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h2{font-size:25px}.game-meta{padding:0 18px;font-size:11px}.game-meta .text-button{font-size:11px}.timer{font-size:12px;gap:4px}.board-wrap{padding:12px 10px 0}.board-viewport{max-height:400px}.board-caption{font-size:11px;margin:13px 0 17px}.toolbar{padding:12px 10px;gap:8px;justify-content:space-between}.toolbar .mode-group{flex:1;justify-content:space-around;max-width:210px;padding:2px}.toolbar .mode-group .tool{padding:0 8px;font-size:11px;gap:5px}.toolbar>.tool{width:40px;padding:0;min-width:40px;min-height:44px}.toolbar .hint-button{width:49px;font-size:11px;gap:3px}.toolbar .hint-button svg{width:13px}.tool svg{width:15px;height:15px}.view-controls{gap:6px;padding-bottom:12px}.view-controls .tool{padding:0 8px}.beginner-bar{padding:12px 2px;gap:8px;font-size:11px}.beginner-bar>svg{width:18px}.beginner-bar .text-button{font-size:11px}.chapter-feature{display:grid;grid-template-columns:116px 1fr;gap:0 18px;padding:16px}.chapter-feature>.eyebrow{grid-column:2;margin:0 0 5px;font-size:9px}.chapter-feature>.eyebrow span{display:none}.feature-art{grid-column:1;grid-row:1/7;width:116px;height:164px;align-self:center;object-fit:cover}.chapter-feature h2{font-size:24px;margin:0 0 6px}.chapter-feature p:not(.eyebrow){font-size:11px;line-height:1.5}.chapter-progress{margin:13px 0 7px;gap:3px}.chapter-feature .progress-caption{font-size:10px;margin-bottom:3px}.chapter-feature .text-button{font-size:11px;min-height:28px}.quiet-note{font-size:10px;padding:12px 4px 0;gap:8px}.daily-strip{grid-template-columns:48px 1fr;gap:16px;padding:20px;margin:26px 0 34px}.daily-stamp{width:48px;height:48px;padding:8px}.daily-stamp svg{width:30px;height:30px}.daily-strip h2{font-size:25px}.daily-strip .eyebrow{font-size:9px}.daily-strip p{font-size:11px}.daily-actions{grid-column:1/-1;flex-direction:row;align-items:center;justify-content:space-between;border-top:1px solid #cbd5c3;padding-top:16px}.leaf-tasks span{display:inline;font-size:10px}.daily-actions .button{min-height:42px;font-size:11px;padding:9px 14px}.section-heading{align-items:start;gap:12px}.section-heading h2{font-size:28px}.section-heading>p{font-size:10px;max-width:95px;padding-top:23px;text-align:right}.section-heading .eyebrow{font-size:9px}.chapter-grid{gap:24px 16px}.chapter-link h3{font-size:20px;letter-spacing:-.3px;margin-top:10px}.chapter-link p{font-size:10px}.chapter-link .chapter-status{font-size:10px}.chapter-link .chapter-index{font-size:9px;left:8px;top:8px}.chapter-link img{aspect-ratio:1.25}.how-band{align-items:start;gap:18px;margin-top:30px;padding-top:24px;flex-wrap:wrap}.how-band h2{font-size:24px}.how-band p{font-size:11px}.how-band .rule-example{font-size:13px}.how-band .text-button{font-size:11px;margin-left:auto}.site-footer{margin:0 20px;padding:22px 0 24px;align-items:start;gap:15px;flex-direction:column}.site-footer>div:last-child{width:100%;justify-content:space-between}.site-footer>div:first-child>span{display:block;font-size:10px}.footer-brand{font-size:14px}.site-footer{font-size:10px}.chapter-detail{display:block;margin-top:28px}.chapter-detail>img{height:200px;object-fit:cover;margin-bottom:25px}.page-title,.intro.slim h1{font-size:38px}.level-link{grid-template-columns:26px 1fr auto 18px;gap:10px;padding:17px 2px}.level-name{font-size:14px}.level-meta{font-size:10px}.advanced-list{display:block}.collection-grid{grid-template-columns:1fr;gap:28px;margin-top:20px}.collection-item h2{font-size:26px}.collection-item p{font-size:12px}.content-page{padding:30px 0}.content-page p,.content-page li{font-size:14px}.rule-demo{padding:20px;gap:15px;flex-wrap:wrap}.modal-body{padding:23px}.modal-head h2{font-size:28px}.modal-body p{font-size:13px}.modal-actions{gap:8px}.focus-mode .header-inner{min-height:62px}.focus-mode .header-inner nav{display:none}.focus-mode .help-link{display:none}.focus-mode .page{padding:0 12px 12px}.focus-mode .home-grid{margin-top:14px}.focus-mode .board-viewport{max-height:calc(100dvh - 330px)}.focus-mode .board-wrap{padding:15px 6px 8px}.focus-mode .game-heading{padding-top:18px}.focus-mode .board-caption{margin-bottom:12px}.lesson-note{margin:12px 12px 0;padding:10px 12px;font-size:11px;gap:8px}.mobile-only{display:initial}}@media(max-width:359px){.page{padding-left:16px;padding-right:16px}.header-inner{padding:0 16px}.brand{font-size:23px}.help-link{font-size:10px;margin-right:10px}.intro h1{font-size:35px}.toolbar{gap:4px;padding-left:6px;padding-right:6px}.toolbar .mode-group .tool{padding:0 5px;gap:3px}.toolbar .mode-group{max-width:183px}.toolbar>.tool{width:36px;min-width:36px}.toolbar .hint-button{width:44px}.chapter-feature{grid-template-columns:96px 1fr;gap:0 13px}.feature-art{width:96px}.chapter-feature h2{font-size:21px}.chapter-link h3{font-size:18px}.beginner-bar{font-size:10px}.beginner-bar .text-button{font-size:10px}.intro .eyebrow{letter-spacing:1.4px}.section-heading h2{font-size:26px}}
/* Intrinsic SVG bounds must not inflate utility rows or level links. */
svg{width:20px;height:20px;flex-shrink:0}
.intro{padding-top:32px;padding-bottom:26px}
.intro h1{font-size:48px}
.play-column{min-width:0}
.board-table{width:max-content;max-width:none}
.board-table tbody th{max-width:var(--clue-w)}
.board-table thead th{max-width:var(--cell)}
.level-number svg{width:20px;height:20px}
.level-link .level-check{font-family:var(--sans)}
.site-footer a:hover,.help-link:hover{color:var(--clay)}
.overview-grid:focus-visible{outline:3px solid var(--clay);outline-offset:4px}
@media(min-width:1400px){.intro{padding-top:32px}.intro h1{font-size:50px}.board-wrap{padding-top:12px;padding-bottom:6px}.feature-art{height:230px}}
@media(max-width:650px){.intro{padding-top:26px;padding-bottom:22px}.intro h1{font-size:39px}.feature-art{height:164px}.board-viewport{max-height:360px}.beginner-bar>svg{width:18px;height:18px}.focus-mode .board-viewport{max-height:calc(100dvh - 330px)}}
@media(max-width:359px){.intro h1{font-size:35px}}
@media(max-width:650px){.view-controls{display:grid;grid-template-columns:1fr 1fr 44px 44px;gap:4px;padding:0 12px 12px}.view-controls .zoom{display:none}.view-controls .tool{padding:0;min-height:44px;gap:4px;font-size:11px}.view-controls .tool svg{display:none}.view-controls .icon-button{width:44px;height:44px}.toolbar>.tool{width:44px;min-width:44px}.toolbar .hint-button{width:49px}.toolbar .mode-group{min-width:0}.toolbar .mode-group .tool{min-width:0}}
@media(max-width:359px){.toolbar .hint-button{width:44px}.toolbar .mode-group .tool{font-size:10px;padding:0 4px}.toolbar .mode-group{max-width:178px}.toolbar{gap:4px}}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.reward-preview{width:240px;margin:20px auto;border-radius:4px}
.reward-preview img{aspect-ratio:1.5}
.reward-preview .revealed{animation:piece-reveal .7s ease-out}
@keyframes piece-reveal{from{background:var(--sage)}to{background:transparent}}
@media(max-width:650px){.focus-mode .board-viewport{max-height:calc(100dvh - 430px);min-height:160px}.focus-mode .game-heading{padding-bottom:8px}.focus-mode .board-caption{margin:10px 0;font-size:10px}.focus-mode .toolbar{padding-top:8px;padding-bottom:8px}}
/* Keep sticky clue surfaces opaque while de-emphasizing matching digits. */
.clue-match{opacity:1}.clue-match .clue-button{color:var(--muted)}

