/* Article-specific pieces: the pipeline diagram, the run stepper, the labelling diagram, the sim/real grid. */

/* Figure 2: how it works */
.flow{ display:grid; grid-template-columns:1.3fr auto 1fr auto 1.35fr auto 1fr auto .9fr; align-items:center; gap:10px; font-family:var(--sans); }
.flow .node{ background:var(--bg); border:1px solid var(--rule); border-radius:10px; padding:14px; font-size:13.5px; line-height:1.45; color:var(--ink-2); min-width:0; }
.flow .node b{ display:block; color:var(--ink); font-weight:600; font-size:14.5px; margin-bottom:3px; }
.flow .node.model{ border-color:var(--ink-2); }
.flow .cams{ display:grid; grid-template-columns:repeat(3,1fr); gap:5px; margin-bottom:9px; }
.flow .cams img{ width:100%; aspect-ratio:1; object-fit:cover; border-radius:5px; display:block; }
.flow .arr{ width:22px; height:2px; background:var(--muted); position:relative; }
.flow .arr::after{ content:""; position:absolute; right:-1px; top:-4px; border:5px solid transparent; border-left:7px solid var(--muted); border-right:0; }
.flow .outs{ display:grid; gap:8px; }
.flow .outs .node{ padding:10px 12px; }
.flow .k{ display:block; font-size:11.5px; letter-spacing:.05em; text-transform:uppercase; color:var(--muted); font-weight:600; margin-bottom:2px; }
@media (max-width:860px){
  .flow{ grid-template-columns:1fr; }
  .flow .arr{ width:2px; height:18px; justify-self:center; }
  .flow .arr::after{ right:-4px; top:auto; bottom:-1px; border:5px solid transparent; border-top:7px solid var(--muted); border-bottom:0; }
}
.chips{ display:flex; flex-wrap:wrap; gap:6px; margin:.2em 0 1.2em; font-family:var(--mono); font-size:12.5px; }
.chips span{ padding:3px 8px; border-radius:6px; background:var(--panel); color:var(--ink-2); }
.chips span b{ color:var(--muted); font-weight:500; margin-right:5px; }

/* Figure 3: the stepper */
.stepper{ display:grid; grid-template-columns:minmax(0,1.05fr) minmax(0,1fr); gap:22px 26px; }
.st-view{ display:grid; grid-template-columns:minmax(0,2fr) minmax(0,1fr); gap:8px; align-content:start; }
.st-frame{ margin:0; }
.st-img{ position:relative; }
.st-frame img{ width:100%; height:auto; aspect-ratio:1; object-fit:cover; display:block; border-radius:8px; background:var(--panel-2); }
.st-frame figcaption{ margin-top:4px; font-size:12px; }
.st-thumbs{ display:grid; gap:8px; align-content:start; }
.st-dot{ position:absolute; width:26px; height:26px; margin:-13px 0 0 -13px; border-radius:50%; border:2.5px solid #fff; box-shadow:0 0 0 2px rgba(0,0,0,.55); pointer-events:none; transition:left .25s, top .25s; }
.st-dot::after{ content:""; position:absolute; left:50%; top:50%; width:4px; height:4px; margin:-2px 0 0 -2px; background:#fff; border-radius:50%; }
.st-info{ font-family:var(--sans); min-width:0; }
.st-head{ display:flex; justify-content:space-between; gap:10px; font-size:13px; color:var(--muted); }
.st-skill{ font-family:var(--mono); font-size:22px; color:var(--ink); margin:4px 0 6px; letter-spacing:-.02em; }
.st-note{ font-size:14.5px; line-height:1.5; color:var(--ink-2); min-height:3em; margin:0 0 14px; }
.st-sec{ font-size:11.5px; letter-spacing:.05em; text-transform:uppercase; color:var(--muted); font-weight:500; margin:12px 0 6px; }
.probs{ display:grid; grid-template-columns:auto 1fr 44px; gap:3px 10px; align-items:center; font-size:12.5px; }
.probs .n{ font-family:var(--mono); color:var(--ink-2); white-space:nowrap; }
.probs .v{ font-family:var(--mono); text-align:right; color:var(--muted); font-variant-numeric:tabular-nums; }
.probs .b{ height:8px; background:var(--panel-2); border-radius:4px; position:relative; overflow:hidden; }
.probs .b span{ position:absolute; inset:0 auto 0 0; background:var(--muted); border-radius:4px; transition:width .3s; }
.probs .n.top, .probs .v.top{ color:var(--ink); font-weight:500; }
.probs .b.top span{ background:var(--accent); }
.probs .n.ran::after{ content:" ← executed"; color:var(--fail); }
.probs.none{ display:block; color:var(--muted); font-size:13px; }
.checks{ display:grid; gap:8px; font-size:13px; line-height:1.4; color:var(--ink-2); }
.checks .q{ margin-bottom:4px; }
.checks .yn{ display:grid; grid-template-columns:1fr 64px; gap:10px; align-items:center; }
.checks .b{ height:8px; border-radius:4px; background:var(--panel-2); position:relative; overflow:hidden; }
.checks .b span{ position:absolute; inset:0 auto 0 0; background:var(--accent); }
.checks .v{ font-family:var(--mono); font-size:12.5px; text-align:right; }
.calls{ font-size:12.5px; color:var(--muted); display:grid; gap:2px; }
.calls div{ display:flex; justify-content:space-between; gap:10px; }
.calls .num{ color:var(--ink-2); }
.st-controls{ grid-column:1 / -1; display:grid; grid-template-columns:auto 1fr; gap:14px; align-items:center; font-family:var(--sans); }
.st-btns{ display:flex; gap:6px; }
.st-btns button{ font:500 13px var(--sans); color:var(--ink); background:var(--bg); border:1px solid var(--rule); border-radius:8px; padding:7px 11px; cursor:pointer; min-width:38px; }
.st-btns button:hover{ background:var(--hl); border-color:var(--hl); }
.st-track{ display:grid; grid-template-columns:repeat(15,1fr); gap:3px; }
.st-track button{ height:30px; border:0; border-radius:4px; cursor:pointer; background:var(--panel-2); position:relative; font:500 11px var(--mono); color:var(--muted); padding:0; }
.st-track button:hover{ background:var(--hl); }
.st-track button.b0{ box-shadow:inset 0 -3px 0 var(--blue); }
.st-track button.b1{ box-shadow:inset 0 -3px 0 var(--yellow); }
.st-track button[aria-current="true"]{ background:var(--ink); color:var(--bg); }
@media (max-width:820px){
  .stepper{ grid-template-columns:1fr; }
  .st-controls{ grid-template-columns:1fr; }
  .st-track button{ height:26px; font-size:10px; }
}

