*{box-sizing:border-box;margin:0;padding:0}:root{--white:#fff;--black:#1a1a1a;--gold:#f5c842;--complete:#27864f;--light-gray:#f8f8f8;--muted:#666;--subtle-border:#eee;--heatmap-empty:#eee;--project-card-height:200px}:root[data-theme=dark]{--white:#111416;--black:#f1efe8;--gold:#f5c842;--complete:#55c982;--light-gray:#202527;--muted:#a7adaf;--subtle-border:#343a3d;--heatmap-empty:#292f32}body{color:var(--black);background:var(--white);font-family:IBM Plex Mono,monospace;line-height:1.6}button,input,select,textarea{color:var(--black)}.main-utility-row{justify-content:flex-end;align-items:center;gap:8px;min-height:28px;display:flex}.connection-status{color:#666;white-space:nowrap;border:1px solid #aaa;align-items:center;gap:5px;padding:4px 8px;font-size:.72rem;line-height:1.2;display:inline-flex}.connection-status-dot{background:#999;border-radius:50%;width:7px;height:7px}.connection-status.online .connection-status-dot{background:#2f8f4e}.connection-status.offline{color:#b00020;border-color:#b00020}.connection-status.offline .connection-status-dot{background:#b00020}.btn-reveal:disabled,.grade-btn:disabled{opacity:.45;cursor:not-allowed}.theme-toggle,.study-settings-btn{border:1px solid var(--black);background:var(--white);color:var(--black);padding:4px 9px;font-family:IBM Plex Mono,monospace;font-size:.72rem;line-height:1.2}.theme-toggle{place-items:center;width:32px;height:32px;padding:0;display:inline-grid}.theme-toggle svg{width:18px;height:18px}.theme-toggle:hover,.study-settings-btn:hover,.study-settings-btn[aria-expanded=true]{background:var(--light-gray)}button,[role=button],.btn-github-login,.btn-logout,.btn-primary,.btn-cancel,.btn-reveal,.add-repo-btn,.grade-btn,.modal-close,.card-delete-btn,.card-reset-btn,.card-review-btn,.collapsible-header,.breadcrumb-clickable,.breadcrumb-segment[onclick],a[href]{cursor:pointer}.container{max-width:100%;margin:0;padding:0}.layout{align-items:flex-start;gap:120px;padding:20px 40px 20px 25px;display:flex}.auth-header{flex-direction:column;align-items:flex-start;gap:10px;margin-top:20px;margin-bottom:20px;display:flex}.btn-github-login{background:var(--black);color:var(--white);cursor:pointer;border:none;width:auto;padding:10px 20px;font-family:IBM Plex Mono,monospace;font-size:14px;line-height:1;transition:opacity .2s}.btn-github-login:hover{opacity:.8}.user-info{background:var(--white);border:1px solid var(--black);box-sizing:border-box;flex-direction:column;gap:12px;width:auto;min-width:280px;padding:8px 12px;display:flex}.user-info-row{align-items:center;gap:0;width:100%;display:flex}.user-info-row:first-child{justify-content:space-between}.user-info-row:last-child{flex:1}.account-controls{gap:16px}.account-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.user-info .account-status{color:var(--muted);margin:0;font-size:12px}.user-info .btn-github-login{height:28px;padding:5px 10px;font-size:12px}@media (width<=480px){.user-info{width:100%;min-width:0}.account-controls{flex-wrap:wrap;gap:8px}.account-actions{flex-wrap:wrap}}.user-info span{white-space:nowrap;text-overflow:ellipsis;font-family:IBM Plex Mono,monospace;font-size:14px;overflow:hidden}.repo-input-inline{flex:1;min-width:0;display:flex;position:relative}.repo-input-field{border:1px solid var(--black);background:var(--white);border-right:none;flex:1;min-width:0;height:28px;padding:5px 8px;font-family:IBM Plex Mono,monospace;font-size:12px;line-height:1}.repo-input-field::placeholder{font-size:12px}.repo-input-field:focus{background:var(--light-gray);outline:none}.btn-logout{background:var(--white);color:var(--black);border:1px solid var(--black);cursor:pointer;height:28px;padding:5px 10px;font-family:IBM Plex Mono,monospace;font-size:12px;line-height:1}.btn-logout:hover{background:var(--black);color:var(--white)}.user-info :is(.btn-logout,.connection-status,.study-settings-btn){box-sizing:border-box;justify-content:center;align-items:center;height:28px;padding:5px 10px;font-size:12px;line-height:1;display:inline-flex}.user-info .connection-status-label{font-size:inherit;line-height:inherit}.hidden{display:none!important}.localStorage-warning{border-left:3px solid var(--gold);color:var(--black);background:#f5c84226;margin-bottom:20px;padding:12px 15px;font-family:IBM Plex Mono,monospace;font-size:12px;line-height:1.6}.localStorage-warning.hidden{display:none}.sidebar-content{margin-top:30px;font-size:14px;line-height:1.7}.sidebar-content h3{margin-top:25px;margin-bottom:12px;font-size:16px;font-weight:700}.collapsible-header{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;display:flex}.collapsible-header .toggle-icon{border-style:solid;border-width:4px 0 4px 7px;border-color:transparent transparent transparent var(--gold);cursor:pointer;width:0;height:0;margin-right:8px;transition:transform .2s,border-color .15s;display:inline-block}.collapsible-header:hover .toggle-icon{border-color:#0000 #0000 #0000 #f8d96b}.collapsible-header[data-section] .toggle-icon{transform-origin:50%}.collapsible-content{margin-left:20px;overflow:hidden}.collapsible-content.hidden{display:none}.sidebar-content p{margin-bottom:15px}.sidebar-content ul{margin:0 0 15px;padding-left:20px}.sidebar-content ol{margin:0 0 15px;padding-left:30px}.sidebar-content li{margin-bottom:8px}.sidebar-content .tip{border-left:3px solid var(--gold);background:#f5c8421a;margin-top:20px;padding:12px;font-size:13px}.sidebar{background:0 0;flex-shrink:0;width:320px;padding:0;position:relative}.mobile-sidebar-open,.mobile-sidebar-close{display:none}.yellow-header{background:var(--gold);width:100%;margin-bottom:0;padding:25px 0}.breadcrumb-path{color:var(--black);align-items:center;gap:2px;margin-top:8px;margin-bottom:8px;font-family:IBM Plex Mono,monospace;font-size:11px;display:flex}.breadcrumb-segment{background:var(--white);color:var(--black);border-radius:3px;align-items:center;padding:2px 4px;transition:background .15s;display:inline-flex}.breadcrumb-segment:hover{background:#e8e8e8}.breadcrumb-clickable{cursor:pointer;color:#6c6c6c;text-decoration:none}.breadcrumb-separator{color:var(--black);-webkit-user-select:none;user-select:none;padding:0 2px}.breadcrumb-path a,.breadcrumb-path a:visited,.breadcrumb-path a:hover,.breadcrumb-path a:active{color:var(--black);background:var(--white);border-radius:3px;padding:2px 4px;text-decoration:underline}.breadcrumb-path a:hover{background:#e8e8e8}.deck-breadcrumb{color:var(--black);flex-wrap:wrap;align-items:center;gap:2px;max-width:640px;margin-bottom:12px;font-family:IBM Plex Mono,monospace;font-size:11px;display:flex}.deck-breadcrumb.hidden{display:none}.deck-breadcrumb .breadcrumb-segment{background:var(--white);color:var(--black);border-radius:3px;align-items:center;padding:2px 4px;transition:background .15s;display:inline-flex}.deck-breadcrumb .breadcrumb-segment.breadcrumb-clickable{cursor:pointer;text-decoration:underline}.deck-breadcrumb .breadcrumb-segment.breadcrumb-clickable:hover{background:#e8e8e8}.deck-breadcrumb .breadcrumb-segment.current{cursor:default;font-weight:500}.deck-breadcrumb .breadcrumb-segment.current:hover{background:var(--white)}.deck-breadcrumb .breadcrumb-separator{color:var(--black);-webkit-user-select:none;user-select:none;padding:0 2px}.header-row{justify-content:space-between;align-items:baseline;margin-bottom:8px;display:flex}.social-icons{align-items:center;gap:10px;display:flex}.social-icons a{color:var(--black);opacity:.15;cursor:pointer;align-items:center;transition:opacity .3s;display:flex}.social-icons a:hover{opacity:.4}.sidebar h1{color:var(--black);letter-spacing:-.5px;margin-top:0;margin-bottom:8px;font-family:IBM Plex Mono,monospace;font-size:36px;font-weight:700}.github-link{color:#333;opacity:.25;background:0 0;align-items:center;padding:0;text-decoration:none;transition:opacity .3s;display:flex}.github-link:hover{opacity:1}.github-link svg{flex-shrink:0}.nav-menu{gap:20px;margin-bottom:25px;display:flex}.nav-menu a{color:var(--gold);font-size:16px;text-decoration:none}.bio{color:var(--black);margin-top:0;margin-bottom:20px;font-size:14px;font-weight:400;line-height:1.9}.main-content{flex:1;min-width:0}.repos-header{margin-bottom:30px}.repo-input{border:1px solid var(--black);background:var(--white);width:250px;padding:8px 12px;font-family:IBM Plex Mono,monospace;font-size:14px}.repo-input:focus{border-color:var(--gold);outline:none}.add-repo-btn{background:var(--white);color:var(--black);border:1px solid var(--black);cursor:pointer;flex-shrink:0;justify-content:center;align-items:center;height:28px;padding:0 12px;font-family:IBM Plex Mono,monospace;font-size:14px;font-weight:400;line-height:28px;transition:background .2s,color .2s;display:flex}.add-repo-btn:hover{background:var(--black);color:var(--white)}.add-repo-btn:disabled{opacity:.5;cursor:not-allowed}.create-deck-btn{margin-left:5px}.section-title{color:var(--black);text-transform:uppercase;letter-spacing:2px;margin-top:10px;margin-bottom:30px;font-size:16px;font-weight:700}.projects-grid{grid-template-columns:repeat(auto-fit,320px);justify-content:start;gap:30px;display:grid}.project-card{background:var(--white);border:1px solid var(--black);cursor:pointer;width:320px;min-width:320px;max-width:320px;height:var(--project-card-height);color:inherit;flex-direction:column;text-decoration:none;transition:all .3s;display:flex;position:relative;overflow:hidden}.project-card:hover{box-shadow:0 4px 12px #00000026}.project-content{background:var(--white);flex-direction:column;flex:1;padding:50px 20px 20px;display:flex}.project-title{color:var(--black);text-overflow:ellipsis;white-space:nowrap;margin-bottom:12px;font-size:20px;font-weight:700;text-decoration:underline;overflow:hidden}.project-description{color:var(--black);-webkit-line-clamp:3;-webkit-box-orient:vertical;font-size:14px;line-height:1.7;display:-webkit-box;overflow:hidden}.project-stats{color:var(--black);align-items:center;gap:8px;margin-top:auto;padding-top:10px;font-size:11px;display:flex}.progress-label{flex-shrink:0}.progress-bar-container{background:#e0e0e0;border-radius:4px;flex:1;min-width:60px;height:8px;overflow:hidden}.progress-bar-fill{background:var(--black);border-radius:4px;height:100%;transition:width .3s}.progress-percent{text-align:right;flex-shrink:0;min-width:32px}.card-buttons{z-index:10;gap:5px;display:flex;position:absolute;top:10px;right:10px}.card-delete-btn,.card-reset-btn,.card-review-btn{background:var(--white);border:1px solid var(--black);cursor:pointer;justify-content:center;align-items:center;width:32px;height:32px;padding:6px;font-family:IBM Plex Mono,monospace;transition:opacity .15s;display:flex}.card-delete-btn{padding:0;font-size:24px;line-height:1}.card-reset-btn img,.card-review-btn img{width:16px;height:16px;display:block}.loading{color:var(--black);padding:20px;font-size:14px}.evicted-notice{color:#5a4300;background:#fff8e1;border:1px solid #e6c86b;border-radius:4px;align-items:flex-start;gap:12px;margin:0 0 16px;padding:12px 16px;font-size:13px;display:flex}.evicted-notice-body{flex:1}.evicted-notice-body strong{margin-bottom:6px;display:block}.evicted-notice-body ul{margin:0 0 6px 18px;padding:0}.evicted-notice-body code{background:#0000000f;border-radius:3px;padding:1px 4px;font-size:12px}.evicted-notice-hint{opacity:.8;margin:4px 0 0;font-size:12px}.evicted-notice-dismiss{color:#5a4300;cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:20px;line-height:1}.evicted-notice-dismiss:hover{color:#000}.study-container{max-width:800px;margin:0 auto;padding:20px 30px}.study-header{border-bottom:1px solid var(--black);justify-content:space-between;align-items:center;margin-bottom:40px;padding-bottom:20px;display:flex}.back-link{color:var(--gold);font-size:14px;text-decoration:none}.back-link:hover{opacity:.7}.study-progress{max-width:640px;margin-top:20px;margin-bottom:20px}.study-area{min-height:400px}.card-container{background:var(--white);border:1px solid var(--black);max-width:640px;min-height:300px;margin-bottom:30px;padding:40px}.card-content{overflow-wrap:anywhere;font-size:14px;line-height:1.7}.card-content.hidden{display:none}.card-content img{object-fit:contain;width:auto;max-width:500px;height:auto;max-height:500px;margin:20px auto;display:block}.card-content .katex{font-size:1.1em}.card-content .katex-display{margin:1.5em 0}.answer-separator{margin:0;padding-top:.1em}.answer-separator:before{content:"---";color:var(--black);opacity:.6;margin-bottom:1em;font-size:.9em;display:block}.cloze{background:var(--gold);color:var(--black);border-radius:2px;padding:2px 8px}.cloze-reveal{background:var(--gold);color:var(--black);border-radius:2px;padding:2px 8px;font-weight:700}.solution-step{margin:.5em 0;padding:0}.solution-step-label{color:var(--gold);margin-bottom:0;font-weight:700;display:inline-block;position:relative}.solution-step-content{color:var(--black);margin-top:.1em;margin-left:1em}.info-icon{cursor:help;position:absolute;top:-3px;left:-16px}.info-icon-circle{background:var(--white);width:11px;height:11px;color:var(--black);border:1px solid var(--black);border-radius:50%;justify-content:center;align-items:center;font-size:7px;font-style:normal;font-weight:700;line-height:1;display:flex}.tooltip{background:var(--white);border:1px solid var(--black);z-index:1000;opacity:0;visibility:hidden;pointer-events:none;border-radius:4px;min-width:250px;max-width:350px;padding:12px 16px;transition:opacity .2s,visibility .2s;position:absolute;top:calc(100% + 8px);left:50%;transform:translate(-50%);box-shadow:0 4px 12px #00000026}.info-icon:hover .tooltip,.info-icon.active .tooltip{opacity:1;visibility:visible}.tooltip:before{content:"";border:6px solid #0000;border-bottom-color:var(--black);position:absolute;bottom:100%;left:50%;transform:translate(-50%)}.tooltip:after{content:"";border:5px solid #0000;border-bottom-color:var(--white);position:absolute;bottom:100%;left:50%;transform:translate(-50%)translateY(1px)}.tooltip ul{color:var(--black);margin:0;padding:0;font-size:13px;line-height:1.6;list-style:none}.tooltip li{padding:4px 0 4px 16px;position:relative}.tooltip li:before{content:"•";color:var(--gold);font-weight:700;position:absolute;left:0}.action-prompt{text-align:center;color:var(--black);margin:30px 0;font-size:14px}.action-prompt.hidden{display:none}kbd{background:var(--black);color:var(--white);border-radius:3px;padding:2px 8px;font-family:IBM Plex Mono,monospace;font-size:.9em}.grade-buttons{justify-content:center;gap:15px;max-width:640px;margin-top:30px;display:flex}.grade-buttons.hidden{display:none}.grade-btn{background:var(--white);border:1px solid var(--black);cursor:pointer;flex-direction:column;align-items:center;gap:8px;min-width:100px;padding:15px 20px;font-family:IBM Plex Mono,monospace;font-size:14px;transition:all .2s;display:flex}.grade-btn kbd{background:var(--black);color:var(--white);border:none;border-radius:3px;padding:2px 8px}.session-complete{text-align:center;padding:60px 20px}.session-complete.hidden{display:none}.session-complete h2{margin-bottom:20px;font-size:28px}.session-complete p{margin-bottom:30px;font-size:16px}.btn-primary{background:var(--black);color:var(--white);cursor:pointer;border:none;padding:12px 30px;font-family:IBM Plex Mono,monospace;font-size:14px;text-decoration:none;transition:opacity .2s;display:inline-block}.btn-primary:hover{opacity:.8}.btn-reveal{background:var(--black);color:var(--white);cursor:pointer;border:none;border-radius:4px;padding:8px 64px;font-family:IBM Plex Mono,monospace;font-size:16px;transition:opacity .2s;display:inline-block}.action-prompt{flex-direction:column;align-items:center;gap:16px;max-width:640px;display:flex}.action-prompt .hint{opacity:.7;color:var(--black);font-size:.65em}.action-prompt .hint kbd{background:var(--white);color:var(--black);border:1px solid var(--black);border-radius:2px;padding:1px 12px;font-size:1em}@media (width<=1024px){.projects-grid{grid-template-columns:repeat(auto-fit,320px)}.layout{gap:120px}}@media (width<=900px){.layout{flex-direction:column;gap:40px}.sidebar{flex-shrink:0;width:320px;position:static}.main-content{width:100%}.projects-grid{grid-template-columns:repeat(auto-fit,320px)}.section-title{margin-top:0}}@media (width<=480px){.layout{padding:15px 30px}.sidebar .title{font-size:14px}.sidebar-content ol{padding-left:35px}.project-card{margin-bottom:20px}.study-container{padding:15px}.card-container{padding:20px}.grade-buttons{flex-wrap:wrap}.grade-btn{min-width:80px;padding:12px 15px}}.topic-section{margin-bottom:40px}.topic-header{border-bottom:1px solid var(--black);margin-bottom:15px;padding-bottom:10px}.topic-header h3{text-transform:uppercase;letter-spacing:1px;margin:0;font-size:18px;font-weight:400}.decks-container{grid-template-columns:repeat(auto-fit,320px);justify-content:start;gap:30px;margin-top:20px;display:grid}.repo-input-wrapper{position:relative}.repo-suggestions{background:var(--white);border:1px solid var(--black);z-index:1001;border-top:none;max-height:300px;position:absolute;top:100%;left:0;right:0;overflow-y:auto}.repo-suggestions.hidden{display:none}.repo-suggestion-item{cursor:pointer;border-bottom:1px solid #e0e0e0;padding:8px 12px;transition:background-color .2s}.repo-suggestion-item:last-child{border-bottom:none}.repo-suggestion-item:hover,.repo-suggestion-item.selected{background:var(--light-gray)}.repo-suggestion-name{color:var(--black);font-size:11px;font-weight:500}.repo-suggestion-desc{color:#666;text-overflow:ellipsis;white-space:nowrap;margin-top:4px;font-size:10px;overflow:hidden}.repo-suggestion-meta{color:#999;gap:8px;margin-top:4px;font-size:9px;display:flex}.repo-suggestion-meta span{font-size:9px}.repo-loading{text-align:center;color:#666;padding:8px 12px;font-size:11px}.modal{z-index:1000;background:#00000080;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:fixed;top:0;left:0}.modal-content{background:var(--white);border:2px solid var(--black);width:90%;max-width:500px;font-family:IBM Plex Mono,monospace}.modal-header{border-bottom:1px solid var(--black);justify-content:space-between;align-items:center;padding:20px;display:flex}.modal-header h3{text-transform:uppercase;letter-spacing:1px;margin:0;font-size:18px;font-weight:400}.modal-close{cursor:pointer;width:30px;height:30px;color:var(--black);background:0 0;border:none;justify-content:center;align-items:center;padding:0;font-size:24px;display:flex}.modal-close:hover{background:var(--black);color:var(--white)}.modal-body{padding:20px}.modal-body label{margin-bottom:8px;font-size:14px;font-weight:400;display:block}.modal-body input{border:1px solid var(--black);box-sizing:border-box;width:100%;padding:10px;font-family:IBM Plex Mono,monospace;font-size:14px}.modal-body input:focus{border-color:var(--black);outline:none;box-shadow:0 0 0 2px #0000001a}.modal-hint{color:#666;margin-top:8px;font-size:12px}.modal-footer{border-top:1px solid var(--black);justify-content:flex-end;gap:10px;padding:20px;display:flex}.btn-cancel{background:var(--white);border:1px solid var(--black);cursor:pointer;padding:10px 20px;font-family:IBM Plex Mono,monospace;font-size:14px}.btn-cancel:hover{background:var(--black);color:var(--white)}.btn-primary{background:var(--black);color:var(--white);border:1px solid var(--black);cursor:pointer;padding:10px 20px;font-family:IBM Plex Mono,monospace;font-size:14px}.btn-primary:hover{background:var(--white);color:var(--black)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-danger{color:var(--white);background:#b00020;border-color:#b00020}.btn-danger:hover{background:var(--white);color:#b00020}.confirm-modal-message{white-space:pre-wrap;margin:0;font-size:14px;line-height:1.5}.controls-bar{flex-direction:column;gap:16px;margin-top:20px;margin-bottom:8px;display:flex}.controls-row{flex-flow:column wrap;align-items:stretch;gap:10px;display:flex}.study-library-actions{align-items:center;width:100%;min-width:min(100%,340px);display:flex}.study-add-deck-control{min-width:210px}.study-add-deck-control .repo-suggestions{right:-1px}.controls-row>.search-input{width:100%}.study-view-curriculum{border:1px solid var(--black);background:var(--white);min-height:28px;color:var(--black);font:inherit;white-space:nowrap;margin-left:10px;padding:5px 10px;font-size:.68rem;line-height:1}.study-view-curriculum:hover{background:var(--yellow)}.review-row{align-items:center;gap:10px;width:100%;display:flex}.study-settings-modal-content{max-width:680px;min-height:0}.study-settings-body{min-height:0;overflow-y:auto}.study-settings-tabs{border-bottom:1px solid var(--black);background:var(--white);flex-shrink:0;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.study-settings-tabs button{border:0;border-right:1px solid var(--black);background:var(--white);min-width:0;min-height:42px;color:var(--black);font:inherit;overflow-wrap:anywhere;cursor:pointer;border-radius:0;padding:8px 10px;font-size:.72rem}.study-settings-tabs button:last-child{border-right:0}.study-settings-tabs button[aria-selected=true]{background:color-mix(in srgb, var(--gold) 22%, var(--white));box-shadow:inset 0 -3px 0 var(--gold)}.study-settings-tabs button:focus-visible{outline:2px solid var(--black);outline-offset:-3px}.study-settings-pane{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 