:root{color-scheme:light;--brand-blue:#7cc8ec;--brand-blue-soft:color-mix(in srgb,var(--brand-blue) 18%,#fff);--ink:#111;--ink2:#444;--ink3:#888;--shell-dark:#080808;--shell-dark-2:#151515;--workspace-bg:#f6f7f8;--card-bg:#fff;--card-border:#e4e7eb;--soft-shadow:0 10px 24px rgba(17,17,17,0.07);--tight-shadow:0 6px 16px rgba(17,17,17,0.055);--radius-lg:14px;--radius-md:10px;--radius-sm:8px;--brand:var(--brand-blue);--brand-soft:var(--brand-blue-soft);--border:var(--card-border);--bg:var(--workspace-bg);--white:#fff;--radius:10px;--topbar-height:68px;--sidebar-width:218px;--space-page:clamp(16px,2vw,28px);font-family:Lexend,Inter,Segoe UI,Arial,sans-serif;color:var(--ink);background:var(--workspace-bg);line-height:1.45;--sidebar-width:264px}*{box-sizing:border-box}body{margin:0;background:var(--workspace-bg);font-size:14px}button,input,select,textarea{font:inherit}button{border:0;cursor:pointer}a{color:inherit}h1,h2,h3,p{margin:0}.skip{position:absolute;left:12px;top:-40px;background:#fff;padding:6px 10px;z-index:50}.skip:focus{top:8px}.ui-icon{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.app-shell{min-height:100vh;background:linear-gradient(180deg,#fff 0,var(--workspace-bg) 150px),var(--workspace-bg)}.topbar{min-height:var(--topbar-height);position:-webkit-sticky;position:sticky;top:0;z-index:25;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:9px 18px 9px 14px;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(17,17,17,.08);box-shadow:0 8px 22px rgba(17,17,17,.07);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand-lockup{display:inline-flex;align-items:center;gap:11px;min-width:224px;color:inherit;text-decoration:none}.brand-mark.logo-container{width:62px;min-height:50px;display:inline-grid;place-items:center;border-radius:16px;padding:7px 10px;border:1px solid rgba(17,17,17,.06);background:#fff;box-shadow:0 8px 18px rgba(17,17,17,.12)}.brand-mark .brand-logo{width:40px;height:40px;object-fit:contain}.brand-title-shell{display:grid;grid-gap:2px;gap:2px;line-height:1.05}.brand-title-shell strong{max-width:220px;color:#111;font-size:.98rem;font-weight:800}.brand-title-shell span{color:#30343a;font-size:.78rem;font-weight:700}.brand-title-shell em{color:var(--brand-blue);font-style:normal;font-weight:800}.topbar-actions{display:flex;align-items:center;gap:9px}.active-role,.topbar-signout{min-height:36px;display:inline-flex;align-items:center;gap:8px;padding:0 10px;border-radius:999px;border:1px solid var(--card-border);background:#fff;color:#111;font-size:.84rem;font-weight:800}.control-icon{width:24px;height:24px;display:inline-grid;place-items:center;border-radius:999px;background:var(--brand-blue-soft);color:var(--ink)}.workspace.with-menu{display:grid;grid-template-columns:var(--sidebar-width) minmax(0,1fr);align-items:start;background:var(--workspace-bg)}.side-menu{position:-webkit-sticky;position:sticky;top:var(--topbar-height);min-height:calc(100vh - var(--topbar-height));display:grid;align-content:start;grid-gap:10px;gap:10px;padding:30px 18px;background:linear-gradient(180deg,var(--shell-dark),var(--shell-dark-2));box-shadow:18px 0 46px rgba(17,17,17,.14)}.menu-item{min-height:54px;width:100%;display:grid;grid-template-columns:38px max-content;grid-gap:10px;gap:10px;align-items:center;border-radius:16px;padding:8px 12px;background:transparent;color:rgba(255,255,255,.78);font-size:1rem;font-weight:800;text-align:left;text-decoration:none}.menu-label{white-space:nowrap}.menu-item:hover{background:rgba(255,255,255,.08);color:#fff}.menu-item.active{background:linear-gradient(90deg,color-mix(in