/* Figure 4: sim vs real */
.simreal{ display:grid; grid-template-columns:repeat(6,minmax(0,1fr)); gap:8px; }
.simreal img{ width:100%; aspect-ratio:1; object-fit:cover; display:block; border-radius:7px; background:var(--panel-2); }
.simreal .lab{ grid-column:span 4; font-family:var(--sans); font-size:12px; letter-spacing:.05em; text-transform:uppercase; color:var(--muted); font-weight:500; }
.simreal .lab.r{ grid-column:span 2; }
@media (max-width:640px){ .simreal{ grid-template-columns:repeat(4,minmax(0,1fr)); } .simreal .lab{ grid-column:span 4; } .simreal .lab.r{ grid-column:span 4; margin-top:6px; } .simreal .real{ grid-column:span 2; } }

/* Figure 5: outcome labels */
.lbl-diagram{ display:grid; grid-template-columns:200px minmax(0,1fr); gap:22px; align-items:center; font-family:var(--sans); }
.lbl-state img{ width:100%; aspect-ratio:1; border-radius:8px; display:block; }
.lbl-state div{ font-size:12.5px; color:var(--muted); margin-top:6px; line-height:1.4; }
.branches{ display:grid; gap:6px; }
.branch{ display:grid; grid-template-columns:128px minmax(40px,1fr) 150px 58px; gap:10px; align-items:center; font-size:13px; padding:7px 10px; border-radius:8px; background:var(--bg); border:1px solid var(--rule); }
.branch .s{ font-family:var(--mono); font-size:12.5px; color:var(--ink); }
.branch .path{ height:0; border-top:1.5px dashed var(--muted); opacity:.6; }
.branch .o{ color:var(--ink-2); }
.branch .sc{ font-family:var(--mono); text-align:right; color:var(--ink); }
.branch.best{ border-color:var(--ink-2); }
.branch.best .sc::before{ content:"label "; color:var(--muted); font-family:var(--sans); font-size:11px; letter-spacing:.04em; text-transform:uppercase; }
.branch.bad .o{ color:var(--fail); }
.formula{ font-family:var(--mono); font-size:13px; color:var(--ink-2); margin-top:10px; }
@media (max-width:720px){
  .lbl-diagram{ grid-template-columns:1fr; }
  .lbl-state{ max-width:220px; }
  .branch{ grid-template-columns:110px 1fr 54px; }
  .branch .path{ display:none; }
}

/* two-up and three-up media */
.two{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; align-items:start; }
.two > div{ min-width:0; }
.subcap{ font-family:var(--sans); font-size:13px; color:var(--ink-2); font-weight:500; margin:0 0 8px; }
@media (max-width:760px){ .two{ grid-template-columns:1fr; } }
.tip{ position:fixed; z-index:10; pointer-events:none; max-width:280px; background:var(--ink); color:var(--bg); font:13px/1.4 var(--sans); padding:8px 10px; border-radius:8px; opacity:0; transition:opacity .12s; }
.tip.on{ opacity:1; }