@font-face{font-family:Inter;src:url(/fonts/inter-latin.woff2) format("woff2");font-style:normal;font-weight:100 900;font-display:swap}.auth-page{min-height:100dvh;display:flex;flex-direction:column;background:radial-gradient(ellipse at 50% 25%,var(--accent-soft),transparent 60%)}.auth-brand{display:flex;gap:12px;align-items:center;padding:24px 32px;font:700 22px Chakra Petch,sans-serif;letter-spacing:2px}.auth-brand small{font:500 10px Inter,sans-serif;color:var(--muted);letter-spacing:2px;margin-left:10px}.auth-shell{display:grid;place-items:center;flex:1;padding:24px 20px 36px}.auth-card{width:min(440px,100%);padding:32px;background:var(--surface);border:1px solid var(--border);border-radius:24px;box-shadow:0 24px 80px #0000001f}.auth-card>.app-logo{margin-bottom:22px}.auth-card h1{font-size:30px;line-height:1.2;margin:9px 0 12px;letter-spacing:-.6px}.auth-description{font-size:13px;line-height:1.7;margin-bottom:26px}.auth-card .field-label{display:block;margin:20px 0 8px}.auth-card form>.field-label:first-child{margin-top:0}.auth-card .button{margin-top:20px;min-height:48px}.password-field{position:relative}.password-field input{padding-right:48px}.password-field .icon-button{position:absolute;right:6px;top:50%;transform:translateY(-50%);color:var(--muted)}.auth-hint{font-size:11px;color:var(--muted);margin-top:8px}.auth-switch{font-size:12px;color:var(--muted);text-align:center;margin-top:24px;line-height:1.7}.auth-switch a,.auth-link,.auth-forgot{color:var(--accent-text);font-weight:500}.auth-forgot{display:block;width:fit-content;margin:12px 0 0 auto;font-size:12px}.auth-link{display:block;margin-top:16px;font-size:12px}.auth-callout{display:flex;align-items:flex-start;gap:12px;font-size:12px;line-height:1.7;background:var(--accent-soft);padding:16px;border-radius:12px;margin-bottom:24px}.auth-callout svg{flex-shrink:0;color:var(--accent-text)}.auth-success{color:var(--positive);font-size:12px;line-height:1.7;margin-top:18px}.auth-success-icon{color:var(--positive);display:block;margin-bottom:20px}.auth-footer{text-align:center;color:var(--faint);font-size:11px;padding:0 20px 24px}.profile-email{color:var(--muted);font-size:13px;margin-bottom:18px;overflow-wrap:anywhere}.auth-signout{margin-top:14px}@media(max-width:480px){.auth-brand{padding:20px;font-size:20px}.auth-brand small{font-size:9px;margin-left:6px}.auth-card{padding:26px 22px}.auth-shell{padding-top:12px}}@font-face{font-family:Chakra Petch;src:url(/fonts/chakra-petch-600.woff2) format("woff2");font-style:normal;font-weight:600;font-display:swap}@font-face{font-family:Chakra Petch;src:url(/fonts/chakra-petch-700.woff2) format("woff2");font-style:normal;font-weight:700;font-display:swap}:root{font-family:Inter,system-ui,sans-serif;color:#f1f1f1;background:#0f1115;--bg: #0f1115;--surface: #1a1d24;--surface-raised: #22262f;--border: #2a2e37;--text: #f1f1f1;--muted: #979da8;--faint: #707784;--accent: #e63946;--accent-text: #ff7b86;--accent-soft: rgb(230 57 70 / 10%);--track: #2a2e37;--positive: #88c4a5;font-synthesis:weight;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;color-scheme:dark}:root[data-theme=light]{color-scheme:light;color:#242731;background:#f5f3ee;--bg: #f5f3ee;--surface: #fffefa;--surface-raised: #eeede8;--border: #e0ded7;--text: #242731;--muted: #72757e;--faint: #8a8d94;--accent-text: #b72434;--track: #e5e2dc;--positive: #2c7b55}*{box-sizing:border-box}body{margin:0;min-width:320px;background:var(--bg)}button,input,textarea,select{font:inherit}button,a,input,textarea,select,summary{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}button{color:inherit}button:disabled{cursor:not-allowed}button,a{touch-action:manipulation}a{color:inherit;text-decoration:none}button,input,textarea,select{outline-offset:4px}:focus-visible{outline:2px solid var(--accent-text);outline-offset:4px}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:Chakra Petch,Inter,sans-serif;font-weight:700}button,a,summary{transition:background .18s,border-color .18s,transform .18s,color .18s}::selection{background:#e6394659}.app-shell{width:min(1060px,100%);padding:30px 38px 24px;margin:0 auto;display:flex;flex-direction:column;min-height:100dvh}.home-shell{max-width:920px}.app-header{min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:inline-flex;align-items:center;gap:10px;font-family:Chakra Petch,sans-serif;font-size:20px;letter-spacing:2px;font-weight:700}.app-logo{display:inline-block;flex-shrink:0;object-fit:cover;border-radius:27%;clip-path:inset(1.35% round 27%);vertical-align:middle}.app-logo.spin{animation:logo-breathe 1.8s ease-in-out infinite}.avatar{display:grid;place-items:center;padding:0}.avatar .app-logo{width:90%;height:90%}.subject-icon>.app-logo{width:90%;height:90%}.icon-picker button{display:grid;place-items:center}.sheet-title{display:flex;align-items:center;gap:10px}.sheet-title h2{min-width:0;overflow-wrap:anywhere}.brand>span{display:flex;align-items:baseline;gap:10px}.brand-sub{font:500 10px Inter,sans-serif;letter-spacing:2px;color:var(--muted)}.avatar{width:44px;height:44px;border:1.5px solid var(--border);border-radius:50%;background:var(--surface-raised);font-weight:600;flex-shrink:0}.avatar:hover{border-color:var(--accent)}.page-heading{position:relative;margin:44px 0 28px}.page-heading h1{font-size:42px;line-height:1.15;letter-spacing:-.9px;position:relative}.heading-dot{color:var(--accent)}.heading-brush{position:absolute;top:33px;left:-4px;width:230px;height:30px;background:var(--accent-soft);transform:rotate(-4deg);border-radius:55% 20% 50% 18%}.eyebrow{font-size:10px;font-weight:600;letter-spacing:1.9px;color:var(--muted);line-height:1.6}.page-heading .eyebrow{margin-bottom:9px}.page-subtitle{font-size:13px;color:var(--muted);margin-top:12px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;line-height:1.6}.separator{color:var(--faint)}.inline-icon{display:inline-flex;gap:6px;align-items:center}.inline-icon .lucide-flame{color:var(--accent-text)}.muted{color:var(--muted)}.small{font-size:12px}.centered{text-align:center}.empty-home{text-align:center;display:flex;flex-direction:column;align-items:center;padding:12px 0 64px}.mascot-wrap{position:relative;width:200px;height:200px;margin-bottom:24px}.mascot-wrap img{display:block}.mascot-spark{position:absolute;background:var(--accent);width:5px;height:5px;transform:rotate(45deg)}.spark-one{left:-5px;top:88px;opacity:.6}.spark-two{right:-10px;top:146px;width:3px;height:3px;opacity:.7}.empty-chip{color:var(--muted);background:var(--surface);font-size:9px!important;letter-spacing:1.4px;padding:7px 