:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#081111;color:#edf7f2;--ink:#edf7f2;--muted:#9eb1aa;--panel:#101c1b;--panel-2:#152624;--line:#35504b;--accent:#87e6b7;--accent-2:#f0c96e;--danger:#ff9890;--cell-gap:2px}
*{box-sizing:border-box}[hidden]{display:none!important}html,body{margin:0;min-width:100%;min-height:100%;background:#081111}body{min-height:100svh;padding:max(8px,env(safe-area-inset-top)) max(8px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));background:radial-gradient(circle at 50% -20%,#18342e 0,#081111 55%);overflow-x:hidden}button,select{font:inherit}button,select{color:inherit;border:1px solid #45635d;background:#152522;border-radius:10px}button{cursor:pointer}button:disabled{cursor:default;opacity:.42}button:focus-visible,select:focus-visible,[role=gridcell]:focus-visible{outline:3px solid #f2d584;outline-offset:2px}.app{width:min(100%,940px);margin:0 auto;display:grid;gap:8px}.topbar{min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:2px 4px}.brand{display:flex;align-items:center;gap:10px}.brand-mark{width:34px;height:34px;display:grid;grid-template-columns:repeat(3,1fr);gap:2px;transform:skew(-5deg)}.brand-mark i{border:2px solid var(--accent);background:#17352d}.brand-mark i:nth-child(2){height:70%;align-self:end}.brand-kicker{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.16em;color:var(--accent)}.brand strong{font-size:clamp(22px,4vw,32px);line-height:1;letter-spacing:-.04em}.brand em{font-style:normal;color:var(--accent)}.header-actions{display:flex;gap:6px}.icon-button{min-width:44px;height:44px;padding:0 11px;display:flex;align-items:center;justify-content:center;gap:6px}.help-button strong{font-size:14px}.game-panel{background:rgba(14,25,24,.94);border:1px solid #29443f;border-radius:18px;padding:8px;display:grid;gap:7px;box-shadow:0 14px 50px rgba(0,0,0,.24)}.mode-strip{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}.mode-strip button{position:relative;min-height:46px;padding:5px 10px;text-align:left;display:grid;align-content:center}.mode-strip strong{font-size:16px}.mode-strip small{font-size:14px;color:var(--muted)}.mode-strip button[aria-pressed=true]{border-color:var(--accent);background:#17342d}.new-dot{position:absolute;right:7px;top:6px;padding:2px 5px;border-radius:999px;background:var(--accent-2);color:#231e0c;font-size:12px;font-weight:800}.context-bar{min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 4px}.context-copy{display:grid;grid-template-columns:auto auto;align-items:baseline;gap:3px 8px}.context-copy span{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted)}.context-copy strong{font-size:16px}.context-copy small{grid-column:1/-1;font-size:14px;color:#b9cbc5}.context-actions{display:flex;align-items:center;justify-content:flex-end;gap:6px;min-width:0}.assist-chip{padding:4px 7px;border:1px solid var(--accent-2);border-radius:999px;color:#ffe29a;font-size:14px;font-weight:700}.profile-select{display:flex;align-items:center;gap:5px;font-size:14px;color:var(--muted)}.profile-select select{min-height:44px;padding:4px 25px 4px 8px}.today-button{min-height:44px;padding:6px 10px;font-size:14px;border-color:var(--accent-2);color:#ffe9af}.play-zone{display:grid;place-items:center;gap:5px;min-height:0}.teach-line{margin:0;min-height:20px;color:#b6c9c2;font-size:16px;text-align:center}.board-wrap{--cols:6;--rows:6;position:relative;width:min(100%,clamp(260px,58vh,520px));aspect-ratio:1;border:2px solid #698079;border-radius:12px;background:#0b1514;padding:3px;box-shadow:inset 0 0 0 1px #1f3531;touch-action:none;user-select:none;-webkit-user-select:none}.board,.region-layer,.preview-layer{position:absolute;inset:3px;display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));grid-template-rows:repeat(var(--rows),minmax(0,1fr));gap:var(--cell-gap)}.board{z-index:1}.region-layer{z-index:2;pointer-events:none}.preview-layer{z-index:3;pointer-events:none}.board-cell{position:relative;min-width:24px;min-height:24px;padding:0;border:1px solid #263d39;border-radius:4px;background:#12201e;color:var(--ink);display:grid;place-items:center;font-size:clamp(14px,3.4vw,20px)}.board-cell::after{content:"";position:absolute;inset:3px;border:1px dotted transparent;border-radius:3px}.board-cell[data-covered=true]::after{border-color:#7aa293}.board-cell.is-hint{box-shadow:inset 