@import "https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard-dynamic-subset.min.css";:root{--mono:ui-monospace, Consolas, monospace;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (width<=1024px){:root{font-size:16px}}body{margin:0}#root{box-sizing:border-box;width:100%;min-height:100svh;margin:0;display:block}code{font-family:var(--mono);border-radius:4px;padding:4px 8px;font-size:15px;line-height:135%}:root{--lineHeightPx:24px;--fontSize:16px;--baseWeight:400;--boldWeight:700;--bg:#f5f7fb;--card:#fff;--text:#0f172a;--muted:#64748b;--border:#e2e8f0;--highlight-opacity:1;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{-webkit-tap-highlight-color:transparent}.container.dark{--lightningcss-light: ;--lightningcss-dark:initial;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0b1220;--card:#0f172a;--text:#e2e8f0;--muted:#94a3b8;--border:#1f2a44;--highlight-opacity:.18}.container{background:var(--bg);min-height:100vh;padding:16px var(--sideMargin,0px);font-size:var(--fontSize);font-weight:var(--baseWeight);color:var(--text);text-align:left;flex-direction:column;flex:auto;display:flex}.card{background:var(--card);border:1px solid var(--border);-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;border-radius:16px;flex-direction:column;flex:auto;width:100%;margin:0 auto;padding:16px;display:flex;box-shadow:0 20px 50px #0f172a0d}.card input,.card textarea,.card [contenteditable=true],.card .rich-text-editable{-webkit-user-select:text;user-select:text;-webkit-touch-callout:default}.question b,.question strong,.blind-content b,.blind-content strong,.rich-text-editable b,.rich-text-editable strong{font-weight:var(--boldWeight)!important}.markdown{line-height:var(--lineHeightPx)}.markdown p{margin:.32em 0}.markdown ul,.markdown ol{margin:.45em 0;padding-left:1.2em}.markdown li{margin:.2em 0}.markdown strong{font-weight:var(--boldWeight)!important}.markdown-html{margin:.32em 0}.problem-seq-number{color:var(--text);float:left;margin-right:.32em;font-weight:700}.markdown-html .html-break-line{margin-top:var(--lineHeightPx)}.markdown-html .html-break-line-list{padding-left:var(--hangingIndentEm,1.1em);text-indent:calc(-1 * var(--hangingIndentEm,1.1em))}.markdown-html .html-break-line:first-child{margin-top:0}.top-bar{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:8px;margin-bottom:14px;padding-bottom:12px;display:flex;position:relative}.top-bar-left{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.top-bar-right{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;margin-left:auto;display:flex;position:relative}.settings-icon-portrait{display:inline}@media (orientation:landscape){.settings-icon-portrait{display:none}}.mini-btn{border:1px solid var(--border);color:var(--text);cursor:pointer;white-space:nowrap;background:0 0;border-radius:10px;padding:8px 14px;font-weight:600;transition:border-color .15s,background .15s,color .15s}.mini-btn:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.mini-btn:disabled{opacity:.4;cursor:default;border-color:var(--border);color:var(--text);background:0 0}.style-wrap{position:relative}.style-panel{z-index:50;background:var(--card);border:1px solid var(--border);border-radius:16px;width:min(340px,100vw - 24px);max-height:min(70vh,520px);padding:14px;position:fixed;overflow:auto;box-shadow:0 20px 50px #0f172a1a}.style-tab-row{border-bottom:1px solid var(--border);gap:6px;margin-bottom:10px;padding-bottom:8px;display:flex}.style-tab-btn{border:1px solid var(--border);color:var(--muted);cursor:pointer;background:0 0;border-radius:8px;flex:1;padding:6px 10px;font-size:.88em;font-weight:600;transition:border-color .15s,background .15s,color .15s}.style-tab-btn.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.settings-audio-hint{color:var(--muted);margin:6px 0 2px;font-size:.8em;line-height:1.4}.style-row{color:var(--muted);grid-template-columns:90px 1fr 60px;align-items:center;gap:10px;margin:8px 0;font-size:.95em;display:grid}.style-row-single{margin:8px 0;display:block}.lh-controls-full{gap:6px;width:100%}.lh-controls-full .speed-btn{text-align:center;flex:1;padding:8px}.style-row input[type=range]{width:100%}.lh-controls{flex-wrap:wrap;grid-column:2/4;align-items:center;gap:8px;min-width:0;margin-bottom:8px;display:flex}.icon-btn{border:1px solid var(--border);width:34px;height:34px;color:var(--text);cursor:pointer;background:0 0;border-radius:10px;justify-content:center;align-items:center;font-weight:900;display:inline-flex}.num-input{border:1px solid var(--border);width:86px;color:var(--text);background:0 0;border-radius:10px;padding:8px 10px;font-weight:800}.weight-value{text-align:center;width:86px;padding:8px 10px;font-weight:800;display:inline-block}.style-value{text-align:right;color:var(--text);font-weight:800}.primary-btn{cursor:pointer;color:#fff;background:#2563eb;border:none;border-radius:14px;width:100%;padding:12px;font-weight:800}.primary-btn:hover{opacity:.9}.save-btn{border:1px solid var(--border);width:100%;color:var(--text);cursor:pointer;background:0 0;border-radius:14px;margin-top:10px;padding:10px;font-weight:800}.ghost-btn{border:1px solid var(--border);width:100%;color:var(--text);cursor:pointer;background:0 0;border-radius:14px;padding:12px;font-weight:700;transition:border-color .15s,background .15s,color .15s}.ghost-btn:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.ghost-btn:disabled{opacity:.4;cursor:not-allowed}.subjects{border:1px solid var(--border);background:var(--card);border-radius:12px;max-height:340px;margin-top:12px;padding:6px 10px;overflow:auto}.select-flow{flex-direction:column;flex:auto;min-height:0;padding-bottom:64px;display:flex}.subjects-flex{flex:auto;min-height:120px;max-height:none}.subject-lists-columns{flex-direction:column;display:flex}@media (orientation:landscape){.subject-lists-columns{flex-direction:row;align-items:flex-start;gap:14px}.subject-lists-columns>.subjects-flex{flex:50%;min-width:0}}.select-actions{flex-direction:column;flex:none;display:flex}.select-sticky-actions{z-index:40;background:var(--bg);border-top:1px solid var(--border);padding:10px 16px 12px;position:fixed;bottom:0;left:0;right:0}.start-btn-row{flex-wrap:nowrap;gap:6px;display:flex}.start-btn-row .mode-toggle-btn{flex:none;padding:0 8px;font-size:.78em}.start-btn-row .primary-btn{flex:1.4 1 0;min-width:0;padding-left:4px;padding-right:4px}.start-btn-row .primary-btn.small{flex:1 1 0;padding:10px 2px;font-size:.78em}.select-sticky-actions .primary-btn{background:var(--accent)}.select-sticky-actions .primary-btn.outline{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.select-actions .ghost-btn{margin-bottom:4px}.subject-item{border-bottom:1px dashed var(--border);background:var(--row-tint,transparent);border-radius:8px;justify-content:space-between;align-items:center;gap:8px;padding:10px 6px;transition:background .12s;display:flex}.subject-item:hover{background:var(--row-tint-hover,var(--accent-soft))}.subject-item label{cursor:pointer;flex:auto;align-items:center;gap:8px;min-width:0;display:flex}.subject-problem-count{color:var(--muted);margin-left:2px;font-size:.8em;font-weight:400}.subject-problem-count-added{color:var(--accent)}.follow-subnote-block{background:var(--card);border:1px solid #0000000f;border-radius:12px;margin-bottom:12px;padding-bottom:10px}.follow-subnote-block-collapsed{padding-bottom:0}.follow-subnote-block-collapsed .custom-subject-section-head,.follow-subnote-block:last-child{margin-bottom:0}.follow-request-box,.follow-active-box,.follow-incoming-box{border-bottom:1px dashed var(--border);padding:10px 8px}.follow-control-row{align-items:center;gap:8px;margin-bottom:8px;display:flex}.follow-btn-soft{color:var(--accent);cursor:pointer;background:linear-gradient(135deg,#8b5cf629,#3b82f629);border:none;border-radius:999px;align-items:center;gap:6px;padding:8px 16px;font-size:.92em;font-weight:600;transition:background .15s,transform .1s;display:inline-flex}.follow-btn-soft:hover{background:linear-gradient(135deg,#8b5cf642,#3b82f642)}.follow-btn-soft:active{transform:scale(.97)}.follow-btn-soft-small{padding:5px 12px;font-size:.85em}.follow-incoming-dot{color:#fff;background:#ef4444;border-radius:999px;justify-content:center;align-items:center;min-width:16px;height:16px;padding:0 4px;font-size:.7em;font-weight:700;display:inline-flex}.mode-toggle-btn{border:1px solid var(--border);background:var(--card);color:var(--muted);cursor:pointer;white-space:nowrap;border-radius:999px;flex:none;padding:0 14px;font-size:.85em;font-weight:600}.mode-toggle-btn:hover{background:var(--accent-soft);color:var(--accent)}.icon-only-btn.follow-visible-toggle{gap:3px;width:auto;padding:0 8px}.follow-visible-label{font-size:.72em;font-weight:600}.icon-only-btn.follow-visible-on{color:#16a34a;background:#16a34a14;border-color:#16a34a66}.icon-only-btn.follow-visible-off{color:#dc2626;background:#dc262614;border-color:#dc262666}.icon-only-btn.follow-visible-locked{color:var(--muted);border-color:var(--border);background:var(--bg);cursor:not-allowed}.follow-visible-indicator{border-radius:8px;justify-content:center;align-items:center;width:22px;height:22px;font-size:.9em;display:inline-flex}.follow-visible-indicator.follow-visible-on{background:#16a34a1f}.follow-visible-indicator.follow-visible-off{background:#dc26261f}.follow-modal-header{background:linear-gradient(135deg,#8b5cf624,#3b82f624);border-radius:16px 