:root{--calendar-bg:#fefcf9;--calendar-header-bg:#fdf8f0;--calendar-cell-hover-bg:#fef9f3;--calendar-weekend-bg:#faf6f1;--calendar-other-month-bg:#f9f5ef;--calendar-today-ring:#0072b2;--calendar-border:#ede5d8;--calendar-header-text:#5b4a3a;--calendar-holiday-bg:#fef3e2;--calendar-holiday-text:#92400e;--calendar-holiday-badge-bg:#fde68a40;--shadow-warm-sm:0 1px 3px 0 #b48c6414;--primary-50:#fffbeb;--primary-100:#fef3c7;--primary-200:#fde68a;--primary-300:#fcd34d;--primary-400:#fbbf24;--primary-500:#f59e0b;--primary-600:#d97706;--primary-700:#b45309;--primary-800:#92400e;--primary-900:#78350f;--gray-50:#fafaf9;--gray-100:#f5f5f4;--gray-200:#e7e5e4;--gray-300:#d6d3d1;--gray-400:#87817c;--gray-500:#78716c;--gray-600:#57534e;--gray-700:#44403c;--gray-800:#292524;--gray-900:#1c1917;--success-50:#ecfdf5;--success-500:#10b981;--success-600:#059669;--success-700:#047857;--danger-50:#fef2f2;--danger-500:#ef4444;--danger-600:#dc2626;--danger-700:#b91c1c;--warning-50:#fffbeb;--warning-500:#f59e0b;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--radius-sm:0.375rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-2xl:1.5rem;--radius-full:9999px;--shadow-sm:0 1px 2px 0 #7864500f;--shadow-md:0 4px 6px -1px #78645014,0 2px 4px -2px #7864500f;--shadow-lg:0 10px 15px -3px #78645014,0 4px 6px -4px #7864500f;--shadow-xl:0 20px 25px -5px #78645014,0 8px 10px -6px #7864500f;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--font-serif:"Georgia","Times New Roman",serif;--font-mono:"SF Mono","Monaco","Inconsolata","Roboto Mono",monospace;--text-xs:0.75rem;--text-sm:0.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--text-4xl:2.25rem;--leading-tight:1.25;--leading-normal:1.5;--leading-relaxed:1.625;--transition-fast:150ms ease;--transition-base:200ms ease;--transition-slow:300ms ease}*,:after,:before{box-sizing:border-box}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background-color:#fafaf9;background-color:var(--gray-50);color:#292524;color:var(--gray-800);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-family:var(--font-sans);font-size:1rem;font-size:var(--text-base);line-height:1.5;line-height:var(--leading-normal);margin:0}code{font-family:SF Mono,Monaco,Inconsolata,Roboto Mono,monospace;font-family:var(--font-mono)}:focus-visible{outline:3px solid #0072b2;outline-offset:2px}a{color:#d97706;color:var(--primary-600);text-decoration:none;transition:color .15s ease;transition:color var(--transition-fast)}a:hover{color:#b45309;color:var(--primary-700)}button{cursor:pointer;font-family:inherit}button:disabled{cursor:not-allowed;opacity:.6}input,select,textarea{font-family:inherit;font-size:inherit}.sr-only{clip:rect(0,0,0,0);border:0;height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-4px)}}@media print{header{display:none!important}body{background:#fff}}.Sidebar_sidebar__zfhso{--sidebar-width:240px;--sidebar-collapsed-width:64px;background-color:#fff;border-right:1px solid var(--gray-200);display:flex;flex-direction:column;flex-shrink:0;height:calc(100vh - 64px);overflow:hidden;position:-webkit-sticky;position:sticky;top:64px;transition:width var(--transition-base);width:var(--sidebar-width);z-index:50}.Sidebar_sidebar__zfhso.Sidebar_collapsed__OmP27{width:var(--sidebar-collapsed-width)}.Sidebar_navSection__R\+KYg{flex:1 1}.Sidebar_bottomSection__ixxKs,.Sidebar_navSection__R\+KYg{display:flex;flex-direction:column;gap:var(--space-1);padding:var(--space-3) var(--space-2)}.Sidebar_bottomSection__ixxKs{border-top:1px solid var(--gray-200)}.Sidebar_collapseButton__NVcjF,.Sidebar_navItem__MYTiy{align-items:center;background:none;border:none;border-left:3px solid #0000;border-radius:var(--radius-md);color:var(--gray-600);cursor:pointer;display:flex;font-family:inherit;font-size:var(--text-sm);font-weight:500;gap:var(--space-3);padding:var(--space-2) var(--space-3);text-align:left;text-decoration:none;transition:background-color