:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--primary:#0077f6;--primary-strong:#0058bd;--primary-container:#d7e7ff;--on-primary-container:#001b3d;--page-bg:#f8f8fc;--surface:#fff;--surface-low:#f1f3f8;--text:#20212a;--muted:#60616b;--outline:#777982;--outline-soft:#d9dbe4;--error:#ba1a1a;--error-container:#ffdad6;--success:#176b47;--shadow:0 18px 48px #1a304c1a;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,Segoe UI,Noto Sans SC,system-ui,sans-serif}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--primary:#61d4ff;--primary-strong:#8cdeff;--primary-container:#004d68;--on-primary-container:#c2eaff;--page-bg:#111318;--surface:#1b1d24;--surface-low:#242730;--text:#e2e2eb;--muted:#c2c6d0;--outline:#8c909a;--outline-soft:#41434d;--error:#ffb4ab;--error-container:#93000a;--success:#82d5ad;--shadow:0 18px 48px #0000004d}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--primary:#61d4ff;--primary-strong:#8cdeff;--primary-container:#004d68;--on-primary-container:#c2eaff;--page-bg:#111318;--surface:#1b1d24;--surface-low:#242730;--text:#e2e2eb;--muted:#c2c6d0;--outline:#8c909a;--outline-soft:#41434d;--error:#ffb4ab;--error-container:#93000a;--success:#82d5ad;--shadow:0 18px 48px #0000004d}}*{box-sizing:border-box}body{background:var(--page-bg);min-width:320px;min-height:100vh;color:var(--text);margin:0}button,input,select{font:inherit}button{color:inherit}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid color-mix(in srgb, var(--primary) 55%, transparent);outline-offset:2px}#app,.user-shell{min-height:100vh}.user-sidebar{z-index:20;border-right:1px solid var(--outline-soft);background:var(--surface);flex-direction:column;width:260px;padding:22px 16px 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p{color:var(--muted);margin:0;line-height:1.65}.activity-meta{color:var(--muted);font-size:12px}.class-card{color:var(--text);justify-content:space-between;align-items:center;gap:14px;text-decoration:none;display:flex}.user-loading,.user-empty{color:var(--muted);text-align:center;padding:48px 20px}.user-floating{z-index:10;color:#fff;background:var(--primary);width:58px;height:58px;box-shadow:var(--shadow);cursor:pointer;border:0;border-radius:50%;place-items:center;font-size:30px;display:grid;position:fixed;bottom:32px;right:34px}.user-dialog-backdrop{z-index:40;background:#00000073;place-items:center;padding:18px;display:grid;position:fixed;inset:0}.user-dialog{border:1px solid var(--outline-soft);background:var(--surface);width:min(100%,560px);max-height:min(90vh,850px);box-shadow:var(--shadow);border-radius:18px;padding:24px;overflow:auto}.user-dialog h2{margin:0 0 18px}.user-dialog form{gap:12px;display:grid}.user-dialog textarea{resize:vertical;border:1px solid var(--outline);min-height:180px;color:var(--text);background:var(--surface);font:inherit;border-radius:12px;padding:14px}.user-dialog select,.user-dialog input{color:var(--text);background:var(--surface)}.user-menu-toggle,.user-drawer-backdrop{display:none}.profile-card{grid-template-columns:72px 1fr;align-items:center;gap:18px;display:grid}.profile-avatar{object-fit:cover;background:var(--primary-container);border-radius:50%;width:72px;height:72px}.profile-fields{grid-column:1/-1;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;display:grid}.profile-field{background:var(--surface-low);border-radius:12px;padding:14px}.activity-detail h2{margin:8px 0 16px;font-size:clamp(24px,4vw,38px)}.activity-content{white-space:pre-wrap;margin-top:24px;line-height:1.85}.activity-summary{color:var(--muted);font-size:17px;line-height:1.75}.class-settings{flex:none;position:relative}.class-detail-header>div:first-child{min-width:0}.class-detail-header 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28px}.user-menu-toggle{z-index:30;padding:8px 