16px 0 0;align-items:center;gap:8px;margin:-20px -20px 14px;padding:16px 20px;font-size:1.1em;font-weight:700;display:flex}.follow-modal-header-icon{font-size:1.2em}.follow-list-section{background:var(--bg);border-radius:12px;margin-bottom:16px;padding:10px 12px}.follow-list-section strong{margin-bottom:8px;font-size:.92em;display:block}.follow-list-row{border-bottom:1px dashed var(--border);border-radius:8px;justify-content:space-between;align-items:center;padding:8px 10px;display:flex}.follow-list-row:hover{background:var(--accent-soft)}.follow-list-row:last-child{border-bottom:none}.follow-incoming-badge{color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:4px 10px;font-size:.8em}.follow-request-input-row{gap:8px;margin-top:6px;display:flex}.follow-request-input-row .app-modal-input{flex:auto}.follow-incoming-item{justify-content:space-between;align-items:center;padding:6px 0;display:flex}.follow-incoming-item .mini-btn{margin-left:6px}.mastery-control{flex-shrink:0;align-items:center;gap:3px;display:flex}.mastery-btn{width:20px;height:20px;color:var(--muted);cursor:pointer;filter:grayscale()opacity(.55);background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;font-size:.7em;transition:filter .15s;display:flex}.mastery-btn:hover{background:var(--accent-soft);color:var(--accent);filter:grayscale()opacity(.9)}.mastery-badge{border-radius:50%;justify-content:center;align-items:center;min-width:16px;height:16px;display:inline-flex}.mastery-badge-number{color:#fff;min-width:22px;padding:0 4px;font-size:.68em;font-weight:700}.mastery-badge-rainbow{background:conic-gradient(#ef4444,#f97316,#eab308,#10b981,#3b82f6,#8b5cf6,#ef4444)}.subject-item input[type=checkbox]{accent-color:var(--accent);width:16px;height:16px}.subject-item:last-child{border-bottom:none}.subject-category{margin-bottom:4px}.subject-category-header{cursor:pointer;background:var(--accent-soft);border-radius:8px;align-items:center;gap:8px;padding:9px 6px;font-weight:700;transition:background .12s;display:flex}.subject-category-header:hover{background:var(--border)}.cat-chevron{color:var(--muted,#888);font-size:.7em;transition:transform .15s;display:inline-block;transform:rotate(0)}.cat-chevron.open{transform:rotate(90deg)}.cat-checkbox-label{cursor:pointer;align-items:center;display:flex}.cat-checkbox-label input[type=checkbox]{accent-color:var(--accent);width:16px;height:16px}.cat-folder-icon{font-size:.95em}.cat-name{text-overflow:ellipsis;white-space:nowrap;flex:auto;min-width:0;overflow:hidden}.cat-count{color:var(--muted,#888);font-size:.8em;font-weight:500}.subject-category-body{border-left:2px solid var(--border);margin-left:12px;padding-left:22px}.subject-category-body .subject-item{padding:8px 6px}.custom-subject-tree{border-top:1px dashed var(--border);margin-top:14px;padding-top:10px}.custom-subject-section-head{align-items:center;gap:8px;margin-bottom:8px;font-weight:700;display:flex}.bulk-move-bar{border:1px dashed var(--accent);background:var(--accent-soft);color:var(--text);border-radius:10px;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px;padding:8px 10px;font-size:.88em;display:flex}.bulk-move-picker-wrap{align-items:center;gap:6px;display:flex}.custom-subject-category{border-radius:8px;overflow:hidden}.custom-cat-actions{flex-shrink:0;align-items:center;gap:4px;margin-left:auto;display:flex;position:relative}.icon-only-btn{border:1px solid var(--border);background:var(--card);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;gap:4px;width:26px;height:26px;padding:0;font-size:.85em;display:flex}.icon-only-btn:hover{background:var(--accent-soft)}.icon-only-btn.admin-danger-btn:hover{background:#dc262626}.rgb-dot-icon{background:#fb923c;border:1px solid #00000026;border-radius:50%;width:14px;height:14px;display:inline-block}.landscape-label{display:none}@media (orientation:landscape){.icon-only-btn{width:auto;min-width:26px;padding:0 10px;font-size:.85em}.custom-subject-delete-btn{padding:6px 12px;font-size:.95em}.landscape-label{display:inline}}.custom-color-picker-row{flex-wrap:wrap;gap:8px;padding:8px 10px;display:none}.custom-color-picker-row.open{display:flex}.custom-settings-row{box-sizing:border-box;border-top:1px dashed var(--border);flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:6px;width:100%;padding:8px 10px;display:flex}.custom-settings-panel{border-top:1px dashed var(--border);padding:8px 10px 10px}.custom-settings-actions{flex-wrap:wrap;gap:6px;margin-top:6px;display:flex}.custom-subject-item-wrap{border-bottom:1px solid var(--border)}.custom-subject-item-wrap:last-child,.custom-subject-item-wrap .subject-item{border-bottom:none}.custom-color-swatch-btn{cursor:pointer;border:1px solid #00000026;border-radius:50%;width:24px;height:24px;padding:0}.custom-subject-item{justify-content:space-between;align-items:center;gap:8px;display:flex}.custom-subject-item label{flex:auto}.custom-subject-actions{flex-shrink:0;align-items:center;gap:2px;display:flex}.custom-subject-delete-btn{color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:2px 6px;font-size:.9em}.custom-subject-delete-btn:hover{color:#dc2626;background:#dc26261f}.toggle-all{border:1px solid var(--border);width:100%;color:var(--text);cursor:pointer;background:0 0;border-radius:12px;padding:10px;font-weight:700;transition:border-color .15s,background .15s,color .15s}.toggle-all:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.select-split-row{flex-wrap:wrap;gap:8px;display:flex}.select-split-row .third-btn{flex:1 1 0;width:auto;min-width:90px;padding:10px 6px;font-size:.92em}.modal-list{flex-direction:column;gap:8px;max-height:50vh;margin:10px 0;display:flex;overflow-y:auto}.manager-row{border:1px solid var(--border);background:var(--card);border-radius:10px;align-items:center;gap:8px;padding:8px 10px;display:flex}.manager-name{cursor:pointer;flex:1;font-weight:700;line-height:1.3}.manager-name:hover{color:#2563eb}.manager-name.small{cursor:default;font-weight:400}.manager-name.small:hover{color:inherit}.del-btn{border:1px solid var(--border);color:#ef4444;cursor:pointer;background:0 0;border-radius:8px;flex:none;padding:5px 9px;font-size:.85em}.list-btn{text-align:left;border:1px solid var(--border);background:var(--card);cursor:pointer;border-radius:10px;width:100%;margin-bottom:6px;padding:10px 12px;display:block}.list-btn.new{color:#2563eb;font-weight:700}.ghost-btn.small{flex:none;width:auto;padding:5px 9px;font-size:.85em}.manager-row.bundle-row{flex-direction:column;align-items:stretch;gap:8px}.bundle-row-top{align-items:center;gap:8px;display:flex}.bundle-row-actions{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.bundle-mode-select{margin:6px 0 12px}.bundle-action-btn{cursor:pointer;white-space:nowrap;border:none;border-radius:10px;padding:8px 14px;font-weight:700}.bundle-action-btn.quiz{color:#fff;background:#2563eb;flex:1 1 0}.bundle-action-btn.quiz:hover{opacity:.9}.bundle-action-btn.acronym{color:#1e3a8a;background:#dbeafe;flex:1 1 0}.bundle-action-btn.acronym:hover{opacity:.85}.container.dark .bundle-action-btn.acronym{color:#bfdbfe;background:#3b82f647}.bundle-action-btn.view{background:var(--card);color:var(--text);border:1px solid var(--border);flex:none;padding:8px 12px}.bundle-action-btn.delete{color:#ef4444;border:1px solid var(--border);background:0 0;flex:none;padding:3px 8px;font-size:.8em;font-weight:600}.bundle-action-btn.wide{flex:auto;padding:10px 14px}.user-info-bar{border:1px solid var(--border);background:var(--accent-soft);border-radius:12px;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:4px;padding:12px 16px;display:flex}.user-info-name{color:var(--text);font-size:.95em;font-weight:800}.user-info-tier{background:var(--accent);color:#fff;white-space:nowrap;border-radius:999px;padding:2px 10px;font-size:.78em;font-weight:700}.user-info-days{color:var(--muted);flex:1;font-size:.88em}.user-info-days.urgent-text{color:#dc2626;font-weight:800}.logout-btn{border:1px solid var(--border);color:var(--muted);cursor:pointer;background:0 0;border-radius:8px;padding:6px 14px;font-size:.82em;font-weight:700;transition:border-color .15s,color .15s}.logout-btn:hover{border-color:var(--accent);color:var(--accent)}.mode-select{color:var(--muted);gap:8px;margin:14px 0;display:flex}.mode-select label{border:1px solid var(--border);cursor:pointer;border-radius:999px;align-items:center;gap:6px;padding:8px 16px;font-size:.92em;font-weight:600;transition:border-color .15s,background .15s,color .15s;display:flex}.mode-select label:has(input:checked){border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-weight:700}.mode-select input[type=radio]{accent-color:var(--accent)}.mode-select-compact{flex:none;gap:4px;margin:0}.mode-select-compact label{white-space:nowrap;padding:6px 10px;font-size:.82em}.quiz-head{justify-content:space-between;align-items:center;gap:10px;display:flex}.subject-badge-row{justify-content:center;margin-top:6px;display:flex}.subject-badge{border:1px solid var(--border);color:var(--muted);white-space:nowrap;text-overflow:ellipsis;border-radius:999px;max-width:100%;padding:5px 