* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #f5f7f8;
  color: #182024;
  font-family: Arial, Helvetica, sans-serif;
}

.shell {
  width: min(1040px, calc(100% - 32px));
  margin: 40px auto;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 16px;
}

.panel {
  background: #ffffff;
  border: 1px solid #dce3e6;
  border-radius: 8px;
  padding: 20px;
  min-width: 0;
}

.heading h1,
.heading h2 {
  margin: 0 0 8px;
  font-size: 26px;
  line-height: 1.2;
}

.heading h2 {
  font-size: 18px;
}

.heading p {
  margin: 0 0 20px;
  color: #5d6a70;
  line-height: 1.5;
}

.compact p {
  margin-bottom: 12px;
}

.drop {
  min-height: 180px;
  border: 1px dashed #8fa1aa;
  border-radius: 8px;
  display: grid;
  place-items: center;
  padding: 20px;
  text-align: center;
  background: #fbfcfc;
  color: #435057;
  cursor: pointer;
}

.drop input {
  max-width: 100%;
}

.actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

button {
  border: 1px solid #aebbc1;
  background: #ffffff;
  color: #1d272c;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 6px;
  font-weight: 700;
  cursor: pointer;
}

button.primary {
  background: #146c63;
  border-color: #146c63;
  color: #ffffff;
}

pre {
  min-height: 300px;
  max-height: 620px;
  overflow: auto;
  margin: 0;
  padding: 14px;
  background: #101719;
  color: #d8f3ea;
  border-radius: 8px;
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
}

@media (max-width: 760px) {
  .shell {
    grid-template-columns: 1fr;
    margin: 16px auto;
  }

  .actions {
    flex-direction: column;
  }
}