.program-mode-picker {
  width: min(100%, 680px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.program-mode {
  min-height: 78px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.program-mode strong,
.program-mode span {
  display: block;
}

.program-mode strong {
  margin-bottom: 4px;
  font-size: 14px;
}

.program-mode span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.program-mode.active {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.programming-explainer {
  width: min(100%, 680px);
  margin: 0 auto 24px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface-soft);
}

.programming-explainer strong,
.programming-explainer span {
  display: block;
}

.programming-explainer strong {
  margin-bottom: 4px;
}

.programming-explainer span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.program-input-grid {
  width: min(100%, 680px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 1fr));
  gap: 18px;
}

.program-input-grid label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.program-input-grid input {
  width: 100%;
  height: 50px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 18px;
  font-weight: 700;
}

.program-input-grid [hidden] {
  display: none !important;
}

.program-sequence-list {
  margin: 12px 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface-soft);
}

.program-sequence-list p {
  margin: 0 0 8px;
}

.program-sequence-list p:last-child {
  margin-bottom: 0;
}

.condition-card {
  margin: 12px 0;
  padding: 14px;
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: var(--surface-soft);
  font-weight: 800;
}

.word-card {
  margin: 0 0 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface-soft);
}

.word-card strong {
  display: block;
  margin-bottom: 4px;
}

.word-card p {
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.program-code {
  margin: 14px 0 0;
  padding: 16px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.65;
  white-space: pre;
}

.sequence-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.sequence-value {
  min-width: 48px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  font-weight: 900;
  text-align: center;
}

.sequence-arrow {
  color: var(--muted);
  font-weight: 900;
}

@media (hover: hover) and (pointer: fine) {
  .program-mode:hover {
    border-color: var(--accent);
  }
}

@media (max-width: 700px) {
  .program-mode-picker,
  .program-input-grid {
    grid-template-columns: 1fr;
  }

  .program-input-grid > div {
    width: min(100%, 280px);
    margin: 0 auto;
  }
}