14px;font-size:.88em;overflow:hidden}.question{line-height:var(--lineHeightPx);white-space:pre-wrap;margin-top:12px}.question-with-count{margin-top:8px}.question-inline-meta{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:6px;margin-bottom:4px;display:flex}.question-inline-meta-left{flex-wrap:wrap;align-items:baseline;gap:6px;display:flex}.question-inline-meta-right{flex-shrink:0;align-items:center;gap:6px;display:flex}.question-inline-meta:empty{display:none}.question-inline-meta .qmeta{font-weight:700}.qmeta-remain,.qmeta-study{color:var(--muted);font-size:.8em}.qmeta-review{font-size:.85em}.qmeta-due{color:#dc2626;font-size:.72em}.question-with-count>p:first-of-type{margin-top:0}.blind-block{border:1px solid var(--border);-webkit-user-select:none;user-select:none;border-radius:14px;margin-top:14px;padding:10px}.blind-title{justify-content:space-between;align-items:center;gap:10px;margin-bottom:6px;font-weight:900;display:flex}.blind-title-actions{align-items:center;gap:8px;display:flex}.hint-edit-btn{border:1px solid var(--border);color:var(--text);cursor:pointer;background:0 0;border-radius:8px;padding:3px 8px;font-size:.8em;font-weight:700}.hint-edit-btn:hover{border-color:#93c5fd}.hint-edit-btn:disabled{opacity:.4;cursor:not-allowed}.hint-edit-btn:disabled:hover{border-color:var(--border)}.hint-edit-actions{flex-wrap:wrap;gap:8px;margin-top:8px;display:flex}.edited-badge{color:#2563eb;vertical-align:middle;cursor:pointer;background:#3b82f61f;border:none;border-radius:999px;margin-left:6px;padding:2px 6px;font-size:.72em;font-weight:700;display:inline-block}.edited-badge:hover{background:#3b82f638}.container.dark .edited-badge{color:#93c5fd;background:#3b82f638}.original-badge{color:var(--muted);vertical-align:middle;cursor:pointer;background:#64748b1f;border:none;border-radius:999px;margin-left:6px;padding:2px 6px;font-size:.72em;font-weight:700;display:inline-block}.original-badge:hover{background:#64748b38}.blind-state{color:var(--muted);font-size:.92em;font-weight:800}.blind-body{border:1px solid var(--border);background:#00000005;border-radius:12px;min-height:56px;padding:10px;position:relative}.container.dark .blind-body{background:#ffffff08}.blind-body.closed .blind-content{opacity:0;pointer-events:none;height:0;overflow:hidden}.blind-body.open .blind-content{opacity:1;height:auto}.blind-content{line-height:var(--lineHeightPx);white-space:pre-wrap;transition:opacity .12s}.blind-cover{color:var(--muted);background:repeating-linear-gradient(45deg,#00000014,#00000014 10px,#00000021 10px 20px);border-radius:12px;justify-content:center;align-items:center;font-weight:900;display:flex;position:absolute;inset:0}.container.dark .blind-cover{background:repeating-linear-gradient(45deg,#ffffff0f,#ffffff0f 10px,#ffffff1f 10px 20px)}.blind-body.open .blind-cover{display:none}.hint-block{padding:8px 10px}.hint-block .blind-title{margin-bottom:4px}.hint-block .blind-body{min-height:42px;padding:6px 10px}.answer-reveal-card{padding:8px 10px}.answer-reveal-card .blind-title{margin-bottom:4px}.answer-reveal-card .blind-body{min-height:42px;padding:6px 10px}.note-header{border:1px solid var(--border);cursor:pointer;border-radius:14px;justify-content:space-between;margin-top:14px;padding:12px;font-weight:900;display:flex}.note-area{margin-top:10px}.note-area textarea{border:1px solid var(--border);width:100%;height:2.4em;min-height:2.4em;font-family:inherit;font-size:1em;font-weight:var(--baseWeight);color:var(--text);resize:none;white-space:pre-wrap;word-break:keep-all;overflow-wrap:break-word;letter-spacing:normal;background:0 0;border-radius:14px;outline:none;padding:12px;line-height:1.7;overflow:hidden}.select{border:1px solid var(--border);width:100%;color:var(--text);background:0 0;border-radius:12px;margin:10px 0;padding:10px}.saved-item{border:1px solid var(--border);border-radius:12px;align-items:flex-start;gap:10px;margin-bottom:10px;padding:10px;display:flex}.saved-question{cursor:pointer;line-height:1.5}.nav-row{grid-template-columns:1fr 1fr;gap:10px;margin-top:8px;display:grid}.signature{text-align:center;color:var(--muted);margin-top:16px;font-size:.9em}.markdown img{max-width:100%;height:auto;margin:12px auto;display:block}.jump-overlay{z-index:200;background:#0000006b;justify-content:center;align-items:center;padding:14px;display:flex;position:fixed;inset:0}.app-modal-overlay{z-index:500;background:#00000073;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.app-modal-box{background:var(--card);border:1px solid var(--border);border-radius:16px;width:min(380px,92vw);padding:20px;box-shadow:0 20px 60px #0000004d}.app-modal-message{color:var(--text);white-space:pre-wrap;margin:0 0 16px;font-size:.98em;line-height:1.5}.app-modal-input{box-sizing:border-box;border:1px solid var(--border);background:var(--bg);width:100%;color:var(--text);border-radius:10px;margin-bottom:16px;padding:10px 12px;font-size:.95em}.app-modal-actions{justify-content:flex-end;gap:8px;display:flex}.docgen-review-box{width:min(600px,94vw)}.docgen-passage-note{color:var(--muted);background:var(--accent-soft);border-radius:10px;margin:-6px 0 12px;padding:8px 10px;font-size:.85em;line-height:1.5}.docgen-progress-box{text-align:center;width:min(420px,92vw)}.docgen-progress-bar-track{background:var(--border);border-radius:999px;width:100%;height:10px;margin:10px 0 8px;overflow:hidden}.docgen-progress-bar-fill{background:var(--accent);border-radius:999px;height:100%;transition:width .3s}.docgen-progress-label{color:var(--muted);margin-bottom:14px;font-size:.9em}.docgen-picker-box{width:min(480px,94vw)}.create-choice-list{flex-direction:column;gap:8px;margin-bottom:14px;display:flex}.create-choice-btn{border:1px solid var(--border);background:var(--card);cursor:pointer;text-align:left;border-radius:12px;align-items:center;gap:12px;padding:12px 14px;display:flex}.create-choice-btn:hover{background:var(--accent-soft);border-color:var(--accent)}.create-choice-icon{flex-shrink:0;font-size:1.4em}.create-choice-btn strong{font-size:.98em;display:block}.create-choice-btn small{color:var(--muted);margin-top:2px;font-size:.82em;display:block}.docgen-dropzone{border:2px dashed var(--border);text-align:center;color:var(--muted);cursor:pointer;border-radius:12px;margin-bottom:12px;padding:28px 16px;transition:background .15s,border-color .15s}.docgen-dropzone.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.docgen-pending-list{flex-direction:column;gap:6px;margin:0 0 14px;padding:0;list-style:none;display:flex}.docgen-pending-list li{background:var(--bg);word-break:break-all;border-radius:8px;justify-content:space-between;align-items:center;gap:8px;padding:6px 10px;font-size:.9em;display:flex}.docgen-pending-remove{color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:6px;flex-shrink:0;padding:2px 6px}.docgen-pending-remove:hover{color:#dc2626;background:#dc26261f}.docgen-draft-list{border:1px solid var(--border);border-radius:10px;max-height:50vh;margin-bottom:14px;overflow-y:auto}.docgen-draft-item{border-bottom:1px solid var(--border);cursor:pointer;align-items:flex-start;gap:10px;padding:10px 12px;display:flex}.docgen-draft-item:last-child{border-bottom:none}.passage-import-pick-item{text-align:left;border:none;border-bottom:1px solid var(--border);width:100%;font:inherit;color:inherit;background:0 0}.passage-import-pick-item:hover{background:var(--accent-soft)}.docgen-draft-item input[type=checkbox]{flex-shrink:0;margin-top:3px}.docgen-draft-text{flex:auto;min-width:0}.docgen-draft-question{white-space:pre-wrap;margin-bottom:4px;font-weight:700}.docgen-draft-answer{color:var(--muted);white-space:pre-wrap;font-size:.92em}.docgen-draft-hint{color:var(--accent);margin-top:4px;font-size:.85em}.jump-panel{background:var(--card);border:1px solid var(--border);border-radius:18px;flex-direction:column;width:min(720px,96vw);max-height:min(86vh,820px);display:flex;overflow:hidden;box-shadow:0 18px 60px #00000040}.jump-head{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:12px 12px 8px;display:flex}.jump-row{grid-template-columns:90px 1fr auto;align-items:center;gap:10px;padding:10px 12px;display:grid}.jump-label{color:var(--muted);font-weight:900}.jump-badge{border:1px solid var(--border);color:var(--muted);border-radius:999px;padding:6px 10px;font-size:.92em;font-weight:900}.jump-input{border:1px solid var(--border);width:100%;color:var(--text);background:0 0;border-radius:12px;outline:none;padding:10px 12px}.jump-preview{border-top:1px dashed var(--border);border-bottom:1px solid var(--border);padding:10px 12px 12px}.jump-preview-title{color:var(--muted);margin-bottom:6px;font-weight:900}.jump-preview-body{border:1px solid var(--border);border-radius:14px;max-height:120px;padding:10px 12px;line-height:1.5;overflow:auto}.jump-actions{margin-top:10px}.jump-list{padding:10px 12px 12px;overflow:auto}.jump-item{border:1px solid var(--border);cursor:pointer;border-radius:12px;grid-template-columns:62px 1fr;align-items:start;gap:10px;margin-bottom:8px;padding:10px;display:grid}.jump-item:hover{opacity:.9}.jump-item.active{outline:2px solid #2563eb59}.exclude-item{cursor:default;grid-template-columns:24px 1fr}.subject-badge-row{position:relative}.subject-badge-actions{gap:6px;display:flex;position:absolute;top:50%;right:0;transform:translateY(-50%)}.exclude-btn{border:1px solid var(--border);color:var(--muted);cursor:pointer;background:0 0;border-radius:999px;padding:5px 