12px!important;border:1px solid var(--border)}.empty-home h2{font-size:33px;line-height:1.2;margin-top:19px;letter-spacing:-.5px}.empty-home h2 span{color:var(--muted)}.empty-home>p{font-size:14px;color:var(--muted);line-height:1.8;margin:15px 0 24px}.empty-home .button{padding:0 24px;gap:12px}.empty-formats{display:flex;align-items:center;gap:12px;font-size:10px;color:var(--faint);margin-top:23px}.empty-formats i{width:3px;height:3px;background:var(--border);border-radius:50%}.mobile-break{display:none}.app-footer{margin-top:auto;padding-top:32px;text-align:center;display:flex;gap:7px;align-items:center;justify-content:center;font-size:10px;color:var(--faint)}.app-footer svg{opacity:.65}.fab{position:fixed;bottom:30px;right:max(30px,calc((100vw - 1020px)/2));z-index:5;display:flex;align-items:center;gap:6px;border:1px solid rgb(255 255 255 / 10%);color:#fff;background:var(--accent);height:58px;padding:0 19px 0 8px;border-radius:18px;box-shadow:0 8px 30px #e639463b;font-weight:600;font-size:13px}.fab:hover{background:#ce2e3d;transform:translateY(-2px)}.fab-icon{position:relative;display:grid;place-items:center;width:44px;height:44px}.fab-icon .app-logo{grid-area:1/1}.fab-icon>.lucide-plus{position:absolute;right:-1px;bottom:-1px;width:19px;height:19px;padding:2px;border-radius:50%;background:var(--accent);border:1px solid rgb(255 255 255 / 65%)}.drill-list{display:flex;flex-direction:column;gap:14px;padding-bottom:55px}.drill-card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:21px 24px 17px}.drill-card:hover{background:var(--surface-raised);border-color:#48404a;transform:translateY(-2px)}.drill-card-top{display:flex;gap:14px;align-items:center}.subject-icon{background:var(--surface-raised);border:1px solid rgb(150 150 150 / 6%);width:48px;height:48px;border-radius:13px;display:grid;place-items:center;font-size:24px;flex-shrink:0}.drill-card-title{flex:1;min-width:0}.drill-card-title h2{font-size:21px;line-height:1.3;overflow-wrap:anywhere}.drill-card-title p{font-size:12px;color:var(--muted);margin-top:5px}.drill-card-title p>span{padding:0 3px}.card-arrow{color:var(--faint)}.mastery-row{display:flex;gap:14px;align-items:center;margin-top:19px}.mastery-row>strong{width:39px;text-align:right;font-size:12px;font-weight:600}.progress-track{height:5px;background:var(--track);border-radius:10px;overflow:hidden;width:100%}.progress-fill{height:100%;border-radius:inherit;background:var(--accent);transition:width .35s}.drill-card-bottom{display:flex;justify-content:space-between;align-items:center;gap:12px;color:var(--muted);font-size:11px;margin-top:12px}.status-chip{display:inline-flex;align-items:center;gap:6px;font-size:10px;border-radius:20px;padding:4px 8px}.forging-chip{color:var(--accent-text);background:linear-gradient(100deg,var(--accent-soft) 25%,rgb(230 57 70 / 23%) 48%,var(--accent-soft) 70%);background-size:240% 100%;animation:shimmer 3s infinite}.done-chip{color:var(--positive);background:#5096641f}.back-link{display:inline-flex;gap:9px;align-items:center;font-size:13px;font-weight:500;color:var(--muted)}.back-link:hover{color:var(--text)}.drill-heading{display:flex;align-items:center;justify-content:space-between;gap:25px;margin:38px 0 26px}.drill-heading-content{min-width:0;flex:1}.drill-title-row{display:flex;align-items:center;gap:16px;margin-top:10px}.drill-title-row h1{font-size:34px;letter-spacing:-.6px;overflow-wrap:anywhere;line-height:1.15}.large-subject{width:60px;height:60px;font-size:29px;border-radius:17px}.drill-heading .page-subtitle{margin-left:77px;font-size:11px}.drill-heading-right{display:flex;align-items:center;gap:16px}.progress-ring{position:relative;width:112px;height:112px;flex-shrink:0}.progress-ring svg{width:100%;height:100%;transform:rotate(-90deg);fill:none;stroke-width:7px}.ring-track{stroke:var(--track)}.ring-fill{stroke:var(--accent);stroke-linecap:round;transition:stroke-dashoffset .4s}.progress-ring>div{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column}.progress-ring strong{font:700 29px Chakra Petch,sans-serif;line-height:1.2}.progress-ring strong span{font-size:15px;margin-left:1px}.progress-ring small{font-size:9px;color:var(--muted);margin-top:3px}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);background:var(--surface);border:1px solid var(--border);border-radius:15px;padding:21px 0;margin-bottom:28px}.stats-row>div{display:flex;justify-content:center;align-items:center;gap:10px}.stats-row>div+div{border-left:1px solid var(--border)}.stats-row svg{color:var(--accent-text)}.stats-row strong{font:600 24px Chakra Petch,sans-serif}.stats-row span{font-size:11px;color:var(--muted)}.drill-columns{display:grid;grid-template-columns:1fr 1fr;align-items:start;gap:22px}.panel{padding:26px;border-radius:19px;border:1px solid var(--border);background:var(--surface);min-width:0}.section-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.section-heading h2{font-size:23px}.section-heading p{margin-top:5px;font-size:11px;color:var(--muted)}.section-number{font:600 24px Chakra Petch,sans-serif;color:var(--border)}.empty-materials{padding:23px 0 25px;text-align:center}.empty-scroll{display:inline-flex;position:relative;color:var(--muted);background:var(--surface-raised);padding:22px;border-radius:20px;transform:rotate(-7deg);margin-bottom:23px;border:1px solid var(--border)}.empty-scroll>span{position:absolute;right:3px;top:0;font-size:25px;color:var(--accent-text)}.empty-materials h3{font-size:16px;margin-bottom:9px}.empty-materials p{color:var(--muted);font-size:12px;line-height:1.8}.add-actions{display:grid;grid-template-columns:1.1fr 1fr;gap:9px;margin-top:8px}.add-actions .button{font-size:11px;padding:0 10px;height:45px;border-radius:11px;gap:7px}.add-actions .button-ghost{background:var(--accent-soft);color:var(--accent-text)}.forge-section{margin-top:25px;padding-top:21px;border-top:1px solid var(--border)}.forge-button-row{display:flex;gap:8px}.forge-button-row .button{height:47px;font-size:12px}.forge-options{height:47px!important;width:43px!important;flex-shrink:0;border:1px solid var(--border)!important}.forge-caption{font-size:10px;text-align:center;color:var(--muted);margin-top:11px;line-height:1.7}.generation-options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:15px}.generation-options label{color:var(--muted);font-size:11px}.generation-options