20px;display:grid}.study-settings-pane.is-single-column{grid-template-columns:minmax(0,1fr)}.study-settings-pane[hidden]{display:none}.study-settings-subheading{border-top:1px solid var(--subtle-border);margin:8px 0 0;padding-top:16px;font-size:.76rem;font-weight:500}.study-settings-pane>.study-settings-subheading:first-child{border-top:0;margin-top:0;padding-top:0}.study-settings-modal-content .modal-footer{background:var(--white);flex-shrink:0}.study-settings-modal-content[data-active-settings-tab=agents] .modal-footer{display:none}.study-settings-pane.generation-activity-settings{grid-template-columns:minmax(0,1fr) auto;align-items:start}.study-setting-field{grid-template-columns:minmax(0,1fr);align-content:start;gap:6px;min-width:0;font-size:.76rem;display:grid}.study-setting-field label,.study-settings-body .ai-provider-connect-panel label{overflow-wrap:anywhere;margin:0}.study-setting-field select,.study-setting-field input{box-sizing:border-box;border:1px solid var(--black);background:var(--white);width:100%;min-width:0;height:38px;color:var(--black);border-radius:0;padding:0 10px;font-family:IBM Plex Mono,monospace;font-size:.76rem}.study-setting-field input{grid-column:1}.study-settings-help{color:#666;grid-column:1/-1;margin:0;font-size:.72rem;line-height:1.45}.curriculum-settings-sources{grid-column:1/-1;gap:8px;display:grid}.curriculum-settings-sources .curriculum-source-row{grid-template-columns:auto minmax(0,1fr) minmax(70px,90px) auto;margin:0}.curriculum-settings-add-source{border:1px solid var(--black);background:var(--white);color:var(--black);font:inherit;border-radius:0;grid-column:1/-1;justify-self:start;padding:7px 10px;font-size:.68rem}.ai-provider-list{grid-column:1/-1;gap:7px;display:grid}.ai-provider-row{border:1px solid var(--subtle-border);grid-template-columns:minmax(120px,1fr) minmax(110px,auto) auto;align-items:center;gap:10px;min-height:36px;padding:5px 7px;font-size:.74rem;display:grid}.ai-provider-state{color:#666;font-size:.7rem}.ai-provider-state.connected{color:var(--black)}.ai-provider-actions{gap:5px;display:flex}.ai-provider-actions button,.ai-provider-connect-panel button{border:1px solid var(--black);background:var(--white);min-height:28px;color:var(--black);font:inherit;cursor:pointer;border-radius:0;padding:0 8px}.ai-provider-connect-panel{border:1px solid var(--black);grid-column:1/-1;grid-template-columns:auto minmax(160px,1fr) auto auto;align-items:center;gap:7px;padding:9px;display:grid}.ai-provider-connect-panel input{box-sizing:border-box;border:1px solid var(--black);background:var(--white);width:100%;min-width:0;height:30px;color:var(--black);border-radius:0;font-family:IBM Plex Mono,monospace}.ai-provider-connect-panel .study-settings-help{grid-column:1/-1}#daily-reminder-time{justify-self:start;width:10rem;max-width:100%}.pwa-install-prompt{border:1px solid var(--black);background:#fff9df;justify-content:space-between;align-items:center;gap:14px;padding:10px 12px;font-size:.74rem;line-height:1.45;display:flex}.pwa-install-prompt button{border:1px solid var(--black);background:var(--gold);min-height:32px;color:var(--black);font:inherit;cursor:pointer;flex-shrink:0;padding:0 12px}.pwa-install-modal-content{max-width:520px}.pwa-install-body{font-size:.82rem;line-height:1.6}.pwa-install-body ol{margin:0;padding-left:24px}.pwa-install-body p{color:#666;margin:16px 0 0}.session-complete-actions button{border:1px solid var(--black);background:var(--white);min-height:32px;color:var(--black);cursor:pointer;border-radius:0;padding:0 12px;font-family:IBM Plex Mono,monospace;font-size:.76rem}#session-learn-more{background:var(--gold)}.session-complete-actions{justify-content:center;align-items:flex-start;gap:10px;margin-top:18px;display:flex}.session-complete-return{flex-direction:column;align-items:center;gap:8px;display:flex}.session-complete-return .hint{color:var(--black);opacity:.7;font-size:.62rem}.session-complete-return .hint kbd{background:var(--white);color:var(--black);border:1px solid var(--black);border-radius:2px;padding:1px 10px;font-size:1em}.review-loading{margin-bottom:8px;font-size:.75rem}.review-loading-meta{justify-content:space-between;gap:12px;margin-bottom:6px;display:flex}.review-loading-track{background:#e0e0e0;border-radius:3px;height:6px;overflow:hidden}.review-loading-fill{background:var(--gold);border-radius:inherit;width:0;height:100%;transition:width .15s}.view-toggle-btn{padding:0 12px;font-size:1rem}.controls-bar.hidden{display:none}.search-input{border:1px solid var(--black);box-sizing:border-box;width:320px;height:28px;padding:5px 8px;font-family:IBM Plex Mono,monospace;font-size:12px;line-height:1}.category-filter{border:1px solid var(--black);background:var(--white);cursor:pointer;min-width:160px;padding:10px 15px;font-family:IBM Plex Mono,monospace;font-size:12px}.category-filter:focus{outline:none;box-shadow:0 0 0 2px #0000001a}.drill-all-btn{background:var(--black);color:var(--white);border:1px solid var(--black);cursor:pointer;box-sizing:border-box;flex-shrink:0;justify-content:center;align-items:center;height:28px;padding:0 10px;display:inline-flex}.drill-all-btn:disabled{opacity:.5;cursor:not-allowed}.search-input:focus{outline:none;box-shadow:0 0 0 2px #0000001a}.sort-select{border:1px solid var(--black);background:var(--white);cursor:pointer;min-width:150px;padding:10px 15px;font-family:IBM Plex Mono,monospace;font-size:14px}.sort-select:focus{outline:none;box-shadow:0 0 0 2px #0000001a}.sort-select:hover{background:var(--black);color:var(--white)}.modal{z-index:1000;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:fixed;top:0;left:0}.modal.hidden{display:none}.modal-overlay{background:#00000080;width:100%;height:100%;position:absolute;top:0;left:0}.modal-content{background:var(--white);border:1px solid var(--black);z-index:1001;flex-direction:column;width:90vw;max-height:90vh;display:flex;position:relative}.modal-header{border-bottom:1px solid var(--black);background:var(--white);flex-shrink:0;justify-content:space-between;align-items:center;padding:30px 30px 15px;display:flex}.modal-breadcrumb{color:var(--black);flex-wrap:wrap;flex:1;align-items:center;font-family:IBM Plex Mono,monospace;font-size:16px;display:flex}.breadcrumb-segment{display:inline-block}.breadcrumb-clickable{cursor:pointer;text-decoration:underline;-webkit-text-decoration-color:var(--gold);text-decoration-color:var(--gold);text-underline-offset:2px;color:var(--gold)}.breadcrumb-separator{color:var(--black);margin:0}.modal-header h2{margin:0;font-family:IBM Plex Mono,monospace;font-size:24px}.modal-close{cursor:pointer;width:32px;height:32px;color:var(--black);background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;padding:0;font-size:32px;display:flex}#subdeck-grid{flex:1;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));align-content:start;gap:30px;padding:30px;display:grid;overflow-y:auto}.today-hero{border:1px solid var(--black);border-left:4px solid var(--gold);background:#f5c8421f;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;padding:18px 20px;display:flex}.today-hero-text{flex-direction:column;gap:4px;display:flex}.today-hero-text strong{font-size:1.05rem}.today-hero-text span{opacity:.75;font-size:.85rem}.today-start-btn{white-space:nowrap;flex-shrink:0}.streak-badge{background:var(--black);height:32px;color:var(--gold);white-space:nowrap;align-items:center;margin-left:8px;padding:4px 10px;font-family:IBM Plex Mono,monospace;font-size:.8rem;display:inline-flex}.card-star-btn{background:var(--white);border:1px solid var(--black);cursor:pointer;width:32px;height:32px;color:var(--black);justify-content:center;align-items:center;padding:0;font-size:18px;line-height:1;transition:opacity .15s;display:flex}.card-star-btn.active{background:var(--gold)}.session-habit-line{opacity:.8;margin-top:8px;font-size:.9rem}.dashboard{padding:4px 0 24px}.dash-header{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:20px;display:flex}.dash-header h2{margin:0}.dash-kpis{gap:20px;display:flex}.dash-kpi{flex-direction:column;align-items:center;display:flex}.dash-kpi strong{font-size:1.3rem}.dash-kpi span{opacity:.6;text-transform:uppercase;letter-spacing:.03em;font-size:.72rem}.dash-section{margin-bottom:26px}.dash-section h3{border-bottom:1px solid var(--black);margin:0 0 10px;padding-bottom:4px;font-size:.95rem}.review-heatmap{position:relative}.heatmap-summary,.heatmap-footer{justify-content:space-between;align-items:center;gap:14px;font-size:.76rem;display:flex}.heatmap-summary{margin-bottom:8px}.heatmap-summary>span{color:var(--muted);white-space:nowrap;align-items:center;gap:8px;display:flex}.heatmap-year{border:1px solid var(--black);color:var(--black);padding:2px 6px}.heatmap-scroll{scrollbar-width:thin;padding:6px 0 4px;overflow-x:auto}.review-heatmap-svg{max-width:none;font-family:IBM Plex Mono,monospace;display:block}.heatmap-month,.heatmap-weekday{fill:var(--muted);font-size:9px}.heatmap-day{outline:none}.heatmap-day:hover,.heatmap-day:focus{stroke:var(--black);stroke-width:2px}.heatmap-footer{color:var(--muted);margin-top:7px}.heatmap-goal-key,.heatmap-legend{align-items:center;gap:4px;display:inline-flex}.heatmap-legend-cell{background:var(--gold);border-radius:2px;width:11px;height:11px;display:inline-block}.heatmap-level-0{background:var(--heatmap-empty)}.heatmap-level-1{background:#f5c84247}.heatmap-level-2{background:#f5c84280}.heatmap-level-3{background:#f5c842b8}.heatmap-level-4{background:var(--gold)}.heatmap-legend-cell.goal-met{border:2px solid var(--black);box-sizing:border-box}.heatmap-tooltip{z-index:5;background:var(--black);width:max-content;max-width:230px;color:var(--white);pointer-events:none;text-align:center;padding:5px 8px;font-size:.72rem;line-height:1.35;position:absolute;transform:translate(-50%,-100%)}.heatmap-tooltip[hidden]{display:none}@media (width<=680px){.heatmap-summary{flex-direction:column;align-items:flex-start;gap:5px}.heatmap-footer{flex-direction:column;align-items:flex-start}}.dash-empty{opacity:.6;font-size:.85rem}.review-calendar{border:1px solid var(--subtle-border);background:var(--off-white);margin-bottom:14px;padding:10px}.review-calendar-header{grid-template-columns:auto 1fr auto;align-items:center;gap:10px;margin-bottom:10px;font-size:.75rem;display:grid}.review-calendar-header>span{color:var(--muted)}.review-calendar-filters{gap:5px;display:flex}.review-calendar-filter{border:1px solid var(--subtle-border);background:var(--white);color:var(--muted);font:inherit;cursor:pointer;padding:4px 