.tool-card {
  background: #ffffff;
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  max-width: 900px;
  margin: 0 auto;
}

.upload-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.label {
  font-weight: 600;
  color: #1f2937;
}

input[type="file"] {
  padding: 10px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  background: #f9fafb;
}

.submit-btn,
.download-btn,
.back-link {
  display: inline-block;
  text-decoration: none;
  border: none;
  border-radius: 10px;
  padding: 12px 16px;
  font-weight: 600;
  cursor: pointer;
}

.submit-btn {
  width: fit-content;
  background: #0f7b45;
  color: #ffffff;
}

.submit-btn:hover {
  opacity: 0.92;
}

.download-btn {
  background: #f2c94c;
  color: #1f2937;
}

.back-link {
  color: #0f7b45;
  padding: 0;
}

.status {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 12px;
  font-weight: 500;
}

.status.success {
  background: #eaf8ef;
  color: #166534;
  border: 1px solid #b7ebc6;
}

.status.error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.result-block {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid #e5e7eb;
}

pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 16px;
  overflow-x: auto;
}