/* SPDX-License-Identifier: Apache-2.0 */
/* R11 laboratory grammar for every gallery module: question → your move → figure → result and next step.
   Wide screens put the figure left of the move and its result, as in the opening; phones keep the move first. */
.workspace.lab{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,340px);grid-template-rows:auto 1fr;grid-template-areas:'figure task' 'figure outcome';gap:14px 24px;align-items:start;margin-top:12px}
.lab .lab-task{grid-area:task;min-width:0}
.lab .lab-figure{grid-area:figure;min-width:0}
.lab .lab-outcome{grid-area:outcome;min-width:0;align-self:start}
.lab .lab-task .action-line{margin:0 0 10px}
.lab .lab-task .status-line{margin-top:10px}
.lab .figure-head{padding:10px 15px;align-items:baseline;flex-wrap:wrap}
.lab .figure-head .scope{font-size:.82rem;color:var(--muted);font-weight:normal}
.lab .figure-body{padding:12px}
.lab .figure .caption{font-size:1rem;line-height:1.35}
.lab-outcome .goal{font-size:.92rem;margin:0 0 8px;padding:6px 9px;border-radius:6px;background:var(--pale);color:var(--ink)}
.lab-outcome .goal span{font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-right:5px}
.lab-outcome .feedback{padding:11px 12px;border-left:3px solid var(--teal);background:#edf5f1;color:#164c43;font-size:1.0625rem;line-height:1.35}
.lab-outcome .feedback.pending{border-color:var(--gold);background:#fff6e8;color:#674014}
.lab-outcome .feedback.error{border-color:var(--wine);background:#fceced;color:var(--wine)}
.lab-outcome .feedback.revealed{border-color:var(--blue);background:#edf1f9;color:#28446e}
.lab-next{display:grid;gap:8px;margin-top:10px}
.lab-next>button,.lab-next>.button{width:100%}
.lab-route{display:block;padding:9px 12px;border:1px solid #d6c5ca;border-radius:6px;text-decoration:none;color:var(--wine);background:white;font-size:1rem;line-height:1.3}
.lab-route:hover{background:var(--pale)}
.lab-route b{color:var(--ink)}
.ct-paper-guide.lab-guide{margin:4px 0 2px;padding:6px 11px;background:#f8f5f2;border-left:3px solid #8f8086;font-size:.98rem;line-height:1.35;max-width:960px}
.ct-paper-guide.lab-guide summary{color:var(--ink);font-weight:normal;cursor:pointer}
.ct-paper-guide.lab-guide[open] summary{margin-bottom:4px}
.lab-guide-kicker{font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--wine);font-weight:700;margin-right:6px}
.ct-paper-guide.lab-guide p{margin:6px 0}
.kicker{font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;color:var(--wine);font-weight:700;margin-right:4px}
.file-status:not(:empty){margin-top:8px}
.file-status.good{background:#edf5f1}
.file-status.error{background:#fceced;color:var(--wine);border-left:3px solid var(--wine)}
@media(max-width:900px){
 .workspace.lab{grid-template-columns:minmax(0,1fr);grid-template-rows:auto;grid-template-areas:'task' 'figure' 'outcome';gap:12px}
}
@media(max-width:650px){
 .lab .lab-task{padding:11px 12px}
 .lab .lab-task .action-line{font-size:.98rem;margin-bottom:8px}
 .lab .figure-body{padding:8px}
 .lab-outcome .feedback{font-size:1rem;padding:9px 10px}
 .lab-outcome .goal{font-size:.88rem}
 .ct-paper-guide.lab-guide{font-size:.92rem;padding:5px 9px}
 .lab-route{font-size:.95rem}
}

/* Shared exercise pieces */
.ex-row{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:8px 0}
.ex-row button[aria-pressed=true],.ex-toggle[aria-pressed=true]{background:var(--wine);color:white;border-color:var(--wine)}
.ex-toggle{min-height:38px;padding:5px 10px;font-size:.95rem}
.ex-chips{display:flex;flex-wrap:wrap;gap:5px;margin:8px 0;padding:0;list-style:none}
.ex-chips li{border:1px solid #d8cdd0;border-radius:999px;padding:3px 10px;font-size:.88rem;background:white;color:var(--muted)}
.ex-chips li.done{border-color:#7eb5a6;background:#edf5f1;color:#164c43}
.ex-chips li.done:before{content:'✓ ';font-weight:700}
.ex-chips li.na{border-style:dashed;color:#9a8f93}
