:root{--bg:#f4f6f9;--surface:#fff;--text:#1a2332;--muted:#5b6777;--border:#d8dee6;--primary:#0d6efd;--primary-dark:#163a60;--sidebar-bg:#212529;--accent:#c9a227;--danger:#b42318;--success:#1f7a4d;--radius:10px;--shadow:0 8px 24px rgba(26,35,50,.08);--sidebar-width:220px;--header-height:48px}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary);text-decoration:none}.text-primary{color:var(--primary)!important}.flex-shrink-0{flex-shrink:0}.me-1{margin-right:.25rem}.top-header{position:fixed;top:0;left:0;right:0;height:var(--header-height);background-color:var(--sidebar-bg);z-index:1050;display:flex;align-items:center;border-bottom:1px solid hsla(0,0%,100%,.1);box-shadow:0 2px 4px rgba(0,0,0,.2)}.top-header-mobile-toggle{display:none;align-items:center;justify-content:center;width:48px;height:48px;background:none;border:none;color:#fff;cursor:pointer;flex-shrink:0}.top-header-title{padding-left:calc(var(--sidebar-width) + 1.25rem);font-size:.95rem;font-weight:600;color:#fff;letter-spacing:.3px;white-space:nowrap;transition:padding-left .25s ease}.sidebar{position:fixed;top:var(--header-height);left:0;width:var(--sidebar-width);height:calc(100vh - var(--header-height));background-color:var(--sidebar-bg);display:flex;flex-direction:column;z-index:1040;overflow:hidden}.sidebar-brand{display:flex;align-items:center;padding:1.25rem 1rem 1rem 1.25rem;border-bottom:1px solid hsla(0,0%,100%,.1);font-size:1.1rem;font-weight:700;letter-spacing:.5px;color:#fff;white-space:nowrap;flex-shrink:0}.sidebar-brand-text{flex:1 1;margin-left:.5rem}.sidebar-toggle-tab{position:fixed;top:50%;transform:translateY(-50%);left:var(--sidebar-width);width:16px;height:48px;background-color:#2c3237;border:1px solid hsla(0,0%,100%,.12);border-left:none;border-radius:0 6px 6px 0;color:hsla(0,0%,100%,.6);cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:1041;box-shadow:2px 0 6px rgba(0,0,0,.25);transition:left .25s ease,color .15s,background-color .15s;padding:0}.sidebar-toggle-tab:hover{color:#fff;background-color:#343a40}.sidebar-toggle-tab i{font-size:.6rem;transition:transform .25s ease}.sidebar-nav{flex:1 1;padding:.75rem 0;overflow-x:hidden;overflow-y:auto}.sidebar-link,.sidebar-sublink{display:flex;align-items:center;gap:.65rem;color:hsla(0,0%,100%,.72);text-decoration:none;font-size:.9rem;transition:background .15s,color .15s;white-space:nowrap;border:none;background:none;width:100%;text-align:left;cursor:pointer}.sidebar-link{padding:.6rem 1.25rem}.sidebar-sublink{padding:.5rem 1.25rem .5rem 2.5rem;font-size:.82rem;border-left:2px solid hsla(0,0%,100%,.2);margin-left:1.25rem}.sidebar-link:hover,.sidebar-logout:hover,.sidebar-sublink:hover{background-color:hsla(0,0%,100%,.08);color:#fff}.sidebar-link.active{border-left:3px solid #fff;padding-left:calc(1.25rem - 3px)}.sidebar-link.active,.sidebar-sublink.active{background-color:hsla(0,0%,100%,.12);color:#fff;font-weight:600}.sidebar-link i,.sidebar-sublink i{font-size:1rem;width:1.25rem;text-align:center;flex-shrink:0}.sidebar-sublink i{font-size:.9rem;width:1.1rem}.sidebar-footer{padding:1rem 1.25rem;border-top:1px solid hsla(0,0%,100%,.1);flex-shrink:0}.sidebar-footer,.sidebar-username{white-space:nowrap;overflow:hidden}.sidebar-username{font-size:.8rem;color:hsla(0,0%,100%,.5);margin-bottom:.5rem;text-overflow:ellipsis}.sidebar-logout{display:flex;align-items:center;gap:.5rem;color:hsla(0,0%,100%,.7);font-size:.875rem;padding:0}.