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.cell.user{color:#000}.print-grid-fig{break-inside:avoid}a{color:#000;text-decoration:none}@page{margin:14mm}}#solver{padding:8px 0 4px}.solver-tools{display:flex;gap:6px;width:min(94vw,460px);margin:0 auto 12px}.solver-tools .tool{flex:1;flex-direction:row;gap:6px;padding:11px 6px}.solver-tools .tool.solve{background:var(--ink-blue);color:var(--paper-3);border-color:var(--ink-blue)}[data-theme=dark] .solver-tools .tool.solve{color:var(--paper)}.solver-tools .tool.solve .k{color:var(--mark)}.solver-board{width:min(94vw,460px);margin:0 auto}.solver-board .cell{padding:0}.solver-board input{width:100%;height:100%;border:none;background:transparent;text-align:center;font-family:var(--mono);font-size:clamp(18px,5.2vw,25px);color:var(--ink-blue);font-weight:500;padding:0;border-radius:0;-moz-appearance:textfield}.solver-board input:focus{outline:none;background:var(--mark-strong);box-shadow:inset 0 0 0 2px var(--mark)}.solver-board .cell.bad{background:var(--bad-wash)}.solver-board .cell.bad input{color:var(--bad)}.solver-board .cell.given{color:var(--ink)}.solver-board .cell.mk-pattern{box-shadow:inset 0 0 0 2px var(--ink-blue);background:var(--peer)}.solver-board .cell.mk-elim{background:var(--bad-wash);box-shadow:inset 0 0 0 1.5px var(--bad)}.solver-board .cell.mk-place{background:var(--mark-strong);box-shadow:inset 0 0 0 2px var(--mark)}.solver-board .notes span{font-size:clamp(6px,1.9vw,9px);color:var(--graphite)}.solver-board .notes span.foc{color:var(--ink-blue);font-weight:700}.solver-board .cell.mk-elim .notes span.foc{color:var(--bad);text-decoration:line-through}.solver-scrub{display:flex;align-items:center;justify-content:space-between;width:min(94vw,460px);margin:12px auto 0;font-family:var(--mono)}.s-count{font-size:12.5px;color:var(--label);font-variant-numeric:tabular-nums}.paste{width:min(94vw,460px);margin:16px auto 0;font-family:var(--mono)}.paste summary{font-size:12.5px;color:var(--ink-blue);cursor:pointer;padding:6px 0}.paste-help{font-size:12px;color:var(--label);margin:4px 0 8px;line-height:1.5}.paste textarea{width:100%;font-family:var(--mono);font-size:13px;background:var(--paper-3);color:var(--ink);border:1px solid var(--rule);border-radius:4px;padding:8px;resize:vertical}.paste textarea:focus{outline:none;border-color:var(--ink-blue)}.paste .tool{margin-top:8px;flex-direction:row;gap:6px;display:inline-flex}.solve-log{list-style:none;counter-reset:none;width:min(94vw,460px);margin:18px auto 0;padding:0;max-height:360px;overflow-y:auto;border:1px solid var(--rule);border-radius:4px}.solve-log li{display:flex;gap:8px;align-items:baseline;padding:9px 12px;border-bottom:1px solid var(--rule-soft);font-family:var(--mono);font-size:12.5px;cursor:pointer}.solve-log li:last-child{border-bottom:none}.solve-log li[data-k]:hover{background:var(--peer)}.solve-log li.cur{background:var(--mark-wash)}.solve-log .log-summary{cursor:default;background:var(--paper-2);color:var(--ink);font-weight:500}.solve-log .log-summary:hover{background:var(--paper-2)}.lg-n{color:var(--label);min-width:22px;text-align:right;font-variant-numeric:tabular-nums}.lg-badge{color:var(--paper-3);background:var(--ink-blue);padding:1px 7px;border-radius:99px;font-size:11px;white-space:nowrap}[data-theme=dark] .lg-badge{color:var(--paper)}.lg-reason{color:var(--label);line-height:1.45}.demo{margin:20px auto;max-width:360px}.demo-board{width:min(88vw,360px);cursor:default;box-shadow:0 10px 26px -20px #1b233080}.demo-board .cell{cursor:default;font-size:clamp(15px,4.4vw,20px)}.demo-board .cell.mk-pattern{box-shadow:inset 0 0 0 2px var(--ink-blue);background:var(--peer)}.demo-board .cell.mk-elim{background:var(--bad-wash);box-shadow:inset 0 0 0 1.5px var(--bad)}.demo-board .cell.mk-place{background:var(--mark-strong);box-shadow:inset 0 0 0 2px var(--mark)}.demo-board .notes span{font-size:clamp(6px,1.9vw,9px);color:var(--graphite)}.demo-board .notes span.foc{color:var(--ink-blue);font-weight:700}.demo-board .cell.mk-elim .notes span.foc{color:var(--bad);text-decoration:line-through}.demo-board .cell.mk-place .notes span.foc{color:var(--ink-blue-deep)}.demo figcaption{font-family:var(--mono);font-size:12px;line-height:1.55;color:var(--label);margin-top:10px;text-align:left;border-left:2px solid var(--mark);padding-left:10px}.demo figcaption b{color:var(--ink-blue)}.demo-legend{display:flex;flex-wrap:wrap;gap:14px;margin:6px 0 0;font-family:var(--mono);font-size:11px;color:var(--label);list-style:none;padding:0}.demo-legend li{display:flex;align-items:center;gap:6px}.demo-legend .sw{width:14px;height:14px;border-radius:2px;display:inline-block}.demo-legend .sw-pattern{box-shadow:inset 0 0 0 2px var(--ink-blue);background:var(--peer)}.demo-legend .sw-elim{background:var(--bad-wash);box-shadow:inset 0 0 0 1.5px var(--bad)}.demo-legend .sw-place{background:var(--mark-strong);box-shadow:inset 0 0 0 2px var(--mark)}.prose{padding:8px 0 4px}.prose h2{font-family:var(--display);font-weight:600;font-size:clamp(22px,5.5vw,28px);line-height:1.12;letter-spacing:-.015em;margin:26px 0 10px}.prose h2 .b{color:var(--ink-blue)}.prose h3{font-family:var(--display);font-weight:600;font-size:20px;margin:22px 0 8px}.prose p{color:#39424e;margin:0 0 12px}[data-theme=dark] .prose p{color:#b9c0cb}.prose p b{color:var(--ink);font-weight:600}.prose .tip{font-family:var(--mono);font-size:13px;color:var(--ink-blue);border-left:2px solid var(--mark);padding-left:12px}.tech-chips{list-style:none;padding:0;margin:10px 0 6px;display:flex;flex-wrap:wrap;gap:8px}.tech-chips a{display:inline-block;font-family:var(--mono);font-size:12.5px;padding:6px 12px;background:var(--paper-2);border:1px solid var(--rule);border-radius:99px;text-decoration:none;color:var(--ink-blue);transition:border-color .12s}.tech-chips a:hover{border-color:var(--ink-blue)}.count{font-family:var(--mono);font-size:15px;font-weight:400;color:var(--label)}.band-blurb{font-family:var(--mono);font-size:12.5px;color:var(--label);margin:0 0 10px}.puzzle-grid{list-style:none;padding:0;margin:6px 0 18px;display:grid;grid-template-columns:repeat(auto-fill,minmax(46px,1fr));gap:6px}.puzzle-grid a{display:flex;align-items:center;justify-content:center;aspect-ratio:1;font-family:var(--mono);font-size:14px;font-variant-numeric:tabular-nums;background:var(--paper-2);border:1px solid var(--rule);border-radius:4px;text-decoration:none;color:var(--ink);transition:border-color .12s,background .12s}.puzzle-grid a:hover{border-color:var(--ink-blue);background:var(--mark-wash)}.crumb{font-family:var(--mono);font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:var(--label);margin-bottom:6px}.crumb a{color:var(--ink-blue);text-decoration:none}.crumb span{margin:0 4px;color:var(--rule)}.tech-list{list-style:none;padding:0;margin:6px 0 22px;display:grid;gap:8px}.tech-list a{display:block;padding:14px 16px;background:var(--paper-2);border:1px solid var(--rule);border-radius:4px;text-decoration:none;transition:border-color .12s,transform .08s}.tech-list a:hover{border-color:var(--ink-blue)}.tl-name{display:block;font-family:var(--display);font-weight:600;font-size:18px;color:var(--ink)}.tl-tag{display:block;font-size:14px;color:var(--label);margin-top:2px}[data-theme=dark] .tl-tag{color:var(--graphite)}.practice{margin:28px 0 