:root{color-scheme:dark;--canvas: #1a1a1a;--card-bg: #262626;--card-border: #333333;--card-hover: #2c2c2e;--menu-bg: #2a2a2c;--button-idle: #555555;--white: #ffffff;--text: #f2f2f4;--text-strong: rgba(255, 255, 255, .9);--text-soft: rgba(255, 255, 255, .85);--text-dim: rgba(255, 255, 255, .8);--text-softer: rgba(255, 255, 255, .75);--muted: #8e8e93;--accent: #007aff;--accent-05: rgba(0, 122, 255, .05);--accent-06: rgba(0, 122, 255, .06);--accent-08: rgba(0, 122, 255, .08);--accent-12: rgba(0, 122, 255, .12);--accent-15: rgba(0, 122, 255, .15);--accent-20: rgba(0, 122, 255, .2);--accent-30: rgba(0, 122, 255, .3);--accent-50: rgba(0, 122, 255, .5);--accent-75: rgba(0, 122, 255, .75);--accent-80: rgba(0, 122, 255, .8);--on-bright: #10131a;--green: #34c759;--green-12: rgba(52, 199, 89, .12);--green-15: rgba(52, 199, 89, .15);--green-40: rgba(52, 199, 89, .4);--orange: #ff9f0a;--purple: #af52de;--yellow: #ffd60a;--yellow-30: rgba(255, 214, 10, .3);--destructive: #ff453a;--red-10: rgba(255, 69, 58, .1);--red-12: rgba(255, 69, 58, .12);--red-30: rgba(255, 69, 58, .3);--red-40: rgba(255, 69, 58, .4);--grey-12: rgba(142, 142, 147, .12);--grey-20: rgba(142, 142, 147, .2);--grey-40: rgba(142, 142, 147, .4);--grey-50: rgba(142, 142, 147, .5);--grey-60: rgba(142, 142, 147, .6);--grey-80: rgba(142, 142, 147, .8);--shade-soft: rgba(0, 0, 0, .15);--shade: rgba(0, 0, 0, .2);--overlay: rgba(0, 0, 0, .55);--panel-dim-light: rgba(38, 38, 38, .3);--panel-dim: rgba(38, 38, 38, .5);--panel-dim-heavy: rgba(38, 38, 38, .8);--canvas-glass: rgba(26, 26, 26, .95);--radius-xxs: 3px;--radius-xs: 4px;--radius-control: 5px;--radius-s: 6px;--radius-segment: 7px;--radius-m: 10px;--radius-l: 12px;--radius-question: 14px;--radius-xl: 16px;--radius-pill: 999px;--radius-circle: 50%;--shadow-menu: 0 12px 32px rgba(0, 0, 0, .5);--shadow-modal: 0 24px 64px rgba(0, 0, 0, .6);--z-source-text: 1;--z-qa-sticky: 2;--z-sticky: 10;--z-modal: 900;--z-menu: 1000;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;--serif: Georgia, "Times New Roman", serif;--page-pad-x: 40px;--page-pad-y: 32px;--panel-pad: 24px;--topbar-pad-x: 28px;--topbar-pad-y: 10px;--page-title-size: 28px;--page-max-width: 1600px;--page-bottom-pad: 48px;--source-min-height: 350px;--source-pad: 16px;--footer-pad-x: 24px;--footer-pad-y: 6px;--footer-font-size: 11px;--modal-pad: 24px;--icon-button-width: 30px;--icon-button-height: 28px;--button-gap: 6px;--button-pad-y: 8px;--button-pad-x: 16px;--button-small-pad-y: 5px;--button-small-pad-x: 10px;--input-pad-y: 9px;--input-pad-x: 10px;--grid-card-min: 200px;--grid-gap: 20px;--subject-card-min-height: 160px;--topic-card-min-height: 120px;--card-pad: 16px}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;-webkit-text-size-adjust:100%}body{font-family:var(--font);background:var(--canvas);color:var(--text);font-size:14px;line-height:1.45;-webkit-font-smoothing:antialiased}#app{height:100%}button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;cursor:pointer}button:disabled{cursor:default;opacity:.45}button,a,input,textarea,label{touch-action:manipulation}button,a{-webkit-tap-highlight-color:transparent}input,textarea{font-family:inherit;color:inherit}a{color:var(--accent);text-decoration:none}.icon{vertical-align:middle;flex-shrink:0}.app-shell{display:flex;flex-direction:column;height:100vh;height:100dvh}.app-main,.page{flex:1;min-height:0;display:flex;flex-direction:column}.app-footer{display:flex;align-items:center;justify-content:center;position:relative;padding:var(--footer-pad-y) var(--footer-pad-x);padding-bottom:calc(var(--footer-pad-y) + env(safe-area-inset-bottom));border-top:1px solid var(--card-border);font-size:var(--footer-font-size);color:var(--muted);flex-shrink:0}.footer-center{display:inline-flex;align-items:center;gap:8px}.footer-year{opacity:.7}.footer-version{opacity:.7;font-variant-numeric:tabular-nums}.footer-trial{position:absolute;left:var(--footer-pad-x);display:inline-flex;align-items:center;gap:4px}.footer-trial-num{color:var(--green);font-variant-numeric:tabular-nums}.footer-trial-num.is-ending{color:var(--destructive)}.footer-lock{display:inline-flex;align-items:center;padding:2px;border:none;background:none;color:var(--yellow);cursor:pointer;touch-action:manipulation}.footer-link{position:absolute;right:var(--footer-pad-x);color:var(--muted);font-size:var(--footer-font-size)}.footer-link:hover{color:var(--text)}.top-bar{display:flex;align-items:center;gap:12px;padding:var(--topbar-pad-y) var(--topbar-pad-x);border-bottom:1px solid var(--card-border);flex-shrink:0}.breadcrumb{display:flex;align-items:center;flex:1;min-width:0;gap:2px}.crumb{font-size:14px;font-weight:500;color:var(--muted);padding:2px 4px;white-space:nowrap;max-width:280px;overflow:hidden;text-overflow:ellipsis}button.crumb:hover{color:var(--text)}.crumb-active{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.crumb-current{font-weight:600;color:var(--accent);text-decoration:underline;text-underline-offset:3px}.crumb-accent{color:var(--accent)}.crumb-muted-label{color:var(--muted);padding-left:20px}.crumb-sep{color:var(--muted);padding:0 6px;opacity:.7}.crumb-ellipsis{max-width:220px;overflow:hidden;text-overflow:ellipsis}.top-bar-actions{display:flex;align-items:center;gap:6px}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:var(--icon-button-width);height:var(--icon-button-height);border-radius:var(--radius-s);color:var(--muted)}.icon-button:hover{color:var(--text);background:var(--card-bg)}.icon-button:active{color:var(--text);background:var(--card-bg);transform:scale(.92)}.icon-button.is-active{color:var(--accent)}.icon-button.is-disabled{opacity:.35;pointer-events:none}.button{display:inline-flex;align-items:center;justify-content:center;gap:var(--button-gap);font-size:13px;font-weight:600;padding:var(--button-pad-y) var(--button-pad-x);border-radius:var(--radius-m);white-space:nowrap;transition:filter .12s ease,transform .08s ease}.button:hover:not(:disabled){filter:brightness(1.12)}.button:active:not(:disabled){transform:scale(.97)}.button-primary{background:var(--accent);color:var(--white)}.button-secondary{background:var(--card-bg);color:var(--text);border:1px solid var(--card-border)}.button-green{background:var(--green);color:var(--white)}.button-ghost{background:var(--card-bg);color:var(--muted);border:1px solid var(--card-border);font-weight:500;font-size:12px;padding:var(--button-small-pad-y) var(--button-small-pad-x);border-radius:var(--radius-s)}.button-destructive{background:var(--destructive);color:var(--white)}.button-destructive-soft{background:var(--red-10);color:var(--destructive);align-self:flex-start}.button-destructive-outline{background:var(--card-bg);color:var(--destructive);border:1px