select{height:40px;margin-top:7px;font-size:12px;padding:0 8px}.mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.mode-card{min-height:167px;padding:17px 16px 14px;border:1px solid var(--border);border-radius:14px;background:var(--surface-raised);text-align:left}.mode-card:hover:not(:disabled){border-color:var(--accent);transform:translateY(-2px)}.mode-card:disabled{opacity:.65}.mode-card-top{display:flex;align-items:center;justify-content:space-between;color:var(--faint);margin-bottom:17px}.mode-icon{color:var(--accent-text);display:grid;place-items:center}.mode-card h3{font-size:16px;line-height:1.2}.mode-card p{font-size:10px;color:var(--muted);margin-top:6px;line-height:1.5;min-height:28px}.mode-count{display:flex;align-items:center;justify-content:space-between;font-size:10px;margin-top:16px;color:var(--muted)}.mode-count svg{opacity:.5}.practice-hint{margin-top:20px;display:flex;align-items:center;justify-content:center;gap:7px;font-size:10px;color:var(--muted);line-height:1.6}.materials-list{list-style:none;padding:0;margin:0 0 20px;display:flex;flex-direction:column}.materials-list>li{display:flex;align-items:center;gap:5px;flex-wrap:wrap;padding:13px 0}.materials-list>li+li{border-top:1px solid var(--border)}.material-main{display:flex;gap:11px;align-items:center;text-align:left;min-width:0;flex:1;padding:0;border:0;background:none}.material-main:hover .material-info strong{color:var(--accent-text)}.file-icon{width:40px;height:40px;flex-shrink:0;display:grid;place-items:center;background:var(--surface-raised);border-radius:11px;color:var(--muted)}.file-icon-pdf{color:var(--accent-text)}.file-icon-prompt{color:#bb9cde}.material-info{min-width:0;display:flex;flex-direction:column;gap:6px}.material-info strong{font-size:12px;font-weight:500;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.material-info>span{font-size:10px;color:var(--muted)}.material-info>span>span{margin:0 3px}.material-error{font-size:10px;color:var(--accent-text);margin:9px 0 0 51px;line-height:1.6}.action-menu{position:relative;flex-shrink:0}.action-menu summary{list-style:none}.action-menu summary::-webkit-details-marker{display:none}.menu-popover{position:absolute;top:calc(100% + 5px);right:0;width:184px;padding:5px;background:var(--surface-raised);border:1px solid var(--border);box-shadow:0 10px 35px #0003;z-index:8;border-radius:11px}.menu-popover button{width:100%;display:flex;gap:10px;align-items:center;padding:12px 10px;border-radius:6px;font-size:12px;border:0;background:none}.menu-popover button:hover{background:var(--bg)}.danger-text,.error-text{color:var(--accent-text)}.forging-panel{padding:23px 12px;text-align:center;margin-bottom:20px;border:1px solid rgb(230 57 70 / 20%);background:var(--accent-soft);border-radius:15px}.forge-orbit{width:69px;height:69px;border-radius:50%;border:1px dashed rgb(230 57 70 / 45%);display:grid;place-items:center;margin:0 auto 17px;color:var(--accent)}.forging-panel h3{font-size:20px}.forging-panel>p{color:var(--muted);font-size:11px;margin:7px 0 18px}.forge-steps{display:flex;justify-content:center;gap:19px;font-size:10px;color:var(--faint)}.forge-steps span{display:inline-flex;align-items:center;gap:6px}.forge-steps i{width:5px;height:5px;border-radius:50%;background:currentColor}.forge-steps .active{color:var(--accent-text)}.generation-failed{margin-bottom:20px}.generation-failed .button{font-size:12px;height:40px}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:49px;border-radius:12px;border:1px solid transparent;padding:0 20px;font-size:13px;font-weight:600;line-height:1.3}.button-primary{background:var(--accent);color:#fff}.button-primary:hover:not(:disabled){background:#cf2e3e}.button-secondary{background:var(--surface-raised);border-color:var(--border)}.button-secondary:hover:not(:disabled){border-color:var(--faint)}.button-ghost{background:transparent;color:var(--muted)}.button-ghost:hover:not(:disabled){background:var(--surface-raised);color:var(--text)}.button-danger{background:var(--accent-soft);border-color:#e639464d;color:var(--accent-text)}.button-danger:hover:not(:disabled){background:#e6394633}.button:disabled{opacity:.45}.full-width{width:100%}.button-row{display:flex;justify-content:flex-end;gap:10px;margin-top:26px}.icon-button{width:36px;height:36px;display:inline-grid;place-items:center;border:none;border-radius:9px;background:transparent;color:var(--muted);padding:0}.icon-button:hover{background:var(--surface-raised);color:var(--text)}.icon-button.selected{color:var(--accent-text);background:var(--accent-soft)}.text-button{background:none;border:none;color:var(--accent-text);display:inline-flex;gap:6px;align-items:center;font-size:12px;padding:0}.text-button:hover{text-decoration:underline}.sheet{width:min(540px,calc(100vw - 40px));max-height:calc(100dvh - 50px);padding:0;border-radius:22px;background:var(--surface);color:var(--text);border:1px solid var(--border);box-shadow:0 25px 90px #00000059;margin:auto;overflow:auto;animation:appear .18s ease-out}.sheet::backdrop{background:#050608ba;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.sheet-handle{display:none}.sheet-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;padding:27px 27px 19px;position:sticky;top:0;background:var(--surface);z-index:2}.sheet-heading h2{font-size:26px;overflow-wrap:anywhere;line-height:1.15}.sheet-heading p{margin-top:9px;font-size:12px;line-height:1.6}.close-button{flex-shrink:0;background:var(--surface-raised);width:34px;height:34px}.close-button:disabled{opacity:.4}.sheet-body{padding:0 27px 27px}.modal-submit{margin-top:28px}.field-label{font-size:12px;font-weight:500;display:block;margin-bottom:9px}.label-row{display:flex;justify-content:space-between;gap:12px}.optional{font-size:10px;font-weight:400;color:var(--muted);margin-left:5px}.spaced-label{margin-top:24px}input:not([type=radio]):not([type=checkbox]):not([type=file]),textarea,select{width:100%;border:1px solid var(--border);border-radius:10px;color:var(--text);background:var(--bg);padding:13px 14px;font-size:13px;line-height:1.5}input:not([type=radio]):not([type=checkbox]):not([type=file]){height:49px}textarea{resize:vertical;min-height:105px}input::placeholder,textarea::placeholder{color:var(--faint)}input:focus,textarea:focus,select:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px var(--accent-soft)}.icon-picker{display:grid;grid-template-columns:repeat(8,1fr);gap:7px}.icon-picker button{min-width:0;height:48px;font-size:23px;background:var(--surface-raised);border:1px