* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #1f2933;
  background: #f4f6f8;
}

main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 24px;
}

h1 {
  margin: 0;
  font-size: 24px;
}

p {
  margin: 6px 0 0;
  color: #627386;
}

.toolbar,
.actions,
.metrics {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.toolbar {
  justify-content: space-between;
}

.workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.url-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 16px;
  margin-bottom: 16px;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  border: 1px solid #d8dee5;
  border-radius: 8px;
  background: #ffffff;
}

.panel span,
.metrics span {
  color: #627386;
  font-size: 13px;
}

textarea {
  width: 100%;
  min-height: 260px;
  resize: vertical;
  border: 1px solid #c8d1dc;
  border-radius: 6px;
  padding: 10px;
  font: 14px/1.45 Consolas, "Courier New", monospace;
}

#compactUrl {
  min-height: 120px;
}

button {
  border: 1px solid #1f6feb;
  border-radius: 6px;
  padding: 9px 14px;
  color: #ffffff;
  background: #1f6feb;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: #195fc8;
}

.status {
  padding: 8px 10px;
  border-radius: 6px;
  color: #17436f;
  background: #dceeff;
  font-size: 13px;
}

.status.error {
  color: #7a1f1f;
  background: #ffe0e0;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.metrics div {
  padding: 12px;
  border: 1px solid #d8dee5;
  border-radius: 8px;
  background: #ffffff;
}

.metrics strong {
  display: block;
  margin-top: 6px;
  font-size: 20px;
}

pre {
  min-height: 120px;
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font: 14px/1.45 Consolas, "Courier New", monospace;
}

.qr-panel {
  align-items: center;
}

.qr-code {
  width: 200px;
  max-width: 100%;
  aspect-ratio: 1;
}

.qr-code svg {
  width: 100%;
  height: 100%;
  display: block;
}

@media (max-width: 760px) {
  main {
    padding: 14px;
  }

  .toolbar,
  .actions {
    align-items: stretch;
    flex-direction: column;
  }

  .workspace,
  .url-grid,
  .metrics {
    grid-template-columns: 1fr;
  }
}