:root {
  --bg: #cfd4dc;
  --surface: #ffffff;
  --surface-soft: #d3d8e0;
  --text: #172033;
  --text-soft: #7d8ea8;
  --border: #c8d0dc;
  --primary: #5d66e8;
  --primary-strong: #4d56d6;
  --accent: #a5b4fc;
  --danger: #ef4444;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 8px 20px rgba(15, 23, 42, 0.15);
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.45;
}

.content-wrapper,
.main-footer {
  background: var(--surface-soft);
}

.main-header.navbar {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid #c8d0dc;
  backdrop-filter: blur(10px);
}

.main-header.navbar .nav-link,
.main-header.navbar .navbar-nav .nav-link,
.main-header.navbar .navbar-nav .nav-link i {
  color: #1f2937 !important;
}

.main-header.navbar .nav-link:hover,
.main-header.navbar .navbar-nav .nav-link:hover {
  color: #111827 !important;
}

.main-sidebar {
  background: linear-gradient(180deg, #0f1d39 0%, #0b1a36 100%);
}

.brand-link {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.brand-link .brand-text {
  color: #f8fafc;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.sidebar-dark-primary .nav-sidebar > .nav-item > .nav-link {
  color: #9fb0d6;
  border-radius: 10px;
  margin: 2px 8px;
}

.sidebar-dark-primary .nav-sidebar > .nav-item > .nav-link:hover {
  background: rgba(93, 102, 232, 0.16);
  color: #dbe6ff;
}

.sidebar-dark-primary .nav-sidebar > .nav-item > .nav-link.active {
  background: rgba(93, 102, 232, 0.26);
  box-shadow: none;
  color: #d9e4ff;
}

.nav-sidebar .nav-header {
  color: rgba(155, 173, 208, 0.72);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  margin-top: 10px;
}

.content-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.card,
.small-box,
.alert,
.tabulator {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.card {
  background: var(--surface);
}

.card-header {
  background: #f8fafc;
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.card-title {
  font-weight: 600;
}

.small-box {
  overflow: hidden;
}

.small-box > .inner {
  position: relative;
  z-index: 1;
}

.small-box .icon {
  color: rgba(255, 255, 255, 0.23);
}

.small-box.bg-info {
  background: linear-gradient(135deg, #2d3038, #1f2128) !important;
}

.small-box.bg-success {
  background: linear-gradient(135deg, #3b3f48, #272a31) !important;
}

.small-box.bg-warning {
  background: linear-gradient(135deg, #575d69, #3f434c) !important;
}

.small-box .small-box-footer {
  background: rgba(0, 0, 0, 0.28);
}

.btn {
  border-radius: var(--radius-sm);
  font-weight: 500;
  box-shadow: none !important;
}

.btn-sm {
  font-size: 0.95rem;
  padding: 0.28rem 0.65rem;
}

.btn-primary {
  background: var(--primary);
  border: 1px solid var(--primary);
}

.btn-primary:hover,
.btn-primary:focus {
  background: #1d4ed8;
  border-color: #1d4ed8;
}

.btn-default {
  background: #f8fafc;
  border: 1px solid #d1d5db;
  color: #374151;
}

.btn-default:hover {
  background: #eef2f7;
  color: #111827;
}

.form-control,
.custom-select {
  background: #ffffff;
  color: var(--text);
  border-radius: var(--radius-sm);
  border-color: var(--border);
  box-shadow: none;
  font-size: 1rem;
}

.form-control::placeholder {
  color: #7e848f;
}

.form-control:focus,
.custom-select:focus {
  background: #ffffff;
  color: var(--text);
  border-color: #60a5fa;
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.16);
}

.input-group-text {
  background: #f3f4f6;
  border-color: var(--border);
  color: var(--text-soft);
}

select.form-control,
select.custom-select {
  color-scheme: light;
}

.badge-danger {
  background: linear-gradient(135deg, #ef4444, #b91c1c);
}

.badge-warning {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
}

/* Bootstrap-like clean data table */
.card .table {
  margin-bottom: 0;
  background: #fff;
}

.card .table thead th {
  background: #f8fafc;
  color: #4b5563;
  font-weight: 600;
  font-size: 0.98rem;
  white-space: nowrap;
  border-top: 0;
  border-bottom: 1px solid #d9dee7;
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
}

.card .table thead th:first-child {
  min-width: 120px;
}

.card .table td,
.card .table th {
  color: var(--text);
  border-top: 1px solid #edf1f6;
  vertical-align: middle;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.card .table.table-striped tbody tr:nth-of-type(odd) {
  background-color: #fcfdff;
}

.card .table.table-hover tbody tr:hover {
  background: #eff6ff;
}

.card .table a:not(.btn) {
  color: #2563eb;
  font-weight: 500;
}

.card .table a:not(.btn):hover {
  color: #1d4ed8;
}

.card .table .btn.btn-sm {
  border-radius: 8px;
  min-width: 34px;
  padding: 0.28rem 0.58rem;
}

.btn-danger {
  background: #dc3545;
  border-color: #dc3545;
}

.btn-danger:hover,
.btn-danger:focus {
  background: #c82333;
  border-color: #c82333;
}

.tabulator {
  border-color: var(--border) !important;
  background: #ffffff;
  color: var(--text);
}

.tabulator .tabulator-header {
  color: var(--text-soft);
  background: #f8fafc;
  border-bottom: 1px solid var(--border);
}

.main-footer {
  border-top: 1px solid var(--border);
  color: var(--text-soft);
  font-weight: 600;
}

.login-page {
  min-height: 100vh;
  background: radial-gradient(circle at top right, #dbeafe 0%, #f8fbff 45%, #eef2f7 100%);
  font-family: "Plus Jakarta Sans", "PingFang SC", "Noto Sans SC", sans-serif;
}

.login-box {
  width: 390px;
}

.login-logo a,
.login-logo {
  color: #1f2937;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.login-card-body {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  background: rgba(255, 255, 255, 0.96);
}

.login-box-msg {
  color: var(--text-soft);
}

.navbar-light .navbar-nav .nav-link,
.content-header h1,
.card-title,
.card-body,
.login-card-body,
.text-muted {
  color: var(--text);
}

.text-muted {
  color: var(--text-soft) !important;
}

@media (max-width: 768px) {
  .content-header h1 {
    font-size: 1.4rem;
  }

  .login-box {
    width: 92%;
  }
}