/* Keep the playing surface close to navigation without an introductory banner. */
.home-grid{margin-top:32px}
@media(max-width:650px){.home-grid{margin-top:24px}}

.discovery-art{position:relative;display:block;overflow:hidden;background:var(--sage);aspect-ratio:var(--art-ratio);isolation:isolate}
.discovery-art>svg{display:block;width:100%;height:100%;max-width:100%;object-fit:contain}
.discovery-art .unrevealed-region{fill:var(--sage);stroke:var(--line);stroke-width:.5%;vector-effect:non-scaling-stroke}
.discovery-art .pixel-paper,.result-piece-thumb .pixel-paper,.flying-piece .pixel-paper{fill:#f1eddf}
.discovery-art .pixel-ink,.result-piece-thumb .pixel-ink,.flying-piece .pixel-ink{fill:#26372e}
.discovery-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--muted);pointer-events:none}
.discovery-placeholder>span{font:normal 46px/1 var(--serif);color:var(--ink)}
.discovery-placeholder small{font-size:8px;letter-spacing:1.2px;line-height:1.4;text-align:center;padding:0 10px}
.chapter-link .chapter-image .discovery-art{height:240px;aspect-ratio:auto}
.discovery-art.feature-art{height:244px;width:100%}
.detail-art{width:100%;align-self:start;border:1px solid var(--line);border-radius:4px}
.collection-picture{height:280px;border:1px solid var(--line)}
.reward-picture{width:240px;max-height:300px;margin:20px auto;border:1px solid var(--line)}
.full-picture{width:100%;max-height:65vh}
.chapter-index{z-index:1}
.modal-head:has(.visually-hidden){justify-content:flex-end}
@media(max-width:650px){.modal-actions{display:grid;grid-template-columns:1fr 1fr}.modal-actions>.text-button{grid-column:1/-1}.modal-actions>.button{justify-content:center;white-space:nowrap;padding-inline:10px}}
@media(max-width:900px){.chapter-link .chapter-image .discovery-art{height:210px}}
@media(max-width:650px){.discovery-art.feature-art{grid-column:1;grid-row:1/7;width:116px;height:164px}.detail-art{max-height:280px;margin-bottom:25px}.chapter-link .chapter-image .discovery-art{height:190px}.collection-picture{height:240px}.discovery-placeholder small{font-size:7px;letter-spacing:.6px}}
@media(max-width:359px){.discovery-art.feature-art{width:96px}}

.overview-grid{width:min(100%,370px,calc((100dvh - 380px)*var(--overview-ratio,1)))}

/* Personal collection: earned pictures in a compact gallery. */
.collection-heading{display:flex;justify-content:space-between;align-items:end;gap:16px;padding:28px 0 20px;border-bottom:1px solid var(--line)}
.collection-heading .eyebrow{margin-bottom:6px}
.collection-heading h1{font:normal 36px/1.15 var(--serif);letter-spacing:-.8px;margin:0}
.collection-heading>p{color:var(--muted);font-size:12px;margin:0 0 3px}
.collection-grid{grid-template-columns:repeat(8,minmax(0,1fr));gap:20px 12px;margin-top:20px;align-items:start}
.collection-item{min-width:0;padding:0;border:0}
.collection-item .collection-picture{width:100%;height:auto;aspect-ratio:1/1}
.collection-caption{display:block;margin-top:8px}
.collection-caption h2{font-size:16px;margin:0;overflow-wrap:anywhere}
.collection-caption p{margin:4px 0 0;color:var(--muted);font-size:12px}
.collection-item>.text-button{font-size:12px}
.collection-empty{padding:44px 0;border-bottom:1px solid var(--line)}
.collection-empty h2{font-size:25px;margin:0 0 8px}
.collection-empty p{color:var(--muted);font-size:14px;margin:0 0 12px}
@media(max-width:900px){.collection-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px 10px}.collection-caption{display:block}.collection-caption p{margin-top:4px}}
@media(max-width:650px){.collection-heading{display:block;padding:22px 0 16px}.collection-heading h1{font-size:30px}.collection-heading>p{margin-top:10px}.collection-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px 8px;margin-top:18px}.collection-item .collection-picture{width:100%;height:auto;aspect-ratio:1/1}.collection-caption{display:block}.collection-caption h2{font-size:12px}.collection-caption p{margin:3px 0 0;font-size:10px}.collection-empty{padding:30px 0}.collection-empty p{max-width:30ch}}