.ex-equation{font-variant-numeric:tabular-nums;background:#faf6f2;border-radius:4px;padding:8px 11px;margin:8px 0;font-size:1.02rem;line-height:1.45;overflow-wrap:anywhere}
.ex-equation b{color:var(--wine)}
.ex-note{font-size:.95rem;color:#4f474a;margin:6px 0}
.ex-legend{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:.9rem;color:var(--muted);margin:6px 0}
.ex-legend i{display:inline-block;width:18px;height:0;border-top:3px solid currentColor;vertical-align:middle;margin-right:5px}
.ex-legend .k-a{color:var(--wine)}
.ex-legend .k-b{color:var(--teal)}
.ex-legend .k-b i{border-top-style:dashed}
.ex-legend .k-off{color:#a79ca0}
.ex-legend .k-off i{border-top-style:dotted}
svg .inc-box{fill:#f7f3f5;stroke:#d5c9cf;stroke-width:1.2}
svg .inc-a{stroke:var(--wine);stroke-width:4}
svg .inc-b{stroke:var(--teal);stroke-width:4;stroke-dasharray:8 5;fill:none}
svg .inc-b-off{stroke:#c3b8bc;stroke-width:2.2;stroke-dasharray:2 5;fill:none}
svg .inc-hit{stroke:transparent;stroke-width:20;fill:none;cursor:pointer}
svg .inc-level{fill:white;stroke:#5f5458;stroke-width:1.6}
svg .comp-0{fill:#f1e6e8}
svg .comp-1{fill:#e3efe9}
svg .comp-2{fill:#e6ebf6}
svg .comp-3{fill:#f6eedc}
svg .comp-4{fill:#ece6f3}
svg .comp-5{fill:#e9f0f0}
svg .comp-6{fill:#f2ece8}
svg .mark-band{fill:#e9eef8}
svg .base-pt{fill:white;stroke:#6b5f63;stroke-width:1.8}
svg .actual-pt{fill:var(--blue)}
svg .move-arrow{stroke:var(--gold);stroke-width:2.5;fill:none}
svg text.blue{fill:var(--blue)}
svg text.teal{fill:var(--teal)}
svg text.wine{fill:var(--wine)}
svg text.muted{fill:#857a7e}

fieldset.ex-cols{border:0;padding:0;margin:0 0 4px;min-width:0}
fieldset.ex-cols legend{font-size:.95rem;font-weight:700;padding:0;margin-bottom:2px}
.ex-small button{font-size:.92rem;min-height:36px;padding:5px 10px}
.inc-scroll svg{display:block;width:100%;height:auto;max-height:none}
/* Published data audit */
.data-cards{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;margin:10px 0}
.data-card{border:1px solid var(--line);border-radius:7px;background:white;padding:12px 14px;min-width:0}
.data-card h2{font-size:1.3rem;margin:0 0 6px}
.data-card h2 small{font-size:.8rem;color:var(--muted);font-weight:normal;margin-left:6px}
.data-source{font-size:.95rem;line-height:1.35}
.data-actions{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}
.data-grid{display:block;width:100%;height:auto;max-height:240px;margin:8px 0}
.data-grid text.tiny{font-size:13px}
.data-count{font-size:.95rem;font-variant-numeric:tabular-nums}
.data-count .bad{color:var(--wine)}
.data-verdict{padding:9px 11px;border-left:3px solid var(--teal);background:#edf5f1;font-size:1rem}
.data-verdict.error{border-color:var(--wine);background:#fceced}
.data-move{margin:10px 0}
.data-run{margin:8px 0}
@media(max-width:900px){.data-cards{grid-template-columns:minmax(0,1fr)}}
.t1-card,.act-card{border-top:1px solid #ded5d8;margin-top:12px;padding-top:6px}
.t1-table{border-collapse:collapse;width:100%;font-size:.92rem;line-height:1.25;margin:4px 0}
.t1-table caption{text-align:left;font-size:.88rem;color:var(--muted);margin-bottom:4px}
.t1-table th,.t1-table td{border-bottom:1px solid var(--line);padding:5px 6px;text-align:left;font-weight:normal}
.t1-table tr.current{background:#eef3fb;outline:2px solid #2b5eae;outline-offset:-2px}
.t1-table tr.seen th{color:#164c43}
.t1-routes{display:grid;gap:5px;margin:6px 0}
.t1-route{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(60px,1fr) auto;gap:8px;align-items:center;font-size:.92rem;padding:4px 6px;border-radius:4px;background:#f7f3f1}
.t1-route.wins{background:#e8f0fb;outline:1px solid #8fa9d6}
.t1-bar{display:block;height:10px;width:var(--w);background:#b9aeb0;border-radius:3px}
.t1-route.wins .t1-bar{background:var(--blue)}
.act-figure{display:block;width:100%;height:auto;max-height:260px}
.ex-legend .blue{color:var(--blue)}
@media(max-width:700px){.t1-route{grid-template-columns:minmax(0,1fr) 60px auto;font-size:.86rem}.t1-table{font-size:.86rem}}
