[hidden]{display:none!important}:root{--bg:#f4f7f9;--panel:#fff;--ink:#203040;--muted:#66788a;--line:#d8e1e8;--primary:#245b86;--primary-soft:#e1edf5;--green:#2f7657;--green-soft:#e2f1e8;--danger:#a13d3d;--shadow:0 7px 24px rgba(25,48,69,.07)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,Segoe UI,Arial,sans-serif}button,.button-like,input,select,textarea{font:inherit}button,.button-like{border:1px solid var(--line);background:#fff;color:var(--ink);padding:.58rem .78rem;border-radius:.55rem;cursor:pointer}.primary{background:var(--primary);border-color:var(--primary);color:#fff}.green-primary{background:var(--green);border-color:var(--green);color:#fff}.danger{color:var(--danger)}.link-button{border:0;background:transparent;padding:0;text-decoration:underline;color:var(--primary)}label{display:flex;flex-direction:column;gap:.32rem;font-size:.84rem;font-weight:650;color:#34495e}input,select,textarea{width:100%;border:1px solid #c8d3dc;border-radius:.5rem;padding:.55rem .62rem;background:#fff;color:var(--ink)}textarea{resize:vertical}input:focus,select:focus,textarea:focus{outline:2px solid color-mix(in srgb,var(--primary) 30%,transparent);border-color:var(--primary)}.panel{background:var(--panel);border:1px solid var(--line);border-radius:.85rem;box-shadow:var(--shadow)}.topbar{display:flex;align-items:center;gap:1rem;padding:1rem 1.4rem;background:#173f61;color:#fff;position:sticky;top:0;z-index:30}.brand{min-width:230px}.brand h1{font-size:1.28rem;margin:0}.brand p{margin:.2rem 0 0;font-size:.82rem;opacity:.82}.master-switch{display:flex;background:#ffffff1a;padding:.25rem;border-radius:.72rem}.master-switch button{border:0;background:transparent;color:#fff}.master-switch button.active{background:#fff;color:#173f61}.year-switcher{color:#fff;margin-left:auto;min-width:155px}.year-switcher select{margin-top:.2rem}.top-actions{display:flex;gap:.5rem}.topbar .top-actions button{border-color:#ffffff4d}.topbar .primary{background:#fff;color:#173f61}.icon-btn{font-size:1.18rem;padding:.45rem .62rem;background:#ffffff1f;color:#fff}main{padding:1.15rem 1.4rem 3rem}.main-tabs{display:flex;gap:.45rem;flex-wrap:wrap;margin-bottom:1rem}.main-tabs button.active{background:var(--primary);border-color:var(--primary);color:#fff}.green-tabs button.active{background:var(--green);border-color:var(--green)}.view,.management-view{display:none}.view.active,.management-view.active{display:block}.section-header{display:flex;justify-content:space-between;gap:1rem;align-items:center;margin:.4rem 0 .85rem}.section-header h2,.section-header h3{margin:0}.section-header p{margin:.25rem 0 0;color:var(--muted)}.compact-head{align-items:flex-start}.toolbar,.week-toolbar,.management-toolbar,.library-toolbar{display:flex;gap:.8rem;align-items:end;flex-wrap:wrap;padding:.85rem;margin-bottom:.85rem}.week-toolbar strong{margin-left:auto}.summary-grid{display:grid;grid-template-columns:repeat(4,minmax(130px,1fr));gap:.75rem;margin:.75rem 0}.summary-card{padding:.85rem 1rem}.summary-card strong{display:block;font-size:1.35rem}.summary-card span{font-size:.8rem;color:var(--muted)}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:.82rem}th,td{padding:.58rem .65rem;border-bottom:1px solid #e9eef2;vertical-align:top}th{position:sticky;top:0;background:#edf3f7;color:#29465e;text-align:left;white-space:nowrap;z-index:2}.session-row{background:linear-gradient(90deg,var(--row-status) 0 7px,var(--row-type) 7px 13px,#fff 13px)}.session-row:hover{filter:brightness(.985)}.manual-row td:first-child{box-shadow:inset 4px 0 #e6a43e}.today-row{outline:3px solid #2b78c5;outline-offset:-3px}.content-cell{min-width:290px}.content-cell small{display:block;color:var(--muted);margin-top:.28rem}.pill{display:inline-block;background:var(--pill-bg);border:1px