solid var(--border);border-radius:10px;padding:0}.icon-picker button.selected{background:var(--accent-soft);border-color:var(--accent)}.segmented{display:grid;grid-template-columns:1fr 1fr;padding:4px;gap:4px;border-radius:11px;background:var(--bg)}.segmented button{border:0;border-radius:8px;background:none;color:var(--muted);min-height:40px;font-weight:500;font-size:12px;display:inline-flex;align-items:center;justify-content:center;gap:8px}.segmented button.selected{background:var(--surface-raised);color:var(--text)}.segmented button:disabled{opacity:.5}.dropzone{width:100%;border:1.5px dashed #454b56;background:var(--bg);border-radius:14px;padding:23px 12px 19px;margin-top:18px;display:flex;flex-direction:column;align-items:center;gap:7px}.dropzone strong{font-size:13px;font-weight:500;margin-top:7px}.dropzone:hover,.dropzone.dragging{border-color:var(--accent-text);background:var(--accent-soft)}.upload-icon{display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:var(--accent-soft);color:var(--accent-text)}.file-chips{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-top:8px}.file-chips>span{display:inline-flex;align-items:center;gap:5px;background:var(--surface-raised);padding:6px 9px;border-radius:15px;font-size:10px}.paste-button{width:100%;margin-top:11px;display:flex;align-items:center;gap:10px;height:52px;padding:0 14px;border-radius:12px;border:1px solid var(--border);background:var(--surface-raised);font-size:12px;font-weight:500}.paste-button span{flex:1;text-align:left}.paste-button>svg:first-child{color:var(--muted)}.paste-button:hover{border-color:var(--faint)}.back-to-upload{margin:18px 0 23px}.char-count{color:var(--faint);text-align:right;font-size:10px;margin-top:7px;margin-bottom:18px}.difficulty-picker{display:flex;gap:8px}.difficulty-picker button{border:1px solid var(--border);border-radius:20px;padding:8px 17px;text-transform:capitalize;background:transparent;color:var(--muted);font-size:12px}.difficulty-picker button.selected{color:var(--accent-text);background:var(--accent-soft);border-color:#e6394673}.count-field{display:flex;gap:15px;align-items:center;margin-top:21px;font-size:11px;color:var(--muted)}.count-field select{flex:1;height:40px;padding:0 10px;font-size:11px}.prompt-ideas{margin-top:24px;display:flex;flex-direction:column;gap:8px}.prompt-ideas button{background:var(--surface-raised);border:1px solid var(--border);color:var(--muted);border-radius:10px;padding:10px 12px;font-size:10px;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:12px}.prompt-ideas button:hover{color:var(--text)}.material-tip{font-size:11px;line-height:1.7;color:var(--muted);margin-top:19px}.upload-list{margin-top:24px}.upload-item{display:flex;gap:11px;align-items:center;margin-top:17px}.upload-item-body{display:flex;flex-direction:column;gap:7px;flex:1;min-width:0}.upload-item-body>strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:500}.upload-check{color:var(--positive);border-radius:50%;background:#5096641f;width:25px;height:25px;display:grid;place-items:center}.error-notice,.info-notice{border:1px solid rgb(230 57 70 / 20%);background:var(--accent-soft);color:var(--accent-text);border-radius:10px;padding:13px;display:flex;gap:9px;font-size:11px;line-height:1.7;margin-top:15px}.error-notice svg,.info-notice>svg{flex-shrink:0;margin-top:2px}.error-notice .text-button{display:flex;margin-top:8px}.info-notice{color:var(--muted);border-color:var(--border);background:var(--bg)}.info-notice>svg{color:var(--accent-text)}.loading-state{text-align:center;padding:65px 10px;color:var(--accent)}.loading-state p{color:var(--muted);font-size:12px;margin-top:18px}.toast{position:fixed;z-index:20;bottom:28px;left:50%;transform:translate(-50%,15px);opacity:0;pointer-events:none;max-width:calc(100vw - 40px);padding:13px 20px;color:var(--text);background:var(--surface-raised);border:1px solid var(--border);border-radius:12px;box-shadow:0 6px 25px #00000038;font-size:12px;line-height:1.5;transition:.2s;text-align:center}.toast-visible{opacity:1;transform:translate(-50%)}.confirm-sheet .sheet-body>.muted{font-size:13px;line-height:1.8}.source-sheet{width:min(730px,calc(100vw - 40px))}.source-chunk{margin-top:22px;padding-top:18px;border-top:1px solid var(--border)}.source-chunk .eyebrow{display:flex;align-items:center;gap:5px;margin-bottom:10px}.source-download{font-size:12px}.practice-sheet{width:min(740px,calc(100vw - 40px))}.practice-progress{display:flex;justify-content:space-between;font-size:11px;margin:0 0 12px}.question-panel{margin:25px 0;padding:23px;background:var(--bg);border:1px solid var(--border);border-radius:14px}.question-panel>.eyebrow{display:block;font-size:9px;margin-bottom:15px}.question-panel .study-content{font-size:18px;line-height:1.8}.question-source{display:inline-flex;align-items:center;gap:6px;color:var(--faint);font-size:10px;margin-top:20px}.study-content{font-size:13px;line-height:1.8;overflow-wrap:anywhere}.study-content p+p,.study-content ul,.study-content ol{margin-top:12px}.study-content a{color:var(--accent-text);text-decoration:underline}.study-content pre{overflow-x:auto;padding:13px;background:var(--bg);border-radius:8px}.study-content ul,.study-content ol{padding-left:22px}.study-content h1,.study-content h2,.study-content h3{font-size:1.1em;margin:10px 0}.study-content .katex-display{overflow-x:auto;overflow-y:hidden;padding:8px 0}.study-content .katex{font-size:1.1em}.mcq-options{margin:0;padding:0;border:0;display:flex;flex-direction:column;gap:10px}.mcq-option{border:1px solid var(--border);background:var(--surface-raised);border-radius:12px;padding:14px;display:flex;gap:12px;align-items:center;cursor:pointer}.mcq-option input{width:15px;height:15px;accent-color:var(--accent);margin:0;flex-shrink:0}.mcq-option:has(input:focus-visible){outline:2px solid var(--accent-text);outline-offset:2px}.mcq-option.selected{border-color:var(--accent);background:var(--accent-soft)}.option-letter{font:600 13px Chakra Petch,sans-serif;color:var(--muted)}.mcq-option .study-content{flex:1}.mcq-option.correct{border-color:var(--positive);background:#50966417}.mcq-option.correct>svg{color:var(--positive)}.mcq-option.incorrect{border-color:var(--accent)}.mcq-options:disabled .mcq-option{cursor:default}.practice-submit{margin-top:22px}.practice-save-exit{display:flex;margin:18px auto 0;color:var(--muted);font-size:11px}.written-answer .field-label{margin-top:20px}.answer-kind{margin-bottom:17px}.flashcard-answer{border:1px solid rgb(230 57 70 / 25%);background:var(--accent-soft);border-radius:14px;padding:21px}.flashcard-answer>.eyebrow{margin-bottom:13px}.flashcard-answer>.study-content{font-size:17px}.flashcard-answer>.muted{margin-top:17px}.recall-label{margin:23px 0 12px}.recall-buttons{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:12px}.recall-buttons button{background:var(--surface-raised);padding:12px 8px;border:1px solid var(--border);border-radius:10px;text-transform:capitalize;font-size:12px}.recall-buttons button:hover{border-color:var(--accent)}.recall-buttons .recall-good,.recall-buttons .recall-easy{color:var(--positive)}.recall-buttons .recall-again{color:var(--accent-text)}.recall-buttons button:disabled{opacity:.5}.answer-feedback{border:1px solid var(--border);border-radius:13px;padding:19px;margin-top:22px;background:var(--bg)}.answer-feedback.positive{border-color:#50966466}.feedback-heading{display:flex;justify-content:space-between;margin-bottom:11px;font-size:13px}.positive .feedback-heading{color:var(--positive)}.answer-feedback small{display:block;margin-top:12px;font-size:10px}.reference-answer{margin-top:17px;border-top:1px solid var(--border);padding-top:12px}.reference-answer summary{color:var(--muted);font-size:11px}.reference-answer[open]>.study-content{margin-top:14px}.solution-step{display:flex;gap:11px;margin-top:13px}.solution-step>span{color:var(--accent-text);font-size:11px;line-height:1.8}.practice-summary{text-align:center;padding-top:18px}.trophy-wrap{display:grid;place-items:center;width:100px;height:100px;border-radius:50%;color:var(--accent-text);border:1px solid rgb(230 57 70 / 25%);background:var(--accent-soft);margin:0 auto 24px}.practice-summary h3{font-size:29px;margin:9px 0}.practice-summary>p.muted{font-size:12px;line-height:1.8}.summary-stats{display:grid;grid-template-columns:1fr 1fr;background:var(--bg);border:1px solid var(--border);border-radius:13px;padding:21px 0;margin:28px 0}.summary-stats>div+div{border-left:1px solid var(--border)}.summary-stats strong{font:700 30px Chakra Petch,sans-serif;display:block}.summary-stats strong span{color:var(--muted);font-size:17px}.summary-stats small{color:var(--muted);font-size:10px;display:block;margin-top:6px}.practice-summary .button+.button{margin-top:14px}.not-found{text-align:center;padding:20vh 20px}.not-found h1{margin-bottom:25px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.spin{animation:spin 4s linear infinite}@keyframes logo-breathe{0%,to{opacity:.65;transform:scale(.94)}50%{opacity:1;transform:scale(1)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-100% 0}}@keyframes appear{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media(min-width:1100px){.home-shell{padding-top:39px}.home-heading{margin-top:53px}.empty-home{padding-top:30px}.empty-home h2{font-size:36px}}@media(max-width:850px){.app-shell{padding:24px}.drill-columns{gap:14px}.panel{padding:21px}.drill-title-row h1{font-size:29px}.drill-heading-right{gap:8px}.drill-heading .page-subtitle{margin-left:0}.mode-card{padding:15px 12px}.mode-card h3{font-size:15px}}@media(max-width:700px){.drill-columns{grid-template-columns:1fr}.panel{padding:23px}.mode-card{min-height:162px;padding:20px}.mode-card h3{font-size:17px}.mode-card p{min-height:0}.mode-count{margin-top:18px}.drill-heading{gap:12px}.drill-heading-right{position:relative}.drill-heading-right .action-menu{position:absolute;right:-7px;top:-22px}.progress-ring{width:91px;height:91px}.progress-ring strong{font-size:24px}.drill-title-row{gap:12px}.large-subject{width:48px;height:48px;font-size:25px;border-radius:14px}.stats-row>div{gap:7px}.stats-row strong{font-size:22px}.stats-row span{font-size:10px}.stats-row svg{width:15px}}@media(max-width:540px){.app-shell{padding:max(21px,env(safe-area-inset-top)) 20px 23px}.brand{font-size:17px}.brand-sub{font-size:8px;letter-spacing:1.5px}.brand>span{gap:8px}.avatar{width:40px;height:40px;font-size:14px}.page-heading{margin:34px 0 25px}.page-heading h1{font-size:32px}.page-heading .eyebrow{font-size:9px}.heading-brush{width:182px;height:24px;top:29px}.page-subtitle{font-size:12px;margin-top:10px}.empty-home{padding:22px 0 69px}.mascot-wrap{margin-bottom:20px;width:174px;height:174px}.mascot-wrap img{width:174px;height:174px}.empty-home h2{font-size:28px}.empty-home>p{font-size:12px;line-height:1.9;margin:15px 0 24px}.empty-chip{font-size:8px!important}.empty-home .button{height:53px;font-size:12px;padding:0 19px}.mobile-break{display:initial}.fab{bottom:max(23px,env(safe-area-inset-bottom));right:20px;width:58px;height:58px;border-radius:18px;padding:0;justify-content:center}.fab-label{display:none}.drill-card{padding:17px 17px 14px}.drill-card-title h2{font-size:18px}.drill-card-title p{font-size:11px}.drill-card-top{gap:11px}.subject-icon{width:44px;height:44px;font-size:22px;border-radius:12px}.card-arrow{width:17px}.drill-list{gap:12px}.drill-card-bottom{font-size:10px}.app-footer{font-size:9px}.drill-heading{margin:34px 0 22px}.drill-heading-content .eyebrow{font-size:8px}.drill-title-row{gap:9px}.drill-title-row h1{font-size:25px}.large-subject{width:43px;height:43px;font-size:22px}.drill-heading .page-subtitle{font-size:10px;margin-top:11px;gap:6px}.drill-heading .page-subtitle .separator,.drill-heading .page-subtitle .separator+*{display:none}.progress-ring{width:82px;height:82px}.progress-ring strong{font-size:23px}.progress-ring small{font-size:8px}.drill-heading-right .action-menu{top:-26px}.stats-row{padding:16px 0;margin-bottom:23px}.stats-row>div{display:grid;grid-template-columns:auto auto;justify-content:center;gap:3px 6px}.stats-row span{grid-column:1 / -1;text-align:center;margin-top:2px}.stats-row svg{width:15px;align-self:center}.stats-row strong{font-size:23px}.drill-columns{gap:18px}.panel{padding:20px;border-radius:16px}.section-heading{margin-bottom:19px}.section-heading h2{font-size:22px}.section-heading p{font-size:10px}.section-number{font-size:21px}.empty-materials{padding:17px 0 23px}.empty-materials h3{font-size:15px}.mode-card{padding:16px 14px}.mode-card h3{font-size:16px}.mode-card p{min-height:28px}.mode-count{font-size:10px}.add-actions .button{font-size:11px;height:47px}.materials-list{margin-bottom:15px}.sheet{width:100%;max-width:100%;max-height:calc(100dvh - 15px);margin:auto 0 0;border-radius:24px 24px 0 0;border-bottom:0}.sheet-handle{display:block;margin:10px auto 