12px;display:block;position:fixed;top:13px;left:14px}.user-drawer-backdrop{z-index:15;background:#00000059;border:0;display:block;position:fixed;inset:0}.user-floating{bottom:20px;right:20px}.user-page-header{align-items:flex-start}}.auth-shell{background:var(--surface);grid-template-columns:minmax(360px,.9fr) minmax(480px,1.1fr);min-height:100vh;display:grid}.brand-panel{color:#fff;background:linear-gradient(145deg,#0077f6,#003a63 75%);flex-direction:column;justify-content:space-between;min-height:100vh;padding:clamp(36px,6vw,88px);display:flex;position:relative;overflow:hidden}.brand-mark{color:#fff;background:#ffffff1f;border:1px solid #ffffff6b;border-radius:16px;place-items:center;width:48px;height:48px;font-size:22px;font-weight:750;display:grid}.brand-copy{z-index:1;max-width:530px;margin:auto 0;position:relative}.eyebrow{color:var(--primary);letter-spacing:.14em;margin:0 0 12px;font-size:12px;font-weight:750}.brand-panel .eyebrow{color:#b9dcff}.brand-copy h1{letter-spacing:-.045em;margin:0;font-size:clamp(40px,5vw,64px);font-weight:650;line-height:1.16}.brand-copy h1 span{color:#a9d5ff}.brand-description{color:#ffffffc7;max-width:390px;margin-top:24px;font-size:17px;line-height:1.85}.brand-footer{z-index:1;color:#ffffff9e;font-size:13px;position:relative}.brand-decoration{border:1px solid #ffffff1f;border-radius:50%;width:440px;height:440px;position:absolute;bottom:12%;right:-150px}.brand-decoration:before,.brand-decoration:after{content:"";border-radius:inherit;border:1px solid #ffffff1f;position:absolute;inset:42px}.brand-decoration:after{inset:88px}.brand-decoration span{background:#61d4ff;border-radius:50%;width:18px;height:18px;position:absolute;box-shadow:0 0 24px #61d4ffcc}.brand-decoration span:first-child{top:44px;left:82px}.brand-decoration span:nth-child(2){width:11px;height:11px;top:160px;right:43px}.brand-decoration span:nth-child(3){width:13px;height:13px;bottom:59px;left:161px}.form-panel{flex-direction:column;min-height:100vh;padding:28px clamp(28px,6vw,88px) 22px;display:flex}.form-topbar{justify-content:flex-end;align-items:center;min-height:42px;display:flex}.mobile-brand{align-items:center;gap:10px;font-weight:700;display:none}.brand-mark.small{color:#fff;background:var(--primary);border:0;border-radius:12px;width:34px;height:34px;font-size:16px}.theme-control select{border:1px solid var(--outline-soft);max-width:130px;color:var(--text);background:var(--surface);cursor:pointer;border-radius:999px;padding:8px 30px 8px 12px;font-size:12px}.form-content{width:min(100%,430px);margin:auto;padding:42px 0 52px}.form-content-wide{width:min(100%,470px)}.form-heading{margin-bottom:30px}.form-heading h2{color:var(--text);letter-spacing:-.035em;margin:0 0 9px;font-size:clamp(27px,3vw,34px);font-weight:680;line-height:1.2}.form-heading>p:last-child{color:var(--muted);font-size:14px;line-height:1.7}.auth-form{flex-direction:column;gap:11px;display:flex}.field-label{color:var(--text);margin-top:8px;font-size:13px;font-weight:650}.text-field{border:1px solid var(--outline);width:100%;height:52px;color:var(--text);background:var(--surface);border-radius:12px;padding:0 15px;font-size:14px;transition:border-color .16s,box-shadow .16s}.text-field::placeholder{color:var(--muted);opacity:.76}.text-field:focus{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary);outline:none}.password-wrap{position:relative}.password-wrap .text-field{padding-right:76px}.text-action,.inline-link,.remove-avatar{color:var(--primary);cursor:pointer;background:0 0;border:0;font-size:12px;font-weight:700}.text-action{position:absolute;top:50%;right:14px;transform:translateY(-50%)}.field-heading{justify-content:space-between;align-items:center;margin-top:7px;display:flex}.check-row{color:var(--muted);cursor:pointer;align-items:center;gap:10px;margin:8px 0 5px;font-size:13px;display:inline-flex}.check-row