:root{
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --bg:#f1f5f9;
  --sidebar-bg:#0f172a;
  --sidebar-hover:#1e293b;
  --sidebar-active:#2563eb;
  --card-bg:#ffffff;
  --border:#e2e8f0;
  --text:#1e293b;
  --text-muted:#64748b;
  --success:#16a34a;
  --warning:#d97706;
  --danger:#dc2626;
  --radius:8px;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:"Segoe UI", Arial, sans-serif;
  background:var(--bg);
  color:var(--text);
}
.layout{
  display:flex;
  min-height:100vh;
}
.sidebar{
  width:230px;
  background:var(--sidebar-bg);
  color:#fff;
  flex-shrink:0;
  padding:16px 0;
}
.sidebar .brand{
  font-size:15px;
  font-weight:700;
  line-height:1.35;
  padding:0 16px 18px 16px;
  border-bottom:1px solid #1e293b;
  margin-bottom:10px;
}
.sidebar .brand span{display:block;color:#60a5fa;font-size:11px;font-weight:600;letter-spacing:.04em;margin-top:2px;}
.sidebar .brand-with-logo{text-align:center;padding-bottom:14px;}
.sidebar-logo{width:52px;height:52px;border-radius:50%;object-fit:cover;display:block;margin:0 auto 8px;border:2px solid #334155;background:#fff;}
.brand-title{display:block;font-size:12px;font-weight:600;color:#e2e8f0;line-height:1.3;}
.login-logo-circle{width:96px;height:96px;margin:0 auto 16px;border-radius:50%;overflow:hidden;border:3px solid var(--border);background:#fff;display:flex;align-items:center;justify-content:center;}
.login-logo-circle img{width:100%;height:100%;object-fit:cover;}
.login-card .logo{font-size:22px;line-height:1.3;text-align:center;font-weight:700;}
.login-card .logo span{display:block;font-size:12px;color:#60a5fa;letter-spacing:.06em;margin-top:4px;}
.sidebar a{
  display:block;
  color:#cbd5e1;
  text-decoration:none;
  padding:10px 20px;
  font-size:14px;
}
.sidebar a:hover{background:var(--sidebar-hover); color:#fff;}
.sidebar a.active{background:var(--sidebar-active); color:#fff; font-weight:600; border-left:3px solid #fff;}
.sidebar .section-label{
  padding:14px 20px 4px 20px;
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.05em;
  color:#64748b;
}
.main{
  flex:1;
  min-width:0;
  display:flex;
  flex-direction:column;
}
.topbar{
  background:#fff;
  border-bottom:1px solid var(--border);
  padding:14px 24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.topbar-left{display:flex;align-items:center;gap:10px;}
.topbar-logo{border-radius:50%;object-fit:cover;border:1px solid var(--border);}
.topbar h1{font-size:18px; margin:0;}
.topbar .user{display:flex; align-items:center; gap:10px; font-size:14px; color:var(--text-muted);}
.avatar{
  width:34px;height:34px;border-radius:50%;
  background:var(--primary);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:13px;
}
.content{
  padding:24px;
  flex:1;
  min-width:0;
}
.card{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px;
  margin-bottom:20px;
}
.card h2{font-size:15px; margin:0 0 14px 0;}
.toolbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:14px;
  gap:10px;
  flex-wrap:wrap;
}
.toolbar .filters{display:flex; gap:8px; flex-wrap:wrap;}
input, select{
  padding:8px 10px;
  border:1px solid var(--border);
  border-radius:6px;
  font-size:13px;
  background:#fff;
}
.btn{
  display:inline-block;
  padding:8px 16px;
  border-radius:6px;
  border:none;
  font-size:13px;
  font-weight:600;
  cursor:pointer;
}
.btn-primary{background:var(--primary); color:#fff;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-outline{background:#fff; border:1px solid var(--border); color:var(--text);}
.btn-secondary{background:#e2e8f0; color:var(--text);}
.btn-sm{padding:5px 10px; font-size:12px;}
table{
  width:100%;
  border-collapse:collapse;
  font-size:13px;
}
th, td{
  text-align:left;
  padding:10px 12px;
  border-bottom:1px solid var(--border);
}
th{
  background:#f8fafc;
  font-weight:600;
  color:var(--text-muted);
  text-transform:uppercase;
  font-size:11px;
  letter-spacing:.03em;
}
tr:hover td{background:#f8fafc;}
.badge{
  padding:3px 10px;
  border-radius:999px;
  font-size:11px;
  font-weight:600;
}
.badge-success{background:#dcfce7; color:var(--success);}