solid var(--red-30);font-size:12px;font-weight:500;padding:6px 12px;border-radius:var(--radius-s)}.button-large{padding:10px 26px;font-size:15px;border-radius:var(--radius-m)}.button-small{padding:var(--button-small-pad-y) var(--button-small-pad-x);font-size:11px;border-radius:var(--radius-s)}.link-button{color:var(--accent);font-size:12px;white-space:nowrap}.link-button:hover{text-decoration:underline}.text-input{width:100%;background:var(--canvas);border:1px solid var(--card-border);border-radius:var(--radius-s);padding:var(--input-pad-y) var(--input-pad-x);font-size:13px;outline:none}.text-input:focus{border-color:var(--accent)}.textarea-small{resize:vertical;min-height:60px;font-size:12px}.muted-text{color:var(--muted);font-size:12px}.center-text{text-align:center;white-space:pre-line}.section-label{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--muted);font-family:var(--mono)}.field-label{font-size:11px;font-weight:700;color:var(--text-soft);margin-top:4px}.flex-spacer{flex:1}.center-row{display:flex;justify-content:center;align-items:center;gap:14px}.text-green{color:var(--green)}.text-orange{color:var(--orange)}.text-yellow{color:var(--yellow)}.text-accent{color:var(--accent)}.text-destructive{color:var(--destructive)}.text-muted{color:var(--muted)}.color-dot{width:10px;height:10px;border-radius:var(--radius-circle);flex-shrink:0}.color-dot-small{width:8px;height:8px}.char-counter{display:flex;justify-content:flex-end;font-size:10px}.section-divider{border:none;border-top:1px solid var(--card-border);margin:18px 0;width:100%}.muted-icon{color:var(--muted);display:inline-flex}.accent-icon{color:var(--accent);display:inline-flex}.scroll-area{flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch}.page-content{padding:var(--page-pad-y) var(--page-pad-x) var(--page-bottom-pad);width:100%;max-width:var(--page-max-width);margin:0 auto}.page-title{font-size:var(--page-title-size);font-weight:700}.section-title{font-size:20px;font-weight:700}.section-title-row{display:flex;align-items:center;gap:12px;margin-bottom:24px}.section-title-row .page-title,.section-title-row .section-title{flex:1;min-width:0;overflow-wrap:anywhere}.section-title-actions,.title-icon-actions{display:flex;align-items:center;gap:10px}.title-action-group{display:contents}.subject-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(var(--grid-card-min),1fr));gap:var(--grid-gap)}.subject-card,.topic-card{display:flex;flex-direction:column;gap:12px;min-height:var(--subject-card-min-height);padding:var(--card-pad);background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-l);cursor:pointer;text-align:left}.topic-card{min-height:var(--topic-card-min-height)}.hover-card{transition:transform .15s ease,background .15s ease}.hover-card:hover{background:var(--card-hover);transform:scale(1.015)}.topic-card.is-highlighted,.subject-row.is-highlighted,.recent-pill.is-highlighted{background:var(--topic-highlight-bg);border-color:var(--topic-highlight-border)}.topic-card.is-highlighted:hover,.subject-row.is-highlighted:hover,.recent-pill.is-highlighted:hover{background:var(--topic-highlight-bg)}.card-title-row{display:flex;align-items:flex-start;gap:10px;width:100%;min-width:0}.card-title{font-size:16px;font-weight:600;flex:1;min-width:0;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.card-title-row .color-dot,.card-title-row .topic-icon{margin-top:5px}.card-menu{margin:-4px -6px 0 0}.result-context{font-style:italic}.bookmark-flag{display:inline-flex;align-items:center;color:var(--yellow);margin-top:5px}.bookmark-flag svg{fill:var(--yellow)}.subject-row .bookmark-flag{margin-top:0}.card-meta{font-size:12px;color:var(--muted);display:flex;flex-direction:column;gap:3px}.note-card{min-height:0}.note-body{font-size:13px;line-height:1.5;color:var(--text-soft);white-space:pre-wrap;overflow-wrap:anywhere;overflow:hidden;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical}.note-mention{display:inline;padding:0;border:none;background:none;font:inherit;font-weight:600;color:var(--accent);text-decoration:underline;text-underline-offset:2px;cursor:pointer}.note-modal .note-body-input{min-height:180px;resize:vertical}.note-modal .mention-suggest{display:flex;gap:8px;overflow-x:auto;-webkit-overflow-scrolling:touch}.note-modal .mention-suggest:empty{display:none}.mention-chip{flex:none;max-width:220px;padding:7px 12px;border:1px solid transparent;border-radius:999px;background:var(--green);color:var(--on-bright);font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:pointer}.mention-chip:active{background:var(--green-40)}.stats-group-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--card-border);font-size:13px}.stats-group-row:last-child{border-bottom:none}.stats-group-name{flex:1;min-width:0;display:flex;align-items:center;gap:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.stats-group-meta{color:var(--muted);font-size:12px;white-space:nowrap}.subject-list{display:flex;flex-direction:column;gap:8px}.subject-row{display:flex;align-items:center;gap:12px;padding:10px 14px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-m);cursor:pointer}.row-title{font-size:15px;font-weight:600;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.row-meta{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.new-tile{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:var(--subject-card-min-height);color:var(--muted);font-size:14px;font-weight:500;background:var(--panel-dim);border:1px dashed var(--card-border);border-radius:var(--radius-l)}.new-tile:hover{color:var(--text);background:var(--card-bg)}.subject-page .new-tile{min-height:var(--topic-card-min-height)}.new-tile-row{flex-direction:row;justify-content:flex-start;min-height:0!important;padding:12px 14px;border-radius:var(--radius-m);font-size:13px}.view-toggle{display:inline-flex;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-s);overflow:hidden}.view-toggle-button{width:32px;height:28px;display:inline-flex;align-items:center;justify-content:center;color:var(--muted)}.view-toggle-button.is-active{color:var(--accent);background:var(--card-hover)}.view-toggle-button:disabled{color:var(--grey-60);background:transparent}.bookmark-sort-toggle .view-toggle-button{width:auto;min-width:58px;padding:0 