:root {
  --gt-bg: #eef3f1;
  --gt-ink: #10221e;
  --gt-muted: #5b6f6a;
  --gt-line: #d7e4df;
  --gt-card: #ffffff;
  --gt-primary: #0f8a7a;
  --gt-primary-dark: #0b6b5e;
  --gt-accent: #ef9f27;
  --gt-danger: #e15a4a;
  --gt-success: #1aa06d;
  --gt-sidebar: #0c1f1c;
  --gt-sidebar-2: #14332e;
  --gt-radius: 18px;
  --gt-shadow: 0 10px 30px rgba(16, 34, 30, 0.08);
}

html, body {
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  background: var(--gt-bg);
  color: var(--gt-ink);
}

.content-wrapper {
  background: radial-gradient(1200px 400px at 0% 0%, #dff5ef 0%, transparent 50%), var(--gt-bg) !important;
}

.main-header.navbar {
  background: rgba(255, 255, 255, 0.86) !important;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gt-line) !important;
  box-shadow: none !important;
}

.main-header .nav-link {
  color: var(--gt-ink) !important;
  font-weight: 600;
}

.main-sidebar {
  background: linear-gradient(180deg, var(--gt-sidebar) 0%, var(--gt-sidebar-2) 100%) !important;
  box-shadow: 12px 0 40px rgba(12, 31, 28, 0.18);
}

.brand-link {
  display: flex !important;
  align-items: center;
  background: transparent !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  padding: 1rem 1rem !important;
}

.gt-logo {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #19c3ad, #0f8a7a);
  color: #fff;
  margin-right: 10px;
  box-shadow: 0 8px 18px rgba(15, 138, 122, 0.35);
}

.brand-text {
  font-weight: 800 !important;
  letter-spacing: -0.03em;
  color: #fff !important;
}

.sidebar .user-panel {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
}

.sidebar .user-panel .info a {
  color: #e8f6f3 !important;
  font-weight: 700;
}

.nav-sidebar .nav-link {
  border-radius: 12px !important;
  margin: 4px 8px;
  color: #c9ddd8 !important;
  font-weight: 600;
}

.nav-sidebar .nav-link:hover {
  background: rgba(255, 255, 255, 0.06) !important;
  color: #fff !important;
}

.nav-sidebar .nav-link.active {
  background: linear-gradient(135deg, #19c3ad, #0f8a7a) !important;
  color: #fff !important;
  box-shadow: 0 8px 18px rgba(15, 138, 122, 0.28);
}

.nav-sidebar .nav-link.gt-cta {
  background: rgba(239, 159, 39, 0.16) !important;
  color: #ffd38a !important;
}

.nav-sidebar .nav-link.gt-cta.active,
.nav-sidebar .nav-link.gt-cta:hover {
  background: #ef9f27 !important;
  color: #10221e !important;
}

.content-header h1 {
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--gt-ink);
}

.gt-sub {
  color: var(--gt-muted);
  margin-top: 4px;
  font-size: 0.95rem;
}

.card {
  border: 0 !important;
  border-radius: var(--gt-radius) !important;
  box-shadow: var(--gt-shadow) !important;
  overflow: hidden;
}

.card-header {
  background: #fff !important;
  border-bottom: 1px solid var(--gt-line) !important;
  font-weight: 700;
}

.card-title {
  font-weight: 800 !important;
  letter-spacing: -0.02em;
}

.card-primary .card-header,
.card-success .card-header,
.card-warning .card-header,
.card-danger .card-header,
.card-info .card-header,
.card-outline {
  border-top: 0 !important;
}

.btn {
  border-radius: 12px !important;
  font-weight: 700;
  padding: 0.5rem 1rem;
}

.btn-primary {
  background: var(--gt-primary) !important;
  border-color: var(--gt-primary) !important;
}

.btn-primary:hover {
  background: var(--gt-primary-dark) !important;
  border-color: var(--gt-primary-dark) !important;
}

.btn-warning {
  background: var(--gt-accent) !important;
  border-color: var(--gt-accent) !important;
  color: #10221e !important;
}

