margin-top:7px;align-items:center}.fine-row button{border:1px solid var(--line);font:10px ui-monospace,monospace;padding:7px 4px;min-width:29px}.fine-row span{font-size:8px;color:var(--muted);text-align:center}.range-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:10px;margin-top:4px}.text-button{color:var(--accent);font-size:11px;padding:6px 0}.section-label .text-button{margin-left:auto}.tip-row{display:flex;align-items:center;gap:14px}#tip{width:164px;height:164px;flex-shrink:0;touch-action:none;cursor:crosshair}#tip text{font-size:11px;fill:#858a7f;text-anchor:middle}.tip-info strong{font-size:15px;font-weight:500}.tip-info p{font-size:11px;line-height:1.7;color:var(--muted);margin:9px 0}.tip-info output{font:10px/1.8 ui-monospace,monospace;color:var(--muted)}.tip-presets{display:flex;gap:5px;margin-top:12px}.tip-presets button{border:1px solid var(--line);padding:7px 0;flex:1;font-size:11px}.tip-presets .active{background:#e8ece3;border-color:#9da990}.micro{color:var(--muted);font-size:10px;line-height:1.65;margin:10px 0 0}.compare-block{padding:20px;background:#eeeee5}.compare-block h2{font-size:13px}.compare-block>p:not(.micro){font-size:11px;line-height:1.7;color:var(--muted);margin:8px 0 14px}.compare-block>div{display:flex;gap:20px;align-items:center}.practice{display:flex;gap:32px;align-items:center;padding:28px 0}.practice>div:first-child{flex-shrink:0}.practice .eyebrow{font-size:9px;letter-spacing:1.4px;margin-bottom:8px}.preset-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;flex:1}.preset{padding:15px 16px;border:1px solid var(--line);text-align:left;position:relative;background:transparent}.preset>span{position:absolute;right:14px;top:16px;font:10px ui-monospace,monospace;color:#aaa}.preset strong{display:block;font-size:12px;font-weight:500;margin-bottom:6px}.preset small{display:block;font-size:10px;color:var(--muted)}.preset.active{background:var(--paper);border-color:#a4b0a0}.preset.active>span{color:var(--accent)}footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;padding:18px 0 24px;color:var(--muted);font-size:10px}dialog{border:1px solid var(--line);border-radius:12px;padding:28px;background:var(--paper);color:var(--ink);max-width:640px;width:calc(100% - 32px);max-height:85dvh;box-shadow:0 20px 80px #10272b26}dialog::backdrop{background:#142d2e77}.dialog-head{display:flex;justify-content:space-between;align-items:center}dialog h2{font-size:24px;margin:12px 0 20px}dialog h3{font-size:15px;margin-top:24px}dialog p,dialog li{font-size:13px;line-height:1.9}dialog li{margin:8px 0}dialog ul{padding-left:20px}dialog a{color:var(--accent)}dialog summary{cursor:pointer;font-size:12px}dialog pre{font:11px/1.8 ui-monospace,monospace;white-space:pre-wrap;overflow-wrap:anywhere;background:#edeee6;padding:12px;border-radius:5px}.sources{font-size:11px!important}@media(hover:hover) and (pointer:fine){button:not(:disabled):hover{background:#e4e8dd}.primary:not(:disabled):hover{background:#34534f}.text-button:hover{background:transparent;color:#9e3c1c}}
@media(min-width:1500px){.workspace{grid-template-columns:minmax(0,1fr) 330px}.control-block{padding:24px}.compare-block{padding:24px}.tip-row{gap:24px}}
