/* Interactive grading labs and The Debrief. Dark grading-suite panels inside the
   light portal, using the portal's ink, paper and signature yellow. */
.lab{--lab-ink:#0b0b0c;--lab-panel:#141416;--lab-raise:#1d1d20;--lab-line:rgba(255,255,255,.09);--lab-text:#ececef;--lab-muted:#a9a9b0;--lab-yellow:#fdd000;background:var(--lab-panel);color:var(--lab-text);border-radius:18px;padding:18px;display:flex;flex-direction:column;gap:14px;margin:0 0 18px;box-shadow:0 18px 40px rgba(11,11,12,.16)}
.lab-head{display:flex;flex-direction:column;gap:4px}
.lab-kicker{font:600 11px/1.2 "JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--lab-yellow)}
.lab-title{margin:0;font-size:19px;line-height:1.25;font-weight:800;letter-spacing:-.01em;color:#fff}
.lab-prompt{margin:0;font-size:15px;line-height:1.5;color:var(--lab-muted)}
.lab-stage{display:block}
.lab-match-stage{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.lab-shot{margin:0;display:flex;flex-direction:column;gap:6px}
.lab-shot figcaption{font:600 11px/1.2 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--lab-muted)}
.lab-picture-wrap{position:relative;border-radius:12px;overflow:hidden;background:#000;line-height:0}
.lab-picture{width:100%;height:auto;aspect-ratio:16/9;display:block}
.lab-tag{position:absolute;left:10px;top:10px;font:600 11px/1 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.1em;padding:7px 9px;border-radius:6px;background:rgba(0,0,0,.62);color:#fff}
.lab-tag[hidden]{display:none}
.lab-overlay-actions{position:absolute;right:10px;bottom:10px;display:flex;gap:6px}
.lab-chip{min-height:36px;padding:0 12px;border-radius:9px;border:1px solid rgba(255,255,255,.18);background:rgba(11,11,12,.72);color:#fff;font:700 13px/1 inherit;cursor:pointer;backdrop-filter:blur(6px)}
.lab-chip[aria-pressed="true"]{background:var(--lab-yellow);color:var(--lab-ink);border-color:var(--lab-yellow)}
.lab-scope-panel{display:flex;flex-direction:column;gap:8px}
.lab-scope-tabs{display:flex;flex-wrap:wrap;gap:4px;padding:4px;background:var(--lab-raise);border-radius:11px;align-self:flex-start}
.lab-tab{min-height:36px;padding:0 12px;border:0;border-radius:8px;background:transparent;color:var(--lab-muted);font:700 13px/1 inherit;cursor:pointer}
.lab-tab[aria-pressed="true"]{background:#2c2c31;color:#fff}
.lab-tab-highlight[aria-pressed="true"]{background:var(--lab-yellow);color:var(--lab-ink)}
.lab-scopes{display:grid;grid-template-columns:minmax(0,1fr);gap:10px}
.lab-scopes-pair{grid-template-columns:repeat(2,minmax(0,1fr))}
.lab-scope-cell{position:relative}
.lab-scope-cap{position:absolute;left:8px;top:6px;font:600 10px/1 "JetBrains Mono",ui-monospace,monospace;color:var(--lab-muted)}
.lab-scope{width:100%;height:auto;aspect-ratio:9/5;display:block;border-radius:10px;background:#0a0d0c}
.lab-controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px 18px}
.lab-control{display:flex;flex-direction:column;gap:6px;min-width:0}
.lab-slider{display:grid;grid-template-columns:1fr auto;align-items:center;gap:6px 10px}
.lab-slider input{grid-column:1/-1;width:100%;accent-color:var(--lab-yellow);min-height:28px}
.lab-label{font-size:13px;font-weight:700;color:#d8d8dd}
.lab-value{font:600 12px/1 "JetBrains Mono",ui-monospace,monospace;color:var(--lab-yellow)}
.lab-modes{grid-column:1/-1}
.lab-seg{display:flex;flex-wrap:wrap;gap:4px;padding:4px;background:var(--lab-raise);border-radius:11px}
.lab-seg-btn{flex:1 1 auto;min-height:40px;padding:0 12px;border:0;border-radius:8px;background:transparent;color:#d4d4d8;font:700 13px/1.2 inherit;cursor:pointer}
.lab-seg-btn[aria-pressed="true"]{background:var(--lab-yellow);color:var(--lab-ink)}
.lab-toggle{flex-direction:row;align-items:center;gap:10px;font-size:14px;font-weight:600;min-height:40px;cursor:pointer}
.lab-toggle input{width:20px;height:20px;accent-color:var(--lab-yellow);margin:0}
.lab-readouts{display:flex;flex-wrap:wrap;gap:8px}
.lab-readouts:empty{display:none}
.lab-readout{display:flex;flex-direction:column;gap:3px;padding:10px 12px;border-radius:10px;background:var(--lab-raise);min-width:120px}
.lab-readout span{font:600 10px/1.2 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--lab-muted)}