var(--transition-fast),color var(--transition-fast);white-space:nowrap;width:100%}.Sidebar_collapseButton__NVcjF:hover,.Sidebar_navItem__MYTiy:hover{background-color:var(--gray-100);color:var(--gray-700)}.Sidebar_navItem__MYTiy.Sidebar_active__8Rvdk{background-color:var(--primary-50);border-left-color:var(--primary-500);color:var(--primary-700)}.Sidebar_collapsed__OmP27 .Sidebar_collapseButton__NVcjF,.Sidebar_collapsed__OmP27 .Sidebar_navItem__MYTiy{justify-content:center;padding:10px}.Sidebar_navIcon__RqD3V{align-items:center;display:flex;flex-shrink:0;height:20px;justify-content:center;width:20px}.Sidebar_navLabel__Ut1eV{opacity:1;overflow:hidden;transition:opacity var(--transition-base)}.Sidebar_collapsed__OmP27 .Sidebar_navLabel__Ut1eV{opacity:0;width:0}.Sidebar_chevron__xCwly{align-items:center;display:flex;flex-shrink:0;height:20px;justify-content:center;transition:transform var(--transition-base);width:20px}.Sidebar_collapsed__OmP27 .Sidebar_chevron__xCwly{transform:rotate(180deg)}.Sidebar_createWrapper__A1P1c{padding:12px;position:relative}.Sidebar_createButton__2\+u2v{align-items:center;background:linear-gradient(135deg,var(--primary-500) 0,var(--primary-600) 100%);border:none;border-radius:var(--radius-md);color:#fff;cursor:pointer;display:flex;font-size:14px;font-weight:600;gap:12px;padding:10px 16px;transition:all var(--transition-fast);width:100%}.Sidebar_createButton__2\+u2v:hover{box-shadow:0 2px 8px #2563eb4d;filter:brightness(1.05)}.Sidebar_collapsed__OmP27 .Sidebar_createButton__2\+u2v{justify-content:center;padding:10px}.Sidebar_createDropdown__-4sJC{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);left:12px;overflow:hidden;position:absolute;right:12px;top:calc(100% + 4px);z-index:60}.Sidebar_collapsed__OmP27 .Sidebar_createDropdown__-4sJC{left:64px;right:auto;top:12px;width:160px}.Sidebar_createOption__QWaIY{color:var(--gray-700);display:block;font-size:14px;font-weight:500;padding:10px 16px;text-decoration:none;transition:background var(--transition-fast)}.Sidebar_createOption__QWaIY:hover{background:var(--gray-50);color:var(--gray-900)}@media (max-width:767px){.Sidebar_sidebar__zfhso{width:var(--sidebar-collapsed-width)}.Sidebar_collapseButton__NVcjF,.Sidebar_navItem__MYTiy{justify-content:center;padding:10px}.Sidebar_navLabel__Ut1eV{opacity:0;width:0}.Sidebar_chevron__xCwly{transform:rotate(180deg)}}.CalendarHeader_header__WBmKM{align-items:center;background:var(--calendar-header-bg);border-bottom:1px solid var(--calendar-border);display:flex;justify-content:space-between;padding:var(--space-4) var(--space-6)}.CalendarHeader_left__J5FI5{align-items:center;display:flex;gap:var(--space-4)}.CalendarHeader_title__pJXB5{color:var(--calendar-header-text);font-size:var(--text-2xl);font-weight:700;margin:0;min-width:220px}.CalendarHeader_navButtons__HTz6Y{align-items:center;display:flex;gap:var(--space-1)}.CalendarHeader_navBtn__JCMGu{align-items:center;background:#fff;border:1px solid var(--calendar-border);border-radius:var(--radius-md);color:var(--calendar-header-text);cursor:pointer;display:flex;height:32px;justify-content:center;transition:all var(--transition-fast);width:32px}.CalendarHeader_navBtn__JCMGu:hover{background:var(--calendar-cell-hover-bg);border-color:#d6cdc0;color:var(--gray-800)}.CalendarHeader_todayBtn__tksRx{background:#fff;border:1px solid var(--calendar-border);border-radius:var(--radius-md);color:var(--calendar-header-text);cursor:pointer;font-size:var(--text-sm);font-weight:500;height:32px;padding:var(--space-1) var(--space-3);transition:all