0 0 0 2px var(--accent-2)}.board-cell.is-hint::before{content:"•";position:absolute;right:3px;top:-2px;color:var(--accent-2);font-size:16px}.clue-number{font-weight:850;position:relative;z-index:1}.region-box,.preview-box{margin:1px;border-radius:6px;transition:border-color .14s ease,background-color .14s ease,opacity .14s ease,transform .14s ease}.region-box{border:2px solid #76b99f;background:rgba(74,139,113,.22);box-shadow:inset 0 0 0 1px rgba(230,255,244,.12);animation:tile-settle .16s ease-out}.region-box::after{content:"✓";position:absolute;right:4px;bottom:1px;font-size:9px;color:#bff5da}.preview-box{border:2px dashed var(--accent-2);background:rgba(240,201,110,.12)}.preview-box.is-invalid{border-color:var(--danger);background:rgba(255,152,144,.08);border-style:dotted}.preview-box.is-replacing{box-shadow:inset 0 0 0 2px #f0c96e}.region-box.is-victim{border-style:dashed;border-color:#f0c96e;background:rgba(240,201,110,.12);opacity:.42;transform:scale(.975)}.ghost-box{border:2px dashed #79c8ff;background:repeating-linear-gradient(135deg,rgba(121,200,255,.08) 0 6px,rgba(121,200,255,.18) 6px 12px)}.board-wrap[data-complete=true] .region-box{animation:mosaic-settle .24s ease-out}.board-wrap[data-complete=true]{border-color:var(--accent);box-shadow:inset 0 0 0 1px #1f3531,0 0 0 2px rgba(135,230,183,.12)}@keyframes tile-settle{from{opacity:.62;transform:scale(.985)}to{opacity:1;transform:scale(1)}}@keyframes mosaic-settle{0%{transform:scale(.985)}65%{transform:scale(1.008)}100%{transform:scale(1)}}.board-actions{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:5px}.board-actions button{min-height:44px;padding:5px 3px;display:grid;place-items:center;align-content:center;gap:1px}.board-actions button span{font-size:16px;line-height:1}.board-actions button strong{font-size:14px}.next-button{grid-column:span 2;border-color:var(--accent);background:#174637}.skip-button{border-color:#607a74}.feedback-zone{display:grid;gap:2px;min-height:48px;text-align:center}.preview-facts,.status-message,.control-hint{margin:0}.preview-facts,.status-message{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:20px;height:20px;min-height:20px}.preview-facts{font-size:14px;color:#d7e8e2}.preview-facts[data-tone=invalid]{color:#ffb2aa;font-weight:650}.preview-facts[data-tone=valid]{color:#aaf0ce}.status-message{font-size:14px;color:#aebfb9;min-height:15px}.status-message.success{color:#aaf0ce}.status-message.error{color:#ffb2aa}.control-hint{font-size:14px;color:#7e9890}.game-tip{position:fixed;left:50%;bottom:max(12px,env(safe-area-inset-bottom));z-index:20;display:flex;gap:6px;align-items:center;max-width:min(92vw,560px);min-height:44px;transform:translate(-50%,12px);opacity:0;transition:opacity .2s ease,transform .2s ease;border-color:#5f8e7e;background:#112822;padding:8px 14px}.game-tip.is-visible{opacity:1;transform:translate(-50%,0)}.game-tip.is-fading{opacity:0;transform:translate(-50%,6px)}.app-dialog{width:min(92vw,520px);max-height:min(84svh,620px);padding:0;border:1px solid #55756d;border-radius:16px;background:#111e1c;color:var(--ink);overflow:hidden}.app-dialog::backdrop{background:rgba(0,0,0,.66)}.dialog-card{display:grid;grid-template-rows:auto minmax(0,1fr) auto;max-height:min(84svh,620px);overflow:hidden}.dialog-header{display:flex;justify-content:space-between;gap:12px;padding:16px 16px 10px;border-bottom:1px solid #2e4842}.dialog-kicker{font-size:12px;text-transform:uppercase;letter-spacing:.15em;color:var(--accent)}.dialog-header h2{margin:3px 0 0;font-size:22px}.dialog-close{width:44px;height:44px}.dialog-content{padding:14px 16px;overflow:auto;display:grid;gap:12px;line-height:1.5;font-size:16px}.dialog-content p{margin:0}.rule-stack{display:grid;gap:8px}.rule-row{display:grid;grid-template-columns:34px 1fr;gap:8px;align-items:start}.rule-row>b{width:30px;height:30px;display:grid;place-items:center;border:1px solid #55756d;border-radius:7px;color:var(--accent)}.rule-row span{display:grid;gap:2px}.rule-row small{color:var(--muted);font-size:14px;line-height:1.45}.setting-row{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:9px 0;border-bottom:1px solid #263c37}.setting-row>span{display:grid}.setting-row small{color:var(--muted);font-size:14px}.dialog-actions{display:flex;justify-content:flex-end;gap:7px;padding:10px 16px 16px}.dialog-actions button{min-height:44px;padding:8px 14px}.dialog-actions .primary{background:#1d5c47;border-color:var(--accent)}.dialog-actions .danger{border-color:#b96b65;color:#ffc3be}.result-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.result-card{padding:10px 6px;border:1px solid #34504a;border-radius:10px;text-align:center;display:grid}.result-card strong{font-size:17px}.result-card span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
