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auto;display:grid;overflow-y:auto}.ui-modal__header{justify-content:space-between;align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-5);border-block-end:1px solid var(--color-border);display:flex}.ui-modal__title{color:var(--color-text-primary);font-size:var(--font-size-section-title);font-weight:700;line-height:var(--line-height-tight);margin:0}.ui-modal__close{border:1px solid var(--color-border);border-radius:var(--radius-md);min-width:2rem;height:2rem;color:var(--color-text-muted);cursor:pointer;font:inherit;font-size:var(--font-size-small);background:0 0;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.ui-modal__close:hover{background:var(--color-surface-muted)}.ui-modal__body{padding:var(--space-5)}.ui-modal__footer{justify-content:flex-end;gap:var(--space-3);padding:var(--space-4) var(--space-5);border-block-start:1px solid var(--color-border);display:flex}.ui-badge--warning{color:var(--color-warning);border-color:var(--color-warning-bg);background:var(--color-warning-bg)}@media (max-width:760px){.book-library-grid{grid-template-columns:1fr}.book-filters-bar{flex-direction:column;align-items:stretch}.book-filters-bar__select{width:100%}}.structure-tree{gap:var(--space-3);flex-direction:column;display:flex}.structure-tree__table{width:100%}.structure-tree__table th,.structure-tree__table td{vertical-align:middle}.structure-node-row__indent{min-width:280px}.structure-node-row__actions{white-space:nowrap;text-align:end}.structure-node-row__actions-head{text-align:end}.structure-node-row__actions .ui-button+.ui-button{margin-inline-start:var(--space-1)}.structure-node-row__label{align-items:center;gap:var(--space-2);display:inline-flex}.structure-node-row__label--active-range{background:color-mix(in srgb, var(--color-primary) 12%, transparent);border-radius:var(--radius-1);outline:2px solid 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srgb, var(--color-accent) 8%, var(--color-surface))}.assign-book-item__title{font-weight:500}.assign-book-item__meta{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.assistant-form__fields{gap:var(--space-4);flex-direction:column;display:flex}.assistant-form__notes{grid-column:1/-1}.ui-textarea{resize:vertical;min-height:80px;line-height:var(--line-height-body)}.assignment-filter{gap:var(--space-2);flex-wrap:wrap;margin-block-end:var(--space-4);display:flex}.assignment-filter__btn{border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text-secondary);cursor:pointer;font:inherit;font-size:var(--font-size-control);padding-block:var(--space-1);padding-inline:var(--space-3);transition:background .12s,color .12s,border-color .12s}.assignment-filter__btn:hover{border-color:var(--color-border-strong);color:var(--color-text-primary)}.assignment-filter__btn--active{border-color:var(--color-accent);background:color-mix(in srgb, var(--color-accent) 10%, var(--color-surface));color:var(--color-text-primary);font-weight:600}.curriculum-pagination{justify-content:center;align-items:center;gap:var(--space-4);flex-wrap:wrap;margin-block-start:var(--space-4);display:flex}.curriculum-pagination__counter{text-align:center;flex-direction:column;align-items:center;gap:2px;min-width:9rem;display:inline-flex}.curriculum-pagination__range{color:var(--color-text-primary);font-size:var(--font-size-control);font-weight:600}.curriculum-pagination__page{color:var(--color-text-muted);font-size:var(--font-size-small)}.admin-shell{min-height:100vh;display:flex}.admin-shell__content{flex:1;min-width:0;overflow-y:auto}.admin-sidebar{background:var(--color-surface);border-inline-start:1px solid var(--color-border);width:220px;padding:var(--space-4);flex-direction:column;flex-shrink:0;min-height:100vh;display:flex}.admin-sidebar__brand{font-size:var(--font-size-section-title);color:var(--color-text-primary);padding-block-start:var(--space-2);padding-block-end:var(--space-5);font-weight:700}.admin-sidebar__nav{gap:var(--space-1);flex-direction:column;flex:1;display:flex}.admin-sidebar__logout{border:1px solid var(--color-border);color:var(--color-text-secondary);font:inherit;font-size:var(--font-size-small);cursor:pointer;padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);text-align:start;background:0 0;margin-block-start:auto;transition:background .12s,color .12s}.admin-sidebar__logout:hover{background:var(--color-surface-muted);color:var(--color-danger)}.admin-login{min-height:100dvh;padding:var(--space-5);background:var(--color-surface-muted);direction:rtl;justify-content:center;align-items:center;display:flex}.admin-login__card{gap:var(--space-3);width:100%;max-width:360px;padding:var(--space-6);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);flex-direction:column;display:flex}.admin-login__brand{text-align:center;color:var(--color-text-primary);font-size:1.5rem;font-weight:800}.admin-login__title{margin:0 0 var(--space-2);text-align:center;color:var(--color-text-secondary);font-size:1rem;font-weight:600}.admin-login__link{color:var(--color-action);font:inherit;font-size:var(--font-size-small);cursor:pointer;padding:var(--space-1);text-align:center;background:0 0;border:none;text-decoration:underline}.admin-auth-loading{min-height:60dvh;color:var(--color-text-muted);justify-content:center;align-items:center;display:flex}.security-panel__block{gap:var(--space-2);padding:var(--space-3) 0;border-block-start:1px solid var(--color-border);flex-direction:column;margin-block-start:var(--space-2);display:flex}.security-panel__status{align-items:center;gap:var(--space-2);font-size:var(--font-size-small);color:var(--color-text-secondary);display:flex}.security-panel__badge{padding:2px var(--space-2);border-radius:var(--radius-pill);font-size:.75rem;font-weight:700}.security-panel__badge--on{background:var(--color-success-bg);color:var(--color-success);border:1px solid var(--color-success)}.security-panel__badge--off{background:var(--color-surface-muted);color:var(--color-text-muted);border:1px solid var(--color-border)}.security-panel__subtitle{font-size:var(--font-size-small);color:var(--color-text-primary);margin:0;font-weight:700}.security-panel__setup{gap:var(--space-2);flex-direction:column;display:flex}.security-panel__hint{font-size:var(--font-size-small);color:var(--color-text-secondary);margin:0;line-height:1.6}.security-panel__secret,.security-panel__uri{padding:var(--space-2);background:var(--color-surface-muted);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:var(--font-size-small);word-break:break-all;-webkit-user-select:all;user-select:all;display:block}.security-panel__secret{letter-spacing:.1em;font-size:1.05rem;font-weight:700}.security-panel__actions{gap:var(--space-2);display:flex}.security-panel__backup{padding:var(--space-3);background:var(--color-warning-bg);border:1px solid var(--color-warning);border-radius:var(--radius-md);margin-block-start:var(--space-2)}.security-panel__backup-warn{margin:0 0 var(--space-2);font-size:var(--font-size-small);color:var(--color-text-primary);font-weight:600;line-height:1.6}.security-panel__backup-list{gap:var(--space-1);letter-spacing:.08em;grid-template-columns:repeat(2,1fr);margin:0;padding:0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:700;list-style:none;display:grid}.admin-sidebar__link{padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);font-size:var(--font-size-control);color:var(--color-text-secondary);cursor:pointer;text-decoration:none;transition:background .12s,color .12s;display:block}.admin-sidebar__link:hover:not(.admin-sidebar__link--disabled):not(.admin-sidebar__link--active){background:var(--color-surface-muted);color:var(--color-text-primary)}.admin-sidebar__link--active{background:var(--color-action);color:var(--color-action-text);font-weight:600}.admin-sidebar__link--disabled{opacity:.4;cursor:not-allowed;pointer-events:none}.admin-sidebar__divider{background:var(--color-border);height:1px;margin-block:var(--space-3)}.teacher-gate{justify-content:center;align-items:center;gap:var(--space-5);min-height:100dvh;padding:var(--space-5);background:var(--color-surface-muted);flex-direction:column;display:flex}.teacher-gate__footer{text-align:center;color:var(--color-text-muted);font-size:var(--font-size-small);flex-direction:column;align-items:center;gap:4px;display:flex}.teacher-gate__footer-line{margin:0}.teacher-gate__footer-site{color:var(--color-text-secondary);direction:ltr;font-weight:600;text-decoration:none}.teacher-gate__footer-site:hover{color:var(--color-action);text-decoration:underline}.teacher-gate__footer-made{flex-wrap:wrap;justify-content:center;align-items:center;gap:4px;margin:0;display:inline-flex}.teacher-gate__heart{color:#e0342b}.teacher-gate__checking{color:var(--color-text-muted);font-size:var(--font-size-body)}.teacher-gate__card{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);width:100%;max-width:380px;box-shadow:var(--shadow-md);padding:var(--space-6)}.teacher-gate__brand{color:var(--color-text-muted);font-size:var(--font-size-small);letter-spacing:.04em;flex-direction:column;align-items:center;gap:4px;margin-block-end:var(--space-5);font-weight:700;display:flex}.teacher-gate__brand-top{align-items:center;gap:var(--space-2);display:inline-flex}.teacher-gate__brand-logo{border-radius:var(--radius-md);flex-shrink:0;width:34px;height:34px;display:block}.teacher-gate__brand-ar{color:var(--color-text-primary);letter-spacing:normal;font-size:1.6rem}.teacher-gate__brand-en{text-transform:uppercase;text-align:center;letter-spacing:.25em;align-self:stretch;font-size:1.15rem}.teacher-gate__title{margin:0 0 var(--space-2);color:var(--color-text-primary);font-size:1.375rem;font-weight:700;line-height:var(--line-height-tight)}.teacher-gate__code-label{margin:0 0 var(--space-5);color:var(--color-text-secondary);font-size:var(--font-size-small)}.teacher-gate__code{color:var(--color-text-primary);letter-spacing:.08em;font-weight:700}.teacher-gate__form{gap:var(--space-3);flex-direction:column;display:flex}.teacher-gate__field-hint{color:var(--color-text-muted);font-size:var(--font-size-small);line-height:var(--line-height-body)}.teacher-gate__hint{margin:var(--space-4) 0 0;color:var(--color-text-muted);font-size:var(--font-size-small);line-height:var(--line-height-body);text-align:center}.teacher-portal__section-label{margin:0 0 var(--space-2);color:var(--color-text-secondary);font-size:var(--font-size-small);font-weight:600}.teacher-portal__curricula{gap:var(--space-2);flex-direction:column;margin-block-end:var(--space-4);display:flex}.teacher-portal__curriculum-btn{align-items:center;gap:var(--space-3);text-align:start;width:100%;padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-muted);cursor:pointer;transition:border-color .15s,background .15s;display:flex}.teacher-portal__curriculum-btn:hover{border-color:var(--color-action);background:var(--color-surface)}.teacher-portal__curriculum-info{flex:1;min-width:0}.teacher-portal__curriculum-name{color:var(--color-text-primary);font-weight:600;font-size:var(--font-size-body);white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.teacher-portal__curriculum-meta{font-size:var(--font-size-small);color:var(--color-text-secondary);white-space:nowrap;text-overflow:ellipsis;margin-block-start:2px;overflow:hidden}.teacher-portal__curriculum-arrow{color:var(--color-text-muted);flex-shrink:0;font-size:1rem}.teacher-portal__divider{align-items:center;gap:var(--space-3);margin-block:var(--space-4) var(--space-4);color:var(--color-text-muted);font-size:var(--font-size-small);display:flex}.teacher-portal__divider:before,.teacher-portal__divider:after{content:"";background:var(--color-border);flex:1;height:1px}.teacher-home{--color-surface-muted:#fafafa;--color-border:#eaeaea;background:var(--color-surface-muted);min-height:100dvh}.teacher-home__footer{align-items:center;gap:var(--space-1);padding:var(--space-5) var(--space-4) var(--space-6);text-align:center;border-block-start:1px solid var(--color-border);flex-direction:column;display:flex}.teacher-home__copyright{font-size:var(--font-size-small);color:var(--color-text-muted);letter-spacing:.01em;margin:0}.teacher-home__copyright strong{color:var(--color-text-secondary);font-weight:700}.teacher-home__policy-link{color:var(--color-text-muted);font:inherit;font-size:var(--font-size-small);text-underline-offset:3px;cursor:pointer;padding:var(--space-2);background:0 0;border:none;text-decoration:underline}.teacher-home__policy-link:hover{color:var(--color-action)}.teacher-policy{gap:var(--space-4);color:var(--color-text-secondary);flex-direction:column;line-height:1.75;display:flex}.teacher-policy__section{gap:var(--space-1);flex-direction:column;display:flex}.teacher-policy__heading{font-size:var(--font-size-body);color:var(--color-text-primary);margin:0;font-weight:700}.teacher-policy p{margin:0}.teacher-policy__warn{background:var(--color-warning-bg,#fff7e6);border:1px solid var(--color-warning,#e0a800);border-radius:var(--radius-md);padding:var(--space-2) var(--space-3);color:var(--color-text-primary)}.teacher-policy__list{gap:var(--space-1);flex-direction:column;margin:0;padding-inline-start:var(--space-4);display:flex}.teacher-help__tabs{gap:var(--space-1);background:var(--color-surface-muted);border:1px solid var(--color-border);border-radius:var(--radius-md);margin-block-end:var(--space-4);padding:3px;display:flex}.teacher-help__tab{color:var(--color-text-secondary);font:inherit;font-size:var(--font-size-small);padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;background:0 0;border:none;flex:auto;font-weight:600;transition:background .12s,color .12s}.teacher-help__tab--active{background:var(--color-surface);color:var(--color-action);box-shadow:0 1px 3px #0000001f}.feature-guide__intro{margin:0}.feature-guide__content-list{margin:var(--space-1) 0 0;gap:var(--space-2);flex-direction:column;padding:0;list-style:none;display:flex}.feature-guide__content-list li{align-items:center;gap:var(--space-2);color:var(--color-text-primary);font-weight:600;display:flex}.offline-guide{gap:var(--space-4);color:var(--color-text-secondary);flex-direction:column;line-height:1.7;display:flex}.offline-guide__intro{color:var(--color-text-primary);margin:0;font-weight:600}.offline-guide__device{gap:var(--space-2);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);flex-direction:column;display:flex}.offline-guide__device-title{font-size:var(--font-size-body);color:var(--color-text-primary);margin:0;font-weight:700}.offline-guide__steps{gap:var(--space-1);flex-direction:column;margin:0;padding-inline-start:var(--space-5);display:flex}.offline-guide__result{color:var(--color-success);margin:0;font-weight:600}.offline-guide__notes{gap:var(--space-2);padding:var(--space-3);border:1px solid var(--color-warning,#e0a800);border-radius:var(--radius-md);background:var(--color-warning-bg,#fff7e6);flex-direction:column;display:flex}.offline-guide__notes-title{font-size:var(--font-size-body);color:var(--color-text-primary);margin:0;font-weight:700}.offline-guide__notes-list{gap:var(--space-1);color:var(--color-text-primary);flex-direction:column;margin:0;padding-inline-start:var(--space-4);display:flex}.viewer-help__list{gap:var(--space-3);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.viewer-help__item{align-items:flex-start;gap:var(--space-3);display:flex}.viewer-help__icon{border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-border);width:36px;height:36px;color:var(--color-text-primary);flex:none;justify-content:center;align-items:center;display:flex}.viewer-help__text{flex-direction:column;gap:2px;padding-block-start:2px;display:flex}.viewer-help__title{font-size:var(--font-size-body);color:var(--color-text-primary);font-weight:700}.viewer-help__desc{font-size:var(--font-size-sm,.875rem);color:var(--color-text-secondary);line-height:1.6}.teacher-home__curricula-bar{align-items:stretch;gap:var(--space-2);padding:var(--space-3) var(--space-5);border-bottom:1px solid var(--color-border);background:var(--color-surface);-webkit-overflow-scrolling:touch;scrollbar-width:none;display:flex;overflow-x:auto}.teacher-home__curricula-bar::-webkit-scrollbar{display:none}.teacher-home__curric-card{padding:var(--space-2) var(--space-3);border:1.5px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);cursor:pointer;text-align:start;flex-direction:column;flex-shrink:0;align-items:flex-start;min-width:130px;max-width:180px;transition:border-color .15s,background .15s;display:flex}.teacher-home__curric-card:hover:not(:disabled),.teacher-home__curric-card--active{border-color:var(--color-action);background:var(--color-surface-muted)}.teacher-home__curric-card--expired{opacity:.65;cursor:default}.teacher-home__curric-card-actions{align-items:center;gap:var(--space-1);width:100%;margin-block-start:var(--space-1);display:flex}.teacher-home__curric-renew-btn{padding:2px var(--space-1);border-radius:var(--radius-sm);background:var(--color-action);color:#fff;text-align:center;white-space:nowrap;flex:1;font-size:.65rem;font-weight:600;line-height:1.4;text-decoration:none}.teacher-home__curric-renew-btn:hover{opacity:.85}.teacher-home__curric-remove-btn{border-radius:var(--radius-sm);width:20px;height:20px;color:var(--color-text-muted);cursor:pointer;background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;padding:0;font-size:.85rem;line-height:1;display:flex}.teacher-home__curric-remove-btn:hover{background:var(--color-danger-muted,color-mix(in srgb, var(--color-danger) 15%, transparent));color:var(--color-danger)}.teacher-home__curric-name{font-weight:600;font-size:var(--font-size-small);color:var(--color-text-primary);white-space:nowrap;text-overflow:ellipsis;max-width:100%;overflow:hidden}.teacher-home__curric-subject{color:var(--color-text-secondary);white-space:nowrap;text-overflow:ellipsis;max-width:100%;margin-block-start:2px;font-size:.7rem;overflow:hidden}.teacher-home__curric-expiry{margin-block-start:3px;font-size:.65rem}.teacher-home__curric-expiry--expired{color:var(--color-danger)}.teacher-home__curric-expiry--warning{color:var(--color-text-secondary)}.teacher-home__add-curric-btn{border:1.5px dashed var(--color-border);border-radius:var(--radius-md);cursor:pointer;width:44px;min-height:44px;color:var(--color-text-muted);background:0 0;flex-shrink:0;justify-content:center;align-items:center;font-size:1.5rem;transition:border-color .15s,color .15s;display:flex}.teacher-home__add-curric-btn:hover{border-color:var(--color-action);color:var(--color-action)}.teacher-home__loading{min-height:100dvh;color:var(--color-text-muted);justify-content:center;align-items:center;display:flex}.teacher-home__header{background:var(--color-surface);border-block-end:1px solid var(--color-border);padding:var(--space-5) var(--space-5) var(--space-4)}.teacher-home__topbar{align-items:center;gap:var(--space-4);flex-wrap:wrap;margin-block-end:var(--space-3);display:flex}.teacher-contacts{align-items:center;gap:var(--space-1);display:inline-flex}.teacher-contact{border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-surface);width:34px;height:34px;color:var(--color-text-secondary);justify-content:center;align-items:center;transition:color .12s,background .12s,border-color .12s;display:inline-flex}.teacher-contact:hover{color:var(--color-text-primary);background:var(--color-surface-muted,var(--color-surface));border-color:var(--color-border-strong)}.teacher-contact--wa:hover{color:#25d366;border-color:#25d366}.teacher-home__brand{color:var(--color-text-muted);font-size:var(--font-size-small);letter-spacing:.04em;flex-direction:column;align-items:center;gap:2px;font-weight:700;display:inline-flex}.teacher-home__brand-top{align-items:center;gap:var(--space-2);display:inline-flex}.teacher-home__brand-logo{border-radius:var(--radius-md);flex-shrink:0;width:28px;height:28px;display:block}.teacher-home__brand-ar{color:var(--color-text-primary);letter-spacing:normal;font-size:1.05rem}.teacher-home__brand-en{text-transform:uppercase}.teacher-home__title{margin:0 0 var(--space-3);color:var(--color-text-primary);font-size:clamp(1.25rem,3vw,1.75rem);font-weight:700;line-height:var(--line-height-tight)}.teacher-home__meta{align-items:center;gap:var(--space-1) var(--space-2);color:var(--color-text-secondary);font-size:var(--font-size-small);flex-wrap:wrap;display:flex}.teacher-home__meta-item{white-space:nowrap}.teacher-home__meta-sep{color:var(--color-border-strong)}.teacher-home__inner{width:min(100%,720px);padding:var(--space-6) var(--space-5);margin-inline:auto}.teacher-home__section{flex-direction:column;display:flex}.teacher-home__section-head{align-items:center;gap:var(--space-2);margin-block-end:var(--space-4);display:flex}.teacher-home__section-title{color:var(--color-text-primary);font-size:var(--font-size-section-title);font-weight:700;line-height:var(--line-height-tight);margin:0}.teacher-home__help-btn{width:1.75rem;height:1.75rem;color:var(--color-text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;padding:0;transition:background .12s,color .12s;display:inline-flex}.teacher-home__help-btn:hover{background:var(--color-surface-muted);color:var(--color-action)}.teacher-home__full-view-wrap{justify-content:center;gap:var(--space-3);padding-block:var(--space-6);border-block-start:1px solid var(--color-border);flex-wrap:wrap;margin-block-start:var(--space-4);display:flex}.teacher-expired-block{text-align:center;align-items:center;gap:var(--space-3);padding:var(--space-6) var(--space-4);flex-direction:column;max-width:420px;margin-inline:auto;display:flex}.teacher-expired-block__icon{font-size:2.5rem;line-height:1}.teacher-expired-block__title{color:var(--color-text-primary);margin:0;font-size:clamp(1.1rem,3vw,1.4rem);font-weight:700}.teacher-expired-block__msg{font-size:var(--font-size-small);color:var(--color-text-secondary);line-height:var(--line-height-normal);margin:0}.teacher-expired-block__actions{justify-content:center;gap:var(--space-2);flex-wrap:wrap;margin-block-start:var(--space-2);display:flex}.teacher-expired-block__contact{color:var(--color-text-muted);direction:ltr;margin:0;font-size:.75rem}.teacher-disabled-block{align-items:center;gap:var(--space-3);padding:var(--space-6) 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var(--color-border);border-radius:var(--radius-md);padding:var(--space-2) var(--space-4);font-size:var(--font-size-small);color:var(--color-text-secondary);box-shadow:var(--shadow-md,0 4px 12px #00000026);z-index:9000;text-align:center;max-width:calc(100vw - 16px);animation:4s forwards fadeInOut;position:fixed;inset-inline-start:50%;translate:-50%}@keyframes fadeInOut{0%{opacity:0;translate:-50% -8px}10%{opacity:1;translate:-50%}80%{opacity:1}to{opacity:0}}.codes-batches-section{margin-block:var(--space-4);padding:var(--space-3) var(--space-4);border:1px solid 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.ui-button{min-width:180px}.teacher-students{background:var(--color-surface-muted);min-height:100dvh;padding:var(--space-4);max-width:720px;margin-inline:auto}.teacher-students__loading{text-align:center;color:var(--color-text-muted);padding-block:var(--space-8)}.teacher-students__header{align-items:center;gap:var(--space-3);flex-wrap:wrap;margin-block-end:var(--space-5);display:flex}.teacher-students__title{font-size:var(--font-size-h3,1.25rem);color:var(--color-text-primary);flex:1;min-width:0;margin:0;font-weight:700}.teacher-students__count{color:var(--color-text-secondary);font-size:var(--font-size-small);white-space:nowrap;font-weight:600}.teacher-students__add-section{gap:var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4);flex-direction:column;margin-block-end:var(--space-5);display:flex}.teacher-students__add-inline{gap:var(--space-2);display:flex}.teacher-students__add-inline 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.12s,color .12s,border-color .12s}.teacher-students__action:hover:not(:disabled){border-color:var(--color-border-strong);color:var(--color-text-primary)}.teacher-students__action:disabled{opacity:.4;cursor:default}.teacher-students__action--icon{min-width:2rem;font-size:1rem;line-height:1}.teacher-students__action--save{border-color:var(--color-accent);color:var(--color-accent);font-weight:600}.teacher-students__action--danger{color:var(--color-danger)}.teacher-students__action--danger:hover:not(:disabled){border-color:var(--color-danger);color:var(--color-danger)}.teacher-tracking{--color-surface-muted:#fafafa;--color-border:#eaeaea;background:var(--color-surface-muted);min-height:100dvh;padding:var(--space-4)}.teacher-tracking__loading{text-align:center;color:var(--color-text-muted);padding-block:var(--space-8)}.teacher-tracking__header{align-items:center;gap:var(--space-3);flex-wrap:wrap;margin-block-end:var(--space-4);display:flex}.teacher-tracking__title{font-size:var(--font-size-h3,1.25rem);color:var(--color-text-primary);flex:1;min-width:0;margin:0;font-weight:700}@media (max-width:600px){.teacher-tracking{--font-size-h3:1rem;--font-size-section-title:.95rem;--font-size-body:.85rem;--font-size-control:.8rem;--font-size-small:.75rem;font-size:.85rem}}.teacher-tracking__sections{align-items:center;gap:var(--space-2);padding:var(--space-3);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);flex-wrap:wrap;margin-block-end:var(--space-4);display:flex}.teacher-tracking__section-label{align-items:center;gap:var(--space-2);font-size:var(--font-size-small);color:var(--color-text-secondary);font-weight:600;display:flex}.teacher-tracking__section-select{min-width:8rem}.teacher-tracking__section-input{max-width:14rem}.teacher-tracking__settings,.teacher-tracking__students-panel{background:var(--color-surface);border:1px solid 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var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-danger);cursor:pointer;font:inherit;font-size:var(--font-size-control);justify-content:center;align-items:center;gap:var(--space-1);display:inline-flex}.teacher-tracking__students-link{color:var(--color-accent);text-decoration:underline}.teacher-tracking__table-wrap{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);overflow-x:auto}.teacher-tracking__table{border-collapse:collapse;width:100%}.teacher-tracking__table th,.teacher-tracking__table td{border:1px solid var(--color-border);padding:var(--space-2);text-align:center;vertical-align:middle}.teacher-tracking__table thead 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var(--color-border-strong,#9aa1ab);background:var(--color-surface);cursor:pointer;color:#0000;border-radius:4px;justify-content:center;align-items:center;width:16px;height:16px;padding:0;font-size:11px;line-height:1;transition:background .1s,border-color .1s,color .1s;display:inline-flex}.tracking-mark--check{background:var(--color-success-bg);border-color:color-mix(in srgb, var(--color-success) 60%, white);color:var(--color-success);font-weight:700}.tracking-mark--wrong{background:var(--color-danger-bg);border-color:color-mix(in srgb, var(--color-danger) 60%, white);color:var(--color-danger);font-weight:700}.tracking-mark--legend{vertical-align:middle;cursor:default;width:14px;height:14px}.tracking-sheet-print-portal{pointer-events:none;position:fixed;top:0;left:-10000px}.tracking-sheet--print{color:#1b1b1d;box-sizing:border-box;width:210mm;font-family:var(--font-family-sans);-webkit-font-smoothing:antialiased;direction:rtl;background:#fff;padding:14mm 12mm}.tracking-sheet__head{border-bottom:.6pt solid #1b1b1d;justify-content:space-between;align-items:flex-end;gap:8mm;padding-bottom:3.5mm;display:flex}.tracking-sheet__head-title{text-align:left}.tracking-sheet__head-line1{font-size:12pt;font-weight:700}.tracking-sheet__head-line2{color:#6b6f76;margin-top:1.5mm;font-size:9pt}.tracking-sheet__head-meta{text-align:left;color:#6b6f76;font-size:9pt;line-height:1.7}.tracking-sheet--print .tracking-sheet__title{text-align:left;margin:0;font-size:16pt;font-weight:700;line-height:1.2}.tracking-sheet__subtitle{color:#6b6f76;justify-content:flex-start;align-items:center;gap:2.5mm;margin:1.5mm 0 0;font-size:9.5pt;display:flex}.tracking-sheet__meta{border:.6pt solid #dcdde1;border-radius:2.5mm;justify-content:space-between;align-items:flex-start;gap:5mm;margin-top:4mm;padding:3mm 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#dcdde1;border-top-right-radius:2.5mm;border-bottom-right-radius:2.5mm}.tracking-sheet--print thead th:last-child{border-left:.6pt solid #dcdde1;border-top-left-radius:2.5mm;border-bottom-left-radius:2.5mm}.tracking-sheet--print tbody tr:nth-child(2n) td{background:#fbfbfc}.tracking-sheet--print tbody tr:first-child td{padding-top:4.5pt}.tracking-sheet--print tbody tr:last-child td{border-bottom:.6pt solid #dcdde1}.tracking-sheet--print .tracking-sheet__th-num,.tracking-sheet--print .tracking-sheet__td-num{color:#8a8f97;font-variant-numeric:tabular-nums}.tracking-sheet--print .tracking-sheet__th-name,.tracking-sheet--print .tracking-sheet__td-name{text-align:right;padding-inline-start:2pt}.tracking-sheet--print .tracking-sheet__td-name{font-size:9pt}.tracking-sheet--print thead th>span:first-child{color:#33373d}.tracking-sheet--print .tracking-sheet__th-type-weight{color:#8a8f97;margin-top:.4mm;font-size:7pt;font-weight:400;display:block}.tracking-sheet--print .tracking-sheet__td-total{font-variant-numeric:tabular-nums;font-size:9.5pt;font-weight:700}.tracking-sheet--print .tracking-mark{color:#42464d;box-sizing:border-box;background:#fff;border:.6pt solid #c9cbd0;border-radius:1pt;justify-content:center;align-items:center;font-size:6.5pt;line-height:1;display:flex}.tracking-sheet--print .tracking-mark--check{color:#1e7a43;background:#eef7f1;border-color:#8bc3a0}.tracking-sheet--print .tracking-mark--wrong{color:#a8302f;background:#fdf1f1;border-color:#dda6a6}.tracking-sheet__legend{color:#6b6f76;align-items:center;gap:4mm;margin-top:4mm;font-size:8.5pt;display:flex}.tracking-sheet__legend-item{align-items:center;gap:1.5mm;display:flex}.tracking-sheet__legend-box{box-sizing:border-box;background:#fff;border:.6pt solid 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var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text-primary);padding:var(--space-3) var(--space-4);min-height:2.75rem;text-decoration:none;transition:background .1s,border-color .1s;display:flex}.teacher-tree__item:hover{background:var(--color-surface-muted);border-color:var(--color-border-strong)}.teacher-tree__type-badge{border:1px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-surface-muted);color:var(--color-text-muted);padding:.1em var(--space-2);flex-shrink:0;font-size:.75rem;font-weight:600}.teacher-tree__title{font-size:var(--font-size-body);line-height:var(--line-height-body);flex:1}.teacher-tree__pages{color:var(--color-text-muted);font-size:var(--font-size-small);flex-shrink:0}.teacher-tree__marks{flex-wrap:wrap;flex-shrink:0;gap:4px;display:inline-flex}.teacher-tree__mark{border-radius:999px;align-items:center;gap:3px;padding:1px 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10px;font-size:.78rem;font-weight:600;display:inline-flex}.teacher-tree__here svg{color:var(--color-action)}.teacher-tree__item.is-done{opacity:.62}.teacher-tree__item.is-done:hover{opacity:1}.teacher-tree__item.is-pulse{animation:1.1s ease-out 2 tree-here-pulse}@keyframes tree-here-pulse{0%{box-shadow:inset -3px 0 0 var(--color-action), 0 0 0 0 color-mix(in srgb, var(--color-action) 22%, transparent)}to{box-shadow:inset -3px 0 0 var(--color-action), 0 0 0 10px color-mix(in srgb, var(--color-action) 0%, transparent)}}.class-bar{margin-block-end:var(--space-5)}.class-bar__in{background:var(--color-surface);border-radius:1rem;align-items:center;gap:10px;padding:10px 14px;display:flex;box-shadow:0 1px 2px #0000000a,0 4px 14px #0000000d}.class-bar__where{cursor:pointer;min-width:0;color:var(--color-text-primary);font:inherit;text-align:start;background:0 0;border:0;flex:auto;align-items:center;gap:10px;padding:0;display:flex}.class-bar__where--none{cursor:default;color:var(--color-text-secondary)}.class-bar__where svg{color:var(--color-text-muted);flex:none}.class-bar__txt{flex-direction:column;min-width:0;line-height:1.35;display:flex}.class-bar__txt b{color:var(--color-text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.9rem;font-weight:500;overflow:hidden}.class-bar__sec{color:var(--color-text-secondary);font-weight:400}.class-bar__txt small{color:var(--color-text-muted);font-size:.76rem}.class-bar__classes{flex:none;gap:4px;display:flex}.class-bar__chip{border:1px solid var(--color-border);min-width:30px;max-width:96px;height:30px;color:var(--color-text-secondary);font:inherit;white-space:nowrap;text-overflow:ellipsis;cursor:pointer;background:0 