:root{
  --brand:#2563eb;
  --brand-600:#1d4ed8;
  --brand-700:#1e40af;
  --navy-900:#081c33;
  --navy-800:#0b2545;
  --navy-700:#123a63;
  --ink:#1e293b;
  --muted:#64748b;
  --line:#e2e8f0;
  --bg:#f1f5f9;
  --surface:#ffffff;
  --success:#16a34a;
  --danger:#dc2626;
  --warning:#f59e0b;
  --info:#0ea5e9;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06),0 1px 3px rgba(15,23,42,.08);
  --shadow-md:0 6px 18px rgba(15,23,42,.08);
  --shadow-lg:0 18px 40px rgba(15,23,42,.14);
  --sidebar-w:264px;
}

*{box-sizing:border-box}
html,body{height:100%}
body.app-body{
  margin:0;
  font-family:"Inter","Segoe UI",Roboto,-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:999px;border:2px solid var(--bg)}
::-webkit-scrollbar-thumb:hover{background:#94a3b8}

a{color:var(--brand-600)}
a:hover{color:var(--brand-700);text-decoration:none}

/* ============ Layout shell ============ */
.app-shell{display:flex;min-height:100vh;width:100%}

.app-sidebar{
  width:var(--sidebar-w);
  flex:0 0 var(--sidebar-w);
  background:linear-gradient(180deg,var(--navy-800) 0%,var(--navy-900) 100%);
  color:#cbd5e1;
  display:flex;
  flex-direction:column;
  position:fixed;
  inset:0 auto 0 0;
  z-index:1040;
  box-shadow:2px 0 12px rgba(2,6,23,.18);
}
.app-sidebar .sidebar-brand{
  display:flex;align-items:center;gap:.7rem;
  padding:1.1rem 1.25rem;
  border-bottom:1px solid rgba(255,255,255,.08);
  color:#fff;font-weight:700;letter-spacing:.2px;font-size:1rem;
  min-height:66px;
}
.app-sidebar .sidebar-brand .brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 36px;
  background:linear-gradient(135deg,var(--brand) 0%,#60a5fa 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;
  box-shadow:0 4px 12px rgba(37,99,235,.45);
}
.app-sidebar .sidebar-brand span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.app-sidebar .sidebar-nav{padding:.85rem .75rem;overflow-y:auto;flex:1}
.app-sidebar .sidebar-nav .nav-section{
  font-size:.68rem;text-transform:uppercase;letter-spacing:.12em;
  color:#7d93ad;padding:1rem .75rem .4rem;font-weight:700;
}
.app-sidebar .nav-link{
  color:#c7d4e4;border-radius:var(--radius-sm);
  padding:.62rem .8rem;margin-bottom:2px;display:flex;align-items:center;gap:.7rem;
  font-size:.9rem;font-weight:500;transition:background .15s,color .15s;
}
.app-sidebar .nav-link i{width:18px;text-align:center;opacity:.9}
.app-sidebar .nav-link:hover{background:rgba(255,255,255,.08);color:#fff}
.app-sidebar .nav-link.active{background:linear-gradient(90deg,var(--brand) 0%,var(--brand-600) 100%);color:#fff;box-shadow:0 6px 16px rgba(37,99,235,.35)}
.app-sidebar .nav-link .caret{margin-left:auto;transition:transform .2s;font-size:.7rem}
.app-sidebar .nav-link[aria-expanded="true"] .caret{transform:rotate(90deg)}
.app-sidebar .submenu{padding-left:.6rem}
.app-sidebar .submenu .nav-link{padding-left:2.35rem;font-size:.85rem}
.app-sidebar .submenu .nav-link::before{content:"";width:5px;height:5px;border-radius:50%;background:#4b6a8c;margin-right:.1rem}
.app-sidebar .sidebar-foot{padding:.9rem 1rem;border-top:1px solid rgba(255,255,255,.08);font-size:.72rem;color:#7d93ad}

.app-main{
  margin-left:var(--sidebar-w);
  flex:1 1 auto;min-width:0;display:flex;flex-direction:column;min-height:100vh;
}
.app-topbar{
  height:66px;background:rgba(255,255,255,.85);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:1030;
  display:flex;align-items:center;gap:1rem;padding:0 1.5rem;
}
.app-topbar .topbar-title{font-weight:600;color:var(--ink);font-size:1rem;margin:0}
.app-topbar .topbar-title small{display:block;font-weight:400;color:var(--muted);font-size:.75rem}
.app-topbar .topbar-toggle{display:none;border:0;background:#eef2f7;color:var(--navy-800);width:40px;height:40px;border-radius:10px}
.app-topbar .spacer{flex:1}
.app-topbar .topbar-user{
  display:flex;align-items:center;gap:.65rem;padding:.3rem .6rem .3rem .3rem;border-radius:999px;
  color:var(--ink);font-weight:600;font-size:.9rem;
}
.app-topbar .topbar-user:hover{background:#eef2f7}
.app-topbar .avatar{
  width:38px;height:38px;border-radius:50%;color:#fff;font-weight:700;font-size:.85rem;
  background:linear-gradient(135deg,var(--navy-700),var(--brand));
  display:flex;align-items:center;justify-content:center;
}
.app-content{padding:1.5rem;flex:1 1 auto;width:100%}
.app-footer{padding:1rem 1.5rem;color:var(--muted);font-size:.8rem;border-top:1px solid var(--line);background:var(--surface)}

.sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(2,6,23,.5);z-index:1035}

@media (max-width:991.98px){
  .app-sidebar{transform:translateX(-100%);transition:transform .25s ease}
  body.nav-open .app-sidebar{transform:translateX(0)}
  body.nav-open .sidebar-backdrop{display:block}
  .app-main{margin-left:0}
  .app-topbar .topbar-toggle{display:inline-flex;align-items:center;justify-content:center}
}

/* ============ Typography / headings ============ */
h1,h2,h3,h4,h5,h6{color:var(--ink);font-weight:700}
.page-title{font-size:1.35rem;font-weight:700;margin:0 0 1rem;display:flex;align-items:center;gap:.6rem}
.page-title i{color:var(--brand)}
.text-muted{color:var(--muted)!important}

/* ============ Cards ============ */
.card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  background:var(--surface);
}
.card-header{
  background:var(--surface);border-bottom:1px solid var(--line);
  font-weight:600;padding:1rem 1.25rem;border-radius:var(--radius) var(--radius) 0 0!important;
}
.card-body{padding:1.25rem}
.card-footer{background:#f8fafc;border-top:1px solid var(--line)}

.stat-card{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);
  padding:1.15rem 1.25rem;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;height:100%;
  transition:transform .18s ease,box-shadow .18s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.stat-card .stat-icon{
  width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:1.15rem;color:#fff;margin-bottom:.85rem;background:var(--brand);
}
.stat-card .stat-value{font-size:1.6rem;font-weight:800;color:var(--ink);line-height:1.15}
.stat-card .stat-label{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.stat-card.accent-gold{border-top:4px solid #eab308}
.stat-card.accent-gold .stat-icon{background:linear-gradient(135deg,#f59e0b,#fbbf24)}
.stat-card.accent-blue{border-top:4px solid var(--brand)}
.stat-card.accent-blue .stat-icon{background:linear-gradient(135deg,var(--brand),#60a5fa)}
.stat-card.accent-green{border-top:4px solid var(--success)}
.stat-card.accent-green .stat-icon{background:linear-gradient(135deg,#16a34a,#4ade80)}
.stat-card.accent-navy{border-top:4px solid var(--navy-800)}
.stat-card.accent-navy .stat-icon{background:linear-gradient(135deg,var(--navy-800),var(--navy-700))}
.stat-card.accent-red{border-top:4px solid var(--danger)}
.stat-card.accent-red .stat-icon{background:linear-gradient(135deg,#dc2626,#f87171)}

/* ============ Buttons ============ */
.btn{border-radius:10px;font-weight:600;font-size:.875rem;padding:.5rem .95rem;transition:all .15s ease}
.btn:focus,.btn:active{box-shadow:0 0 0 .2rem rgba(37,99,235,.25)}
.btn-primary{background:var(--brand);border-color:var(--brand)}
.btn-primary:hover,.btn-primary:focus{background:var(--brand-600);border-color:var(--brand-600)}
.btn-success{background:var(--success);border-color:var(--success)}
.btn-danger{background:var(--danger);border-color:var(--danger)}
.btn-info{background:var(--info);border-color:var(--info);color:#fff}
.btn-info:hover{background:#0284c7;border-color:#0284c7;color:#fff}
.btn-warning{background:var(--warning);border-color:var(--warning);color:#3b2f04}
.btn-dark{background:var(--navy-800);border-color:var(--navy-800)}
.btn-outline-primary{color:var(--brand-600);border-color:var(--brand)}
.btn-outline-primary:hover{background:var(--brand);border-color:var(--brand)}
.btn-lg{padding:.7rem 1.3rem;font-size:1rem}
.btn-sm{padding:.32rem .6rem;font-size:.78rem;border-radius:8px}

/* ============ Forms ============ */
.form-control,.custom-select,.chosen-container-single .chosen-single{
  border-radius:10px;border:1px solid var(--line);height:auto;
  padding:.6rem .85rem;font-size:.9rem;color:var(--ink);background:#fff;
}
.form-control:focus{
  border-color:var(--brand);box-shadow:0 0 0 .2rem rgba(37,99,235,.15);background:#fff;
}
label{font-weight:600;font-size:.82rem;color:#334155;margin-bottom:.3rem}
.input-group-text{border-radius:10px;border-color:var(--line);background:#f8fafc}
.is-invalid{border-color:var(--danger)!important}
.invalid-feedback{font-size:.78rem}