10px;font-size:11px;font-weight:600}.topic-icon{display:inline-flex}.recents-section{margin-top:8px}.recents-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}.recents-grid-large{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}.recent-pill{display:flex;flex-direction:column;gap:8px;padding:10px 12px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-m);text-align:left;cursor:pointer}.recent-title{font-size:13px;font-weight:600;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.recent-pill .card-title-row .color-dot-small{margin-top:4px}.trash-row{display:flex;align-items:center;gap:12px;padding:12px;background:var(--card-bg);border-radius:var(--radius-s);margin-bottom:10px}.quote{margin-top:4px}.quote-text{font-family:var(--serif);font-style:italic;font-size:16px;color:var(--text-soft);margin-bottom:8px}.quote-author{font-size:13px;color:var(--muted)}.empty-state{display:flex;flex-direction:column;align-items:center;gap:12px;padding:80px 20px;text-align:center}.empty-state.full-height{flex:1;justify-content:center}.empty-icon{color:var(--grey-40)}.empty-title{font-size:17px;font-weight:600;color:var(--text)}.empty-state .muted-text{font-size:13px}.center-column{display:flex;flex-direction:column;align-items:center;gap:20px;padding-top:40px}.empty-hero-icon{color:var(--grey-50);background:var(--card-bg);padding:24px;border-radius:var(--radius-xl);display:inline-flex}.feature-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,220px));justify-content:center;gap:16px;margin-top:12px}.feature-card{display:flex;flex-direction:column;gap:8px;padding:16px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-l);text-align:left}.feature-card h4{font-size:13px;font-weight:600}.feature-card p{font-size:12px;color:var(--muted)}.dropdown-menu{position:fixed;z-index:var(--z-menu);min-width:200px;background:var(--menu-bg);border:1px solid var(--card-border);border-radius:var(--radius-m);box-shadow:var(--shadow-menu);padding:5px}.dropdown-item{display:block;width:100%;text-align:left;padding:7px 12px;font-size:13px;border-radius:var(--radius-s);white-space:nowrap}.dropdown-item:hover{background:var(--accent);color:var(--white)}.dropdown-item.is-destructive{color:var(--destructive)}.dropdown-item.is-destructive:hover{background:var(--destructive);color:var(--white)}.dropdown-divider{height:1px;background:var(--card-border);margin:5px 8px}.dropdown-colors{display:flex;gap:6px;padding:7px 12px;flex-wrap:wrap}.color-swatch{width:28px;height:28px;border-radius:var(--radius-circle);border:2.5px solid transparent;flex-shrink:0}.color-swatch.is-selected{border-color:var(--white)}.color-swatch-small{width:18px;height:18px;border-width:2px}.modal-overlay{position:fixed;inset:0;z-index:var(--z-modal);background:var(--overlay);display:flex;align-items:center;justify-content:center;padding:var(--modal-pad)}.modal-window{background:var(--canvas);border:1px solid var(--card-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-modal);max-height:min(720px,90dvh);display:flex;flex-direction:column;overflow:hidden;width:100%}.modal-confirm{max-width:380px}.modal-small{max-width:400px}.modal-medium{max-width:520px}.modal-large{max-width:620px}.modal-window>div{display:flex;flex-direction:column;min-height:0}.confirm-dialog,.add-subject-modal,.manual-add-modal{padding:26px;gap:14px}.confirm-title{font-size:16px;font-weight:700;text-align:center}.confirm-message{font-size:13px;color:var(--text-softer);text-align:center}.confirm-actions{display:flex;flex-direction:row;justify-content:space-between;gap:10px;margin-top:8px}.confirm-actions .button{flex:1}.modal-title-center{font-size:18px;font-weight:600;text-align:center;overflow-wrap:anywhere}.exam-print-modal{gap:10px;overflow-y:auto}.exam-option-group{display:flex;gap:3px;padding:3px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-segment)}.exam-option-button{flex:1;height:34px;font-size:12px;font-weight:600;color:var(--muted);border-radius:var(--radius-control);touch-action:manipulation}.exam-option-button.is-active{color:var(--white);background:var(--accent)}.exam-option-note{font-size:11px;line-height:1.4}.exam-builder-modal{gap:10px;overflow-y:auto}.exam-part-list{display:flex;flex-direction:column;gap:8px}.exam-part-row{display:grid;grid-template-columns:28px 1fr auto;align-items:center;gap:8px;padding:9px 10px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-m)}.exam-part-row.has-issue{border-color:var(--red-40)}.exam-part-info{display:flex;flex-direction:column;gap:5px;min-width:0}.exam-part-count{display:flex;align-items:center;gap:7px;font-size:12px}.exam-part-count .muted-text{white-space:nowrap}.exam-part-count .text-input{width:74px;padding:6px 8px}.exam-part-fixed{font-size:12px}.exam-part-warn{color:var(--destructive);font-size:11px}.exam-part-add-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}.exam-part-add-button{display:flex;align-items:center;justify-content:center;gap:5px;min-height:34px;padding:6px 8px;font-size:12px;font-weight:600;color:var(--text);background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-control);touch-action:manipulation}.exam-part-add-button:disabled{color:var(--muted);opacity:.45}.exam-field-list{display:flex;flex-direction:column;gap:8px}.exam-field-row{display:flex;align-items:center;gap:9px;cursor:pointer}.exam-field-row .text-input{flex:1;min-width:0}.color-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;justify-items:center}.modal-header{display:flex;flex-direction:row!important;align-items:center;gap:12px;padding:20px 24px;border-bottom:1px solid var(--card-border);flex-shrink:0}.modal-header>div{flex:1;min-width:0}.modal-header-icon{color:var(--muted);display:inline-flex}.modal-header-icon.help-icon{color:var(--accent)}.modal-title{font-size:20px;font-weight:700;flex:1}.modal-close{flex-shrink:0}.modal-body{padding:20px 24px;overflow-y:auto;-webkit-overflow-scrolling:touch;flex:1;display:flex;flex-direction:column;gap:10px;min-height:0}.modal-footer{display:flex;flex-direction:row!important;align-items:center;justify-content:space-between;padding:16px 24px;border-top:1px solid var(--card-border);flex-shrink:0}.modal-footer-column{padding:16px 24px 20px;border-top:1px solid var(--card-border);flex-shrink:0;gap:8px}.settings-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-m);padding:14px;display:flex;flex-direction:column;gap:10px;margin-bottom:10px}.data-stats{display:flex;flex-direction:row}.data-stat{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px}.data-stat-icon{color:var(--accent-75);display:inline-flex}.data-stat-value{font-size:18px;font-weight:700}.data-stat-label{font-size:10px;color:var(--muted)}.storage-note{display:flex;align-items:center;gap:6px}.portable-action{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px;border:1px