.portal{--portal-bg:#f3f6fa;--portal-surface:#fff;--portal-ink:rgb(var(--tone-800));--portal-muted:rgb(var(--tone-500));--portal-line:rgb(var(--tone-200));--portal-soft:#f5f8fc;--portal-blue:rgb(var(--brand-text));--portal-shadow:0 3px 18px rgb(var(--tone-800)/0.035);min-height:100dvh;background:var(--portal-bg);color:var(--portal-ink);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;-webkit-font-smoothing:antialiased;color-scheme:light}html[data-theme=dark] .portal{--portal-bg:rgb(var(--tone-900));--portal-surface:rgb(var(--tone-900));--portal-ink:rgb(var(--tone-100));--portal-muted:rgb(var(--tone-400));--portal-line:rgb(var(--tone-800));--portal-soft:rgb(var(--tone-800));--portal-blue:rgb(var(--brand-text));--portal-shadow:0 3px 18px rgba(0,0,0,.06);color-scheme:dark}.portal a{color:inherit;text-decoration:none}.portal a,.portal button,.portal input,.portal select,.portal textarea{-webkit-tap-highlight-color:transparent}.portal a,.portal button{touch-action:manipulation}.portal button{transition:background-color .18s,color .18s,box-shadow .18s,transform .16s cubic-bezier(.2,.8,.2,1)}.portal button:active:not(:disabled),.portal-button:active{transform:scale(.97)}.portal :focus-visible{outline:3px solid rgb(var(--brand-300));outline-offset:3px}.portal button:disabled{cursor:not-allowed;opacity:.5}.portal-skip{position:fixed;top:-60px;left:280px;z-index:100;background:white;padding:12px 20px;border-radius:12px}.portal-skip:focus{top:8px}.portal-sidebar{position:fixed;inset:0 auto 0 0;width:246px;z-index:50;display:flex;flex-direction:column;background:rgb(var(--brand-950))!important;color:rgb(var(--tone-300));padding:0 16px 16px}.portal-brand{display:flex;align-items:center;gap:11px;min-height:90px;padding:15px 10px;color:white!important}.portal-brand img{width:42px;height:42px;-o-object-fit:contain;object-fit:contain}.portal-brand strong{display:block;font-size:16px;letter-spacing:-.3px}.portal-brand small{display:block;margin-top:3px;color:rgb(var(--tone-400));font-size:10px;letter-spacing:1.7px;text-transform:uppercase}.portal-nav{flex:1;overflow-y:auto;padding:8px 0 20px}.portal-nav-label{margin:16px 14px 9px;color:rgb(var(--tone-400));font-size:10px;font-weight:700;letter-spacing:1.8px;text-transform:uppercase}.portal-nav a{position:relative;display:flex;align-items:center;gap:12px;min-height:43px;padding:10px 14px;margin:3px 0;border-radius:10px;color:rgb(var(--tone-300))!important;font-size:12px;font-weight:500;transition:color .18s,background .18s}.portal-nav a:hover{background:rgba(255,255,255,.06);color:white!important}.portal-nav a[aria-current=page]{color:var(--on-brand)!important;background:var(--brand);box-shadow:0 4px 14px #0002}.portal-nav a svg{flex:0 0 auto;opacity:.85}.portal-sidebar-footer{border-top:1px solid #ffffff16;padding:16px 10px 2px}.portal-sidebar-footer a{display:flex;align-items:center;gap:10px;font-size:12px;color:rgb(var(--tone-300))!important}.portal-workspace{margin-left:246px;min-width:0}.portal-topbar{position:sticky;top:0;z-index:35;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:76px;padding:14px 34px;border-bottom:1px solid var(--portal-line);background:color-mix(in srgb,var(--portal-surface) 90%,transparent);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}.portal-breadcrumb{display:flex;align-items:center;gap:9px;color:var(--portal-muted);font-size:12px}.portal-breadcrumb strong{color:var(--portal-ink);font-weight:600}.portal-topbar-actions{display:flex;align-items:center;gap:10px}.portal-topbar select{max-width:135px;font-size:12px;min-height:36px}.portal-icon-button{display:inline-flex;align-items:center;justify-content:center;width:39px;height:39px;flex-shrink:0;border-radius:11px;border:1px