0;width:36px;height:4px;border-radius:3px;background:var(--border)}.sheet-heading{padding:18px 20px;top:0}.sheet-heading h2{font-size:24px}.sheet-heading p{font-size:11px;margin-top:7px}.sheet-body{padding:0 20px max(28px,env(safe-area-inset-bottom))}.icon-picker{grid-template-columns:repeat(4,1fr);gap:9px}.icon-picker button{height:49px}.modal-submit{margin-top:25px}.sheet input:not([type=radio]):not([type=checkbox]):not([type=file]),.sheet textarea,.sheet select{font-size:16px}.sheet textarea{font-size:13px}.count-field select,.generation-options select{font-size:12px}.count-field{font-size:10px;gap:8px}.question-panel{padding:20px}.question-panel .study-content{font-size:16px}.practice-summary h3{font-size:26px}.practice-progress{font-size:10px}.summary-stats small{font-size:9px}.practice-sheet{max-height:calc(100dvh - 15px)}.toast{width:max-content;bottom:94px;font-size:11px}.source-sheet .sheet-heading h2{font-size:21px}.back-link{font-size:12px}}@media(max-width:360px){.app-shell{padding-right:15px;padding-left:15px}.drill-title-row h1{font-size:22px}.large-subject{display:none}.mode-card h3{font-size:15px}.panel{padding:17px}.button{font-size:12px;padding:0 15px}.file-chips{gap:4px}.file-chips>span{padding:6px 7px}.recall-buttons{gap:5px}.recall-buttons button{font-size:11px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}.guide-sheet{width:min(1180px,calc(100vw - 40px))}.guide-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:3px 0 20px}.guide-tabs{display:flex;padding:4px;background:var(--bg);border:1px solid var(--border);border-radius:12px}.guide-tabs button{display:flex;gap:8px;align-items:center;padding:10px 13px;border:0;border-radius:8px;background:transparent;color:var(--muted);font-size:12px}.guide-tabs button[aria-pressed=true]{background:var(--accent-soft);color:var(--accent-text)}.guide-search{display:flex;align-items:center;gap:9px;flex:1;min-width:200px;color:var(--muted);padding:0 12px;border:1px solid var(--border);border-radius:10px;background:var(--bg)}.guide-sheet .guide-search input:not([type=radio]):not([type=checkbox]):not([type=file]){width:100%;padding:12px 0;color:var(--text);background:transparent;border:0;font-size:12px}.guide-search:focus-within{outline:2px solid var(--accent-text);outline-offset:2px}.guide-sheet .guide-search input:focus-visible{outline:0}.guide-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:25px;align-items:start}.guide-topic-list{border:1px solid var(--border);border-radius:13px;padding:16px 12px;background:var(--bg)}.guide-read-count{font-size:11px;color:var(--muted);margin:6px 0 16px}.guide-topic-list nav{display:grid;gap:5px}.guide-topic-list button{display:flex;align-items:flex-start;gap:9px;border:1px solid transparent;border-radius:9px;background:transparent;padding:10px 8px;text-align:left;font-size:12px;line-height:1.6}.guide-topic-list button>span{color:var(--muted);min-width:18px;font-size:10px;padding-top:2px}.guide-topic-list button[aria-current=true]{color:var(--accent-text);background:var(--accent-soft);border-color:var(--border)}.guide-topic-list button:hover{background:var(--surface-raised)}.guide-topic-content{min-width:0}.guide-topic-heading{display:flex;align-items:flex-start;gap:15px;justify-content:space-between}.guide-topic-heading h3{font-size:25px;line-height:1.3;margin-top:7px}.guide-read-button{display:flex;align-items:center;gap:5px;flex-shrink:0;padding:9px;border:1px solid var(--border);border-radius:9px;background:var(--bg);font-size:11px}.guide-read-button[aria-pressed=true]{color:var(--positive)}.guide-summary{color:var(--muted);margin:13px 0 25px}.guide-section{margin:24px 0}.guide-section h4{font-size:13px;color:var(--accent-text);margin:0 0 11px}.guide-example,.guide-pitfalls{padding:18px;border:1px solid var(--border);border-radius:12px;background:var(--bg)}.guide-pitfalls{border-left:3px solid var(--accent)}.topic-equation{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:14px;margin-bottom:10px}.topic-equation>strong{font-size:12px}.guide-section .text-button{font-size:12px}.study-diagram{margin:22px 0;border:1px solid var(--border);border-radius:13px;padding:15px;background:var(--bg)}.study-diagram h4{font-size:13px;margin:0 0 10px}.study-diagram>svg{display:block;width:100%;height:auto}.study-diagram figcaption{font-size:11px;line-height:1.7;color:var(--muted);border-top:1px solid var(--border);padding-top:11px}.guide-sources{font-size:11px;color:var(--muted);margin-top:15px}.guide-sources summary{cursor:pointer}.guide-sources ul{padding-left:18px;line-height:1.8}.guide-next{display:flex;justify-content:space-between;margin-top:25px;gap:15px;font-size:12px}.guide-intro{font-size:12px;color:var(--muted);line-height:1.7;margin-bottom:18px}.guide-empty{padding:30px 12px;text-align:center;font-size:13px;color:var(--muted);line-height:1.8}.guide-empty>svg{color:var(--accent-text);margin-bottom:15px}.guide-empty h3{color:var(--text);margin-bottom:12px}.formula-table-scroll{overflow-x:auto;border:1px solid var(--border);border-radius:12px}.formula-table{width:100%;table-layout:fixed;border-collapse:collapse;font-size:12px;text-align:left}.formula-name-column{width:32%}.formula-toggle-column{width:74px}.formula-table caption{text-align:left;font-size:12px;padding:14px;color:var(--muted);background:var(--bg)}.formula-table th,.formula-table td{padding:17px 15px;vertical-align:top;border-top:1px solid var(--border);overflow-wrap:anywhere}.formula-table thead th{color:var(--accent-text);font-size:11px;background:var(--bg)}.formula-table tbody th{font-weight:400}.formula-summary-row>th,.formula-summary-row>td{vertical-align:middle}.formula-summary-row[data-expanded=true]{background:var(--surface-raised)}.formula-table .formula-toggle-cell{text-align:center;padding-left:8px;padding-right:8px}.formula-toggle{display:inline-grid;place-items:center;width:44px;height:44px;padding:0;border:1px solid var(--border);border-radius:10px;background:var(--bg);color:var(--muted)}.formula-toggle:hover,.formula-toggle[aria-expanded=true]{color:var(--accent-text);background:var(--accent-soft)}.formula-toggle svg{transition:transform .18s}.formula-toggle[aria-expanded=true] svg{transform:rotate(180deg)}.formula-detail-row>td{background:var(--bg)}.formula-details{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 30px}.formula-detail-section{min-width:0}.formula-detail-section h4{margin:0 0 9px;color:var(--accent-text);font-size:11px}.formula-variable-section,.formula-detail-sources{grid-column:1 / -1}.formula-detail-sources:has(.guide-sources){border-top:1px solid var(--border)}.formula-detail-sources:empty{display:none}.formula-table th small{display:block;color:var(--muted);font-size:10px;line-height:1.6;margin-top:8px}.formula-table .katex-display{margin:0 0 12px}.formula-table .study-content{font-size:12px}.formula-unit{color:var(--positive);font-size:11px}.formula-variables{margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 30px}.formula-variables>div{min-width:0;border-top:1px solid var(--border);padding-top:10px}.formula-variables dt{display:flex;justify-content:space-between;align-items:baseline;gap:10px}.formula-variables dt>span{color:var(--positive);font-size:11px}.formula-variables dd{margin:5px 0 0;color:var(--muted);line-height:1.6;font-size:11px}@media(max-width:700px){.formula-details,.guide-layout{grid-template-columns:minmax(0,1fr);gap:20px}.guide-topic-list nav{max-height:180px;overflow-y:auto}.guide-topic-heading{flex-wrap:wrap}.guide-topic-heading h3{font-size:23px}}@media(max-width:480px){.formula-name-column{width:36%}.formula-toggle-column{width:60px}.formula-table th,.formula-table td{padding:14px 10px}.formula-table thead th{font-size:10px}.formula-variables{grid-template-columns:minmax(0,1fr)}.guide-sheet{width:100%}.guide-toolbar{gap:10px}.guide-search{flex-basis:100%}.guide-tabs{width:100%}.guide-tabs button{flex:1;justify-content:center;padding:10px}.study-diagram{padding:10px}.guide-sheet .sheet-body{padding-left:16px;padding-right:16px}}.generation-settings,.source-choice,.material-selection,.content-choices{min-width:0;padding:0;margin:0;border:0}.generation-settings{display:grid;gap:22px;padding-bottom:22px}.generation-settings legend,.content-choices legend{font-size:12px;font-weight:600;margin-bottom:11px}.source-options{display:flex;flex-wrap:wrap;gap:12px}.source-options label,.content-checkboxes label{display:flex;align-items:center;gap:8px;font-size:11px;line-height:1.6}.generation-settings input[type=radio],.generation-settings input[type=checkbox],.content-choices input{accent-color:var(--accent);margin:0;width:15px;height:15px;flex-shrink:0}.generation-settings:disabled{opacity:.7}.material-selection>label{display:flex;gap:10px;align-items:center;padding:11px;background:var(--bg);border:1px solid var(--border);border-radius:9px;margin-bottom:7px;font-size:12px;overflow-wrap:anywhere}.material-selection small{display:block;color:var(--muted);font-size:10px;margin-top:4px}.material-selection label:has(input:disabled){opacity:.5}.material-selection label:has(input:checked),.content-checkboxes label:has(input:checked){border-color:#e6394659;background:var(--accent-soft)}.selection-links{display:flex;gap:15px;margin-bottom:10px}.selection-links button{border:0;padding:0;background:transparent;color:var(--accent-text);font-size:10px}.content-checkboxes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.content-checkboxes label{border:1px solid var(--border);border-radius:9px;padding:10px;background:var(--bg)}.selection-hint{display:block;font-size:10px;line-height:1.7;color:var(--muted);margin-top:9px}.generation-prompt,.generation-action{display:grid;gap:9px;font-size:12px;font-weight:500}.generation-prompt textarea,.generation-action select{width:100%;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:9px;padding:11px;font-size:12px;resize:vertical}.generation-action .selection-hint,.generation-prompt .selection-hint{font-weight:400;margin-top:0}.generation-settings .generation-options{margin:0}.material-sheet .content-choices{margin-top:24px}.manage-content-button{justify-content:flex-start;margin:0 0 17px}.manage-content-button>span{margin-left:auto;font-size:10px;font-weight:400;color:var(--muted)}.manage-sheet{width:min(900px,calc(100vw - 40px))}.content-list-toolbar{display:flex;gap:13px;align-items:flex-end;flex-wrap:wrap}.content-list-toolbar>label:first-child{font-size:11px;display:grid;gap:8px;min-width:180px}.content-list-toolbar select{width:100%}.manage-sheet .guide-search input:not([type=radio]):not([type=checkbox]):not([type=file]){border:0;background:transparent;padding:12px 0;font-size:12px;width:100%}.manage-sheet .guide-search input:focus-visible{outline:0}.content-list-count{margin:17px 0 12px;font-size:11px;color:var(--muted)}.generated-content-list{padding:0;margin:0;list-style:none;display:grid;gap:10px}.generated-content-list>li{display:flex;align-items:flex-start;border:1px solid var(--border);background:var(--bg);border-radius:12px;padding:15px;gap:12px}.generated-content-list details{flex:1;min-width:0}.generated-content-list summary{cursor:pointer}.generated-content-list summary .study-content{display:inline}.generated-content-list summary .study-content>p{display:inline}.content-type-label{display:block;font-size:9px;color:var(--accent-text);margin-bottom:8px;letter-spacing:.6px}.managed-details{padding-top:15px;margin-top:15px;border-top:1px solid var(--border)}.managed-details h4{font-size:11px;color:var(--muted);margin:17px 0 8px}.managed-details ul,.managed-details ol{padding-left:22px;font-size:12px}.managed-details .formula-variables{margin-top:17px}.content-pagination{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-top:20px}.content-pagination span{font-size:11px;color:var(--muted)}.content-pagination .button{font-size:11px}.content-removal{position:sticky;bottom:0;padding:20px;margin-top:20px;background:var(--surface-raised);border:1px solid var(--accent);border-radius:12px;box-shadow:0 5px 20px #0000004d}.content-removal h3{font-size:18px;margin-bottom:12px}.content-removal>p{font-size:11px;color:var(--muted);margin:12px 0 17px;line-height:1.7}@media(max-width:480px){.manage-sheet{width:100%}.content-list-toolbar>label:first-child{width:100%}.manage-content-button>span{font-size:9px}.content-checkboxes label{padding:9px;font-size:10px}}.generation-plan{margin:0 0 16px;padding:16px;border:1px solid var(--border);border-radius:12px;background:var(--bg);font-size:.8rem}.generation-plan h3{margin:0 0 8px;font-size:.92rem}.generation-plan>p{color:var(--muted);margin:0 0 12px}.generation-plan ol{margin:0 0 12px;padding-left:20px;display:grid;gap:8px;line-height:1.55}.generation-plan .selection-hint{margin:0}.generation-batch-progress{width:100%;text-align:left;font-size:.8rem}.generation-batch-progress progress{width:100%;height:8px;accent-color:var(--accent)}.generation-batch-progress