srgb,var(--brand-blue) 86%,#fff),color-mix(in srgb,var(--brand-blue) 54%,#111));color:#071016;box-shadow:0 12px 28px color-mix(in srgb,var(--brand-blue) 28%,transparent)}.menu-icon{width:38px;height:38px;display:inline-grid;place-items:center;border-radius:13px;background:rgba(255,255,255,.08)}.menu-item.active .menu-icon{background:rgba(255,255,255,.36)}.menu-item[aria-disabled=true]{opacity:.55;cursor:default}.page{padding:22px var(--space-page) 40px}.section-head{margin-bottom:15px}.ah-header h1,.hd-home-head h1,.section-head h1{margin-bottom:5px;font-size:clamp(1.35rem,2vw,1.75rem);font-weight:800;line-height:1.1;letter-spacing:0}.ah-header p,.hd-home-head p,.muted,.section-head p,.table-caption{color:#66707a;font-size:.9rem}.panel{padding:16px;border:1px solid var(--card-border);border-radius:var(--radius-lg);background:#fff;box-shadow:var(--tight-shadow)}.panel h2{margin-bottom:10px;font-size:1rem;font-weight:700}.link-button,.primary-button,.secondary-button{min-height:42px;border-radius:999px;padding:0 16px;font-weight:800;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.primary-button{background:var(--brand-blue);color:#071016;box-shadow:0 12px 24px color-mix(in srgb,var(--brand-blue) 26%,transparent)}.primary-button:hover{background:color-mix(in srgb,var(--brand-blue) 78%,#fff)}.secondary-button{border:1px solid var(--card-border);background:#fff;color:#111}.link-button{min-height:auto;padding:0;border:0;background:transparent;box-shadow:none}.link-button,label{color:#333;font-weight:700}label{display:grid;grid-gap:8px;gap:8px;font-size:.92rem}input,select,textarea{width:100%;border:1px solid #d4dae1;border-radius:12px;padding:12px 14px;background:#fff;color:#111}input:focus,select:focus,textarea:focus{border-color:var(--brand-blue);outline:3px solid color-mix(in srgb,var(--brand-blue) 32%,transparent)}.error{padding:12px 14px;border-left:4px solid #111;border-radius:8px;background:#eee;color:#111}.user-table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--card-border);border-radius:16px;overflow:hidden;box-shadow:0 8px 22px rgba(17,17,17,.04)}.user-table th{background:#f7f8fa;color:#343a40;text-align:left;padding:12px 14px;border-bottom:1px solid var(--card-border);font-size:.82rem}.user-table td{padding:12px 14px;border-bottom:1px solid #eef1f4;vertical-align:top}.user-table tr:last-child td{border-bottom:0}.hd-dashboard{display:grid;grid-gap:10px;gap:10px}.hd-detail-card,.hd-programme-strip,.hd-stat-chip{background:#fff;border:1px solid var(--card-border);border-left:4px solid var(--brand-blue);border-radius:var(--radius-lg)}.hd-programme-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));overflow:hidden}.hd-programme-cell{display:grid;grid-gap:2px;gap:2px;min-width:0;padding:10px 14px}.hd-programme-cell+.hd-programme-cell{border-left:1px solid var(--card-border)}.hd-label{color:#666;font-size:10px;font-weight:500;letter-spacing:.06em;text-transform:uppercase}.hd-detail-card strong,.hd-programme-cell strong{font-size:13px;font-weight:600}.hd-programme-cell small,.hd-stat-label{color:#666;font-size:11px}.hd-detail-grid,.hd-stat-grid{display:grid;grid-gap:8px;gap:8px}.hd-stat-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.hd-detail-grid{grid-template-columns:1.3fr .9fr}.hd-detail-card,.hd-stat-chip{padding:12px 