solid var(--portal-line);color:var(--portal-muted);background:var(--portal-surface)}.portal-icon-button:hover{background:var(--portal-soft);color:var(--portal-ink)}.portal-account{display:flex;align-items:center;gap:10px;border-left:1px solid var(--portal-line);padding-left:14px}.portal-account strong{display:block;font-size:12px;font-weight:700}.portal-account small{display:block;color:var(--portal-muted);font-size:10px;margin-top:2px}.portal-avatar{position:relative;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;background:rgb(var(--brand-500)/.14);color:rgb(var(--brand-text));border-radius:13px;font-weight:750;overflow:hidden}.portal-avatar img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.avatar-sm{width:32px;height:32px;border-radius:10px;font-size:11px}.avatar-md{width:41px;height:41px;font-size:13px}.avatar-lg{width:82px;height:82px;border-radius:24px;font-size:26px;border:4px solid var(--portal-surface)}.portal-main{min-width:0;padding:32px 34px 40px}.portal-page{max-width:1380px;margin:0 auto;display:flex;flex-direction:column;gap:25px}.portal-page.is-narrow{max-width:900px}.portal-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px}.portal-eyebrow{font-size:10px;text-transform:uppercase;letter-spacing:2.3px;font-weight:750;color:var(--portal-blue);margin-bottom:9px}.portal-heading h1{font-size:clamp(25px,2.3vw,34px);line-height:1.22;font-weight:800;letter-spacing:-1.1px}.portal-description{color:var(--portal-muted);font-size:13px;line-height:1.8;margin-top:8px;max-width:680px}.portal-heading-actions{display:flex;flex-wrap:wrap;gap:9px;flex-shrink:0}.portal-welcome{position:relative;isolation:isolate;overflow:hidden;border-radius:22px;background:rgb(var(--brand-950));color:#fff;min-height:228px}.portal-welcome-art{position:absolute;inset:0 0 0 42%;z-index:-1}.portal-welcome-art img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover;opacity:.56}.portal-welcome-art:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgb(var(--brand-950)) 0,rgb(var(--brand-950)/.6) 35%,rgb(var(--brand-950)/.031) 100%)}.portal-welcome-content{padding:32px 36px;max-width:680px}.portal-welcome .portal-eyebrow{color:rgb(var(--brand-300))}.portal-welcome h1{font-size:clamp(26px,2.4vw,35px);font-weight:800;letter-spacing:-1px;line-height:1.25}.portal-welcome-content>p:not(.portal-eyebrow){margin-top:12px;max-width:440px;color:rgb(var(--tone-300));font-size:13px;line-height:1.8}.portal-welcome .portal-button{background:#fff;color:rgb(var(--tone-800))!important;border-color:#fff;min-height:38px;font-size:12px}.portal-welcome .portal-button.is-secondary{background:#ffffff0b;color:white!important;border-color:#ffffff35}.portal-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.portal-stat{position:relative;background:var(--portal-surface);border:1px solid var(--portal-line);border-radius:16px;padding:22px;box-shadow:var(--portal-shadow)}.portal-stat-icon{display:flex;align-items:center;justify-content:center;width:41px;height:41px;border-radius:12px;margin-bottom:18px}.portal-stat-label{font-size:11px;color:var(--portal-muted);font-weight:600}.portal-stat-value{font-size:29px;font-weight:750;line-height:1.3;margin-top:5px;letter-spacing:-.8px;font-variant-numeric:tabular-nums}.portal-stat-hint{font-size:10px;color:var(--portal-muted);margin-top:7px}.portal-stat-arrow{position:absolute;right:20px;top:24px;color:rgb(var(--tone-400))}.portal-lift{transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s}@media (hover:hover){.portal-lift:hover{transform:translateY(-3px);box-shadow:0 9px 28px