0;border-radius:999px;padding:0 10px;font-size:.82rem;font-weight:500;overflow:hidden}.class-bar__chip:hover:not(.is-on){border-color:var(--color-border-strong);color:var(--color-text-primary)}.class-bar__chip.is-on{background:var(--color-action);border-color:var(--color-action);color:#fff;font-weight:500}.class-bar__go{border:1px solid var(--color-border-strong);background:var(--color-surface);color:var(--color-text-primary);border-radius:999px;flex:none;align-items:center;gap:5px;padding:5px 14px;font-size:.85rem;font-weight:600;text-decoration:none;display:inline-flex}.class-bar__go:hover{background:var(--color-surface-muted)}@media (max-width:640px){.class-bar__in{flex-wrap:wrap;row-gap:8px;padding:10px 12px}.class-bar__where{flex:1 1 0}.class-bar__classes{flex-basis:100%;order:3;overflow-x:auto}}.teacher-tree__brief-icon{border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-surface-muted);cursor:pointer;flex-shrink:0;justify-content:center;align-items:center;width:1.75rem;height:1.75rem;line-height:1;transition:background .12s,transform .12s;display:inline-flex}.teacher-tree__brief-icon:hover{background:color-mix(in srgb, #f6c343 30%, var(--color-surface));transform:scale(1.08)}.teacher-tree__exam-icon{border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-surface-muted);cursor:pointer;flex-shrink:0;justify-content:center;align-items:center;width:1.75rem;height:1.75rem;line-height:1;transition:background .12s,transform .12s;display:inline-flex}.teacher-tree__exam-icon:hover{background:color-mix(in srgb, var(--color-accent) 26%, var(--color-surface));transform:scale(1.08)}.exam-sheet--screen{gap:var(--space-4);flex-direction:column;display:flex}.exam-sheet__screen-note{padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);background:color-mix(in srgb, var(--color-accent) 10%, var(--color-surface));color:var(--color-text-secondary);font-size:var(--font-size-small);margin:0}.exam-sheet__q{gap:var(--space-2);flex-direction:column;display:flex}.exam-sheet__q-head{justify-content:space-between;align-items:baseline;gap:var(--space-2);border-block-end:1px solid var(--color-border);padding-block-end:var(--space-1);display:flex}.exam-sheet__q-title{font-size:var(--font-size-body,1rem);margin:0;font-weight:700}.exam-sheet__q-points{color:var(--color-text-secondary);font-size:var(--font-size-small);white-space:nowrap}.exam-sheet__items{gap:var(--space-2);flex-direction:column;margin:0;padding-inline-start:var(--space-5);display:flex}.exam-sheet__item{gap:var(--space-1);flex-direction:column;display:flex}.exam-sheet__stem{font-weight:600}.exam-shape-icon{vertical-align:middle;margin:0 2pt}.exam-meta{vertical-align:middle;gap:4px;margin-inline-start:var(--space-1);display:inline-flex}.exam-meta__chip{border-radius:var(--radius-pill);background:color-mix(in srgb, var(--color-accent) 12%, var(--color-surface));color:var(--color-accent);border:1px solid color-mix(in srgb, var(--color-accent) 30%, var(--color-border));padding:0 .4rem;font-size:.7rem;font-weight:600;line-height:1.4}.exam-meta__chip--diff{background:var(--color-surface-muted,var(--color-surface));color:var(--color-text-secondary);border-color:var(--color-border)}.exam-sheet__mcq{gap:2px var(--space-3);grid-template-columns:repeat(auto-fit,minmax(180px,1fr));margin:0;padding:0;list-style:none;display:grid}.exam-sheet__opt{align-items:center;gap:var(--space-2);display:flex}.exam-sheet__opt--correct{color:var(--color-success);font-weight:700}.exam-sheet__box{border:1px solid 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var(--color-border);display:block}.exam-sheet__essay{gap:var(--space-2);flex-direction:column;display:flex}.exam-sheet__essay-space{gap:var(--space-4);flex-direction:column;display:flex}.exam-sheet__essay-space span{border-block-end:1px solid var(--color-border);display:block}.exam-sheet__q-num{display:none}.exam-print-portal{pointer-events:none;position:fixed;top:0;left:-10000px}.brief-view{gap:var(--space-5);flex-direction:column;display:flex}.brief-head{flex-direction:column;gap:1px;min-width:0;display:flex}.brief-head__over{letter-spacing:.09em;color:var(--color-text-muted);margin:0;font-size:.68rem;font-weight:600}.brief-head__title{color:var(--color-text-primary);margin:0;font-size:1.125rem;font-weight:600;line-height:1.4}.brief-head__meta{color:var(--color-text-muted);margin:0;font-size:.75rem;line-height:1.6}.teacher-home 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var(--color-border);background:var(--color-surface);flex-shrink:0;justify-content:space-between;display:flex}.viewer-canvas{-webkit-user-select:none;user-select:none;width:100%;display:block;position:relative}.viewer-canvas__img{pointer-events:none;width:100%;height:auto;display:block}.viewer-canvas__overlay{width:100%;height:100%;position:absolute;top:0;left:0}.viewer-element{pointer-events:none;transition:opacity .35s;position:absolute;inset:0}.viewer-marker{color:#7a7a7a;cursor:pointer;z-index:9000;filter:drop-shadow(0 0 1.5px #fff)drop-shadow(0 0 1px #fff);background:0 0;border:none;justify-content:center;align-items:center;width:26px;height:26px;padding:0;line-height:0;transition:transform .15s,opacity .2s;display:flex;position:absolute;transform:translate(-50%,-50%)}.viewer-marker:hover{transform:translate(-50%,-50%)scale(1.25)}.viewer-detail-btn{z-index:9050;border:1px solid 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.ui-modal-overlay{z-index:9500}.viewer-thumb{align-items:center;gap:var(--space-1);border-radius:var(--radius-md);padding:var(--space-1);cursor:pointer;background:0 0;border:2px solid #0000;flex-direction:column;width:100%;transition:border-color .15s;display:flex}.viewer-thumb--active{border-color:var(--color-action)}.viewer-thumb:hover:not(.viewer-thumb--active){border-color:var(--color-border-strong)}.viewer-thumb__img{border-radius:var(--radius-md);width:100%;height:auto;display:block}.viewer-thumb__num{color:var(--color-text-muted);font-size:.7rem}.viewer-prefetch-bar{background:var(--color-surface);border-block-end:1px solid var(--color-border);padding:var(--space-2) var(--space-4);flex-shrink:0}.viewer-prefetch-bar--loading{gap:var(--space-1);flex-direction:column;display:flex}.viewer-prefetch-bar--done{color:var(--color-text-primary);text-align:center;font-size:11px}.viewer-prefetch-bar__text{color:var(--color-text-muted);font-size:11px}.viewer-prefetch-bar__track{background:var(--color-border);border-radius:2px;height:3px;overflow:hidden}.viewer-prefetch-bar__fill{background:var(--color-text-primary);border-radius:2px;height:100%;transition:width .2s}@media (max-width:600px){.teacher-viewer__body{flex-direction:column}.teacher-viewer__main{order:1;min-height:0}.teacher-viewer__canvas-wrap{align-items:center}.teacher-viewer__sidebar{border-inline-start:none;border-block-start:1px solid var(--color-border);flex-shrink:0;order:2;width:100%;height:auto;overflow:auto hidden}.teacher-viewer__sidebar-inner{gap:var(--space-2);padding:var(--space-2);flex-direction:row}.viewer-thumb{flex-shrink:0;width:auto}.viewer-thumb__img{width:auto;height:60px}.teacher-viewer__header{gap:var(--space-1);padding:var(--space-2) var(--space-3);flex-wrap:nowrap}.viewer-back{flex-shrink:0}.teacher-viewer__meta{min-width:0;overflow:hidden}.teacher-viewer__meta-item{text-overflow:ellipsis;min-width:0;overflow:hidden}.teacher-viewer__meta-extra{display:none}.viewer-back,.teacher-viewer__meta-item{font-size:.75rem}.teacher-viewer__brand{gap:var(--space-1)}.teacher-viewer__brand-logo{width:18px;height:18px}.teacher-viewer__brand-ar{font-size:.8rem}.teacher-viewer__brand .teacher-contact{width:24px;height:24px}.teacher-viewer__brand .teacher-contact svg{width:13px;height:13px}.teacher-viewer__canvas-wrap{padding:var(--space-3)}.viewer-toolbar{border-radius:var(--radius-md);gap:1px;padding:2px;bottom:96px;left:8px}.viewer-toolbar__btn{width:28px;height:28px}.viewer-toolbar__btn svg{width:15px;height:15px}.viewer-toolbar__sep{margin-block:1px}.viewer-marker,.viewer-marker svg{width:18px;height:18px}.viewer-group-badge{gap:2px;padding:1px 5px;font-size:10px}.viewer-group-badge