:root {
  --primary: #4F46E5;
  --primary-dark: #4338CA;
  --primary-light: #EEF2FF;
  --success: #10B981;
  --danger: #EF4444;
  --warning: #F59E0B;
  --purple: #8B5CF6;
  --orange: #F97316;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-500: #6B7280;
  --gray-700: #374151;
  --gray-900: #111827;
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--gray-50);
  color: var(--gray-900);
  margin: 0;
}

/* Navbar */
.navbar {
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.navbar-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar-brand svg {
  width: 28px;
  height: 28px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-nav a {
  color: var(--gray-700);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: var(--gray-700);
}

.navbar-user .btn-logout {
  color: var(--gray-500);
  cursor: pointer;
  background: none;
  border: none;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar-user .btn-logout:hover {
  color: var(--danger);
}

/* Status Bar */
.status-bar {
  background: #fff;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--gray-200);
  font-size: 14px;
}

.status-bar .badge-success {
  background: #ECFDF5;
  color: #065F46;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
}

.status-bar .badge-warning {
  background: #FEF3C7;
  color: #92400E;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
}

.status-bar a {
  color: var(--primary);
  font-size: 13px;
  text-decoration: none;
}

/* Stats Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  padding: 20px 24px;
}

.stat-card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  border: 1px solid var(--gray-100);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.stat-icon.blue { background: #EFF6FF; color: #2563EB; }
.stat-icon.green { background: #ECFDF5; color: #059669; }
.stat-icon.red { background: #FEF2F2; color: #DC2626; }
.stat-icon.purple { background: #F5F3FF; color: #7C3AED; }
.stat-icon.orange { background: #FFF7ED; color: #EA580C; }

.stat-info .stat-label {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 4px;
}

.stat-info .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--gray-900);
}

/* Filter Bar */
.filter-bar {
  background: #fff;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--gray-200);
}

.filter-bar select,
.filter-bar input {
  padding: 8px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 14px;
  color: var(--gray-700);
  background: #fff;
  min-width: 160px;
}

.filter-bar label {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 2px;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* Buttons */
.btn {
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

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

.btn-outline {
  background: #fff;
  color: var(--gray-700);
  border-color: var(--gray-300);
}

.btn-outline:hover {
  background: var(--gray-50);
}

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

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

.btn-sm {
  padding: 4px 10px;
  font-size: 13px;
}

/* Data Table */
.table-container {
  padding: 0 24px 24px;
}

.data-table {
  width: 100%;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  border: 1px solid var(--gray-100);
  border-collapse: collapse;
}

.data-table th {
  background: var(--gray-50);
  padding: 12px 16px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-500);
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}

.data-table td {
  padding: 12px 16px;
  font-size: 13px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.data-table tr:hover {
  background: var(--gray-50);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.status-badge.running {
  background: #ECFDF5;
  color: #065F46;
}

.status-badge.stopped {
  background: #FEF2F2;
  color: #991B1B;
}

.action-btns {
  display: flex;
  gap: 4px;
}

.action-btn {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  border: 1px solid var(--gray-200);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 14px;
  color: var(--gray-500);
  transition: all 0.2s;
}

.action-btn:hover {
  background: var(--gray-50);
  color: var(--primary);
}

.action-btn.danger:hover {
  color: var(--danger);
  border-color: var(--danger);
}

.action-btn.success:hover {
  color: var(--success);
  border-color: var(--success);
}

/* Form Page */
.page-header {
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
}

.page-header .back-link {
  color: var(--gray-700);
  text-decoration: none;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-container {
  max-width: 1200px;
  margin: 24px auto;
  padding: 0 24px;
}

.form-card {
  background: #fff;
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  border: 1px solid var(--gray-100);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.col-span-2 {
  grid-column: span 2;
}

.form-group.col-span-4 {
  grid-column: span 4;
}

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  display: flex;
  align-items: center;
  gap: 4px;
}

.form-group label .help-icon {
  width: 16px;
  height: 16px;
  background: var(--gray-300);
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  cursor: help;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 10px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 14px;
  color: var(--gray-700);
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group textarea {
  min-height: 80px;
  resize: vertical;
}

.form-group .input-with-suffix {
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-group .input-with-suffix input {
  flex: 1;
}

.form-group .input-with-suffix span {
  font-size: 14px;
  color: var(--gray-500);
  white-space: nowrap;
}

/* Hour Checkboxes */
.hours-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 8px;
}

.hour-checkbox {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--gray-700);
}

.hour-checkbox input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
}

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

.login-card {
  background: #fff;
  border-radius: 16px;
  padding: 48px;
  width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.login-card h1 {
  text-align: center;
  color: var(--primary);
  margin: 0 0 8px;
  font-size: 28px;
}

.login-card p {
  text-align: center;
  color: var(--gray-500);
  margin: 0 0 32px;
  font-size: 14px;
}

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

.login-card .form-group input {
  width: 100%;
  padding: 12px 16px;
}

.login-card .btn-primary {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  justify-content: center;
}

.login-card .login-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
  color: var(--gray-500);
}

.login-card .login-footer a {
  color: var(--primary);
  text-decoration: none;
}

/* Settings Page */
.settings-container {
  max-width: 900px;
  margin: 24px auto;
  padding: 0 24px;
}

.settings-section {
  background: #fff;
  border-radius: 12px;
  padding: 24px 32px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  border: 1px solid var(--gray-100);
}

.settings-section h3 {
  margin: 0 0 20px;
  font-size: 16px;
  color: var(--gray-900);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--gray-100);
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
}

.pagination button {
  padding: 6px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  font-size: 13px;
}

.pagination button.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Toast */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
}

.toast {
  padding: 12px 20px;
  border-radius: 8px;
  margin-bottom: 8px;
  font-size: 14px;
  color: #fff;
  animation: slideIn 0.3s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.info { background: var(--primary); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  width: 480px;
  max-width: 90vw;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.modal-content h3 {
  margin: 0 0 16px;
  font-size: 18px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-500);
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
  opacity: 0.3;
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 1200px) {
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .hours-grid { grid-template-columns: repeat(8, 1fr); }
}

@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .form-group.col-span-2, .form-group.col-span-4 { grid-column: span 1; }
  .hours-grid { grid-template-columns: repeat(6, 1fr); }
  .navbar-nav { gap: 16px; }
  .settings-grid { grid-template-columns: 1fr; }
}