:root{--kq-blue:#0b5ed7;--kq-dark:#071b3a;--kq-red:#dc3545;--kq-soft:#f4f7fb}body{background:var(--kq-soft);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}.navbar-kq{background:linear-gradient(90deg,var(--kq-dark),var(--kq-blue))}.sidebar{min-height:calc(100vh - 56px);background:#fff;border-right:1px solid #e5e7eb}.sidebar a{display:block;padding:.7rem 1rem;color:#25324b;text-decoration:none;border-radius:.6rem;margin:.15rem .5rem}.sidebar a.active,.sidebar a:hover{background:#eaf2ff;color:#0b5ed7}.card-kq{border:0;border-radius:1rem;box-shadow:0 6px 22px rgba(10,30,70,.08)}.btn-kq{background:var(--kq-blue);border-color:var(--kq-blue);color:#fff}.btn-kq:hover{background:#084cb2;color:#fff}.table td,.table th{vertical-align:middle}.badge-soft{background:#eaf2ff;color:#0b5ed7}.form-control,.form-select{border-radius:.7rem}.login-wrap{min-height:100vh;background:linear-gradient(135deg,#071b3a,#0b5ed7)}.invoice-box{background:#fff;border-radius:1rem;padding:2rem;box-shadow:0 5px 25px rgba(0,0,0,.08)}@media(max-width:991px){.sidebar{min-height:auto}.sidebar a{display:inline-block}}