/* Completion: the earned artwork leads, with one clear next step. */
dialog.result-dialog{max-width:600px;overflow-x:hidden}
.result-dialog .modal-body{padding:24px}
.result-dialog .modal-head{margin:0 0 20px;gap:12px}
.result-dialog .modal-head h2{font-size:32px;letter-spacing:-.6px;line-height:1.15}
.result-dialog .modal-head .icon-button{flex:none}
.result-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:24px;align-items:center}
.result-artwork{display:grid;place-items:center;min-width:0;background:var(--sage);border:1px solid var(--line);padding:12px;border-radius:4px}
.result-picture{width:100%;height:196px;max-width:100%;margin:0;aspect-ratio:auto}
.result-picture svg{width:100%;height:100%;display:block}
.result-info .eyebrow{margin:0 0 8px;font-size:9px;letter-spacing:1.3px}
.result-info h3{font-size:27px;letter-spacing:-.4px;margin:0 0 16px;overflow-wrap:anywhere}
.result-progress .chapter-progress{margin:0 0 7px;max-width:none;gap:4px}
.result-progress p{font-size:12px;margin:0}
.result-stats{display:flex;gap:28px;border-top:1px solid var(--line);padding-top:14px;margin:18px 0 0}
.result-stats dt{font-size:10px;color:var(--muted);margin:0 0 2px}
.result-stats dd{font-size:14px;margin:0;color:var(--ink)}
.result-dialog .modal-actions{display:block;border-top:1px solid var(--line);padding-top:18px;margin-top:22px}
.result-next{display:flex;width:100%;justify-content:center;gap:16px;min-height:48px}
.result-secondary{display:flex;justify-content:space-between;gap:20px;margin-top:5px}
.result-secondary .text-button{font-size:12px;color:var(--muted)}
.celebration{position:absolute;inset:0;overflow:hidden;pointer-events:none;border-radius:inherit;z-index:2}
.firework{position:absolute;width:0;height:0;pointer-events:none}
.firework i{position:absolute;width:4px;height:4px;border-radius:1px;background:var(--spark);opacity:0;animation:celebration-spark 1.2s cubic-bezier(.14,.65,.32,1) var(--delay) both}
@keyframes celebration-spark{0%{transform:translate(0,0) scale(.3);opacity:0}12%{opacity:1}70%{opacity:.8}100%{transform:translate(var(--dx),calc(var(--dy) + 25px)) rotate(110deg) scale(.35);opacity:0}}
.reduced-motion .celebration{display:none}
@media(prefers-reduced-motion:reduce){.celebration{display:none}}
@media(max-width:650px){.result-dialog .modal-body{padding:20px}.result-dialog .modal-head{margin-bottom:16px}.result-dialog .modal-head h2{font-size:27px}.result-layout{grid-template-columns:1fr;gap:16px}.result-artwork{padding:10px}.result-picture{height:160px}.result-info h3{font-size:24px;margin-bottom:10px}.result-info .eyebrow{margin-bottom:5px}.result-stats{justify-content:space-between;margin-top:12px;padding-top:10px}.result-dialog .modal-actions{margin-top:16px;padding-top:14px}.result-secondary{gap:12px}}

.result-piece{display:flex;align-items:center;gap:12px;margin:0 0 14px;min-height:64px}
.result-piece-thumb{height:64px;aspect-ratio:var(--piece-ratio);max-width:104px;flex:none;background:var(--paper);border:1px solid var(--line);padding:0}
.result-piece-thumb svg{display:block;width:100%;height:100%}
.result-piece>span{font-size:11px;color:var(--muted);line-height:1.5;max-width:15ch}
.flying-piece{position:absolute;z-index:3;transform-origin:0 0;pointer-events:none;box-shadow:0 0 0 1px var(--clay),0 0 18px color-mix(in srgb,var(--clay) 25%,transparent)}
.flying-piece svg{display:block;width:100%;height:100%}
.piece-landing{position:absolute;z-index:2;pointer-events:none;border:2px solid var(--clay);animation:piece-arrival .85s ease-out both}
@keyframes piece-arrival{0%{opacity:1;box-shadow:0 0 0 0 var(--clay),inset 0 0 16px color-mix(in srgb,var(--clay) 35%,transparent)}100%{opacity:0;box-shadow:0 0 0 12px transparent,inset 0 0 0 transparent}}
@media(max-width:650px){.result-piece{min-height:44px;margin-bottom:10px;gap:10px}.result-piece-thumb{height:44px;max-width:72px}.result-piece>span{max-width:none}.result-info h3{margin-bottom:8px}}
@media(prefers-reduced-motion:reduce){.flying-piece,.piece-landing{display:none}}
.reduced-motion .flying-piece,.reduced-motion .piece-landing{display:none}

.board-stage{position:relative;isolation:isolate}
.puzzle-start{position:absolute;inset:0;z-index:2;display:grid;place-items:center;padding:var(--clue-h) 0 0 var(--clue-w);pointer-events:none}
.puzzle-start[hidden]{display:none}
.puzzle-start-button{pointer-events:auto;display:flex;align-items:center;justify-content:center;gap:6px;width:72px;height:44px;padding:0 8px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:6px;box-shadow:0 3px 12px #0002;font-size:12px;font-weight:600;line-height:1}
.start-play{position:relative;display:grid;place-items:center;width:20px;height:20px;flex:none;background:var(--ink);color:var(--paper);border-radius:50%}
.start-play svg{width:11px;height:11px;margin-left:1px;fill:currentColor;stroke-width:1}
.start-play:before{content:'';position:absolute;inset:-1px;border:1px solid var(--clay);border-radius:50%;animation:start-invitation 1.8s ease-out infinite}
.puzzle-start-button:hover .start-play{transform:scale(1.04)}
.start-play{transition:transform .18s ease}
.cell:disabled{opacity:1;cursor:default}.board-table[aria-readonly="true"]{opacity:.65}
@keyframes start-invitation{0%{transform:scale(1);opacity:.7}85%,100%{transform:scale(1.45);opacity:0}}
.reduced-motion .start-play:before{animation:none;display:none}.reduced-motion .start-play{transition:none}
@media(prefers-reduced-motion:reduce){.start-play:before{animation:none;display:none}.start-play{transition:none}}

.board-table td{position:relative}
.board-table .check-row,.board-table .check-col{--review-top:0px;--review-right:0px;--review-bottom:0px;--review-left:0px}
.board-table .check-row{--review-top:2px;--review-bottom:2px}
.board-table .check-col{--review-left:2px;--review-right:2px}
.board-table .check-top{--review-top:2px}.board-table .check-bottom{--review-bottom:2px}.board-table .check-left{--review-left:2px}.board-table .check-right{--review-right:2px}
.board-table .check-row:after,.board-table .check-col:after{content:'';position:absolute;inset:0;z-index:1;pointer-events:none;border:solid var(--clay);border-width:var(--review-top) var(--review-right) var(--review-bottom) var(--review-left);animation:review-arrival .7s ease-out 1}
.board-table th.check-row .clue-button,.board-table th.check-col .clue-button{color:var(--clay);font-weight:700}
.board-feedback{display:flex;gap:9px;align-items:baseline;text-align:left;margin:16px auto 8px;padding:10px 12px;max-width:52ch;border-left:2px solid var(--clay);background:var(--surface);color:var(--ink);font-size:13px;line-height:1.5}
.board-feedback:before{content:'!';font-weight:700;color:var(--clay)}.board-feedback[hidden]{display:none}
@keyframes review-arrival{0%{filter:brightness(1.7)}100%{filter:brightness(1)}}
.reduced-motion .check-row:after,.reduced-motion .check-col:after{animation:none}
@media(prefers-reduced-motion:reduce){.board-table .check-row:after,.board-table .check-col:after{animation:none}}
.board-feedback{flex-wrap:wrap;align-items:center;column-gap:10px;row-gap:4px}.board-feedback p{flex:1;min-width:160px;margin:0}.board-feedback>button{min-height:44px;flex:none;font-size:12px;color:var(--clay);text-decoration:underline;text-underline-offset:4px}.board-feedback:before{align-self:flex-start;padding-top:9px}@media(max-width:650px){.board-feedback>button{margin-left:14px}.board-feedback p{min-width:calc(100% - 30px)}}
/* Reserve the table border’s extra pixel so a fully visible board cannot scroll by 1px. */
.board-viewport.expanded-board,.focus-mode .board-viewport.expanded-board{max-height:none;min-height:0;padding-bottom:1px}
.board-table[aria-readonly="true"] .cell{touch-action:pan-y pinch-zoom}
.toolbar .restart-button{width:44px;min-width:44px;padding:0;flex:none}