solid var(--card-border);border-radius:var(--radius-s);background:var(--canvas)}.portable-action-title{margin:0 0 3px;font-size:13px;font-weight:700}.portable-action .muted-text{margin:0;font-size:11px}.portable-action .button{flex:none}.health-area{display:none;flex-direction:column;gap:6px;margin-top:10px}.health-row{display:flex;align-items:flex-start;gap:8px;font-size:12px;line-height:1.45}.health-row-icon{display:inline-flex;flex:none;margin-top:2px}.health-ok .health-row-icon{color:var(--green)}.health-warn .health-row-icon{color:var(--yellow)}.health-info,.health-info .health-row-icon{color:var(--muted)}.health-repair{align-self:flex-start;margin-top:4px}.license-modal{text-align:center}.license-icon{display:inline-flex;justify-content:center;width:100%;color:var(--yellow);margin-bottom:6px}.license-form{display:flex;flex-direction:column;gap:8px;margin-top:12px}.license-input{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.license-error{margin:0;font-size:12px;color:var(--destructive);min-height:1em}.license-lock-list{display:flex;flex-direction:column;gap:6px;margin-top:12px;text-align:left}.license-lock-row{display:flex;align-items:flex-start;gap:8px;font-size:12px}.license-lock-row .muted-text{font-size:12px}.license-lock-icon{display:inline-flex;flex-shrink:0;margin-top:2px}.license-device{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:10px}.license-device-code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:15px;font-weight:600;letter-spacing:1px;user-select:all}.about-app{display:flex;flex-direction:row;align-items:center;gap:10px}.about-app-icon{color:var(--accent);display:inline-flex}.about-app-name{font-size:16px;font-weight:700}.about-row{display:flex;flex-direction:row;align-items:center;gap:8px;font-size:13px;color:var(--text-soft)}.about-row .about-link{margin-left:auto;font-size:12px}.about-icon-green{color:var(--green);display:inline-flex}.about-icon-accent{color:var(--accent);display:inline-flex}.settings-divider{border:none;border-top:1px solid var(--card-border);margin:4px 0}.help-section{margin-bottom:18px}.help-section-title{display:flex;align-items:center;gap:8px;margin-bottom:8px}.help-section-title h4{font-size:15px;font-weight:600}.help-icon{color:var(--accent);display:inline-flex}.help-list{list-style:none;padding-left:24px;display:flex;flex-direction:column;gap:6px}.help-list li{font-size:13px;color:var(--text-soft);position:relative;padding-left:14px}.help-list li:before{content:"\2022";position:absolute;left:0;color:var(--muted)}.learn-more-title{display:flex;flex-direction:row;align-items:center;gap:6px;font-size:13px;font-weight:700;margin-bottom:8px}.learn-more-title .icon{color:var(--accent)}.learn-more-list{display:flex;flex-direction:column;gap:8px}.help-nav-button{display:flex;flex-direction:row;align-items:center;gap:10px;padding:10px 12px;background:var(--card-bg);border:1px solid var(--accent-12);border-radius:var(--radius-s);font-size:13px;text-align:left}.help-nav-button:hover{background:var(--card-hover)}.help-nav-title{flex:1;font-weight:500}.help-nav-seen{color:var(--green);display:inline-flex;flex-shrink:0}.session-table-head,.session-row{display:grid!important;grid-template-columns:130px 1fr 70px 130px;gap:8px;align-items:center}.session-table-head{font-size:10px;font-weight:700;font-family:var(--mono);color:var(--muted);padding:6px 0;border-bottom:1px solid var(--card-border)}.session-row{padding:10px 0;border-bottom:1px solid var(--card-border)}.session-cell{min-width:0;overflow-wrap:anywhere}.session-date{font-size:13px;font-weight:500}.session-mode{display:flex;flex-direction:row!important;align-items:center;gap:6px;font-size:13px;color:var(--text-soft)}.session-mode .icon{color:var(--muted)}.session-score{font-size:14px;font-weight:600}.session-accuracy{display:flex;flex-direction:row!important;align-items:center;gap:8px;font-size:14px;font-weight:700}.mini-bar{width:60px;height:6px;background:var(--card-border);border-radius:var(--radius-xxs);overflow:hidden;flex-shrink:0}.mini-bar-fill{height:100%;border-radius:var(--radius-xxs);background:var(--accent)}.mini-bar-fill.bar-green{background:var(--green)}.mini-bar-fill.bar-accent{background:var(--accent)}.mini-bar-fill.bar-orange{background:var(--orange)}.mini-bar-fill.bar-destructive{background:var(--destructive)}.session-end-note{text-align:center;font-size:10px;font-weight:700;font-family:var(--mono);color:var(--grey-40);padding:14px 0 4px}.topic-split{flex:1;min-height:0;display:flex}.mobile-view-toggle{display:none}.mobile-view-button{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px;font-size:13px;font-weight:600;color:var(--muted);background:var(--card-bg);border:1px solid var(--card-border);transition:background .12s ease,color .12s ease}.mobile-view-button:first-child{border-radius:var(--radius-m) 0 0 var(--radius-m);border-right:none}.mobile-view-button:last-child{border-radius:0 var(--radius-m) var(--radius-m) 0}.mobile-view-button.is-active{color:var(--text);background:var(--card-hover);border-color:var(--grey-40)}.mobile-view-count{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 5px;font-size:10px;font-weight:700;border-radius:var(--radius-pill);color:var(--muted);background:var(--grey-20)}.mobile-view-count.has-cards{color:var(--green);background:var(--green-15)}.topic-left{flex:1.2;min-width:360px;display:flex;flex-direction:column;min-height:0;border-right:1px solid var(--card-border)}.topic-left-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:var(--panel-pad) var(--panel-pad) 20px}.title-edit{display:inline-flex;align-items:center;gap:8px;text-align:left}.title-edit-icon{color:var(--grey-60);display:inline-flex}.title-input{font-size:var(--page-title-size);font-weight:700;background:none;border:none;border-bottom:2px solid var(--accent);outline:none;color:var(--text);width:100%;max-width:420px}.blend-button{color:var(--white);background:var(--button-idle)}.blend-button.blend-ready{background:var(--accent)}.blend-button.blend-current{background:var(--green)}.topic-left-scroll{flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:4px var(--panel-pad) var(--panel-pad);display:flex;flex-direction:column;gap:26px}.source-header{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:8px}.chips{display:flex;gap:6px;flex-wrap:wrap}.chip{display:inline-flex;align-items:center;gap:4px;font-size:10px;font-weight:600;padding:3px 