14px}.hd-stat-chip{display:grid;grid-gap:4px;gap:4px}.hd-stat-value{font-size:22px;font-weight:500;line-height:1}.hd-stat-value span{color:#888;font-size:13px}.hd-progress{display:block;height:3px;margin-top:6px;border-radius:3px;background:var(--workspace-bg);overflow:hidden}.hd-progress i{display:block;height:100%;background:var(--brand-blue)}.task-row{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid #eef1f4}.task-row:last-child{border-bottom:0}.otj-line{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid #eef1f4}.login-page{min-height:100vh;display:grid;grid-template-columns:minmax(320px,440px) 1fr;background:#111}.login-panel{min-height:100vh;display:flex;flex-direction:column;justify-content:center;gap:28px;padding:48px;background:#fff;border-right:1px solid #d8d8d8}.login-logo{width:72px;height:72px;object-fit:contain}.login-copy h1{margin:0 0 10px;font-size:2.6rem;line-height:1;font-weight:800}.login-copy p{color:#555;line-height:1.6}.login-form{display:grid;grid-gap:16px;gap:16px}.login-side{display:flex;align-items:end;padding:56px;color:#fff;background:linear-gradient(135deg,rgba(255,255,255,.08) 0 25%,transparent 25% 50%,rgba(255,255,255,.08) 50% 75%,transparent 75%),#111;background-size:28px 28px}.login-side-copy{max-width:560px;border-left:4px solid var(--brand-blue);padding-left:18px}.login-side-copy h2{margin:0 0 8px;color:#fff;font-size:clamp(2rem,4vw,4rem);line-height:1;font-weight:800}.login-side-copy sub{color:var(--brand-blue);font-size:.46em;font-weight:800}.login-side-copy p{margin:0;color:#f1f1f1;font-size:1.35rem}.lesson-frame{width:100%;height:70vh;border:1px solid var(--card-border);border-radius:var(--radius-lg);background:#fff}.lesson-note{margin-top:8px;color:#66707a}.file-link{color:#111;font-weight:700}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.role-switch{display:flex;align-items:center;gap:8px}.role-switch select{min-height:36px;border-radius:999px;border:1px solid var(--card-border);background:#fff;padding:0 12px;font-weight:800}.record-tabs{display:flex;gap:8px;margin-bottom:16px}.record-tabs a{min-height:36px;display:inline-flex;align-items:center;padding:0 14px;border-radius:999px;border:1px solid var(--card-border);background:#fff;font-weight:800;text-decoration:none}.record-tabs a.active{background:var(--brand-blue);border-color:transparent;color:#071016}.stack-form{display:grid;grid-gap:12px;gap:12px;max-width:560px}.inline-form label,.stack-form label{display:grid;grid-gap:4px;gap:4px;font-size:.9rem;font-weight:700}.inline-form select,.inline-form textarea,.stack-form input,.stack-form select,.stack-form textarea{min-height:42px;border:1px solid var(--card-border);border-radius:10px;padding:8px 10px;background:#fff;font-weight:500}.form-row{display:flex;flex-wrap:wrap;gap:8px;align-items:end}.banner-error{margin-bottom:12px;padding:10px 12px;border-radius:10px;background:#fff4f4;color:#8a1f1f;font-weight:700}.detail-list{display:grid;grid-template-columns:180px minmax(0,1fr);grid-gap:8px 16px;gap:8px 16px}.detail-list dt{color:#66707a;font-weight:700}.detail-list dd{margin:0}@media (max-width:980px){.hd-detail-grid,.hd-programme-strip,.hd-stat-grid,.login-page,.workspace.with-menu{grid-template-columns:1fr}.topbar{position:static;align-items:flex-start;flex-direction:column}.side-menu{position:static;min-height:auto;width:100%;display:flex;flex-wrap:wrap;padding:14px}.menu-item{flex:0 0 auto;width:auto}.login-side{min-height:280px;align-items:center}}