var(--transition-fast)}.CalendarHeader_todayBtn__tksRx:hover{background:var(--calendar-cell-hover-bg);border-color:#d6cdc0}.CalendarHeader_right__IsRmE{align-items:center;display:flex;gap:var(--space-3)}.CalendarHeader_newClassBtn__yQxR\+{align-items:center;background:var(--primary-600);border:none;border-radius:var(--radius-md);color:#fff;cursor:pointer;display:flex;font-size:var(--text-sm);font-weight:600;gap:4px;height:32px;padding:var(--space-1) var(--space-4);transition:all var(--transition-fast);white-space:nowrap}.CalendarHeader_newClassBtn__yQxR\+:hover{background:var(--primary-700)}.CalendarHeader_coverageBtn__Mmoxp{align-items:center;background:#fff;border:1px solid var(--calendar-border);border-radius:var(--radius-md);color:var(--calendar-header-text);cursor:pointer;display:flex;font-size:var(--text-sm);font-weight:500;gap:4px;height:32px;padding:var(--space-1) var(--space-3);transition:all var(--transition-fast);white-space:nowrap}.CalendarHeader_coverageBtn__Mmoxp:hover{background:var(--calendar-cell-hover-bg);border-color:#d6cdc0}.CalendarHeader_draftsBadge__8RH88{align-items:center;background:var(--calendar-other-month-bg);border:1px solid var(--calendar-border);border-radius:var(--radius-full);color:var(--calendar-header-text);cursor:pointer;display:flex;font-size:var(--text-sm);font-weight:500;gap:6px;padding:var(--space-1) var(--space-3);transition:all var(--transition-fast)}.CalendarHeader_draftsBadge__8RH88:hover{background:var(--calendar-border);color:var(--gray-800)}.CalendarHeader_weekendToggle__6G0Z3{background:#fff;border:1px solid var(--calendar-border);border-radius:var(--radius-full);color:var(--calendar-header-text);cursor:pointer;font-size:var(--text-sm);font-weight:500;height:32px;padding:var(--space-1) var(--space-3);transition:all var(--transition-fast)}.CalendarHeader_weekendToggle__6G0Z3:hover{background:var(--calendar-cell-hover-bg);border-color:#d6cdc0}.CalendarHeader_weekendToggleActive__9h3lu{background:#fef3c7;border-color:var(--calendar-today-ring);color:#92400e}.CalendarHeader_weekendToggleActive__9h3lu:hover{background:#fde68a}.CalendarHeader_viewToggle__6XTpC{border:1px solid var(--calendar-border);border-radius:var(--radius-md);display:flex;overflow:hidden}.CalendarHeader_viewBtn__ZyO0B{background:#fff;border:none;color:var(--calendar-header-text);cursor:pointer;font-size:var(--text-sm);font-weight:500;height:32px;padding:var(--space-1) var(--space-4);transition:all var(--transition-fast)}.CalendarHeader_viewBtn__ZyO0B:not(:last-child){border-right:1px solid var(--calendar-border)}.CalendarHeader_viewBtn__ZyO0B:hover{background:var(--calendar-cell-hover-bg)}.CalendarHeader_viewBtnActive__3G9gm{background:#fef3c7;color:#92400e;font-weight:600}.CalendarHeader_viewBtnActive__3G9gm:hover{background:#fde68a}@media (max-width:640px){.CalendarHeader_header__WBmKM{flex-wrap:wrap;gap:var(--space-3);padding:var(--space-3) var(--space-4)}.CalendarHeader_left__J5FI5{gap:var(--space-2)}.CalendarHeader_title__pJXB5{font-size:var(--text-lg);min-width:auto}.CalendarHeader_right__IsRmE{justify-content:space-between;width:100%}}.LessonChip_chip__CDVKo{align-items:center;border-left:3px solid;border-radius:var(--radius-md);cursor:pointer;display:flex;font-size:.75rem;gap:var(--space-1);line-height:1.4;overflow:hidden;padding:2px var(--space-2);text-overflow:ellipsis;transition:opacity .15s ease,transform .15s ease,box-shadow .15s ease;white-space:nowrap}.LessonChip_chip__CDVKo:hover{box-shadow:var(--shadow-warm-sm);opacity:.9;transform:scale(1.02)}.LessonChip_dragging__wsl-x{z-index:1}.LessonChip_title__ye1L8{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.LessonChip_grade__pIPbW{background:#00000014;border-radius:3px;flex-shrink:0;font-size:.7rem;font-weight:600;padding:0 4px}@media (max-width:640px){.LessonChip_chip__CDVKo{border-left-width:2px;font-size:.7rem;padding:1px