/* ============ Tables / DataTables ============ */
.table{background:var(--surface);border-radius:var(--radius);overflow:hidden}
.table thead th{background:var(--navy-800);color:#fff;border:0;font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;font-weight:700;vertical-align:middle}
.table td,.table th{vertical-align:middle;border-color:var(--line);padding:.7rem .75rem}
.table-hover tbody tr:hover{background:#f1f5ff}
.table-striped tbody tr:nth-of-type(odd){background:#f8fafc}

div.dataTables_wrapper div.dataTables_filter input,
div.dataTables_wrapper div.dataTables_length select{
  border-radius:10px;border:1px solid var(--line);padding:.35rem .6rem;
}
div.dataTables_wrapper div.dataTables_filter input:focus{border-color:var(--brand);outline:0}
div.dataTables_wrapper div.dataTables_info{color:var(--muted);font-size:.82rem}
.page-link{color:var(--brand-600);border-color:var(--line)}
.page-item.active .page-link{background:var(--brand);border-color:var(--brand)}
table.dataTable thead .sorting:after,
table.dataTable thead .sorting_asc:after,
table.dataTable thead .sorting_desc:after{opacity:.6}

/* ============ Badges / alerts / modals ============ */
.badge{border-radius:999px;font-weight:600;padding:.35em .7em}
.alert{border:0;border-radius:var(--radius-sm);box-shadow:var(--shadow-sm)}
.alert-danger{background:#fef2f2;color:#991b1b}
.alert-success{background:#f0fdf4;color:#166534}
.modal-content{border:0;border-radius:var(--radius);box-shadow:var(--shadow-lg);overflow:hidden}
.modal-header{background:var(--surface);border-bottom:1px solid var(--line);padding:1.1rem 1.35rem}
.modal-title{font-weight:700}
.modal-footer{border-top:1px solid var(--line);background:#f8fafc}
.close{color:var(--muted);opacity:.7;text-shadow:none}

/* ============ Auth / login ============ */
.auth-wrap{min-height:100vh;display:flex;background:var(--bg)}
.auth-aside{
  flex:1 1 50%;position:relative;color:#fff;padding:3rem;
  background:
    radial-gradient(circle at 15% 20%,rgba(96,165,250,.35),transparent 45%),
    radial-gradient(circle at 85% 80%,rgba(37,99,235,.35),transparent 45%),
    linear-gradient(155deg,var(--navy-700) 0%,var(--navy-900) 100%);
  display:flex;flex-direction:column;justify-content:space-between;
}
.auth-aside .auth-logo{display:flex;align-items:center;gap:.75rem;font-weight:700;font-size:1.05rem}
.auth-aside .auth-logo .brand-mark{
  width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--brand),#60a5fa);
  display:flex;align-items:center;justify-content:center;font-weight:800;box-shadow:0 8px 20px rgba(37,99,235,.5);
}
.auth-aside h2{color:#fff;font-size:1.9rem;font-weight:800;line-height:1.25;margin:0 0 .75rem}
.auth-aside p{color:#bcd0e6;max-width:26rem}
.auth-aside .auth-points{list-style:none;padding:0;margin:1.5rem 0 0}
.auth-aside .auth-points li{display:flex;align-items:center;gap:.6rem;color:#dbe7f3;margin-bottom:.6rem;font-size:.92rem}
.auth-aside .auth-points i{color:#7dd3fc}
.auth-main{flex:1 1 50%;display:flex;align-items:center;justify-content:center;padding:2.5rem 1.5rem}
.auth-card{width:100%;max-width:420px;background:var(--surface);border-radius:20px;box-shadow:var(--shadow-lg);padding:2.25rem}
.auth-card h1{font-size:1.5rem;font-weight:800;margin:0 0 .25rem}
.auth-card .auth-sub{color:var(--muted);font-size:.9rem;margin-bottom:1.5rem}
.auth-card .form-control{height:48px}
.auth-card .btn{height:48px;width:100%;font-weight:700}
.auth-card .auth-foot{text-align:center;margin-top:1.25rem;font-size:.85rem;color:var(--muted)}
.auth-card .auth-foot a{font-weight:600}
.auth-logo-mobile{display:none}
@media (max-width:860px){
  .auth-aside{display:none}
  .auth-logo-mobile{display:flex;align-items:center;gap:.6rem;justify-content:center;margin-bottom:1.25rem;font-weight:700;color:var(--navy-800)}
  .auth-logo-mobile .brand-mark{width:40px;height:40px;border-radius:11px;background:linear-gradient(135deg,var(--brand),#60a5fa);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
}

/* ============ Misc ============ */
.dropdown-menu{border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-md);padding:.4rem}
.dropdown-item{border-radius:8px;font-size:.88rem;padding:.5rem .65rem}
.dropdown-item:hover{background:#eef2ff;color:var(--brand-700)}
.separator{height:1px;background:var(--line);margin:1rem 0}
.chosen-container .chosen-results li.highlighted{background:var(--brand);color:#fff}
.chosen-container-single .chosen-single div b{background-position:0 8px}

/* Auth full-bleed inside the shared container wrapper */
body.auth-body > .container-fluid{padding-left:0;padding-right:0}
body.auth-body .auth-wrap{min-height:100vh}