.portal-shell{min-height:100vh;display:grid;grid-template-columns:260px 1fr;background:var(--bg)}.portal-sidebar{border-right:1px solid var(--rule);padding:28px 24px;display:flex;flex-direction:column;gap:32px;position:sticky;top:0;height:100vh;background:rgba(255,255,255,.92);backdrop-filter:blur(12px)}.portal-brand{font-family:var(--display);font-weight:500;font-size:22px;letter-spacing:-.01em;color:var(--ink);text-decoration:none}.portal-brand .dot{font-weight:600}.portal-nav{display:flex;flex-direction:column;gap:4px}.portal-nav a{display:block;padding:10px 12px;border-radius:2px;font-size:15px;font-weight:500;color:var(--ink-2);text-decoration:none;transition:background .2s,color .2s}.portal-nav a.active,.portal-nav a:hover{background:var(--purple-tint);color:var(--ink)}.portal-nav-label{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);padding:0 12px;margin-bottom:8px}.portal-main{padding:40px clamp(24px,4vw,56px) 80px;max-width:960px}.portal-page-title{font-family:var(--display);font-size:clamp(36px,4vw,52px);line-height:1.02;letter-spacing:-.01em}.portal-lead{margin-top:14px;font-size:17px;line-height:1.6;color:var(--ink-2);max-width:52ch}.portal-grid{display:grid;gap:16px;margin-top:32px}.portal-card{border:1px solid var(--rule);padding:24px 28px;transition:border-color .2s,box-shadow .2s;text-decoration:none;color:inherit;display:block}.portal-card:hover{border-color:var(--purple);box-shadow:0 8px 32px -24px rgba(91,73,224,.35)}.portal-card h3{font-family:var(--display);font-size:24px;font-weight:400;line-height:1.1}.portal-card p{margin-top:8px;font-size:15px;line-height:1.55;color:var(--ink-2)}.portal-card-meta{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}.portal-tag{display:inline-flex;align-items:center;padding:5px 11px;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:var(--surface);color:var(--ink);border:2px solid var(--rule)}.portal-tag.purple{background:var(--purple-tint);color:var(--purple);border:2px solid var(--purple);border-color:var(--purple)}.portal-tag.ok{background:rgba(124,111,247,.12);color:var(--purple);border-color:rgba(124,111,247,.35)}.portal-tag.muted{background:var(--surface);color:var(--muted);border-color:var(--rule)}.portal-section{margin-top:48px}.portal-section h2{font-family:var(--display);font-size:28px;font-weight:400;margin-bottom:20px}.portal-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--rule)}.portal-list-item{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;padding:18px 0;border-bottom:1px solid var(--rule)}.portal-list-item h4{font-size:16px;font-weight:700;color:var(--ink)}.portal-list-item p{margin-top:4px;font-size:14px;color:var(--ink-2);line-height:1.55;font-weight:500}.portal-link-btn{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--purple);text-decoration:none;white-space:nowrap}.portal-link-btn:hover{text-decoration:underline}.portal-inline-confirm,.portal-lesson-actions{display:flex;flex-direction:column;align-items:flex-end;gap:10px}.portal-inline-confirm{padding:12px 14px;border:2px solid var(--rule);background:var(--surface)}.portal-inline-confirm-text{font-size:13px;font-weight:600;color:var(--ink);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{font-family:var(--sans);font-size:13px;font-weight:600;padding:8px 14px;border:2px solid #c81e1e;background:#FEF3F2;color:#C81E1E;cursor:pointer;border-radius:2px;transition:background .2s,color .2s,border-color .2s}.portal-inline-confirm-danger:hover:not(:disabled){background:#C81E1E;border-color:#C81E1E;color:#fff}.portal-inline-confirm-danger:disabled{opacity:.6;cursor:not-allowed}.portal-prompt{border:1px solid var(--rule);padding:24px;margin-bottom:16px}.portal-prompt-head{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:12px}.portal-prompt h3{font-family:var(--display);font-size:22px;font-weight:400}.portal-prompt-body{margin-top:14px;padding:16px;background:var(--surface);font-size:14px;line-height:1.65;color:var(--ink-2);white-space:pre-wrap}.portal-copy-btn{font-family:var(--sans);font-size:13px;font-weight:600;padding:8px 14px;border:2px solid var(--rule);background:var(--bg);color:var(--ink);cursor:pointer;border-radius:2px;transition:.2s}.portal-copy-btn:hover{border-color:var(--purple);background:var(--purple-tint);color:var(--purple)}.portal-copy-btn:disabled{opacity:.5;cursor:not-allowed}.portal-login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.portal-login-card{width:min(100%,420px);border:1px