:root{color-scheme:light;--bg: #f4f6f8;--surface: #ffffff;--text: #1a2332;--muted: #5c6b7a;--border: #d8e0e8;--accent: #2563eb;--accent-hover: #1d4ed8;--sidebar-width: 240px;--sidebar-width-collapsed: 64px;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;color:var(--text);background:var(--bg)}*{box-sizing:border-box}body{margin:0}a{color:inherit}button,.btn-primary{font:inherit;cursor:pointer}.btn-primary{display:inline-flex;align-items:center;justify-content:center;border:none;border-radius:8px;padding:.75rem 1.25rem;background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-text{border:none;background:transparent;color:var(--accent);padding:.25rem .5rem}.muted{color:var(--muted)}.error{color:#b91c1c}.login-page{min-height:100vh;display:grid;place-items:center;padding:2rem}.login-card{width:min(100%,420px);background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:2rem;text-align:center;box-shadow:0 10px 30px #10182814}.login-logo,.brand-logo{width:48px;height:48px;object-fit:contain}.login-subtitle{color:var(--muted)}.portal{min-height:100vh;display:flex;flex-direction:column}.portal-header{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.75rem 1.25rem;background:var(--surface);border-bottom:1px solid var(--border);position:relative;z-index:12}.portal-header-start,.portal-brand,.portal-user{display:flex;align-items:center;gap:.75rem}.mobile-menu-toggle{display:none;align-items:center;justify-content:center;flex-shrink:0;border:none;background:transparent;color:var(--text);border-radius:8px;padding:.35rem;cursor:pointer}.mobile-menu-toggle:hover{background:#eef4ff}.mobile-menu-backdrop{display:none}.portal-body{flex:1;display:grid;grid-template-columns:var(--sidebar-width) 1fr;min-height:0;transition:grid-template-columns .2s ease}.portal-body--sidebar-collapsed{grid-template-columns:var(--sidebar-width-collapsed) 1fr}.portal-sidebar{background:var(--surface);border-right:1px solid var(--border);padding:1rem .75rem;overflow:auto}.sidebar-toggle{display:flex;align-items:center;justify-content:center;width:100%;margin-bottom:.5rem;border:none;background:transparent;color:var(--muted);border-radius:8px;padding:.5rem;cursor:pointer}.sidebar-toggle:hover{background:#eef4ff;color:var(--text)}.sidebar-toggle-icon{transition:transform .2s ease}.sidebar-toggle-icon--collapsed{transform:rotate(180deg)}.portal-sidebar--collapsed .sidebar-link{justify-content:center;padding-inline:.5rem}.portal-sidebar--collapsed .sidebar-group+.sidebar-group{margin-top:.5rem}.sidebar-group+.sidebar-group{margin-top:1rem}.sidebar-group-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);padding:0 .5rem .35rem}.sidebar-link{display:flex;align-items:center;gap:.65rem;padding:.55rem .65rem;border-radius:8px;text-decoration:none}.sidebar-link:hover,.sidebar-link.active{background:#eef4ff}.sidebar-icon{width:20px;height:20px}.portal-main{min-height:0;display:flex;flex-direction:column}.module-frame{flex:1;display:flex;flex-direction:column;min-height:0}.module-loading{display:flex;align-items:center;gap:.75rem;padding:1rem;color:var(--muted)}.spinner{width:20px;height:20px;border:2px solid #cbd5e1;border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.module-iframe{flex:1;width:100%;border:none;min-height:0}.module-error,.module-not-found,.new-tab-placeholder{padding:2rem}@media(max-width:900px){.mobile-menu-toggle{display:inline-flex}.mobile-menu-backdrop{display:block;position:fixed;right:0;bottom:0;left:0;top:57px;background:#00000059;z-index:10}.portal-body,.portal-body--sidebar-collapsed{grid-template-columns:1fr}.portal-sidebar{display:none;border-right:none;border-bottom:none;padding:.5rem .75rem 1rem;position:relative;z-index:11}.portal-sidebar--mobile-open{display:block;border-bottom:1px solid var(--border)}.portal-sidebar--collapsed .sidebar-link{justify-content:flex-start;padding-inline:.65rem}.portal-user-email{display:none}}