.tutorial-mode .timer,.tutorial-mode .view-controls,.tutorial-mode .game-meta>[data-action="focus"],.tutorial-mode .toolbar>[data-action="restart-confirm"]{display:none}
.tutorial-lesson-1 [data-mode="-1"]{display:none}
.tutorial-mode .board-wrap[hidden],.tutorial-mode .toolbar[hidden]{display:none}
.lesson-coach{margin:16px 24px 0;padding:14px 16px;border:1px solid var(--line);border-left:3px solid var(--gold);background:var(--surface)}
.coach-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.coach-heading strong{font-size:15px;font-weight:600;line-height:1.4}
.coach-count{display:block;margin-top:8px;font:12px/1.6 ui-monospace,monospace;white-space:nowrap;color:var(--gold)}
.lesson-coach p{font-size:13px;line-height:1.5;color:var(--muted);margin:7px 0 4px}
.coach-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:36px}
.coach-actions>[data-action="skip-tutorial"]{margin-left:auto}
.coach-actions .text-button{font-size:12px;min-height:44px}
.coach-independent{font-size:11px;color:var(--muted)}
.lesson-coach.has-error{border-left-color:var(--clay)}
.lesson-coach.has-error .coach-heading strong,.lesson-coach.has-error p{color:var(--clay)}
.board-table .coach-clue{background:var(--sage);color:var(--clay);box-shadow:inset 0 -2px var(--gold)}
.tutorial-mode .cell.coach-target{outline:1px solid var(--gold);outline-offset:-2px!important}
.tutorial-mode .cell.coach-target:not(.filled):not(.marked){background:color-mix(in srgb,var(--gold) 8%,var(--surface))}
.tutorial-mode .cell.coach-error{outline:3px solid var(--clay);outline-offset:-3px!important}
.tutorial-mode .coach-tool{outline:2px solid var(--gold);outline-offset:2px;animation:coach-tool-pulse 1.4s ease-in-out infinite}
@keyframes coach-tool-pulse{50%{outline-offset:6px;box-shadow:0 0 0 6px color-mix(in srgb,var(--gold) 18%,transparent)}}
.tutorial-mode .cell:disabled{opacity:1;cursor:default}
.tutorial-mode .clue-button:disabled{opacity:1}
.reduced-motion .coach-tool{animation:none}
@media(prefers-reduced-motion:reduce){.tutorial-mode .coach-tool{animation:none}}
.coach-gesture{position:absolute;left:-9px;top:-9px;z-index:5;width:18px;height:18px;border:2px solid var(--clay);border-radius:50%;box-shadow:0 0 0 4px color-mix(in srgb,var(--clay) 22%,transparent);pointer-events:none}
.lesson-prelude{margin:20px 24px 24px;text-align:center;padding:28px 18px;border:1px solid var(--line);background:var(--sage)}
.lesson-prelude .eyebrow{color:var(--clay);font-size:10px}
.lesson-prelude h3{font-size:28px;margin:0 0 10px}
.lesson-prelude p{font-size:13px;line-height:1.5;color:var(--muted)}
.lesson-prelude .text-button{min-height:44px;font-size:12px}
.gap-example{display:flex;align-items:center;justify-content:center;gap:14px;margin:20px 0}
.gap-example>strong{font:18px ui-monospace,monospace;white-space:nowrap}
.gap-practice{position:relative;padding:36px 24px 40px;text-align:center}
.gap-practice>.eyebrow{color:var(--muted);font-size:10px}
.practice-line{display:flex;justify-content:center;align-items:center;gap:18px;margin:30px 0 22px}
.practice-line>strong{display:flex;gap:12px;font:20px ui-monospace,monospace}
.practice-squares{display:flex;gap:4px}
.practice-cell{position:relative;width:44px;height:44px;border:1px solid var(--grid);background:var(--surface);color:var(--muted);border-radius:0}
.practice-cell:disabled{opacity:1;cursor:default}
.practice-cell.is-filled{background:var(--night-fill,var(--ink));box-shadow:inset 0 0 0 2px var(--surface)}
.practice-cell.practice-target{outline:1px solid var(--gold);outline-offset:-3px;background:color-mix(in srgb,var(--gold) 8%,var(--surface))}
.practice-note{font-size:12px;color:var(--muted)}
.gap-practice>.button{margin:10px auto 0}
@media(max-width:650px){.gap-practice{padding:24px 12px 30px}.practice-line{gap:12px}.practice-line>strong{gap:8px;font-size:18px}.practice-squares{gap:3px}}
.gap-squares{display:flex;gap:3px;align-items:center}
.gap-squares i,.gap-squares>span,.gap-squares button{display:grid;place-items:center;width:36px;height:36px;flex:none;border:1px solid var(--grid);background:var(--night-fill,var(--ink));color:var(--muted)}
.gap-squares button{width:44px;height:44px;background:var(--surface);border:2px solid var(--gold);position:relative}
.gap-squares button:after{content:'';position:absolute;inset:5px;border:1px dashed var(--gold);pointer-events:none}
.gap-squares>span{background:var(--surface);position:relative;line-height:1}
.gap-cross:before,.gap-cross:after{content:'';position:absolute;left:50%;top:50%;width:75%;height:1px;background:currentColor;transform:translate(-50%,-50%) rotate(45deg)}
.gap-cross:after{transform:translate(-50%,-50%) rotate(-45deg)}
.lesson-coach .gap-example{justify-content:flex-start;margin:10px 0 0;gap:9px}
.lesson-coach .gap-example>strong{font-size:12px}
.lesson-coach .gap-squares i,.lesson-coach .gap-squares>span{width:17px;height:17px;font-size:15px}
.reduced-motion .coach-gesture{display:none}
@media(prefers-reduced-motion:reduce){.coach-gesture{display:none}}
@media(max-width:650px){.lesson-coach{margin:12px 12px 0;padding:12px}.coach-heading strong{font-size:14px}.lesson-coach p{font-size:12px}.lesson-prelude{margin:16px 12px 20px;padding:24px 12px}.lesson-prelude h3{font-size:26px}.gap-example{gap:10px}.gap-squares i,.gap-squares>span{width:30px;height:36px}.tutorial-mode .board-wrap{padding-top:14px;padding-bottom:8px}.tutorial-mode .board-caption{font-size:11px}}

