/* R7.2 Knowledge Intelligence and Decision Labs. Loaded on Knowledge pages after cases.css (which defines
   --brass-ink); phone layout lives in mobile.css. One accent, radius 4px, no shadows. Small brass text uses
   --brass-ink and sits on --bg or --bg-2 only, so it stays above 4.5:1 in both themes. */

/* ---------- index ---------- */
.art-domain{font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:-4px 0 10px}
.art-badges span.is-lab{color:var(--brass-ink);border-color:var(--line-2);display:inline-flex;align-items:center;gap:6px}
.art-badges span.is-lab::before{content:"";width:6px;height:6px;border:1.5px solid currentColor;transform:rotate(45deg)}
.kb-labs{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);gap:24px;border-top:1px solid var(--line-2);padding:clamp(28px,3.4vw,44px) 0}
.kb-labs .chapter-meta .num{color:var(--brass-ink)}
.kb-labs h2{font-size:clamp(1.5rem,2.4vw,2.1rem);margin-bottom:8px}
.kb-labs .lead{font-size:1rem;margin-bottom:14px;max-width:62ch}
.dl-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:clamp(24px,4vw,56px)}
.dl-list a{display:grid;grid-template-columns:auto minmax(0,1fr);column-gap:14px;padding:16px 0 18px;border-top:1px solid var(--line);text-decoration:none;height:100%;align-content:start}
.dl-n{grid-row:1 / span 3;font-family:var(--mono);font-size:.74rem;color:var(--brass-ink);padding-top:3px}
.dl-t{font-size:1.08rem;font-weight:600}
.dl-q{color:var(--muted);font-size:.94rem;line-height:1.45;margin-top:4px}
.dl-c{font-family:var(--mono);font-size:.68rem;letter-spacing:.04em;color:var(--muted);margin-top:8px}
.dl-list a:hover .dl-t{text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--accent)}

/* ---------- article header ---------- */
.kx-head{padding-bottom:26px}
.kx-head h1{max-width:20ch}
.kx-thesis{max-width:60ch}
.kx-meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 0;margin:0;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.kx-meta > span + span::before{content:"\00b7";margin:0 10px;color:var(--dim)}
.kx-lab-flag{display:inline-flex;align-items:center;gap:8px;color:var(--brass-ink);text-decoration:none;border-bottom:1px solid transparent}
.kx-lab-flag::before{content:"";width:7px;height:7px;border:1.5px solid currentColor;transform:rotate(45deg)}
.kx-lab-flag:hover{border-bottom-color:currentColor}
.kx-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:0 0 clamp(36px,4vw,56px);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line)}
.kx-strip li{position:relative;padding:16px 26px 18px 0}
.kx-strip li + li{padding-left:26px;border-left:1px solid var(--line)}
.kx-strip li + li::before{content:"";position:absolute;left:-5px;top:21px;width:8px;height:8px;border-top:1px solid var(--line-2);border-right:1px solid var(--line-2);transform:rotate(45deg);background:var(--bg)}
.kx-sk{display:block;font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--brass-ink);margin-bottom:6px}
.kx-st{display:block;font-size:.95rem;line-height:1.45;color:var(--text)}

