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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

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

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 20px;
}

.header h1 {
  font-size: 2rem;
  color: #2c3e50;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

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

.search-input-group {
  position: relative;
}

.search-input-group input {
  padding: 10px 35px 10px 15px;
  border: 2px solid #ddd;
  border-radius: 8px;
  font-size: 14px;
  width: 250px;
}

.clear-search {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: #999;
  text-decoration: none;
  font-size: 18px;
  font-weight: bold;
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-primary {
  background-color: #3498db;
  color: white;
}

.btn-primary:hover {
  background-color: #2980b9;
}

.btn-secondary {
  background-color: #95a5a6;
  color: white;
}

.btn-secondary:hover {
  background-color: #7f8c8d;
}

.btn-search {
  background-color: #34495e;
  color: white;
  padding: 10px 15px;
}

.btn-full {
  width: 100%;
}

.search-results {
  margin-bottom: 20px;
  padding: 15px;
  background-color: #e8f4fd;
  border-radius: 8px;
  color: #2c3e50;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
}

.post-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.post-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.post-image {
  height: 180px;
  background-color: #f8f9fa;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.post-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.no-image {
  color: #999;
  font-size: 14px;
}

.post-content {
  padding: 20px;
}

.post-content h2 {
  font-size: 1.1rem;
  margin-bottom: 15px;
  color: #2c3e50;
  line-height: 1.4;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: #7f8c8d;
}

.empty-state p {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.text-muted {
  color: #7f8c8d;
}

.form-container {
  max-width: 600px;
  margin: 0 auto;
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.post-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 600;
  color: #2c3e50;
}

.form-group input,
.form-group textarea {
  padding: 12px;
  border: 2px solid #ddd;
  border-radius: 8px;
  font-size: 14px;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #3498db;
}

.form-help {
  font-size: 12px;
  color: #7f8c8d;
}

.message {
  padding: 15px;
  border-radius: 8px;
  margin: 15px 0;
}

.message-success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.message-error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.login-container {
  max-width: 400px;
  margin: 100px auto;
  background: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header {
    flex-direction: column;
    align-items: stretch;
  }

  .header-actions {
    flex-direction: column;
  }

  .search-form {
    flex-direction: column;
  }

  .search-input-group input {
    width: 100%;
  }

  .posts-grid {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 15px;
  }
}

@media (max-width: 480px) {
  .header h1 {
    font-size: 1.5rem;
  }

  .form-container {
    padding: 20px;
  }

  .login-container {
    margin: 50px auto;
    padding: 30px;
  }
}