.beginner-bar,.focus-mode .beginner-bar{display:flex;align-items:center;gap:14px;padding:16px 18px;margin:0 0 16px;border:1px solid var(--line);border-left:3px solid var(--gold);background:var(--surface);color:var(--ink)}
.page>.beginner-bar{margin-top:28px}.breadcrumb+.beginner-bar{margin-top:0}
.beginner-bar>svg{width:24px;height:24px;color:var(--gold);flex:none}
.beginner-bar>div{display:flex;flex-direction:column;gap:2px;min-width:0}
.beginner-bar strong{font-size:14px;line-height:1.4;font-weight:600}
.beginner-bar>div>span{font-size:12px;color:var(--muted);line-height:1.5}
.beginner-bar .button{margin-left:auto;flex:none;min-height:44px;font-size:12px;padding:0 14px;gap:8px;white-space:nowrap}
.beginner-bar[hidden],.focus-mode .beginner-bar[hidden]{display:none}
@media(max-width:650px){.beginner-bar,.focus-mode .beginner-bar{gap:10px;padding:12px;flex-wrap:wrap}.beginner-bar>svg{width:20px;height:20px}.beginner-bar>div{flex:1}.beginner-bar strong{font-size:13px}.beginner-bar>div>span{font-size:11px}.beginner-bar .button{margin-left:30px;font-size:12px}.page>.beginner-bar{margin-top:20px}.breadcrumb+.beginner-bar{margin-top:0}}

/* Chapter rows communicate progress with text, shape and color together. */
.level-link{grid-template-columns:36px minmax(0,1fr) auto 18px;gap:14px;min-height:84px;padding:14px 16px;border-left:3px solid transparent}
.level-copy{display:flex;flex-direction:column;gap:3px;min-width:0}
.level-name{line-height:1.4;overflow-wrap:anywhere}
.level-number{display:grid;place-items:center;width:32px;height:32px;border:1px solid var(--line);border-radius:50%;font-size:12px}
.level-state{display:flex;flex-direction:column;align-items:flex-end;gap:3px;white-space:nowrap}
.level-status{display:inline-flex;align-items:center;gap:5px;font-size:12px;line-height:1.4;color:var(--muted)}
.level-status svg{width:14px;height:14px;stroke-width:2}
.level-action{font-size:11px;color:var(--clay)}
.level-link.is-completed{background:color-mix(in srgb,var(--sage) 70%,var(--paper));border-left-color:var(--night-fill,var(--ink))}
.level-link.is-completed .level-number{background:var(--night-fill,var(--ink));color:var(--night-on-fill,var(--surface));border-color:transparent}
.level-link.is-completed .level-name{font-weight:600}
.level-link.is-completed .level-status{color:var(--ink);font-weight:600}
.level-link.is-completed .level-action,.level-link.is-completed .level-check{color:var(--muted)}
.level-link.is-active{border-left-color:var(--clay);background:color-mix(in srgb,var(--clay) 6%,var(--paper))}
.level-link.is-active .level-status{color:var(--clay);font-weight:600}
.level-link:hover{background:var(--sage)}
@media(max-width:650px){.level-link{grid-template-columns:30px minmax(0,1fr) auto 14px;gap:9px;padding:13px 10px;min-height:80px}.level-number{width:28px;height:28px;font-size:11px}.level-status{font-size:11px}.level-meta{font-size:11px}.level-name{font-size:14px}}

/* A whole picture earns a full-screen stage; controls stay available throughout. */
dialog.chapter-result{position:fixed;inset:0;width:100%;max-width:none;height:100dvh;max-height:none;margin:0;border:0;border-radius:0;box-shadow:none;overflow-y:auto}
.chapter-result .modal-body{width:min(100%,920px);min-height:100dvh;margin:auto;padding:32px 48px;display:flex;flex-direction:column;justify-content:center}
.chapter-result .modal-head{justify-content:center;margin:0 0 24px;padding:0 48px;text-align:center}
.chapter-result .modal-head h2{font-size:clamp(32px,4vw,52px);letter-spacing:-1.2px}
.chapter-result .modal-head .icon-button{position:fixed;right:max(24px,env(safe-area-inset-right));top:max(24px,env(safe-area-inset-top));width:44px;height:44px;z-index:8;background:var(--surface)}
.chapter-result .result-layout{grid-template-columns:1fr;gap:18px;text-align:center}
.chapter-result .result-artwork{width:min(100%,440px);margin:auto;padding:20px;background:var(--sage);border:1px solid var(--line);border-radius:2px}
.chapter-result .result-picture{height:clamp(180px,37dvh,350px)}
.chapter-result .result-info .eyebrow{margin:0 0 6px;letter-spacing:2.8px}
.chapter-result .result-info h3{font-size:36px;margin:0 0 14px}
.chapter-result .result-piece{justify-content:center;min-height:32px;margin:0 0 12px;gap:10px}
.chapter-result .result-piece-thumb{height:32px;max-width:48px}
.chapter-result .result-piece>span{max-width:none}
.chapter-result .result-progress{max-width:280px;margin:auto}
.chapter-result .result-stats{justify-content:center;gap:36px;border:0;padding:0;margin:12px 0 0}
.chapter-result .result-stats>div{display:flex;align-items:baseline;gap:8px}
.chapter-result .modal-actions{width:min(100%,440px);margin:20px auto 0;padding-top:18px}
.chapter-result .result-secondary{justify-content:center}
.chapter-shower{position:fixed;inset:0;z-index:6;pointer-events:none;overflow:hidden;contain:strict}
.chapter-shower i{position:absolute;top:-20px;display:block;background:var(--particle);width:var(--particle-width);height:var(--particle-height);opacity:0;animation:chapter-fall var(--fall-duration) cubic-bezier(.2,.45,.55,1) var(--fall-delay) both;will-change:transform,opacity}
.chapter-shower .shower-glint{width:10px;height:10px;clip-path:polygon(50% 0,62% 38%,100% 50%,62% 62%,50% 100%,38% 62%,0 50%,38% 38%)}
@keyframes chapter-fall{0%{opacity:0;transform:translate3d(0,-20px,0) rotate(0)}8%{opacity:1}75%{opacity:.95}100%{opacity:0;transform:translate3d(var(--drift),calc(100dvh + 40px),0) rotate(var(--spin))}}
.reduced-motion .chapter-shower{display:none}
@media(prefers-reduced-motion:reduce){.chapter-shower{display:none}}
@media(max-width:650px){.chapter-result .modal-body{padding:68px 24px 24px;justify-content:center}.chapter-result .modal-head{padding:0;margin-bottom:18px}.chapter-result .modal-head h2{font-size:34px}.chapter-result .modal-head .icon-button{top:max(12px,env(safe-area-inset-top));right:16px}.chapter-result .result-layout{gap:16px}.chapter-result .result-artwork{max-width:310px;padding:14px}.chapter-result .result-picture{height:clamp(160px,30dvh,280px)}.chapter-result .result-info h3{font-size:28px;margin-bottom:12px}.chapter-result .result-secondary{gap:20px}.chapter-result .modal-actions{margin-top:16px}.chapter-result .result-piece{min-height:28px;margin-bottom:10px}.chapter-result .result-piece-thumb{height:28px}.chapter-result .result-stats{margin-top:10px}}