7px}.review-calendar-filter:hover:not(:disabled),.review-calendar-filter.active{border-color:var(--black);color:var(--black)}.review-calendar-filter:disabled{cursor:default;opacity:.45}.review-calendar-weekdays,.review-calendar-grid{grid-template-columns:repeat(7,minmax(0,1fr));gap:4px;display:grid}.review-calendar-weekdays{color:var(--muted);text-align:center;margin-bottom:4px;font-size:.62rem}.review-calendar-day{border:1px solid var(--subtle-border);background:var(--white);min-width:0;min-height:42px;color:var(--black);font:inherit;cursor:pointer;justify-content:space-between;align-items:center;gap:3px;padding:5px;display:flex}.review-calendar-day>span{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:.62rem;overflow:hidden}.review-calendar-day>strong{font-size:.75rem}.review-calendar-day.level-1{background:color-mix(in srgb, var(--gold) 18%, var(--white))}.review-calendar-day.level-2{background:color-mix(in srgb, var(--gold) 34%, var(--white))}.review-calendar-day.level-3{background:color-mix(in srgb, var(--gold) 54%, var(--white))}.review-calendar-day.level-4{background:color-mix(in srgb, var(--gold) 76%, var(--white))}.review-calendar-day:hover:not(:disabled),.review-calendar-day.active,.review-calendar-day.is-today{border-color:var(--black)}.review-calendar-day.active{box-shadow:inset 0 0 0 1px var(--black)}.review-calendar-day:disabled{cursor:default;opacity:.48}.review-calendar-day.is-past:not(.is-today){opacity:.58}.review-schedule-summary{color:var(--muted);margin-bottom:8px;font-size:.78rem}.review-schedule-list{border:1px solid var(--black);scrollbar-width:thin;scrollbar-color:var(--muted) var(--off-white);scrollbar-gutter:stable;overscroll-behavior:contain;min-height:180px;max-height:min(52vh,560px);overflow-y:auto}.review-schedule-list::-webkit-scrollbar{width:10px}.review-schedule-list::-webkit-scrollbar-track{background:var(--off-white);border-left:1px solid var(--subtle-border)}.review-schedule-list::-webkit-scrollbar-thumb{background:var(--muted);border:2px solid var(--off-white)}.review-schedule-row{border-bottom:1px solid var(--subtle-border);grid-template-columns:minmax(0,1fr) minmax(220px,auto);gap:20px;padding:10px 12px;display:grid}.review-schedule-row:last-child{border-bottom:0}.review-schedule-row.is-due{box-shadow:inset 3px 0 0 var(--gold);background:color-mix(in srgb, var(--gold) 9%, var(--white))}.review-schedule-main,.review-schedule-time{flex-direction:column;min-width:0;display:flex}.review-schedule-main .review-card-id{text-overflow:ellipsis;white-space:nowrap;font-size:.84rem;font-weight:600;overflow:hidden}.review-card-tags{flex-wrap:wrap;gap:4px;margin-top:5px;display:flex}.review-card-tags .review-card-tag{border:1px solid var(--subtle-border);background:var(--off-white);color:var(--muted);padding:2px 5px;font-size:.66rem;line-height:1.25}.review-schedule-main .review-card-prompt,.review-schedule-time span{color:var(--muted);font-size:.7rem}.review-schedule-main .review-card-prompt{text-overflow:ellipsis;white-space:nowrap;margin-top:5px;overflow:hidden}.review-schedule-time{text-align:right;font-variant-numeric:tabular-nums;align-items:flex-end}.review-schedule-time strong{color:var(--muted);font-size:.74rem}.review-schedule-row.is-due .review-schedule-time strong{color:var(--black)}.review-schedule-time time{font-size:.75rem}@media (width<=680px){.review-calendar-header{grid-template-columns:1fr;gap:5px}.review-calendar-day{flex-direction:column;align-items:flex-start;min-height:38px;padding:4px}.review-calendar-day>span{max-width:100%;font-size:.54rem}.review-schedule-row{grid-template-columns:1fr;gap:5px}.review-schedule-time{text-align:left;align-items:flex-start}}:root[data-theme=dark] body,:root[data-theme=dark] .modal-content,:root[data-theme=dark] .user-info,:root[data-theme=dark] .card-front,:root[data-theme=dark] .card-back,:root[data-theme=dark] .project-card{background:var(--white);color:var(--black)}:root[data-theme=dark] input,:root[data-theme=dark] select,:root[data-theme=dark] textarea,:root[data-theme=dark] button{background-color:var(--white);color:var(--black);border-color:var(--black)}:root[data-theme=dark] .recommended-study-action:not(:disabled),:root[data-theme=dark] .streak-badge,:root[data-theme=dark] .card-star-btn.active{background:var(--gold);color:#1a1a1a}:root[data-theme=dark] .tree-row,:root[data-theme=dark] .tree-deck-row,:root[data-theme=dark] .column-row,:root[data-theme=dark] .columns-pane{border-color:var(--subtle-border)}:root[data-theme=dark] .review-btn:disabled{color:var(--muted);border-color:var(--subtle-border)}:root[data-theme=dark] .heatmap-level-0{background:var(--heatmap-empty)}:root[data-theme=dark] code,:root[data-theme=dark] kbd{background:var(--light-gray);color:var(--black)}.dash-decks{flex-direction:column;gap:6px;display:flex}.dash-deck-row{grid-template-columns:140px 1fr 40px;align-items:center;gap:10px;font-size:.82rem;display:grid}.dash-deck-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.dash-deck-bar{background:var(--light-gray);border:1px solid var(--black);height:10px;display:block}.dash-deck-bar>span{background:var(--gold);height:100%;display:block}.dash-deck-count{text-align:right;font-variant-numeric:tabular-nums;opacity:.7}.reminder-affordance{opacity:.85;flex-basis:100%;margin-top:10px;font-size:.8rem}.reminder-btn{background:var(--white);border:1px solid var(--black);cursor:pointer;padding:6px 12px;font-family:IBM Plex Mono,monospace;font-size:.8rem}.reminder-btn:disabled{opacity:.6;cursor:default}.view-tabs{border-bottom:1px solid var(--black);gap:0;margin-bottom:14px;display:flex}.view-tab{cursor:pointer;color:var(--black);opacity:.5;background:0 0;border:1px solid #0000;border-bottom:none;margin-bottom:-1px;padding:8px 18px;font-family:IBM Plex Mono,monospace;font-size:.9rem}.view-tab.active{opacity:1;border-color:var(--black);background:var(--white);font-weight:600}.view-tab{text-decoration:none}.view-tab:hover{opacity:1;text-decoration:none}.deck-tree{flex-direction:column;gap:2px;display:flex}.tree-group{margin-bottom:6px}.tree-group-header{cursor:pointer;border-bottom:1px solid var(--black);-webkit-user-select:none;user-select:none;align-items:center;gap:8px;padding:8px 6px;display:flex}.tree-group-header:hover{background:var(--light-gray)}.tree-caret{opacity:.7;width:12px;font-size:.8rem}.tree-group-name{font-size:.95rem;font-weight:600}.tree-group-meta{opacity:.55;margin-left:auto;font-size:.75rem}.tree-deck-row{border-bottom:1px solid #eee;align-items:center;gap:10px;padding:7px 6px 7px 26px;display:flex}.tree-deck-row:hover{background:var(--light-gray)}.tree-star{cursor:pointer;color:var(--black);background:0 0;border:none;flex-shrink:0;width:20px;padding:0;font-size:16px;line-height:1}.tree-star.active{color:var(--gold)}.tree-deck-name{cursor:pointer;text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:.9rem;overflow:hidden}.tree-deck-name:hover{text-decoration:underline}.tree-deck-counts{font-variant-numeric:tabular-nums;white-space:nowrap;flex-shrink:0;font-size:.78rem}.cnt-due{color:var(--black);font-weight:600}.cnt-new{opacity:.7}.cnt-done{opacity:.45}.tree-drill{background:var(--black);border:1px solid var(--black);cursor:pointer;flex-shrink:0;align-items:center;padding:4px 6px;display:flex}.tree-drill img{filter:invert();display:block}.tree-drill:hover{opacity:.8}.review-btn{background:var(--white);border:1px solid var(--black);height:32px;color:var(--black);cursor:pointer;white-space:nowrap;padding:0 16px;font-family:IBM Plex Mono,monospace;font-size:.85rem;font-weight:600}.review-btn:hover:not(:disabled){background:var(--light-gray)}.learn-new-btn{background:var(--white)}.learn-new-btn:hover:not(:disabled){background:var(--light-gray)}.review-btn:disabled{background:var(--light-gray);color:#999;cursor:default;border-color:#ccc}.review-btn.recommended-study-action:not(:disabled){background:var(--gold)}.review-btn.recommended-study-action:hover:not(:disabled){background:#f8d96b}@media (width<=680px){.search-input{width:100%}.study-library-actions{width:100%;min-width:0;margin-left:0}.study-add-deck-control{min-width:0}.review-row{flex-wrap:wrap}.streak-badge{margin-left:0}.study-settings-pane{grid-template-columns:1fr}.study-settings-help,.ai-provider-list,.ai-provider-connect-panel{grid-column:1}.ai-provider-row{grid-template-columns:1fr auto}.ai-provider-state{grid-area:2/1}.ai-provider-actions{grid-area:1/2/span 2}.ai-provider-connect-panel{grid-template-columns:1fr 1fr}.ai-provider-connect-panel label,.ai-provider-connect-panel input{grid-column:1/-1}.curriculum-settings-sources .curriculum-source-row{grid-template-columns:auto minmax(0,1fr) auto}.curriculum-settings-sources .curriculum-source-row input:nth-of-type(3){grid-column:2}.pwa-install-prompt{flex-direction:column;align-items:flex-start}}body.standalone-phone .layout{gap:0}body.standalone-phone .sidebar{display:none}body.standalone-phone.mobile-sidebar-expanded .sidebar{width:100%;display:block}body.standalone-phone .mobile-sidebar-open{color:#666;background:0 0;border:1px solid #0000;margin:0 0 0 auto;padding:3px 7px;font-family:IBM Plex Mono,monospace;font-size:.7rem;text-decoration:underline;display:block}body.standalone-phone .mobile-sidebar-close{color:#666;background:0 0;border:1px solid #0000;margin:0 0 8px auto;padding:3px 7px;font-family:IBM Plex Mono,monospace;font-size:.7rem;text-decoration:underline;display:block}@media (width<=600px) and (display-mode:standalone){body:not(.mobile-sidebar-expanded) .sidebar{display:none}}.view-toggle{border:1px solid var(--black);height:32px;display:inline-flex}.view-toggle-btn{background:var(--white);cursor:pointer;color:var(--black);opacity:.55;border:none;padding:0 14px;font-family:IBM Plex Mono,monospace;font-size:.8rem}.view-toggle-btn+.view-toggle-btn{border-left:1px solid var(--black)}.view-toggle-btn.active{background:var(--black);color:var(--white);opacity:1}.projects-grid.tree-mode{width:100%;display:block}.tree-group-header{align-items:center;gap:8px;display:flex}.tree-group-body{cursor:pointer;flex:1;align-items:center;gap:8px;display:flex}.tree-star-parent{width:22px;font-size:17px}.tree-row{border-bottom:1px solid #eee;align-items:center;min-height:34px;display:flex}.tree-row:hover{background:var(--light-gray)}.tree-subject-row{border-bottom:1px solid var(--black);min-height:38px}.tree-name-cell{cursor:pointer;flex:1;align-items:center;gap:6px;min-width:0;padding:4px 0;display:flex;overflow:hidden}.tree-caret{opacity:.6;flex-shrink:0;width:12px;font-size:.7rem}.tree-name{text-overflow:ellipsis;white-space:nowrap;font-size:.9rem;overflow:hidden}.tree-subject-name{font-size:.98rem;font-weight:600}.tree-chapter-name{opacity:.9;font-size:.84rem}.tree-meta{text-align:right;opacity:.55;white-space:nowrap;flex-shrink:0;width:130px;padding-right:12px;font-size:.75rem}.tree-actions{flex-shrink:0;grid-template-columns:repeat(4,28px);align-items:center;display:grid}.tree-act,.tree-star{cursor:pointer;color:var(--black);opacity:.6;background:0 