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:1039}.main-content{margin-left:var(--sidebar-width);padding-top:var(--header-height);min-height:100vh;transition:margin-left .25s ease}.main-inner{padding:1.5rem 1.75rem;max-width:1400px}.login-main{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(180deg,#eef2f6,#f8fafc)}@media (min-width:992px){.sidebar{transition:width .25s ease}body.sidebar-collapsed .sidebar{width:60px}body.sidebar-collapsed .main-content{margin-left:60px}body.sidebar-collapsed .top-header-title{padding-left:calc(60px + 1.25rem)}body.sidebar-collapsed .sidebar-toggle-tab{left:60px}body.sidebar-collapsed .sidebar-toggle-tab i{transform:rotate(180deg)}body.sidebar-collapsed .sidebar-brand{justify-content:center;padding-left:0;padding-right:0}body.sidebar-collapsed .sidebar-brand-text,body.sidebar-collapsed .sidebar-link span,body.sidebar-collapsed .sidebar-logout span,body.sidebar-collapsed .sidebar-sublink span,body.sidebar-collapsed .sidebar-username{display:none}body.sidebar-collapsed .sidebar-link,body.sidebar-collapsed .sidebar-sublink{justify-content:center;padding-left:0;padding-right:0;gap:0;margin-left:0;border-left:none}body.sidebar-collapsed .sidebar-footer{padding:.75rem 0;display:flex;flex-direction:column;align-items:center;gap:.5rem}body.sidebar-collapsed .sidebar-logout{justify-content:center;gap:0}}@media (max-width:991.98px){.sidebar{transform:translateX(calc(-1 * var(--sidebar-width)));transition:transform .25s ease}.sidebar.open{transform:translateX(0);box-shadow:4px 0 24px rgba(0,0,0,.4)}.sidebar-overlay.show{display:block}.top-header-mobile-toggle{display:flex}.top-header-title{padding-left:.5rem}.sidebar-toggle-tab{display:none}.main-content{margin-left:0}}@media (max-width:576px){.main-inner{padding-left:.75rem;padding-right:.75rem}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.grid{display:grid;grid-gap:16px;gap:16px}.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}label{display:block;font-size:.9rem;color:var(--muted);margin-bottom:6px}button,input,select,textarea{font:inherit}input,select,textarea{width:100%;border:1px solid var(--border);border-radius:8px;padding:10px 12px;background:#fff}textarea{min-height:110px;resize:vertical}.button,button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:8px;padding:10px 16px;background:var(--primary);color:#fff;cursor:pointer}.button.secondary,button.secondary{background:#e8edf3;color:var(--text)}button.danger{background:var(--danger)}button:disabled{opacity:.6;cursor:not-allowed}.table{width:100%;border-collapse:collapse}.table td,.table th{border-bottom:1px solid var(--border);padding:10px 8px;text-align:left;vertical-align:top}.badge{display:inline-block;padding:4px 8px;border-radius:999px;font-size:.8rem;background:#e8edf3}.badge.open{background:#e6f4ec;color:var(--success)}.badge.closed{background:#fdecec;color:var(--danger)}.muted{color:var(--muted)}.error{color:var(--danger);margin:8px 0}.success{color:var(--success);margin:8px 0}.stack{flex-direction:column}.row,.stack{display:flex;gap:12px}.row{flex-wrap:wrap;align-items:center}.section-title{margin:0 0 12px}.modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.55);display:grid;place-items:center;padding:24px;z-index:1100}.modal-card{width:100%;max-width:520px;max-height:calc(100vh - 48px);overflow-y:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.modal-close{min-width:40px;padding:8px 12px}