:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --secondary: #64748b;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --background: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --text-light: #64748b;
  --border: #e2e8f0;
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--background);
  color: var(--text);
  line-height: 1.6;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.wrapper {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 20px 0;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-header {
  padding: 0 20px 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.sidebar-header p {
  font-size: 14px;
  color: var(--text-light);
  margin-top: 4px;
}

.sidebar-nav {
  padding: 20px 0;
}

.nav-item {
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  transition: all 0.2s;
  font-size: 15px;
}

.nav-item:hover {
  background: var(--background);
  color: var(--primary);
}

.nav-item.active {
  background: var(--primary);
  color: white;
  font-weight: 500;
}

.nav-icon {
  width: 20px;
  height: 20px;
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: 260px;
  padding: 30px;
}

.page-header {
  margin-bottom: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-header h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--text-light);
  font-size: 15px;
}

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

.stat-card {
  background: var(--card);
  padding: 24px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.stat-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-light);
  font-weight: 500;
}

.stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.stat-icon.blue {
  background: #dbeafe;
  color: var(--primary);
}
.stat-icon.green {
  background: #d1fae5;
  color: var(--success);
}
.stat-icon.yellow {
  background: #fef3c7;
  color: var(--warning);
}
.stat-icon.red {
  background: #fee2e2;
  color: var(--danger);
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 4px;
}

.stat-change {
  font-size: 13px;
  color: var(--success);
}

/* Card */
.card {
  background: var(--card);
  border-radius: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin-bottom: 20px;
}

.card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-title {
  font-size: 18px;
  font-weight: 600;
}

.card-body {
  padding: 24px;
}

/* Table */
.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background: var(--background);
}

th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background: var(--background);
}

/* Buttons */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

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

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

.btn-success {
  background: var(--success);
  color: white;
}

.btn-success:hover {
  background: #059669;
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-secondary {
  background: var(--secondary);
  color: white;
}

.btn-secondary:hover {
  background: #475569;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

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

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 14px;
  color: var(--text);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  transition: all 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  background: white;
  cursor: pointer;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.badge-success {
  background: #d1fae5;
  color: #065f46;
}

.badge-danger {
  background: #fee2e2;
  color: #991b1b;
}

.badge-warning {
  background: #fef3c7;
  color: #92400e;
}

.badge-info {
  background: #dbeafe;
  color: #1e40af;
}

/* Alert */
.alert {
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
}

.alert-success {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #6ee7b7;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

.alert-info {
  background: #dbeafe;
  color: #1e40af;
  border: 1px solid #93c5fd;
}

/* Login Page */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 20px;
}

.login-card {
  background: white;
  padding: 40px;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 420px;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header h1 {
  font-size: 28px;
  margin-bottom: 8px;
}

.login-header p {
  color: var(--text-light);
  font-size: 15px;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: white;
  border-radius: 12px;
  padding: 24px;
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-light);
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    width: 200px;
  }

  .main-content {
    margin-left: 200px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .sidebar {
    display: none;
  }

  .main-content {
    margin-left: 0;
  }
}

/* Added styles for user detail page and status badges */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-item label {
  font-size: 13px;
  color: var(--text-light);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.detail-item span {
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
}

.badge-upcoming {
  background: #dbeafe;
  color: #1e40af;
}

.badge-active {
  background: #d1fae5;
  color: #065f46;
}

.badge-completed {
  background: #e5e7eb;
  color: #374151;
}

.badge-cancelled {
  background: #fee2e2;
  color: #991b1b;
}