* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f6f8;
  color: #1f2937;
}

.container {
  max-width: 980px;
  margin: 24px auto;
  padding: 0 16px 32px;
}

h1 {
  margin: 0 0 8px;
}

.hint {
  margin: 0 0 16px;
  color: #4b5563;
}

.card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
}

.mode-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
  align-items: center;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
}

label.full {
  grid-column: 1 / -1;
}

input[type="text"],
input[type="number"],
input[type="file"],
select {
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  padding: 8px;
}

button {
  border: none;
  border-radius: 10px;
  padding: 12px 16px;
  background: #2563eb;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

button:disabled {
  background: #94a3b8;
  cursor: not-allowed;
}

#status-log {
  margin: 0;
  white-space: pre-wrap;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 8px;
  padding: 12px;
  min-height: 90px;
}

#result-image {
  max-width: 100%;
  margin-top: 8px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  display: none;
}