@media(max-width:359px){.practice-line{flex-direction:column;gap:12px}}

.toolbar .debug-button{width:44px;min-width:44px;padding:0;flex:none;border:1px dashed var(--clay);color:var(--clay)}
@media(max-width:650px){.toolbar{justify-content:center}.toolbar .mode-group{flex:0 0 100%;max-width:none}.toolbar .mode-group .tool{flex:1}}

.page>.visually-hidden+.chapter-grid{margin-top:28px}
@media(max-width:650px){.page>.visually-hidden+.chapter-grid{margin-top:20px}}

.practice-pause{position:absolute;inset:0;z-index:6;display:grid;place-items:center;pointer-events:none}

.game-heading .daily-date{display:flex;align-items:center;gap:10px;margin-right:auto;font:650 28px/1.3 var(--sans)}.game-heading .daily-date span{font:inherit;margin-left:0;color:inherit}.daily-date[hidden]{display:none}.daily-date svg{width:26px;height:26px;flex:none}@media(max-width:650px){.game-heading .daily-date{font-size:24px;gap:8px}.daily-date svg{width:24px;height:24px}}
/* Daily pictures share a board and an independent, earned-only picture list. */
.daily-page-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start;margin-top:24px}
.daily-picker{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:22px 18px}
.daily-picker header .eyebrow{margin:0 0 8px;color:var(--muted)}
.daily-picker h2{font-size:28px;margin:0 0 6px}
.daily-picker-count{font-size:12px;color:var(--muted);margin:0 0 20px}
.daily-size-group{margin-top:18px}
.daily-size-group h3{font:600 12px/1.5 var(--sans);color:var(--muted);margin:0 0 8px}
.daily-levels{display:grid;gap:6px}
.daily-choice{display:flex;align-items:center;gap:10px;min-height:68px;padding:9px;border:1px solid transparent;border-radius:5px;transition:background .18s,border-color .18s}
.daily-choice:hover{background:var(--sage)}
.daily-choice.is-active{background:var(--sage);border-color:var(--ink)}
.daily-choice-art{display:grid;place-items:center;flex:none;width:40px;height:40px;background:var(--paper);border:1px solid var(--line);color:var(--muted);font:22px var(--serif)}
.daily-choice-art .discovery-art{width:100%;height:100%;padding:3px}
.daily-choice-copy{min-width:0;flex:1;display:grid;gap:1px}
.daily-choice-copy strong{font-size:13px;letter-spacing:.5px}
.daily-choice-copy>span{font-size:11px;color:var(--muted);line-height:1.4}
.daily-choice-status{flex:none;text-align:right;font-size:10px;color:var(--muted)}
.daily-choice-status small{display:block;color:var(--ink);font-size:10px}
.daily-choice.is-complete .daily-choice-status{color:var(--ink)}
.daily-picker>.text-button{margin-top:18px;font-size:12px}
.focus-mode .daily-page-layout{grid-template-columns:minmax(0,1fr)}
.focus-mode .daily-picker{display:none}
@media(max-width:1000px){.daily-page-layout{grid-template-columns:minmax(0,1fr) 280px;gap:18px}.daily-picker{padding:18px 12px}.daily-choice{gap:8px;padding:8px 6px}}
@media(max-width:800px){.daily-page-layout{grid-template-columns:minmax(0,1fr)}.daily-picker{padding:22px 18px}.daily-picker h2{font-size:26px}.daily-levels{grid-template-columns:repeat(3,minmax(0,1fr))}.daily-choice{flex-wrap:wrap}.daily-choice-status{width:100%;text-align:left;padding-left:48px}.daily-choice-status small{display:inline;margin-left:8px}}
@media(max-width:650px){.daily-page-layout{margin-top:18px;gap:20px}.daily-levels{grid-template-columns:minmax(0,1fr)}.daily-choice{flex-wrap:nowrap;min-height:66px;padding:9px}.daily-choice-status{width:auto;padding-left:0;text-align:right}.daily-choice-status small{display:block;margin:0}.daily-picker{padding:20px 16px}}

/* Balance the row-clue gutter so the playable grid stays centered on phones. */
.board-stage{--clue-min-w:64px;--clue-width-buffer:12px;--board-trailing-space:0px}
.board-viewport{padding-right:var(--board-trailing-space)}
.puzzle-start{padding-right:var(--board-trailing-space)}
@media(max-width:650px){.board-stage.small-board{--clue-min-w:32px;--clue-width-buffer:6px;--board-trailing-space:var(--clue-w)}.small-board .board-table tbody th{padding-right:4px}.small-board .board-table tbody .clue-button{font-size:12px;word-spacing:-2px}}

.collection-open{display:block;width:100%;padding:0;border:0;background:transparent;cursor:zoom-in;text-align:left}
.collection-open:hover:not(:disabled){filter:none}
.collection-open:hover .collection-picture{outline:1px solid var(--muted);outline-offset:-1px}
.full-picture{height:auto;aspect-ratio:var(--art-ratio,1)}

.board-caption:has(.board-complete){margin:20px 0 24px}
.board-complete{display:flex;flex-direction:column;align-items:center;gap:12px}
.board-complete-status{color:var(--muted);font-size:12px}
.board-complete-actions{display:flex;align-items:center;justify-content:center;gap:22px}
.board-complete-actions .button{min-height:44px;gap:20px;white-space:nowrap}
.board-complete-actions .text-button{white-space:nowrap}
@media(max-width:650px){.board-complete-actions{flex-direction:column;gap:4px;width:min(100%,300px)}.board-complete-actions .button{width:100%;justify-content:center}.board-caption:has(.board-complete){margin:18px 0}}