0;border:none;justify-content:center;align-items:center;padding:4px 0;font-size:15px;line-height:1;display:flex}.tree-act:hover,.tree-star:hover{opacity:1}.tree-star.active{color:var(--gold);opacity:1}.tree-act.tree-del{font-size:18px}.tree-act img,.tree-act svg,.tree-act-empty{display:block}.tree-children{border-left:1px solid #d0d0d0;margin-left:13px}.tree-children>.tree-row>.tree-name-cell,.tree-children>.tree-deck-block>.tree-row>.tree-name-cell{padding-left:16px;position:relative}.tree-children>.tree-row>.tree-name-cell:before,.tree-children>.tree-deck-block>.tree-row>.tree-name-cell:before{content:"";border-top:1px solid #d0d0d0;width:12px;position:absolute;top:50%;left:0}.study-back-btn{background:var(--white);border:1px solid var(--black);cursor:pointer;margin-bottom:16px;padding:5px 12px;font-family:IBM Plex Mono,monospace;font-size:.8rem}.study-back-btn:hover{background:var(--light-gray)}.projects-grid.columns-mode{width:100%;display:block}.columns-view{--col-row-h:34px;--col-header-h:30px;border:1px solid var(--black);height:calc(var(--col-header-h) + var(--col-row-h) * 7);align-items:stretch;display:flex;overflow:hidden}.col-pane{border-right:1px solid #ddd;flex-direction:column;flex:1 1 0;min-width:0;display:flex;overflow:hidden}.col-pane:last-child{border-right:none}.col-pane-label{flex:0 0 var(--col-header-h);height:var(--col-header-h);box-sizing:border-box;border-bottom:1px solid var(--black);background:var(--light-gray);letter-spacing:.08em;text-transform:uppercase;align-items:center;padding:0 8px;font-size:.7rem;font-weight:600;display:flex}.col-pane-scroll{overscroll-behavior-y:contain;flex:auto;min-height:0;overflow-y:auto}.col-row{height:var(--col-row-h);cursor:pointer;border-bottom:1px solid #f2f2f2;align-items:center;gap:6px;padding:0 8px;display:flex}.col-row:hover{background:var(--light-gray)}.col-row.selected{background:#f5c84247}.col-star,.col-star-spacer{text-align:center;cursor:pointer;width:18px;color:var(--black);opacity:.55;background:0 0;border:none;flex-shrink:0;padding:0;font-size:14px;line-height:1}.col-star.active{color:var(--gold);opacity:1}.col-star.complete{color:var(--complete);opacity:1;font-size:16px;font-weight:700}.col-label{flex:1;align-items:baseline;gap:5px;min-width:0;display:flex;overflow:hidden}.col-name{text-overflow:ellipsis;white-space:nowrap;flex:auto;min-width:0;font-size:.86rem;overflow:hidden}.col-meta{opacity:.55;text-align:right;white-space:nowrap;flex-shrink:0;width:46px;font-size:.68rem}.col-row-actions{flex-shrink:0;align-items:center;gap:2px;display:flex}.col-act{cursor:pointer;color:var(--black);opacity:.5;background:0 0;border:none;justify-content:center;align-items:center;padding:2px 4px;font-size:14px;line-height:1;display:flex}.col-act:hover{opacity:1}.col-act.col-act-del{font-size:17px}.col-act img{width:13px;height:13px;display:block}.col-act svg{display:block}:root[data-theme=dark] img[alt=Review],:root[data-theme=dark] img[alt=gavel]{filter:invert()}.col-chevron{text-align:center;opacity:.4;flex-shrink:0;width:12px}.col-empty{opacity:.5;padding:12px;font-size:.8rem}.card-browser-modal-content{width:min(1100px,94vw);max-width:1100px;height:92vh}.card-browser-modal-content.is-summary-only{height:auto;max-height:min(92vh,560px)}.card-browser-header{grid-template-columns:minmax(0,1fr) auto;align-items:start;column-gap:20px;padding:22px 24px;display:grid}.card-browser-heading{min-width:0;display:contents}.card-browser-path{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;grid-area:1/1;font-size:.7rem;overflow:hidden}.card-browser-header h3{text-transform:none;letter-spacing:0;grid-area:2/1;margin:5px 0 0;font-size:1.14rem;font-weight:500}.card-browser-summary{color:var(--muted);grid-area:3/1/auto/-1;margin:5px 0 0;font-size:.68rem}.card-browser-progress{width:100%;color:var(--muted);grid-area:3/1/auto/-1;align-items:center;gap:14px;margin-top:16px;font-size:.64rem;display:flex}.card-browser-progress>span:first-child{white-space:nowrap;flex-shrink:0}.card-browser-progress .progress-bar-container{min-width:0}.card-browser-actions{flex-wrap:wrap;grid-area:4/1;gap:8px;margin-top:18px;display:flex}.card-browser-actions a,.card-browser-actions button{border:1px solid var(--black);background:var(--white);min-height:40px;color:var(--black);font:inherit;justify-content:center;align-items:center;padding:8px 16px;font-family:IBM Plex Mono,monospace;font-size:.7rem;line-height:1.2;text-decoration:none;display:inline-flex}.card-browser-actions .btn-primary{background:var(--black);color:var(--white)}.card-browser-actions .btn-primary:hover,.card-browser-actions .btn-primary:focus-visible{background:var(--white);color:var(--black)}.card-browser-content-toggle{color:var(--black);cursor:pointer;grid-area:4/2;justify-self:end;align-items:center;gap:8px;margin-top:18px;font-size:.68rem;display:inline-flex}.card-browser-content-toggle input{appearance:none;border:1px solid var(--black);background:var(--light-gray);cursor:pointer;border-radius:999px;width:36px;height:20px;margin:0;position:relative}.card-browser-content-toggle input:after{background:var(--muted);content:"";border-radius:50%;width:12px;height:12px;transition:transform .12s,background .12s;position:absolute;top:3px;left:3px}.card-browser-content-toggle input:checked{background:var(--black)}.card-browser-content-toggle input:checked:after{background:var(--white);transform:translate(16px)}.card-browser-error{min-height:1em;color:var(--danger);grid-area:5/1/auto/-1;margin:8px 0 0;font-size:.68rem}.card-browser-header>.modal-close{grid-area:1/2/3;justify-self:end}.card-browser-body{overscroll-behavior:contain;flex:1;min-height:0;padding:0 24px 32px;overflow-y:auto}.browser-card{border-bottom:1px solid var(--subtle-border);padding:24px 0 28px}.browser-card:last-child{border-bottom:none}.browser-card-meta{color:var(--muted);overflow-wrap:anywhere;flex-wrap:wrap;gap:5px 14px;margin-bottom:16px;font-size:.62rem;display:flex}.browser-card-side+.browser-card-side{margin-top:20px}.browser-side-label{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px;font-size:.65rem}.browser-card-answer{border-left:3px solid var(--gold);padding-left:14px}.browser-card-answer .answer-separator:before{display:none}.browser-card .card-content{font-size:.8rem}.browser-card .card-content img{max-width:100%;max-height:65vh}.browser-card .solution-step-content{margin:4px 0 14px;display:block}.browser-card .solution-step-label{color:var(--black)}@media (width<=620px){.card-browser-modal-content{border:none;width:100vw;height:100dvh;max-height:100dvh}.card-browser-header{padding:14px 16px}.card-browser-modal-content.is-summary-only{border:1px solid var(--black);height:auto;max-height:calc(100dvh - 16px)}.card-browser-actions{grid-column:1/-1}.card-browser-content-toggle{grid-area:5/1/auto/-1;justify-self:end;margin-top:12px}.card-browser-progress{gap:9px}.card-browser-error{grid-row:6}.card-browser-body{padding:0 16px 24px}.browser-card{padding:20px 0 24px}}@media (width<=760px){.columns-view{flex-direction:column;height:auto}.col-pane{border-right:none;border-bottom:3px solid var(--black);height:calc(var(--col-header-h) + var(--col-row-h) * 5);flex:none}.col-pane:last-child{border-bottom:none}}.study-header-row{align-items:baseline;max-width:640px;margin-bottom:4px;display:flex}.study-breadcrumb{flex-wrap:wrap;align-items:center;gap:4px;min-width:0;font-size:.8rem;display:flex}.study-home-btn{cursor:pointer;color:var(--black);background:0 0;border:none;padding:0;font-family:IBM Plex Mono,monospace;font-size:.8rem;text-decoration:underline}.study-home-btn:hover{opacity:.7}.study-bc-seg{opacity:.75}.study-bc-sep{opacity:.4}.study-bc-root{opacity:.75}.study-progress{margin-top:14px}.study-progress .progress-bar-fill,.card-browser-progress .progress-bar-fill{background:var(--gold);position:relative;overflow:hidden}@keyframes study-progress-glow{0%{transform:translate(0)}to{transform:translate(300%)}}.study-progress .progress-bar-fill:after,.card-browser-progress .progress-bar-fill:after{content:"";filter:blur(1px);pointer-events:none;background:linear-gradient(90deg,#f5c84200 0%,#fff49673 32%,#fffff5eb 50%,#fff49673 68%,#f5c84200 100%);width:55%;animation:3.5s linear infinite study-progress-glow;position:absolute;top:0;bottom:0;left:-60%}@media (prefers-reduced-motion:reduce){.study-progress .progress-bar-fill:after,.card-browser-progress .progress-bar-fill:after{display:none}}.study-progress .progress-percent{text-align:right;white-space:nowrap;width:auto;min-width:12ch}.study-progress-count{opacity:.55}@media (width<=620px){.study-progress{flex-wrap:wrap}.study-progress .progress-bar-container{min-width:0}.study-progress .progress-percent{text-align:right;flex-basis:100%}}.curriculum-view{width:min(100%,1120px);margin-top:18px}.curriculum-toolbar{flex-wrap:wrap;gap:10px;margin-bottom:16px;display:flex}.curriculum-breadcrumb-row{flex-wrap:wrap;align-items:flex-start;gap:12px;margin:0 0 14px;display:flex}.curriculum-breadcrumb{min-width:0;color:var(--muted);flex-wrap:wrap;flex:0 0 100%;align-items:baseline;gap:8px;margin:0;font-size:.78rem;line-height:1.5;display:flex}.curriculum-history-controls{flex:none;gap:6px;margin-left:0;display:inline-flex}.curriculum-breadcrumb-actions{flex-wrap:wrap;flex:none;gap:6px;display:inline-flex}.curriculum-breadcrumb-actions .curriculum-toolbar-action{height:32px;min-height:32px;padding-block:0}.curriculum-history-controls button{border:1px solid var(--black);background:var(--white);width:32px;height:32px;color:var(--black);font:inherit;border-radius:0;place-items:center;padding:0;font-size:1.15rem;line-height:1;display:inline-grid}.curriculum-history-controls button:disabled{cursor:default;opacity:.28}.curriculum-breadcrumb button{min-width:0;color:var(--black);font:inherit;overflow-wrap:anywhere;text-align:left;text-underline-offset:3px;background:0 0;border:0;padding:0;text-decoration:underline}.curriculum-breadcrumb button:hover,.curriculum-breadcrumb button:focus-visible{color:var(--muted)}.curriculum-breadcrumb button[aria-current=page]{color:var(--muted);cursor:default;text-decoration:none}.curriculum-breadcrumb-label{color:var(--black)}.curriculum-toolbar input,.curriculum-toolbar select{border:1px solid var(--black);background:var(--white);min-height:40px;font:inherit;border-radius:0;padding:7px 10px;font-size:.78rem}.curriculum-toolbar