svg{width:11px;height:11px}}.assistant-login-shell{background:var(--color-bg);min-height:100dvh;padding:var(--space-4);justify-content:center;align-items:center;display:flex}.assistant-login-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);width:100%;max-width:400px;padding:var(--space-6);gap:var(--space-4);flex-direction:column;display:flex}.assistant-login__title{font-size:var(--text-xl);color:var(--color-text);text-align:center;margin:0;font-weight:600}.assistant-login__form{gap:var(--space-4);flex-direction:column;display:flex}.assistant-login__error{background:var(--color-error-bg,#fff1f0);border:1px solid var(--color-error,#e53e3e);color:var(--color-error,#c53030);border-radius:var(--radius-md);padding:var(--space-3);font-size:var(--text-sm);margin:0}.assistant-login__submit{margin-top:var(--space-2);padding:var(--space-3) var(--space-4);background:var(--color-action);color:var(--color-action-text);border:1px solid var(--color-action);border-radius:var(--radius-md);font-size:var(--text-base);cursor:pointer;font-weight:600;transition:opacity .15s}.assistant-login__submit:hover:not(:disabled){background:var(--color-action-hover);border-color:var(--color-action-hover)}.assistant-login__submit:disabled{opacity:.6;cursor:not-allowed}.assistant-home-shell{background:var(--color-bg);min-height:100dvh;padding:var(--space-6) var(--space-4);flex-direction:column;align-items:center;display:flex}.assistant-home-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);width:100%;max-width:1000px;padding:var(--space-6);gap:var(--space-5);flex-direction:column;display:flex}.assistant-home__header{justify-content:space-between;align-items:flex-start;gap:var(--space-4);display:flex}.my-financial{gap:var(--space-3);flex-direction:column;display:flex}.my-financial__loading{color:var(--color-text-muted);font-size:var(--text-sm)}.my-financial__title{font-size:var(--text-lg);color:var(--color-text);margin:0;font-weight:600}.my-financial__tiles{gap:var(--space-3);grid-template-columns:repeat(auto-fit,minmax(140px,1fr));display:grid}.my-financial__tile{gap:var(--space-1);padding:var(--space-3) var(--space-4);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);flex-direction:column;display:flex}.my-financial__tile-label{font-size:var(--text-xs);color:var(--color-text-muted)}.my-financial__tile-value{font-size:var(--text-lg);font-variant-numeric:tabular-nums;color:var(--color-text);font-weight:700}.my-financial__tile--due{border-color:var(--color-danger,#c41e3a)}.my-financial__tile--due .my-financial__tile-value{color:var(--color-danger,#c41e3a)}.my-financial__tile--settled{border-color:var(--color-success,#22c55e)}.my-financial__tile--settled .my-financial__tile-value{color:var(--color-success,#22c55e)}.my-financial__history-title{font-size:var(--text-sm);color:var(--color-text-muted);margin:var(--space-2) 0;font-weight:600}.my-financial__history-empty{color:var(--color-text-muted);font-size:var(--text-sm);margin:0;font-style:italic}.my-financial__table{border-collapse:collapse;width:100%;font-size:var(--text-sm)}.my-financial__table th,.my-financial__table td{text-align:start;padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--color-border)}.my-financial__table th{color:var(--color-text-muted);font-weight:600}.assistant-guide-link{align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);color:inherit;text-decoration:none;transition:border-color .15s,box-shadow .15s;display:flex}.assistant-guide-link:hover{border-color:var(--color-primary);box-shadow:0 0 0 2px color-mix(in srgb, var(--color-primary) 15%, transparent)}.assistant-guide-link__text{flex-direction:column;flex:1;gap:2px;display:flex}.assistant-guide-link__title{color:var(--color-text);font-weight:700}.assistant-guide-link__desc{font-size:var(--text-sm);color:var(--color-text-muted)}.assistant-guide-link__chevron{color:var(--color-text-muted);font-size:1.4rem}.guide-page__header{align-items:center;gap:var(--space-3);flex-wrap:wrap;display:flex}.guide-page__back{color:var(--color-text-muted);font-size:var(--text-sm);text-decoration:none}.guide-page__back:hover{color:var(--color-primary)}.guide-page__title{font-size:var(--text-xl);color:var(--color-text);margin:0;font-weight:700}.guide-page__intro{color:var(--color-text-muted);margin:0}.guide-section{gap:var(--space-2);border-top:1px solid var(--color-border);flex-direction:column;padding-block-start:var(--space-2);display:flex}.guide-section__title{font-size:var(--text-lg);color:var(--color-text);margin:0;font-weight:700}.guide-list,.guide-steps{gap:var(--space-2);color:var(--color-text);flex-direction:column;margin:0;padding-inline-start:var(--space-5);line-height:1.7;display:flex}.guide-rule{padding:var(--space-2) var(--space-3);background:color-mix(in srgb, var(--color-primary) 8%, var(--color-bg));border-inline-start:3px solid var(--color-primary);border-radius:var(--radius-sm);margin:0}.guide-section--checklist{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-4)}.guide-checklist{gap:var(--space-2);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.guide-checklist li{padding-inline-start:1.8rem;line-height:1.6;position:relative}.guide-checklist li:before{content:"☐";color:var(--color-primary);font-size:1.1rem;position:absolute;inset-inline-start:0}.guide-kbd{background:var(--color-surface-muted,#f1f1f1);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text);padding:1px 6px;font-family:inherit;font-size:.85em;display:inline-block}.guide-swatch{vertical-align:middle;border:1px solid #0003;border-radius:3px;width:.9em;height:.9em;margin-inline-start:4px;display:inline-block}.guide-mark{color:var(--color-text-muted);font-weight:700;display:inline-block}.guide-mark--done{color:var(--color-success,#22c55e)}.editor-guide-btn{padding:var(--space-1) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-muted);font-size:var(--text-sm);cursor:pointer;white-space:nowrap;background:0 0}.editor-guide-btn:hover{border-color:var(--color-primary);color:var(--color-primary)}.editor-tips{gap:var(--space-2);color:var(--color-text);flex-direction:column;margin:0;padding-inline-start:var(--space-5);line-height:1.7;display:flex}.assistant-home__greeting{font-size:var(--text-xl);color:var(--color-text);margin:0;font-weight:600}.assistant-home__email{font-size:var(--text-sm);color:var(--color-text-muted);margin:var(--space-1) 0 0}.assistant-home__logout{padding:var(--space-2) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-muted);font-size:var(--text-sm);cursor:pointer;white-space:nowrap;background:0 0;transition:border-color .15s,color .15s}.assistant-home__logout:hover{border-color:var(--color-error,#e53e3e);color:var(--color-error,#c53030)}.assistant-home__loading{color:var(--color-text-muted);margin:var(--space-8) auto}.assistant-home__placeholder{font-size:var(--text-sm);color:var(--color-text-muted);margin:0}.assignment-list{gap:var(--space-3);flex-direction:column;display:flex}.assignment-list__title{font-size:var(--text-base);color:var(--color-text);margin:0;font-weight:600}.assignment-list__empty{font-size:var(--text-sm);color:var(--color-text-muted);padding:var(--space-4) 0;margin:0}.assignment-list__grid{gap:var(--space-3);grid-template-columns:repeat(auto-fill,minmax(240px,1fr));display:grid}.assignment-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-4);gap:var(--space-2);flex-direction:column;transition:border-color .15s,box-shadow .15s;display:flex}.assignment-card--clickable{cursor:pointer}.assignment-card--clickable:hover{border-color:var(--color-primary);box-shadow:0 0 0 2px color-mix(in srgb, var(--color-primary) 15%, transparent)}.assignment-card--no-version{opacity:.7}.assignment-card__subject{font-size:var(--text-xs);color:var(--color-primary);text-transform:uppercase;letter-spacing:.04em;font-weight:600}.assignment-card__meta{font-size:var(--text-xs);color:var(--color-text-muted)}.assignment-card__title{font-size:var(--text-sm);color:var(--color-text);flex:1;font-weight:500}.assignment-card__footer{justify-content:space-between;align-items:center;gap:var(--space-2);margin-top:var(--space-2);display:flex}.assignment-card__status{font-size:var(--text-xs);border-radius:var(--radius-sm);background:var(--color-border);color:var(--color-text-muted);padding:2px 