.subject-popover[data-v-a2eeb65a]{width:min(29rem,calc(100vw - 2rem));max-height:min(540px,calc(100vh - 118px));overflow:hidden;border:1px solid rgb(var(--edu-border-decorative-rgb)/.95);border-radius:var(--radius-shell);background:linear-gradient(180deg,rgb(var(--edu-surface-card-rgb)/.96),rgb(var(--edu-surface-page-rgb)/.96));box-shadow:0 24px 56px rgb(var(--edu-text-primary-rgb)/.16),0 1px rgb(var(--edu-surface-card-rgb)/.94) inset;backdrop-filter:blur(24px) saturate(150%)}.subject-popover--panel[data-v-a2eeb65a]{width:100%;max-height:none;border-color:var(--edu-border-decorative);background:rgb(var(--edu-surface-card-rgb)/.96);box-shadow:0 1px rgb(var(--edu-surface-card-rgb)/.92) inset,0 14px 34px rgb(var(--edu-text-primary-rgb)/.045);backdrop-filter:none}.subject-popover--panel .subject-popover__bar[data-v-a2eeb65a]{min-height:74px;padding:15px 24px 12px}.subject-popover--panel .subject-popover__heading h2[data-v-a2eeb65a]{font-size:19px;font-weight:780}.subject-popover--panel 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rgb(var(--edu-state-error-text-rgb)/.14);border-radius:var(--radius-control-inner);background:rgb(var(--edu-surface-card-rgb)/.88);color:var(--edu-state-error-text);font-size:19px;font-weight:750;line-height:1;transition:background .16s ease,border-color .16s ease,transform .16s ease}.subject-popover__remove[data-v-a2eeb65a]:hover{border-color:rgb(var(--edu-state-error-text-rgb)/.28);background:var(--edu-surface-card);transform:translateY(-1px)}.subject-popover__add-card[data-v-a2eeb65a]{display:flex;width:calc(100% - 24px);min-height:52px;align-items:center;justify-content:center;gap:8px;margin:12px;border:1.5px dashed rgb(var(--edu-resource-question-strong-rgb)/.34);border-radius:var(--radius-control);background:rgb(var(--edu-surface-card-rgb)/.72);color:var(--edu-resource-question-strong);font-size:14px;font-weight:800;letter-spacing:0;transition:background .16s ease,border-color .16s ease,transform .16s 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14px}.subject-popover__loading[data-v-a2eeb65a]{display:flex;min-height:168px;align-items:center;justify-content:center}.subject-popover__spinner[data-v-a2eeb65a]{width:22px;height:22px;border:2px solid rgb(var(--edu-text-body-rgb)/.14);border-top-color:var(--edu-resource-question-strong);border-radius:var(--radius-pill);animation:subject-spin-a2eeb65a .7s linear infinite}.custom-scrollbar[data-v-a2eeb65a]{scrollbar-width:thin;scrollbar-color:rgb(var(--edu-text-body-rgb)/.18) transparent}.custom-scrollbar[data-v-a2eeb65a]::-webkit-scrollbar{width:4px;height:4px}.custom-scrollbar[data-v-a2eeb65a]::-webkit-scrollbar-thumb{background-color:rgb(var(--edu-text-body-rgb)/.18);border-radius:var(--radius-pill)}@keyframes subject-spin-a2eeb65a{to{transform:rotate(360deg)}}.settings-overlay>.absolute{backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px)}.account-menu-profile,.account-menu-item{display:flex;width:calc(100% - 1rem);min-height:44px;align-items:center;gap:12px;border-radius:var(--radius-control-inner);padding:8px 12px;text-align:left;transition:background-color .15s ease,color .15s ease}.account-menu-profile{justify-content:space-between;cursor:pointer}.account-menu-profile:hover,.account-menu-item:hover{background:var(--edu-surface-page);transform:none}.account-menu-profile:focus-visible,.account-menu-item:focus-visible{outline:2px solid var(--edu-resource-question-fill);outline-offset:2px}.account-menu-item{cursor:pointer}.account-menu-label{color:var(--edu-text-body);font-size:15px;line-height:22px;font-weight:400}.account-menu-item--destructive:hover{background:var(--edu-surface-card);color:var(--edu-state-error-text)}.account-menu-icon,.account-menu-chevron{display:inline-block;flex-shrink:0;background:currentColor}.account-menu-icon{width:20px;height:22px;flex:0 