.portal-page-title{font-family:var(--di-font-display,inherit);font-weight:600;font-size:clamp(32px,4vw,44px);line-height:1.18;letter-spacing:-.01em}.portal-lead{margin-top:8px;font-size:18px;line-height:28px;color:var(--di-on-surface-variant);max-width:62ch}.portal-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}.portal-card{display:block;padding:24px;border-radius:var(--di-radius-lg);background:var(--di-surface-lowest);box-shadow:inset 0 0 0 1px var(--di-outline-variant);color:inherit;text-decoration:none;transition:box-shadow .15s}.portal-card:hover{box-shadow:inset 0 0 0 1px var(--di-outline-variant),var(--di-elevation-2)}.portal-card h3{font-size:22px;line-height:28px}.portal-card p{margin-top:4px;font-size:15px;line-height:22px;color:var(--di-on-surface-variant)}.portal-card-meta{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}.portal-tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:14px;font-size:13px;font-weight:600;background:var(--di-surface-high);color:var(--di-on-surface-variant)}.portal-tag.ok,.portal-tag.purple{background:var(--di-primary-container);color:var(--di-on-primary-container)}.portal-tag.muted{background:var(--di-surface-high);color:var(--di-on-surface-variant)}.portal-section{margin-top:8px}.portal-section h2{font-size:26px;line-height:32px;margin-bottom:16px}.portal-list{display:flex;flex-direction:column;border-radius:var(--di-radius-lg);box-shadow:inset 0 0 0 1px var(--di-outline-variant);background:var(--di-surface-lowest);overflow:hidden}.portal-list-item{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;padding:14px 20px}.portal-list-item+.portal-list-item{border-top:1px solid var(--di-divider)}.portal-list-item h4{font-family:var(--di-font-body);font-size:16px;font-weight:600;color:var(--di-on-surface)}.portal-list-item p{margin-top:2px;font-size:14px;line-height:20px;color:var(--di-on-surface-variant)}.portal-link-btn{display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 12px;border-radius:20px;font-size:14px;font-weight:600;color:var(--di-primary);white-space:nowrap}.portal-link-btn:hover{background:rgba(74,58,212,.09)}.diui .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border:0;border-radius:24px;font-family:inherit;font-size:15px;font-weight:600;cursor:pointer;transition:background .15s,box-shadow .15s}.diui .btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:20px}.diui .btn-solid{background:var(--di-primary);color:var(--di-on-primary);border:0}.diui .btn-solid:hover{background:var(--di-primary-hover);border-color:transparent;box-shadow:var(--di-elevation-1)}.diui .btn:disabled{opacity:.5;cursor:not-allowed}.diui .link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--di-primary)}.diui .link-arrow span:after{display:none}.portal-copy-btn{display:inline-flex;align-items:center;height:40px;padding:0 20px;border:0;border-radius:20px;background:var(--di-primary-container);color:var(--di-on-primary-container);font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:background .15s}.portal-copy-btn:hover{background:var(--di-primary-container-hover)}.portal-copy-btn:disabled{opacity:.5;cursor:not-allowed}.portal-inline-confirm{display:flex;flex-direction:column;align-items:flex-end;gap:10px;padding:12px 14px;border-radius:var(--di-radius-sm);background:var(--di-surface-low)}.portal-inline-confirm-text{font-size:13px;font-weight:600;color:var(--di-on-surface);text-align:right;line-height:1.45;max-width:240px}.portal-inline-confirm-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.portal-inline-confirm-danger{height:40px;padding:0 20px;border:0;border-radius:20px;background:var(--di-error-container);color:var(--di-on-error-container);font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:background .15s,color .15s}.portal-inline-confirm-danger:hover:not(:disabled){background:var(--di-error);color:#fff}.portal-inline-confirm-danger:disabled{opacity:.6;cursor:not-allowed}.portal-login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--di-surface,#FCFBFF)}.portal-login-card{width:min(100%,440px);padding:40px 36px;border-radius:var(--di-radius-xl);background:var(--di-surface-lowest);box-shadow:inset 0 0 0 1px var(--di-outline-variant)}.portal-login-card