html[data-motion-profile=instant] *,html[data-motion-profile=instant] *::before,html[data-motion-profile=instant] *::after{scroll-behavior:auto!important;transition-duration:1ms!important;animation-duration:1ms!important;animation-iteration-count:1!important}
html[data-webgames-display-mode=fullscreen],html[data-webgames-display-mode=fullscreen] body{width:100%;height:100%;min-height:100%;overflow:hidden}html[data-webgames-display-mode=fullscreen] body{height:100dvh;padding:max(8px,env(safe-area-inset-top)) max(8px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left))}html[data-webgames-display-mode=fullscreen] .app{width:100%;max-width:none;height:100%;margin:0;grid-template-rows:auto minmax(0,1fr);gap:8px}html[data-webgames-display-mode=fullscreen] .game-panel{min-width:0;min-height:0;align-self:stretch}html[data-webgames-display-mode=fullscreen] .board-wrap{width:min(100%,calc(100dvh - 150px),680px);max-width:none}
@media(min-width:900px) and (min-height:560px){html[data-webgames-display-mode=fullscreen] .game-panel{grid-template-columns:minmax(220px,.72fr) minmax(420px,1.45fr) minmax(220px,.72fr);grid-template-rows:auto minmax(0,1fr);grid-template-areas:"mode play context" "actions play feedback";align-items:center;padding:clamp(10px,1.2vw,18px);gap:clamp(10px,1.25vw,20px)}html[data-webgames-display-mode=fullscreen] .mode-strip{grid-area:mode}html[data-webgames-display-mode=fullscreen] .context-bar{grid-area:context;display:grid;align-content:center}html[data-webgames-display-mode=fullscreen] .play-zone{grid-area:play;align-self:stretch;grid-template-rows:auto minmax(0,1fr);align-content:center}html[data-webgames-display-mode=fullscreen] .board-actions{grid-area:actions;grid-template-columns:repeat(3,minmax(0,1fr));align-self:center}html[data-webgames-display-mode=fullscreen] .feedback-zone{grid-area:feedback;align-self:center}html[data-webgames-display-mode=fullscreen] .board-wrap{width:min(100%,calc(100dvh - 130px),680px)}html[data-webgames-display-mode=fullscreen] .teach-line{font-size:16px}html[data-webgames-display-mode=fullscreen] .preview-facts,html[data-webgames-display-mode=fullscreen] .status-message{font-size:14px}html[data-webgames-display-mode=fullscreen] .control-hint{font-size:14px}}
@media(max-width:600px){body{padding:max(5px,env(safe-area-inset-top)) max(5px,env(safe-area-inset-right)) max(5px,env(safe-area-inset-bottom)) max(5px,env(safe-area-inset-left))}.app{gap:4px}.topbar{min-height:43px}.brand-kicker{display:none}.brand-mark{width:28px;height:28px}.brand strong{font-size:22px}.help-button strong{display:none}.game-panel{padding:5px;gap:4px;border-radius:13px}.mode-strip button{min-height:44px}.context-bar{min-height:38px}.context-copy small{font-size:14px}.profile-select span{display:none}.profile-select select{min-height:44px}.teach-line{font-size:16px}.board-wrap{width:min(100%,calc(100svh - 304px),480px);min-width:240px}.board-actions{grid-template-columns:repeat(6,minmax(0,1fr));gap:3px}.board-actions button{min-height:44px;border-radius:8px}.board-actions button strong{font-size:14px}.control-hint{display:none}.feedback-zone{height:42px;min-height:42px;overflow:hidden}.preview-facts,.status-message{font-size:14px;height:20px;min-height:20px;line-height:20px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dialog-actions{flex-wrap:wrap}.result-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:350px){.context-copy span{display:none}.context-copy strong{font-size:16px}.assist-chip{font-size:14px;padding:3px 5px}.board-wrap{min-width:0;width:min(100%,calc(100svh - 248px))}.board-actions button span{display:none}.board-actions button strong{font-size:14px}.mode-strip small{display:none}}
@media(max-width:600px) and (max-height:600px){.board-wrap{width:min(100%,calc(100vw - 48px))}}