0 20px;color:var(--edu-text-body);-webkit-mask-size:17px 17px;mask-size:17px 17px;transform:translateY(1px)}.account-menu-chevron{width:14px;height:20px;color:var(--edu-text-muted)}.account-menu-divider{height:1px;margin:8px 16px;background:var(--edu-surface-page)}.profile-modal{max-height:min(760px,calc(100dvh - 24px));display:flex;flex-direction:column}.profile-modal__header,.profile-modal__footer{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 26px}.profile-modal__header{border-bottom:1px solid var(--edu-border-decorative)}.profile-modal__header h2{margin:0;color:var(--edu-text-primary);font-size:26px;font-weight:850;letter-spacing:-.03em}.profile-modal__header p{margin:5px 0 0;color:var(--edu-text-muted);font-size:13px;line-height:1.45}.profile-modal__body{min-height:0;overflow-y:auto;padding:24px 26px 8px}.profile-avatar-editor{display:flex;flex-direction:column;align-items:center}.profile-avatar-preview{position:relative;display:block;width:148px;height:148px;overflow:visible;border:4px solid var(--edu-action-primary-background);border-radius:var(--radius-pill);background:var(--edu-surface-page);box-shadow:0 0 0 5px var(--edu-surface-page)}.profile-avatar-trigger{display:block;border:0;border-radius:var(--radius-pill);background:transparent;padding:0;cursor:pointer}.profile-avatar-trigger:focus-visible{outline:3px solid rgb(var(--edu-resource-question-strong-rgb)/.42);outline-offset:8px}.profile-avatar-trigger:hover .profile-avatar-preview{border-color:var(--edu-resource-question-strong);box-shadow:0 0 0 5px var(--edu-surface-page),0 4px 14px rgb(var(--edu-shadow-ink-rgb)/.1)}.profile-avatar-preview>img,.profile-avatar-preview>.profile-avatar-fallback{overflow:hidden;border-radius:inherit}.profile-avatar-edit{position:absolute;right:-5px;bottom:-5px;display:block;width:36px;height:36px;border:3px solid var(--edu-surface-card);border-radius:var(--radius-pill);background:currentColor;color:var(--edu-text-muted);box-shadow:0 2px 8px rgb(var(--edu-shadow-ink-rgb)/.16)}.profile-avatar-title{margin:20px 0 0;color:var(--edu-text-primary);font-size:15px;font-weight:800}.profile-avatar-hint,.profile-avatar-status{margin:5px 0 0;color:var(--edu-text-muted);font-size:12.5px;text-align:center}.profile-avatar-grid{display:grid;width:100%;max-width:430px;max-height:184px;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;overflow-y:auto;margin-top:16px;padding:4px}.profile-avatar-option{position:relative;aspect-ratio:1;overflow:hidden;border:2px solid transparent;border-radius:var(--radius-pill);background:var(--edu-surface-page);padding:0;transition:border-color .15s ease,box-shadow .15s ease,transform .15s ease}.profile-avatar-option:hover{border-color:var(--edu-resource-question-strong);transform:translateY(-1px)}.profile-avatar-option.is-selected{border-color:var(--edu-action-primary-background);box-shadow:0 0 0 3px var(--edu-surface-page)}.profile-avatar-option__check{position:absolute;right:4px;bottom:4px;display:flex;width:21px;height:21px;align-items:center;justify-content:center;border:2px solid var(--edu-surface-card);border-radius:var(--radius-pill);background:var(--edu-action-primary-background);color:var(--edu-text-inverse);font-size:12px;font-weight:900;line-height:1;box-shadow:0 2px 6px rgb(var(--edu-shadow-ink-rgb)/.18)}.profile-avatar-picker{max-height:min(620px,calc(100dvh - 24px));display:flex;flex-direction:column}.profile-avatar-picker__header,.profile-avatar-picker__footer{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px}.profile-avatar-picker__header{border-bottom:1px