body {
  margin: 0;
  background: #f8fafc;
  color: #102a43;
  font-family: Arial, sans-serif;
}

a {
  color: inherit;
}

.shell {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.topline a {
  color: #004085;
  font-weight: 800;
  text-decoration: none;
}

.hero {
  margin-bottom: 24px;
  border-bottom: 1px solid #d9e2ec;
  padding-bottom: 20px;
}

.kicker {
  margin: 0 0 8px;
  color: #2f855a;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

h1 {
  margin: 0;
  color: #102a43;
  font-size: 2.3rem;
}

.hero p,
.note {
  max-width: 780px;
  color: #52606d;
  line-height: 1.6;
}

.panel {
  background: #fff;
  border: 1px solid #d9e2ec;
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(16, 42, 67, 0.08);
  padding: 22px;
  margin-top: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.catalog-card {
  display: block;
  min-height: 150px;
  background: #fff;
  border: 1px solid #d9e2ec;
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(16, 42, 67, 0.08);
  padding: 20px;
  text-decoration: none;
}

.catalog-card span {
  display: block;
  color: #2f855a;
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.catalog-card h2 {
  margin: 8px 0;
  color: #102a43;
  font-size: 1.2rem;
}

.catalog-card p {
  color: #52606d;
  line-height: 1.5;
}

.drop-zone {
  display: grid;
  place-items: center;
  min-height: 130px;
  padding: 20px;
  border: 2px dashed #9fb3c8;
  border-radius: 8px;
  background: #f8fafc;
  color: #102a43;
  cursor: pointer;
  text-align: center;
}

.drop-zone.is-dragging {
  background: #e8fff1;
  border-color: #2f855a;
}

input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 18px 0;
}

label {
  display: grid;
  gap: 6px;
  color: #102a43;
  font-weight: 800;
}

select,
input,
textarea {
  box-sizing: border-box;
  border: 1px solid #bcccdc;
  border-radius: 6px;
  padding: 9px 10px;
  font: inherit;
}

textarea {
  width: 100%;
  min-height: 160px;
  resize: vertical;
  font-family: "Courier New", monospace;
}

button,
.download-link {
  border: 0;
  border-radius: 6px;
  background: #004085;
  color: #fff;
  cursor: pointer;
  font-weight: 900;
  padding: 9px 12px;
  text-decoration: none;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0;
}

canvas {
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid #d9e2ec;
  border-radius: 8px;
  background: #f8fafc;
}

.output,
pre {
  min-height: 86px;
  margin: 12px 0;
  padding: 12px;
  border-radius: 8px;
  background: #102a43;
  color: #d9f99d;
  overflow: auto;
  white-space: pre-wrap;
  font-family: "Courier New", monospace;
}

.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 10px;
  padding: 12px;
  border-radius: 8px;
  background: #f8fafc;
  border-left: 4px solid #2f855a;
}

.result-row strong,
.result-row span {
  display: block;
}

.result-row span {
  color: #52606d;
  font-size: 0.92rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
}

.stats span {
  display: grid;
  gap: 4px;
  padding: 10px;
  border-radius: 8px;
  background: #f8fafc;
  color: #52606d;
}

.stats strong {
  color: #102a43;
}

@media (max-width: 640px) {
  .topline {
    align-items: flex-start;
    flex-direction: column;
  }

  .result-row {
    align-items: flex-start;
    flex-direction: column;
  }
}