@media(max-height:650px) and (min-width:601px){.app{max-width:820px}.topbar{min-height:42px}.game-panel{grid-template-columns:minmax(210px,260px) minmax(280px,1fr) minmax(210px,250px);grid-template-areas:"mode play context" "actions play feedback";align-items:center}.mode-strip{grid-area:mode}.context-bar{grid-area:context;display:grid}.play-zone{grid-area:play}.board-actions{grid-area:actions;grid-template-columns:repeat(3,1fr)}.feedback-zone{grid-area:feedback}.board-wrap{width:min(100%,calc(100svh - 112px),520px)}.control-hint{display:none}}
@media(max-height:650px) and (min-width:601px) and (max-width:760px){.app{max-width:100%}.game-panel{grid-template-columns:minmax(0,1fr);grid-template-areas:none;align-items:stretch}.mode-strip,.context-bar,.play-zone,.board-actions,.feedback-zone{grid-area:auto}.context-bar{display:flex}.board-actions{grid-template-columns:repeat(6,minmax(0,1fr))}.board-wrap{width:min(100%,calc(100svh - 112px),520px);min-width:240px}}
.tutorial-presentation{margin:0 0 14px}.rectweave-presentation-demo{display:grid;gap:12px;padding:16px;border:1px solid rgba(151,214,190,.22);border-radius:18px;background:linear-gradient(160deg,rgba(24,57,54,.96),rgba(10,28,27,.98));box-shadow:0 18px 48px rgba(0,0,0,.25)}.rectweave-presentation-header{display:flex;align-items:end;justify-content:space-between;gap:12px}.rectweave-presentation-header span{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.rectweave-presentation-equation{font-size:clamp(1.1rem,4vw,1.55rem);color:var(--accent)}.rectweave-presentation-board{position:relative;width:min(100%,300px);aspect-ratio:1;margin:auto}.rectweave-presentation-cells,.rectweave-presentation-overlays{position:absolute;inset:0;display:grid;grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(5,1fr);gap:3px}.rectweave-presentation-cell{display:grid;place-items:center;border-radius:7px;background:rgba(235,247,241,.08);border:1px solid rgba(235,247,241,.12)}.rectweave-presentation-cell b{display:grid;place-items:center;min-width:28px;min-height:28px;border-radius:50%;background:#dff7e9;color:#17312f;font-size:1rem;box-shadow:0 4px 14px rgba(0,0,0,.22)}.rectweave-presentation-overlays{pointer-events:none}.rectweave-presentation-region,.rectweave-presentation-preview{display:block;margin:2px;border-radius:9px;border:3px solid rgba(113,219,171,.88);background:rgba(113,219,171,.13);box-shadow:inset 0 0 0 1px rgba(4,19,17,.45)}.rectweave-presentation-preview{border-style:dashed;border-color:#ffd17b;background:rgba(255,209,123,.12)}.rectweave-presentation-demo[data-complete="true"] .rectweave-presentation-region{animation:mosaic-settle .34s ease both}.rectweave-presentation-caption{margin:0;min-height:2.7em;text-align:center;color:#e6f0ec;font-size:1rem;line-height:1.35}@media(max-width:420px){.rectweave-presentation-demo{padding:12px;gap:9px}.rectweave-presentation-board{width:min(100%,220px)}.rectweave-presentation-caption{font-size:1rem}}
html[data-presentation-surface=preview],html[data-presentation-surface=preview] body{width:100%;height:100%;overflow:hidden}html[data-presentation-surface=preview] .app{visibility:hidden}#areaSplitPresentationPreview .rectweave-presentation-demo{grid-template-columns:minmax(0,1.18fr) minmax(180px,.82fr);grid-template-areas:"board header" "board caption";align-items:center;column-gap:20px;width:min(560px,calc(100vw - 40px))!important;max-height:calc(100vh - 40px)!important;padding:14px 16px}#areaSplitPresentationPreview .rectweave-presentation-header{grid-area:header;align-self:end;display:grid;justify-items:start;gap:8px}#areaSplitPresentationPreview .rectweave-presentation-board{grid-area:board;width:min(100%,250px)}#areaSplitPresentationPreview .rectweave-presentation-caption{grid-area:caption;align-self:start;text-align:left;font-size:1rem;min-height:0}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:1ms!important;animation-duration:1ms!important;animation-iteration-count:1!important}}
html[data-media-capture=true] body{display:grid;place-items:center;min-height:100svh;padding:24px}html[data-media-capture=true] .app{width:min(96vw,1080px);max-width:1080px;margin:0;gap:10px}html[data-media-capture=true] .game-panel{grid-template-columns:minmax(230px,290px) minmax(340px,1fr) minmax(230px,290px);padding:12px;gap:10px}html[data-media-capture=true] .board-wrap{width:min(100%,470px)}