solid var(--rule);padding:40px 36px}.portal-login-card h1{font-family:var(--display);font-size:32px;margin-top:12px}.portal-form-stack{display:flex;flex-direction:column;gap:16px;margin-top:28px}.portal-field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px;color:var(--ink)}.portal-field input,.portal-field textarea{width:100%;padding:12px 14px;border:2px solid var(--rule);font-family:var(--sans);font-size:16px;background:var(--bg);color:var(--ink);border-radius:2px;font-weight:500}.portal-field textarea{resize:vertical;min-height:80px;line-height:1.5}.portal-field input:focus,.portal-field textarea:focus{outline:none;border-color:var(--purple);background:#FEFEFF}.portal-error{font-size:14px;font-weight:600;color:#C81E1E;background:#FEF3F2;padding:12px 16px;border-left:3px solid #c81e1e}.portal-empty{padding:32px;border:2px dashed var(--rule);background:var(--surface);color:var(--ink);font-size:15px;font-weight:500;line-height:1.6;text-align:center}.portal-sidebar-footer{margin-top:auto;display:flex;flex-direction:column;gap:8px}.portal-sidebar-footer a,.portal-sidebar-footer button{font-size:14px;color:var(--ink-2);text-decoration:none;background:none;border:none;cursor:pointer;text-align:left;padding:0;font-family:var(--sans)}.portal-sidebar-footer a:hover,.portal-sidebar-footer button:hover{color:var(--ink)}.portal-admin-main{max-width:1100px}.portal-admin-bar{margin-bottom:8px}.portal-admin-meta{font-size:14px;color:var(--ink-2);margin-top:6px}.portal-admin-split{display:grid;grid-template-columns:minmax(280px,380px) 1fr;gap:32px;align-items:start}.portal-admin-form{border:2px solid var(--rule);padding:24px;background:var(--surface)}.portal-admin-bulk-form,.portal-admin-form{display:flex;flex-direction:column;gap:14px}.portal-admin-bulk-form{padding-top:8px;border-top:2px dashed var(--rule)}.portal-admin-bulk-errors{border:2px solid var(--rule);padding:12px 14px;background:var(--bg);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 h3,.portal-admin-subtitle{font-family:var(--display);font-size:22px;font-weight:500;color:var(--ink)}.portal-admin-fieldset{border:2px solid var(--rule);padding:14px 16px;display:flex;flex-direction:column;gap:8px;background:var(--bg)}.portal-admin-fieldset legend{font-size:13px;font-weight:700;color:var(--ink);padding:0 8px}.portal-check{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--ink);cursor:pointer}.portal-admin-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.portal-admin-form select{width:100%;padding:12px 14px;border:2px solid var(--rule);font-family:var(--sans);font-size:15px;background:var(--bg);color:var(--ink);font-weight:500}.portal-admin-form select:focus{outline:none;border-color:var(--purple)}.portal-admin-hint{font-size:13px;color:var(--ink-2);margin-top:-6px;line-height:1.5}.portal-success{font-size:14px;font-weight:600;color:#027948;background:#ECFDF3;padding:12px 16px;border-left:3px solid #027948}.portal-admin-member{padding:18px 0;border-bottom:2px solid var(--rule)}.portal-admin-member-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}.portal-admin-member h4{font-weight:600;color:var(--ink)}.portal-admin-member-actions{display:flex;gap:8px;flex-shrink:0}.portal-admin-edit{margin-top:14px;padding:16px;border:2px dashed var(--rule);background:var(--surface)}.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:2px solid var(--rule);background:var(--bg)}.portal-admin-details summary{cursor:pointer;padding:16px 20px;font-family:var(--display);font-size:20px;font-weight:500;list-style:none;background:var(--surface);transition:background .2s}.portal-admin-details summary:hover{background:var(--purple-tint)}.portal-admin-details summary::-webkit-details-marker{display:none}.portal-admin-details[open] summary{border-bottom:2px solid var(--rule);background:var(--bg)}.portal-admin-edit-form{border:0;margin:0}@media (max-width:900px){.portal-shell{grid-template-columns:1fr}.portal-sidebar{position:static;height:auto;border-right:0;border-bottom:1px solid var(--rule);padding:20px}.portal-nav{flex-direction:row;flex-wrap:wrap}.portal-main{padding:28px 20px 60px}.portal-admin-row,.portal-admin-split,.portal-list-item{grid-template-columns:1fr}}