:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --line: #d1d5db;
  --text: #1f2937;
  --primary: #2563eb;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", sans-serif;
}

.container {
  max-width: 1100px;
  margin: 24px auto;
  padding: 0 16px 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.wide {
  grid-column: 1 / -1;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 600;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px;
}

fieldset {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.checks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 10px;
}


.checks .check-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  line-height: 1.4;
}

.checks .check-item span {
  display: inline-block;
}

.checks .check-item input[type="checkbox"] {
  margin: 0;
}

.buttons {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

button {
  border: none;
  border-radius: 6px;
  padding: 10px 14px;
  background: var(--primary);
  color: #ffffff;
  cursor: pointer;
}

button.sub {
  background: #6b7280;
}

.status {
  min-height: 1.2em;
}

.note {
  font-size: 0.92rem;
}

#output {
  width: 100%;
}

@media (max-width: 900px) {
  .grid,
  .checks {
    grid-template-columns: 1fr;
  }
}