10px;font-size:.8em;font-weight:700}.exclude-btn:hover{color:#dc2626;border-color:#dc2626}.exclude-btn:disabled{opacity:.4;cursor:default}.exclude-btn.admin-danger-btn{color:#dc2626;border-color:#dc2626}.exclude-btn.admin-danger-btn:hover{color:#fff;background:#dc2626}.tier-locked-badge{border:1px dashed var(--border);color:var(--muted);white-space:nowrap;border-radius:999px;padding:4px 10px;font-size:.78em;font-weight:700}.tier-locked-hint{color:var(--muted);margin-top:6px;font-size:.78em;font-weight:500}.tier-locked-hint-inline{cursor:default;font-weight:500;color:var(--muted)!important}.tier-locked-btn{opacity:.55;color:var(--muted)!important;background:0 0!important;border-style:dashed!important}.tier-locked-btn:hover{opacity:.8}.format-fab-panel{z-index:60;background:var(--card);scrollbar-width:none;-ms-overflow-style:none;border-radius:10px 0 0 10px;flex-direction:column;align-items:center;width:40px;padding:6px 3px;display:flex;position:fixed;right:0;overflow-y:auto;box-shadow:-2px 0 12px #0000001f}.format-fab-panel::-webkit-scrollbar{display:none}.format-fab-panel .format-toolbar{flex-flow:column;align-items:center;margin-bottom:0;display:flex}.format-fab-panel .format-toolbar-divider{width:100%;height:1px;margin:3px 0}.format-fab-panel .format-toolbar button{width:34px;height:34px}.jump-no{color:var(--muted);font-weight:900}.jump-text{line-height:1.35}.jump-empty{color:var(--muted);text-align:center;border:1px dashed var(--border);border-radius:14px;padding:16px}.audio-controls{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.audio-btn{border:1px solid var(--border);color:var(--text);cursor:pointer;white-space:nowrap;background:0 0;border-radius:12px;flex:auto;min-width:110px;padding:10px 12px;font-weight:900}.audio-btn:disabled{opacity:.4;cursor:not-allowed}.audio-error{border:1px dashed var(--border);color:var(--muted);border-radius:12px;margin-top:8px;padding:10px 12px;font-weight:800;line-height:1.4}.audio-loading{background:var(--accent-soft);color:var(--accent);border-radius:12px;margin-top:8px;padding:10px 12px;font-weight:700;line-height:1.4}.audio-btn.audio-loop-on{border-style:solid}.audio-tab{border:1px solid var(--border);background:var(--card);border-radius:14px;flex-direction:column;justify-content:space-between;align-items:center;gap:16px;min-height:0;max-height:65vh;padding:28px 16px 20px;display:flex;overflow-y:auto}.audio-note-editor-area{flex:none}.audio-tab-bottom{flex-direction:column;flex:none;align-items:center;gap:12px;width:100%;display:flex}.audio-tab-position{color:var(--muted);font-size:.85em;font-weight:700}.audio-tab-note{text-align:center;color:var(--text);cursor:pointer;max-width:90%;font-size:1em;font-weight:700}.audio-tab-note-empty{color:var(--muted);font-size:.9em;font-weight:500;line-height:1.5}.audio-note-editor-area{flex-direction:column;align-items:center;width:100%;display:flex}.audio-note-inline-textarea{border:1px solid var(--border);text-align:center;width:100%;height:2.4em;min-height:2.4em;color:var(--text);background:var(--bg);resize:none;white-space:pre-wrap;word-break:keep-all;overflow-wrap:break-word;border-radius:12px;outline:none;padding:10px 12px;font-family:inherit;font-size:1em;font-weight:700;overflow:hidden}.card-quiz-audio-panel{border:1px solid var(--border);background:var(--card);border-radius:14px;flex-direction:column;align-items:center;gap:10px;margin:14px 0;padding:16px;display:flex}.card-quiz-audio-panel.compact{flex-flow:row;justify-content:flex-start;gap:6px;padding:10px 14px;overflow-x:auto}.card-quiz-mini-toggle{flex-shrink:0;width:36px;height:36px;font-size:1em}.audio-compact-stepper{flex-shrink:0;align-items:center;gap:4px;display:flex}.audio-compact-value{text-align:center;min-width:34px;font-size:.85em;font-weight:700}.audio-compact-select{border:1px solid var(--border);background:var(--bg);height:30px;color:var(--text);border-radius:8px;flex-shrink:0;max-width:108px;padding:0 4px;font-size:.8em}.audio-big-toggle{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:84px;height:84px;font-size:2em;transition:transform .1s,background .15s;display:flex;box-shadow:0 6px 18px #00000026}.audio-big-toggle:active{transform:scale(.96)}.audio-big-toggle.playing{background:#dc2626}.recording-panel{flex-direction:column;align-items:center;gap:6px;width:100%;max-width:320px;display:flex}.record-btn{border:1px dashed var(--accent);background:var(--accent-soft);color:var(--accent);cursor:pointer;border-radius:999px;padding:8px 16px;font-size:.85em;font-weight:700}.recording-existing{flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;display:flex}.recording-badge{color:var(--accent);font-size:.82em;font-weight:700}.recording-import-hint{color:var(--muted);font-size:.78em}.recording-importing{color:var(--accent);font-size:.85em;font-weight:700}.audio-mode-toggle{border:1px solid var(--border);background:var(--card);border-radius:999px;width:220px;max-width:100%;margin-bottom:8px;padding:3px;display:flex;position:relative}.audio-mode-toggle-thumb{background:var(--accent-soft);border:1px solid var(--accent);border-radius:999px;width:calc(50% - 3px);transition:transform .18s;position:absolute;top:3px;bottom:3px;left:3px}.audio-mode-toggle-thumb.right{transform:translate(100%)}.audio-mode-toggle-option{z-index:1;color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:999px;flex:1;padding:6px 10px;font-size:.82em;font-weight:700;transition:color .18s;position:relative}.audio-mode-toggle-option.active{color:var(--accent)}.audio-mode-toggle-option:disabled{opacity:.4;cursor:default}.recording-countdown{color:#dc2626;font-variant-numeric:tabular-nums;font-size:1.6em;font-weight:800;animation:1s infinite recording-pulse}@keyframes recording-pulse{0%,to{opacity:1}50%{opacity:.4}}.recording-preview{flex-direction:column;gap:6px;width:100%;display:flex}.recording-preview audio{height:32px}.recording-preview-actions{justify-content:center;gap:8px;display:flex}.audio-repeat-indicator{color:var(--accent);font-size:.9em;font-weight:700}.audio-tab-settings{color:var(--muted);flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;font-size:.85em;display:flex}.audio-quick-row{gap:14px}.audio-dropdown-label{white-space:nowrap;align-items:center;gap:6px;font-weight:600;display:inline-flex}.audio-inline-select{border:1px solid var(--border);background:var(--card);color:var(--text);cursor:pointer;border-radius:6px;padding:3px 6px;font-size:.95em;font-weight:700}.speed-btn{border:1px solid var(--border);color:var(--text);cursor:pointer;background:0 0;border-radius:8px;padding:4px 8px;font-size:.85em;font-weight:700}.speed-btn.active{background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}.primary-btn.outline{color:var(--text);border:1px solid var(--border);background:0 0}.audio-page{flex-direction:column;gap:12px;display:flex}.audio-head{justify-content:space-between;align-items:center;gap:10px;display:flex}.audio-title{font-weight:var(--boldWeight)}.audio-controls-bar{border:1px solid var(--border);background:var(--card);border-radius:12px;padding:10px}.audio-row{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:8px;display:flex}.audio-row:last-child{margin-bottom:0}.audio-label{color:var(--muted);margin-right:2px;font-size:.9em}.audio-repeat{border:1px solid var(--border);width:70px;color:var(--text);background:0 0;border-radius:8px;padding:6px 8px}.audio-status{flex-wrap:wrap;align-items:center;gap:6px;margin-left:auto;display:flex}.badge{border:1px solid var(--border);color:var(--muted);border-radius:999px;padding:4px 8px;font-size:.85em}.badge.on{color:var(--text)}.badge.off{opacity:.7}.audio-body{flex-direction:column;gap:12px;display:flex}.audio-section{border:1px solid var(--border);background:var(--card);border-radius:12px;padding:12px}.audio-sec-title{font-weight:var(--boldWeight);align-items:center;margin-bottom:8px;display:flex}.audio-note-charcount{text-align:right;color:var(--muted);margin-top:2px;font-size:.78em}.audio-note-charcount-row{color:var(--muted);justify-content:space-between;align-items:center;margin-top:2px;font-size:.78em;display:flex}.audio-note-remaining{color:var(--accent);font-weight:700}.ghost-btn.primary-ish{border-color:var(--accent);color:var(--accent)}.hint-audio-subsection{border-top:1px dashed var(--border);margin-top:10px;padding-top:10px}.hint-audio-subtitle{color:var(--muted);justify-content:space-between;align-items:center;margin-bottom:6px;font-size:.85em;font-weight:700;display:flex}.audio-note-display{font-size:.92em}.hint-audio-edit-label{color:var(--muted);margin-bottom:4px;font-size:.85em;font-weight:700}.radio{align-items:center;gap:6px;display:flex}.modal-backdrop{z-index:9999;background:#00000059;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--card);border:1px solid var(--border);border-radius:14px;width:min(520px,100%);padding:16px;box-shadow:0 10px 30px #0000002e}.modal-title{font-weight:var(--boldWeight);margin-bottom:6px}.modal-title-row{justify-content:space-between;align-items:center;gap:10px;margin-bottom:4px;display:flex}.modal-title-row .modal-title{margin-bottom:0}.bundle-checkbox{cursor:pointer;flex:none;width:18px;height:18px}.bundle-bottom-actions{gap:8px;margin-top:4px;display:flex}.reorder-row .manager-name{cursor:default}.modal-desc{color:var(--muted);margin-bottom:12px}.modal-actions{flex-wrap:wrap;justify-content:flex-end;gap:10px;display:flex}.modal-actions .primary-btn,.modal-actions .ghost-btn{flex:auto;width:auto}*,:before,:after{box-sizing:border-box}html,body{margin:0;padding:0}@media (width<=420px){.audio-controls-bottom{position:sticky;bottom:10px}.audio-row select{max-width:52vw}}.repeat-stepper{align-items:center;gap:6px;margin-left:6px;display:flex}.stepper-label{color:var(--muted);font-size:.85em}.mini-btn.stepper{border-radius:10px;padding:6px 10px;font-weight:900}.audio-subtitle{color:var(--muted);font-size:.9em;font-weight:800}.sm2-rate-row{border:1px solid var(--border);background:#00000005;border-radius:12px;align-items:stretch;gap:8px;margin-top:12px;padding:8px 10px;display:flex}.sm2-open-btn{border:1px dashed var(--border);width:100%;color:var(--muted);cursor:pointer;background:0 0;border-radius:12px;margin-top:12px;padding:9px 12px;font-size:.9em;font-weight:700}.sm2-open-btn:hover{color:var(--text);border-style:solid}.card hr{border:none;border-top:1px solid var(--border);height:0;margin:16px 0}.container.dark .sm2-rate-row{background:#ffffff08}.sm2-rate-main{flex:1;min-width:0}.sm2-repeat-box{border:1px solid var(--border);text-align:center;background:#3b82f60f;border-radius:10px;flex-direction:column;flex:none;justify-content:center;align-items:center;gap:4px;width:132px;padding:6px;display:flex}.sm2-repeat-label{color:var(--muted);font-size:.68em;font-weight:700}.sm2-repeat-bar{background:#00000014;border-radius:999px;width:100%;height:9px;overflow:hidden}.container.dark .sm2-repeat-bar{background:#ffffff1f}.sm2-repeat-bar-fill{background:linear-gradient(90deg,#22c55e,#16a34a);border-radius:999px;height:100%;transition:width .2s}.sm2-repeat-total{color:var(--muted);font-size:.64em;font-weight:700}.sm2-repeat-reset-btn{border:1px solid var(--border);color:var(--muted);cursor:pointer;background:0 0;border-radius:8px;margin-top:1px;padding:3px 7px;font-size:.68em;font-weight:700}.sm2-repeat-reset-btn:hover{opacity:.75}.sm2-rate-label{color:var(--text);margin-bottom:6px;font-size:.85em;font-weight:800;display:block}.sm2-btns{grid-template-columns:1fr 1fr;gap:6px;display:grid}.sm2-btn{cursor:pointer;border:2px solid #0000;border-radius:10px;padding:7px 6px;font-size:.82em;font-weight:900;transition:opacity .1s}.sm2-btn:hover{opacity:.85}.sm2-btn.again{color:#dc2626;background:#ef44441f;border-color:#ef44444d}.sm2-btn.hard{color:#ca8a04;background:#eab3081f;border-color:#eab3084d}.sm2-btn.easy{color:#16a34a;background:#22c55e1f;border-color:#22c55e4d}.sm2-due-info{color:var(--muted);margin-top:6px;font-size:.76em;display:block}.progress-dashboard{border:1px solid var(--border);border-radius:14px;margin:14px 0;padding:12px}.progress-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px;margin-bottom:12px;display:flex}.progress-title{font-size:1em;font-weight:900}.progress-summary{color:var(--muted);font-size:.85em}.progress-bars{flex-direction:column;gap:8px;display:flex}.progress-bar-row{grid-template-columns:80px 1fr 36px;align-items:center;gap:8px;display:grid}.progress-bar-label{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:.85em;overflow:hidden}.progress-bar-track{background:var(--border);border-radius:999px;height:10px;display:flex;overflow:hidden}.progress-bar-fill{border-radius:999px;height:100%;transition:width .4s}.easy-fill{background:#22c55e}.learned-fill{background:#3b82f6}.progress-bar-pct{color:var(--muted);text-align:right;font-size:.8em;font-weight:800}.progress-legend{flex-wrap:wrap;gap:12px;margin-top:10px;display:flex}.legend-item{color:var(--muted);align-items:center;gap:5px;font-size:.8em;display:flex}.legend-dot{border-radius:999px;width:10px;height:10px;display:inline-block}.easy-dot{background:#22c55e}.learned-dot{background:#3b82f6}.none-dot{background:var(--border);border:1px solid var(--muted)}.session-stats-bar{border:1px solid var(--border);border-radius:14px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin:10px 0;padding:10px 12px;display:flex}.session-stats-inner{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.stat-chip{border-radius:999px;padding:4px 10px;font-size:.9em;font-weight:900}.stat-chip.easy{color:#16a34a;background:#22c55e26}.stat-chip.hard{color:#ca8a04;background:#eab30826}.stat-chip.again{color:#dc2626;background:#ef444426}.stat-total{color:var(--muted);font-size:.85em}.review-start-btn{border:1.5px solid var(--accent);background:var(--accent-soft);color:var(--accent);cursor:pointer;white-space:nowrap;border-radius:12px;padding:10px 14px;font-size:.92em;font-weight:700;transition:background .15s}.review-start-btn:hover{filter:brightness(.97)}.review-start-standalone{width:100%;margin:10px 0;padding:12px 14px;font-size:1em;display:block}.reveal-all-btn{border:1.5px solid var(--border);width:100%;color:var(--text);cursor:pointer;text-align:center;background:0 0;border-radius:12px;margin:8px 0 10px;padding:10px 14px;font-size:.95em;font-weight:800;transition:background .15s;display:block}.reveal-all-btn:hover{background:#3b82f612;border-color:#93c5fd}.container.dark .reveal-all-btn:hover{background:#3b82f61f}.quiz-flow{flex-direction:column;flex:auto;min-height:0;display:flex}.my-answer-card{border:1px solid var(--border);border-radius:14px;margin-top:8px;padding:10px}.my-answer-card .blind-title{cursor:pointer}@media (orientation:portrait){.my-answer-card.my-answer-collapsed{padding-bottom:10px}.my-answer-card.my-answer-collapsed>:not(.blind-title){display:none}}.hint-block{margin-top:auto}.my-answer-textarea{border:1px solid var(--border);width:100%;font-family:inherit;font-size:1em;font-weight:var(--baseWeight);line-height:var(--lineHeightPx);color:var(--text);background:var(--card);resize:none;white-space:pre-wrap;word-break:keep-all;overflow-wrap:break-word;border-radius:12px;outline:none;padding:10px 12px;overflow:auto}.my-answer-textarea:focus{border-color:#93c5fd}.note-display-area{border:1px solid var(--border);cursor:text;background:var(--card);border-radius:12px;width:100%;min-height:80px;padding:10px 12px}.note-display-area:hover{border-color:#93c5fd}.note-empty-placeholder{color:var(--muted);margin:0}.note-rich-editable{border:1px solid var(--border);width:100%;min-height:80px;font-family:inherit;font-size:1em;font-weight:var(--baseWeight);line-height:var(--lineHeightPx);color:var(--text);background:var(--card);word-break:keep-all;overflow-wrap:break-word;border-radius:12px;outline:none;padding:10px 12px;overflow:auto}.note-rich-editable:focus{border-color:#93c5fd}.quiz-edit-toolbar-row{margin-bottom:4px}.answer-tabs{flex-wrap:wrap;gap:6px;margin:8px 0;display:flex}.answer-tab-btn{border:1px solid var(--border);color:var(--muted);white-space:nowrap;cursor:pointer;background:0 0;border-radius:8px;padding:4px 10px;font-size:.85em;font-weight:700}.answer-tab-btn.active{background:var(--accent-soft);color:var(--text);border-color:var(--accent)}.mini-audio-control{align-items:center;display:flex}.mini-audio-toggle{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:.9em;display:flex}.keyboard-toggle-btn.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.doodle-pad,.note-tab{flex-direction:column;gap:8px;display:flex}.doodle-toolbar{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.doodle-tools{gap:4px;display:flex}.doodle-tool-btn{border:1px solid var(--border);color:var(--muted);cursor:pointer;background:0 0;border-radius:8px;padding:4px 8px;font-size:.82em;font-weight:700}.doodle-tool-btn.selected{background:var(--accent-soft);color:var(--text);border-color:var(--accent)}.doodle-colors{gap:6px;display:flex}.doodle-color-swatch{border:2px solid var(--border);cursor:pointer;border-radius:50%;width:22px;height:22px;padding:0}.doodle-color-swatch.selected{border-color:var(--text);box-shadow:0 0 0 2px var(--card), 0 0 0 3px var(--text)}.doodle-widths{gap:4px;display:flex}.doodle-width-btn{border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:8px;justify-content:center;align-items:center;width:28px;height:28px;display:flex}.doodle-width-btn.selected{background:var(--accent-soft);border-color:var(--accent)}.doodle-width-dot{color:var(--text);background:currentColor;border-radius:50%;display:inline-block}.doodle-canvas-wrap{border:1px solid var(--border);touch-action:none;background-color:var(--card);border-radius:12px;width:100%;overflow:hidden}.container.dark .doodle-canvas-wrap{background-color:#1a1a1a}.doodle-canvas{touch-action:none;cursor:crosshair;background:0 0;width:100%;height:100%;display:block}.doodle-canvas.grid-on{background-image:linear-gradient(90deg,#d9d9d9 1px,#0000 1px),linear-gradient(#d9d9d9 1px,#0000 1px);background-size:19px 19px}.container.dark .doodle-canvas.grid-on{background-image:linear-gradient(90deg,#404040 1px,#0000 1px),linear-gradient(#404040 1px,#0000 1px);background-size:19px 19px}.doodle-canvas.lines-on{background-image:linear-gradient(#d9d9d9 1px,#0000 1px);background-size:100% 38px}.container.dark .doodle-canvas.lines-on{background-image:linear-gradient(#404040 1px,#0000 1px);background-size:100% 38px}.doodle-hint-text{color:var(--muted);font-size:.78em}.grading-status{background:var(--accent-bg,#3b82f614);color:var(--text);border-radius:10px;align-items:center;gap:10px;margin-top:12px;padding:10px 12px;font-size:.9em;font-weight:700;display:flex}.grading-spinner{border:2px solid #7878784d;border-top-color:#3b82f6;border-radius:50%;flex-shrink:0;width:16px;height:16px;animation:.7s linear infinite grading-spin}@keyframes