/* Same visual language as the goal explainer; diagrams stay readable as HTML. */
html:has(#training-dialog[open]){overflow:hidden}
#training-dialog{width:min(1120px,calc(100% - 40px));max-height:calc(100dvh - 48px);padding:0;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:20px;overflow:auto;overscroll-behavior:contain;box-shadow:0 24px 100px #0005}
#training-dialog::backdrop{background:#070c0dbd;backdrop-filter:blur(6px)}
#close-training{display:flex;align-items:center;gap:10px;min-height:44px;padding:6px 12px;border:1px solid var(--line);border-radius:7px;background:transparent;color:var(--ink);font-size:13px;flex-shrink:0}
#close-training span{font-size:23px;line-height:1}
.training-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:24px}
.training-tabs button{min-height:46px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--muted);font-size:14px;font-weight:600;text-align:left}
.training-tabs button:hover{background:var(--choice-idle);color:var(--ink)}
.training-tabs button[aria-selected=true]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
#training-panel{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center}
.training-visual{min-width:0;align-self:stretch;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:12px;background:var(--bg);overflow:hidden}
#training-drawing{flex:1;display:flex;align-items:center;justify-content:center;min-width:0;min-height:390px}
.training-visual figcaption{font-size:12px;line-height:1.6;padding:12px 16px;border-top:1px solid var(--line);color:var(--muted)}
.training-copy h3{font-size:28px;line-height:1.2;letter-spacing:-.03em;margin:10px 0 14px}
.training-copy>p:not(.eyebrow){font-size:16px;line-height:1.65}
.training-copy dl{margin:20px 0 0;display:grid;gap:16px}
.training-copy dl>div{padding-top:14px;border-top:1px solid var(--line)}
.training-copy dt{font-size:14px;font-weight:650;color:var(--ink);margin-bottom:5px}
.training-copy dd{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
.training-note{display:block;padding:16px 0 0;margin-top:24px;border-top:1px solid var(--line);font-size:13px;line-height:1.6;color:var(--muted)}
.training-note strong{color:var(--ink)}
.tracker-picture{width:100%;position:relative}
.tracker-picture svg{width:100%;display:block}
.target-torso{--target-color:#76b900}.target-hands{--target-color:#3b9dff}.target-feet{--target-color:#ed9235}
.tracker-picture circle{stroke:var(--target-color);fill:var(--target-color);fill-opacity:.15;stroke-width:2}
.tracker-picture circle[r="3"]{fill-opacity:1;stroke-width:0}
.tracker-legend{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;font-size:13px;padding:0 16px 16px;color:var(--ink)}
.tracker-legend span{display:flex;align-items:center;gap:6px}
.tracker-legend i{display:block;width:8px;height:8px;background:var(--target-color);border-radius:50%}
.training-diagram-note{text-align:center;padding:18px 16px 0;color:var(--muted);font-size:13px}
.distillation-picture{padding:22px 18px;width:100%}
.distill-inputs,.distill-actors{display:grid;grid-template-columns:1fr 76px 1fr;align-items:center;gap:4px}
.distill-inputs{margin-bottom:10px;text-align:center;font-size:13px;color:var(--muted)}
.distill-inputs>span:nth-child(2){grid-column:3}
.distill-inputs>span::after{content:'↓';display:block;font-size:23px;color:var(--green);margin-top:4px}
.training-model{padding:15px 7px;border:1px solid var(--line);border-radius:10px;background:var(--paper);text-align:center;min-width:0}
.training-model strong{display:block;font-size:16px;line-height:1.3}
.training-model small{display:block;font-size:12px;color:var(--muted);margin-top:7px}
.training-model svg{width:70px;height:43px;max-width:100%;margin:0 auto 9px;display:block;color:var(--green)}
.training-model.frozen svg{color:var(--muted)}
.distill-supervision{color:var(--muted);font-size:12px;text-align:center;line-height:1.3}
.distill-supervision span{display:block;font-size:27px;color:var(--green);line-height:1.5}
.rollout-diagram{height:193px;position:relative;display:grid;grid-template-columns:1fr 76px 1fr}
.rollout-diagram .student-action{grid-column:3;text-align:center;font-size:12px;padding-top:8px;z-index:1}
.student-action span{display:block;font-size:21px;line-height:1.2;color:var(--green)}
.student-action img{width:145px;height:109px;object-fit:contain;margin:0 auto}
.rollout-feedback{position:absolute;left:calc((100% - 84px)/4);right:calc((100% - 84px)/4);top:0;height:159px;border-left:2px solid var(--green);border-bottom:2px solid var(--green);border-radius:0 0 0 12px}
.rollout-feedback::before{content:'';position:absolute;top:0;left:-6px;width:8px;height:8px;transform:rotate(45deg);border-top:2px solid var(--green);border-left:2px solid var(--green)}
.rollout-label{position:absolute;bottom:0;left:0;right:0;text-align:center;font-size:13px;color:var(--ink)}
.scene-iteration{width:100%;padding:20px 16px}
.scene-variants{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin:16px 0 24px}
.scene-variants>div{border:1px solid var(--line);border-radius:8px;background:var(--paper);overflow:hidden;text-align:center}
.scene-variants img{width:100%;height:auto}
.scene-variants span{display:block;font-size:12px;color:var(--muted);padding:5px 2px 9px}
.iteration-loop{display:grid;grid-template-columns:1fr 40px 1fr;align-items:center;gap:4px}
.iteration-node{border:1px solid var(--line);background:var(--paper);border-radius:10px;padding:14px 10px;font-size:14px;text-align:center}
.iteration-node strong{display:block;margin-bottom:5px}
.iteration-node span{font-size:12px;color:var(--muted);display:block}
.iteration-arrows{font-size:24px;color:var(--green);line-height:1.25;text-align:center}
.iteration-metrics{font-size:13px;text-align:center;margin-top:16px;color:var(--ink)}
.scene-iteration .training-diagram-note{padding:0}
@media(max-width:800px){
 #training-dialog{width:100%;height:100dvh;max-height:100dvh;max-width:none;margin:0;border:0;border-radius:0}
 #training-panel{grid-template-columns:1fr;gap:22px}
 #training-dialog .goal-dialog-header{padding:18px 20px 16px;gap:12px}
 #training-dialog .goal-dialog-header h2{font-size:25px}
 #training-dialog .goal-dialog-header p:not(.eyebrow){font-size:14px}
 .training-tabs{gap:6px;margin-bottom:18px}.training-tabs button{font-size:12px;padding:9px 8px;line-height:1.4}
 #training-drawing{min-height:0}.tracker-picture svg{max-height:275px}
 .training-copy h3{font-size:25px}.training-copy>p:not(.eyebrow){font-size:15px}
 .training-visual figcaption{padding:10px 12px}
 .distill-inputs,.distill-actors,.rollout-diagram{grid-template-columns:1fr 62px 1fr}
 .distillation-picture{padding:18px 12px}.training-model strong{font-size:14px}
 .scene-iteration{padding:16px 12px}.iteration-node{padding:12px 6px;font-size:13px}
 .training-note{font-size:12px}
}
@media(max-width:380px){#training-dialog .goal-dialog-header h2{font-size:22px}.training-tabs button{font-size:12px}#training-dialog .goal-dialog-body{padding-inline:16px}}
@media(max-height:500px){#training-dialog .goal-dialog-header{padding:12px 20px}#training-dialog .goal-dialog-header h2{font-size:22px}}