/* ---------- modules ---------- */
.kx-main{max-width:70ch}
.kx-mod{padding:0 0 clamp(40px,4.4vw,60px)}
.kx-mod + .kx-mod{border-top:1px solid var(--line);padding-top:clamp(28px,3vw,40px)}
.kx-h{display:flex;align-items:baseline;gap:12px;font-family:var(--mono);font-size:.74rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 20px}
.kx-h span{color:var(--brass-ink)}
.kx-lead{font-size:clamp(1.42rem,2.1vw,1.86rem);line-height:1.28;letter-spacing:-.015em;font-weight:400;margin:0 0 18px;max-width:30ch}
.kx-p{color:var(--muted);font-size:1.04rem;line-height:1.68;margin:0 0 1em}
.kx-rule .kx-lead{max-width:34ch}
.kx-rule .kx-lead::before{content:"";display:block;width:36px;height:2px;background:var(--accent);margin-bottom:18px}
.kx-judge{border-left:2px solid var(--accent);padding-left:clamp(18px,2vw,26px)}
.kx-sig{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:28px}
.kx-sig div{border-top:1px solid var(--line);padding:12px 0 14px}
.kx-sig dt{font-weight:600;font-size:.98rem;margin-bottom:2px}
.kx-sig dd{color:var(--muted);font-size:.92rem;line-height:1.45}
.kx-logic{margin:0 0 28px}
.kx-logic figcaption{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.kx-chain{position:relative;margin:0;padding:0}
.kx-chain::before{content:"";position:absolute;left:13px;top:14px;bottom:18px;width:1px;background:var(--line-2)}
.kx-chain li{position:relative;display:grid;grid-template-columns:28px minmax(0,1fr);column-gap:16px;padding:0 0 14px}
.kx-cn{grid-row:1 / span 2;position:relative;z-index:1;width:28px;height:28px;display:grid;place-items:center;font-family:var(--mono);font-size:.66rem;color:var(--muted);background:var(--bg);border:1px solid var(--line-2);border-radius:50%}
.kx-chain strong{font-size:1rem;font-weight:600;line-height:1.35;padding-top:3px}
.kx-ct{color:var(--muted);font-size:.92rem;line-height:1.45}
.kx-chain li.is-last .kx-cn{border-radius:2px;border-color:var(--accent);color:var(--brass-ink)}
.kx-example{border-left:1px dashed var(--line-2);padding-left:clamp(18px,2vw,26px)}
.kx-ill{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 10px}
.kx-ill::before{content:"";width:8px;height:8px;border:1.5px dashed currentColor}
.kx-ex-t{font-size:1.24rem;margin:0 0 14px}
.kx-fm{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:28px}
.kx-fm li{border-top:1px solid var(--line);padding:14px 0 16px}
.kx-fm h3{font-size:1rem;font-weight:600;margin:0 0 4px;line-height:1.35}
.kx-fm-c{color:var(--muted);font-size:.93rem;line-height:1.45;margin:0 0 6px}
.kx-fm-k{font-size:.92rem;line-height:1.45;margin:0}
.kx-fm-k span{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--brass-ink);margin-right:8px}
.kx-note{margin:0;padding-top:20px}
.kx-note::before{content:"";position:absolute;left:22px;top:-5px;width:9px;height:9px;border:1.5px solid var(--accent);background:var(--bg)}
.prose .kx-note .kx-note-t{font-size:1.18rem;line-height:1.55;margin-bottom:12px}
.prose .kx-note .kx-note-by{font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-top:-4px}
.kx-check{counter-reset:none}
.kx-check li{position:relative;padding:11px 0 11px 34px;border-top:1px solid var(--line);font-size:1rem;line-height:1.45}
.kx-check li::before{content:"";position:absolute;left:2px;top:14px;width:15px;height:15px;border:1.5px solid var(--line-2);border-radius:2px}
.kx-check li:last-child{border-bottom:1px solid var(--line)}

/* ---------- after the reading column: lab, connections, evidence ---------- */
.kx-after{display:grid;gap:clamp(48px,5vw,72px);margin-top:clamp(24px,3vw,40px)}
.kx-ci,.kx-basis-sec{margin-left:calc(230px + clamp(28px,5vw,80px));max-width:72ch}
.kx-ci{max-width:none}
.kx-ci{border-top:1px solid var(--line);padding-top:clamp(28px,3vw,40px)}
.kx-ci .ci-dot{background:var(--bg)}
.kx-ci .ci-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.ci-sub{font-size:.84rem;color:var(--muted);margin:-6px 0 10px}
.ci-cls{display:block;font-family:var(--mono);font-size:.64rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-top:2px}
.kx-basis-sec{border-top:1px solid var(--line);padding-top:clamp(28px,3vw,40px)}
.kx-basis-sec .prose{font-size:.98rem;color:var(--muted)}
.kx-basis{margin:0 0 1.2em}
.kx-basis-sec .sources h3{font-family:var(--mono);font-size:.7rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:1.4em 0 .8em}
.kx-foot{margin:clamp(40px,4vw,56px) 0 0 calc(230px + clamp(28px,5vw,80px));max-width:72ch}
.kx-tags{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 12px}
.kx-dates{color:var(--muted);margin:0}
.kx-lab-try{display:flex;align-items:baseline;gap:12px;font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.kx-lab-try span{color:var(--brass-ink)}