.lab-readout strong{font-size:16px;color:#fff}
.lab-nits{min-width:160px}
.lab-meter{display:grid;grid-template-columns:auto auto 1fr;align-items:center;gap:12px;padding:12px 14px;border-radius:12px;background:var(--lab-raise);flex:1 1 100%}
.lab-meter-label{font:600 11px/1 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--lab-muted)}
.lab-meter strong{font-size:22px;color:#fff;min-width:56px}
.lab-meter-bar{display:block;height:8px;border-radius:4px;background:#2c2c31;overflow:hidden}
.lab-meter-bar i{display:block;height:100%;background:#7d7d85;border-radius:4px;transition:width .25s ease}
.lab-meter.pass strong{color:var(--lab-yellow)}
.lab-meter.pass .lab-meter-bar i,.lab-nits .lab-meter-bar i{background:var(--lab-yellow)}
.lab-nodes{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px;counter-reset:node}
.lab-node{display:flex;flex-direction:column;gap:4px;flex:1 1 120px;min-width:0}
.lab-node-toggle{display:flex;flex-direction:column;align-items:flex-start;gap:4px;width:100%;min-height:72px;padding:10px 12px;border-radius:12px;border:1.5px solid rgba(253,208,0,.6);background:#202024;color:#fff;cursor:pointer;text-align:left;font:inherit}
.lab-node.off .lab-node-toggle{border-color:var(--lab-line);background:transparent;color:var(--lab-muted)}
.lab-node-num{font:600 11px/1 "JetBrains Mono",ui-monospace,monospace;color:var(--lab-yellow)}
.lab-node.off .lab-node-num{color:var(--lab-muted)}
.lab-node-label{font-size:14px;font-weight:800;line-height:1.2}
.lab-node-state{font:600 10px/1 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--lab-muted)}
.lab-node-moves{display:flex;gap:4px}
.lab-node-move{flex:1;min-height:36px;border-radius:8px;border:1px solid var(--lab-line);background:transparent;color:#fff;font:700 14px/1 inherit;cursor:pointer}
.lab-node-move:disabled{opacity:.3;cursor:default}
.lab-note{margin:0;font-size:13px;line-height:1.5;color:var(--lab-muted)}
.lab button:focus-visible,.lab input:focus-visible{outline:3px solid var(--lab-yellow);outline-offset:2px}
@media (max-width:640px){.lab{padding:14px;border-radius:14px}.lab-match-stage,.lab-scopes-pair{grid-template-columns:minmax(0,1fr)}.lab-controls{grid-template-columns:minmax(0,1fr)}}
@media (prefers-reduced-motion:reduce){.lab-meter-bar i{transition:none}}

/* Answer review: why the trap was tempting */
.review-trap{margin:8px 0 0;padding:10px 12px;border-radius:10px;background:#fff6bf;color:#3d3100;font-size:15px;line-height:1.5}
.review-trap b{display:block;font-size:12px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:2px}
.review-debrief{display:inline-flex;margin-top:10px}

/* The Debrief */
.debrief-page{padding-bottom:96px}
.debrief-hero{background:#0b0b0c;color:#fff;border-radius:24px;padding:clamp(24px,5vw,48px);position:relative;overflow:hidden;margin:8px 0 24px}
.debrief-hero::after{content:"";position:absolute;right:-140px;top:-180px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(253,208,0,.22),rgba(253,208,0,0) 65%);pointer-events:none}
.debrief-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font:600 12px/1.2 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.12em;text-transform:uppercase;color:#a6a6ab;position:relative}
.debrief-meta b{color:#fdd000;font-weight:600}
.debrief-hero h1{position:relative;margin:16px 0 14px;font-size:clamp(34px,6.5vw,68px);line-height:.98;font-weight:900;letter-spacing:-.04em;max-width:820px}
.debrief-rule{position:relative;margin:0;font-size:clamp(17px,2.2vw,21px);line-height:1.45;color:#d4d4d8;max-width:660px}
.debrief-chips{position:relative;display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.debrief-chips span{font-size:13px;font-weight:600;padding:8px 13px;border-radius:999px;background:rgba(255,255,255,.09);color:#ececec}
.debrief-section{margin:0 0 40px}
.debrief-section>h2{margin:0 0 6px;font-size:clamp(24px,3.4vw,30px);font-weight:800;letter-spacing:-.02em}
.debrief-section>p.debrief-sub{margin:0 0 18px;font-size:17px;line-height:1.55;color:#4f4f54;max-width:680px}
.debrief-steps{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.debrief-steps li{flex:1 1 170px;min-width:0;background:#fff;border:1px solid rgba(11,11,12,.1);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:8px}
