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::-webkit-scrollbar{width:10px;height:10px}.light ::-webkit-scrollbar-track{background:var(--portal-theme-light);border-radius:10px}.light ::-webkit-scrollbar-thumb{background:linear-gradient(180deg,color-mix(in srgb,var(--portal-theme-color) 30%,transparent),color-mix(in srgb,var(--portal-theme-color) 50%,transparent));border-radius:10px;border:2px solid var(--portal-theme-light)}.light ::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,color-mix(in srgb,var(--portal-theme-color) 50%,transparent),color-mix(in srgb,var(--portal-theme-color) 70%,transparent))}.light .MuiAvatar-root{border:2px solid color-mix(in srgb,var(--portal-theme-color) 10%,transparent);box-shadow:0 2px 8px #00000014}.light img{border-radius:8px;transition:all .3s ease}.light img:not(.lesson-reader-page-img):hover{box-shadow:0 8px 24px #0000001f;transform:scale(1.02)}.light .MuiChip-root{background:linear-gradient(135deg,var(--portal-theme-primary) 0%,var(--portal-theme-light) 100%);border:1px solid 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.MuiAccordionSummary-root{background:linear-gradient(135deg,#fafbfc,#fff);border-radius:12px 12px 0 0!important}.light .MuiStepIcon-root.MuiStepIcon-active{color:var(--portal-theme-color);filter:drop-shadow(0 2px 4px color-mix(in srgb,var(--portal-theme-color) 30%,transparent))}.light .MuiStepIcon-root.MuiStepIcon-completed{color:#4caf50;filter:drop-shadow(0 2px 4px rgba(76,175,80,.3))}.light .MuiSnackbar-root .MuiPaper-root{border-radius:12px;box-shadow:0 8px 24px #00000026;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.light .MuiDivider-root,.light .sidebar-divider.MuiDivider-root{background:#00000029!important;border:none!important;height:1px}.light .MuiBreadcrumbs-li a{transition:all .2s ease}.light .MuiBreadcrumbs-li a:hover{transform:translate(2px);color:var(--portal-theme-color)}.light a:not(.MuiButton-root):not(.portal-btn){color:var(--portal-theme-color);text-decoration:none;position:relative;transition:color .3s ease}.light 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.portal-theme-gradient{background:linear-gradient(135deg,var(--portal-theme-color) 0%,color-mix(in srgb,var(--portal-theme-color) 85%,black) 50%,color-mix(in srgb,var(--portal-theme-color) 70%,black) 100%)}.light .success-animation{animation:success-scale-light .5s ease}@keyframes success-scale-light{0%{transform:scale(0);opacity:0}50%{transform:scale(1.2)}to{transform:scale(1);opacity:1}}.light .error-shake{animation:error-shake-light .5s ease}@keyframes error-shake-light{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}.light .page-enter{opacity:0;transform:translateY(20px)}.light .page-enter-active{opacity:1;transform:translateY(0);transition:opacity .3s,transform 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.dashboard-page-header__title{font-size:1.5rem}.dashboard-page-header__subtitle{margin:0;font-size:.875rem;color:var(--text-primary-color);opacity:.88;line-height:1.45}.dashboard-page-header__aside{display:flex;flex-wrap:wrap;align-items:center;gap:.65rem}.dashboard-page-header__actions{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem}.dashboard-page-header__badge{display:inline-flex;align-items:center;gap:.45rem;padding:.45rem .85rem;border-radius:999px;font-size:.78rem;font-weight:600;letter-spacing:.02em;color:var(--portal-theme-color);background:color-mix(in srgb,var(--portal-theme-color) 14%,transparent);border:1px solid color-mix(in srgb,var(--portal-theme-color) 