.sidon-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:14px;align-items:start}
.sidon-grid svg{max-height:400px}
.sum-table{border-collapse:separate;border-spacing:2px;font-size:.82rem;font-variant-numeric:tabular-nums;margin:auto}
.sum-table th{font-weight:700;color:var(--muted);padding:2px 4px}
.sum-table td{border:1px solid #e1d8da;border-radius:3px;padding:3px 4px;text-align:center;background:white;min-width:2.6em}
.sum-table td.blank{border:0;background:transparent}
.sum-table td.shared{background:#f7dfe3;border-color:#c56d7f;color:#6d1426;font-weight:700}
.sum-table td.picked{outline:2px solid var(--blue);outline-offset:-1px;background:#eef3fb}
svg .sidon-conflict{stroke:var(--gold);stroke-width:2.5;stroke-dasharray:6 5}
svg .sidon-cross{stroke:#9b8f93;stroke-width:2.6}
svg .sidon-sum path{fill:var(--wine)}
.mini-field{display:inline-flex!important;align-items:center;gap:3px;margin:2px 6px 2px 0!important;font-size:.92rem!important}
.mini-field select{padding:3px;min-height:32px}
@media(max-width:1100px){.sidon-grid{grid-template-columns:minmax(0,1fr)}}
.prefix-columns{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px}
.prefix-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:5px}
.prefix-list li.more{font-size:.85rem;color:var(--muted);align-self:center}
.prefix-chip{display:grid;gap:1px;min-height:38px;padding:4px 8px;font-size:.9rem;text-align:center;font-variant-numeric:tabular-nums;color:var(--ink)}
.prefix-chip small{font-size:.72rem;color:inherit}
.prefix-chip.lifted{background:var(--teal);border-color:var(--teal);color:white}
.prefix-columns section:last-child .prefix-chip.lifted{background:var(--blue);border-color:var(--blue)}
svg .teal-fill{fill:var(--teal)}
svg .blue-fill{fill:var(--blue)}
svg .target-line{stroke:var(--wine);stroke-width:3;stroke-dasharray:5 3}
@media(max-width:650px){.prefix-columns{grid-template-columns:minmax(0,1fr)}}
.exist-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:14px;align-items:start}
.exist-layout svg{max-height:380px}
svg .exist-covered{fill:var(--teal)}
svg .exist-impossible{fill:var(--wine)}
svg .exist-unasserted{fill:#e3d9d6;stroke:#c9bcb8}
svg .exist-unknown{fill:white;stroke:var(--wine);stroke-width:2;stroke-dasharray:3 2}
svg .exist-ring{fill:none;stroke:var(--blue);stroke-width:2.5}
.ex-classify{display:grid;gap:6px}
.ex-classify button{justify-content:flex-start;text-align:left}
.exist-reasons{margin:4px 0;padding-left:18px;font-size:.95rem}
.exist-evidence table{font-size:.88rem}
@media(max-width:1100px){.exist-layout{grid-template-columns:minmax(0,1fr)}}
.figure .ex-legend svg,.ex-legend svg{display:inline-block;width:12px;height:12px;max-height:none;vertical-align:middle;margin:0 4px 0 0}
.ex-legend>span{display:inline-flex;align-items:center}
.bal-lab{border-top:1px solid #ded5d8;margin-top:14px;padding-top:6px}
.bal-table{border-collapse:collapse;font-size:.9rem;font-variant-numeric:tabular-nums;width:100%}
.bal-table caption{text-align:left;font-size:.86rem;color:var(--muted);margin-bottom:4px}
.bal-table th,.bal-table td{border-bottom:1px solid var(--line);padding:3px 6px;text-align:center}
.bal-table tfoot td,.bal-table tfoot th{font-weight:700;background:#f7f3f1}
.bal-eps{min-width:44px;min-height:32px!important;padding:2px 8px!important}
.bal-lab .matrix{font-size:.85rem}
svg .err-basic{fill:#efe9e4}
svg .err-refined{fill:#dce6f6}
svg .k-zero{fill:#857a7e}
svg .k-safe{fill:var(--teal)}
svg .k-hidden{fill:var(--wine)}
svg .pass-zone{fill:#eef5f1}
svg .avail-line{fill:none;stroke:var(--wine);stroke-width:3}
svg .need-line{fill:none;stroke:var(--teal);stroke-width:3;stroke-dasharray:7 4}
svg .h-line{stroke:var(--wine);stroke-width:1.5;stroke-dasharray:3 3}
svg .b-line{stroke:var(--blue);stroke-width:2}
svg .avail-dot{fill:var(--wine)}
svg .need-dot{fill:var(--teal)}
svg .window-zone{fill:#f1eef8}
svg .band-zone{fill:#e8f2ed}