@media(max-width:1100px){.workspace{grid-template-columns:minmax(0,1fr) 280px;gap:16px}.control-block,.compare-block{padding:17px}#tip{width:145px;height:145px}.table-toolbar{padding:10px 14px;gap:4px}.table-toolbar>span{display:none}.table-under{display:block;padding:9px 16px}.legend{margin-top:7px}.playback{padding:15px 16px 8px;flex-wrap:wrap}.speed-label{margin-left:0}.result-strip{padding:15px 16px 10px;grid-template-columns:1fr 1fr}.result-strip>div:nth-child(3){border:0;padding:0}.result-strip strong{font-size:12px}.status{margin-left:16px}.fine-row span{max-width:65px;line-height:1.6}.practice{gap:20px}.preset small{font-size:9px}.preset{padding:13px 10px}.preset>span{right:8px}}
@media(max-width:820px){.masthead{height:72px;padding:0 20px;gap:8px}.brand strong{font-size:16px}.edition{display:none}.masthead>.quiet{margin-left:auto;border:0;padding:8px 0;font-size:10px}main{padding:24px 16px 0}.intro{margin-bottom:22px}.intro .eyebrow{font-size:8px;letter-spacing:1.4px}.intro h1{font-size:24px}.intro p:not(.eyebrow){font-size:11px}.model-badge{display:none}.workspace{grid-template-columns:1fr}.table-wrap{padding:4px 2px 0}.table-toolbar{min-height:56px}.controls{display:grid;grid-template-columns:1fr 1fr}.control-block:nth-child(1),.tip-block{border-right:1px solid var(--line)}.control-block:nth-child(2){border-bottom:1px solid var(--line)}.tip-block{border-bottom:0}.compare-block{background:var(--paper);display:flex;flex-direction:column;justify-content:center}#tip{width:135px;height:135px}.tip-row{gap:8px}.tip-info output{font-size:9px}.result-strip{grid-template-columns:1fr 1fr 1fr 1.25fr}.result-strip>div:nth-child(3){border-left:1px solid var(--line);padding-left:14px}.practice{display:block;padding:24px 0}.preset-list{margin-top:15px}.practice .eyebrow{margin-bottom:5px}footer{gap:20px;line-height:1.7}}
@media(max-width:520px){.intro h1{font-size:22px}.table-toolbar>.quiet{margin-left:auto;font-size:10px;padding:8px 3px}.mode-switch button{padding:7px 10px;font-size:11px}.playback{gap:7px}.primary{padding:11px 16px;font-size:12px}.secondary{padding:9px 10px;font-size:11px}.speed-label{margin-left:auto;font-size:0;gap:0}.speed-label select{font-size:11px;padding:6px;max-width:95px}#clock{width:100%;font-size:10px;text-align:right}.result-strip{grid-template-columns:1fr 1fr;gap:14px}.result-strip>div:nth-child(3){border:0;padding:0}.controls{grid-template-columns:1fr}.control-block:nth-child(1),.tip-block{border-right:0}.tip-block{border-bottom:1px solid var(--line)}.tip-row{justify-content:center;gap:24px}#tip{width:164px;height:164px}.tip-info output{font-size:11px}.compare-block{background:#eeeee5}.fine-row span{max-width:none}.preset-list{gap:7px}.preset{padding:12px 9px;min-height:86px}.preset>span{position:static;display:block;margin-bottom:8px;font-size:9px}.preset strong{font-size:11px}.preset small{font-size:9px;line-height:1.6}footer{display:block}footer span{display:block;margin-bottom:5px}}
/* Compact desktop workspace keeps the full table and playback above the fold. */
@media(min-width:821px) and (max-height:850px){.masthead{height:58px}main{padding-top:17px}.intro{margin-bottom:17px}.intro h1{font-size:23px;margin-bottom:7px}.intro .eyebrow{margin-bottom:7px;font-size:8px}.intro p:not(.eyebrow){font-size:11px}.table-toolbar{min-height:48px;padding-top:6px;padding-bottom:6px}.table-wrap{padding-top:5px}#table{max-height:calc(100dvh - 340px);min-height:245px}.table-under{padding-top:7px;padding-bottom:7px}.playback{padding-top:12px;padding-bottom:6px}.timeline{margin-bottom:10px}.result-strip{padding-top:12px}.control-block{padding:13px 18px}.section-label{margin-bottom:9px}.tip-block .tip-row{gap:12px}#tip{width:135px;height:135px}.tip-presets{margin-top:7px}.compare-block{padding:14px 18px}.compare-block>p:not(.micro){margin:6px 0 10px}.practice{padding:20px 0}}