solid rgba(0,0,0,.09);border-radius:999px;padding:.23rem .48rem;white-space:nowrap}.pin-control{display:inline-flex;flex-direction:row;align-items:center}.pin-control input{width:auto}.pin-date{min-width:135px}.icons-cell{font-size:1.15rem}.homework-indicator{display:inline-block;background:#fff3ce;border-radius:.45rem;padding:.35rem}.class-card,.calendar-collection{padding:1rem;margin-bottom:.85rem}.class-head,.collection-head{display:flex;justify-content:space-between;gap:1rem}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.form-grid.three{grid-template-columns:repeat(3,minmax(160px,1fr))}.schedule-row{display:grid;grid-template-columns:120px 105px 18px 105px minmax(230px,1fr) minmax(160px,1fr) 40px;gap:.45rem;align-items:center;background:#f7fafc;border-radius:.65rem;padding:.55rem;margin:.55rem 0}.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:.75rem}.rotation-card{padding:.85rem}.program-layout{display:grid;grid-template-columns:minmax(260px,340px) 1fr;gap:1rem;margin-bottom:1.2rem}.program-list-panel,.program-editor-panel{padding:1rem;min-height:360px}.program-summary{width:100%;display:flex;flex-direction:column;text-align:left;margin:.35rem 0}.program-summary span{font-size:.78rem;color:var(--muted);margin-top:.25rem}.program-summary.selected{border-color:var(--primary);background:var(--primary-soft)}.program-summary.annual{border-left:4px solid #6e8494}.theme-ref-list{display:grid;gap:.5rem;margin:1rem 0}.theme-ref-row{display:grid;grid-template-columns:1fr auto auto auto auto auto;gap:.35rem;align-items:center;border:1px solid var(--line);border-radius:.62rem;padding:.55rem}.add-theme-row{display:flex;gap:.5rem}.theme-library-grid{display:grid;gap:.75rem}.theme-summary{display:flex;justify-content:space-between;gap:1rem;padding:.9rem}.theme-summary h3{margin:0}.theme-summary p{color:var(--muted)}.theme-stats{font-size:.8rem;color:var(--muted)}.chapter-editor{border:1px solid var(--line);border-left:5px solid var(--primary);border-radius:.7rem;padding:.7rem;margin:.7rem 0}.sequence-editor{background:#f7fafc;border-radius:.65rem;padding:.6rem;margin:.55rem 0}.module-head{display:flex;gap:.4rem;align-items:center}.module-head>input[type=text],.module-head>input:not([type]){flex:1}.item-editor-list{display:grid;gap:.4rem;margin-top:.55rem}.item-editor-row{display:grid;grid-template-columns:auto 130px minmax(200px,1.3fr) minmax(180px,1fr) auto auto auto;gap:.35rem;align-items:center;background:#fff;border:1px solid var(--line);border-radius:.55rem;padding:.45rem}.collection-actions,.resource-actions,.button-row{display:flex;gap:.45rem;flex-wrap:wrap;align-items:center}.source-badge,.resource-category{font-size:.78rem;color:var(--muted);background:#eef3f6;padding:.3rem .45rem;border-radius:999px}.resource-card{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1rem;margin-bottom:.65rem}.resource-card h3{margin:.35rem 0}.resource-card p{margin:.25rem 0;color:var(--muted)}.import-grid{display:grid;grid-template-columns:1fr 1fr;gap:.85rem}.import-card{padding:1rem}.ai-prompt{width:100%;min-height:520px;margin-top:.85rem;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre;overflow:auto}.help-content{padding:1rem;margin-top:.85rem}.empty-state{padding:2rem;text-align:center;color:var(--muted)}dialog{border:0;border-radius:1rem;box-shadow:0 25px 90px #00000047;width:min(620px,95vw);max-height:92vh;overflow:auto}dialog::backdrop{background:#0f1c2a85}.wide-dialog{width:min(1240px,97vw)}.settings-dialog{width:min(760px,95vw)}.dialog-head{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem}.dialog-head h3{margin:0}.dialog-head p{margin:.25rem 0;color:var(--muted)}.dialog-head>button{border:0;font-size:1.5rem}.dialog-tabs,.settings-tabs{display:flex;gap:.4rem;border-bottom:1px solid