solid var(--edu-border-decorative)}.profile-avatar-picker__header h2{margin:0;color:var(--edu-text-primary);font-size:22px;font-weight:850;letter-spacing:-.03em}.profile-avatar-picker__header p{margin:4px 0 0;color:var(--edu-text-muted);font-size:13px}.profile-avatar-picker__body{min-height:0;overflow-y:auto;padding:20px 24px 24px}.profile-avatar-picker__body .profile-avatar-grid{max-height:min(360px,calc(100dvh - 250px));margin-top:0}.profile-avatar-pagination{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:18px auto 0;max-width:430px}.profile-avatar-page-button{min-width:82px;min-height:36px;border:1px solid var(--edu-border-decorative);border-radius:var(--radius-control);background:var(--edu-surface-card);color:var(--edu-text-muted);padding:0 12px;font-size:12px;font-weight:800;transition:border-color .15s ease,background .15s ease,color .15s ease}.profile-avatar-page-button:hover:not(:disabled){border-color:var(--edu-resource-question-strong);background:var(--edu-surface-page);color:var(--edu-resource-question-strong)}.profile-avatar-page-button:disabled{cursor:not-allowed;opacity:.45}.profile-avatar-page-label{color:var(--edu-text-muted);font-size:12px;font-weight:700;white-space:nowrap}.profile-avatar-picker__footer{justify-content:flex-end;border-top:1px solid var(--edu-border-decorative)}.profile-avatar-picker__footer .settings-primary-btn,.profile-avatar-picker__footer .settings-secondary-btn{min-width:88px}.profile-avatar-picker .edu-close-button{height:36px;width:36px;box-shadow:none}.profile-form-field{display:grid;gap:8px;margin-top:24px}.profile-form-field>span{color:var(--edu-text-primary);font-size:13px;font-weight:800}.profile-form-field input{width:100%;height:48px;border:1px solid var(--edu-border-decorative);border-radius:var(--radius-control);background:var(--edu-surface-card);padding:0 14px;color:var(--edu-text-primary);font-size:16px;outline:none;transition:border-color .15s ease,box-shadow .15s ease}.profile-form-field input:focus{border-color:var(--edu-resource-question-strong);box-shadow:0 0 0 3px rgb(var(--edu-resource-question-fill-rgb)/.22)}.profile-form-message{margin:10px 0 0;color:var(--edu-state-error-text);font-size:13px;font-weight:700}.profile-modal__footer{justify-content:flex-end;border-top:1px solid var(--edu-border-decorative)}.profile-modal__footer .settings-primary-btn,.profile-modal__footer .settings-secondary-btn{min-width:96px}.profile-modal .edu-close-button{height:36px;width:36px;box-shadow:none}@media (max-width: 640px){.profile-modal__header,.profile-modal__footer{padding:18px 20px}.profile-modal__body{padding:20px 20px 8px}.profile-avatar-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.profile-avatar-picker__header,.profile-avatar-picker__footer{padding:18px 20px}.profile-avatar-picker__body{padding:18px 20px 20px}}.settings-nav-item{display:flex;width:100%;align-items:center;gap:10px;border-radius:var(--radius-control-inner);padding:9px 10px;text-align:left;font-size:13.5px;font-weight:600;color:var(--edu-text-muted);transition:background .15s ease,color .15s ease}.settings-nav-item:hover{background:rgb(var(--edu-surface-card-rgb)/.72);color:var(--edu-text-primary);transform:none}.settings-nav-item.is-active{background:rgb(var(--edu-surface-card-rgb)/.92);color:var(--edu-text-primary);font-weight:800;box-shadow:inset 0 0 0 1px rgb(var(--edu-surface-subtle-rgb)/.9)}.settings-nav-icon,.settings-nav-icon-svg{width:16px;height:16px;flex-shrink:0;color:currentColor}.settings-nav-icon{display:inline-block;background:currentColor}.settings-row{display:grid;gap:12px;padding:18px 0;border-bottom:1px solid