* {
  box-sizing: border-box;
}

.pdf-container {
  max-width: 1000px;
  margin: auto;
  background: #ffffff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.pdf-viewer {
  width: 100%;
  height: 550px;
  border: 1px solid #ddd;
  border-radius: 8px;
  overflow: hidden;
}

.pdf-viewer iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.pdf-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 15px;
}

.pdf-button {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 7px;
  text-decoration: none;
  font-weight: bold;
  color: white;
  background: #1a73e8;
  transition: 0.2s;
}

.pdf-button:hover {
  background: #1558b0;
}

.pdf-button.download {
  background: #188038;
}

.pdf-button.download:hover {
  background: #137333;
}

@media (max-width: 600px) {
  .pdf-container {
    padding: 10px;
  }

  .pdf-viewer {
    height: 400px;
  }

  .pdf-button {
    width: 100%;
    text-align: center;
  }
}