:root {
  --primary-color: #009146;
  --primary-dark: #007438;
  --primary-light: #e6f7ef;
  --accent-color: #38bdf8;
  --dark-bg: #1e293b;
  --sidebar-bg: #0f172a;
  --light-bg: #f8fafc;
  --card-bg: #ffffff;
  --text-main: #334155;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --danger: #ef4444;
  --success: #10b981;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--light-bg);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
}

/* Layout */
.admin-wrapper {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
  width: 260px;
  background-color: var(--sidebar-bg);
  color: #fff;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.admin-sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-sidebar-header h2 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}

.admin-sidebar-header span {
  color: var(--accent-color);
}

.admin-nav {
  list-style: none;
  padding: 20px 0;
  flex-grow: 1;
}

.admin-nav li a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  color: #94a3b8;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.admin-nav li a:hover,
.admin-nav li.active a {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.08);
  border-left: 4px solid var(--primary-color);
}

.admin-nav-footer {
  padding: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-logout {
  display: block;
  text-align: center;
  background-color: rgba(239, 68, 68, 0.15);
  color: #f87171;
  text-decoration: none;
  padding: 10px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.2s;
}

.btn-logout:hover {
  background-color: var(--danger);
  color: #fff;
}

/* Main Content Area */
.admin-main {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

.admin-topbar {
  background-color: var(--card-bg);
  padding: 16px 32px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.admin-topbar h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--dark-bg);
}

.admin-user-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.badge-user {
  background-color: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
}

.admin-content {
  padding: 32px;
}

/* Stats Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.stat-card {
  background-color: var(--card-bg);
  padding: 24px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.stat-card .label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-card .value {
  font-size: 28px;
  font-weight: 700;
  color: var(--dark-bg);
  margin-top: 8px;
}

/* Cards & Forms */
.card {
  background-color: var(--card-bg);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  margin-bottom: 24px;
  overflow: hidden;
}

.card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--dark-bg);
}

.card-body {
  padding: 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-group .help-text {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  outline: none;
  transition: border-color 0.2s;
  background-color: #fff;
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 145, 70, 0.15);
}

.btn-primary {
  background-color: var(--primary-color);
  color: #fff;
  border: none;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s;
  text-decoration: none;
  display: inline-block;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
}

.btn-secondary {
  background-color: #e2e8f0;
  color: #334155;
  border: none;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.btn-secondary:hover {
  background-color: #cbd5e1;
}

/* Alerts */
.alert {
  padding: 14px 20px;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 14px;
  font-weight: 500;
}

.alert-success {
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.alert-danger {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}

.admin-table th {
  background-color: #f1f5f9;
  padding: 12px 16px;
  font-weight: 600;
  color: #475569;
  border-bottom: 1px solid var(--border-color);
}

.admin-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
}

.admin-table tr:hover td {
  background-color: #f8fafc;
}

/* Login Page Styling */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  padding: 36px 32px;
}

.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.login-header h2 {
  font-size: 22px;
  font-weight: 700;
  color: #0f172a;
}

.login-header p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 6px;
}

@media (max-width: 768px) {
  .admin-wrapper {
    flex-direction: column;
  }
  .admin-sidebar {
    width: 100%;
  }
  .admin-content {
    padding: 16px;
  }
}