var(--edu-border-decorative)}.settings-row--split{grid-template-columns:minmax(0,1fr);align-items:start}@media (min-width: 640px){.settings-row--split{grid-template-columns:minmax(0,1.1fr) minmax(220px,.9fr);align-items:center;gap:20px}}.settings-row--stack{display:block}.settings-row--feature{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:16px}.settings-row--quota{grid-template-columns:minmax(0,1fr);align-items:center;gap:14px}@media (min-width: 640px){.settings-row--quota{grid-template-columns:minmax(0,1.1fr) minmax(220px,.9fr);gap:20px}}.settings-quota-card{display:flex;min-height:58px;align-items:center;gap:10px;border:1px solid var(--edu-border-decorative);border-radius:var(--radius-control);background:linear-gradient(135deg,var(--edu-surface-page) 0%,var(--edu-surface-card) 100%);padding:10px 14px}.settings-quota-icon{display:inline-flex;height:30px;width:30px;align-items:center;justify-content:center;border-radius:var(--radius-pill);background:var(--edu-surface-page);color:var(--edu-resource-question-strong);font-size:18px;font-weight:900}.settings-quota-value{color:var(--edu-text-primary);font-size:21px;font-weight:900;letter-spacing:-.02em}.settings-quota-value small{color:var(--edu-text-muted);font-size:12px;font-weight:700;letter-spacing:0}.settings-quota-locked{color:var(--edu-text-muted);font-size:13px;font-weight:800}.settings-label{font-size:14px;font-weight:800;letter-spacing:-.01em;color:var(--edu-text-primary)}.settings-hint{margin-top:2px;font-size:12.5px;line-height:1.45;color:var(--edu-text-muted)}.settings-field{width:100%;height:44px;border:1px solid var(--edu-border-decorative);border-radius:var(--radius-control);background:var(--edu-surface-card);padding:0 14px;font-size:14px;font-weight:600;color:var(--edu-text-primary);outline:none;transition:border-color .15s ease,box-shadow .15s ease,background .15s ease}.settings-field::-moz-placeholder{color:var(--edu-text-muted);font-weight:500}.settings-field::placeholder{color:var(--edu-text-muted);font-weight:500}.settings-field:focus{border-color:var(--edu-resource-question-strong);box-shadow:0 0 0 3px rgb(var(--edu-resource-question-fill-rgb)/.22)}.settings-field--readonly{display:flex;align-items:center;background:var(--edu-surface-page);color:var(--edu-text-body)}.settings-field--select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--edu-text-disabled) 50%),linear-gradient(135deg,var(--edu-text-disabled) 50%,transparent 50%);background-position:calc(100% - 18px) calc(50% - 2px),calc(100% - 12px) calc(50% - 2px);background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:34px}.settings-field--button{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--edu-surface-page);text-align:left;cursor:pointer}.settings-field--button:hover{background:var(--edu-surface-page);transform:none}.settings-ghost-btn{height:32px;border:1px solid var(--edu-border-decorative);border-radius:var(--radius-control-inner);background:var(--edu-surface-card);padding:0 12px;font-size:12px;font-weight:800;color:var(--edu-text-body);transition:background .15s ease,border-color .15s ease}.settings-ghost-btn:hover{background:var(--edu-surface-page);transform:none}.settings-check{display:inline-flex;height:22px;width:22px;align-items:center;justify-content:center;border-radius:var(--radius-pill);background:var(--edu-surface-page);color:var(--edu-resource-question-strong);font-size:12px;font-weight:900}.settings-secondary-btn,.settings-primary-btn{height:44px;border-radius:var(--radius-control);padding:0 18px;font-size:13.5px;font-weight:800;transition:background .15s ease,border-color .15s ease,opacity .15s ease}.settings-secondary-btn{border:1px solid