var(--space-1)}.LessonChip_grade__pIPbW{display:none}}.WorksheetChip_chip__6h0BR{align-items:center;background-color:#f5f3ff;border-left:3px solid #7c3aed;border-radius:var(--radius-md);color:#5b21b6;cursor:pointer;display:flex;font-size:.75rem;gap:var(--space-1);line-height:1.4;overflow:hidden;padding:2px var(--space-2);text-overflow:ellipsis;transition:opacity .15s ease,transform .15s ease,box-shadow .15s ease;white-space:nowrap}.WorksheetChip_dragging__JcRFy{opacity:.3}.WorksheetChip_chip__6h0BR:hover{box-shadow:0 1px 3px #7c3aed33;opacity:.9;transform:scale(1.02)}.WorksheetChip_typeIcon__XabQh{background:#7c3aed26;border-radius:3px;flex-shrink:0;font-size:.65rem;font-weight:700;letter-spacing:.02em;padding:0 4px}.WorksheetChip_title__p2tqH{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.WorksheetChip_grade__DYSZz{background:#7c3aed1a;border-radius:3px;flex-shrink:0;font-size:.7rem;font-weight:600;padding:0 4px}@media (max-width:640px){.WorksheetChip_chip__6h0BR{border-left-width:2px;font-size:.7rem;padding:1px var(--space-1)}.WorksheetChip_typeIcon__XabQh{font-size:.6rem}.WorksheetChip_grade__DYSZz{display:none}}.DayCell_cell__efrtJ{background:var(--calendar-bg);border-bottom:1px solid var(--calendar-border);border-right:1px solid var(--calendar-border);cursor:pointer;display:flex;flex-direction:column;overflow:hidden;padding:var(--space-1);transition:background var(--transition-fast)}.DayCell_cell__efrtJ:hover{background:var(--calendar-cell-hover-bg)}.DayCell_lastInRow__E8U3f{border-right:none}.DayCell_otherMonth__W-kOX{background:var(--calendar-other-month-bg)}.DayCell_otherMonth__W-kOX:hover{background:var(--calendar-border)}.DayCell_otherMonth__W-kOX .DayCell_dateNumber__xD02G{color:var(--gray-500)}.DayCell_weekend__J7gpk{background:var(--calendar-weekend-bg)}.DayCell_weekend__J7gpk:hover{background:var(--calendar-cell-hover-bg)}.DayCell_holiday__ZRdy5{background:var(--calendar-holiday-bg)}.DayCell_holiday__ZRdy5:hover{background:#fdecc8}.DayCell_today__snAK8{background:#f0f7fc}.DayCell_today__snAK8:hover{background:#e6f1f8}.DayCell_dateRow__OupWC{align-items:center;display:flex;gap:var(--space-1);margin-bottom:var(--space-1)}.DayCell_dateNumber__xD02G{align-items:center;color:var(--gray-700);display:inline-flex;flex-shrink:0;font-size:var(--text-sm);font-weight:500;height:26px;justify-content:center;width:26px}.DayCell_dateToday__xUvCv{background:var(--calendar-today-ring);border-radius:var(--radius-full);color:#fff;font-weight:600}.DayCell_holidayBadge__W4GHy{align-items:center;background:var(--calendar-holiday-badge-bg);border-radius:var(--radius-full);display:inline-flex;gap:2px;min-width:0;overflow:hidden;padding:1px 6px}.DayCell_holidayEmoji__qul6E{flex-shrink:0;font-size:.75rem}.DayCell_holidayName__dHnqC{color:var(--calendar-holiday-text)}.DayCell_holidayName__dHnqC,.DayCell_unitBand__pcBew{font-size:.7rem;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.DayCell_unitBand__pcBew{border-left:2px solid;border-radius:2px;line-height:1.3;margin:0 1px;padding:1px 4px}.DayCell_lessons__1ZgXg{display:flex;flex:1 1;flex-direction:column;gap:2px;overflow:hidden}.DayCell_overflow__B7cI7{color:var(--gray-500);font-size:.7rem;font-weight:500;padding:1px var(--space-2)}.DayCell_dropTarget__N\+L4K{background:#e6f1f8!important;outline:2px dashed var(--calendar-today-ring);outline-offset:-2px}@media (max-width:640px){.DayCell_cell__efrtJ{padding:2px}.DayCell_dateNumber__xD02G{font-size:var(--text-xs);height:22px;width:22px}.DayCell_holidayBadge__W4GHy,.DayCell_unitBand__pcBew{display:none}}.MonthView_container__J5422{display:flex;flex:1 1;flex-direction:column;overflow:hidden}.MonthView_weekHeader__-5\+oo{background:var(--calendar-header-bg);border-bottom:1px solid