input{width:17px;height:17px;accent-color:var(--primary)}.primary-button,.secondary-button{cursor:pointer;border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;gap:12px;min-height:50px;padding:0 20px;font-size:14px;font-weight:700;transition:transform .16s,background .16s,box-shadow .16s;display:inline-flex}.primary-button{color:#fff;background:var(--primary);box-shadow:0 5px 12px color-mix(in srgb, var(--primary) 20%, transparent)}:root[data-theme=dark] .primary-button{color:#035}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .primary-button{color:#035}}.primary-button:hover:not(:disabled){background:var(--primary-strong);box-shadow:0 8px 18px color-mix(in srgb, var(--primary) 27%, transparent);transform:translateY(-1px)}.primary-button:disabled,.secondary-button:disabled{opacity:.55;cursor:not-allowed}.primary-button span{font-size:18px;font-weight:500}.secondary-button{color:var(--primary);border-color:var(--outline-soft);background:0 0}.secondary-button:hover:not(:disabled){background:color-mix(in srgb, var(--primary) 8%, transparent)}.switch-prompt,.terms-note{color:var(--muted);text-align:center;margin-top:24px;font-size:13px}.inline-link{font-size:inherit}.message{border-radius:10px;margin:8px 0 4px;padding:11px 13px;font-size:13px;line-height:1.55}.error-message{color:var(--error);background:color-mix(in srgb, var(--error) 10%, var(--surface))}.success-message{color:var(--success);background:color-mix(in srgb, var(--success) 10%, var(--surface))}.form-footer{color:var(--muted);justify-content:space-between;gap:12px;font-size:11px;display:flex}.build-time{z-index:5;color:var(--muted);opacity:.72;pointer-events:none;font-size:10px;line-height:1.4;position:fixed;bottom:10px;right:12px}.step-indicator{align-items:center;margin-bottom:30px;display:flex}.step-dot{border:1.5px solid var(--outline-soft);width:25px;height:25px;color:var(--muted);border-radius:50%;place-items:center;font-size:11px;display:grid}.step-dot.active,.step-dot.complete{color:#fff;border-color:var(--primary);background:var(--primary)}.step-line{background:var(--outline-soft);width:55px;height:2px;margin:0 9px}.step-line.active{background:var(--primary)}.step-caption{color:var(--muted);margin-left:auto;font-size:12px}.compact-heading{margin-bottom:19px}.compact-heading .eyebrow{margin-bottom:8px}.register-form{gap:8px}.avatar-picker-row{align-items:center;gap:16px;margin:0 0 7px;display:flex}.avatar-preview{border:3px solid color-mix(in srgb, var(--primary) 18%, var(--surface));width:82px;height:82px;color:var(--on-primary-container);background:var(--primary-container);border-radius:50%;flex:none;place-items:center;font-size:29px;font-weight:750;display:grid;position:relative;overflow:visible}.avatar-preview img{object-fit:cover;border-radius:50%;width:100%;height:100%}.avatar-upload-button{border:2px solid var(--surface);color:#fff;background:var(--primary);cursor:pointer;border-radius:50%;place-items:center;width:31px;height:31px;display:grid;position:absolute;bottom:-1px;right:-2px}.avatar-upload-button svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8px;width:16px;height:16px}.avatar-picker-row>div:last-child{flex-direction:column;gap:4px;display:flex}.avatar-picker-row strong{font-size:13px}.avatar-picker-row span{color:var(--muted);font-size:12px}.remove-avatar{align-self:flex-start;margin-top:2px;padding:0}.button-row{grid-template-columns:1fr 1.35fr;gap:12px;margin-top:9px;display:grid}.role-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.role-card{border:1.5px solid var(--outline-soft);min-height:205px;color:var(--text);background:var(--surface);text-align:center;cursor:pointer;border-radius:24px;flex-direction:column;justify-content:center;align-items:center;gap:9px;padding:22px 14px;transition:border-color .17s,background .17s,transform .17s;display:flex;position:relative}.role-card:hover{border-color:var(--primary);transform:translateY(-2px)}.role-card.selected{border-color:var(--primary);background:color-mix(in srgb, var(--primary-container) 45%, var(--surface));box-shadow:inset 0 0 0 1px var(--primary)}.role-card strong{font-size:17px}.role-caption{color:var(--muted);font-size:12px}.role-icon{width:58px;height:58px;color:var(--on-primary-container);background:var(--primary-container);border-radius:18px;place-items:center;font-size:22px;font-weight:750;display:grid}.student-icon{border-radius:50%}.selection-mark{color:#fff;background:var(--primary);opacity:0;border-radius:50%;place-items:center;width:22px;height:22px;font-size:12px;display:grid;position:absolute;top:12px;right:12px}.selected .selection-mark{opacity:1}.role-warning{color:#c62828;text-align:center;margin:20px 0 12px;font-size:14px;font-weight:800}:root[data-theme=dark] .role-warning{color:#ff8a80}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .role-warning{color:#ff8a80}}.role-actions{margin-top:8px}.terms-note{margin-top:16px;font-size:11px}.upload-heading{text-align:center}.upload-orbit{border:1px solid color-mix(in srgb, var(--primary) 30%, var(--outline-soft));width:84px;height:84px;color:var(--primary);background:color-mix(in srgb, var(--primary-container) 52%, var(--surface));border-radius:50%;place-items:center;margin:0 auto 22px;font-size:34px;display:grid}.upload-orbit span{animation:1.2s ease-in-out infinite alternate float}.upload-orbit.failed{color:var(--error);background:var(--error-container)}.upload-orbit.done span{animation:none}.upload-file-card{border:1px solid var(--outline-soft);background:var(--surface-low);border-radius:16px;align-items:center;gap:13px;padding:15px;display:flex}.file-badge{width:40px;height:40px;color:var(--primary);background:var(--primary-container);border-radius:12px;place-items:center;font-size:10px;font-weight:800;display:grid}.file-info{flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.file-info strong{text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.file-info span{color:var(--muted);font-size:11px}.file-percent{color:var(--primary);font-size:13px;font-weight:750}.progress-track{background:var(--surface-low);border-radius:99px;height:7px;margin:13px 2px 20px;overflow:hidden}.progress-track span{border-radius:inherit;background:var(--primary);height:100%;transition:width .18s;display:block}.full-button{width:100%;margin-top:8px}.success-view{text-align:center}.final-avatar{width:96px;height:96px;margin:0 auto 26px;overflow:hidden}.success-view h2{margin-bottom:12px}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.admin-login-page{background:var(--page-bg);place-items:center;min-height:100vh;padding:24px;display:grid}.admin-login-card{border:1px solid var(--outline-soft);background:var(--surface);width:min(100%,430px);box-shadow:var(--shadow);border-radius:24px;flex-direction:column;gap:13px;padding:38px;display:flex}.admin-login-card .brand-mark{margin-bottom:8px}.admin-login-card h1,.admin-page-heading h1{letter-spacing:-.035em;margin:0;font-size:clamp(28px,3vw,36px)}.admin-subtitle,.admin-page-heading p:last-child{color:var(--muted);margin:0;font-size:14px;line-height:1.6}.admin-shell{background:var(--page-bg);grid-template-columns:252px minmax(0,1fr);min-height:100vh;display:grid}.admin-sidebar{border-right:1px solid var(--outline-soft);background:var(--surface);flex-direction:column;height:100vh;padding:24px 16px 18px;display:flex;position:sticky;top:0}.admin-brand{align-items:center;gap:12px;padding:4px 8px 30px;display:flex}.admin-brand>div{flex-direction:column;gap:3px;display:flex}.admin-brand strong{font-size:14px}.admin-brand small{color:var(--muted);font-size:11px}.admin-nav{flex-direction:column;gap:7px;display:flex}.admin-nav