:root{
  --navy:#1f3864;
  --navy-dark:#152648;
  --blue:#2e75b6;
  --blue-light:#dce6f1;
  --green:#2e7d32;
  --green-light:#e6f4ea;
  --red:#c62828;
  --red-light:#fdecea;
  --yellow:#8a6d00;
  --yellow-light:#fff7d6;
  --gray-50:#f7f8fa;
  --gray-100:#eef1f5;
  --gray-300:#d5dbe3;
  --gray-500:#7c8798;
  --gray-700:#3c4658;
  --text:#1c2333;
  --radius:10px;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--gray-50);color:var(--text);}
a{color:var(--blue);text-decoration:none}
.layout{display:flex;min-height:100vh}

.sidebar{width:230px;background:var(--navy-dark);color:#fff;display:flex;flex-direction:column;flex-shrink:0}
.brand{display:flex;align-items:center;gap:10px;padding:22px 18px;border-bottom:1px solid rgba(255,255,255,.1)}
.brand-mark{background:var(--blue);color:#fff;font-weight:700;font-size:14px;width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center}
.brand-name{font-weight:700;font-size:16px;letter-spacing:.5px}
.brand-sub{font-size:11px;color:#aab6c9}
.sidebar nav{flex:1;padding:14px 10px;display:flex;flex-direction:column;gap:2px}
.nav-item{display:block;padding:10px 12px;border-radius:8px;color:#d7dee9;font-size:14px}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-item.active{background:var(--blue);color:#fff;font-weight:600}
.nav-item.disabled{color:#5a6a85;cursor:default}
.sidebar-footer{padding:14px 18px;border-top:1px solid rgba(255,255,255,.1)}
.user-name{font-size:13px;font-weight:600}
.user-role{font-size:11px;color:#aab6c9;margin-bottom:8px;text-transform:capitalize}
.logout{font-size:12px;color:#ffb4b4}

.content{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{background:#fff;border-bottom:1px solid var(--gray-300);padding:18px 28px}
.topbar h1{margin:0;font-size:20px}
.content-body{padding:24px 28px;flex:1}

.card{background:#fff;border:1px solid var(--gray-300);border-radius:var(--radius);padding:20px;margin-bottom:20px}
.card h2{margin-top:0;font-size:15px;color:var(--navy)}

.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:24px}
.kpi{background:#fff;border:1px solid var(--gray-300);border-radius:var(--radius);padding:18px}
.kpi .num{font-size:26px;font-weight:700;color:var(--navy)}
.kpi .label{font-size:12px;color:var(--gray-500);margin-top:4px}

table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{padding:9px 10px;border-bottom:1px solid var(--gray-100);text-align:left}
th{background:var(--blue-light);color:var(--navy);font-weight:600;position:sticky;top:0}
tr:hover td{background:#fafbfc}

.btn{display:inline-block;background:var(--blue);color:#fff;border:none;padding:9px 16px;border-radius:8px;font-size:13.5px;cursor:pointer}
.btn:hover{background:var(--navy)}
.btn.secondary{background:var(--gray-100);color:var(--text)}
.btn.secondary:hover{background:var(--gray-300)}

form.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
form.form-grid .full{grid-column:1/-1}
label{display:block;font-size:12.5px;color:var(--gray-700);margin-bottom:4px;font-weight:600}
input[type=text],input[type=date],input[type=number],input[type=email],input[type=password],select,textarea{
  width:100%;padding:9px 10px;border:1px solid var(--gray-300);border-radius:8px;font-size:13.5px;background:#fff;
}
textarea{min-height:60px}

.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:11.5px;font-weight:600}
.badge.green{background:var(--green-light);color:var(--green)}
.badge.yellow{background:var(--yellow-light);color:var(--yellow)}
.badge.red{background:var(--red-light);color:var(--red)}
.badge.gray{background:var(--gray-100);color:var(--gray-700)}

.flash{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:13.5px}
.flash.ok{background:var(--green-light);color:var(--green)}
.flash.error{background:var(--red-light);color:var(--red)}

.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:12px;flex-wrap:wrap}
.search-box{display:flex;gap:8px}
.search-box input{width:260px}

.pagination{display:flex;gap:6px;margin-top:16px}
.pagination a, .pagination span{padding:6px 11px;border-radius:6px;border:1px solid var(--gray-300);font-size:13px}
.pagination a:hover{background:var(--gray-100)}
.pagination .current{background:var(--navy);color:#fff;border-color:var(--navy)}

/* Login page */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--navy-dark),var(--navy))}
.login-card{background:#fff;padding:36px 34px;border-radius:14px;width:340px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.login-card .brand-mark{margin:0 auto 14px;background:var(--blue)}
.login-card h1{text-align:center;font-size:20px;margin:0 0 4px}
.login-card .sub{text-align:center;color:var(--gray-500);font-size:12.5px;margin-bottom:22px}
.login-card .btn{width:100%;margin-top:6px;padding:11px}
.login-card label{margin-top:12px}


.sidebar{position:sticky;top:0;align-self:flex-start;height:100vh;overflow-y:auto}

.nav-group{display:flex;flex-direction:column}
.nav-group-toggle{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:8px;color:#d7dee9;font-size:14px;cursor:pointer;user-select:none}
.nav-group-toggle:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-group-arrow{font-size:10px;color:#aab6c9;transition:transform .15s ease;display:inline-block}
.nav-group.open .nav-group-arrow{transform:rotate(90deg)}
.nav-group-items{display:flex;flex-direction:column;gap:2px;max-height:0;overflow:hidden;transition:max-height .2s ease}
.nav-group.open .nav-group-items{max-height:400px}
.nav-group-items .nav-item{padding-left:32px;font-size:13.5px}
table{width:100%;max-width:100%;font-size:11.5px;table-layout:auto}
th,td{padding:4px 6px;border-bottom:.8px solid var(--gray-100);white-space:nowrap}
th{font-size:11px}
.card:has(table){overflow-x:auto}