/* Reading guide: two routes through the same rules, with clue-sized examples. */
.learn-guide{margin-inline:auto;max-width:800px}
.learn-header .page-title{font-size:clamp(34px,5vw,46px);line-height:1.1;margin:0 0 18px}
.learn-guide strong{color:var(--ink);font-weight:600}
.learn-header .learn-lead{font:24px/1.35 var(--serif);color:var(--ink);margin-bottom:12px}
.learn-nav{display:grid;grid-template-columns:1fr 1fr;gap:0;border-block:1px solid var(--line);margin:28px 0;align-self:auto}
.learn-nav a{display:grid;grid-template-columns:28px 1fr;align-content:center;min-height:92px;padding:18px 20px;gap:2px 10px}
.learn-nav a+a{border-left:1px solid var(--line)}
.learn-nav a:hover{background:var(--sage)}
.learn-nav a>span{grid-row:1/3;color:var(--clay);font:12px/1.8 var(--sans)}
.learn-nav strong{font:25px/1.2 var(--serif)}
.learn-nav small{font-size:12px;line-height:1.5;color:var(--muted)}
.learn-legend{display:flex;flex-wrap:wrap;gap:12px 24px;margin-bottom:36px;color:var(--muted);font-size:12px}
.learn-legend>span{display:inline-flex;align-items:center;gap:8px}
.learn-cell{display:inline-grid;place-items:center;width:28px;height:28px;border:1px solid var(--grid);font:15px/1 var(--sans);font-style:normal;color:var(--muted);flex:none}
.learn-cell.is-filled{background:var(--ink);border-color:var(--ink)}
.learn-cell.is-empty{background:var(--surface);color:var(--ink);font-size:21px}
.learn-cell.is-unknown{background:var(--surface)}
.learn-legend .learn-cell{width:22px;height:22px;font-size:14px}
.learn-section{scroll-margin-top:24px;padding-bottom:32px}
.learn-section+ .learn-section{border-top:1px solid var(--line);padding-top:40px}
.learn-section>header :is(h2,h3){font-size:34px;line-height:1.15;margin:0 0 16px;letter-spacing:-.5px}
.learn-section>header .eyebrow{margin-bottom:12px;color:var(--clay)}
.learn-section> :is(h3,h4){font:600 19px/1.4 var(--sans);margin:30px 0 10px}
.learn-example{margin:20px 0 24px;padding:20px 24px;border-left:2px solid var(--gold);background:var(--sage)}
.learn-clue{display:flex;align-items:baseline;flex-wrap:wrap;gap:10px;font-size:12px;color:var(--muted);margin-bottom:14px}
.learn-clue strong{font:600 20px/1.3 ui-monospace,monospace;white-space:pre}
.learn-clue>span{margin-left:auto;font-size:11px}
.learn-example-row{display:flex;align-items:center;gap:16px;margin-top:8px;flex-wrap:wrap}
.learn-row-label{width:120px;color:var(--muted);font-size:12px;line-height:1.4}
.learn-cells{display:inline-flex;gap:3px}
.learn-example figcaption{font-size:13px;line-height:1.6;color:var(--muted);margin-top:14px;max-width:620px}
.learn-guide details{margin:12px 0 22px}
.learn-guide summary{min-height:44px;align-content:center;line-height:1.5;color:var(--ink);font-weight:500;padding-block:10px}
.learn-guide summary:hover{color:var(--clay)}
.learn-guide summary:focus-visible{outline:3px solid var(--clay);outline-offset:4px}
.learn-guide .learn-takeaway{border-left:2px solid var(--clay);padding-left:18px;margin-top:28px}
.learn-checklist{padding-left:22px}
.learn-checklist li{padding-left:4px;margin:10px 0}
[data-theme="night"] .learn-cell.is-filled{background:var(--night-fill);border-color:var(--night-fill)}
@media(max-width:650px){.learn-guide{padding-top:28px}.learn-header .learn-lead{font-size:22px}.learn-nav{grid-template-columns:1fr;margin:22px 0}.learn-nav a{min-height:80px;padding:14px 12px}.learn-nav a+a{border-left:0;border-top:1px solid var(--line)}.learn-nav strong{font-size:23px}.learn-legend{gap:12px 18px;font-size:11px;margin-bottom:30px}.learn-section>header :is(h2,h3){font-size:29px}.learn-section> :is(h3,h4){font-size:18px}.learn-example{padding:16px 14px;margin-inline:0}.learn-example-row{gap:6px;flex-direction:column;align-items:flex-start;margin-top:12px}.learn-row-label{width:auto}.learn-cell{width:27px;height:27px}.learn-example figcaption{font-size:12px}.learn-guide .button{font-size:13px;padding-inline:16px}}

/* Feedback is a quiet correspondence page, with a clear form and a useful margin. */
.feedback-link{display:inline-flex;align-items:center;gap:7px;min-height:44px;font-size:13px;color:var(--muted);white-space:nowrap}
.feedback-link svg{width:18px;height:18px}
.feedback-link:hover,.feedback-link[aria-current="page"]{color:var(--ink)}
.feedback-link[aria-current="page"] span{text-decoration:underline;text-underline-offset:5px}
.feedback-page{padding:32px 0 24px;max-width:1056px;margin:auto}
.feedback-heading{margin-bottom:24px}
.feedback-heading .page-title{font-size:40px;letter-spacing:-1px;line-height:1.1;margin:0 0 18px}
.feedback-heading>.eyebrow{color:var(--clay)}
.feedback-heading>p:last-child{color:var(--muted);font-size:14px;line-height:1.75;margin:0}
.feedback-layout{display:grid;grid-template-columns:minmax(0,700px) minmax(220px,1fr);gap:48px;align-items:start}
.feedback-form{min-width:0;background:var(--surface);padding:30px;border:1px solid var(--line);border-radius:6px}
.feedback-types{border:0;margin:0 0 26px;padding:0;min-width:0}
.feedback-types legend,.feedback-field>label{font-size:14px;font-weight:600;margin-bottom:10px;padding:0;color:var(--ink)}
.feedback-types>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.feedback-type{position:relative;cursor:pointer;min-width:0}
.feedback-type input{position:absolute;opacity:0;width:1px;height:1px}
.feedback-type>span{display:flex;flex-direction:column;gap:7px;padding:15px 12px;min-height:102px;border:1px solid var(--line);border-radius:4px;line-height:1.4}
.feedback-type strong{font-size:13px;font-weight:600}
.feedback-type small{font-size:11px;line-height:1.4;color:var(--muted)}
.feedback-type:hover>span{border-color:var(--muted)}
.feedback-type input:checked+span{background:var(--sage);border-color:var(--ink);box-shadow:inset 0 2px var(--ink)}
.feedback-type input:focus-visible+span{outline:3px solid var(--clay);outline-offset:3px}
.feedback-type:has(input:disabled){cursor:wait}
.feedback-field{margin-bottom:24px}
.feedback-field>label{display:block}
.feedback-field>label>span{font-size:12px;font-weight:400;color:var(--muted);margin-left:5px}
.feedback-field input,.feedback-field textarea{display:block;width:100%;min-width:0;min-height:48px;padding:12px 14px;border:1px solid var(--grid);border-radius:4px;background:var(--paper);color:var(--ink);font:14px/1.6 var(--sans)}
.feedback-field textarea{resize:vertical;min-height:172px;max-height:70vh}
.feedback-field input::placeholder,.feedback-field textarea::placeholder{color:var(--muted);opacity:.8}
.feedback-field input:focus,.feedback-field textarea:focus{outline:2px solid var(--clay);outline-offset:2px;border-color:var(--clay)}
.feedback-field [aria-invalid="true"]{border-color:var(--clay)}
.feedback-hint{font-size:12px;line-height:1.65;color:var(--muted);margin:6px 0 12px}
.feedback-field input+.feedback-hint{margin-bottom:0}
.feedback-field-bottom{display:flex;gap:12px;align-items:start;margin-top:7px}
#feedback-count{margin-left:auto;color:var(--muted);font-size:11px;white-space:nowrap}
.feedback-error{color:var(--clay);font-size:12px;line-height:1.6;margin:7px 0 0}
.feedback-field-bottom .feedback-error{margin:0}
.feedback-submit{padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.feedback-submit .button{min-height:48px;gap:20px;white-space:nowrap}
.feedback-submit p{flex:1;min-width:180px;font-size:11px;line-height:1.6;margin:0;color:var(--muted)}
.feedback-status{font-size:13px;line-height:1.7;margin:18px 0 0;border-left:2px solid var(--gold);padding:12px 14px;background:var(--sage)}
.feedback-status[data-state="error"]{border-color:var(--clay)}
.feedback-status[data-state="success"]{border-color:var(--ink);color:var(--ink)}
.feedback-status[hidden],.feedback-error[hidden]{display:none}
.feedback-aside{padding:8px 0;min-width:0}
.feedback-aside dd{font-size:13px;line-height:1.75;color:var(--muted);margin:0}
.feedback-aside dl{border-top:1px solid var(--line);margin:22px 0;padding:0}
.feedback-aside dl>div{padding:16px 0;border-bottom:1px solid var(--line)}
.feedback-aside dt{font-size:12px;font-weight:600;margin-bottom:5px}
.feedback-aside dd{font-size:12px}
.feedback-aside .text-button{font-size:12px;line-height:1.6}
@media(max-width:1100px){.feedback-layout{gap:28px;grid-template-columns:minmax(0,1fr) 230px}.feedback-form{padding:24px}.feedback-type>span{padding:14px 10px}}
@media(max-width:850px){.feedback-layout{grid-template-columns:1fr;gap:32px}.feedback-page{max-width:700px}.feedback-aside{border-top:1px solid var(--line);padding-top:24px}.feedback-aside dl{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feedback-aside dl>div{border:0}}
@media(max-width:650px){.feedback-link{width:44px;height:44px;justify-content:center;border:1px solid transparent;border-radius:50%}.feedback-link svg{width:20px;height:20px}.feedback-link>span{display:none}.feedback-link[aria-current="page"]{border-color:var(--line);background:var(--sage)}.feedback-page{padding-top:28px}.feedback-heading{margin-bottom:24px}.feedback-heading .page-title{font-size:39px;margin-bottom:14px}.feedback-heading>p:last-child{font-size:14px}.feedback-form{padding:20px 16px}.feedback-types>div{grid-template-columns:1fr;gap:8px}.feedback-type>span{min-height:64px;display:grid;grid-template-columns:112px 1fr;align-items:center;gap:10px;padding:12px}.feedback-type input:checked+span{box-shadow:inset 2px 0 var(--ink)}.feedback-type strong{font-size:13px}.feedback-type small{font-size:11px}.feedback-submit{gap:12px}.feedback-submit .button{width:100%;justify-content:center}.feedback-submit p{min-width:0;flex-basis:100%}.feedback-aside dl{display:block;margin-top:16px}.feedback-aside dl>div{border-bottom:1px solid var(--line)}.feedback-field textarea{min-height:180px}}