a,.admin-nav-disabled{min-height:46px;color:var(--muted);border-radius:12px;align-items:center;gap:12px;padding:0 13px;font-size:13px;font-weight:650;text-decoration:none;display:flex}.admin-nav a:hover,.admin-nav a.router-link-active{color:var(--primary);background:color-mix(in srgb, var(--primary) 11%, var(--surface))}.admin-nav a span,.admin-nav-disabled span{text-align:center;width:20px;font-size:17px}.admin-nav a small{color:var(--muted);margin-left:auto;font-size:10px;font-weight:500}.admin-nav-disabled{opacity:.56}.admin-sidebar-footer{border-top:1px solid var(--outline-soft);color:var(--muted);justify-content:space-between;align-items:center;gap:8px;margin-top:auto;padding:14px 5px 0;font-size:12px;display:flex}.admin-sidebar-footer .secondary-button{min-height:36px;padding:0 14px;font-size:12px}.admin-main{min-width:0;padding:clamp(24px,4vw,54px)}.admin-page{width:min(100%,1200px);margin:0 auto}.admin-page-heading{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:28px;display:flex}.admin-page-heading>div{flex-direction:column;gap:9px;display:flex}.admin-page-heading .eyebrow{margin-bottom:0}.admin-search{gap:10px;margin-bottom:20px;display:flex}.admin-search .text-field{flex:1;min-width:0}.admin-search .primary-button,.admin-search .secondary-button{min-height:52px}.admin-table-card,.admin-detail-card,.admin-profile-card{border:1px solid var(--outline-soft);background:var(--surface);box-shadow:0 8px 28px color-mix(in srgb, var(--text) 4%, transparent);border-radius:18px}.admin-table-meta{color:var(--muted);justify-content:space-between;align-items:center;gap:14px;padding:19px 22px;font-size:12px;display:flex}.admin-table-meta strong{color:var(--text);font-size:14px}.admin-table-scroll{overflow-x:auto}.admin-table{border-collapse:collapse;text-align:left;width:100%;font-size:13px}.admin-table 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h2{color:var(--text);margin:12px 0 5px;font-size:17px}.admin-empty p{margin:0;font-size:13px;line-height:1.6}.admin-back-link{color:var(--primary);cursor:pointer;background:0 0;border:0;align-self:flex-start;padding:0;font-size:12px;font-weight:700}.admin-profile-card{align-items:center;gap:20px;margin-bottom:20px;padding:22px;display:flex}.admin-profile-avatar{border:3px solid color-mix(in srgb, var(--primary) 18%, var(--surface));width:86px;height:86px;color:var(--on-primary-container);background:var(--primary-container);border-radius:50%;flex:none;place-items:center;font-size:27px;font-weight:750;display:grid;position:relative;overflow:visible}.admin-profile-avatar img{object-fit:cover;border-radius:50%;width:100%;height:100%}.admin-profile-avatar .avatar-upload-button{border-color:var(--surface)}.admin-profile-avatar .avatar-upload-button:disabled{display:none}.admin-profile-title{flex:1;min-width:0}.admin-profile-title 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td:before{content:attr(data-label);color:var(--muted);flex:none;font-size:11px}.admin-profile-card{flex-wrap:wrap;align-items:flex-start;gap:14px;padding:17px}.admin-profile-avatar{width:70px;height:70px}.admin-profile-title{flex-basis:calc(100% - 90px)}.admin-info-grid,.admin-edit-grid,.admin-related-grid{grid-template-columns:1fr}.admin-edit-actions{grid-column:auto}}@media (width<=850px){.auth-shell{grid-template-columns:minmax(290px,.75fr) minmax(420px,1.25fr)}.brand-panel{padding:40px}.brand-copy h1{font-size:46px}.form-panel{padding-inline:36px}}@media (width<=650px){.auth-shell{display:block}.brand-panel{display:none}.form-panel{min-height:100svh;padding:16px 22px 18px}.form-topbar{justify-content:space-between}.mobile-brand{display:inline-flex}.form-content,.form-content-wide{width:min(100%,450px);padding:35px 0 44px}.form-footer{font-size:10px}}@media 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