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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f5f5f5;
}

.header {
  background-color: white;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  z-index: 100;
  width: 100%;
  top: 0;
}

.header .logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #007bff;
  min-width: 150px;
}

.search-input {
  max-width: 400px;
  margin: 0 20px;
}

.feed {
  max-width: 1920px;
  margin: 0 auto;
  padding-top: 100px;
}

.card {
  border: 1px solid #dee2e6;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  margin-bottom: 30px;
  max-width: 1920px;
}

.card-body {
  padding: 20px;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: #333;
}

.post-content {
  margin: 20px 0;
  width: 100%;
  max-width: 1920px;
}

.post-content img,
.post-content video {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

.vote-buttons {
  margin-top: 20px;
  display: flex;
  gap: 10px;
}

.btn-success {
  background-color: #28a745;
  border-color: #28a745;
  color: white;
}

.btn-success:hover {
  background-color: #218838;
  border-color: #218838;
}

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

.btn-danger:hover {
  background-color: #c82333;
  border-color: #bd2130;
}

.text-muted {
  color: #6c757d !important;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .header .logo {
    font-size: 1.2rem;
  }
  
  .search-input {
    max-width: 200px;
    margin: 0 10px;
  }
  
  .feed {
    padding-top: 80px;
  }
  
  .card {
    margin-bottom: 20px;
  }
}