.btn-success {
  background: var(--gt-success) !important;
  border-color: var(--gt-success) !important;
}

.form-control, .custom-select, select.form-control {
  border-radius: 12px !important;
  border-color: #cfe0db !important;
  min-height: 42px;
}

.form-control:focus {
  border-color: var(--gt-primary) !important;
  box-shadow: 0 0 0 0.18rem rgba(15, 138, 122, 0.18) !important;
}

.table thead th {
  border-top: 0;
  background: #f6faf8;
  color: #3e534e;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge {
  border-radius: 999px;
  padding: 0.4em 0.7em;
  font-weight: 700;
}

.gt-stat {
  position: relative;
  background: #fff;
  border-radius: var(--gt-radius);
  box-shadow: var(--gt-shadow);
  padding: 22px 22px 18px;
  overflow: hidden;
  min-height: 132px;
}

.gt-stat h3 {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  margin: 0;
}

.gt-stat p {
  margin: 4px 0 0;
  color: var(--gt-muted);
  font-weight: 600;
}

.gt-stat .gt-ico {
  position: absolute;
  right: 16px;
  top: 16px;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.gt-stat.teal .gt-ico { background: #dff7f2; color: #0f8a7a; }
.gt-stat.green .gt-ico { background: #def7ea; color: #1aa06d; }
.gt-stat.amber .gt-ico { background: #fff1d6; color: #d48912; }
.gt-stat.rose .gt-ico { background: #fde8e4; color: #d35446; }

.gt-delta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 800;
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 0.82rem;
}

.gt-delta.up { background: #def7ea; color: #157a54; }
.gt-delta.down { background: #fde8e4; color: #c4473a; }
.gt-delta.flat { background: #eef2f1; color: #6b7c77; }

.plat-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
}

.plat-wa { color: #128c7e; }
.plat-tg { color: #229ed9; }
.plat-other { color: #64748b; }

.gt-alert {
  border: 0;
  border-radius: 14px;
  font-weight: 600;
}

.empty-state {
  text-align: center;
  padding: 42px 20px;
  color: var(--gt-muted);
}

.empty-state i {
  font-size: 2rem;
  color: var(--gt-primary);
  margin-bottom: 10px;
}

.main-footer {
  background: transparent !important;
  border-top: 1px solid var(--gt-line) !important;
  color: var(--gt-muted);
}

.action-btns .btn {
  width: 36px;
  height: 36px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.count-preview {
  font-size: 0.8rem;
  font-weight: 800;
  min-height: 18px;
}

.auth-shell {
  min-height: 100vh;
  display: flex;
  background: #0c1f1c;
}

.auth-brand {
  flex: 1.1;
  padding: 48px;
  color: #e8f6f3;
  background:
    radial-gradient(800px 400px at 20% 20%, rgba(25, 195, 173, 0.28), transparent 55%),
    linear-gradient(160deg, #0c1f1c 0%, #14332e 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth-brand h1 {
  font-weight: 800;
  letter-spacing: -0.05em;
  font-size: 2.6rem;
}

.auth-brand p {
  max-width: 420px;
  color: #b7d2cc;
  font-size: 1.05rem;
}

.auth-form {
  flex: 0.9;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eef3f1;
  padding: 32px 20px;
}

.auth-card {
  width: 100%;
  max-width: 430px;
  background: #fff;
  border-radius: 24px;
  box-shadow: var(--gt-shadow);
  padding: 32px;
}

.auth-card h2 {
  font-weight: 800;
  letter-spacing: -0.04em;
}

.preloader {
  display: none !important;
}

.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
  border-radius: 10px;
  border: 1px solid #cfe0db;
  padding: 4px 10px;
}

.table-hover tbody tr:hover {
  background: #f4faf8;
}

.action-btns form {
  display: inline;
}

#historyChart, #overallMemberGrowthChart, #platformChart {
  max-width: 100%;
}

@media (max-width: 991px) {
  .auth-brand { display: none; }
  .auth-shell { background: #eef3f1; }
}