grading-spin{to{transform:rotate(360deg)}}.grading-cancel-btn{margin-left:auto}.grade-block.grade-correct{border-color:#22c55e66}.grade-block.grade-partial{border-color:#eab30866}.grade-block.grade-wrong{border-color:#ef444466}.grade-block.grade-correct .blind-title{color:#16a34a}.grade-block.grade-partial .blind-title{color:#ca8a04}.grade-block.grade-wrong .blind-title{color:#dc2626}.grade-result{font-size:.95em}.grade-scoreline{background:#3b82f61a;border-radius:8px;margin-bottom:10px;padding:4px 10px;font-weight:800;display:inline-block}.grade-line{margin:6px 0}.grade-tag{border-radius:8px;margin-bottom:2px;padding:2px 8px;font-size:.85em;font-weight:800;display:inline-block}.grade-line-correct .grade-tag{color:#16a34a;background:#22c55e26}.grade-line-wrong .grade-tag{color:#dc2626;background:#ef444426}.grade-line-missing .grade-tag{color:var(--muted);background:#94a3b833}.grade-line ul{margin:4px 0 0;padding-left:20px}.grade-line li{margin:2px 0;line-height:1.4}.grade-comment{border-top:1px dashed var(--border);color:var(--text);margin-top:10px;padding-top:8px;font-weight:600}.sm2-btn{position:relative}.sm2-btn.sm2-recommended{border-width:2px;animation:1.6s ease-in-out infinite sm2-rec-pulse;box-shadow:0 0 0 3px #3b82f640}.sm2-btn.easy.sm2-recommended{border-color:#16a34a}.sm2-btn.hard.sm2-recommended{border-color:#ca8a04}@keyframes sm2-rec-pulse{0%,to{box-shadow:0 0 0 2px #3b82f633}50%{box-shadow:0 0 0 4px #3b82f659}}.sm2-rec-badge{opacity:.85;margin-top:2px;font-size:.68em;font-weight:800;display:block}.sm2-rec-hint{color:var(--muted);margin-top:6px;font-size:.75em;font-weight:600;display:block}.my-answer-actions{gap:8px;margin-top:10px;display:flex}.my-answer-actions .ghost-btn{flex:1}.my-answer-actions .primary-btn{flex:1.4}.answer-reveal-card{cursor:pointer;margin-top:10px}.audio-details-box{border:1px solid var(--border);border-radius:12px;margin-top:10px;overflow:hidden}.audio-details-summary{cursor:pointer;color:var(--muted);-webkit-user-select:none;user-select:none;align-items:center;gap:6px;padding:10px 14px;font-size:.9em;font-weight:800;list-style:none;display:flex}.audio-details-summary::-webkit-details-marker{display:none}.audio-details-summary:after{content:"▼";margin-left:auto;font-size:.75em}details[open] .audio-details-summary:after{content:"▲"}.audio-details-body{border-top:1px solid var(--border);padding:10px 14px 14px}.session-end-overlay{z-index:300;background:#00000073;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.session-end-panel{background:var(--card);border:1px solid var(--border);border-radius:20px;width:min(480px,100%);padding:24px;box-shadow:0 20px 60px #00000040}.session-end-title{text-align:center;margin-bottom:20px;font-size:1.3em;font-weight:900}.session-end-stats{justify-content:center;gap:24px;margin-bottom:20px;display:flex}.end-stat{flex-direction:column;align-items:center;gap:4px;display:flex}.end-stat-num{font-size:2em;font-weight:900}.end-stat-num.easy-num{color:#16a34a}.end-stat-num.hard-num{color:#ca8a04}.end-stat-num.again-num{color:#dc2626}.end-stat-label{color:var(--muted);font-size:.85em}.session-end-actions{flex-direction:column;gap:10px;display:flex}.review-mode-banner{color:#2563eb;background:#3b82f61a;border:1px solid #3b82f640;border-radius:12px;justify-content:center;align-items:center;margin-bottom:10px;padding:8px 12px;font-size:.92em;font-weight:900;display:flex}.container.dark .review-mode-banner{color:#93c5fd;background:#3b82f626}.progress-toggle-btn{border:1px solid var(--border);width:100%;color:var(--text);cursor:pointer;text-align:left;background:0 0;border-radius:12px;align-items:center;gap:6px;margin-bottom:6px;padding:10px 14px;font-weight:800;display:flex}.progress-toggle-btn:hover{opacity:.85}.progress-toggle-summary{color:var(--muted);flex:1;font-size:.85em;font-weight:600}.progress-toggle-arrow{color:var(--muted);font-size:.8em}.progress-dashboard{margin-bottom:8px}.acronym-page{margin-top:4px}.acronym-page-card-mode{flex-direction:column;flex:auto;min-height:0;display:flex;overflow:hidden}.acronym-page-card-mode .acronym-card-view{flex:auto;min-height:0;overflow-y:auto}.acronym-page-card-mode .card-quiz-audio-panel,.acronym-page-card-mode .nav-row,.acronym-page-card-mode .save-btn{flex-shrink:0}.passage-page{flex-direction:column;flex:auto;margin-top:4px;padding-bottom:64px;display:flex}.passage-card{border:1px solid var(--border);background:var(--card);border-radius:14px;margin-top:12px;padding:18px}.passage-question{color:var(--text);margin-bottom:14px;font-weight:700}.passage-body{white-space:pre-wrap;line-height:1.9}.passage-text-seg{white-space:pre-wrap}.blank-chip{cursor:pointer;-webkit-box-decoration-break:clone;box-decoration-break:clone;border-radius:4px;margin:0 1px;padding:0 5px;font-weight:700;line-height:1.5;transition:background-color .12s,color .12s;display:inline}.blank-chip.closed{color:#0000;-webkit-user-select:none;user-select:none;background-image:repeating-linear-gradient(135deg,#d1d5db,#d1d5db 2px,#e9ecef 2px 7px)}.container.dark .blank-chip.closed{background-image:repeating-linear-gradient(135deg,#334155,#334155 2px,#1e293b 2px 7px)}.blank-chip.open{background:var(--accent-soft);color:var(--accent)}.passage-nav-row{gap:8px;margin-top:16px;display:flex}.passage-nav-row .save-btn{flex:1}.passage-nav-sticky{z-index:40;background:var(--bg);border-top:1px solid var(--border);padding:10px 16px 12px;position:fixed;bottom:0;left:0;right:0}.acronym-list{flex-direction:column;gap:10px;margin-top:10px;display:flex}.acronym-card-view{justify-content:flex-start;min-height:50vh}.acronym-card-view .acronym-item{flex-direction:column;justify-content:flex-start;min-height:40vh;font-size:1.1em;line-height:1.9;display:flex}@media (orientation:portrait){.acronym-card-view .acronym-row-label{display:none}}.acronym-card-view .acronym-row{padding:16px 18px}.acronym-card-view .acronym-row:last-child{flex:auto}.acronym-card-view .acronym-item.revealed{border-color:var(--border);background:var(--card)}.container.dark .acronym-card-view .acronym-item.revealed{background:var(--card)}.acronym-item{border:1px solid var(--border);cursor:pointer;background:var(--card);-webkit-user-select:none;user-select:none;border-radius:14px;transition:border-color .15s,background .15s;position:relative;overflow:hidden}.acronym-item:hover{border-color:#93c5fd}.acronym-item.revealed{background:#3b82f60f;border-color:#3b82f6}.container.dark .acronym-item.revealed{background:#3b82f61f}.acronym-icon-group{z-index:2;gap:4px;display:flex;position:absolute;top:6px;right:6px}.acronym-icon-btn{background:var(--card);box-shadow:0 0 0 4px var(--card);cursor:pointer;opacity:.55;border:none;border-radius:6px;padding:4px;font-size:.95em;line-height:1}.acronym-icon-btn:hover{opacity:.9}.acronym-icon-btn.has-note,.acronym-icon-btn.has-override{opacity:1}.acronym-row{align-items:flex-start;gap:10px;padding:10px 14px;display:flex}.acronym-row+.acronym-row{border-top:1px dashed var(--border)}.acronym-row-label{min-width:34px;color:var(--muted);white-space:nowrap;flex:none;padding-top:2px;font-size:.85em;font-weight:900}.acronym-row-text{white-space:pre-wrap;flex:1;line-height:1.4}.acronym-row.answer-row .acronym-row-label{color:#2563eb}.container.dark .acronym-row.answer-row .acronym-row-label{color:#93c5fd}.acronym-row.answer-row .acronym-row-text{font-weight:var(--baseWeight)}.acronym-row-text.markdown img{border-radius:8px;margin:6px 0}.acronym-row.question-row{background:#3b82f609}.acronym-row.hint-row{background:#eab3080d}.acronym-hint-text-row{flex-wrap:wrap;flex:1;justify-content:space-between;align-items:flex-start;gap:8px;display:flex}.acronym-hint-text-row .acronym-row-text{flex:auto}.acronym-hint-text-row .hint-edit-btn{flex:none}.acronym-row.hint-row .note-area{flex:1;min-width:0;margin-top:0}.container.dark .acronym-row.question-row{background:#3b82f614}.container.dark .acronym-row.hint-row{background:#eab30817}.acronym-row.memo-row{background:#22c55e0d}.acronym-row.memo-row .acronym-row-label{color:#16a34a}.container.dark .acronym-row.memo-row{background:#22c55e1a}.container.dark .acronym-row.memo-row .acronym-row-label{color:#4ade80}@media (width<=600px){.card{border-left:none;border-right:none;border-radius:0;padding:10px}.top-bar{gap:6px;margin-bottom:8px}.blind-block{border-radius:10px;margin-top:8px;padding:8px 10px}.blind-title{margin-bottom:4px;font-size:.9em}.my-answer-card{border-radius:10px;padding:8px}.my-answer-card .blind-title{font-size:.9em}.note-header{padding:8px 4px;font-size:.9em}.sm2-open-btn{margin-top:8px;padding:7px 10px;font-size:.85em}.nav-row,.quiz-flow>hr{display:none}.subject-badge-row{margin:6px 0}.card hr{margin:10px 0}.style-panel{border-radius:12px;width:auto;max-height:34vh;padding:8px 10px;position:fixed;top:56px;left:8px;right:8px;overflow-y:auto}.style-row{grid-template-columns:74px 1fr 52px;gap:6px;margin:4px 0;font-size:.82em}.lh-controls{gap:6px;margin-bottom:4px}.style-panel .icon-btn{padding:4px 8px}.style-panel .num-input{padding:4px 6px}}.top-version{color:var(--accent);white-space:nowrap;border:1px dashed var(--accent);border-radius:8px;align-self:center;padding:4px 8px;font-size:.78em;font-weight:700}@media (orientation:portrait){.hide-portrait-secondary{display:none}}.top-clock{color:var(--muted);white-space:nowrap;background:var(--bg);border-radius:8px;align-self:center;padding:6px 