body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #121212;
  color: #e0e0e0;
}

.app-container {
  display: flex;
  height: 100vh;
}

.sidebar-feeds {
  width: 280px;
  background-color: #1e1e1e;
  padding: 1rem;
  border-right: 1px solid #333;
  display: flex;
  flex-direction: column;
}

.sidebar-title {
  text-align: center;
  color: #4dd0ff;
  margin: 0 0 10px 0;
}

.sidebar-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 1rem;
}

.sidebar-buttons button {
  padding: 0.5rem;
  border: none;
  border-radius: 4px;
  background: #333;
  color: #fff;
  cursor: pointer;
  font-size: 0.9rem;
}

.sidebar-buttons button:hover {
  background: #444;
}

.search-bar {
  display: flex;
  margin-bottom: 1rem;
}

.search-bar input {
  flex: 1;
  padding: 0.5rem;
  border: none;
  border-radius: 4px 0 0 4px;
  outline: none;
}

.search-bar button {
  padding: 0.5rem 1rem;
  border: none;
  background: #555;
  color: #fff;
  border-radius: 0 4px 4px 0;
  cursor: pointer;
}

.feed-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem;
  margin-bottom: 0.5rem;
  background: #2a2a2a;
  border-radius: 4px;
  cursor: pointer;
}

.feed-item:hover,
.active-feed {
  background: #444;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.app-header {
  background: #1e1e1e;
  padding: 1rem;
  text-align: center;
  border-bottom: 1px solid #333;
}

.app-title {
  margin: 0;
  color: #4dd0ff;
  font-size: 1.6rem;
}

.article-container {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.article-card {
  background: #2a2a2a;
  padding: 1rem;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.4);
}

.article-card h2 a {
  color: #4dd0ff;
  text-decoration: none;
}

.article-card h2 a:hover {
  text-decoration: underline;
}

.article-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.bookmark-btn {
  background: #ffd700;
  border: none;
  padding: 4px 8px;
  cursor: pointer;
  border-radius: 4px;
}

.share-buttons button {
  margin-top: 8px;
  padding: 4px 8px;
  border: none;
  background: #4caf50;
  color: #fff;
  border-radius: 4px;
  cursor: pointer;
}

audio, video {
  margin-top: 10px;
  max-width: 100%;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: #1e1e1e;
  padding: 20px;
  border-radius: 6px;
  width: 500px;
  max-height: 80vh;
  overflow-y: auto;
}

.close-btn {
  cursor: pointer;
  float: right;
  font-size: 1.5rem;
  color: #fff;
}