var(--line);margin:.8rem 0}.dialog-tabs button,.settings-tabs button{border:0;border-bottom:3px solid transparent;border-radius:0}.dialog-tabs button.active,.settings-tabs button.active{border-color:var(--primary);color:var(--primary)}.dialog-tab,.settings-tab-content{display:none}.dialog-tab.active,.settings-tab-content.active{display:block}.dialog-actions{display:flex;justify-content:flex-end;gap:.55rem;margin-top:1rem}.radio,.checkbox-row{display:flex;flex-direction:row;align-items:center;gap:.4rem}.radio input,.checkbox-row input{width:auto}.checkbox-row small{font-weight:400;color:var(--muted)}fieldset{border:1px solid var(--line);border-radius:.65rem;margin:.75rem 0}.icon-choices{display:flex;gap:.45rem;flex-wrap:wrap}.icon-choice input{display:none}.icon-choice span{font-size:1.4rem;border:2px solid transparent;border-radius:.5rem;padding:.35rem;cursor:pointer}.icon-choice input:checked+span{border-color:var(--primary);background:var(--primary-soft)}.work-board{display:grid;grid-template-columns:repeat(5,minmax(210px,1fr));gap:.7rem;overflow-x:auto;padding:.2rem}.work-column{padding:.7rem;min-height:330px}.work-column header{display:flex;flex-direction:column;margin-bottom:.55rem}.work-zone{min-height:95px;border:1px dashed #9eacb8;border-radius:.65rem;padding:.45rem;display:grid;gap:.42rem;align-content:start}.done-zone{background:color-mix(in srgb,var(--primary) 8%,white)}.future-zone{min-height:260px}.work-divider{text-align:center;font-size:.7rem;font-weight:700;color:var(--muted);margin:.45rem 0}.zone-title{font-size:.75rem;color:var(--muted)}.work-task{display:flex;justify-content:space-between;gap:.5rem;align-items:flex-start;background:#fff;border:1px solid #cbd5dd;border-left:5px solid var(--primary);border-radius:.6rem;padding:.5rem;cursor:grab}.work-task small{display:block;color:var(--muted);margin-top:.2rem}.work-task.dragging{opacity:.45}.work-task.locked{cursor:not-allowed;border-left-color:#d08a35}.split-item{padding:.25rem}.week-grid-wrap{overflow:auto}.week-grid{display:grid;grid-template-columns:74px repeat(5,minmax(205px,1fr));grid-template-rows:54px repeat(var(--week-rows),10px);min-width:1120px;position:relative}.week-corner,.week-day-head,.week-time{position:sticky;background:#f6f9fb;z-index:5;border:1px solid #e0e7ec}.week-corner{left:0;top:0;grid-column:1;grid-row:1}.week-day-head{top:0;text-align:center;padding:.5rem}.week-day-head span{display:block;font-size:.8rem;color:var(--muted)}.week-time{left:0;z-index:4;font-size:.72rem;padding:.1rem .3rem}.today-column{background:#e6f0fb}.week-session{background:var(--session-bg);border:1px solid rgba(0,0,0,.16);border-radius:.6rem;padding:.42rem;margin:2px;z-index:3;display:flex;flex-direction:column;gap:.22rem;overflow:visible;min-height:max-content}.week-session strong{font-size:.79rem;line-height:1.25;white-space:normal}.week-session small{font-size:.72rem}.week-session.manual{outline:2px solid var(--primary)}.week-session.off{opacity:.68}.today-session{outline:3px solid #2b78c5}.week-class-link{border:0;background:transparent;text-align:left;padding:0;font-weight:800;color:inherit}.week-badges{display:flex;gap:.2rem;align-items:center;flex-wrap:wrap}.week-badges .pill{font-size:.68rem;padding:.12rem .32rem}.management-toolbar{border-left:6px solid var(--green)}.green-panel{border-color:#b9d8c7}.grades-table input{min-width:110px}.seating-toolbar{display:flex;gap:.8rem;padding:1rem}.seating-grid{display:grid;grid-template-columns:repeat(var(--seat-cols),minmax(120px,1fr));gap:.65rem;padding:1rem}.seat{background:var(--green-soft);padding:.55rem;border-radius:.65rem;border:1px solid #b7d7c5}.seat span{font-size:.72rem}.teacher-desk{width:min(420px,60%);margin:1rem