input{flex:1}.curriculum-toolbar-action{border:1px solid var(--black);background:var(--white);min-height:40px;color:var(--black);font:inherit;white-space:nowrap;border-radius:0;padding:7px 11px;font-size:.68rem}.curriculum-toolbar-action.is-primary{background:var(--gold)}.curriculum-toolbar-action:disabled{border-color:var(--muted);background:var(--light-gray);color:var(--muted);cursor:not-allowed;opacity:.72}.curriculum-toolbar-action.is-checking{cursor:wait}.curriculum-builder-overlay{z-index:3000;justify-content:center;align-items:center;width:auto;height:auto;padding:16px;display:flex;position:fixed;inset:0}.curriculum-builder-modal{border:1px solid var(--black);background:var(--white);width:min(1120px,100vw - 32px);max-height:calc(100dvh - 32px);color:var(--black);overflow:scroll}.curriculum-builder-modal>header{z-index:2;border-bottom:1px solid var(--black);background:var(--white);justify-content:space-between;align-items:center;padding:14px 18px;display:flex;position:sticky;top:0}.curriculum-builder-modal h2,.curriculum-builder-modal h3{margin:0}.curriculum-builder-modal>header button{color:inherit;font:inherit;background:0 0;border:0;font-size:1.4rem}.curriculum-builder-content{padding:18px;position:relative}.generation-confirmation{max-width:480px}.curriculum-builder-modal.generation-confirmation-modal{width:min(480px,100vw - 32px);height:auto;max-height:calc(100vh - 32px)}.curriculum-builder-modal.generation-confirmation-modal>header{padding:10px 14px}.curriculum-builder-modal.generation-confirmation-modal>header h2{font-size:.9rem}.curriculum-builder-modal.generation-confirmation-modal .curriculum-builder-content{padding:14px}.generation-confirmation p{color:var(--muted);margin:0 0 14px;font-size:.66rem;line-height:1.5}.generation-confirmation-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.generation-confirmation-actions button{border:1px solid var(--black);background:var(--white);min-height:34px;color:var(--black);font:inherit;padding:6px 10px;font-size:.64rem}.generation-confirmation-actions .btn-primary{background:var(--gold)}.curriculum-builder-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start;gap:12px;display:grid}.curriculum-builder-form label{color:var(--muted);gap:5px;margin-bottom:12px;font-size:.66rem;display:grid}.curriculum-builder-field-error{color:#c22;min-height:1.4em;margin:-7px 0 12px;font-size:.6rem;line-height:1.4}.curriculum-builder-form input,.curriculum-builder-form select,.curriculum-builder-form textarea,.curriculum-source-row input{box-sizing:border-box;border:1px solid var(--black);background:var(--white);width:100%;color:var(--black);font:inherit;border-radius:0;padding:8px;font-size:.72rem}.curriculum-builder-form input,.curriculum-builder-form select{height:48px;min-height:48px}.curriculum-builder-advanced{border:1px solid var(--subtle-border);margin-top:4px;padding:10px 12px}.curriculum-builder-advanced>summary{cursor:pointer;color:var(--black);font-size:.68rem}.curriculum-builder-advanced[open]>summary{margin-bottom:12px}.curriculum-builder-decks-head,.curriculum-builder-actions{justify-content:space-between;align-items:center;gap:12px;margin:14px 0 8px;display:flex}.curriculum-builder-decks-head button,.curriculum-builder-actions button,.curriculum-add-row,.curriculum-source-row button,.curriculum-builder-row-actions button{border:1px solid var(--black);background:var(--white);color:var(--black);font:inherit;border-radius:0;padding:7px 10px;font-size:.66rem}.curriculum-builder-actions{justify-content:flex-end}.curriculum-builder-actions button{background:var(--gold)}.curriculum-builder-launch{text-align:right}.curriculum-builder-modal.curriculum-options-modal{width:min(520px,100vw - 32px)}.curriculum-options-regenerate{width:100%}.curriculum-options-modal .curriculum-builder-errors:empty{display:none}.curriculum-subject-create{width:100%;min-width:0}.curriculum-subject-input-row{min-width:0;display:flex}.curriculum-subject-create .repo-input-field{height:32px}@media (width<=600px),(pointer:coarse){.curriculum-subject-create .repo-input-field{font-size:max(16px,.76rem)}}.curriculum-subject-create .add-repo-btn{background:var(--gold);width:32px;height:32px;padding:0}.curriculum-subject-create .add-repo-btn:hover{background:var(--black)}.curriculum-subject-create [data-subject-errors]:empty,.curriculum-subject-create [data-errors]:empty{display:none}.curriculum-builder-deck{border-bottom:1px solid var(--subtle-border);grid-template-columns:32px minmax(150px,.8fr) minmax(220px,1.4fr) minmax(210px,1fr) auto;align-items:center;gap:7px;padding:7px 0;display:grid}.curriculum-builder-order{color:var(--muted);text-align:center;font-size:.66rem}.curriculum-builder-row-actions{gap:3px;display:inline-flex}.curriculum-builder-errors{color:#c22;min-height:1.4em;margin-top:8px;font-size:.68rem}.curriculum-builder-success code{background:var(--light-gray);padding:12px;display:block;overflow-x:auto}.generation-activity-summary{color:var(--muted);align-self:center;margin:0;font-size:.72rem}.generation-activity-refresh{border:1px solid var(--black);background:var(--white);color:var(--black);font:inherit;border-radius:0;justify-self:end;padding:7px 10px;font-size:.66rem;position:static}.generation-activity-list{grid-column:1/-1;grid-template-columns:minmax(0,1fr);gap:10px;min-width:0;display:grid}.generation-activity-item{overflow-wrap:anywhere;border:1px solid var(--subtle-border);min-width:0;padding:12px}.generation-activity-item-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:14px;display:flex}.generation-activity-item-header>div{flex:220px;min-width:0}.generation-launch-list{gap:12px;margin:16px 0;display:grid}.generation-launch-list section{border:1px solid var(--subtle-border);overflow-wrap:anywhere;padding:12px}.generation-launch-list h3{margin:0 0 8px;font-size:.85rem}.generation-launch-settings{margin:0;font-size:.78rem}.curriculum-builder-modal.generation-launch-modal{width:min(640px,100vw - 32px)}.global-curriculum-fields{gap:12px;min-width:0;display:grid}.generation-launch-subjects{margin:10px 0 0;font-size:.7rem}.global-curriculum-fields label{gap:6px;min-width:0;font-size:.7rem;display:grid}.global-curriculum-fields textarea{box-sizing:border-box;resize:vertical;width:100%;min-width:0;max-width:100%;font:inherit;border:1px solid var(--black);background:var(--white);color:var(--black);padding:10px;font-size:max(16px,.7rem);line-height:1.4;display:block}.global-curriculum-hint{color:var(--muted);margin:0;font-size:.6rem}.curriculum-graph-node.is-dag-added{box-shadow:inset 0 0 0 3px #27804b}.curriculum-graph-node.is-dag-removed{box-shadow:inset 0 0 0 3px #b83a3a}.curriculum-graph-node.is-dag-changed{box-shadow:inset 0 0 0 3px #886b13}.generation-activity-item h3{font-size:.82rem}.generation-activity-item p{color:var(--muted);margin:5px 0 0;font-size:.62rem}.generation-activity-command{color:var(--muted);white-space:pre-wrap;overflow-wrap:anywhere;margin-top:8px;font-size:.62rem;display:block}.generation-activity-status{border:1px solid var(--black);white-space:nowrap;flex:none;padding:4px 7px;font-size:.58rem}.generation-activity-status.is-queued,.generation-activity-status.is-running{background:var(--gold)}.generation-activity-status.is-needs-review{background:#fff5c7}.generation-activity-status.is-failed{color:#c22;border-color:#c22}.generation-activity-status.is-published,.generation-activity-status.is-cancelled{color:var(--muted)}.generation-activity-actions,.curriculum-preview-banner>div{flex-wrap:wrap;gap:7px;margin-top:10px;display:flex}.generation-activity-actions button,.generation-activity-actions a,.curriculum-preview-banner button,.curriculum-preview-banner a{border:1px solid var(--black);background:var(--white);color:var(--black);font:inherit;border-radius:0;align-items:center;padding:7px 10px;font-size:.64rem;text-decoration:none;display:inline-flex}.generation-activity-error,.generation-activity-item .generation-activity-error{color:#c22}.generation-activity-error:empty{display:none}.generation-activity-actions>:is(button,a){white-space:normal;overflow-wrap:anywhere;min-width:0;max-width:100%}.curriculum-preview-banner{border:1px solid var(--black);background:var(--white);grid-template-columns:minmax(0,1fr);gap:14px;margin:-3px 0 14px;padding:10px 12px;display:grid}.curriculum-preview-banner p{margin:0;font-size:.66rem}.curriculum-preview-banner>div{margin:0}.curriculum-preview-banner>section{min-width:0}.curriculum-preview-meta{overflow-wrap:anywhere}.curriculum-preview-meta p+p{margin-top:3px}.curriculum-preview-banner .curriculum-preview-actions{grid-template-columns:1fr 1.2fr .8fr .8fr;gap:6px;width:100%;max-width:420px;display:grid}.curriculum-preview-actions button{justify-content:center;min-width:0;padding:8px 4px;font-size:clamp(11px,3vw,14px)}.curriculum-preview-actions .generation-activity-error{grid-column:1/-1}.curriculum-preview-actions button:disabled{opacity:.45;cursor:not-allowed}.curriculum-preview-issues{overflow-wrap:anywhere;font-size:.85rem}.curriculum-preview-issues ul{max-height:16rem;padding-left:1.4em;overflow-y:auto}.curriculum-preview-banner button[aria-pressed=true]{background:var(--black);color:var(--white)}.curriculum-preview-diff{gap:8px;display:grid}.curriculum-diff-counts{align-items:center;gap:8px;font-size:.66rem;display:flex}.curriculum-diff-counts>span{min-width:7ch}.curriculum-preview-banner .curriculum-diff-toggle{font-size:inherit;padding:4px 6px}.curriculum-diff-toggle:after{content:" ▸"}.curriculum-diff-toggle[aria-expanded=true]:after{content:" ▾"}.curriculum-diff-toggle:disabled:after{content:""}.curriculum-preview-diff .is-added{color:#187443}.curriculum-preview-diff .is-removed{color:#b42318}.curriculum-preview-diff .is-changed{color:#886009}:root[data-theme=dark] .curriculum-preview-diff .is-added{color:#74d69c}:root[data-theme=dark] .curriculum-preview-diff .is-removed{color:#ff9691}:root[data-theme=dark] .curriculum-preview-diff .is-changed{color:#e7c66a}.curriculum-diff-list{overscroll-behavior:contain;overflow-wrap:anywhere;border:1px solid;max-height:240px;margin:8px 0 0;padding:8px;font-size:.64rem;list-style:none;overflow:auto}.curriculum-diff-list li+li{margin-top:6px}.curriculum-source-row{grid-template-columns:auto 1fr 180px auto;align-items:center;gap:8px;margin-bottom:8px;display:grid}@media (width<=760px){.study-settings-pane.generation-activity-settings{grid-template-columns:minmax(0,1fr)}.generation-activity-refresh{justify-self:start}.generation-activity-list{grid-column:1}.curriculum-builder-grid{grid-template-columns:1fr}.curriculum-builder-deck{grid-template-columns:28px 1fr