@media(prefers-reduced-motion:reduce){button{transition:none}button:active{transform:none}}
/* Direct cue rotation: keep the grip responsive, with no easing or inertia. */
.table-toolbar{flex-wrap:wrap}
.ball-tools,#target-list{display:flex;align-items:center;gap:5px}
.ball-tools{margin-left:auto;flex-wrap:wrap}
.target-chip{width:28px;height:28px;border-radius:50%;background:var(--ball-color);color:white;font-size:12px;font-weight:600;border:2px solid transparent}
.target-chip[aria-pressed=true]{outline:2px solid var(--ink);outline-offset:2px}
.ball-tools .target-chip:hover{background:var(--ball-color)}
.ball-action{font-size:11px;padding:7px 9px;border:1px solid var(--line)}
.ball-action:disabled{cursor:default}
#ball-count{font:10px ui-monospace,monospace;color:var(--muted);padding-left:3px}
#object-result .object-stop{display:flex;align-items:center;gap:5px;margin:0 0 3px;font-size:11px;color:var(--ink);white-space:nowrap}
.object-stop i{display:inline-flex;align-items:center;justify-content:center;font:9px ui-monospace,monospace;width:15px;height:15px;color:#fff;border-radius:50%;flex-shrink:0}
.preset-list{grid-template-columns:repeat(4,1fr)}
@media(max-width:1100px){.ball-tools{margin-left:0;flex-basis:100%;padding-top:6px;padding-bottom:3px}.table-under{display:block}.legend{margin-top:5px}}
@media(max-width:620px){.preset-list{grid-template-columns:repeat(2,1fr)}}
#fine-aim{font-size:10px;white-space:nowrap;padding:5px 7px;border:1px solid var(--line);margin-left:auto}
#fine-aim[aria-pressed=true]{background:#e8ece3;border-color:#8b9e83;color:#244b3e}
#fine-aim+output{margin-left:0}
#table[data-mode=aim]{cursor:default}
#table[data-mode=aim] .ball-hit{cursor:default}
#table [data-cue]{cursor:grab;outline:none}
#table.cue-dragging,#table.cue-dragging *{cursor:grabbing!important}
#table.cue-dragging .cue-handle,#table [data-cue]:focus-visible .cue-handle{fill-opacity:.65;stroke:#fff;stroke-width:2.5}
@media(hover:hover) and (pointer:fine){#table [data-cue]:hover .cue-handle{fill-opacity:.45;stroke:#fff}}

/* v0.3: responsive working surface. All controls remain available at every size. */
.skip-link{position:absolute;left:12px;top:-100px;background:var(--paper);padding:12px;z-index:20;color:var(--ink)}
.skip-link:focus{top:8px}
.workspace>*{min-width:0}
.retry{margin:0 16px 16px}
.result-strip>div{min-width:0}
.result-strip strong{overflow-wrap:anywhere}
#object-result .object-stop{white-space:normal}
.section-label{flex-wrap:wrap}
dialog{max-height:85vh;max-height:85dvh;overflow:auto}
@media(max-width:820px){
  body{font-size:16px}
  main{padding:16px 12px 0}
  .masthead{height:auto;min-height:64px;padding:10px 16px;flex-wrap:wrap}
  .masthead>.quiet{font-size:12px;min-height:44px}
  .brand strong{font-size:17px}
  .intro{margin-bottom:16px}
  .intro h1{font-size:23px;margin-bottom:8px}
  .intro .eyebrow{font-size:10px}
  .intro p:not(.eyebrow){font-size:14px;line-height:1.6}
  .workspace{display:flex;flex-direction:column;gap:0}
  .table-panel{display:contents}
  .table-toolbar{order:0;width:100%;padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:10px 10px 0 0;gap:8px}
  .table-wrap{order:1;width:100%;padding:5px 0;background:#efeee7;border-left:1px solid var(--line);border-right:1px solid var(--line);z-index:3}
  #table{min-height:0;max-height:340px;max-height:min(38svh,340px)}
  .table-under{order:2;width:100%;padding:10px 12px;border:1px solid var(--line);border-top:0}
  .table-under p{font-size:12px;line-height:1.7}
  .legend{font-size:12px;gap:14px}
