Шаблоны простых элементов веб-страниц — CSS

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.3s;
}

.modal-dialog {
  position: relative;
  margin: 10% auto;
  max-width: 500px;
  animation: slideIn 0.3s;
}

.modal-content {
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  margin: 0;
  font-size: 1.4rem;
  color: #333;
}

.close {
  font-size: 1.8rem;
  background: none;
  border: none;
  cursor: pointer;
  color: #999;
}

.close:hover {
  color: #333;
}

.modal-body {
  padding: 1.5rem;
  color: #555;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid #eee;
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideIn {
  from { transform: translateY(-20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}