9px;border-radius:var(--radius-pill)}.chip-green{color:var(--green);background:var(--green-12)}.chip-muted{color:var(--muted);background:var(--grey-12)}.source-editor{position:relative;background:var(--card-bg);border-radius:var(--radius-l)}.source-textarea{position:relative;z-index:var(--z-source-text);display:block;width:100%;min-height:var(--source-min-height);resize:vertical;background:transparent;border:1px solid var(--card-border);border-radius:var(--radius-l);padding:var(--source-pad);font-family:var(--mono);font-size:12.5px;line-height:1.55;outline:none}.source-textarea:focus{border-color:var(--accent-50)}.source-highlights{position:absolute;inset:0;padding:var(--source-pad);border:1px solid transparent;border-radius:var(--radius-l);font-family:var(--mono);font-size:12.5px;line-height:1.55;white-space:pre-wrap;overflow-wrap:break-word;overflow:hidden;color:transparent;pointer-events:none}.source-mark{background:var(--yellow-30);border-radius:var(--radius-xxs)}.source-mark-heading{background:var(--accent-30);border-radius:var(--radius-xxs)}.source-mark-space{display:inline-block;width:42%;height:.8em;border-radius:var(--radius-xxs);background:var(--grey-20)}.detected-header{display:flex;align-items:center;gap:8px;margin-bottom:12px}.source-zoom-modal{max-width:min(960px,calc(100vw - 48px));height:calc(100dvh - 64px);max-height:calc(100dvh - 48px)}.source-zoom{flex:1;min-height:0;gap:10px;padding:14px 16px calc(14px + env(safe-area-inset-bottom))}.source-zoom-header{display:flex;align-items:center;gap:8px}.source-zoom-chips{flex:1;min-width:0;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.source-zoom-chips .chip{flex:none;white-space:nowrap}.source-zoom-editor{flex:1;min-height:0}.source-zoom-editor .source-textarea{height:100%;min-height:0;resize:none}.source-zoom-editor .source-highlights{overflow:hidden}.panel-subtitle{font-size:13px;font-weight:600}.count-badge{font-size:11px;font-weight:500;padding:2px 7px;border-radius:var(--radius-xs);background:var(--accent-20)}.count-badge-empty{background:var(--grey-20);color:var(--muted)}.tip-box{background:var(--card-bg);border-radius:var(--radius-s);padding:12px;display:flex;flex-direction:column;gap:6px;font-size:13px}.detected-list{display:flex;flex-direction:column;gap:5px}.detected-row{display:flex;align-items:center;gap:8px;min-width:0}.detected-row .text-green{display:inline-flex;flex-shrink:0}.detected-front{font-size:12px;font-weight:700;white-space:nowrap;max-width:45%;overflow:hidden;text-overflow:ellipsis}.detected-arrow{color:var(--muted)}.detected-back{font-size:11px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.skipped-header{display:flex;align-items:center;gap:8px;margin-bottom:10px}.skipped-row{display:flex;align-items:center;gap:8px;padding:6px 8px;background:var(--panel-dim);border-radius:var(--radius-xs);margin-bottom:4px;min-width:0}.skipped-text{flex:1;min-width:0;font-size:11px;color:var(--grey-80);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.skipped-dismiss{width:22px;height:20px;color:var(--grey-50)}.show-more-button{display:flex;align-items:center;justify-content:center;gap:6px;width:100%;padding:8px 12px;margin-top:6px;font-size:12px;font-weight:500;color:var(--accent);background:var(--accent-08);border-radius:var(--radius-s)}.topic-right{flex:1;min-width:300px;display:flex;flex-direction:column;min-height:0;background:var(--canvas-glass)}.review-header{padding:12px 16px;background:var(--panel-dim);border-bottom:1px solid var(--card-border);display:flex;flex-direction:column;gap:10px}.review-header-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.review-title{font-size:16px;font-weight:600}.review-subtitle{font-size:10px;font-weight:600;letter-spacing:.06em;color:var(--muted)}.practice-button{background:var(--button-idle);color:var(--white);font-size:13px;padding:6px 14px}.review-toolbar{display:flex;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap}.tool-button{display:inline-flex;flex-direction:column;align-items:center;gap:2px;min-width:46px;padding:4px 6px;color:var(--muted);border-radius:var(--radius-s);transition:transform .08s ease}.tool-button:hover:not(:disabled){color:var(--text);background:var(--card-bg)}.tool-button:active:not(:disabled){color:var(--text);background:var(--card-bg);transform:scale(.94)}.tool-button.is-active{color:var(--accent)}.tool-label{font-size:9px}.tool-label-row{display:inline-flex;align-items:center;gap:4px;font-size:9px}.tool-button-badge{min-width:17px;padding:1px 4px;color:var(--accent);background:var(--accent-12);border-radius:var(--radius-pill);font-size:9px;font-weight:700;line-height:1.25;text-align:center}.toolbar-divider{width:1px;height:20px;background:var(--card-border);margin:0 4px;align-self:center;flex-shrink:0}.quick-add-form{display:flex;flex-direction:column;gap:6px;padding:10px;background:var(--accent-05);border:1px solid var(--accent-15);border-radius:var(--radius-s)}.quick-add-footer{display:flex;align-items:center;gap:6px;font-size:10px}.review-list-scroll{flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;overflow-wrap:anywhere;padding:20px}.review-list{display:flex;flex-direction:column;gap:16px}.review-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-l);overflow:hidden}.review-card.is-editing{padding:14px;display:flex;flex-direction:column;gap:8px}.card-front-section,.card-back-section{display:flex;align-items:flex-start;gap:10px;padding:14px}.card-back-section{background:var(--shade)}.card-front-text{flex:1;font-size:15px;font-weight:600;min-width:0;overflow-wrap:anywhere}.card-back-text{flex:1;font-size:13px;color:var(--text-softer);min-width:0;overflow-wrap:anywhere}.hidden-label{flex:1;text-align:center;font-size:13px;font-weight:500;color:var(--grey-50);padding:4px 0}.eye-button{color:var(--grey-60);width:26px;height:22px}.card-actions{display:flex;align-items:center;gap:12px;padding:6px 14px 10px}.review-card.is-editing .card-actions{padding:0}.hover-actions{opacity:0;transition:opacity .15s ease}.review-card:hover .hover-actions{opacity:1}.char-note{font-size:10px}.empty-reviewer{display:flex;flex-direction:column;align-items:center;gap:14px;padding:60px 12px 20px}.help-banner{display:flex;align-items:flex-start;gap:10px;width:100%;padding:12px;margin-top:10px;background:var(--card-bg);border:1px solid var(--accent-30);border-radius:var(--radius-m);text-align:left}.help-banner-title{font-size:13px;font-weight:500}.style-bar{display:flex;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap;padding:10px 