rgb(var(--tone-800)/.043)}}.portal-columns{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(270px,1fr);gap:24px;align-items:start}.portal-stack{display:flex;flex-direction:column;gap:24px;min-width:0}.portal-panel{background:var(--portal-surface);border:1px solid var(--portal-line);border-radius:17px;box-shadow:var(--portal-shadow);min-width:0}.portal-panel-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:21px 23px;border-bottom:1px solid var(--portal-line)}.portal-panel-heading h2{font-size:15px;font-weight:750;letter-spacing:-.25px}.portal-panel-heading p{font-size:11px;color:var(--portal-muted);margin-top:5px;line-height:1.6}.portal-panel-heading>a{color:var(--portal-blue);font-size:11px;font-weight:650;white-space:nowrap}.portal-panel-body{padding:23px}.portal-panel-body.p-0{padding:0}.portal-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;border-radius:10px;border:1px solid rgb(var(--brand-950));padding:10px 16px;font-size:12px;font-weight:650;line-height:1.4;background:rgb(var(--brand-950));color:#fff!important;transition:background .18s,box-shadow .18s,transform .18s}.portal-button:hover{background:rgb(var(--brand-800));box-shadow:0 3px 10px rgb(var(--tone-800)/.082)}.portal-button.is-secondary{background:var(--portal-surface);color:var(--portal-ink)!important;border-color:var(--portal-line)}.portal-button.is-secondary:hover{background:var(--portal-soft)}.portal-button.is-danger{background:#b4233a;border-color:#b4233a;color:white!important}.portal-field{display:flex;flex-direction:column;gap:8px;color:var(--portal-ink);font-size:12px;font-weight:600}.portal-field small{color:var(--portal-muted);font-size:11px;line-height:1.7;font-weight:400}.portal input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=file]),.portal select,.portal textarea{border:1px solid var(--portal-line);border-radius:10px;background:var(--portal-surface);color:var(--portal-ink);min-height:42px;padding:10px 12px;font-size:13px;transition:border-color .18s,box-shadow .18s;max-width:100%}.portal input:focus,.portal select:focus,.portal textarea:focus{border-color:rgb(var(--brand-400));box-shadow:0 0 0 3px rgb(var(--tone-400)/.086)}.portal input[type=checkbox],.portal input[type=radio]{width:17px;height:17px;accent-color:var(--brand);flex-shrink:0}.portal input::-moz-placeholder,.portal textarea::-moz-placeholder{color:rgb(var(--tone-400))}.portal input::placeholder,.portal textarea::placeholder{color:rgb(var(--tone-400))}.portal-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.portal-toolbar{display:flex;align-items:flex-end;flex-wrap:wrap;gap:14px;padding:20px 23px;background:var(--portal-surface);border:1px solid var(--portal-line);border-radius:16px}.portal-toolbar .portal-field{flex:1;min-width:140px}.portal-segments{display:inline-flex;gap:3px;padding:4px;background:var(--portal-soft);border:1px solid var(--portal-line);border-radius:12px;max-width:100%;overflow-x:auto}.portal-segments button{position:relative;padding:9px 16px;border-radius:9px;font-size:12px;font-weight:600;white-space:nowrap;color:var(--portal-muted)}.portal-segments button[aria-pressed=true]{color:var(--portal-ink)}.portal-segments button>span:not(.portal-segment-active){position:relative;display:flex;gap:7px;align-items:center}.portal-segments small{font-size:10px;opacity:.7}.portal-segment-active{position:absolute;inset:0;border-radius:8px;background:var(--portal-surface);box-shadow:0 2px 5px rgb(var(--tone-800)/.047)}.portal-badge{display:inline-flex;align-items:center;gap:5px;padding:5px 9px;border-radius:7px;font-size:10px;font-weight:650;line-height:1.3}.tone-blue{background:rgb(var(--brand-500)/.12);color:rgb(var(--brand-text))}.tone-green{background:rgb(22 163 74/.12);color:#1c7a55}.tone-amber{background:rgb(217 