var(--calendar-border);display:grid}.MonthView_dayName__EVFoo{color:var(--calendar-header-text);font-size:var(--text-xs);font-weight:600;letter-spacing:.05em;padding:var(--space-2) var(--space-3);text-align:center;text-transform:uppercase}.MonthView_grid__43Wvh{display:grid;flex:1 1;grid-auto-rows:1fr}@media (max-width:640px){.MonthView_dayName__EVFoo{font-size:.65rem;padding:var(--space-1) var(--space-1)}}.WeekView_container__w4A33{display:flex;flex:1 1;flex-direction:column;overflow:hidden}.WeekView_grid__-yqPK{display:grid;flex:1 1}.WeekView_dayColumn__SL7SG{border-right:1px solid var(--calendar-border);cursor:pointer;display:flex;flex-direction:column;min-height:0;transition:background var(--transition-fast)}.WeekView_dayColumn__SL7SG:last-child{border-right:none}.WeekView_dayColumn__SL7SG:hover{background:var(--calendar-cell-hover-bg)}.WeekView_dropTarget__kKdEr{background:#fef3c7!important;outline:2px dashed var(--calendar-today-ring);outline-offset:-2px}.WeekView_today__EGEqZ{background:#fffdf5}.WeekView_today__EGEqZ:hover{background:#fffbeb}.WeekView_holiday__epM8Z{background:var(--calendar-holiday-bg)}.WeekView_holiday__epM8Z:hover{background:#fdecc8}.WeekView_dayHeader__llpdO{align-items:center;border-bottom:1px solid var(--calendar-border);display:flex;flex-direction:column;gap:var(--space-1);padding:var(--space-3) var(--space-2)}.WeekView_dayName__6RIu-{color:var(--calendar-header-text);font-size:var(--text-xs);font-weight:600;letter-spacing:.05em;text-transform:uppercase}.WeekView_dateNumber__JDujp{align-items:center;border-radius:var(--radius-full);color:var(--gray-700);display:inline-flex;font-size:var(--text-lg);font-weight:600;height:32px;justify-content:center;width:32px}.WeekView_dateToday__1exq6{background:var(--calendar-today-ring);color:#fff}.WeekView_holidayBadge__51mKK{background:var(--calendar-holiday-badge-bg);border-radius:var(--radius-full);color:var(--calendar-holiday-text);font-size:.65rem;font-weight:600;padding:1px 6px;text-align:center}.WeekView_lessons__wjgQR{display:flex;flex:1 1;flex-direction:column;gap:var(--space-1);overflow:hidden;padding:var(--space-2)}.WeekView_unitBadge__AOe2n{border:1px solid;border-radius:var(--radius-full);font-size:.65rem;font-weight:600;max-width:100%;overflow:hidden;padding:1px 6px;text-align:center;text-overflow:ellipsis;white-space:nowrap}.WeekView_empty__YWyuE{color:var(--gray-400);font-size:var(--text-xs);padding:var(--space-4) 0;text-align:center}.DraftsPanel_overlay__AMB4G{animation:DraftsPanel_fadeIn__lk8gE .15s ease;background:#0003;inset:0;position:fixed;z-index:200}.DraftsPanel_panel__m01up{animation:DraftsPanel_slideIn__lZulI .2s ease;background:var(--calendar-bg);box-shadow:0 8px 30px #b48c6426;display:flex;flex-direction:column;height:100vh;max-width:90vw;position:fixed;right:0;top:0;width:380px;z-index:201}.DraftsPanel_header__Gu2eN{align-items:center;border-bottom:1px solid var(--calendar-border);display:flex;justify-content:space-between;padding:var(--space-5) var(--space-5)}.DraftsPanel_title__V-Pu8{align-items:center;color:var(--gray-900);display:flex;font-size:var(--text-lg);font-weight:600;gap:var(--space-2);margin:0}.DraftsPanel_closeBtn__Tj0Z6{align-items:center;background:#0000;border:none;border-radius:var(--radius-md);color:var(--gray-500);cursor:pointer;display:flex;height:32px;justify-content:center;transition:all var(--transition-fast);width:32px}.DraftsPanel_closeBtn__Tj0Z6:hover{background:var(--gray-100);color:var(--gray-700)}.DraftsPanel_content__LETet{flex:1 1;overflow-y:auto;padding:var(--space-2)}.DraftsPanel_draftItem__pY4s\+{align-items:center;background:#fff;border:none;border-radius:var(--radius-md);cursor:pointer;display:flex;gap:var(--space-3);padding:var(--space-3) var(--space-4);text-align:left;transition:background 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