10px;font-size:.85em;font-weight:700}.top-credit-display{color:var(--accent);white-space:nowrap;background:var(--accent-soft);border-radius:8px;align-self:center;margin-left:auto;padding:6px 10px;font-size:.85em;font-weight:700}.top-credit-purchased{color:#a855f7}.top-usage-group{align-items:center;gap:6px;display:flex;position:relative}.usage-info-btn{border:1px solid var(--border);background:var(--card);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;width:30px;height:30px;font-size:.9em;display:flex}.usage-info-btn:hover{background:var(--accent-soft)}.usage-info-popup{z-index:60;background:var(--card);border:1px solid var(--border);border-radius:10px;flex-direction:column;gap:6px;padding:8px;display:flex;position:absolute;top:calc(100% + 6px);right:0;box-shadow:0 10px 30px #0003}.top-grade-usage{color:var(--accent);white-space:nowrap;background:var(--accent-soft);border-radius:8px;align-self:center;padding:6px 10px;font-size:.8em;font-weight:700}.top-audio-usage{color:#8b5cf6;background:#8b5cf624}.container.dark .top-audio-usage{color:#c4b5fd;background:#8b5cf638}.dev-note-btn{white-space:nowrap}.problem-edit-active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.format-toolbar{flex-wrap:wrap;gap:4px;margin-bottom:6px;display:flex}.format-toolbar-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:6px;display:flex}.format-toolbar-row .format-toolbar{flex:auto;margin-bottom:0}.raw-toggle-btn{border:1px dashed var(--muted);min-width:30px;height:28px;color:var(--muted);cursor:pointer;white-space:nowrap;background:0 0;border-radius:6px;padding:0 10px;font-size:.8em;font-weight:600}.raw-toggle-btn:hover{border-color:var(--accent);color:var(--accent)}.raw-toggle-btn.active{border-style:solid;border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.raw-markdown-textarea{white-space:pre-wrap;min-height:8em;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.85em;line-height:1.6}.special-char-fab{z-index:60;background:var(--accent);color:#fff;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;border:none;border-radius:50%;width:52px;height:52px;font-size:1.2em;font-weight:800;position:fixed;box-shadow:0 6px 18px #00000040}.special-char-fab-popup{z-index:60;border:1px solid var(--border);background:var(--card);border-radius:12px;width:min(340px,90vw);max-height:60vh;padding:12px 12px 140px;position:fixed;overflow-y:auto;box-shadow:0 10px 30px #00000040}.special-char-fab-popup button{border:1px solid var(--border);background:var(--bg);min-width:30px;height:28px;color:var(--text);cursor:pointer;border-radius:5px;padding:0 6px;font-size:.9em}.special-char-fab-popup button:hover{background:var(--accent);color:#fff}.special-char-pouch-group{flex-wrap:wrap;align-items:center;gap:3px;margin-bottom:8px;display:flex}.special-char-pouch-label{color:var(--muted);width:100%;margin-right:4px;font-size:.78em;font-weight:700}.format-toolbar button{border:1px solid var(--border);background:var(--card);min-width:30px;height:28px;color:var(--text);cursor:pointer;border-radius:6px;padding:0 8px;font-size:.85em}.format-toolbar button:hover{background:var(--accent-soft);border-color:var(--accent)}.format-toolbar-divider{background:var(--border);align-self:stretch;width:1px;margin:2px}.format-toolbar-bold-group{flex-direction:column;gap:2px;display:flex}.format-toolbar-bold-group button{height:22px}.format-toolbar-bold-group .standard-btn{color:var(--muted);font-size:.85em}.format-toolbar-bold-group .standard-btn:hover{color:var(--accent)}.highlight-swatch-btn{border-radius:6px;width:26px;min-width:26px!important;height:26px!important;padding:0!important}.textcolor-swatch-btn{font-weight:900!important}.problem-edit-textarea{border:1px dashed var(--accent);width:100%;min-height:3.2em;color:var(--text);background:var(--card);resize:vertical;border-radius:10px;padding:10px 12px;font-family:inherit;font-size:1em;line-height:1.5;overflow:hidden}.passage-edit-textarea{min-height:8em}.rich-text-editable{white-space:pre-wrap;word-break:keep-all;overflow-wrap:break-word;cursor:text;outline:none}.rich-text-editable:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}.qmeta-due-sub{color:var(--muted);font-size:.78em;font-weight:600}.dev-note-overlay{z-index:200;background:#00000073;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.dev-note-modal{background:var(--card);border:1px solid var(--border);border-radius:16px;flex-direction:column;width:min(560px,92vw);max-height:80vh;padding:16px;display:flex;box-shadow:0 20px 50px #0000004d}.dev-note-head{justify-content:space-between;align-items:center;margin-bottom:6px;font-size:1.05em;font-weight:900;display:flex}.dev-note-hint{color:var(--muted);margin:0 0 10px;font-size:.82em}.dev-note-textarea{border:1px solid var(--border);min-height:280px;color:var(--text);background:var(--card);resize:none;white-space:pre-wrap;border-radius:12px;outline:none;flex:1;padding:12px;font-family:inherit;font-size:1em;line-height:1.5}.dev-note-textarea:focus{border-color:#93c5fd}.quiz-left,.quiz-right{display:contents}.quiz-edit-toolbar-col{display:none}.quiz-flow.editing-widget-active{padding-right:48px}.quiz-flow .review-mode-banner{order:-1}.quiz-flow .subject-badge-row{order:0}.quiz-flow .question-with-count{order:1}.quiz-flow .hint-block{order:2}.quiz-flow .answer-reveal-card{order:3}.quiz-flow .grade-block{order:4}.quiz-flow .my-answer-card{order:5}.quiz-flow .sm2-open-btn,.quiz-flow .sm2-rate-row{order:6}.quiz-flow .note-header,.quiz-flow .note-area,.quiz-flow .audio-details-box{order:7}.quiz-flow>hr,.quiz-flow .nav-row{order:8}.quiz-flow .signature-quiz{order:9}@media (orientation:landscape) and (width>=900px){.quiz-flow .review-mode-banner,.quiz-flow .subject-badge-row,.quiz-flow .question-with-count,.quiz-flow .hint-block,.quiz-flow .answer-reveal-card,.quiz-flow .grade-block,.quiz-flow .my-answer-card,.quiz-flow .sm2-open-btn,.quiz-flow .sm2-rate-row,.quiz-flow .note-header,.quiz-flow .note-area,.quiz-flow .audio-details-box,.quiz-flow .nav-row{order:0}.quiz-flow.editing-widget-active{padding-right:0}.quiz-edit-toolbar-col{scrollbar-width:none;-ms-overflow-style:none;border-left:1px solid var(--border);border-right:1px solid var(--border);flex-direction:column;flex:0 0 40px;align-items:center;height:100%;padding:6px 3px;display:flex;overflow-y:auto}.quiz-edit-toolbar-col::-webkit-scrollbar{display:none}.quiz-edit-toolbar-col .format-toolbar{flex-flow:column;align-items:center;margin-bottom:0;display:flex}.quiz-edit-toolbar-col .format-toolbar button{width:32px;height:32px}.quiz-edit-toolbar-col .format-toolbar-divider{width:100%;height:1px;margin:3px 0}.app-shell:has(.quiz-flow){height:100vh;min-height:0;overflow:hidden}.container:has(.quiz-flow){height:100vh;min-height:0;overflow:hidden}.card:has(.quiz-flow){flex-direction:column;height:100%;min-height:0;display:flex;overflow:hidden}.card:has(.quiz-flow)>.top-bar{flex:none}.quiz-flow{flex-direction:row;flex:auto;align-items:stretch;gap:0 16px;min-height:0;overflow:hidden}.quiz-left,.quiz-right{flex-direction:column;min-width:0;height:100%;min-height:0;display:flex;overflow:hidden auto}.quiz-left{flex:0 0 calc(var(--leftRatio,50) * 1% - 8px);border-right:1px solid var(--border);padding-right:14px}.quiz-right{flex:1 1 0;padding-left:6px}.quiz-left .hint-block,.quiz-right .my-answer-card,.quiz-right .hint-block{margin-top:8px}.quiz-left .note-header{margin-top:auto}.quiz-right .hint-block{flex:none;margin-top:0}.quiz-right .grade-block{flex:none}.quiz-right .my-answer-card{min-height:max(calc(var(--answerRows,10) * var(--lineHeightPx) + 60px), calc(10 * var(--lineHeightPx) + 60px));flex-direction:column;flex:auto;display:flex}.quiz-right .my-answer-card .my-answer-textarea{flex:auto;height:auto!important}.quiz-right .my-answer-card .doodle-pad{flex-direction:column;flex:auto;min-height:0;display:flex}.quiz-right .my-answer-card .doodle-canvas-wrap{flex:auto;min-height:0;height:auto!important}.quiz-right .my-answer-card .note-tab{flex-direction:column;flex:auto;min-height:0;display:flex}.quiz-right .my-answer-card .note-tab .note-rich-editable,.quiz-right .my-answer-card .note-tab .my-answer-textarea{flex:auto;min-height:0;overflow-y:auto;height:auto!important}.quiz-right .sm2-rate-row,.quiz-right .sm2-open-btn{flex:none}.quiz-right .nav-row{flex:none;margin-top:8px}.quiz-right>hr,.signature-quiz{display:none}.style-panel{width:min(360px,42vw);max-height:70vh;position:fixed;top:64px;left:16px;right:auto;overflow-y:auto}}@media (orientation:landscape) and (width<=899px){.style-panel{border-radius:12px;width:auto;max-height:80vh;padding:8px 10px;position:fixed;top:50px;left:8px;right:8px;overflow-y:auto}.style-row{grid-template-columns:74px 1fr 52px;gap:6px;margin:4px 0;font-size:.82em}.lh-controls{gap:6px;margin-bottom:4px}.style-panel .icon-btn{padding:4px 8px}.style-panel .num-input{padding:4px 6px}}.grade-line-myanswer .grade-tag{color:#3b82f6;background:#3b82f626}.grade-myanswer{border:1px solid var(--border);white-space:pre-wrap;background:#00000008;border-radius:8px;margin-top:4px;padding:8px 10px;font-size:.95em;line-height:1.5}.container.dark .grade-myanswer{background:#ffffff0a}.resume-btn{background:#16a34a;margin-bottom:4px;font-weight:900}.resume-btn:hover{background:#15803d}.follow-subnote-block-head{cursor:pointer}.follow-list-section-toggle{cursor:pointer;justify-content:space-between;align-items:center;display:flex}.main-settings-panel{min-width:220px}.main-settings-account{display:block}.main-settings-account-info{flex-direction:column;gap:2px;display:flex}.main-settings-name{word-break:break-all;font-size:.95em;font-weight:700}.main-settings-tier{color:var(--muted);font-size:.85em}.font-size-value{color:var(--muted);text-align:right;min-width:34px;font-size:.85em}.follow-color-badge{position:relative}.follow-settings-popup{background:var(--card);border:1px solid var(--border);z-index:30;border-radius:12px;flex-direction:column;gap:8px;width:160px;margin-top:6px;padding:10px;display:flex;position:absolute;top:100%;right:0;box-shadow:0 10px 30px #0003}.follow-settings-popup-row{flex-wrap:wrap;gap:6px;display:flex}.follow-subnote-title{padding-left:1.6em}.follow-color-swatch-none{background:#fff;position:relative;border:1px solid var(--border)!important}.follow-color-swatch-none:after{content:"";border-top:1px solid #dc2626;position:absolute;inset:4px;transform:rotate(45deg)}.docgen-usage-note{color:var(--accent);margin:-6px 0 8px;font-size:.85em;font-weight:700}.docgen-warning-note{color:#b45309;background:#f59e0b1f;border-radius:8px;margin:0 0 12px;padding:8px 10px;font-size:.8em;line-height:1.5}.docgen-draft-seq{color:var(--accent);font-weight:700}.docgen-split-panel{border:1px dashed var(--accent);background:var(--accent-soft);border-radius:10px;margin:0 0 12px;padding:10px}.docgen-split-note{color:var(--muted);margin:0 0 8px;font-size:.82em;line-height:1.5}.docgen-split-input-row{justify-content:space-between;align-items:center;gap:8px;margin:6px 0;font-size:.88em;display:flex}.docgen-split-input-row .num-input{width:80px}.subject-move-category-select{border:1px solid var(--border);background:var(--card);color:var(--text);cursor:pointer;border-radius:8px;max-width:120px;padding:4px 8px;font-size:.85em}.image-resize-popup{background:var(--card);border:1px solid var(--border);z-index:200;white-space:nowrap;border-radius:12px;flex-wrap:nowrap;align-items:center;gap:4px;padding:6px;display:flex;box-shadow:0 10px 30px #0003}.image-resize-popup button{border:1px solid var(--border);background:var(--bg);cursor:pointer;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;padding:0;font-size:.95em;display:flex}.image-resize-popup button:hover{background:var(--accent-soft);border-color:var(--accent)}.image-delete-btn{color:#dc2626;border-color:#dc262666!important}.image-delete-btn:hover{background:#dc26261f!important}.mode-switch-group{gap:6px;display:none}@media (orientation:landscape){.mode-switch-group{display:flex}}.answer-edit-row{align-items:stretch;gap:0;display:flex}.answer-edit-main{flex:auto;min-width:0}.answer-edit-toolbar-col{scrollbar-width:none;-ms-overflow-style:none;border-left:1px solid var(--border);flex-direction:column;flex:none;align-items:center;width:40px;padding:4px 2px;display:flex;overflow-y:auto}.answer-edit-toolbar-col::-webkit-scrollbar{display:none}.answer-edit-toolbar-col .format-toolbar{flex-flow:column;align-items:center;margin-bottom:0;display:flex}.answer-edit-toolbar-col .format-toolbar button{width:32px;height:32px}.answer-edit-toolbar-col .format-toolbar-divider{width:100%;height:1px;margin:3px 0}.landscape-only-block{display:none}.portrait-only-block{display:inline-flex}@media (orientation:landscape) and (width>=900px){.landscape-only-block.top-clock,.landscape-only-block.top-credit-display{display:inline-block}.landscape-only-block.keyboard-toggle-btn{display:inline-flex}.portrait-only-block{display:none}}.passage-edit-btn-group{align-items:center;gap:8px;display:flex}.content-cap-locked{opacity:.45;filter:grayscale(.6)}.content-cap-locked label{cursor:not-allowed}.content-cap-lock-icon{margin-right:4px}.custom-folder-block{border:1px dashed var(--border);border-radius:10px;margin:6px 0;padding:4px 6px}.custom-folder-head{cursor:pointer;background:var(--accent-soft);border-radius:8px;align-items:center;gap:6px;padding:8px 6px;transition:background .12s;display:flex}.custom-folder-head:hover{filter:brightness(.97)}.custom-folder-body{padding-left:14px}:root{--bg:#f5f7fb;--card:#fff;--text:#0f172a;--muted:#64748b;--border:#e2e8f0;--accent:#d97706;--accent-soft:#d9770614}*{box-sizing:border-box}body{font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.app-shell{background:var(--bg);min-height:100vh;color:var(--text);text-align:left;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;flex-direction:column;padding:8px 0;display:flex}.app-shell.dark{--bg:#0b1220;--card:#0f172a;--text:#e2e8f0;--muted:#94a3b8;--border:#1f2a44;--accent:#f0a637;--accent-soft:#f0a6371f;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}.loading-text{text-align:center;color:var(--muted);margin-top:40vh}.login-stage{background:#f7f8fa;flex:auto;justify-content:center;align-items:center;width:100%;display:flex}.login-card{background:#fff;border:1px solid #e7e9ed;border-radius:14px;width:360px;max-width:88vw;padding:44px 36px 36px;box-shadow:0 20px 50px #1b24300f}.login-eyebrow{letter-spacing:.04em;color:#d97706;margin-bottom:10px;font-size:12px;font-weight:600}.login-title{letter-spacing:-.01em;color:#1b2430;margin:0 0 6px;font-size:22px;font-weight:700}.login-sub{color:#8a93a3;margin:0 0 30px;font-size:13px}.login-field{margin-bottom:14px}.login-field label{color:#8a93a3;margin-bottom:7px;font-size:12.5px;font-weight:600;display:block}.login-input{color:#1b2430;background:#fafbfc;border:1px solid #e7e9ed;border-radius:9px;outline:none;width:100%;padding:12px 14px;font-size:14.5px;transition:border-color .15s,box-shadow .15s,background .15s}.login-input::placeholder{color:#b7bec9}.login-input:focus{background:#fff;border-color:#d97706;box-shadow:0 0 0 3.5px #d977061f}.login-error{color:#c1392b;text-align:center;margin:12px 0 0;font-size:.88em;font-weight:700}.login-btn{color:#fff;cursor:pointer;background:#d97706;border:none;border-radius:9px;width:100%;margin-top:14px;padding:13px;font-size:14.5px;font-weight:700;transition:filter .15s,transform .1s}.login-btn:hover{filter:brightness(1.06)}.login-btn:active{transform:translateY(1px)}.login-btn:disabled{opacity:.6;cursor:default}.login-divider{color:#b7bec9;align-items:center;gap:10px;margin:18px 0 4px;font-size:12px;display:flex}.login-divider:before,.login-divider:after{content:"";background:#e7e9ed;flex:1;height:1px}.login-btn-google{color:#1b2430;background:#fff;border:1px solid #e7e9ed}.login-btn-google:hover{filter:none;background:#fafbfc}.login-footer{text-align:center;color:#c3c9d1;margin-top:28px;font-size:11.5px}.mini-btn{border:1px solid var(--border);color:var(--text);cursor:pointer;background:0 0;border-radius:10px;padding:7px 12px;font-size:.9em;font-weight:700}.mini-btn:hover{border-color:#93c5fd}.mini-btn:disabled{opacity:.5;cursor:default}.home-card{background:var(--card);border:1px solid var(--border);border-radius:16px;max-width:720px;margin:0 auto;padding:24px}.expires-info{color:var(--muted);font-weight:700}.placeholder-text{color:var(--muted);margin-top:16px}.admin-top-actions{justify-content:flex-end;gap:8px;width:96%;margin:0 auto 12px;display:flex}.admin-panel{background:var(--card);border:1px solid var(--border);border-radius:16px;width:96%;margin:0 auto;padding:24px}.admin-section{border-top:1px solid var(--border);margin-top:20px;padding-top:16px}.admin-section:first-of-type{border-top:none;margin-top:8px;padding-top:0}.admin-row{gap:8px;margin-bottom:10px;display:flex}.admin-row-wrap{flex-wrap:wrap}.admin-input{border:1px solid var(--border);background:var(--card);min-width:100px;color:var(--text);border-radius:10px;flex:1;padding:9px 12px;font-size:.95em}.admin-input-num{flex:0 0 90px}.admin-user-card{border:1px solid var(--border);background:#3b82f60d;border-radius:12px;margin-bottom:10px;padding:12px 16px;font-size:.92em}.admin-user-card p{margin:4px 0}.admin-msg{color:#16a34a;background:#22c55e1a;border:1px solid #22c55e4d;border-radius:10px;margin-top:12px;padding:10px 14px;font-size:.9em;font-weight:700}.admin-user-table-wrap{margin-top:12px;overflow-x:auto}.admin-user-table{border-collapse:collapse;width:100%;font-size:.88em}.admin-user-table th{text-align:left;border-bottom:2px solid var(--border);color:var(--muted);white-space:nowrap;padding:8px 10px}.admin-user-table td{border-bottom:1px solid var(--border);padding:8px 10px}.admin-user-row{cursor:pointer;transition:background .12s}.admin-user-row:hover{background:var(--accent-soft)}.admin-user-row-active{background:var(--accent-soft);font-weight:700}.admin-user-panel-row td{border-bottom:1px solid var(--border);padding:0}.admin-user-panel{background:var(--bg);border-radius:0 0 10px 10px;padding:16px}.admin-panel-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;display:grid}.admin-panel-field label{color:var(--muted);margin-bottom:6px;font-size:.82em;font-weight:700;display:block}.admin-panel-field .admin-row{margin-bottom:0}.admin-danger-btn{margin-left:auto;color:#dc2626!important;border-color:#dc2626!important}.admin-danger-btn:hover{background:#dc262614!important}.admin-hint{color:var(--muted);margin-top:8px;font-size:.8em}.admin-usage-history{background:var(--card);border:1px solid var(--border);border-radius:8px;max-height:260px;margin-top:10px;padding:10px;overflow-y:auto}.admin-usage-history .admin-user-table th,.admin-usage-history .admin-user-table td{padding:5px 8px}