:root{--bg:#0f1115;--surface:#171a21;--surface-2:#1f232c;--border:#2a2f3a;--text:#e6e8eb;--text-muted:#9aa1ac;--accent:#4f8cff;--accent-hover:#6fa0ff;--danger:#ff6b6b;--success:#3fbf6f;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}h1{margin:0 0 16px;font-size:22px}h3{margin:0 0 8px}.muted{color:var(--text-muted)}.small{font-size:12px}.mono{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.break-all{word-break:break-all}.app-shell{min-height:100vh;display:flex}.sidebar{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;width:220px;padding:20px 12px;display:flex}.brand{padding:0 12px 20px;font-size:16px;font-weight:700}.sidebar nav{flex-direction:column;gap:2px;display:flex}.nav-link{color:var(--text-muted);border-radius:6px;padding:8px 12px;font-size:14px;text-decoration:none}.nav-link:hover{background:var(--surface-2);color:var(--text)}.nav-link.active{background:var(--surface-2);color:var(--accent);font-weight:600}.sidebar-footer{border-top:1px solid var(--border);flex-direction:column;gap:8px;margin-top:auto;padding:12px;display:flex}.role-tag{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;font-size:12px}.content{flex:1;max-width:1000px;padding:32px 40px}.page-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.card{background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-bottom:20px;padding:20px}.form-card{flex-direction:column;gap:14px;max-width:480px;display:flex}label{color:var(--text-muted);flex-direction:column;gap:6px;font-size:13px;display:flex}input,select,textarea{background:var(--surface-2);border:1px solid var(--border);color:var(--text);border-radius:6px;padding:9px 10px;font-family:inherit;font-size:14px}textarea{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px}input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:0}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:6px;width:fit-content;padding:10px 16px;font-size:14px;font-weight:600;text-decoration:none;display:inline-block}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-link{color:var(--accent);cursor:pointer;text-align:left;background:0 0;border:none;padding:0;font-size:13px}.table{border-collapse:collapse;width:100%}.table th{text-align:left;color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;border-bottom:1px solid var(--border);padding:8px 10px;font-size:12px}.table td{border-bottom:1px solid var(--border);padding:10px;font-size:14px}.table a{color:var(--accent);text-decoration:none}.row-actions{align-items:center;gap:14px;display:flex}.kv-table td{border-bottom:1px solid var(--border);padding:8px 10px;font-size:14px}.kv-table td:first-child{color:var(--text-muted);width:220px}.stat-row{gap:16px;display:flex}.stat-tile{background:var(--surface);border:1px solid var(--border);border-radius:10px;min-width:160px;padding:20px 24px}.stat-value{font-size:28px;font-weight:700}.stat-label{color:var(--text-muted);margin-top:4px;font-size:13px}.error-banner{border:1px solid var(--danger);color:var(--danger);background:#ff6b6b1f;border-radius:6px;padding:10px 12px;font-size:13px}.success-banner{border:1px solid var(--success);color:var(--success);background:#3fbf6f1f;border-radius:6px;padding:10px 12px;font-size:13px}.enrollment-card{flex-direction:column;align-items:flex-start;gap:10px;display:flex}.enrollment-code{background:var(--surface-2);border:1px solid var(--border);word-break:break-all;border-radius:6px;padding:10px 14px;font-size:13px}.auth-page{justify-content:center;align-items:center;min-height:100vh;display:flex}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;flex-direction:column;gap:14px;width:360px;padding:36px;display:flex}.auth-card h1{margin-bottom:0}.page-loading{color:var(--text-muted);padding:40px}