auto}.curriculum-builder-deck>input:nth-of-type(2),.curriculum-builder-deck>input:nth-of-type(3){grid-column:2/-1}.curriculum-source-row{grid-template-columns:auto 1fr auto}.curriculum-source-row input:nth-of-type(3){grid-column:2}}@media (width<=600px){.study-settings-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.study-settings-tabs button{overflow-wrap:normal}.study-settings-tabs button:nth-child(2n){border-right:0}}.curriculum-summary{color:var(--muted);margin-bottom:12px;font-size:.72rem}.curriculum-directory{border-top:1px solid var(--black);border-left:1px solid var(--black);grid-template-columns:repeat(auto-fill,minmax(260px,1fr));display:grid}.curriculum-explorer-item{border:0;border-right:1px solid var(--black);border-bottom:1px solid var(--black);background:var(--white);width:100%;color:var(--black);text-align:left;font:inherit;padding:12px 14px;display:block}.curriculum-explorer-item:hover,.curriculum-explorer-item:focus-visible{background:color-mix(in srgb, var(--gold) 17%, var(--white))}.curriculum-explorer-item-name,.curriculum-explorer-item-meta{display:block}.curriculum-explorer-item-name{overflow-wrap:anywhere;font-size:.76rem;line-height:1.35}.curriculum-explorer-item-meta{color:var(--muted);margin-top:5px;font-size:.58rem;line-height:1.4}.curriculum-neighborhood{scrollbar-gutter:stable;scrollbar-color:var(--muted) var(--light-gray);scrollbar-width:auto;border:1px solid var(--black);background-color:var(--white);background-image:linear-gradient(to right, var(--subtle-border) 1px, transparent 1px), linear-gradient(to bottom, var(--subtle-border) 1px, transparent 1px);isolation:isolate;background-size:28px 28px;grid-template-columns:repeat(3,minmax(0,1fr));align-items:stretch;height:clamp(480px,68dvh,760px);display:grid;position:relative;overflow:hidden auto}.curriculum-neighborhood-column{z-index:1;min-width:0;display:block;position:relative;overflow:visible}.curriculum-neighborhood-scroll{overflow:visible}.curriculum-neighborhood::-webkit-scrollbar{width:11px}.curriculum-neighborhood::-webkit-scrollbar-track{background:var(--light-gray);border-left:1px solid var(--subtle-border)}.curriculum-neighborhood::-webkit-scrollbar-thumb{border:2px solid var(--light-gray);background:var(--muted)}.curriculum-neighborhood-column>h3{z-index:3;background:var(--white);letter-spacing:.07em;text-transform:uppercase;margin:0;padding:12px 18px 8px;font-size:.62rem;font-weight:500;position:sticky;top:0}.curriculum-neighborhood-column>h3 span{float:right;color:var(--muted);font-weight:400}.curriculum-neighborhood-column>h3.curriculum-selected-header{padding:12px 18px 8px;display:block}.curriculum-selected-header>span{text-align:left;text-overflow:ellipsis;white-space:nowrap;overflow:hidden;float:none!important;color:var(--black)!important;font-weight:500!important}.curriculum-neighborhood-scroll>h4,.curriculum-interdependent h4,.curriculum-cycle-warning h4{color:var(--muted);letter-spacing:.07em;text-transform:uppercase;margin:0;padding:12px 12px 7px;font-size:.58rem;font-weight:500}.curriculum-neighborhood-column .curriculum-explorer-item{border:1px solid var(--black);border-left:4px solid var(--muted);width:calc(100% - 36px);margin:8px 18px}.curriculum-neighborhood-column.is-selected{background:0 0}.curriculum-selected-spacer{visibility:hidden;-webkit-user-select:none;user-select:none}.curriculum-selected-item.is-openable{cursor:pointer}.curriculum-mobile-relation-tabs button{border:1px solid var(--black);background:var(--white);min-height:34px;color:var(--black);font:inherit;border-radius:0;padding:6px 9px;font-size:.62rem}.curriculum-mobile-relation-tabs button.active{background:var(--gold)}.curriculum-interdependent,.curriculum-cycle-warning{border:1px solid var(--black);background:var(--white);margin-top:18px}.curriculum-interdependent>p,.curriculum-cycle-warning>p{color:var(--muted);margin:0;padding:0 12px 12px;font-size:.6rem;line-height:1.5}.curriculum-cycle-warning{border-color:#c22}.curriculum-explorer-empty{color:var(--muted);margin:0;padding:18px 12px;font-size:.66rem;line-height:1.5}.curriculum-mobile-relation-tabs{display:none}.curriculum-recommended-toggle{border:1px solid var(--black);background:var(--white);min-height:40px;color:var(--black);white-space:nowrap;align-items:center;gap:7px;padding:0 10px;font-size:.68rem;display:inline-flex}.curriculum-recommended-toggle input{min-height:auto;margin:0;padding:0}.curriculum-graph-controls{border:1px solid var(--black);background:var(--light-gray);border-bottom:0;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:16px;min-height:42px;padding:5px 8px;display:grid}.curriculum-graph-legend,.curriculum-graph-legend>span,.curriculum-graph-primary-actions,.curriculum-graph-navigation,.curriculum-graph-view-actions{align-items:center;display:inline-flex}.curriculum-graph-primary-actions{flex-wrap:wrap;grid-column:1;justify-self:start;gap:6px;width:100%;min-width:0;max-width:100%}.curriculum-graph-primary-actions .curriculum-toolbar-action{white-space:normal;max-width:100%;min-height:30px;padding:5px 10px}.curriculum-graph-legend{color:var(--muted);gap:15px;font-size:.64rem}.curriculum-graph-legend>span{gap:6px}.curriculum-graph-legend i{border-top:2px solid var(--muted);width:28px;height:0;display:inline-block}.curriculum-graph-legend i.recommended{border-top-style:dashed;border-top-color:var(--gold)}.curriculum-graph-navigation{grid-column:2;justify-content:center;justify-self:center;gap:6px}.curriculum-graph-view-actions{grid-column:3;justify-self:end}.curriculum-layer-label{min-width:150px;color:var(--muted);text-align:center;font-size:.64rem}.curriculum-graph-view-actions button,.curriculum-graph-navigation button{border:1px solid var(--black);background:var(--white);min-width:34px;min-height:30px;color:var(--black);font:inherit;font-size:.68rem}.curriculum-graph-view-actions button{min-width:52px;padding-inline:14px}.curriculum-graph-view-actions button:hover,.curriculum-graph-view-actions button:focus-visible,.curriculum-graph-navigation button:hover,.curriculum-graph-navigation button:focus-visible{color:var(--muted)}.curriculum-graph-navigation button:disabled{cursor:not-allowed;opacity:.35}.curriculum-graph-stage{scrollbar-gutter:stable;border:1px solid var(--black);background-color:var(--white);background-image:linear-gradient(to right, var(--subtle-border) 1px, transparent 1px), linear-gradient(to bottom, var(--subtle-border) 1px, transparent 1px);touch-action:pan-x pan-y;-webkit-user-select:none;user-select:none;background-size:28px 28px;height:clamp(480px,68dvh,760px);position:relative;overflow:auto}.curriculum-graph-stage.is-layered{touch-action:pan-y;overscroll-behavior-y:contain;overflow:hidden scroll}.curriculum-graph-stage.is-subject-overview{cursor:grab;touch-action:none;overflow:hidden}.curriculum-graph-stage.is-subject-overview.is-panning{cursor:grabbing}.curriculum-graph-stage.is-subject-overview .curriculum-graph-node{cursor:pointer}.curriculum-graph-scroll-canvas{min-width:100%;min-height:100%;position:relative}.curriculum-graph-stage.is-layered .curriculum-graph-scroll-canvas{overflow:clip}.curriculum-graph-viewport{transform-origin:0 0;will-change:transform;position:absolute;top:0;left:0}.curriculum-graph-edges{pointer-events:none;position:absolute;inset:0;overflow:visible}.curriculum-graph-connection{color:var(--muted);opacity:.3;transition:color .12s,opacity .12s}.curriculum-graph-edge{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;transition:stroke-width .12s}.curriculum-graph-connection.is-cable-trunk .curriculum-graph-edge-highlight{opacity:0}.curriculum-graph-connection.is-cable-trunk.is-related .curriculum-graph-edge:not(.curriculum-graph-edge-highlight){opacity:.25}.curriculum-graph-connection.is-cable-trunk.is-related .curriculum-graph-edge-highlight{opacity:1}.curriculum-graph-arrowhead{fill:currentColor}.curriculum-graph-connection.is-recommended{color:var(--gold);opacity:.36}.curriculum-graph-connection.is-recommended .curriculum-graph-edge{stroke-dasharray:8 7}.curriculum-graph-connection.is-primary .curriculum-graph-edge{stroke-width:2.3px}.curriculum-graph-stage.is-dense .curriculum-graph-connection{opacity:.18}.curriculum-graph-stage.is-dense .curriculum-graph-connection.is-recommended{opacity:.22}.curriculum-graph-stage .curriculum-graph-connection.is-dimmed,.curriculum-graph-stage .curriculum-graph-node.is-dimmed{opacity:.045}.curriculum-graph-connection.is-related{color:var(--muted)}.curriculum-graph-node{border:1px solid var(--black);border-left:4px solid var(--muted);background:var(--white);color:var(--black);text-align:left;font:inherit;flex-direction:column;justify-content:center;align-items:flex-start;gap:4px;padding:10px;font-weight:400;transition:opacity .12s,border-color .12s,background .12s;display:flex;position:absolute;overflow:hidden}.curriculum-graph-node.is-learning,.curriculum-explorer-item.is-learning{border-left-color:var(--gold)}.curriculum-graph-node.is-complete,.curriculum-explorer-item.is-complete{border-left-color:#30964b}.curriculum-graph-node.is-match{background:color-mix(in srgb, var(--gold) 10%, var(--white))}.curriculum-graph-node.is-target{background:color-mix(in srgb, var(--gold) 20%, var(--white));border-width:2px 2px 2px 5px}.curriculum-graph-node:hover,.curriculum-graph-node:focus-visible,.curriculum-graph-node.is-related{z-index:2;border-top-color:var(--black);border-right-color:var(--black);border-bottom-color:var(--black);background:var(--white)}.curriculum-graph-node-subject,.curriculum-graph-node-status{color:var(--muted);font-size:.52rem;font-weight:400;line-height:1.2}.curriculum-graph-node-subject{letter-spacing:.08em;text-transform:uppercase}.curriculum-graph-node-name{overflow-wrap:anywhere;white-space:normal;width:100%;margin:0;font-size:.66rem;font-weight:400;line-height:1.2;display:block}.curriculum-graph-stage.is-compact .curriculum-graph-node-name{font-size:14px}.curriculum-graph-stage.is-compact .curriculum-graph-node-subject,.curriculum-graph-stage.is-compact .curriculum-graph-node-status,.curriculum-graph-stage.is-compact.is-layered .curriculum-graph-node-name{font-size:11px}.curriculum-graph-stage.is-compact.is-layered .curriculum-graph-node-subject{overflow-wrap:anywhere;max-width:100%}.curriculum-graph-stage.is-compact.is-layered .curriculum-graph-node-subject,.curriculum-graph-stage.is-compact.is-layered .curriculum-graph-node-status{font-size:9px}.curriculum-graph-stage.is-subject-overview .curriculum-graph-node-name{width:auto;font-size:26px}.curriculum-graph-stage.is-subject-overview .curriculum-graph-node{text-align:center;align-items:center;padding:12px}.curriculum-graph-stage.is-measuring{visibility:hidden;height:auto;position:fixed;left:-10000px}.curriculum-graph-stage.is-measuring .curriculum-graph-node{height:auto;position:static}.curriculum-graph-stage.is-subject-overview .curriculum-graph-node-status{font-size:16px}.curriculum-graph-empty{border:1px solid var(--black);min-height:220px}.curriculum-chapter-empty{border:1px solid var(--black);background:var(--white);text-align:center;align-content:center;justify-items:center;gap:14px;min-height:220px;padding:32px 24px;display:grid}.curriculum-chapter-empty h2{margin:0;font-size:.78rem;font-weight:500;line-height:1.4}.curriculum-chapter-empty-action{min-height:34px;padding:6px 14px;font-size:.64rem;display:inline-flex}.curriculum-map{border:1px solid var(--black)}.curriculum-subject{border-bottom:3px solid var(--black)}.curriculum-subject:last-child{border-bottom:0}.curriculum-subject-title{z-index:1;border-bottom:1px solid var(--black);background:var(--light-gray);letter-spacing:.08em;text-transform:uppercase;padding:7px 10px;font-size:.7rem;position:sticky;top:0}.curriculum-node{border:0;border-bottom:1px solid var(--subtle-border);background:var(--white);width:100%;color:var(--black);text-align:left;font:inherit;grid-template-columns:minmax(220px,.9fr) minmax(280px,1.3fr) minmax(260px,1fr);align-items:start;gap:16px;padding:11px 12px;display:grid}.curriculum-node:last-child{border-bottom:0}.curriculum-node:hover,.curriculum-node:focus-visible{background:color-mix(in srgb, var(--gold) 17%, var(--white))}.curriculum-node-name{overflow-wrap:anywhere;font-size:.8rem}.curriculum-node-meta,.curriculum-node-description,.curriculum-node-edges{color:var(--muted);font-size:.68rem}.curriculum-node-status{color:var(--black);margin-right:8px;display:inline-block}.dependency-modal-content{width:min(720px,100vw - 28px);max-height:min(780px,100dvh - 28px)}.dependency-modal-content .modal-header{align-items:flex-start;gap:16px}.dependency-heading{flex:1;min-width:0}.dependency-heading .card-browser-path{max-width:100%;display:block}.dependency-heading h3{overflow-wrap:anywhere}.dependency-modal-content .modal-close{flex:none}.dependency-body{overflow-y:auto}.dependency-section+.dependency-section{margin-top:22px}.dependency-section h4{letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px;font-size:.72rem}.dependency-chain{border-left:3px solid var(--gold)}.dependency-item{border-bottom:1px solid var(--subtle-border);padding:9px 12px}.dependency-item:last-child{border-bottom:0}.dependency-item-name{overflow-wrap:anywhere;font-size:.78rem}.dependency-item-meta{color:var(--muted);margin-top:2px;font-size:.66rem}.dependency-command{color:var(--black);white-space:nowrap;margin-top:5px;font-size:.66rem;display:block;overflow-x:auto}.dependency-generation-note{color:var(--muted);margin:0;font-size:.72rem;line-height:1.5}.dependency-empty{color:var(--muted);font-size:.75rem}.dependency-footer{flex-wrap:wrap}.deck-actions-modal-content{width:min(560px,100vw - 28px);max-height:min(720px,100dvh - 28px)}.deck-actions-modal-content .modal-header{align-items:flex-start;gap:16px}.deck-actions-heading{flex:1;min-width:0}.deck-actions-heading h3{overflow-wrap:anywhere}.deck-actions-body{gap:8px;display:grid;overflow-y:auto}.deck-action-button{border:1px solid var(--black);background:var(--white);width:100%;color:var(--black);cursor:pointer;text-align:left;padding:13px 14px;font-family:IBM Plex Mono,monospace}.deck-action-button:hover,.deck-action-button:focus-visible{background:var(--light-gray);outline:2px solid var(--gold);outline-offset:1px}.deck-action-button:disabled{cursor:wait;opacity:.55}.deck-action-label{font-size:.78rem;display:block}.deck-action-description{color:var(--muted);margin-top:3px;font-size:.65rem;line-height:1.45;display:block}.deck-action-button.danger{border-color:#b00020}.deck-action-button.danger .deck-action-label{color:#b00020}@media (width<=760px){.curriculum-toolbar{flex-direction:column}.curriculum-neighborhood{scrollbar-gutter:auto;flex-direction:column;height:clamp(360px,70dvh,760px);display:flex;overflow:hidden}.curriculum-neighborhood-column{flex-direction:column;min-height:0;display:flex;overflow:hidden}.curriculum-neighborhood-scroll{overscroll-behavior-y:contain;touch-action:pan-y;flex:1;min-height:0;padding-bottom:12px;overflow:hidden auto}.curriculum-neighborhood-column>h3{flex-shrink:0;position:static}.curriculum-neighborhood-column+.curriculum-neighborhood-column,.curriculum-neighborhood-column.is-unlocks{border-left:0}.curriculum-neighborhood-column.is-selected{border-bottom:1px solid var(--black);flex:0 auto;order:1;max-height:40%}.curriculum-selected-spacer{display:none}.curriculum-mobile-relation-tabs{border-bottom:1px solid var(--black);flex-shrink:0;order:2;grid-template-columns:1fr 1fr;display:grid}.curriculum-mobile-relation-tabs button{border:0;min-height:42px}.curriculum-mobile-relation-tabs button+button{border-left:1px solid var(--black)}.curriculum-neighborhood-column.is-prerequisites,.curriculum-neighborhood-column.is-unlocks{flex:1;order:3;display:none}.curriculum-neighborhood-column.is-mobile-active{display:flex}.curriculum-recommended-toggle{width:100%}.curriculum-graph-stage{height:62dvh;min-height:96px}.curriculum-graph-controls{grid-template-columns:minmax(0,1fr) auto;gap:6px}.curriculum-graph-primary-actions{grid-area:1/1}.curriculum-graph-navigation{grid-area:2/1/auto/-1;justify-self:stretch}.curriculum-graph-view-actions{grid-area:1/2}.curriculum-layer-label{min-width:0}.curriculum-node{grid-template-columns:1fr;gap:4px}.dependency-modal-content{border:0;width:100vw;height:100dvh;max-height:100dvh}.deck-actions-modal-content{width:calc(100vw - 24px);max-height:calc(100dvh - 24px)}}.card-editor-content{flex-direction:column;width:90vw;max-width:1000px;max-height:90vh;display:flex}.card-type-tabs{border-bottom:1px solid var(--black);background:var(--light-gray);gap:0;padding:0 20px;display:flex}.card-type-tab{cursor:pointer;color:var(--black);opacity:.6;background:0 0;border:none;border-bottom:2px solid #0000;padding:12px 24px;font-family:IBM Plex Mono,monospace;font-size:14px;transition:opacity .2s,border-color .2s}.card-type-tab:hover{opacity:.8}.card-type-tab.active{opacity:1;border-bottom-color:var(--gold);font-weight:600}.editor-layout{flex:1;min-height:0;display:flex;overflow:hidden}.editor-pane{border-right:1px solid #e0e0e0;flex:1;padding:20px;overflow-y:auto}.preview-pane{background:var(--light-gray);flex-direction:column;flex:1;display:flex}.preview-header{text-transform:uppercase;letter-spacing:1px;color:#666;border-bottom:1px solid #e0e0e0;justify-content:space-between;align-items:center;padding:12px 20px;font-size:12px;display:flex}.preview-toggle{background:var(--white);border:1px solid var(--black);cursor:pointer;padding:4px 12px;font-family:IBM Plex Mono,monospace;font-size:11px;transition:background .2s}.preview-toggle:hover{background:var(--black);color:var(--white)}.preview-content{flex:1;padding:20px;font-size:14px;line-height:1.7;overflow-y:auto}.preview-placeholder{color:#999;font-style:italic}.preview-error{color:#c00;font-size:12px}.form-group{margin-bottom:16px}.form-group label{text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px;font-size:12px;font-weight:600;display:block}.form-textarea{border:1px solid var(--black);resize:vertical;background:var(--white);width:100%;padding:12px;font-family:IBM Plex Mono,monospace;font-size:14px;line-height:1.6}.form-textarea:focus{outline:none;box-shadow:0 0 0 2px #f5c8424d}.form-textarea::placeholder{color:#999;font-size:13px}.form-input{border:1px solid var(--black);background:var(--white);width:100%;padding:10px 12px;font-family:IBM Plex Mono,monospace;font-size:14px}.form-input:focus{outline:none;box-shadow:0 0 0 2px #f5c8424d}.form-hint{color:#666;margin-top:4px;font-size:11px}.form-error{color:#c00;background:#fff0f0;border:1px solid #fcc;margin:0 20px 15px;padding:10px 15px;font-size:13px}.form-info{border-left:3px solid var(--gold);background:#f5c8421a;margin-bottom:16px;padding:12px 15px;font-size:13px}.form-info p{margin:0}.cloze-hint{color:#666;text-transform:none;letter-spacing:normal;margin-left:8px;font-size:11px;font-weight:400}.cloze-toolbar{background:var(--black);z-index:100;border-radius:4px;margin-top:-40px;padding:4px;position:absolute}.cloze-toolbar-btn{background:var(--gold);cursor:pointer;border:none;border-radius:2px;padding:6px 12px;font-family:IBM Plex Mono,monospace;font-size:12px}.cloze-toolbar-btn:hover{background:#e0b83a}.cloze-count{color:#666;margin-top:6px;font-size:11px}.file-path-group{margin-bottom:0;padding:0 20px}.file-path-group label{font-size:11px}.file-path-group .form-input{padding:8px 10px;font-size:12px}.card-editor-content .modal-footer{border-top:1px solid var(--black);align-items:center;gap:10px;padding:15px 20px;display:flex}.footer-spacer{flex:1}.btn-danger{color:#c00;cursor:pointer;background:#fff0f0;border:1px solid #c00;padding:10px 20px;font-family:IBM Plex Mono,monospace;font-size:14px;transition:background .2s,color .2s}.btn-danger:hover{color:var(--white);background:#c00}.btn-danger:disabled{opacity:.5;cursor:not-allowed}.preview-content .preview-question,.preview-content .preview-problem{margin-bottom:0}.preview-content .answer-separator{border-top:1px dashed #ccc;margin-top:20px;padding-top:15px}.preview-content .cloze{background:var(--gold);color:var(--black);border-radius:2px;padding:2px 8px}.preview-content .cloze-reveal{background:var(--gold);color:var(--black);border-radius:2px;padding:2px 8px;font-weight:700}@media (width<=768px){.card-editor-content{width:95vw;max-height:95vh}.editor-layout{flex-direction:column}.editor-pane{border-bottom:1px solid #e0e0e0;border-right:none;max-height:50vh}.preview-pane{max-height:40vh}.card-type-tabs{overflow-x:auto}}.deck-creator-content,.folder-creator-content{width:90vw;max-width:450px}.deck-action-bar{gap:10px;margin-bottom:20px;display:flex}.btn-action{background:var(--white);color:var(--black);border:1px solid var(--black);cursor:pointer;align-items:center;gap:6px;padding:8px 16px;font-family:IBM Plex Mono,monospace;font-size:12px;transition:background .2s,color .2s;display:flex}.btn-action:hover{background:var(--black);color:var(--white)}.btn-action .icon{font-size:14px}.card-edit-btn{background:var(--white);border:1px solid var(--black);cursor:pointer;justify-content:center;align-items:center;width:32px;height:32px;padding:6px;font-family:IBM Plex Mono,monospace;transition:opacity .15s;display:flex}.card-edit-btn:hover{opacity:.6}.card-edit-btn img,.card-edit-btn svg{width:16px;height:16px;display:block}