ul{padding-left:18px;line-height:1.6;color:var(--muted)}.generation-stop{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:22px}.generation-stop .button{color:var(--accent-text)}.generation-stop .selection-hint{max-width:320px;margin:0}.generation-stop .error-notice{text-align:left}.diagram-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:10px}.diagram-heading h4{margin:0}.diagram-heading .text-button{white-space:nowrap;display:inline-flex;align-items:center;gap:5px;font-size:11px;flex-shrink:0}.note-revise-button{display:inline-flex;align-items:center;gap:6px;margin:12px 0}.note-revision-panel{border:1px solid var(--border);border-radius:12px;background:var(--bg);padding:16px;margin:14px 0 22px}.note-revision-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.note-revision-heading h4{display:flex;align-items:center;gap:7px}.note-revision-panel>label{display:flex;flex-direction:column;gap:7px;font-size:12px;margin:14px 0}.note-revision-panel select,.note-revision-panel textarea{width:100%}.note-revision-panel .selection-hint{margin:9px 0}.note-revision-actions{display:flex;flex-wrap:wrap;gap:9px;margin:14px 0}.note-revision-actions .button{font-size:12px;height:39px}.note-revision-preview>details{border:1px solid var(--border);border-radius:8px;padding:12px}.note-revision-preview summary{cursor:pointer;font-size:12px;color:var(--muted)}.note-proposed{border-top:1px solid var(--border);margin-top:16px;padding-top:16px}.note-revision-preview h5{font-size:13px;margin-bottom:8px}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,d09GMgABAAAAAA4oAA4AAAAAHbQAAA3TAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAABmAAgRQIDgmcDBEICo1oijYBNgIkA14LMgAEIAWJAAeBHAyBHBvbGiMRdnO0IkRRkiYDgr9KsJ1NUAf2kILNxgUmgqIgq1P89vcbIcmsQbRps3vCcXdYOKSWEPEKgZgQkprQQsxIXUgq0DqpGKmIvrgkeVGtEQD9DzAO29fM9jYhxZEsL2FeURH2JN4MIcTdO049NCVdxQ/w9NrSYFEBKTDKpLKfNkCGDc1RwjZLQcm3vqJ2UW9Xfa3tgAHz6ivp6vgC2yD4/6352ndnN0X0TL7seypkjZlMsjmZnf0Mm5Q+JykRWQBKCVCVPbARPXWyQtb5VgLB6Biq7/Uixcj2WGqdI8tGSgkuRG+t910GKP2D7AQH0DB9FMDW/obJZ8giFI3Wg8Cvevz0M+5m0rTh7XDBlvo9Y4vm13EXmfttwI4mBo1EG15fxJhUiCLbiiyCf/ZA6MFAhg3pGIZGdGIVjtPn6UcMk9A/UUr9PhoNsCENw1APAq0gpH73e+M+0ueyHbabc3vkbcdtzcf/fiy+NxQEjf9ud/ELBHAXJ0nk4z+MXH2Ev/kWyV4k7SkvpPc9Qr38F6RPWnM9cN6DJ0AdD1BhtgABtmoRoFCvPsBAumNm6soZG2Gk5GyVTo2sJncSyp0jQTYoR6WDvTwaaEcHsxHfvuWhHA3a6bN7twRKtcGok6NsCi7jYRrM2jExsUFMxMQYuJbMhuWNOumEJy9hi29Dmg5zMp/A5+hhPG19j1vBrq8JTLr8ki5VLPmG/PynJHVul440bxg5xuymHUFPBshC+nA9I1FmwbRBTNHAcik3Oae0cxKoI3MOriM42UrPe51nsaGxJ+WfXubAsP84aabUlQSJ1IiE0iPETLUU4CATgfXSCSpuRFRmCGbO+wSpAnzaeaCYW1VNEysRtuXCEL1kUFUbbtMv3Tilt/1c11jt3Q5bbMa84cpWipp8Elw3MZhOHsOlwwVUQM3lAR35JiFQbaYCRnMF2lxAWoOg2gyoIV4PouX8HytNIfLhqpJtXB4vjiViUI8IJ7bkC4ikkQvKksnOTKICwnqWSZ9YS5f0WCxmpgjbIq7EJcM4aI2nmhLNY2JIUgOjXZFWBHb+x5oh6cwb0Tv1ackHdKi0I9OO2wE9aogIOn540CCCziyhN+IaejtgAONKznHlHyutPrHGwCx9S6B8kfS4Mfi4Eyv7OU730bT1SCBjt834cXsf43zVjPUqqJjgrjeGnBxSG4aYAKFuVbeCfkDIjAqMb6yLNIbCuvXhMH2/+k2vkNpkORhR59N1CkzoOENvneIosjYmuTxlhUzaGEJQ/iWqx4dmwpmKjrwTiTGTCVozNAYqk/zXOndWxuWSmJkQpJw3pK5KX6QrLt5LATMqpmPAQhkhK6PUjzHUn7E0gHE0kPE0iKkolgkUx9SZmVAdDgpffdyJKg3k7VmzYGCwVXGz/tXmkOIp+vcWs+EMuhhvN0h9uhfzWJziBQmCREGSIFmQIkgVpAnSBRmC//6hkLZwaVhwxlrJSOdqlFtOYxlau9F2QN5Y98xmIAsiM1HVp2VFX+DHHGg6Ecjh3vmqtidX3qHI2qycTk/iwxSt5UzTmEP92ZBnEWTk4Mx8Mpl78ZDokxg/KWb+Q0QkvdKVmq3TMW+RXEgrsziSAfNXFMhDc60N5N9jQzjfO0kBKpUZl0ZmwJ41j/B9Hz6wmRaJB84niNmQrzp9eSlQCDDzazGDdVi3P36VZQ+Jy4f9UBNp+3zTjqI4abaFAm+GShVaXlsGdF3FYzZcDI6cori4kMxUECl9IjJZpzkvitAoxKue+90pDMvcKRxLl53TmOKCmV/xRolNKSqqUxc6LStOETmFOiLZZptlZepcKiAzteG8PEdpnQpbOMNcMsR4RR2Bs0cKFEvSmIjAFcnarqwUL4lDhHmnVkwu1IwshbiCcgvOheZuYyOteufZZwlcTlLgnZ3o/WcYdzZHW/WGaqaVfmTZ1aWCceJjkbZqsfbkOtcFlUZM/jy+hXHDbaUobWqqXaeWobbLO99yG5N3U4wxco0rQGGcOLASFMXeJoham8M+/x6O2WywK2l4HGbq1CoUyC/IZikQhdq3SiuNrvAEj0AVu9x2x3lp/xWzahaxidezFVtdcb5uEnzyl0ZmYiuKI0exvCd4Xc9CV1KB0db00z92wDPde0kukbvZIWN6jUWFTmPIC/Y4UPCm8UfDTFZpZNon1qLFTkBhxzB+FjQRA2Q/YRJT8pQigslMaUpFyAG8TMlXigiqmAZX4xgijKjRlGpLE0GdplRfCaJo0JQaSxNBk6ZmMzcya0FmrcisDdn0Q3HI2sWSppYigmlM1XT/kLQZSNpMJG0WkjYbSZuDpM1F0uYhFc1HxU4m1QJjDK6iL0S5uSj5rgXc3RejEigtcRBtqYPQsiTskmO5vosV+q4VGIKbOkDg0jtRrq+Em1YloaTFar3EGr1EUC8R0kus1Uus00usL97ABr2BjXoDm/QGNhuWtMVBKOwg/i78lT7hBsAvDmwHc/ao3vmUbBmhjeYySZNWvGkfZAgISDSaDo1SVpzGDsAEkF8B+gEapViUoZgUWXcRIGFZNm6gWbAKk0bp0k1MHG9fLYtV4iS2SmLEQFARzRcnf9PUS0LVn05/J9MiRRBU3v2IrvW974v4N00L7ZMk0wXP1409CHo/an8zTRHD3eSJ6m8D4YMkZNl3M79sqeuAsr/m3f+8/yl7A50aiAEJgeBeMWzu7ui9UfUBCe2TIqZIoOd/3/udRBOQidQZUERzb2/VwZN1H/Sju82ew2H2Wfr6qvfVf3hqwDvAIpkQVFy4B9Pe9e4/XvPeceu7h3dvO56iJPf0+A6cqA2ip18ER+iFgggiuOkvj24bby0N9j2UHIkgqIt+sVgfodC4YghLSMjSZbH0VR/6dMDrYJeKHilKTemt6v6kvzvn3/RrdWtr0GoN/xL+Sex/cPYLUpepx9cz/D46UPU5KXgAQa+NDps1v6J3xP1i2HtaDB0M9aX2deA7SYff//+gUCovMmIK/qfsFcOk+4Y5ZN97XlG6zebqtMbKgeRFi51vnxTQYBUik2rS/Cn6PC8ADR8FGxsRPB82dzfND90gIcshOcYUkfjherBz53odpm6TP8txlwOZ71xmfHHOvq053qFF/MRlS3jP0ELudrf2OeN8DHvp6ZceLe8qKYvWz/7yp0u4dKPfli3CYq0O13Ih71mylJ80tOi10On8wi+F4+LWgDPeJ30msSQt9/vkmHq9/Lvo2b461mP801v3W4xTcs6CbvF9UDdrSt+A8OUbpSh55qAUFXWznBBfdeJ8a4d7ugT5tvxUza3h9m4H7ptTqiG4z0g5dc0X29OcGlhpGFMpQo9ytTS+NViZpNdvU4kWx+LKxNY10kQ1yqGXrhe4/1nvP7E+nd5A92TtaRplbHSqoIdOqtRWti+fkB5/n1+/VvCmz12pG1kpQWsfi1ftlBobm0bpngs16CHkbIwdLnParxtTV3QYRlfJ0KFskH7pdN/YDn+yRuSd7sNH3aO0DYPggk6uWuXrfOc+fa3VTxFVvKaNxHsiHmsXyCLIE5yuOeN3/Jdf8HBL/5M6shjyhxHx9BjB1O0+4NLOnjLLSxwO7ukN4jMbOIcD879KLSi6Pk61Oqm2377n8079PXEEQ7cy7OKEC9nbpet118fxweTafpt69x/Bt8UqGzNQt7aelpc44dn5cqhwf71+qKp/Zf/+a0zcizOUWpl/iBcSXip0pplkatCchoH5c5aUM8I7/dWxAej8WicPL1URFZ9BDJelUwEwTkGqUhgSlydVes95YdXvhh9Gfz/aeFWvgVb4tuLbcv4+wLdutVZv/cUonwBD/6eDlE0aSiKK/uoH3+J1wDE/jMVqY2ysGufN84oIXB0sPzy8ollX/LegY74DgJXJR57sn+VGza0x3DnuIgABFM15LmajjjsNlYj+JEZGbuRYcAMOWxFkPN2w6Wd46xo4gVWQR/X4lyI/R6K/YK0110GzudPRW7Y+UOBGTfNNzHeYT0fiH0taunBpq9HEW8OKSaBGj21L0MqenEmNRWBAWDWAk4CpNoEZJ2tTaPFgbQYj8HxtFilErs3BTRwT8uO1NXQaWfIotchmPkAF5mMBAliEmZiOGVgCG9LgRzpscMAOOwowlT3JhusdazXGSC/hxR3UlmWVwWHpOIKheqONvjyhSiTHIkVUco5bnji8m//zL7PKaT1Vl5I6UE609f+gkr6MZKVyKc7zJRmCahLsdlyA5fdQkRSan9LgnnLEyGSkaKJCJog0wAgvepWBt80+1yKln1bMVtCljfNWDueKLsWwaEbBSfSPTEmVRsUcYYMnEjcjeyCZzBXK9E9BYBXLKjOSpUDR+nEV3TFSUdQaz+ot98QxgXwx0GQ+EEUAKB2qZPkQQ0GqFD8UPFMqyaCHM24BZmSGic9EYMagKizOw9Hz50DMrDLrqqLkTAhplMictiCAx5S3BIUQdeJeLnBy2CNtMfz6cV4u8XKoFZQesbf9YZiIERiHjaNodDW6LgcirX/mPnJIkBGDUpTBhSa0EIr38D5hCIszhCM8URGBqImoWjpvpt1ebu/v3Gl3qJfMnNM+9V+kiRFyROTPHQWOcs1dNW94/ukKMPZBvDi55i5CttdeJz84DLngLqjcdwEZ87bFFR8CIG35OAkDVN6VRDZ7aq67NteYqZ2lpT8oYB2CytoBd6VuAx4WgiAsnuj3WohG+LugzXiQRDeM3XYXlULv4dp5VFYC) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}