119 6/.13);color:#92600f}.tone-violet{background:rgb(124 58 237/.12);color:#6a3dbd}.tone-red{background:rgb(220 38 38/.1);color:#b4233a}.tone-neutral{background:var(--portal-soft);color:var(--portal-muted)}html[data-theme=dark] .tone-green{color:#6ee7b7}html[data-theme=dark] .tone-amber{color:#fcd34d}html[data-theme=dark] .tone-violet{color:#c4b5fd}html[data-theme=dark] .tone-red{color:#fda4af}.portal-empty{flex-direction:column;text-align:center;padding:36px 20px;gap:10px}.portal-empty,.portal-empty>span{display:flex;align-items:center;justify-content:center}.portal-empty>span{width:56px;height:56px;background:var(--portal-soft);color:rgb(var(--tone-400));border-radius:18px;margin-bottom:4px}.portal-empty h3{font-size:13px;font-weight:650}.portal-empty p{font-size:12px;color:var(--portal-muted);max-width:330px;line-height:1.7}.portal-empty .portal-button{margin-top:8px}.portal-error{display:flex;align-items:center;gap:14px;border:1px solid #efcbd1;border-radius:14px;padding:18px 20px;background:#fff5f6;color:#9d2940}.portal-error>svg{flex-shrink:0}.portal-error>div{flex:1}.portal-error strong{font-size:13px}.portal-error p{font-size:12px;margin-top:4px}.portal-loading{display:flex;flex-direction:column;gap:14px;padding:22px 0}.portal-skeleton{height:58px;border-radius:12px;background:linear-gradient(100deg,var(--portal-line) 30%,var(--portal-soft) 50%,var(--portal-line) 70%);background-size:250% 100%;animation:portal-shimmer 1.5s ease-in-out infinite}@keyframes portal-shimmer{0%{background-position:100% 0}to{background-position:-100% 0}}.portal-list{display:flex;flex-direction:column}.portal-list-row{display:flex;align-items:center;gap:14px;padding:17px 23px;border-bottom:1px solid var(--portal-line)}.portal-list-row:last-child{border-bottom:0}.portal-list-row strong{font-size:12px;font-weight:650}.portal-list-row p{font-size:11px;color:var(--portal-muted);margin-top:4px;line-height:1.6}.portal-list-row .grow{flex:1;min-width:0}.portal-period{display:flex;align-items:center;justify-content:center;width:40px;height:43px;flex-shrink:0;border-radius:10px;background:var(--portal-soft);color:var(--portal-blue);font-size:12px;font-weight:750}.portal-table-scroll{overflow-x:auto;max-width:100%;border-radius:12px}.portal table{width:100%;font-size:12px;border-spacing:0}.portal th{background:var(--portal-soft);color:var(--portal-muted);font-size:10px;text-transform:uppercase;letter-spacing:.65px;font-weight:650;padding:13px 16px;text-align:left;white-space:nowrap}.portal td{padding:14px 16px;border-bottom:1px solid var(--portal-line)}.portal tr:last-child td{border-bottom:0}.portal-modal-backdrop{position:fixed;z-index:100;inset:0;display:flex;align-items:center;justify-content:center;padding:24px;background:rgb(var(--tone-900)/.439);backdrop-filter:blur(6px)}.portal-modal{width:100%;max-width:560px;max-height:90dvh;overflow-y:auto;border:1px solid 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cubic-bezier(.22,1,.36,1)}.portal-sidebar.is-open{transform:translateX(0)}.portal-workspace{margin-left:0}.portal-menu-toggle,.portal-mobile-close{display:inline-flex}.portal-mobile-close{position:absolute;right:12px;top:25px;background:#ffffff0a;color:white;border-color:#ffffff20;width:32px;height:32px}.portal-brand{padding-left:6px}.portal-mobile-backdrop{position:fixed;inset:0;background:rgb(var(--tone-900)/.439);backdrop-filter:blur(4px);z-index:45}.portal-main{padding-bottom:98px}.portal-mobile-nav{position:fixed;display:flex;inset:auto 0 0;z-index:35;justify-content:space-around;background:color-mix(in srgb,var(--portal-surface) 94%,transparent);backdrop-filter:blur(22px);border-top:1px