16px;background:var(--panel-dim-light);border-bottom:1px solid var(--card-border)}.style-button{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:500;color:var(--muted);padding:7px 14px;background:var(--panel-dim-heavy);border-radius:var(--radius-s);position:relative;white-space:nowrap;flex-shrink:0}.style-button.is-active{color:var(--white);font-weight:600}.style-button:disabled{opacity:.4}.qa-timer{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}.tf-box{text-align:center}.tf-term{font-size:18px;font-weight:700;margin-bottom:6px}.tf-definition{font-size:14px;color:var(--text-softer)}.tf-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.tf-button{justify-content:center;font-weight:700;letter-spacing:.06em}.tf-reveal{font-size:13px;color:var(--green)}.enum-input-list{display:flex;flex-direction:column;gap:8px}.enum-input-row,.enum-item-row{display:flex;align-items:center;gap:8px}.enum-input-row .qa-input,.enum-item-row .text-input{flex:1;min-width:0}.enum-num{width:22px;text-align:right;font-size:12px;color:var(--muted);flex-shrink:0}.enum-item-list{display:flex;flex-direction:column;gap:8px}.enum-results-list{display:flex;flex-direction:column;gap:14px;width:100%;text-align:left}.enum-result-row{border-bottom:1px solid var(--card-border);padding-bottom:12px}.enum-chip-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}.enum-chip{display:inline-flex;align-items:center;gap:4px;padding:3px 9px;border-radius:var(--radius-pill);font-size:12px}.enum-chip-hit{color:var(--green);background:var(--green-12)}.enum-chip-miss{color:var(--destructive);background:var(--red-10)}.enum-wrong-note{margin-top:6px;font-size:12px}.share-pick-list{display:flex;flex-direction:column;gap:8px;max-height:42vh;overflow-y:auto;margin-bottom:6px}.share-pick-row{display:flex;align-items:center;gap:10px;padding:9px 12px;border:1px solid var(--card-border);border-radius:var(--radius-m);cursor:pointer}.share-pick-box{accent-color:var(--accent);width:16px;height:16px;flex:none}.share-pick-title{flex:1;min-width:0;overflow-wrap:anywhere}.share-pick-meta{flex:none;font-size:12px}.practice-order-toggle{display:flex;width:fit-content;margin:0 auto 10px}.practice-order-toggle .view-toggle-button{width:auto;height:auto;padding:8px 16px;font-size:13px;font-weight:600}.practice-order-hint{font-size:12px;margin-bottom:10px}.practice-pick-list{display:flex;flex-direction:column;gap:8px;max-height:48vh;overflow-y:auto;margin-bottom:6px}.practice-pick-row{display:flex;align-items:center;gap:10px;min-height:46px;padding:10px 12px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-m);color:var(--text);text-align:left;cursor:pointer}.practice-pick-row.is-indented{margin-left:22px}.practice-pick-title{flex:1;min-width:0;overflow-wrap:anywhere;font-size:14px;font-weight:600}.practice-pick-meta{flex:none;font-size:12px}.practice-pick-play{display:inline-flex;align-items:center;flex:none}.search-box{position:relative;margin-bottom:14px}.search-box-icon{position:absolute;left:11px;top:50%;transform:translateY(-50%);display:flex;color:var(--muted);pointer-events:none}.search-input{padding-left:34px}.check-row{display:flex;align-items:center;gap:9px;margin-top:12px;cursor:pointer}.check-row-text{font-size:13px}.check-row-hint{margin-left:auto;text-align:right}.organize-card-modal{width:100%}.organize-card-list{display:flex;flex-direction:column;gap:8px;max-height:min(340px,45dvh);overflow-y:auto;padding-right:2px}.organize-card-row{display:grid;grid-template-columns:28px 1fr auto;align-items:center;gap:8px;padding:9px 10px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-m)}.organize-card-number{color:var(--muted);font-family:var(--mono);font-size:12px;text-align:right}.organize-card-text{min-width:0}.organize-card-title{overflow:hidden;color:var(--text);font-size:13px;font-weight:700;text-overflow:ellipsis;white-space:nowrap}.organize-card-subtitle{display:-webkit-box;overflow:hidden;margin-top:3px;color:var(--muted);font-size:11px;line-height:1.35;-webkit-box-orient:vertical;-webkit-line-clamp:2}.organize-card-actions{display:flex;gap:4px}.organize-card-actions .icon-button{width:30px;height:30px}.organize-limit-box{display:flex;flex-direction:column;gap:8px;padding:10px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-m)}.organize-limit-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.organize-limit-head .field-label,.organize-limit-head .exam-option-note{margin:0}.organize-move-row{display:grid;grid-template-columns:1fr 1fr auto;align-items:end;gap:8px}.organize-number-field{display:flex;flex-direction:column;gap:6px;min-width:0}.enum-add-modal{overflow-y:auto}.enum-pick-row{display:flex;flex-wrap:wrap;gap:6px}.enum-pick{display:inline-flex;align-items:stretch;border:1px solid var(--card-border);border-radius:var(--radius-pill);background:var(--card-bg);overflow:hidden}.enum-pick.is-active{border-color:var(--accent)}.enum-pick-label{padding:5px 4px 5px 11px;font-size:12px;color:var(--text-soft);max-width:150px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;touch-action:manipulation}.enum-pick-x{display:inline-flex;align-items:center;padding:5px 9px 5px 6px;color:var(--muted);touch-action:manipulation}.enum-pick-x:active{color:var(--destructive)}.enum-note{font-size:11px;padding:0 14px 8px}.class-item-row{display:grid;grid-template-columns:auto minmax(0,1fr) minmax(0,1fr);gap:8px;align-items:center;margin-bottom:8px}.enum-tag{flex-shrink:0;align-self:center;font-size:9px;font-weight:700;letter-spacing:.08em;color:var(--muted);background:var(--panel-dim-heavy);border:1px solid var(--card-border);border-radius:var(--radius-pill);padding:2px 7px;margin-left:6px}.session-time{font-size:11px}.results-badge{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 5px;font-size:10px;font-weight:700;color:var(--white);border-radius:var(--radius-pill)}.unlock-hint{display:flex;align-items:center;justify-content:center;gap:8px;padding:8px 32px;font-size:12px;color:var(--muted);background:var(--accent-08)}.unlock-hint .icon{color:var(--accent-80)}.qa-stage{flex:1;min-height:0;position:relative;display:flex;flex-direction:column;overflow-wrap:anywhere}.qa-scroll{flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:24px 24px 90px}.qa-column{max-width:700px;margin:0 