/* V58: the existing artwork at page width; layout and motion only. */
#studentLibrary .v47-rule-overlay{inset:env(safe-area-inset-top,0px) env(safe-area-inset-right,0px) env(safe-area-inset-bottom,0px) env(safe-area-inset-left,0px);overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;scrollbar-width:none;opacity:1;transition:none}
#studentLibrary .v47-rule-overlay::-webkit-scrollbar{display:none}
#studentLibrary .v47-rule-overlay>.rule-overlay-scrim{position:fixed;inset:env(safe-area-inset-top,0px) env(safe-area-inset-right,0px) env(safe-area-inset-bottom,0px) env(safe-area-inset-left,0px);padding:0;border:0;border-radius:0;background:#110924ba;backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}
#studentLibrary .v47-rule-stage{position:absolute;left:0;top:0;width:100%;height:auto;aspect-ratio:2/3;max-height:none;transform:none;transform-origin:center;animation:none;transition:none;perspective:1200px;outline:none}
#studentLibrary .v47-rule-stage .rule-flip-card{transform:rotateY(0deg);transition:none}
#studentLibrary .v47-rule-stage .rule-flip-card.flipped{transform:rotateY(180deg)}
#studentLibrary .v47-rule-stage .rule-flip-face{filter:none}
#studentLibrary .v47-rule-stage .rule-flip-face>img{object-fit:contain}
#studentLibrary .v47-rule-overlay[data-phase=opening] .rule-directory,
#studentLibrary .v47-rule-overlay[data-phase=closing] .rule-directory{pointer-events:none}
#studentLibrary .v47-rule-stage .rule-directory-inner{inset:10% 12% 18%;gap:8px;font-family:var(--wordbook-ui-font)}
#studentLibrary .v47-rule-stage .rule-directory-inner h3{font:700 20px/1.2 var(--wordbook-ui-font);color:#4b2e60;margin:0 0 2px}
#studentLibrary .v47-rule-stage .rule-directory-search{flex:0 0 40px;min-height:40px}
#studentLibrary .v47-rule-stage .rule-directory-search input{height:40px;min-height:40px;padding:6px 10px;border:1px solid #c6a778;border-radius:10px;background:#fff5dfb8;color:#523c5a;font:16px/1.4 var(--wordbook-ui-font)}
#studentLibrary .v47-rule-stage .rule-directory-list{padding:0;scrollbar-width:thin;scrollbar-color:#a680ad transparent}
#studentLibrary .v47-rule-stage .rule-directory-list button{border:0;border-bottom:1px solid #b59a765e;border-radius:0;background:transparent;color:#4d354b;padding:9px 0;min-height:48px;gap:8px;box-shadow:none}
#studentLibrary .v47-rule-stage .rule-info b{font:650 13px/1.35 var(--wordbook-ui-font)}
#studentLibrary .v47-rule-stage .rule-info small{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:#806975;font:11.5px/1.4 var(--wordbook-ui-font);margin-top:3px}
#studentLibrary .v47-rule-stage .rule-num{width:25px;height:25px;flex-basis:25px;font:700 11px/1 Georgia,serif;background:#f7e8cd;color:#634572;border-color:#c8a678}
#studentLibrary .v47-rule-stage .rule-directory-return{flex:none;align-self:center;min-height:32px;margin:0;padding:5px 14px;border:1px solid #bea176;border-radius:12px;background:#f7e9cf;color:#654878;font:600 12px/1.3 var(--wordbook-ui-font)}
/* Full-width 1:2 artwork: center vertically and clip decoration beyond the safe viewport. */
#studentLibrary .sl-rule-shade{inset:env(safe-area-inset-top,0px) env(safe-area-inset-right,0px) env(safe-area-inset-bottom,0px) env(safe-area-inset-left,0px);display:block;padding:0;overflow:hidden;background:#110d24dc;scrollbar-width:none}
#studentLibrary .sl-rule-dialog{position:relative;display:block;box-sizing:border-box;width:100%;max-width:none;height:auto;aspect-ratio:887/1774;max-height:none;margin:0;padding:0;overflow:visible;border:0;border-radius:0;background:none;box-shadow:none;gap:0}
#studentLibrary .sl-rule-art{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:contain;pointer-events:none;user-select:none}
#studentLibrary .sl-rule-dialog::before{display:none}
#studentLibrary .sl-rule-dialog>.sl-rule-header{position:absolute;z-index:2;left:14%;right:17%;top:12%;display:grid;grid-template-columns:70px minmax(0,1fr);align-items:center;gap:8px;min-height:38px}
#studentLibrary .sl-rule-header h2{min-width:0;margin:0;font:700 20px/1.2 var(--wordbook-ui-font);color:#4b2e60;text-align:center;overflow-wrap:anywhere;outline:none}
#studentLibrary .sl-rule-header [data-sl=rule-close]{align-self:start;margin:0;padding:4px 0;min-width:0;min-height:30px;border:0;border-radius:0;background:transparent;color:#654878;font:600 12px/1.25 var(--wordbook-ui-font);box-shadow:none;white-space:nowrap}
#studentLibrary .sl-rule-dialog>.sl-rule-body{position:absolute;left:14%;right:17%;top:21%;bottom:14%;min-height:0;padding:0 3px 8px 0;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#a680ad transparent;color:#49352d;font:12px/1.65 var(--wordbook-ui-font)}
#studentLibrary .sl-rule-body p{margin:0 0 10px;white-space:pre-wrap}
#studentLibrary .sl-rule-body h3{margin:12px 0 6px;color:#604374;font:650 12.5px/1.4 var(--wordbook-ui-font)}
#studentLibrary .sl-rule-body .sl-rule-caution{padding:7px 8px;margin:8px 0;border:0;border-left:2px solid #b39470;border-radius:0;background:#e8d2b357;color:#755560;font-size:11.5px}
#studentLibrary .sl-rule-body .sl-rule-words{margin-top:12px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px 8px}
#studentLibrary .sl-rule-body .sl-rule-words>h3,#studentLibrary .sl-rule-body .sl-rule-words>p{grid-column:1/-1}
#studentLibrary .sl-rule-body .sl-rule-words>h3{margin:0 0 2px}
#studentLibrary .sl-rule-body .sl-rule-words button{display:flex;flex-direction:column;align-items:flex-start;gap:2px;min-width:0;min-height:40px;margin:0;padding:6px 7px;border:1px solid #c9ac81;border-radius:8px;background:#fff3db83;color:#5e416a;text-align:left;box-shadow:none;overflow-wrap:anywhere}
#studentLibrary .sl-rule-body .sl-rule-words button b{display:block;font:700 15px/1.3 Georgia,serif}
#studentLibrary .sl-rule-body .sl-rule-words button small{display:block;font:11px/1.35 var(--wordbook-ui-font);color:#79615f;margin-top:2px}
#studentLibrary .sl-rule-body .sl-knowledge-members{margin:0;padding:0;list-style:none}
#studentLibrary .sl-rule-body .sl-knowledge-members li{padding:6px 0;border-bottom:1px solid #b59a7640}