svg .walk-line{fill:none;stroke:#b9aeb0;stroke-width:1.6}
svg .cand-pass{fill:var(--teal)}
svg .cand-fail{fill:var(--wine)}
svg .cand-invalid{fill:white;stroke:#857a7e;stroke-width:1.6}
.layer-table{border-collapse:collapse;font-size:.9rem;width:100%;margin-top:8px;font-variant-numeric:tabular-nums}
.layer-table th,.layer-table td{border-bottom:1px solid var(--line);padding:4px 6px;text-align:left}
.layer-table tfoot td,.layer-table tfoot th{font-weight:700}
.slots{display:inline-flex;flex-wrap:wrap;gap:2px;vertical-align:middle;max-width:240px}
.slots i{display:inline-block;width:11px;height:11px;border:1px solid var(--wine);background:white}
.slots i.used{background:var(--wine)}
svg .ladder-muted{fill:#9a8f93}
svg .ladder-wine{fill:var(--wine)}
svg .ladder-teal{fill:var(--teal)}
svg .ladder-blue{fill:var(--blue)}
svg .forest-edge{fill:none;stroke:#8f8589;stroke-width:2.5}
svg .forest-leaf{fill:none;stroke:var(--teal);stroke-width:3}
svg .forest-sel{fill:none;stroke:var(--blue);stroke-width:4}
svg .forest-gone{fill:none;stroke:#ddd5d5;stroke-width:2;stroke-dasharray:3 4}
.forest-line{display:block;width:100%;height:auto;max-height:260px}
svg .rec-done{fill:var(--teal)}
svg .rec-todo{fill:#e7e0dd}
.figure svg.fit text.tiny,.lab svg.fit text.tiny{font-size:12px}
.figure svg.fit text.small,.lab svg.fit text.small{font-size:13px}
.figure svg.fit text.label{font-size:15px}
.svg-title{font-size:.88rem;color:#4f474a;margin:8px 0 2px}
.data-source{overflow-wrap:anywhere}
.data-card{overflow-wrap:anywhere}
.scroll-hint{display:none}
@media(max-width:650px){.scroll-hint{display:block;margin:2px 0}}
@media(min-width:1000px){.ct-roadmap{grid-template-columns:repeat(4,minmax(0,1fr))}}
/* Drawn labels grow with the preferred text size (--svg-text is 1 at the default size). */
svg text.tiny{font-size:calc(12px*var(--svg-text,1))}
svg text.small{font-size:calc(14px*var(--svg-text,1))}
svg text.label{font-size:calc(17px*var(--svg-text,1))}
@media(max-width:650px){.figure svg text.small{font-size:calc(18px*var(--svg-text,1))}.figure svg text.tiny{font-size:calc(16px*var(--svg-text,1))}}
.figure svg.fit text.tiny,.lab svg.fit text.tiny{font-size:calc(12px*var(--svg-text,1))}
.figure svg.fit text.small,.lab svg.fit text.small{font-size:calc(13px*var(--svg-text,1))}
.figure svg.fit text.label{font-size:calc(15px*var(--svg-text,1))}
.linked-graph .jg-name{font-size:calc(22px*min(var(--svg-text,1),1.3))}
.linked-graph .jg-name-muted{font-size:calc(19px*min(var(--svg-text,1),1.3))}
.linked-graph .jg-number{font-size:calc(19px*min(var(--svg-text,1),1.3))}
.linked-graph .jg-edge-label{font-size:calc(15px*min(var(--svg-text,1),1.3))}
.linked-graph .jg-pair-label{font-size:calc(16.5px*min(var(--svg-text,1),1.3))}
.linked-histogram .jh-axis-title,.linked-histogram .jh-tick,.linked-histogram .jh-count{font-size:calc(15px*min(var(--svg-text,1),1.3))}
.linked-histogram .jh-distance{font-size:calc(18px*min(var(--svg-text,1),1.3))}
.linked-histogram .jh-count.jh-zero{font-size:calc(13px*min(var(--svg-text,1),1.3))}
/* A refused move is explained beside the result, where the learner is looking. */
.lab-outcome p.error{margin:8px 0 0;padding:9px 10px;border:0;border-left:3px solid var(--wine);background:#fceced;color:var(--wine);font-size:.95rem;line-height:1.35}
/* Read-only matrices (flows, realizations) fit a 390 px phone without sideways scrolling up to ten columns. */
@media(max-width:480px){.lab-figure .matrix:has(button:disabled){border-spacing:1px}.lab-figure .matrix button:disabled{min-width:23px;min-height:27px;padding:1px;font-size:.8125rem}.lab-figure .matrix:has(button:disabled) .margin{padding:2px 1px}.lab-figure .matrix:has(button:disabled) thead th:first-child{font-size:.6875rem;max-width:40px;white-space:normal;line-height:1.1}}
/* Count labels stay legible where they meet a neighbouring bar. */
svg text.hist-count-label{paint-order:stroke;stroke:#fff;stroke-width:3px;stroke-linejoin:round}