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(width<=1180px){.site-header{grid-template-columns:auto 1fr}.brand-tagline{display:none}.game-stage{grid-template-columns:1fr}.oracle-board-shell{--board-grid-size:min(510px, calc(100vw - 326px))}.oracle-rail{border-top:1px solid var(--oracle-line);border-left:0;grid-template-columns:1.1fr 1fr 1fr auto;align-items:center;gap:20px;margin:0;padding:18px 22px;display:grid}.hint-card,.progress-card,.time-card{border-right:1px solid var(--oracle-line);border-bottom:0;min-height:0;padding:0 18px}.rail-heading,.session-badge{display:none}.pause-button{margin:0}.control-dock{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (width<=760px){body{background-image:url(/assets/oracle-stage-dark-mobile.webp)}.mode-bar,.oracle-board-shell,.oracle-rail,.control-dock,.oracle-modal{background-image:url(/assets/oracle-panel-dark-mobile.webp)}:root[data-theme=light] body{background-image:url(/assets/oracle-stage-light-mobile.webp)}:root[data-theme=light] .mode-bar,:root[data-theme=light] .oracle-board-shell,:root[data-theme=light] .oracle-rail,:root[data-theme=light] .control-dock,:root[data-theme=light] .oracle-modal{background-image:url(/assets/oracle-panel-light-mobile.webp)}.site-header{grid-template-columns:1fr auto;gap:8px;min-height:64px;padding:8px 12px}.brand{letter-spacing:.16em;gap:8px;font-size:18px}.brand img{width:36px;height:36px}.locale-nav{display:none}.header-actions{gap:2px}.header-actions .icon-button{min-width:44px;min-height:44px}.mode-bar{grid-template-columns:1fr auto;gap:6px 14px;min-height:104px;padding:0 12px}.mode-tabs{grid-column:1/-1;gap:18px;min-width:0;overflow-x:auto}.mode-tabs button{white-space:nowrap;font-size:16px}.oracle-date{font-size:15px}.streak-chip{font-size:11px}.streak-chip svg{width:30px;height:30px}.game-stage{gap:10px;min-height:0;padding:10px 8px 0}.stage-status{min-height:26px;padding:0 6px;font-size:12px;position:static}.oracle-board-shell{--clue-gutter:clamp(58px, 21vw, 78px);--column-gutter:76px;--board-grid-size:min(426px, calc(100vw - 28px - var(--clue-gutter)));width:100%;height:calc(var(--column-gutter) + var(--board-grid-size) + 18px);border-radius:10px;margin:0}.oracle-board-transform{padding:8px 6px 10px}.corner-sigil{padding:0 6px 6px 0;font-size:10px}.row-clue{grid-template-columns:17px minmax(0,1fr);gap:2px;padding:0 3px 0 0;font-size:clamp(8px,2.7vw,12px)}.row-clue .clue-check{display:none}.clue-values{padding:1px 2px}.column-clue{padding:1px 0 5px;font-size:clamp(8px,2.5vw,12px)}.cell-mark{font-size:clamp(11px,5vw,19px)}.oracle-rail{grid-template-columns:1fr auto;gap:10px;padding:12px;display:grid}.hint-card{border-right:0;border-bottom:1px solid var(--oracle-line);grid-column:1/-1;min-height:72px;padding:0 0 10px}.hint-card p{font-size:14px}.progress-card{border:0;padding:0}.time-card,.rail-heading,.session-badge{display:none}.pause-button{width:44px;height:44px}.control-dock{min-height:0;padding:7px 6px max(7px, env(safe-area-inset-bottom));grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;position:sticky;bottom:0}.dock-button{min-width:0;min-height:52px;box-shadow:none;border-radius:8px;gap:2px;padding:4px 2px;font-size:11px}.dock-button svg{width:22px;height:22px}.hint-levels{grid-template-columns:repeat(3,minmax(44px,1fr));gap:0;display:grid;position:static}.hint-split{grid-column:span 2;grid-template-columns:44px minmax(132px,1fr);display:grid}.hint-split>.dock-button span{display:none}.hint-levels button{width:auto;min-width:44px;height:44px;padding:0;font-size:12px}.learn-section{grid-template-columns:1fr;gap:24px;padding:56px 18px}.learn-section h2{font-size:34px}.help-content{grid-template-columns:1fr}footer{flex-direction:column;justify-content:center;align-items:flex-start;min-height:82px;padding:14px 18px}.library-grid{grid-template-columns:1fr}.result-stats{grid-template-columns:repeat(2,1fr)}.oracle-modal>:not(.modal-header){margin:18px}}@media (width<=760px) and (prefers-color-scheme:light){:root[data-theme=system] body{background-image:url(/assets/oracle-stage-light-mobile.webp)}:root[data-theme=system] .mode-bar,:root[data-theme=system] .oracle-board-shell,:root[data-theme=system] .oracle-rail,:root[data-theme=system] .control-dock,:root[data-theme=system] .oracle-modal{background-image:url(/assets/oracle-panel-light-mobile.webp)}}@media (width<=370px){.brand span{font-size:15px}.header-actions .icon-button:first-of-type{display:none}.mode-tabs{gap:14px}.control-dock{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (height<=640px) and (orientation:landscape){.site-header,.mode-bar{min-height:54px}.mode-bar{grid-template-columns:1fr auto auto}.mode-tabs{grid-column:auto}.game-stage{grid-template-columns:1fr 230px}.oracle-board-shell{--board-grid-size:min(510px, calc(100vh - 320px), calc(100vw - 536px));height:calc(100vh - 170px)}.oracle-rail{display:block}}@media 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