.wrap-app {
  max-width: 700px;
  margin: 50px auto;
  padding: 30px 20px;
  text-align: center;
  background: #ffffff;
  border-radius: 10px;
  box-shadow: 0px 1px 4px 1px rgba(0, 0, 0, 0.1);
}

header {
  margin-bottom: 30px;
}

header p {
  color: #7e7e7e;
  font-weight: 500;
  font-size: 20px;
}

.upload-box {
  margin-bottom: 20px;
}

#imageInput {
  display: none;
}

.upload-label {
  background: #015196;
  color: #fff;
  padding: 10px 20px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 1rem;
}

.upload-label:hover {
  background: #2980b9;
}

.quality-slider {
  margin-bottom: 20px;
}

#qualityRange {
  width: 100%;
  margin-top: 10px;
}

#convertButton {
  background: #015196;
  color: #fff;
  border: none;
  padding: 10px 20px;
  font-size: 1rem;
  border-radius: 10px;
  cursor: pointer;
}

#convertButton:disabled {
  background: #bdc3c7;
  cursor: not-allowed;
}

.result-box {
  margin-top: 30px;
  text-align: center;
}

.result-box.hidden {
  display: none;
}

.file-info {
  margin-bottom: 20px;
}

#convertedPreview {
  width: 100%;
  height: auto;
  margin: 20px 0;
  border: 2px solid #ddd;
  border-radius: 10px;
}

#downloadLink {
  background: #015196;
  color: #fff;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 10px;
  font-size: 1rem;
}

#downloadLink.hidden {
  display: none;
}

#downloadLink:hover {
  background: #c0392b;
}