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/* Legible metadata and high-contrast active route squares in the light theme. */
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/* Hint-token Memory & Mind trials */
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/* Automatic Memory & Mind trial feedback */
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/* 50-puzzle expansion: matching, choice and coordinate-grille boards */
.match-grid{display:grid;gap:.7rem;margin-top:1rem}.match-grid label{display:grid;grid-template-columns:minmax(120px,.8fr) minmax(180px,1.2fr);gap:.8rem;align-items:center;padding:.7rem .8rem;background:#203e47;border:1px solid var(--line);border-radius:5px}.match-grid strong{color:var(--gold);font-weight:600}.match-grid select{width:100%;color:var(--ink);background:#10282f;border:1px solid #5b7277;border-radius:5px;padding:.65rem}.choice-list .claim{align-items:flex-start}.choice-list .claim b{min-width:1.25rem}.coordinate-code{display:grid;gap:.25rem;max-width:560px;margin:1rem auto;padding:1rem;background:#0e262e;border:1px solid var(--line);border-radius:6px;overflow-x:auto}.code-header,.code-row{display:grid;grid-template-columns:34px repeat(8,minmax(34px,1fr));gap:.25rem;min-width:390px}.code-header b,.code-row>b{display:grid;place-items:center;color:var(--gold);font-size:.82rem}.code-row span{display:grid;place-items:center;min-height:40px;border:1px solid #47616a;background:#17333b;font:1.1rem/1 monospace}.grille-holes{font-size:.86rem;color:var(--muted);line-height:1.9;overflow-wrap:anywhere}.beta-settings{background:#112a31;padding:1rem;border:1px solid var(--line);border-radius:6px;margin:.7rem 0}.beta-settings h3{font-size:1.2rem;margin-bottom:.5rem}.beta-settings p{color:var(--muted)}body.light .match-grid label,body.light .code-row span{background:#d5e2de}body.light .match-grid select{background:#fff;color:#243b3e}body.light .coordinate-code,body.light .beta-settings{background:#eef3ef}@media(max-width:620px){.match-grid label{grid-template-columns:1fr;gap:.35rem}.coordinate-code{padding:.6rem}}

/* Z80 workbench */
.z-workbench {min-width:0}.z-caption{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em}.z-workbench label{display:block}.z-workbench textarea{display:block;width:100%;box-sizing:border-box;resize:vertical;background:#111d22;color:#edf2e9;border:1px solid #62817d;border-radius:8px;padding:14px;font:16px/1.55 ui-monospace,monospace;tab-size:2}.z-controls{display:flex;flex-wrap:wrap;align-items:end;gap:8px;margin:14px 0}.z-controls button{font-size:.85rem}.z-workbench details{margin:14px 0;padding:12px;border:1px solid #63817b;border-radius:8px}.z-workbench summary{cursor:pointer;font-weight:600}.z-table-wrap{overflow-x:auto}.z-workbench table{width:100%;border-collapse:collapse;font-size:.85rem}.z-workbench td,.z-workbench th{text-align:left;vertical-align:top;padding:9px;border-bottom:1px solid #63817b}.z-workbench code{font: .85rem/1.5 ui-monospace,monospace}.z-registers{display:flex;flex-wrap:wrap;gap:7px;margin:12px 0}.z-registers span{padding:7px;border:1px solid #63817b;border-radius:5px}.z-device{padding:14px;background:#162a2a;color:#f0f4e9;border-radius:8px}.z-device>strong{display:block;font:2rem ui-monospace,monospace}.z-device p{overflow-wrap:anywhere;font-size:.85rem}.z-lights{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.z-lights span{min-width:25px;text-align:center;font-size:.7rem}.z-lights i{display:block;width:14px;height:14px;border-radius:50%;background:#354442;margin:auto auto 4px}.z-lights .on i{background:#9aecb1;box-shadow:0 0 8px #9aecb1}.z-list{padding:0;list-style:none;max-height:300px;overflow:auto}.z-list li{display:flex;gap:12px;padding:4px 8px;border-left:3px solid transparent}.z-list li>span{min-width:58px;font-size:.75rem;opacity:.8}.z-list .z-next{border-left-color:#86ddb0;background:#234539;color:white}.z-list code{white-space:pre-wrap;overflow-wrap:anywhere}#z-status{font-size:.9rem;overflow-wrap:anywhere}.z-workbench select{max-width:100%} .z-controls label{max-width:100%}