8px;padding-top:20px;border-top:1px solid var(--rule)}.practice-list{list-style:none;padding:0;margin:12px 0 0;display:grid;gap:8px}.practice-list a{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;padding:12px 14px;background:var(--paper-2);border:1px solid var(--rule);border-radius:4px;text-decoration:none;font-family:var(--mono);transition:border-color .12s}.practice-list a:hover{border-color:var(--ink-blue)}.pl-band{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--paper-3);background:var(--ink-blue);padding:2px 8px;border-radius:99px}[data-theme=dark] .pl-band{color:var(--paper)}.pl-id{font-size:14px;color:var(--ink);font-weight:500}.pl-meta{font-size:12px;color:var(--label);margin-left:auto}.guide-nav{display:flex;gap:8px;margin:26px 0 10px}.gn{flex:1;display:flex;flex-direction:column;gap:3px;padding:12px 14px;background:var(--paper-2);border:1px solid var(--rule);border-radius:4px;text-decoration:none;transition:border-color .12s}.gn.empty{background:none;border:none}.gn:hover{border-color:var(--ink-blue)}.gn.next{text-align:right}.gn-k{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--label)}.gn-t{font-family:var(--display);font-weight:600;font-size:15px;color:var(--ink-blue)}.cluster{margin-top:40px;padding-top:26px;border-top:1px solid var(--rule)}.cluster .eyebrow{display:block;margin-bottom:8px}.cluster h2{font-family:var(--display);font-weight:600;font-size:clamp(24px,6.5vw,30px);line-height:1.1;letter-spacing:-.015em;margin:0 0 6px}.cluster h2 .b{color:var(--ink-blue)}.cluster .sub{color:#39424e;font-size:16px;margin:0 0 16px}[data-theme=dark] .cluster .sub{color:#b9c0cb}.faq{margin-top:40px;padding-top:26px}.faq .eyebrow{margin-bottom:8px;display:block}.faq h2{font-family:var(--display);font-weight:600;font-size:clamp(24px,6.5vw,30px);line-height:1.1;letter-spacing:-.015em;margin:0 0 6px}.faq h2 .b{color:var(--ink-blue)}.faq .sub{color:#39424e;font-size:16px;margin:0 0 18px}[data-theme=dark] .faq .sub{color:#b9c0cb}details summary{list-style:none;cursor:pointer;padding:15px 30px 15px 0;position:relative;font-family:var(--display);font-size:18px;font-weight:600;color:var(--ink)}details summary::-webkit-details-marker{display:none}details summary:after{content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);font-family:var(--mono);font-size:20px;color:var(--ink-blue)}details[open] summary:after{content:"–"}details .a{padding:0 2px 18px;color:#39424e;font-size:16px}[data-theme=dark] details .a{color:#b9c0cb}details .a p{margin:0 0 10px}details .a p:last-child{margin-bottom:0}details .a b{color:var(--ink);font-weight:600}.center{max-width:520px;margin:0 auto;padding:60px 18px;text-align:center}.center h1{font-size:clamp(28px,8vw,40px)}.center p{color:#39424e}[data-theme=dark] .center p{color:#b9c0cb}footer{margin-top:44px;padding:26px 0 40px;border-top:1px solid var(--rule)}.foot-grid{display:flex;flex-wrap:wrap;gap:26px 40px;margin-bottom:22px}.foot-col{display:flex;flex-direction:column;gap:7px}.foot-h{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-blue);margin-bottom:2px}.foot-col a{font-family:var(--body);font-size:14px;color:var(--label);text-decoration:none}.foot-col a:hover{color:var(--ink-blue)}.foot-in{display:flex;justify-content:space-between;align-items:center;gap:12px;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--label);flex-wrap:wrap;padding-top:18px;border-top:1px solid var(--rule-soft)}.foot-in a{color:var(--label);text-decoration:none}.foot-in a:hover{color:var(--ink-blue)}footer .logo{font-size:15px}@media(min-width:560px){body{font-size:19px}.digits{gap:8px}.board{border-width:3px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}