6px}.assignment-card__status--in_progress{background:color-mix(in srgb, var(--color-primary) 15%, transparent);color:var(--color-primary)}.assignment-card__status--submitted{color:#15803d;background:#22c55e26}.assignment-card__status--reviewed{color:#7e22ce;background:#a855f726}.assignment-card__open{font-size:var(--text-xs);color:var(--color-primary);font-weight:500}.assignment-card__no-version{font-size:var(--text-xs);color:var(--color-text-muted)}.assignment-card__actions{align-items:center;gap:var(--space-2);flex-wrap:wrap;display:flex}.assignment-card__open{font-size:var(--text-xs);color:var(--color-action);cursor:pointer;font-weight:500}.assignment-card__submit{font-size:var(--text-xs);color:var(--color-action-text);background:var(--color-success);border-radius:var(--radius-sm);cursor:pointer;border:none;padding:3px 10px;font-weight:600;transition:opacity .15s}.assignment-card__submit:hover{opacity:.85}.assignment-progress{margin-block:var(--space-2);flex-direction:column;gap:3px;display:flex}.assignment-progress__track{background:var(--color-border);border-radius:3px;height:6px;overflow:hidden}.assignment-progress__fill{background:var(--color-success);border-radius:3px;height:100%;transition:width .3s}.assignment-progress__label{color:var(--color-text-muted);font-variant-numeric:tabular-nums;font-size:11px}.assignment-list__error{color:var(--color-danger);font-size:var(--text-sm);padding:var(--space-2);border:1px solid var(--color-danger);border-radius:var(--radius-sm);background:var(--color-danger-bg)}.assignment-financial{margin-block:var(--space-3);padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface-muted);gap:var(--space-1);flex-direction:column;display:flex}.assignment-financial__row{font-size:var(--text-xs);color:var(--color-text-muted);justify-content:space-between;align-items:center;display:flex}.assignment-financial__row--total{border-top:1px solid var(--color-border);margin-top:var(--space-1);padding-top:var(--space-1);color:var(--color-text-primary);font-weight:600}.assignment-financial__label{font-size:var(--text-xs)}.assignment-financial__value{font-variant-numeric:tabular-nums;font-size:var(--text-xs)}.assignment-financial__amount{font-size:var(--text-sm);color:var(--color-success);font-variant-numeric:tabular-nums;font-weight:700}.assignment-financial__status{font-size:var(--text-xs);text-align:center;padding:2px var(--space-2);border-radius:var(--radius-sm);margin-top:var(--space-1);font-weight:600}.assignment-financial__status--pending{color:var(--color-text-muted);background:var(--color-border)}.assignment-financial__status--approved{color:var(--color-warning);background:var(--color-warning-bg)}.assignment-financial__status--paid{color:var(--color-success);background:var(--color-success-bg)}.assign-price-field{margin-top:var(--space-3);gap:var(--space-1);flex-direction:column;display:flex}.assign-price-field__label{font-size:var(--text-sm);color:var(--color-text-muted)}.assign-price-field__input{width:160px;padding:var(--space-1) var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--text-sm);background:var(--color-surface);color:var(--color-text-primary)}.assign-price-field__input:focus{border-color:var(--color-action);outline:none}.assignment-no-price{color:var(--color-text-muted)}.book-card__progress{flex-direction:column;gap:2px;margin-block-start:var(--space-1);display:flex}.book-card__progress-bar-track{background:var(--color-border);border-radius:2px;height:4px;overflow:hidden}.book-card__progress-bar{background:var(--color-success);border-radius:2px;height:4px;transition:width .3s}.book-card__progress-label{color:var(--color-text-muted);font-size:11px}.back-link{color:var(--color-text-muted);font-size:var(--text-sm);cursor:pointer;background:0 0;border:none;padding:0;transition:color .15s}.back-link:hover{color:var(--color-text)}body:has(.portfolio){--color-surface-muted:#fafafa;--color-border:#eaeaea;--color-accent:var(--color-action);background:var(--color-surface-muted)}.portfolio{max-width:1000px;padding:var(--space-4);gap:var(--space-4);flex-direction:column;margin-inline:auto;display:flex}.portfolio__loading{padding:var(--space-8);text-align:center;color:var(--color-text-secondary)}.portfolio__header{align-items:center;gap:var(--space-3);flex-wrap:wrap;display:flex}.portfolio__title{font-size:var(--font-size-section-title);flex:auto;margin:0;font-weight:700}.portfolio__header-actions{align-items:center;gap:var(--space-2);display:flex}.portfolio__saved-flash{color:var(--color-success,#2e7d32);font-size:var(--font-size-small)}.portfolio__clear-btn{min-height:2.5rem;padding:0 var(--space-4);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-danger);cursor:pointer;font:inherit;font-size:var(--font-size-control);justify-content:center;align-items:center;gap:var(--space-1);display:inline-flex}.portfolio__clear-btn:hover{background:var(--color-surface-muted)}.portfolio__layout{gap:var(--space-4);grid-template-columns:200px 1fr;align-items:start;display:grid}.portfolio__nav{top:var(--space-3);flex-direction:column;gap:2px;display:flex;position:sticky}.portfolio__nav-item{text-align:start;border-radius:var(--radius-md);color:var(--color-text-primary);cursor:pointer;font:inherit;font-size:var(--font-size-small);padding-block:var(--space-2);padding-inline:var(--space-3);background:0 0;border:1px solid #0000}.portfolio__nav-item:hover{background:var(--color-surface-muted,var(--color-surface))}.portfolio__nav-item--active{background:color-mix(in srgb, var(--color-accent) 14%, var(--color-surface));border-color:var(--color-accent);color:var(--color-accent);font-weight:700}.portfolio__content{min-width:0}.portfolio-section{gap:var(--space-3);flex-direction:column;display:flex}.portfolio-section__head{justify-content:space-between;align-items:center;gap:var(--space-3);flex-wrap:wrap;display:flex}.portfolio-section__head-actions{gap:var(--space-2);flex-wrap:wrap;flex:0 auto;display:flex}.portfolio-section__title{font-size:var(--font-size-large);margin:0;font-weight:700}.portfolio-section__count{color:var(--color-text-secondary);font-weight:400}.portfolio-section__hint{color:var(--color-text-secondary);font-size:var(--font-size-small);margin:0}.portfolio-form{gap:var(--space-3);flex-direction:column;display:flex}.portfolio-form--grid{gap:var(--space-3);grid-template-columns:repeat(auto-fit,minmax(220px,1fr));display:grid}.portfolio-form--grid .ui-form-field:has(textarea){grid-column:1/-1}.portfolio-form__textarea{resize:vertical;width:100%;height:auto;min-height:7rem;font:inherit;padding-block:var(--space-2);line-height:1.6}.portfolio-items{gap:var(--space-2);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.portfolio-item{justify-content:space-between;align-items:flex-start;gap:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);padding:var(--space-3);display:flex}.portfolio-item__body{gap:var(--space-1);flex-direction:column;min-width:0;display:flex}.portfolio-item__primary{color:var(--color-text-primary);font-weight:700}.portfolio-item__meta{gap:var(--space-1) var(--space-3);color:var(--color-text-secondary);font-size:var(--font-size-small);flex-wrap:wrap;display:flex}.portfolio-item__meta-label{font-weight:600}.portfolio-item__actions{gap:var(--space-1);flex:none;display:flex}.portfolio-item__btn{border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text-secondary);cursor:pointer;font:inherit;font-size:var(--font-size-small);padding-block:2px;padding-inline:var(--space-2)}.portfolio-item__btn--danger{color:var(--color-danger)}.portfolio-dashboard{gap:var(--space-4);flex-direction:column;display:flex}.portfolio-dashboard__greeting{color:var(--color-text-secondary);margin:0}.portfolio-dashboard__completion{gap:var(--space-1);flex-direction:column;display:flex}.portfolio-dashboard__completion-head{font-size:var(--font-size-small);color:var(--color-text-secondary);justify-content:space-between;display:flex}.portfolio-dashboard__completion-pct{color:var(--color-accent);font-weight:700}.portfolio-dashboard__bar{border-radius:var(--radius-pill);background:var(--color-surface-muted,var(--color-border));block-size:8px;overflow:hidden}.portfolio-dashboard__bar-fill{background:var(--color-accent);block-size:100%;transition:inline-size .25s}.portfolio-dashboard__cards{gap:var(--space-3);grid-template-columns:repeat(auto-fit,minmax(130px,1fr));display:grid}.portfolio-stat{align-items:center;gap:var(--space-1);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);cursor:pointer;font:inherit;padding-block:var(--space-4);padding-inline:var(--space-2);flex-direction:column;display:flex}.portfolio-stat:hover{border-color:var(--color-accent)}.portfolio-stat__num{font-size:var(--font-size-page-title,1.75rem);color:var(--color-accent);font-weight:800;line-height:1}.portfolio-stat__label{font-size:var(--font-size-small);color:var(--color-text-secondary);text-align:center}@media (max-width:640px){.portfolio__layout{grid-template-columns:1fr}.portfolio__nav{z-index:5;gap:var(--space-2);-webkit-overflow-scrolling:touch;padding-block:var(--space-2);background:var(--color-bg);scrollbar-width:none;flex-flow:row;position:sticky;top:0;overflow-x:auto}.portfolio__nav::-webkit-scrollbar{display:none}.portfolio__nav-item{white-space:nowrap;border-radius:var(--radius-pill);flex:none}.portfolio__nav-item:not(.portfolio__nav-item--active){background:var(--color-surface);border-color:var(--color-border)}}.lib-modal{gap:var(--space-3);flex-direction:column;display:flex}.lib-modal__filters{gap:var(--space-1);flex-wrap:wrap;display:flex}.lib-modal__chip{border:1px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-surface);color:var(--color-text-secondary);cursor:pointer;font:inherit;font-size:var(--font-size-small);padding-block:var(--space-1);padding-inline:var(--space-3)}.lib-modal__chip--active{background:color-mix(in srgb, var(--color-accent) 16%, var(--color-surface));border-color:var(--color-accent);color:var(--color-accent);font-weight:700}.lib-modal__grid{gap:var(--space-3);grid-template-columns:repeat(auto-fill,minmax(240px,1fr));display:grid}.lib-card{gap:var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);padding:var(--space-3);flex-direction:column;display:flex}.lib-card__cat{border-radius:var(--radius-pill);background:var(--color-surface-muted,var(--color-border));color:var(--color-text-secondary);font-size:var(--font-size-small);padding-block:2px;padding-inline:var(--space-2);align-self:flex-start}.lib-card__title{color:var(--color-text-primary);font-weight:700}.lib-card__desc{color:var(--color-text-secondary);font-size:var(--font-size-small);flex:auto;margin:0;line-height:1.6}.lib-card__foot{justify-content:flex-start;display:flex}.portfolio-image-field__btn{border:1px solid 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.5rem;font-size:.72rem;font-weight:600}.att__alert--over{background:var(--color-danger-bg);color:var(--color-danger)}.att__alert--near{background:var(--color-warning-bg);color:var(--color-warning)}.att__status{border:1px solid var(--color-border);background:var(--color-surface);width:6.5rem;min-height:2.75rem;color:var(--color-text-muted);font:inherit;cursor:pointer;border-radius:.75rem;flex-shrink:0;font-size:.85rem;font-weight:600;transition:background .1s,color .1s,border-color .1s}.att__status--absent{background:var(--color-danger-bg);border-color:color-mix(in srgb, var(--color-danger) 35%, transparent);color:var(--color-danger)}.att__status--excused{background:var(--color-surface-muted);border-color:var(--color-text-muted);color:var(--color-text-secondary)}.att__status--late{background:var(--color-warning-bg);border-color:color-mix(in srgb, var(--color-warning) 35%, 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var(--color-border)}.tp__num{width:1.5rem;color:var(--color-text-muted);text-align:center;flex-shrink:0;font-size:.75rem}.tp__name{min-width:0;color:var(--color-text-primary);flex:auto;font-weight:500;line-height:1.4}.tp__score{min-width:2rem;color:var(--color-text-muted);text-align:center;flex-shrink:0;font-size:.8rem}.tp__mark{background:var(--color-surface);width:2.75rem;height:2.75rem;font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;border:1.5px solid #00000024;border-radius:.75rem;flex-shrink:0;justify-content:center;align-items:center;padding:0;font-size:1.2rem;font-weight:700;line-height:1;display:inline-flex}.tp__mark.tracking-mark--check{background:var(--color-surface);color:var(--color-text-primary);border-color:#00000038}.tp__mark.tracking-mark--wrong{background:var(--color-danger-bg);border-color:color-mix(in srgb, var(--color-danger) 40%, 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.8rem;font-size:.85rem}@media (max-width:640px){.teacher-tracking__undo{inset-inline:var(--space-3);bottom:calc(var(--space-3) + env(safe-area-inset-bottom,0px));z-index:60;padding:var(--space-3);background:var(--color-surface);color:var(--color-text-primary);margin:0;position:fixed;box-shadow:0 8px 28px #0000002e}.teacher-tracking__undo-btn{min-height:2.25rem;padding-inline:1rem}}.att__link{color:var(--color-text-secondary);font:inherit;font-size:var(--font-size-small);text-underline-offset:3px;cursor:pointer;background:0 0;border:none;padding:.25rem .4rem;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}.att__link:hover{color:var(--color-text-primary)}.att__past{align-items:center;gap:var(--space-2);flex-wrap:wrap;display:inline-flex}.ui-input.att__past-date{width:auto;height:2.25rem}.att__bar-spacer{flex:auto}.att__error{padding:var(--space-2) 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h1{color:#16171a;margin:0;font-size:20pt;font-weight:700;line-height:1.4}.rep-st{color:var(--rep-muted);margin-top:1.5mm;font-size:11.5pt}.rep-el{justify-content:center;margin-top:4mm;display:flex}.rep-el span{background:var(--rep-soft);color:var(--rep-acc);border:.6pt solid var(--rep-edge);border-radius:99mm;align-items:center;gap:2mm;padding:1.6mm 5mm;font-size:9.5pt;font-weight:700;display:inline-flex}.rep-el i{background:var(--rep-acc);border-radius:50%;width:2mm;height:2mm;display:block}.rep-grid{border-collapse:separate;border-spacing:0;border:.8pt solid var(--rep-line);table-layout:fixed;border-radius:3mm;width:100%;margin-top:6mm}.rep-grid td{vertical-align:top;border-bottom:.6pt solid var(--rep-line);width:50%;padding:2.8mm 4mm;font-size:10.5pt;line-height:1.6}.rep-grid td:first-child{border-left:.6pt solid var(--rep-line)}.rep-grid tr:last-child td{border-bottom:none}.rep-k{color:var(--rep-acc);white-space:nowrap;font-weight:700}.rep-v{font-weight:600}.rep-sec{margin-top:6mm}.rep-sec h2{color:var(--rep-acc);align-items:center;gap:2.5mm;margin:0 0 2.5mm;font-size:12pt;font-weight:700;display:flex}.rep-sec h2:before{content:"";background:var(--rep-acc);border-radius:1mm;flex:0 0 3mm;height:3mm}.rep-sec h2:after{content:"";background:var(--rep-line);flex:auto;height:.6pt}.rep-sec p{color:#2e3035;margin:0;font-size:11pt;line-height:1.95}.rep-sec ul,.rep-sec ol{margin:0;padding:0;list-style:none}.rep-sec li{color:#2e3035;gap:2.5mm;margin-bottom:1.6mm;font-size:11pt;line-height:1.75;display:flex}.rep-dot{background:var(--rep-acc);border-radius:50%;flex:0 0 2mm;height:2mm;margin-top:2.4mm}.rep-n{background:var(--rep-soft);height:6mm;color:var(--rep-acc);border-radius:50%;flex:0 0 6mm;justify-content:center;align-items:center;margin-top:.3mm;font-size:9pt;font-weight:700;line-height:1;display:flex}.rep-ph{flex-wrap:wrap;gap:3.5mm;display:flex}.rep-fig{border:.8pt solid var(--rep-line);background:#fff;border-radius:3mm;width:calc(50% - 1.75mm);margin:0;overflow:hidden}.rep-fig--wide{width:100%}.rep-fig__im{background:#f5f6f8;justify-content:center;align-items:center;height:62mm;display:flex}.rep-fig--wide .rep-fig__im{height:105mm}.rep-fig__im img{max-width:100%;max-height:100%;display:block}.rep-fig figcaption{color:#3a3d44;text-align:center;border-top:.6pt solid var(--rep-line);padding:2mm 3mm;font-size:9.5pt;font-weight:600;line-height:1.6}.rep-sig{justify-content:space-between;align-items:flex-end;gap:16mm;margin-top:10mm;padding-bottom:2mm;display:flex}.rep-sig__c{flex:0 72mm}.rep-sig__k{color:var(--rep-muted);font-size:9.5pt;font-weight:600}.rep-sig__n{min-height:6mm;margin-top:1mm;font-size:12pt;font-weight:700}.rep-sig__l{color:#9aa0a8;border-top:.8pt 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