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

body {
  font-family: system-ui, -apple-system, sans-serif;
  background-color: #f5f5f5;
  color: #333;
  line-height: 1.6;
}

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

.header {
  background-color: #fff;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.title {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 8px;
}

.subtitle {
  color: #666;
  font-size: 14px;
}

.tabs {
  display: flex;
  background-color: #fff;
  border-radius: 8px;
  margin-bottom: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tab {
  flex: 1;
  padding: 15px 20px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 16px;
  transition: background-color 0.2s;
}

.tab:first-child {
  border-radius: 8px 0 0 8px;
}

.tab:last-child {
  border-radius: 0 8px 8px 0;
}

.tab.active {
  background-color: #007bff;
  color: white;
}

.tab:hover:not(.active) {
  background-color: #f8f9fa;
}

.content {
  background-color: #fff;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}

.table th,
.table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid #e9ecef;
}

.table th {
  background-color: #f8f9fa;
  font-weight: 600;
}

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

.btn {
  display: inline-block;
  padding: 8px 16px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
  transition: background-color 0.2s;
}

.btn-primary {
  background-color: #007bff;
  color: white;
}

.btn-primary:hover {
  background-color: #0056b3;
}

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

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

.btn-secondary {
  background-color: #6c757d;
  color: white;
}

.btn-secondary:hover {
  background-color: #545b62;
}

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

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

.form-input {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 14px;
}

.form-input:focus {
  outline: none;
  border-color: #007bff;
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.audio-player {
  width: 100%;
  margin: 10px 0;
}

.loading {
  text-align: center;
  padding: 40px;
  color: #666;
}

.error {
  background-color: #f8d7da;
  color: #721c24;
  padding: 10px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.success {
  background-color: #d4edda;
  color: #155724;
  padding: 10px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.empty-state {
  text-align: center;
  padding: 40px;
  color: #666;
}

.feed-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px;
  border: 1px solid #e9ecef;
  border-radius: 4px;
  margin-bottom: 10px;
}

.feed-info {
  flex: 1;
}

.feed-title {
  font-weight: 500;
  margin-bottom: 4px;
}

.feed-url {
  color: #666;
  font-size: 14px;
}

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