/* ---------- Decision Lab ---------- */
.lab{border:1px solid var(--line-2);border-radius:var(--r);background:var(--bg-2);scroll-margin-top:calc(var(--top-h) + 20px)}
.lab-head{padding:clamp(22px,3vw,40px) clamp(20px,3vw,40px) clamp(18px,2vw,26px);border-bottom:1px solid var(--line)}
.lab-eyebrow{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brass-ink);margin:0 0 12px}
.lab-mark{width:9px;height:9px;border:1.5px solid currentColor;transform:rotate(45deg)}
.lab-title{font-size:clamp(1.5rem,2.4vw,2.1rem);letter-spacing:-.02em;line-height:1.12;margin:0 0 10px}
h1.lab-title{font-size:clamp(2rem,3.6vw,3rem)}
.lab-q{font-size:clamp(1.08rem,1.4vw,1.24rem);line-height:1.45;max-width:56ch;margin:0 0 10px}
.lab-intro{color:var(--muted);font-size:.92rem;max-width:66ch;margin:0}
.lab-steps{margin:0;padding:0}
.lab-step{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);gap:20px clamp(20px,3vw,40px);padding:clamp(20px,2.4vw,30px) clamp(20px,3vw,40px);border-bottom:1px solid var(--line)}
.lab-k{display:flex;align-items:baseline;gap:10px;font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0}
.lab-k span{color:var(--brass-ink)}
.lab-body{min-width:0}
.lab-ill{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.lab-ill::before{content:"";width:7px;height:7px;border:1.5px dashed currentColor}
.lab-situation{font-size:1.02rem;line-height:1.62;max-width:66ch;margin:0}
.lab-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0 24px;margin-top:16px}
.lab-facts div{border-top:1px solid var(--line);padding:10px 0}
.lab-facts dt{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:2px}
.lab-facts dd{font-size:.94rem;line-height:1.4}
.lab-tool{margin-bottom:22px;font-size:1rem}
.lab .tool.is-nested{margin:0;border:0;background:none;padding:0}
.lab .tool.is-nested .tool-lead{margin-bottom:14px}
.lab .tool.is-nested .tool-input em{background:var(--bg)}
.lab-form{display:grid;gap:18px}
.lab-form[hidden],.lab-decide[hidden],.lab-static[hidden]{display:none}
.lab-form > .tool-field{max-width:420px}
.lab-form .tool-input input{flex:1;min-width:0}
.lab-sig{border:0;margin:0;padding:0;min-width:0}
.lab-sig legend{font-size:.92rem;font-weight:600;margin-bottom:8px;padding:0}
.lab-opts{display:flex;flex-wrap:wrap;gap:8px}
.lab-opt,.lab-dec{position:relative;display:flex;cursor:pointer}
.lab-opt input,.lab-dec input{position:absolute;opacity:0;width:1px;height:1px;margin:0}
.lab-opt span{display:flex;align-items:center;min-height:40px;padding:8px 13px;border:1px solid var(--line-2);border-radius:var(--r);font-size:.88rem;line-height:1.3;color:var(--muted);background:var(--bg);transition:border-color .15s,color .15s}
.lab-opt:hover span{color:var(--text);border-color:var(--text)}
.lab-opt input:checked + span{color:var(--text);border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}
.lab-opt input:focus-visible + span,.lab-dec input:focus-visible + span{outline:2px solid var(--accent);outline-offset:2px}
.lab-decs{border:0;margin:0 0 16px;padding:0;display:grid;gap:8px;max-width:560px}
.lab-dec span{display:flex;align-items:center;gap:12px;width:100%;min-height:46px;padding:10px 14px;border:1px solid var(--line-2);border-radius:var(--r);font-size:.96rem;line-height:1.35;background:var(--bg);transition:border-color .15s}
.lab-dec span::before{content:"";flex:none;width:14px;height:14px;border:1.5px solid var(--line-2);border-radius:50%}
.lab-dec:hover span{border-color:var(--text)}
.lab-dec input:checked + span{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}
.lab-dec input:checked + span::before{border-color:var(--accent);background:radial-gradient(circle,var(--accent) 0 3.5px,transparent 4px)}
.lab-go{min-height:44px}
.lab-static{display:grid;gap:0;max-width:66ch}
.lab-static li{border-top:1px solid var(--line);padding:9px 0;font-size:.94rem;line-height:1.45;color:var(--muted)}
.lab-static .lab-sl{display:block;color:var(--text);font-weight:600}
.lab-static strong{color:var(--text);font-weight:600}
.lab-wait{color:var(--muted);font-size:.94rem;margin:0}
.lab-step-review .lab-body{min-height:60px}