28%,transparent)}.dashboard-overview-stats{margin-bottom:.25rem}.dashboard-stat-card{position:relative;overflow:hidden;border:1px solid var(--input-border-color);transition:transform .25s ease,box-shadow .25s ease,border-color .25s 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h5{margin:0;font-size:1.05rem;font-weight:600;color:var(--text-white-color)}.dashboard-panel-heading__icon{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;color:var(--portal-theme-color);background:color-mix(in srgb,var(--portal-theme-color) 14%,transparent)}.dashboard-panel-card .dashboard-panel-body{padding:1rem 1.25rem}.dashboard-status-panel .dashboard-panel-heading{background:linear-gradient(90deg,color-mix(in srgb,var(--portal-theme-color) 8%,transparent) 0%,transparent 100%)!important}.dashboard-status-table-wrap{overflow-x:auto}.dashboard-status-table{width:100%;border-collapse:collapse}.dashboard-status-table th,.dashboard-status-table td{padding:.85rem .5rem;text-align:left;border-bottom:1px solid var(--input-border-color);color:var(--text-primary-color);font-size:.9rem}.dashboard-status-table th{font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--portal-theme-color);opacity:.9}.dashboard-status-table tbody tr:last-child td{border-bottom:none}.dashboard-status-table__label{display:inline-flex;align-items:center;gap:.55rem;font-weight:500;color:var(--text-white-color)}.dashboard-status-badge{display:inline-flex;align-items:center;padding:.25rem .65rem;border-radius:999px;font-size:.78rem;font-weight:600;background:color-mix(in srgb,var(--stat-accent, var(--portal-theme-color)) 14%,transparent);color:var(--stat-accent, var(--portal-theme-color));border:1px solid color-mix(in srgb,var(--stat-accent, var(--portal-theme-color)) 28%,transparent)}.dashboard-status-badge--teal{--stat-accent: #2a9988}.dashboard-status-badge--green{--stat-accent: #22c55e}.dashboard-status-badge--amber{--stat-accent: #f59e0b}.dashboard-status-badge--blue{--stat-accent: #3b82f6}.dashboard-status-badge--violet{--stat-accent: #8b5cf6}.sidebar-permanent-drawer 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.35rem}.sidebar-nav__search-icon{position:absolute;left:.6rem;top:50%;transform:translateY(-50%);color:var(--portal-theme-color)!important;opacity:.75;pointer-events:none;font-size:1rem!important}.sidebar-nav__search input{width:100%;border:1px solid rgba(15,23,42,.1);background:#fff;color:#334155;border-radius:8px;padding:.4rem .65rem .4rem 2rem;font-size:.75rem;outline:none;transition:border-color .2s ease,box-shadow .2s ease}.dark .sidebar-nav__search input{background:#ffffff0a;border-color:#ffffff1f;color:#cbd5e1}.sidebar-nav__search input::placeholder{color:#94a3b8}.sidebar-nav__search input:focus{border-color:var(--portal-theme-color);box-shadow:0 0 0 3px color-mix(in srgb,var(--portal-theme-color) 18%,transparent)}.sidebar-nav__menu{flex:1;overflow-y:auto;overflow-x:hidden;padding:.25rem 0 .5rem}.sidebar-nav__group+.sidebar-nav__group{margin-top:.2rem;padding-top:.25rem;border-top:1px solid rgba(15,23,42,.06)}.dark .sidebar-nav__group+.sidebar-nav__group{border-top-color:#ffffff0f}.sidebar-nav__group-label{margin:0 0 .2rem;padding:0 .9rem;font-size:.58rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#94a3b8}.dark .sidebar-nav__group-label{color:#64748b}.sidebar-nav-item{border-radius:8px;align-items:center;gap:.5rem;margin:.1rem .55rem;padding:.58rem .55rem;font-size:.8125rem;font-weight:500;line-height:1.2;transition:background-color .2s,color .2s,box-shadow .2s,transform .15s;display:flex;position:relative;color:#475569!important;text-decoration:none!important}.dark .sidebar-nav-item{color:#94a3b8!important}.sidebar-nav-item:hover{background:color-mix(in srgb,var(--portal-theme-color) 10%,transparent);color:var(--portal-theme-color)!important;transform:translate(2px)}.sidebar-nav-item__icon{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;flex-shrink:0;border-radius:7px;background:color-mix(in srgb,var(--portal-theme-color) 12%,#ffffff);color:var(--portal-theme-color);transition:background-color .2s ease,color .2s ease,transform .2s ease}.sidebar-nav-item__icon svg{width:20px;height:20px}.dark .sidebar-nav-item__icon{background:color-mix(in srgb,var(--portal-theme-color) 16%,transparent)}.sidebar-nav-item__label{flex:1;min-width:0}.sidebar-nav-item__indicator{width:5px;height:5px;border-radius:50%;background:#fff;box-shadow:0 0 0 2px #ffffff59;flex-shrink:0}.sidebar-nav-item.is-active{background:linear-gradient(135deg,#2a9988,#238b7b)!important;color:#fff!important;font-weight:600;box-shadow:0 2px 10px color-mix(in srgb,var(--portal-theme-color) 40%,transparent)}.sidebar-nav-item.is-active .sidebar-nav-item__icon{background:#fff3;color:#fff}.sidebar-nav-item.is-active:hover{transform:none;color:#fff!important}.sidebar-nav__menu::-webkit-scrollbar{width:4px}.sidebar-nav__menu::-webkit-scrollbar-thumb{background:color-mix(in srgb,var(--portal-theme-color) 30%,transparent);border-radius:4px}.app-sidebar-box .menus-list,.app-sidebar-box .menuActive{all:unset}:root{--portal-theme-primary: rgba(9, 35, 41, 1);--portal-theme-secondary: #0f2e36;--portal-theme-color: #2a9988;--text-primary-color: #90a7ad;--text-white-color: #fff;--text-contrast-color: #fff;--input-border-color: rgb(255 255 255 / 36%);--portal-theme-light: #11353e;--shadow-color: rgba(0, 0, 0, .35);--error-color: #f87171;--success-color: #4ade80;--font-sans: "Parkinsans", "Rubik", system-ui, -apple-system, sans-serif}html.light{--portal-theme-primary: #f0f4f6;--portal-theme-secondary: #ffffff;--portal-theme-color: #2a9988;--text-primary-color: #2c3e50;--text-white-color: #1a252f;--text-contrast-color: #fff;--input-border-color: rgba(0, 0, 0, .12);--portal-theme-light: #e8eaed;--shadow-color: rgba(0, 0, 0, .08);--error-color: #dc2626;--success-color: #15803d}html.dark{--portal-theme-primary: rgba(9, 35, 41, 1);--portal-theme-secondary: #0f2e36;--portal-theme-color: #2a9988;--text-primary-color: #90a7ad;--text-white-color: #fff;--text-contrast-color: #fff;--input-border-color: rgb(255 255 255 / 36%);--portal-theme-light: #11353e;--shadow-color: rgba(0, 0, 0, .45);--error-color: #f87171;--success-color: #4ade80}.portal-shell{min-height:100vh;display:flex;flex-direction:column;background:var(--portal-theme-primary);color:var(--text-primary-color);font-family:var(--font-sans)}.portal-main{flex:1}.portal-header{position:sticky;top:0;z-index:50;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.65rem 1rem;padding:.75rem 1.5rem;border-bottom:1px solid var(--input-border-color);background:color-mix(in srgb,var(--portal-theme-secondary) 92%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}html.light .portal-header{background:#ffffffeb}.portal-logo{display:flex;flex-shrink:0;align-items:center;gap:.65rem;font-weight:700;font-size:1.05rem;letter-spacing:-.02em;color:var(--text-white-color);text-decoration:none}.portal-logo-image{width:auto;height:40px}.portal-nav{display:flex;align-items:center;gap:.35rem}.portal-nav a:not(.portal-btn){padding:.5rem .85rem;border-radius:8px;font-size:.9rem;color:var(--text-primary-color);text-decoration:none;transition:background .15s ease}.portal-nav a:not(.portal-btn):hover,.portal-nav a.portal-link{color:var(--portal-theme-color)}.portal-nav a:not(.portal-btn):hover{background:color-mix(in srgb,var(--portal-theme-color) 12%,transparent)}.portal-header-actions{display:flex;align-items:center;gap:.5rem}.portal-btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.55rem 1.1rem;border-radius:9px;font-size:.9rem;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .15s ease,border-color .15s ease,transform .1s ease;font-family:inherit;text-decoration:none;color:inherit}.portal-btn:disabled{opacity:.55;cursor:not-allowed}.portal-sign-in{display:inline-flex;flex-direction:column;align-items:center}.portal-sign-in-error{display:block;margin-top:.35rem;max-width:18rem;font-size:.8125rem;line-height:1.4;text-align:center;color:var(--error-color)}.portal-btn--ghost{background:transparent;color:var(--text-primary-color);border-color:var(--input-border-color)}.portal-btn--ghost:hover:not(:disabled){background:color-mix(in srgb,var(--portal-theme-color) 10%,transparent)}.portal-btn--primary,a.portal-btn--primary{background:var(--portal-theme-color);color:var(--text-contrast-color);box-shadow:0 2px 12px color-mix(in srgb,var(--portal-theme-color) 35%,transparent)}.portal-btn--primary:hover:not(:disabled){filter:brightness(1.06);transform:translateY(-1px)}.portal-hero{padding:4rem 1.5rem 3rem;max-width:1100px;margin:0 auto;text-align:center}.portal-hero-badge{display:inline-flex;align-items:center;gap:.35rem;padding:.35rem .85rem;border-radius:999px;font-size:.8rem;font-weight:600;background:color-mix(in srgb,var(--portal-theme-color) 18%,transparent);color:var(--portal-theme-color);margin-bottom:1.25rem}.portal-hero h1{margin:0 0 1rem;font-size:clamp(2rem,5vw,2.85rem);font-weight:800;letter-spacing:-.04em;line-height:1.1;color:var(--text-white-color)}.portal-hero-gradient{background:linear-gradient(135deg,var(--portal-theme-color) 0%,color-mix(in srgb,var(--portal-theme-color) 55%,#60a5fa) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.portal-hero p{max-width:560px;margin:0 auto 1.75rem;font-size:1.1rem;opacity:.92}.portal-hero-cta{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center;align-items:flex-start}.portal-cta-strip{margin:2rem auto 3rem;max-width:900px;padding:2rem 1.5rem;border-radius:16px;text-align:center;background:linear-gradient(135deg,color-mix(in srgb,var(--portal-theme-color) 22%,var(--portal-theme-secondary)),color-mix(in srgb,var(--portal-theme-color) 8%,var(--portal-theme-primary)));border:1px solid color-mix(in srgb,var(--portal-theme-color) 35%,transparent)}.portal-cta-strip h2{margin:0 0 .5rem;font-size:1.35rem;color:var(--text-white-color)}.portal-cta-strip p{margin:0 0 1.25rem;opacity:.9}.portal-footer{padding:2rem 1.5rem;border-top:1px solid var(--input-border-color);text-align:center;font-size:.85rem;opacity:.75}.portal-auth-page{width:100%;padding:2rem 1rem 3rem;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:calc(100vh - 64px)}.portal-spinner{width:2rem;height:2rem;border-radius:50%;border:2px solid color-mix(in srgb,var(--portal-theme-color) 25%,transparent);border-top-color:var(--portal-theme-color);animation:portal-spin .7s linear infinite}@keyframes portal-spin{to{transform:rotate(360deg)}}.portal-alert{padding:.65rem .85rem;border-radius:10px;font-size:.88rem;margin:0 auto 1rem;max-width:28rem}.portal-alert--error{background:color-mix(in srgb,var(--error-color) 15%,transparent);color:var(--error-color);border:1px solid color-mix(in srgb,var(--error-color) 35%,transparent)}