solid var(--portal-line);padding:8px 10px calc(8px + env(safe-area-inset-bottom))}.portal-mobile-nav a{display:flex;flex-direction:column;align-items:center;gap:5px;padding:6px 15px;font-size:9px;color:var(--portal-muted)}.portal-mobile-nav a[aria-current=page]{color:var(--portal-blue)}.portal-messenger .portal-main{height:calc(100dvh - 76px - 70px - env(safe-area-inset-bottom))}}@media (max-width:700px){.portal-topbar{min-height:64px;padding:10px 16px;gap:8px}.portal-topbar-actions{gap:7px}.portal-breadcrumb{display:none}.portal-account{padding-left:0;border:0}.portal-topbar select{max-width:105px;font-size:11px}.portal-topbar .portal-theme-toggle{display:none}.portal-main{padding:22px 16px 94px}.portal-page{gap:20px}.portal-heading{align-items:flex-start;flex-direction:column;gap:15px}.portal-heading h1{font-size:28px}.portal-heading-actions{width:100%}.portal-description{font-size:12px}.portal-welcome{min-height:235px;border-radius:18px}.portal-welcome-content{padding:28px 24px}.portal-welcome-art{left:20%;opacity:.5}.portal-welcome h1{font-size:28px}.portal-welcome-content>p:not(.portal-eyebrow){font-size:12px}.portal-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.portal-stat{padding:17px}.portal-stat-icon{margin-bottom:14px;width:35px;height:35px;border-radius:10px}.portal-stat-value{font-size:26px}.portal-stat-label{font-size:10px}.portal-columns{grid-template-columns:1fr;gap:20px}.portal-panel-body,.portal-panel-heading{padding:18px}.portal-list-row{padding:16px 18px}.portal-form-grid{grid-template-columns:1fr;gap:18px}.portal-toolbar{padding:16px}.portal-modal-backdrop{align-items:flex-end;padding:12px}.portal-modal{max-height:88dvh;border-radius:24px}.portal-error{flex-wrap:wrap}.portal-error .portal-button{margin-left:34px}.portal-messenger .portal-main{height:calc(100dvh - 64px - 70px - env(safe-area-inset-bottom));padding:0}}@media (prefers-reduced-motion:reduce){.portal *,.portal :after,.portal :before{animation:none!important;transition:none!important;scroll-behavior:auto!important}.portal button:active,.portal-lift:hover{transform:none}}.portal-class-card{display:flex;align-items:center;gap:13px;padding:17px;border:1px solid var(--portal-line);border-radius:12px}.portal-class-card strong{font-size:13px}.portal-class-card p{margin-top:5px;font-size:11px;line-height:1.6;color:var(--portal-muted)}.portal-class-card>svg{color:rgb(var(--tone-400));flex-shrink:0}.portal-option-card{padding:18px;border:1px solid var(--portal-line);border-radius:12px}.portal-option-card h3{font-size:12px;font-weight:650;margin-top:13px;line-height:1.7}.portal-option-card p{font-size:11px;color:var(--portal-muted);margin-top:6px}.portal-child-card{padding:23px;border:1px solid var(--portal-line);border-radius:15px}.portal-child-card h3{font-size:14px;font-weight:700}.portal-child-card p{font-size:11px;color:var(--portal-muted);margin-top:5px}.portal-child-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:24px 0;margin-bottom:20px;border-bottom:1px solid var(--portal-line)}.portal-child-stats span{display:block;font-size:10px;color:var(--portal-muted)}.portal-child-stats strong{display:block;font-size:22px;margin-top:7px;font-weight:750}@media(max-width:1023px){.portal-sidebar:not(.is-open){visibility:hidden}.portal-sidebar.is-open{visibility:visible}}.portal-search{display:flex;align-items:center;gap:9px;color:var(--portal-muted)}.portal-search input{min-width:220px}.portal-homework-card{text-align:left;padding:24px;background:var(--portal-surface);border:1px solid var(--portal-line);border-radius:17px;box-shadow:var(--portal-shadow)}.portal-homework-card 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