/* review: the result is read from the text and the shape of the mark, never from colour alone */
.lab-review{border-top:2px solid var(--line-2);padding-top:16px}
.lab-review.is-supported{border-top-color:var(--accent)}
.lr-status{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 16px;margin-bottom:14px}
.lr-badge{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:.78rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--text);margin:0}
.lr-shape{width:11px;height:11px;flex:none;border:1.5px solid var(--text)}
.is-supported .lr-shape{background:var(--accent);border-color:var(--accent)}
.is-conditional .lr-shape{background:linear-gradient(90deg,var(--text) 50%,transparent 50%)}
.is-insufficient .lr-shape{border-style:dashed;border-radius:50%}
.is-escalation .lr-shape{transform:rotate(45deg) scale(.9)}
.is-not_supported .lr-shape{background:linear-gradient(45deg,transparent 45%,var(--text) 45%,var(--text) 55%,transparent 55%)}
.lr-expl{color:var(--muted);font-size:.92rem;margin:0}
.lr-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px;margin:0 0 14px}
.lr-pair div{border-top:1px solid var(--line);padding:10px 0}
.lr-pair dt{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:3px}
.lr-pair dd{font-size:1rem;font-weight:600;line-height:1.35}
.lr-pair .is-pos dd{color:var(--text)}
.lr-block{border-top:1px solid var(--line);padding:12px 0 4px}
.lr-h{font-family:var(--mono);font-size:.66rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 6px}
.lr-block p{font-size:.98rem;line-height:1.55;max-width:68ch;margin:0 0 8px}
.lr-read li{position:relative;padding-left:16px;font-size:.94rem;line-height:1.5;margin-bottom:4px;color:var(--text)}
.lr-read li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:1px;background:var(--muted)}
.lr-next p{font-weight:600}
.lr-next .lr-h{color:var(--brass-ink)}
.lr-why{font-family:var(--mono);font-size:.7rem;letter-spacing:.04em;color:var(--muted);margin:12px 0 0;border-top:1px dashed var(--line);padding-top:10px}
.lr-why a{color:var(--text);text-underline-offset:3px}
.lr-invalid{font-size:.98rem;margin:0;border-left:2px dashed var(--text);padding-left:12px}
.lab-rules{padding:16px clamp(20px,3vw,40px) 20px;border-bottom:1px solid var(--line)}
.lab-rules summary{cursor:pointer;font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text);min-height:32px;display:flex;align-items:center}
.lab-rules-lead{color:var(--muted);font-size:.88rem;max-width:72ch;margin:10px 0 12px}
.lab-rules ol{margin:0;padding:0;counter-reset:rule}
.lab-rules li{counter-increment:rule;position:relative;border-top:1px solid var(--line);padding:12px 0 12px 44px;scroll-margin-top:calc(var(--top-h) + 20px)}
.lab-rules li::before{content:counter(rule,decimal-leading-zero);position:absolute;left:0;top:13px;font-family:var(--mono);font-size:.7rem;color:var(--muted)}
.lab-rules li.is-applied{box-shadow:inset 2px 0 0 var(--accent)}
.lab-rules li.is-applied::before{color:var(--brass-ink);left:12px}
.lab-rules p{margin:0 0 3px;font-size:.9rem;line-height:1.45}
.lab-rules p span{font-family:var(--mono);font-size:.62rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-right:8px}
.lr-if{color:var(--text)}
.lr-then strong{font-weight:600}
.lr-also,.lr-other{color:var(--muted)}
.lr-text{color:var(--muted);margin-top:4px !important}
.lab-note{font-size:.8rem;line-height:1.55;color:var(--muted);padding:14px clamp(20px,3vw,40px) 18px;margin:0}

.kx-labpage .lab{margin-top:28px}
.kx-labpage .kx-ci{margin-left:0}
.kx-labpage .lang-note{margin-top:16px}

@media (max-width:1180px){
  .kx-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .kx-strip li:nth-child(3){border-left:0;padding-left:0;border-top:1px solid var(--line)}
  .kx-strip li:nth-child(4){border-top:1px solid var(--line)}
  .kx-strip li:nth-child(3)::before{display:none}
}
@media (max-width:980px){
  .kx-ci,.kx-basis-sec,.kx-foot{margin-left:0}
  .lab-step{grid-template-columns:1fr;gap:10px}
  .kb-labs{grid-template-columns:1fr}
  .dl-list{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){.lab-opt span,.lab-dec span{transition:none}}
@media print{.lab-form,.lab-decide,.lab-out,.lab-go{display:none !important}.lab-static{display:grid !important}}