.graphics-simulator{--teal:var(--accent);--wash:var(--soft);min-width:0}
.graphics-simulator [hidden]{display:none!important}
.graphics-simulator .topic-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:18px 0}
.graphics-simulator .topic-nav button{text-align:left;display:block;white-space:normal;min-width:0}
.graphics-simulator .topic-nav span{display:block;font-size:.75rem;margin-top:4px;color:var(--muted)}
.graphics-simulator .topic-nav .sim-mode-title{display:flex;align-items:center;gap:7px;font-size:inherit;margin:0;color:inherit}
.graphics-simulator .sim-mode-title .aula-icon{width:20px;height:20px;flex:none}
.graphics-simulator [data-sim-jump]{display:inline-flex;align-items:center;justify-content:center;gap:7px;white-space:normal;min-height:44px}
.graphics-simulator [data-sim-jump] .aula-icon{width:20px;height:20px;flex:none}
.graphics-simulator button[aria-pressed=true]{border-color:var(--accent);background:var(--soft);box-shadow:inset 0 -3px var(--accent)}
.graphics-simulator .intro{margin:18px 0;max-width:850px}
.graphics-simulator .workspace{display:grid;grid-template-columns:minmax(245px,300px) minmax(0,1fr);gap:16px;align-items:start}
.graphics-simulator .controls,.graphics-simulator .stage,.graphics-simulator .lesson,.graphics-simulator .exports{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px;min-width:0}
.graphics-simulator .stage{position:sticky;top:85px}
.graphics-simulator .stage-title{font-weight:700;font-size:.9rem}
.graphics-simulator .control{margin:16px 0}
.graphics-simulator .control label{display:block;font-weight:600;margin-bottom:5px}
.graphics-simulator .pair{display:flex;gap:10px;align-items:center}
.graphics-simulator .pair input[type=range]{min-width:0;flex:1;width:100%;accent-color:var(--accent)}
.graphics-simulator .pair input[type=number]{width:90px;min-width:0}
.graphics-simulator select{width:100%;min-width:0}
.graphics-simulator .check{display:flex;gap:8px;align-items:center;min-height:44px;margin:8px 0}
.graphics-simulator .check input{width:19px;height:19px;flex:none}
.graphics-simulator .check label{flex:1}
.graphics-simulator fieldset{border:0;padding:0;margin:0;min-width:0}
.graphics-simulator legend{font-weight:700;padding-top:10px}
.graphics-simulator .divider{border-top:1px solid var(--line);margin-top:18px;padding-top:16px}
.graphics-simulator canvas{display:block;width:100%;height:auto;aspect-ratio:900/600;background:white;border:1px solid var(--line);border-radius:6px;touch-action:pan-y}
.graphics-simulator canvas.draggable{touch-action:none;cursor:crosshair}
.graphics-simulator .caption,.graphics-simulator .hint,.graphics-simulator small{font-size:.8rem;color:var(--muted)}
.graphics-simulator .below{margin-top:16px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.graphics-simulator .observation,.graphics-simulator .answer{padding:12px;border-left:3px solid var(--accent);background:var(--soft)}
.graphics-simulator table{font-size:.85rem;width:100%;font-variant-numeric:tabular-nums}
.graphics-simulator .table-wrap{overflow-x:auto;max-width:100%}
.graphics-simulator .status{min-height:1.5em;color:var(--accent)}
.graphics-simulator .status.error{color:var(--danger,#b93838)}
.graphics-simulator input[type=file]{display:none}
.graphics-simulator .row{display:flex;gap:8px;flex-wrap:wrap}
.graphics-save{font-size:.8rem;color:var(--muted)}
@media(max-width:1000px){.graphics-simulator .workspace{grid-template-columns:245px minmax(0,1fr)}.graphics-simulator .topic-nav{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.graphics-simulator .workspace{display:flex;flex-direction:column;gap:12px}.graphics-simulator .stage{order:-1;width:100%;position:static;padding:10px}.graphics-simulator .controls{width:100%}.graphics-simulator .below{grid-template-columns:1fr}.graphics-simulator .topic-nav button{font-size:.8rem;padding:10px}.graphics-simulator .controls,.graphics-simulator .lesson,.graphics-simulator .exports{padding:12px}.graphics-simulator .row button{white-space:normal}}
@media print{.graphics-simulator .controls,.graphics-simulator .topic-nav,.graphics-simulator .exports{display:none}.graphics-simulator .workspace{display:block}.graphics-simulator .stage{position:static}.graphics-simulator .below{display:block}}