:root {
  --sidebar-bg: #ffffff;
  --sidebar-border: #e9ecf2;
  --brand-blue: #2fa4e7;
  --brand-blue-dark: #1c7fb8;
  --text-dark: #1f2430;
  --text-muted: #6b7280;
  --page-bg: #f3f5f9;
  --radius: 12px;
}

* { font-family: 'Inter', -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }

body {
  background: var(--page-bg);
  color: var(--text-dark);
  font-size: 14.5px;
  -webkit-font-smoothing: antialiased;
}

h5, h6 { font-weight: 700; letter-spacing: -.01em; }

a { color: var(--brand-blue); }

/* ---- Login ---- */
.login-body {
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,.08), transparent 40%),
    linear-gradient(135deg, var(--brand-blue), var(--brand-blue-dark) 65%, #143d55);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-wrap { width: 100%; max-width: 400px; padding: 16px; }
.login-card { border: none; border-radius: 18px; box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.login-logo {
  width: 60px; height: 60px; border-radius: 14px; background: var(--brand-blue);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 22px; margin: 0 auto;
}
.login-logo-img { height: 60px; max-width: 160px; object-fit: contain; margin: 0 auto; display: block; }
.login-card .btn-primary { padding: 10px; font-weight: 600; border-radius: 8px; }
.login-card .form-control { border-radius: 8px; padding: 10px 12px; }

/* ---- App shell ---- */
.app-shell { display: flex; min-height: 100vh; }

.app-sidebar {
  width: 240px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.sidebar-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 16px; border-bottom: 1px solid var(--sidebar-border);
}
.badge-logo {
  width: 36px; height: 36px; border-radius: 9px; background: var(--brand-blue);
  color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px;
  flex-shrink: 0;
}
.sidebar-logo { height: 36px; max-width: 60px; object-fit: contain; flex-shrink: 0; }
.brand-name { font-size: 13px; font-weight: 700; line-height: 1.3; color: var(--text-dark); }

.sidebar-nav { padding: 10px 8px; }
.sidebar-nav .nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 8px; color: #4a5568; font-size: 13.5px; font-weight: 500;
  margin-bottom: 2px; transition: background .12s ease, color .12s ease;
}
.sidebar-nav .nav-link i { font-size: 16px; width: 18px; }
.sidebar-nav .nav-link:hover { background: #f1f5f9; color: var(--brand-blue); }
.sidebar-nav .nav-link.active { background: #eaf6ff; color: var(--brand-blue); font-weight: 600; }

.sidebar-nav .nav-link[data-bs-toggle="collapse"] .bi-chevron-down { transition: transform .2s ease; font-size: 11px; }
.sidebar-nav .nav-link[aria-expanded="true"] .bi-chevron-down { transform: rotate(180deg); }

.subnav { padding-left: 30px; padding-top: 2px; padding-bottom: 6px; }
.subnav-link {
  display: block; padding: 7px 10px; border-radius: 6px; color: var(--text-muted); font-size: 12.5px;
  text-decoration: none; transition: background .12s ease, color .12s ease;
}
.subnav-link:hover { background: #f1f5f9; color: var(--brand-blue); }
.subnav-link.active { color: var(--brand-blue); font-weight: 600; }

.app-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.app-topbar {
  background: #fff; border-bottom: 1px solid var(--sidebar-border);
  padding: 12px 24px; display: flex; align-items: center;
}
.app-content { padding: 24px; max-width: 1400px; }

h5.mb-3, h5.mb-0 { color: var(--text-dark); }

/* ---- Stat cards ---- */
.stat-card {
  border-radius: var(--radius); padding: 20px; color: #fff; height: 100%;
  box-shadow: 0 4px 14px rgba(0,0,0,.08);
}
.stat-card .stat-value { font-size: 24px; font-weight: 700; line-height: 1.2; }
.stat-card .stat-label { font-size: 11.5px; opacity: .92; text-transform: uppercase; letter-spacing: .04em; margin-top: 2px; }
.stat-card i { font-size: 24px; opacity: .85; }

.bg-orange { background: linear-gradient(135deg, #f3944c, #e77f31); }
.bg-blue { background: linear-gradient(135deg, #4a90d9, #3576bd); }
.bg-green { background: linear-gradient(135deg, #3fb27f, #2f9468); }
.bg-red { background: linear-gradient(135deg, #e0524d, #c73f3a); }
.bg-pink { background: linear-gradient(135deg, #d94fa0, #bd3888); }
.bg-dark { background: linear-gradient(135deg, #333846, #1f232c); }
.bg-purple { background: linear-gradient(135deg, #7c5cd6, #6444bd); }
.bg-teal { background: linear-gradient(135deg, #2fb0a3, #22968b); }

.card {
  border: none; border-radius: var(--radius);
  box-shadow: 0 1px 3px rgba(16,24,40,.06), 0 1px 2px rgba(16,24,40,.04);
}
.card-body h6 { font-weight: 700; }

.table { font-size: 13.5px; }
.table thead th {
  font-size: 11.5px; text-transform: uppercase; letter-spacing: .03em; color: var(--text-muted);
  font-weight: 700; border-bottom-width: 1px;
}
.table-hover tbody tr:hover { background: #f8fafc; }

.btn { border-radius: 8px; font-weight: 500; font-size: 13.5px; }
.btn-primary { background: var(--brand-blue); border-color: var(--brand-blue); }
.btn-primary:hover { background: var(--brand-blue-dark); border-color: var(--brand-blue-dark); }
.btn-sm { border-radius: 7px; }

.form-control, .form-select { border-radius: 8px; font-size: 13.5px; border-color: #dde1e8; }
.form-control:focus, .form-select:focus { border-color: var(--brand-blue); box-shadow: 0 0 0 3px rgba(47,164,231,.15); }
.form-label { font-size: 12.5px; font-weight: 600; color: #475467; margin-bottom: 5px; }

.badge { font-weight: 600; font-size: 11px; padding: 5px 9px; border-radius: 6px; }

@media (max-width: 767px) {
  .app-sidebar { position: fixed; left: -240px; z-index: 1050; transition: left .2s ease; box-shadow: 0 0 30px rgba(0,0,0,.2); }
  .app-sidebar.open { left: 0; }
  .app-content { padding: 16px; }
}