auto;padding:.8rem;text-align:center;background:#d1e8da;border-radius:.65rem}.settings-tab-content{padding:.6rem 0}.color-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.55rem}.color-grid label{flex-direction:row;align-items:center;justify-content:space-between}.color-grid input{width:54px;height:35px;padding:.15rem}.toast{position:fixed;right:1rem;bottom:1rem;background:#173f61;color:#fff;border-radius:.6rem;padding:.7rem 1rem;z-index:100}.auth-screen{min-height:100vh;display:grid;place-items:center;padding:1.5rem;background:#edf3f7}.auth-card{width:min(440px,100%);padding:1.6rem}.auth-card form{display:grid;gap:.8rem;margin:1rem 0}.auth-card summary{cursor:pointer;font-weight:700}.auth-message{min-height:1.4rem;color:var(--muted)}.auth-message.error,.error-box{color:var(--danger)}body.compact th,body.compact td{padding:.34rem .48rem}body.compact .class-card,body.compact .calendar-collection,body.compact .panel{box-shadow:none}body.compact button,body.compact input,body.compact select,body.compact textarea{padding:.38rem .52rem}.management-mode{--primary:var(--green)}@media(max-width:1000px){.topbar{flex-wrap:wrap}.year-switcher{margin-left:0}.program-layout{grid-template-columns:1fr}.form-grid.three,.schedule-row{grid-template-columns:1fr 1fr}.item-editor-row{grid-template-columns:auto 120px 1fr}.item-editor-row .item-note{grid-column:1/-1}.work-board{grid-template-columns:repeat(5,250px)}}@media(max-width:700px){main{padding:.8rem}.topbar{position:static;align-items:stretch}.brand{min-width:0}.master-switch,.top-actions{width:100%}.master-switch button,.top-actions button{flex:1}.year-switcher{width:100%}.main-tabs{overflow-x:auto;white-space:nowrap;flex-wrap:nowrap}.summary-grid{grid-template-columns:1fr 1fr}.form-grid,.form-grid.three,.import-grid{grid-template-columns:1fr}.class-head,.collection-head,.resource-card,.theme-summary{display:block}.schedule-row{grid-template-columns:1fr 1fr}.theme-ref-row{grid-template-columns:1fr auto auto}.week-grid{grid-template-columns:58px repeat(5,minmax(175px,1fr));min-width:950px}.week-toolbar strong{width:100%;margin-left:0}.seating-grid{grid-template-columns:repeat(2,minmax(120px,1fr))}}.year-controls{display:flex;align-items:end;gap:.35rem}.year-controls .icon-btn{height:42px}.date-input-wrap,.time-input-wrap{display:flex;width:100%;min-width:0;border:1px solid var(--line);border-radius:.55rem;background:#fff;padding:.5rem .65rem}.date-input-wrap input,.time-input-wrap input{display:block;width:100%;min-width:0;border:0;background:transparent;padding:0;box-shadow:none}.schedule-row .time-input-wrap{padding:.38rem .45rem}.schedule-row{grid-template-columns:120px 115px 18px 115px minmax(190px,1fr) minmax(150px,1fr) minmax(160px,1fr) 40px}.agenda-strip{display:flex;gap:.55rem;align-items:stretch;overflow-x:auto;margin:.65rem 0}.agenda-strip[hidden]{display:none}.agenda-title{display:flex;align-items:center;font-weight:800;min-width:max-content;padding:.55rem}.agenda-item{display:flex;align-items:center;gap:.5rem;min-width:270px;border:1px solid #d7e0e7;border-left:5px solid #d3942d;border-radius:.65rem;background:#fffaf0;padding:.55rem .7rem}.agenda-item small{display:block;color:var(--muted);margin-top:.2rem}.week-grid{grid-template-rows:54px repeat(var(--week-rows),12px)}.week-grid-background{position:absolute;z-index:0;inset:54px 0 0 74px;pointer-events:none;background-image:linear-gradient(to right,rgba(85,110,128,.22) 1px,transparent 1px),repeating-linear-gradient(to bottom,rgba(85,110,128,.16) 0,rgba(85,110,128,.16) 1px,transparent 1px,transparent 108px);background-size:20% 100%,100% 108px;background-position:0 0}.week-session{overflow:auto;min-height:104px}.week-session strong{overflow-wrap:anywhere}.week-time{min-height:18px}.week-toolbar .date-input-wrap{width:150px;margin-top:.25rem}.summary-grid{grid-template-columns:repeat(auto-fit,minmax(130px,1fr))}.prompt-details{padding:1rem;margin-top:.85rem}.prompt-details summary,.faq-grid summary{cursor:pointer;font-weight:800}.prompt-details[open] .ai-prompt{display:block}.ai-prompt{display:none;min-height:520px;white-space:pre-wrap;overflow-wrap:anywhere}.faq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:.75rem;margin-top:.85rem}.faq-grid details{padding:1rem}.faq-grid p{color:var(--muted)}.management-subtoolbar{display:flex;justify-content:flex-end;margin:.7rem 0}.grading-explanation{padding:.75rem;background:var(--green-soft);border-radius:.65rem;margin-bottom:.7rem}.assessment-config input,.assessment-config select{min-width:130px}.grades-grid-wrap{margin-top:.8rem}.grades-grid-wrap th{min-width:105px}.grades-grid-wrap th:first-child{min-width:180px}.room-toolbar{display:flex;gap:.6rem;align-items:end;flex-wrap:wrap;padding:1rem;margin-bottom:.8rem}.room-toolbar label{min-width:150px}.room-canvas{position:relative;height:620px;overflow:hidden;background-image:linear-gradient(#dfe9e3 1px,transparent 1px),linear-gradient(90deg,#dfe9e3 1px,transparent 1px);background-size:25px 25px}.room-table{position:absolute;width:180px;min-height:92px;transform:translate(-50%,-50%);background:#d7eddf;border:2px solid #83b499;border-radius:.65rem;padding:.45rem;cursor:grab;touch-action:none}.room-table:active{cursor:grabbing}.room-table select{padding:.28rem;margin-top:.25rem}.room-table .delete-table{position:absolute;right:.2rem;top:.15rem;padding:.1rem .35rem}.table-label{font-weight:800}.teacher-desk-room{position:absolute;left:37%;top:2%;width:26%;padding:.55rem;background:#b8ddc6;border-radius:.55rem;text-align:center}.attendance-toolbar{display:flex;align-items:end;gap:.8rem;flex-wrap:wrap;padding:1rem;margin-bottom:.8rem}.attendance-toolbar label{min-width:330px}.work-task.split-editor{display:block;border-left-color:#d08a35;cursor:default;padding:.65rem}.split-piece{position:relative;padding:.6rem;border:1px solid #d9b16c;background:#fffaf0}.split-piece-top{border-radius:.6rem .6rem .15rem .15rem;border-bottom-style:dashed}.split-piece-bottom{border-radius:.15rem .15rem .6rem .6rem;border-top:0}.split-piece label{display:block;margin:.35rem 0}.split-piece input,.split-piece textarea{width:100%}.cut-edge{position:absolute;right:.5rem;bottom:-.75rem;background:#fffaf0;padding:0 .3rem;z-index:2}.split-actions{display:flex;justify-content:flex-end;gap:.45rem;margin-top:.5rem}.management-toolbar .button-like{align-self:end}.green-tabs button.active{background:var(--green);color:#fff}.management-view{display:none}.management-view.active{display:block}@media(max-width:1100px){.schedule-row{grid-template-columns:1fr 1fr}.schedule-row>span{display:none}.week-grid-background{left:58px}.room-canvas{height:520px}}@media(max-width:700px){.year-controls{width:100%}.year-controls .year-switcher{flex:1}.agenda-item{min-width:240px}.room-canvas{height:480px}.room-table{width:145px}.assessment-config{min-width:850px}}.schedule-row-v8{grid-template-columns:112px 112px 18px 112px 105px minmax(185px,1fr) minmax(150px,1fr) minmax(150px,1fr) 40px}.inline-field{display:flex;align-items:center;gap:.35rem;font-size:.75rem;color:var(--muted)}.inline-field select{min-width:78px}.tp-ref-row{display:grid;grid-template-columns:minmax(230px,1fr) 110px auto auto auto auto;gap:.45rem;align-items:center;padding:.55rem;border:1px solid var(--line);border-radius:.65rem;margin:.4rem 0;background:#f1faf5}.tp-summary{border-left:5px solid #52a47a}#tpEditor .item-editor-list{margin:.8rem 0}.grade-group-config{max-width:620px}.grade-group-config input{min-width:130px}@media(max-width:1100px){.schedule-row-v8{grid-template-columns:1fr 1fr}.tp-ref-row{grid-template-columns:1fr auto auto}}