.badge-warning{background:#fef3c7; color:var(--warning);}
.badge-danger{background:#fee2e2; color:var(--danger);}
.badge-muted{background:#e2e8f0; color:var(--text-muted);}
.grid-cards{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-bottom:20px;
}
.grid-cards.cols-3{grid-template-columns:repeat(3,1fr);}
.grid-cards.cols-4{grid-template-columns:repeat(4,1fr);}
.stat-card{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
}
.stat-card .label{font-size:12px; color:var(--text-muted); margin-bottom:6px;}
.stat-card .value{font-size:24px; font-weight:700;}
.stat-card .sub{font-size:12px; color:var(--success); margin-top:4px;}
.two-col{
  display:grid;
  grid-template-columns:1.6fr 1fr;
  gap:20px;
}
.pagination{
  display:flex;
  justify-content:flex-end;
  gap:6px;
  margin-top:14px;
  font-size:13px;
}
.pagination span, .pagination a{
  padding:6px 10px;
  border:1px solid var(--border);
  border-radius:6px;
  color:var(--text-muted);
  text-decoration:none;
}
.pagination .active{background:var(--primary); color:#fff; border-color:var(--primary);}
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px 20px;
}
.form-group{display:flex; flex-direction:column; gap:6px;}
.form-group label{font-size:13px; font-weight:600; color:var(--text);}
.form-group.full{grid-column:1 / -1;}
.modal-overlay{
  position:fixed; inset:0;
  background:rgba(15,23,42,.45);
  display:flex; align-items:center; justify-content:center;
  z-index:50;
}
.modal{
  background:#fff;
  border-radius:var(--radius);
  width:520px;
  max-width:92vw;
  padding:20px;
}
.modal h3{margin:0 0 16px 0; font-size:16px;}
.modal .modal-actions{
  display:flex; justify-content:flex-end; gap:10px; margin-top:18px;
}
.login-wrapper{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,#1d4ed8,#0f172a);
}
.login-card{
  background:#fff;
  width:380px;
  padding:36px 32px;
  border-radius:12px;
  box-shadow:0 20px 50px rgba(0,0,0,.25);
}
.login-card .logo{
  text-align:center;
  font-size:22px;
  font-weight:800;
  color:var(--primary);
  margin-bottom:4px;
}
.login-card .logo span{color:var(--text);}
.login-card .subtitle{text-align:center; color:var(--text-muted); font-size:13px; margin-bottom:24px;}
.login-card .btn-primary{width:100%; padding:11px; margin-top:8px; font-size:14px;}
.login-card .meta-row{
  display:flex; justify-content:space-between; align-items:center;
  font-size:12px; margin:10px 0 0 0;
}
.login-card .meta-row a{color:var(--primary); text-decoration:none;}
.breadcrumb{font-size:12px; color:var(--text-muted); margin-bottom:6px;}
.tabs{display:flex; gap:4px; border-bottom:1px solid var(--border); margin-bottom:16px;}
.tabs a{
  padding:10px 16px; font-size:13px; text-decoration:none; color:var(--text-muted);
  border-bottom:2px solid transparent;
}
.tabs a.active{color:var(--primary); border-bottom-color:var(--primary); font-weight:600;}
.tabs button{
  background:none; border:none; border-bottom:2px solid transparent;
  padding:10px 16px; font-size:13px; color:var(--text-muted); cursor:pointer;
  font-family:inherit;
}
.tabs button.active{color:var(--primary); border-bottom-color:var(--primary); font-weight:600;}
.page-tabs{
  display:inline-flex; gap:0; padding:4px; margin-bottom:16px;
  background:#f1f5f9; border-radius:10px; border:1px solid var(--border);
}
.page-tabs button{
  background:transparent; border:none; border-radius:8px;
  padding:8px 18px; font-size:13px; font-weight:500; color:var(--text-muted);
  cursor:pointer; font-family:inherit;
}
.page-tabs button.active{
  background:#fff; color:var(--primary); box-shadow:0 1px 3px rgba(15,23,42,.08);
}
.filter-chips{display:flex; flex-wrap:wrap; gap:8px; margin-bottom:16px;}
.filter-chips button{
  background:#fff; border:1px solid var(--border); border-radius:999px;
  padding:6px 14px; font-size:12px; color:var(--text-muted); cursor:pointer;
  font-family:inherit;
}
.filter-chips button.active{
  border-color:var(--primary); color:var(--primary); background:rgba(37,99,235,.06);
}
.footer-note{
  text-align:center; font-size:12px; color:var(--text-muted); padding:14px;
}

