:root{--navy: #0f2a4a;--navy-dark: #0a1e36;--accent: #2563eb;--bg: #f4f6f9;--card: #ffffff;--border: #e2e6ec;--text: #1c2733;--muted: #6b7789;--danger: #dc2626;--success: #16a34a}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}.auth-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:380px;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:32px;box-shadow:0 4px 24px #0f2a4a14}.auth-card h1{font-size:20px;margin:0 0 4px;color:var(--navy)}.auth-card p.sub{margin:0 0 24px;color:var(--muted);font-size:14px}label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--text)}input,select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;margin-bottom:16px;background:#fff;color:var(--text)}input:focus,select:focus{outline:none;border-color:var(--accent)}button{cursor:pointer;font-family:inherit}.btn-primary{width:100%;background:var(--navy);color:#fff;border:none;border-radius:8px;padding:11px;font-size:14px;font-weight:600}.btn-primary:hover{background:var(--navy-dark)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:#fff;border:1px solid var(--border);color:var(--text);border-radius:8px;padding:8px 14px;font-size:13px;font-weight:600}.btn-danger{background:#fff;border:1px solid var(--danger);color:var(--danger);border-radius:8px;padding:6px 12px;font-size:12px;font-weight:600}.error-box{background:#fef2f2;border:1px solid #fecaca;color:var(--danger);padding:10px 12px;border-radius:8px;font-size:13px;margin-bottom:16px}.info-box{background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af;padding:10px 12px;border-radius:8px;font-size:13px;margin-bottom:16px}.qr-wrap{text-align:center;margin-bottom:16px}.qr-wrap img{width:180px;height:180px;border:1px solid var(--border);border-radius:8px}.manual-key{font-family:monospace;font-size:12px;background:var(--bg);padding:8px;border-radius:6px;word-break:break-all;margin-bottom:16px;color:var(--muted)}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--navy);color:#fff;padding:20px 0;flex-shrink:0}.sidebar .brand{font-weight:700;font-size:15px;padding:0 20px 20px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:12px}.sidebar a,.sidebar button.navlink{display:block;width:100%;text-align:left;padding:10px 20px;color:#fffc;text-decoration:none;font-size:14px;border:none;background:none;cursor:pointer}.sidebar a.active,.sidebar a:hover,.sidebar button.navlink:hover{background:#ffffff1a;color:#fff}.sidebar .user-box{margin-top:auto;padding:16px 20px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#ffffffa6}.main{flex:1;padding:32px 40px;max-width:1100px}.main h2{margin-top:0;color:var(--navy)}.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}table.data-table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--border);border-radius:10px;overflow:hidden;font-size:13px}table.data-table th,table.data-table td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--border)}table.data-table th{background:var(--bg);font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.03em}table.data-table tr:last-child td{border-bottom:none}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600}.badge.on{background:#dcfce7;color:var(--success)}.badge.off{background:#fee2e2;color:var(--danger)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f2a4a66;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:#fff;border-radius:12px;padding:28px;width:100%;max-width:420px;max-height:90vh;overflow-y:auto}.modal h3{margin-top:0;color:var(--navy)}.checkbox-row{display:flex;align-items:center;gap:8px;margin-bottom:10px;font-size:13px;font-weight:400}.checkbox-row input{width:auto;margin:0}.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}.temp-pass-box{background:#fffbeb;border:1px solid #fde68a;color:#92400e;padding:12px;border-radius:8px;font-size:13px;margin-bottom:16px}.temp-pass-box code{background:#fff;padding:2px 6px;border-radius:4px;font-weight:700}.loading-center{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--muted)}