.ps-wrap {
  max-width: 900px;
  margin: 0 auto;
  font-family: "Segoe UI", Arial, sans-serif;
  --ps-btn-color: #04a6a4;
  --ps-btn-hover-color: #05918f;
  --ps-btn-radius: 10px;
}
.ps-header {
  text-align: center;
  margin: 0 0 16px;
}
.ps-header h2 {
  margin: 0 0 8px;
  text-transform: uppercase;
  color: #d8243a;
}
.ps-header p {
  margin: 0;
  color: #444;
}
.ps-score {
  display: flex;
  justify-content: center;
  gap: 16px;
  font-weight: 700;
  color: #111827;
  margin: 0 0 12px;
}
.ps-sheet {
  background: #fff;
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.ps-item {
  border: 1px solid #d6d6d6;
  border-radius: 12px;
  padding: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 12px;
}
.ps-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.ps-first {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 10px;
  border: 3px solid var(--ps-btn-color);
  border-radius: var(--ps-btn-radius);
  text-align: center;
}
.ps-image-wrap {
  display: flex;
  justify-content: center;
}
.ps-image {
  width: 118px;
  height: 118px;
  object-fit: contain;
  border: none;
  border-radius: 0;
  background: transparent;
  display: block;
}
.ps-options-wrap {
  display: flex;
  justify-content: center;
}
.ps-options {
  display: grid;
  grid-template-columns: repeat(2, 72px);
  row-gap: 18px;
  column-gap: 10px;
  justify-content: center;
}
.ps-option {
  font-size: 22px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 4px;
  border: 2px solid var(--ps-btn-color);
  width: 72px;
  height: 44px;
  min-width: 72px;
  min-height: 44px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  text-align: center;
  border-radius: var(--ps-btn-radius);
  overflow: hidden;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease, transform 120ms ease;
}
.ps-option:hover {
  background: #e0f2ff;
  border-color: var(--ps-btn-color);
  transform: translateY(-1px);
}
.ps-option.is-correct {
  background: #22c55e;
  border-color: #16a34a;
  color: #fff;
}
.ps-option.is-wrong {
  background: #ef4444;
  border-color: #dc2626;
  color: #fff;
}
.ps-item.is-locked .ps-option {
  pointer-events: none;
  opacity: 0.55;
}
.ps-item.is-locked .ps-option.is-correct {
  opacity: 1;
}
.ps-controls {
  margin: 16px 0 0;
  text-align: center;
}
.ps-next,
.ps-refresh {
  padding: 10px 16px;
  border: 2px solid var(--ps-btn-color);
  background: var(--ps-btn-color);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  border-radius: var(--ps-btn-radius);
  transition: background 120ms ease, border-color 120ms ease;
}
.ps-next {
  display: none;
}
.ps-next.is-visible {
  display: inline-block;
}
.ps-refresh {
  margin-left: 8px;
}
.ps-next:hover,
.ps-refresh:hover {
  background: var(--ps-btn-hover-color);
  border-color: var(--ps-btn-hover-color);
}
@media (max-width: 720px) {
  .ps-sheet {
    grid-template-columns: 1fr;
  }
  .ps-item {
    grid-template-columns: 1fr;
  }
}