h1{font-size:32px;line-height:40px;margin-top:20px}.portal-form-stack{display:flex;flex-direction:column;gap:16px;margin-top:28px}.portal-error{color:var(--di-on-error-container);background:var(--di-error-container)}.portal-error,.portal-success{font-size:14px;font-weight:600;line-height:20px;padding:12px 16px;border-radius:var(--di-radius-sm)}.portal-success{color:#06381E;background:var(--di-success-container)}.portal-empty{padding:32px;border-radius:var(--di-radius-lg);background:var(--di-surface-low);color:var(--di-on-surface-variant);font-size:15px;line-height:24px;text-align:center}.portal-admin-bar{margin-bottom:0}.portal-admin-meta{font-size:14px;color:var(--di-on-surface-variant)}.portal-admin-split{display:grid;grid-template-columns:minmax(280px,380px) 1fr;gap:32px;align-items:start}.portal-admin-form{padding:24px;border-radius:var(--di-radius-lg);background:var(--di-surface-low)}.portal-admin-bulk-form,.portal-admin-form{display:flex;flex-direction:column;gap:14px}.portal-admin-bulk-form{padding-top:12px;border-top:1px dashed var(--di-outline-variant)}.portal-admin-bulk-errors{padding:12px 14px;border-radius:var(--di-radius-sm);background:var(--di-surface-lowest);font-size:14px}.portal-admin-bulk-errors ul{margin:6px 0 0;padding-left:18px}.portal-admin-bulk-errors li+li{margin-top:4px}.portal-admin-form code{font-size:12px}.portal-admin-form form{display:flex;flex-direction:column;gap:16px}.portal-admin-form h3,.portal-admin-subtitle{font-size:22px;line-height:28px;font-weight:600;color:var(--di-on-surface)}h3.portal-admin-subtitle{margin-bottom:16px}.portal-admin-form form>.btn{align-self:flex-start}.portal-admin-fieldset{margin:0;padding:14px 16px;border:1px solid var(--di-outline-variant);border-radius:var(--di-radius-sm);display:flex;flex-direction:column;gap:8px;background:var(--di-surface-lowest)}.portal-admin-fieldset legend{font-size:13px;font-weight:600;color:var(--di-on-surface);padding:0 8px}.portal-check{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--di-on-surface);cursor:pointer}.portal-check input{accent-color:var(--di-primary);width:18px;height:18px}.portal-admin-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.portal-admin-form select{width:100%;padding:14px 16px;border:1px solid var(--di-outline);border-radius:var(--di-radius-xs);font-family:inherit;font-size:16px;background:var(--di-surface-lowest);color:var(--di-on-surface)}.portal-admin-form select:focus{outline:none;border-color:var(--di-primary);box-shadow:inset 0 0 0 1px var(--di-primary)}.portal-admin-hint{font-size:13px;color:var(--di-on-surface-variant);margin-top:-6px;line-height:1.5}.portal-admin-member{padding:16px 20px}.portal-admin-member+.portal-admin-member{border-top:1px solid var(--di-divider)}.portal-admin-member .portal-card-meta{margin-top:8px}.portal-admin-member p{font-size:14px;line-height:20px;color:var(--di-on-surface-variant)}.portal-admin-member-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;flex-wrap:wrap}.portal-admin-member h4{font-family:var(--di-font-body);font-weight:600;color:var(--di-on-surface)}.portal-admin-member-actions{display:flex;gap:8px;flex-shrink:0}.portal-admin-edit{margin-top:14px;padding:16px;border-radius:var(--di-radius-sm);background:var(--di-surface-low)}.portal-admin-checks{display:flex;flex-wrap:wrap;gap:12px 20px}.portal-admin-lessons,.portal-admin-materials{display:grid;gap:24px}.portal-admin-details{border-radius:var(--di-radius-lg);background:var(--di-surface-lowest);box-shadow:inset 0 0 0 1px var(--di-outline-variant);overflow:hidden}.portal-admin-details summary{cursor:pointer;padding:16px 20px;font-family:var(--di-font-display);font-size:20px;font-weight:600;list-style:none;background:var(--di-surface-low);transition:background .15s}.portal-admin-details summary:hover{background:var(--di-surface-container)}.portal-admin-details summary::-webkit-details-marker{display:none}.portal-admin-details[open] summary{border-bottom:1px solid var(--di-outline-variant);background:var(--di-surface-lowest)}.portal-admin-edit-form{border:0;margin:0}@media (max-width:900px){.portal-admin-row,.portal-admin-split,.portal-list-item{grid-template-columns:1fr}}