auto;display:flex;flex-direction:column;gap:20px}.qa-column-wide{max-width:900px}.back-to-topic{position:absolute;left:32px;bottom:24px}.qa-progress{display:flex;flex-direction:column;align-items:center;gap:8px}.qa-progress-label{font-size:12px;font-weight:700;font-family:var(--mono);color:var(--muted)}.qa-progress-row{display:flex;align-items:center;gap:10px}.qa-progress-count{font-size:36px;font-weight:700}.qa-progress-sep{font-size:22px;color:var(--muted)}.qa-progress-total{font-size:36px;font-weight:700;color:var(--muted)}.qa-progress-bar{width:160px;height:8px;border-radius:var(--radius-xs);background:var(--card-border);overflow:hidden;margin-left:8px}.qa-progress-fill{height:100%;border-radius:var(--radius-xs);transition:width .2s ease}.qa-score-row{display:flex;align-items:center;gap:16px;padding-top:2px;justify-content:center}.qa-score{display:inline-flex;align-items:center;gap:5px;font-size:17px;font-weight:600}.qa-score-divider{width:1px;height:18px;background:var(--card-border)}.qa-index-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);overflow:hidden}.qa-card-half{display:flex;flex-direction:column;align-items:center;gap:8px;padding:30px;text-align:center}.qa-card-definition{background:var(--shade-soft)}.qa-card-divider{height:1px}.qa-card-label{font-size:11px;font-weight:700;font-family:var(--mono)}.qa-term{font-size:24px;font-weight:700}.qa-definition{font-size:18px;color:var(--text-soft)}.reveal-button{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;padding:9px 18px;border-radius:var(--radius-pill)}.index-setup-card{display:flex;flex-direction:column;align-items:center;gap:14px;padding:28px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl);text-align:center}.index-mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:100%}.index-mode-button{display:flex;min-width:0;min-height:92px;flex-direction:column;align-items:center;justify-content:center;gap:7px;padding:14px;color:var(--text-soft);background:var(--canvas);border:1px solid var(--card-border);border-radius:var(--radius-m);text-align:center;touch-action:manipulation}.index-mode-button:hover{border-color:var(--accent-50)}.index-mode-label{font-size:13px;font-weight:700}.index-mode-note{color:var(--muted);font-size:11px;line-height:1.35}.index-mode-picker{display:flex;flex-direction:column;align-items:center;gap:8px;width:min(100%,560px);margin:0 auto}.index-mode-grid-compact{grid-template-columns:repeat(4,minmax(0,1fr))}.index-mode-button.is-compact{min-height:56px;gap:5px;padding:9px 8px}.index-mode-button.is-compact .index-mode-label{font-size:11px}.qa-question-box{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-question);padding:26px;font-size:19px;font-weight:500;color:var(--text-strong)}.qa-choice-view{display:flex;flex-direction:column;gap:20px}.qa-choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.qa-choice{display:flex;align-items:center;gap:10px;padding:14px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-m);text-align:left;font-size:14px;font-weight:500;color:var(--text-strong);min-width:0}.qa-choice .choice-text{flex:1;min-width:0}.qa-choice:disabled{opacity:1}.qa-choice:hover:not(:disabled){background:var(--card-hover)}.qa-choice.is-correct{background:var(--green-12);border-color:var(--green-40)}.qa-choice.is-wrong{background:var(--red-12);border-color:var(--red-40)}.choice-letter{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;font-size:13px;font-weight:700;border-radius:var(--radius-s);flex-shrink:0}.qa-choice.is-correct .choice-letter{color:var(--green);background:var(--green-15)}.choice-text{flex:1;min-width:0}.qa-input-view{display:flex;flex-direction:column;gap:4px}.qa-input{width:100%;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-l);padding:16px;font-size:17px;outline:none}.qa-input-area{resize:vertical;min-height:140px}.qa-input-view .qa-question-box{margin-top:12px;font-size:18px}.qa-nav{padding-top:4px;gap:12px}.qa-next-button{color:var(--white);background:var(--card-bg);padding:10px 26px;font-size:15px}.match-play{display:flex;flex-direction:column;gap:20px}.match-banner{display:flex;align-items:center;gap:12px;padding:10px 14px;background:var(--accent-06);border:1px solid var(--accent-15);border-radius:var(--radius-m);flex-wrap:wrap}.match-count-picker{display:flex;gap:3px;padding:3px;background:var(--canvas);border:1px solid var(--card-border);border-radius:var(--radius-segment)}.match-count-button{width:34px;height:24px;font-size:11px;font-weight:600;color:var(--muted);border-radius:var(--radius-control)}.match-count-button.is-active{color:var(--white)}.match-columns{display:flex;gap:40px;align-items:flex-start}.match-column{flex:1;display:flex;flex-direction:column;gap:8px;min-width:0}.match-term-row,.match-def-row{display:flex;align-items:flex-start;gap:10px;padding:10px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-s)}.match-term-row{align-items:center}.match-input{width:28px;height:28px;text-align:center;font-size:13px;font-weight:700;background:var(--canvas);border:1px solid var(--card-border);border-radius:var(--radius-control);outline:none;flex-shrink:0;text-transform:uppercase}.match-input.is-filled{border-color:var(--accent-50)}.match-input.is-invalid{border-color:var(--destructive)}.match-number{font-size:11px;font-weight:700;color:var(--muted);flex-shrink:0}.match-term{font-size:13px;font-weight:600;min-width:0}.match-letter{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;font-size:12px;font-weight:700;border-radius:var(--radius-control);flex-shrink:0}.match-def-text{font-size:12px;color:var(--text-dim);min-width:0}.results-card{display:flex;flex-direction:column;align-items:center;gap:16px;max-width:700px;margin:24px auto 0;padding:36px;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-xl)}.results-check{display:inline-flex}.results-title{font-size:24px;font-weight:700;text-align:center}.accuracy-ring-box{position:relative;width:100px;height:100px;margin:6px 0}.accuracy-ring{width:100px;height:100px}.accuracy-ring-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}.accuracy-value{font-size:22px;font-weight:700}.accuracy-label{font-size:8px;font-weight:700;font-family:var(--mono);color:var(--muted)}.stat-row{display:flex;gap:12px;width:100%;max-width:600px}.stat-box{flex:1;display:flex;flex-direction:column;align-items:flex-start;gap:4px;padding:12px;background:var(--shade);border-radius:var(--radius-s)}.stat-label{font-size:9px;font-weight:700;font-family:var(--mono);color:var(--muted)}.stat-value{font-size:20px;font-weight:700}.mastery-tag{display:inline-block;font-size:12px;font-weight:700;padding:3px 