.debrief-steps .step-top{display:flex;justify-content:space-between;align-items:center;font:600 11px/1 "JetBrains Mono",ui-monospace,monospace;color:#69696f}
.debrief-steps .step-badge{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font:600 13px/1 "JetBrains Mono",ui-monospace,monospace;background:#fdd000;color:#0b0b0c}
.debrief-steps strong{font-size:17px;line-height:1.2}
.debrief-steps span.step-note{font-size:14px;line-height:1.45;color:#4f4f54}
.debrief-progress{font:600 13px/1 "JetBrains Mono",ui-monospace,monospace;padding:10px 14px;border-radius:10px;background:#fff;border:1px solid rgba(11,11,12,.1);display:inline-block;margin-bottom:16px}
.debrief-q{background:#fff;border:1px solid rgba(11,11,12,.1);border-radius:18px;padding:clamp(16px,3vw,24px);margin:0 0 14px;display:flex;flex-direction:column;gap:14px}
.debrief-q-head{display:flex;gap:14px;align-items:flex-start}
.debrief-q-num{flex-shrink:0;width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font:600 14px/1 "JetBrains Mono",ui-monospace,monospace;background:#0b0b0c;color:#fdd000}
.debrief-q-skill{display:block;font:600 11px/1.2 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.08em;text-transform:uppercase;color:#69696f;margin-bottom:4px}
.debrief-q h3{margin:0;font-size:19px;line-height:1.4}
.debrief-options{display:flex;flex-direction:column;gap:8px}
.debrief-option{display:flex;gap:12px;align-items:flex-start;width:100%;text-align:left;min-height:52px;padding:13px 14px;border-radius:12px;cursor:pointer;font:inherit;font-size:16px;line-height:1.45;background:#fff;border:1.5px solid rgba(11,11,12,.14);color:#0b0b0c;transition:background .2s ease,border-color .2s ease}
.debrief-option .mark{flex-shrink:0;width:22px;height:22px;margin-top:1px;border-radius:50%;border:1.5px solid rgba(11,11,12,.3);display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:900}
.debrief-option.right{background:#e7f4ec;border-color:#147a45;color:#0b3d22;font-weight:600}
.debrief-option.right .mark{background:#147a45;border-color:#147a45}
.debrief-option.wrong{background:#fdecea;border-color:#b42318;color:#5c130c}
.debrief-option.wrong .mark{background:#b42318;border-color:#b42318}
.debrief-option.dim{color:#69696f;border-color:rgba(11,11,12,.08)}
.debrief-feedback{display:flex;flex-direction:column;gap:8px;padding:16px;border-radius:12px;font-size:15px;line-height:1.55}
.debrief-feedback.good{background:#f2f9f4;color:#0b3d22}
.debrief-feedback.trap{background:#fff6bf;color:#3d3100}
.debrief-checklist{background:#fff;border:1px solid rgba(11,11,12,.1);border-radius:18px;padding:clamp(16px,3vw,24px)}
.debrief-checklist label{display:flex;gap:14px;align-items:flex-start;padding:12px 4px;font-size:16px;line-height:1.5;cursor:pointer;min-height:44px}
.debrief-checklist input{width:22px;height:22px;margin:2px 0 0;accent-color:#0b0b0c;flex-shrink:0}
.debrief-checklist input:checked+span{color:#69696f;text-decoration:line-through}
.debrief-trapcard{margin-top:14px;padding:14px 16px;border-radius:12px;background:#fff6bf;color:#3d3100;font-size:15px;line-height:1.5}
.debrief-trapcard b{display:block;font:600 11px/1.2 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.1em;margin-bottom:4px}
.debrief-next{background:#0b0b0c;color:#fff;border-radius:20px;padding:24px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.debrief-next span{display:block;font:600 11px/1 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.12em;color:#a6a6ab;margin-bottom:6px}
.debrief-next strong{font-size:20px;line-height:1.25}
.debrief-next .actions{display:flex;flex-wrap:wrap;gap:10px}
.debrief-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.debrief-card{display:flex;flex-direction:column;gap:10px;padding:18px;border-radius:16px;background:#fff;border:1px solid rgba(11,11,12,.1);text-decoration:none;color:#0b0b0c;min-height:150px}
.debrief-card:hover{border-color:#0b0b0c}
.debrief-card .when{font:600 11px/1.2 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.08em;text-transform:uppercase;color:#69696f}
.debrief-card strong{font-size:18px;line-height:1.25}