var(--edu-border-decorative);background:var(--edu-surface-card);color:var(--edu-text-body)}.settings-secondary-btn:hover{background:var(--edu-surface-page);transform:none}.settings-primary-btn{border:1px solid transparent;background:var(--edu-surface-inverse);color:var(--edu-text-inverse)}.settings-primary-btn:hover{background:var(--edu-surface-inverse);transform:none}.settings-primary-btn:disabled{cursor:not-allowed;opacity:.6}.settings-shell .edu-close-button{height:36px;width:36px;box-shadow:none}.settings-shell .edu-close-button:hover{transform:none;box-shadow:none}.settings-shell button:hover,.settings-shell button:active{transform:none}.study-resource-tabs[data-v-b214702b]{min-height:44px;width:min(520px,38vw);min-width:0;gap:3px;border:1px solid var(--edu-border-decorative);background:var(--edu-surface-page);padding:4px;box-shadow:0 2px 5px rgb(var(--edu-text-primary-rgb)/.07) inset,0 1px rgb(var(--edu-surface-card-rgb)/.88)}.study-resource-tabs[data-v-b214702b] .edu-segmented__item{min-width:0;padding-inline:10px}@media (max-width: 640px){.study-resource-tabs[data-v-b214702b]{min-height:48px;width:100%;gap:3px;padding-inline:4px}.study-resource-tabs[data-v-b214702b] .edu-segmented__item{min-height:44px;min-width:0;padding-inline:8px}}.library-topbar[data-v-94d2ba52]{border-color:var(--edu-border-decorative);background-color:rgb(var(--edu-surface-card-rgb)/.96);box-shadow:0 1px rgb(var(--edu-surface-card-rgb)/.94) inset,0 6px 20px rgb(var(--edu-text-primary-rgb)/.04)}.subject-course-picker[data-v-94d2ba52]{width:clamp(180px,21vw,280px)}.subject-course-picker button[data-v-94d2ba52]{max-width:100%;overflow:hidden;justify-content:flex-start;text-align:left;white-space:nowrap}.subject-course-picker button>span[data-v-94d2ba52]{flex:0 1 auto;display:block;max-width:100%;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.subject-course-picker__chevron[data-v-94d2ba52]{width:15px;height:15px;flex:0 0 auto;color:var(--edu-text-muted)}.course-dialog__selector[data-v-94d2ba52]{padding:0 20px 18px}.course-dialog__selector[data-v-94d2ba52] .course-selector__spaces,.course-dialog__selector[data-v-94d2ba52] .course-selector__options{overflow:visible;overscroll-behavior:auto}@media (max-width: 640px){.library-topbar[data-v-94d2ba52]{border-top:0;border-right:0;border-left:0;border-radius:0 0 var(--radius-card) var(--radius-card);background-color:rgb(var(--edu-surface-card-rgb)/.94)}.library-topbar__primary[data-v-94d2ba52]{min-height:calc(54px + env(safe-area-inset-top));padding-top:env(safe-area-inset-top)}.subject-course-picker button[data-v-94d2ba52]{min-height:44px}.topbar-action-chip[data-v-94d2ba52]{min-width:44px;padding:0 7px}.premium-chip__label[data-v-94d2ba52]{display:none}.course-dialog__selector[data-v-94d2ba52]{padding:0 14px 14px}}.premium-chip[data-v-94d2ba52]{padding:0 16px 0 10px;border-color:rgb(var(--edu-text-primary-rgb)/.92);background:linear-gradient(180deg,rgb(var(--edu-surface-card-rgb)/.08) 0%,transparent 42%),var(--edu-text-primary);color:var(--edu-text-inverse);box-shadow:0 1px 2px rgb(var(--edu-text-primary-rgb)/.12),0 1px rgb(var(--edu-surface-card-rgb)/.12) inset}.topbar-action-chip[data-v-94d2ba52]{min-height:44px;min-width:112px}.premium-chip[data-v-94d2ba52]:hover:not(:disabled){border-color:var(--edu-text-primary);background:linear-gradient(180deg,rgb(var(--edu-surface-card-rgb)/.1) 0%,transparent 42%),var(--edu-text-primary)}.premium-chip[data-v-94d2ba52] .edu-button__icon{width:28px;height:28px;align-items:center;justify-content:center}.premium-chip__badge-frame[data-v-94d2ba52]{display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center}.premium-chip__badge[data-v-94d2ba52]{display:block;width:28px;height:28px;-o-object-fit:contain;object-fit:contain}