8px;border-radius:var(--radius-xs)}.match-results-list,.input-results-list{display:flex;flex-direction:column;gap:8px;width:100%;max-width:600px}.match-result-row{display:flex;align-items:flex-start;gap:10px;padding:10px;background:var(--shade);border-radius:var(--radius-s);width:100%;text-align:left}.result-dot{width:8px;height:8px;border-radius:var(--radius-circle);margin-top:6px;flex-shrink:0}.dot-green{background:var(--green)}.dot-red{background:var(--destructive)}.match-result-term{font-size:13px;font-weight:600}.match-result-body p:last-child{font-size:11px;font-weight:500}.input-result-row{display:flex;flex-direction:column;gap:6px;padding:12px;background:var(--shade);border-radius:var(--radius-s);width:100%;text-align:left}.answer-compare{display:flex;align-items:flex-start;gap:8px}.answer-side{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.answer-text{font-size:13px;font-weight:500;overflow-wrap:anywhere}.is-clamped{display:-webkit-box;-webkit-line-clamp:6;-webkit-box-orient:vertical;overflow:hidden}.input-result-shown.is-clamped{-webkit-line-clamp:4}.start-over{display:flex;flex-direction:column;gap:10px;width:100%}@media(max-width:960px){:root{--page-pad-x: 24px;--page-pad-y: 24px;--panel-pad: 16px;--topbar-pad-x: 16px;--source-min-height: 240px}.topic-split{flex-direction:column;overflow-y:auto;-webkit-overflow-scrolling:touch}.topic-left,.topic-right{flex:none;min-width:0;min-height:auto}.topic-left{border-right:none;border-bottom:1px solid var(--card-border)}.topic-left-scroll,.review-list-scroll{flex:none;min-height:auto;overflow-y:visible}.mobile-view-toggle{display:flex;position:sticky;top:0;z-index:var(--z-sticky);padding:10px var(--panel-pad);background:var(--canvas);border-bottom:1px solid var(--card-border)}.topic-split.show-source .topic-right,.topic-split.show-cards .topic-left{display:none}.match-columns{flex-direction:column;align-items:stretch;gap:20px}}@media(max-width:640px){:root{--page-pad-x: 14px;--page-pad-y: 20px;--topbar-pad-x: 10px;--topbar-pad-y: 8px;--page-title-size: 22px;--source-min-height: 200px;--footer-pad-x: 12px;--footer-font-size: 10px;--modal-pad: 10px;--grid-card-min: 150px;--grid-gap: 12px}.text-input,.textarea-small,.source-textarea,.source-highlights,.qa-input,.match-input,.title-input{font-size:16px}.top-bar{gap:6px;align-items:flex-start}.top-bar-actions{gap:0;margin-left:auto}.breadcrumb{flex:1;min-width:0;flex-wrap:wrap;row-gap:0}.crumb{white-space:normal;overflow-wrap:anywhere;max-width:none;text-align:left}.crumb{font-size:13px;padding:2px;white-space:normal;overflow-wrap:anywhere;text-align:left}.crumb-sep{padding:0 2px}.crumb-ellipsis{max-width:none}.crumb-muted-label{padding-left:8px}.class-item-row{grid-template-columns:auto minmax(0,1fr)}.class-item-row input:last-child{grid-column:2}.dashboard-top-bar{flex-direction:column;align-items:stretch;gap:4px}.dashboard-top-bar .top-bar-actions{order:-1;margin-left:auto}.dashboard-top-bar .breadcrumb{width:100%}.subject-page .section-title-row{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;column-gap:10px;row-gap:12px}.subject-page .section-title-row .page-title{grid-column:2}.subject-page .section-title-row .title-icon-actions{grid-column:3}.subject-page .section-title-actions{grid-column:1 / -1;display:flex;align-items:center;gap:10px;margin-left:0;width:100%}.subject-page .title-action-group{display:flex;flex:1;gap:10px;order:-1}.subject-page .title-action-group .button{flex:1}.topic-left-header{flex-direction:column;align-items:stretch;gap:12px;padding:16px var(--panel-pad) 12px}.blend-button-box{display:flex}.blend-button-box .blend-button{flex:1}.title-input{max-width:none}.topic-left-scroll{padding:4px var(--panel-pad) 20px;gap:20px}.review-header{padding:12px var(--panel-pad)}.review-list-scroll{padding:14px var(--panel-pad) 24px}.review-toolbar{gap:4px}.style-bar{justify-content:flex-start;overflow-x:auto;-webkit-overflow-scrolling:touch;flex-wrap:nowrap;padding:10px 12px}.style-button span{display:none}.style-button{padding:8px 10px}.unlock-hint{padding:8px 14px}.qa-scroll{padding:16px 14px 24px}.qa-question-box{padding:18px;font-size:16px}.qa-input-view .qa-question-box{font-size:16px}.qa-term{font-size:20px}.qa-definition{font-size:16px}.qa-card-half{padding:22px 16px}.qa-progress-count,.qa-progress-total{font-size:30px}.qa-progress-bar{width:120px}.index-mode-grid,.index-mode-grid-compact{grid-template-columns:1fr}.index-mode-button,.index-mode-button.is-compact{min-height:64px}.qa-choice-grid{grid-template-columns:1fr}.app-shell.in-qa .app-footer{display:none}.back-to-topic{position:static;padding:6px 14px calc(6px + env(safe-area-inset-bottom));border-top:1px solid var(--card-border);background:var(--canvas)}.back-to-topic .button{width:100%}.qa-stage.is-question-active .back-to-topic{display:none}.qa-stage.is-question-active .qa-scroll{padding-bottom:0;display:flex;flex-direction:column}.qa-stage.is-question-active .qa-column{min-height:100%;width:100%}.qa-stage.is-question-active .qa-nav{position:sticky;bottom:0;z-index:var(--z-qa-sticky);margin:auto -14px 0;padding:6px 14px calc(6px + env(safe-area-inset-bottom));border-top:1px solid var(--card-border);background:var(--canvas)}.qa-stage.is-question-active .qa-nav .button{flex:1;justify-content:center}.match-input{width:38px;height:38px}.match-term-row,.match-def-row{padding:12px 10px}.match-term{font-size:14px}.match-def-text{font-size:13px}.match-banner{padding:10px;gap:8px}.results-card{padding:22px 14px}.answer-compare{flex-wrap:wrap}.modal-window{max-height:calc(100dvh - 20px)}.source-zoom-modal{height:calc(100dvh - 20px)}.source-zoom{padding:10px 12px calc(10px + env(safe-area-inset-bottom))}.source-zoom-header{flex-wrap:wrap;row-gap:8px}.source-zoom-chips{order:2;flex-basis:100%;overflow-x:visible;flex-wrap:wrap}.modal-header{padding:14px 16px}.modal-title{font-size:17px}.modal-body{padding:16px}.modal-footer,.modal-footer-column{padding:12px 16px}.confirm-dialog,.add-subject-modal,.manual-add-modal{padding:18px}.session-table-head,.session-row{grid-template-columns:84px 1fr 48px 92px}.mini-bar{width:40px}.portable-action{align-items:stretch;flex-direction:column}.portable-action .button{justify-content:center;width:100%}}@media(max-width:400px){:root{--page-pad-x: 12px;--icon-button-width: 28px;--grid-gap: 10px;--subject-card-min-height: 130px}.subject-grid{grid-template-columns:repeat(2,1fr);gap:var(--grid-gap)}.feature-cards{grid-template-columns:1fr}.data-stats{flex-wrap:wrap;row-gap:10px}.data-stat{flex-basis:50%}.tool-button{min-width:40px}.qa-progress-bar{width:90px}.center-row{gap:8px}}@media(hover:none){.hover-actions{opacity:1}.icon-button{min-width:34px;height:32px}.eye-button{width:32px;height:28px}.skipped-dismiss{width:30px;height:28px}}