  .playback{order:3;width:100%;padding:12px 0 2px;gap:8px}
  .timeline{order:4;width:100%!important;margin:0 0 12px;height:44px!important}
  .controls{order:5;width:100%;grid-template-columns:1fr 1fr;margin-bottom:16px}
  .result-strip{order:6;width:100%;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:16px;grid-template-columns:1fr 1fr;gap:16px}
  .result-strip>div:nth-child(3){border:0;padding:0}
  .result-strip span{font-size:12px}
  .result-strip strong,#object-result .object-stop{font-size:14px;line-height:1.6}
  .status{order:7;margin:12px 0;font-size:12px;overflow-wrap:anywhere}
  .retry{order:8;margin:0 0 16px}
  button,.mode-switch button,.table-toolbar>.quiet,.ball-action,.primary,.secondary,.fine-row button,.tip-presets button,.text-button,#fine-aim{min-height:44px;font-size:14px}
  .target-chip{width:44px;height:44px;font-size:16px;flex-shrink:0}
  #target-list{gap:8px}
  .ball-tools{flex-basis:100%;gap:8px;padding:4px 0}
  #ball-count{font-size:12px}
  .ball-action{padding:8px 10px}
  .table-toolbar>.quiet{margin-left:auto;padding:8px}
  .control-block,.compare-block{padding:16px}
  .section-label{gap:8px;margin-bottom:8px}
  .section-label h2{font-size:16px}
  .section-label output{font-size:14px}
  #fine-aim{padding:6px 8px;font-size:12px}
  input[type=range]{height:44px;margin:0}
  input[type=range]::-webkit-slider-thumb{min-width:24px;min-height:24px}
  input[type=range]::-moz-range-thumb{width:24px;height:24px}
  .fine-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:4px}
  .fine-row span{grid-column:1/-1;grid-row:2;font-size:12px;max-width:none;margin:4px 0}
  .range-labels,.micro{font-size:12px;line-height:1.7}
  .tip-row{justify-content:center;gap:16px}
  #tip{width:160px;height:160px;max-width:60%;flex-shrink:1}
  .tip-info strong{font-size:16px}
  .tip-info p,.tip-info output{font-size:12px}
  .tip-presets{gap:6px;flex-wrap:wrap}
  .tip-presets button{min-width:42px}
  .compare-block h2{font-size:16px}
  .compare-block>p:not(.micro){font-size:14px}
  .compare-block>div{flex-wrap:wrap;gap:12px}
  .speed-label{font-size:12px;margin-left:auto;gap:6px}
  .speed-label select{font-size:16px;min-height:44px;max-width:none}
  #clock{font-size:12px;width:auto;margin-left:auto}
  .preset-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .preset{padding:14px;min-height:90px}
  .preset strong{font-size:14px}
  .preset small{font-size:12px;line-height:1.6}
  .preset>span{position:static;display:block;font-size:10px;margin-bottom:8px}
  footer{font-size:12px;line-height:1.7;padding-bottom:calc(20px + env(safe-area-inset-bottom))}
  dialog{padding:20px}
  dialog p,dialog li,dialog summary{font-size:15px}
  .sources{font-size:13px!important}
}
/* Keep the actual table visible while adjusting controls on a portrait phone. */
@media(max-width:820px) and (min-height:500px){.table-wrap{position:sticky;top:0;box-shadow:0 4px 12px #102b3014}}
@media(max-width:600px){
  .controls{grid-template-columns:1fr}
  .control-block:nth-child(1),.tip-block{border-right:0}
  .tip-block{border-bottom:1px solid var(--line)}
  .compare-block{background:#eeeee5}
  #tip{width:180px;height:180px}
  .section-label{flex-wrap:nowrap}
  .section-label>span{font-size:10px}
  .section-label h2{font-size:15px}
  .playback .primary{flex:1;padding:10px 12px}
  .playback .secondary{padding:10px 12px}
  .speed-label{margin-left:0}
}
@media(pointer:coarse) and (min-width:821px){
  button,select{min-height:44px}
  .target-chip{width:44px;height:44px}
  input[type=range]{height:44px}
}