.debrief-card .state{margin-top:auto;font-size:13px;font-weight:700}
.debrief-card.locked{background:#f4f4f2;color:#69696f;cursor:default}
.debrief-card.locked .state{color:#69696f}
.debrief-card.open .state{color:#147a45}
@media print{.nav,.app-tabbar,.lab,.debrief-next,.debrief-checklist{display:none!important}.debrief-hero{background:#fff;color:#000;border:2px solid #000}.debrief-hero h1,.debrief-rule{color:#000}}
.app-tabbar{grid-template-columns:repeat(3,minmax(0,1fr))}
.field-card-page{padding-bottom:96px}
.field-card-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;margin:8px 0 16px}
.field-card{background:#fff;color:#0b0b0c;border-top:8px solid #fdd000;border-radius:6px;padding:40px 44px;max-width:816px;margin:0 auto;box-shadow:0 18px 40px rgba(11,11,12,.12);display:flex;flex-direction:column;gap:18px}
.field-card header,.field-card footer{display:flex;justify-content:space-between;gap:12px;font:600 12px/1.3 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.1em;color:#4f4f54}
.field-card header b{color:#0b0b0c}
.field-card footer{font-family:Inter,system-ui,sans-serif;letter-spacing:0;font-weight:500;border-top:1px solid #dcdcd8;padding-top:10px}
.field-card h1{margin:0;font-size:34px;line-height:1.06;font-weight:900;letter-spacing:-.03em}
.field-rule{margin:0;font-size:17px;line-height:1.5;color:#202023}
.field-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:8px}
.field-steps li{background:#f4f4f2;border:1px solid #dcdcd8;border-radius:10px;padding:10px;display:flex;flex-direction:column;gap:4px}
.field-steps b{width:22px;height:22px;border-radius:50%;background:#0b0b0c;color:#fdd000;display:flex;align-items:center;justify-content:center;font:600 11px/1 "JetBrains Mono",monospace}
.field-steps strong{font-size:14px;line-height:1.2}
.field-steps span{font-size:12px;line-height:1.35;color:#3a3a3e}
.field-cols{display:grid;grid-template-columns:1.6fr 1fr;gap:26px}
.field-cols h2{margin:0 0 10px;font:600 13px/1 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.12em;padding-bottom:8px;border-bottom:2px solid #0b0b0c}
.field-answer{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid #dcdcd8;break-inside:avoid}
.field-answer b{font:600 13px/1.4 "JetBrains Mono",monospace;flex-shrink:0;width:24px}
.field-answer span{display:block;font-size:12px;line-height:1.35;color:#3a3a3e;font-weight:600}
.field-answer strong{display:block;font-size:14px;line-height:1.4;font-weight:600}
.field-check{display:flex;gap:10px;align-items:flex-start;padding:6px 0;font-size:14px;line-height:1.45;break-inside:avoid}
.field-check i{flex-shrink:0;width:15px;height:15px;margin-top:3px;border:1.5px solid #0b0b0c;border-radius:4px}
.field-trap{margin-top:10px;padding:12px;border-radius:10px;background:#fff6bf;font-size:14px;line-height:1.45}
.field-trap b{display:block;font:600 11px/1.2 "JetBrains Mono",monospace;letter-spacing:.1em;margin-bottom:4px}
@media (max-width:700px){.field-card{padding:24px 20px}.field-cols{grid-template-columns:1fr}}
@media print{body{background:#fff!important}.field-card-actions{display:none!important}.field-card-page{padding:0}.field-card{box-shadow:none;max-width:none;padding:0 0 0;border-radius:0}.wrap{max-width:none!important;padding:0!important}}
.lab-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:14px;align-items:start}
.lab-grid .lab-scope-tabs{align-self:stretch}
@media (max-width:860px){.lab-grid{grid-template-columns:minmax(0,1fr)}}
.lab-scope{aspect-ratio:16/9}
@media print{.field-card{gap:12px}.field-card h1{font-size:28px}.field-rule{font-size:14px;line-height:1.45}.field-steps li{padding:8px}.field-steps span{font-size:11px}.field-answer{padding:6px 0}.field-answer span{font-size:11px}.field-answer strong{font-size:12.5px;line-height:1.35}.field-check{font-size:12.5px;padding:4px 0}.field-trap{font-size:12.5px;break-inside:avoid}.field-steps li,.field-answer,.field-check{break-inside:avoid}}
@media print{html,body,#app,.field-card-page{min-height:0!important;height:auto!important}.field-card-page{margin:0!important;padding:0!important}.field-card-page>.nav,.field-card-page>nav,.app-tabbar,.app-install{display:none!important}}