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

:root {
  --primary-color: #f38020;
  --primary-hover: #e07015;
  --secondary-color: #6c757d;
  --success-color: #28a745;
  --danger-color: #dc3545;
  --bg-color: #f8f9fa;
  --card-bg: #ffffff;
  --text-color: #333;
  --border-color: #dee2e6;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

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

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-bottom: 2px solid var(--primary-color);
  margin-bottom: 30px;
}

h1 {
  color: var(--primary-color);
  font-size: 28px;
}

h2 {
  font-size: 20px;
  margin-bottom: 15px;
  color: var(--text-color);
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}

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

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

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

.btn-secondary:hover {
  background-color: #5a6268;
}

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

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

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.zone-section {
  background: var(--card-bg);
  padding: 20px;
  border-radius: 8px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

.zone-select-wrapper {
  max-width: 400px;
}

.form-select, .form-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.2s;
}

.form-select:focus, .form-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.records-section {
  background: var(--card-bg);
  padding: 20px;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

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

.filter-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
}

.filter-bar .form-select {
  width: 150px;
}

.filter-bar .form-input {
  flex: 1;
  max-width: 300px;
}

.table-wrapper {
  overflow-x: auto;
}

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

.records-table th,
.records-table td {
  padding: 12px 8px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.records-table th {
  background-color: #f8f9fa;
  font-weight: 600;
  color: var(--text-color);
}

.records-table tr:hover {
  background-color: #f8f9fa;
}

.record-type {
  display: inline-block;
  padding: 2px 8px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.record-name {
  word-break: break-all;
}

.record-content {
  word-break: break-all;
  font-family: monospace;
  font-size: 13px;
}

.proxy-status {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
}

.proxy-status.active {
  background-color: #d4edda;
  color: var(--success-color);
}

.proxy-status.inactive {
  background-color: #f8d7da;
  color: var(--danger-color);
}

.actions {
  display: flex;
  gap: 5px;
}

.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.error {
  background-color: #f8d7da;
  color: var(--danger-color);
  padding: 15px;
  border-radius: 6px;
  margin-top: 20px;
  border: 1px solid #f5c6cb;
}

.no-records {
  text-align: center;
  padding: 40px;
  color: var(--secondary-color);
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background-color: white;
  border-radius: 8px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  border-bottom: 1px solid var(--border-color);
}

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

.modal-close:hover {
  color: var(--text-color);
}

.modal-body {
  padding: 20px;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 500;
}

.checkbox-group {
  display: flex;
  align-items: center;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
  padding-top: 15px;
  border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
  .records-table {
    font-size: 13px;
  }

  .records-table th,
  .records-table td {
    padding: 8px 4px;
  }

  .filter-bar {
    flex-direction: column;
  }

  .filter-bar .form-select,
  .filter-bar .form-input {
    width: 100%;
    max-width: none;
  }

  .section-header {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }
}

.api-key-section {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
}

.api-key-box {
  background: var(--card-bg);
  padding: 40px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  text-align: center;
  max-width: 450px;
  width: 100%;
}

.api-key-box h2 {
  margin-bottom: 10px;
  color: var(--primary-color);
}

.api-key-box p {
  color: var(--secondary-color);
  margin-bottom: 20px;
}

.api-key-form {
  display: flex;
  gap: 10px;
}

.api-key-form .form-input {
  flex: 1;
}

.header-actions {
  display: flex;
  gap: 10px;
}