/* A quiet row of links, followed by a matched pair of utility controls. */
.header-actions{gap:4px;flex-shrink:0}
.header-actions .feedback-link,.header-actions .help-link{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:44px;padding:0 10px;margin:0;border:0;border-radius:6px;font-size:13px;font-weight:500;line-height:1;color:var(--muted);white-space:nowrap;transition:background .18s,color .18s}
.header-actions .feedback-link svg{display:none}
.header-actions .help-link svg{display:none}
.header-actions .feedback-link:hover,.header-actions .help-link:hover,.header-actions a[aria-current="page"]{color:var(--ink);background:var(--sage)}
.header-actions .feedback-link[aria-current="page"] span{text-decoration:none}
.header-tools{display:flex;align-items:center;gap:2px;margin-left:10px;padding-left:10px;position:relative}
.header-tools::before{content:'';position:absolute;left:0;top:12px;bottom:12px;width:1px;background:var(--line)}
.header-tools .icon-button{width:44px;height:44px;border:0;border-radius:6px;background:transparent;color:var(--muted)}
.header-tools .icon-button:hover{background:var(--sage);color:var(--ink);filter:none}
.header-actions svg{width:20px;height:20px;flex:none;stroke-linecap:round;stroke-linejoin:round}
.header-actions a:active,.header-tools .icon-button:active{background:var(--sage);color:var(--ink)}
@media(max-width:1100px){
  .header-actions .feedback-link,.header-actions .help-link{width:44px;padding:0}
  .header-actions .feedback-link svg,.header-actions .help-link svg{display:block}
  .header-actions .feedback-link span,.header-actions .help-link span{display:none}
  .header-tools{margin-left:6px;padding-left:6px}
}
@media(max-width:650px){
  .header-inner{padding-top:8px;padding-left:16px;padding-right:16px}
  .header-actions{gap:0}
  .header-tools{gap:0;margin-left:4px;padding-left:5px}
  .brand{font-size:21px}
  .brand-mark{width:22px;height:22px;margin-right:8px}
}
@media(max-width:360px){
  .header-inner{padding-left:12px;padding-right:12px}
  .brand{font-size:18px}
  .brand-mark{width:20px;height:20px;margin-right:6px}
}
@media(max-width:340px){
  .brand-name{display:none}
  .brand-mark{margin-right:0}
}

.home-tutorial{margin-top:40px;padding-top:8px;border-top:1px solid var(--line)}
.home-tutorial .home-intro{max-width:800px;margin-inline:auto;padding-bottom:0}
.home-intro h2{font:clamp(28px,4vw,36px)/1.2 var(--serif);margin:0 0 18px}
.home-learn-actions{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px 24px;margin-top:24px}
.home-learn-actions .button{margin-top:0}
.home-learn-actions .text-button{min-height:44px}
@media(max-width:650px){.home-tutorial{margin-top:28px}}

.focus-mode .home-tutorial{display:none}

.lesson-coach .coach-lesson{font-size:10px;font-weight:600;letter-spacing:1px;text-transform:uppercase;color:var(--gold);margin:0 0 9px}
.lesson-coach .coach-actions{margin-top:10px;padding-top:8px;border-top:1px solid var(--line)}
.lesson-coach .coach-independent{line-height:1.6}

/* Keep the full domain beside the utility controls on small screens. */
@media(min-width:1101px){.header-inner{gap:32px}}
@media(max-width:650px){.brand{font-size:20px;letter-spacing:-.8px}.brand-mark{width:20px;height:20px;margin-right:7px}.header-actions .feedback-link,.header-actions .help-link{width:44px}.header-tools .icon-button{width:44px}.header-tools{margin-left:2px;padding-left:3px}}
@media(max-width:374px){.brand{font-size:18px}.brand-mark{width:18px;height:18px;margin-right:6px}}