/* v5: centred reading and stable, touch-friendly working areas. */
html{scroll-behavior:auto;overflow-anchor:none;scrollbar-gutter:stable}
body,button,input,select,textarea,td,th,.brand,.claim,.chapter-button,.z-workbench td,.z-workbench th{text-align:center}
.story-text p:first-child:first-letter{float:none;font-size:inherit;line-height:inherit;padding:0;color:inherit}
.cover-copy>*{margin-left:auto;margin-right:auto}.tools,.modes,.start-actions,.puzzle-controls,.chapter-marker,.trial-response{justify-content:center}
.clues{list-style:none;padding-left:0}.feedback,.feedback:empty{display:block;min-height:3.3em}
.fullscreen-toggle{display:inline-flex;align-items:center;gap:.4rem}.fullscreen-toggle i{width:30px;height:18px;border:1px solid var(--gold);border-radius:12px;position:relative;flex-shrink:0}.fullscreen-toggle i:before{content:'';position:absolute;width:12px;height:12px;left:2px;top:2px;background:var(--muted);border-radius:50%}.fullscreen-toggle[aria-checked=true] i:before{left:14px;background:var(--gold)}
.topbar{height:auto;min-height:84px;padding-top:12px;padding-bottom:12px;flex-wrap:wrap}
.elimination-grid{display:grid;grid-template-columns:24px repeat(5,minmax(0,1fr));gap:5px;max-width:360px;margin:1rem auto;align-items:center}.elimination-grid button{aspect-ratio:1;padding:0;min-width:0;font-size:1.6rem;font-weight:bold}.elimination-grid button.excluded{color:#ff6666;background:#612d36}
#dialog.trial-dialog{position:fixed;inset:12px;margin:0 auto;width:min(680px,calc(100% - 24px));height:calc(100dvh - 24px);max-height:none;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable;overflow-anchor:none}
body:has(dialog[open]){overflow:hidden}
.trial-keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;max-width:280px;margin:12px auto}.trial-keypad button{min-height:44px;padding:8px;font-size:1.25rem}.trial-grid button.flash{background:var(--gold)}.trial-hidden{display:block;visibility:hidden}.trial-display{height:110px}.trial-response{min-height:66px}
@media(max-width:600px){#dialog.trial-dialog{padding:14px}.trial-dialog p{margin-bottom:10px}.trial-dialog .dialog-head h2{font-size:1.35rem}.trial-dialog .eyebrow{margin-bottom:8px}.trial-dialog .trial-grid{grid-template-columns:repeat(3,58px)}.trial-dialog .trial-display{min-height:76px;height:76px}.trial-dialog .trial-choices{grid-template-columns:repeat(3,1fr)}.trial-dialog .trial-choices button{padding:5px;font-size:.72rem}.trial-dialog .trial-choices button b{font-size:1.3rem}}

.resolved-board{border:0;margin:0;padding:0;min-width:0}.resolved-board:disabled{opacity:.82}


/* Supplemental puzzle pictures and touch entry. */
.cover-art img{inset:0;object-position:center center}
.cover-copy{align-items:center;text-align:center}
.cover-copy .lead,.cover-copy h1{margin-left:auto;margin-right:auto}
.cover-art figcaption{left:50%;transform:translateX(-50%);width:calc(100% - 3rem);max-width:unset;text-align:center}
.puzzle-art{margin:1rem 0 1.5rem}
.puzzle-art img{display:block;width:100%;height:auto;border-radius:5px}
.game-keypad{margin:1rem 0;display:grid;gap:.35rem;touch-action:manipulation}
.keypad-row{display:flex;justify-content:center;gap:.25rem}
.keypad-row button{min-width:0;min-height:44px;padding:.55rem .1rem;flex:1;max-width:5rem;font-size:clamp(.75rem,2.5vw,1rem)}
.keypad-row:last-child button{max-width:12rem}
#z-source{text-align:left;caret-color:var(--gold)}