/* ===== Responsive / Mobile ===== */
.hamburger{
  display:none;
  background:none;
  border:none;
  font-size:22px;
  line-height:1;
  cursor:pointer;
  color:var(--text);
  padding:4px;
}
.topbar-left{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
}
.topbar-left h1{
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.sidebar-overlay{
  display:none;
}

@media (max-width: 1024px){
  .grid-cards, .grid-cards.cols-3, .grid-cards.cols-4{grid-template-columns:repeat(2,1fr);}
}

@media (max-width: 900px){
  .sidebar{
    position:fixed;
    top:0; left:0; bottom:0;
    transform:translateX(-100%);
    transition:transform .25s ease;
    z-index:110;
    overflow-y:auto;
    box-shadow:2px 0 16px rgba(0,0,0,.25);
  }
  .sidebar.open{transform:translateX(0);}
  .hamburger{display:inline-flex; align-items:center; justify-content:center;}
  .sidebar-overlay{
    display:none;
    position:fixed; inset:0;
    background:rgba(15,23,42,.45);
    z-index:100;
  }
  .sidebar-overlay.show{display:block;}
  .content{padding:16px;}
  .topbar{padding:12px 16px;}
  .two-col{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .toolbar{flex-direction:column; align-items:stretch;}
  .toolbar .filters{flex-direction:column; width:100%;}
  .toolbar .filters input, .toolbar .filters select{width:100%;}
  .toolbar > .btn, .toolbar > button{width:100%;}
  .card{overflow-x:auto; padding:14px;}
  .card table{min-width:640px;}
  .modal{width:92vw;}
  .pagination{justify-content:center; flex-wrap:wrap;}
}

@media (max-width: 560px){
  .grid-cards, .grid-cards.cols-3, .grid-cards.cols-4{grid-template-columns:1fr;}
  .stat-card .value{font-size:20px;}
  .topbar .user span{display:none;}
  .login-card{width:90vw; padding:28px 20px;}
  .tabs{overflow-x:auto; white-space:nowrap;}
  .tabs a{padding:10px 12px; flex-shrink:0;}
}

.legal-page{
  max-width:720px;
  margin:0 auto;
  padding:32px 20px 48px;
}
.legal-page h1{font-size:26px;margin:0 0 8px;}
.legal-page .legal-meta{color:var(--text-muted);font-size:13px;margin-bottom:28px;}
.legal-page h2{font-size:17px;margin:28px 0 10px;}
.legal-page p,.legal-page li{font-size:15px;line-height:1.6;color:var(--text);}
.legal-page ul{padding-left:1.25rem;margin:0 0 12px;}
.legal-page a{color:var(--primary);}
.legal-page .legal-back{display:inline-block;margin-bottom:20px;font-size:14px;}
.legal-footer-links{text-align:center;margin-top:16px;font-size:12px;color:#94a3b8;}
.legal-footer-links a{color:#64748b;margin:0 8px;}

.global-loading-overlay{
  position:fixed; inset:0; z-index:9999;
  background:rgba(15,23,42,.35);
  display:flex; align-items:center; justify-content:center;
}
.global-loading-spinner{
  background:#fff; padding:20px 28px; border-radius:12px;
  box-shadow:0 8px 32px rgba(0,0,0,.15); text-align:center;
}
.global-loading-spinner span{
  display:inline-block; width:36px; height:36px;
  border:3px solid #e2e8f0; border-top-color:#2563eb;
  border-radius:50%; animation:kost-spin .8s linear infinite;
}
.global-loading-spinner p{margin:10px 0 0;font-size:14px;color:#64748b;}
@keyframes kost-spin{to{transform:rotate(360deg);}}

th.sortable-th{cursor:pointer; user-select:none; white-space:nowrap;}
th.sortable-th.sort-asc::after{content:' ▲'; font-size:10px; color:#2563eb;}
th.sortable-th.sort-desc::after{content:' ▼'; font-size:10px; color:#2563eb;}