.science-quiz-app {
  background: #efe6d4 !important;
  color: #1f1a14;
}

.science-quiz-app .skip-link,
.science-quiz-app .scroll-progress,
.science-quiz-app .site-description,
.science-quiz-app .menu-toggle,
.science-quiz-app .site-nav,
.science-quiz-app .site-footer {
  display: none !important;
}

.science-quiz-app .site-header-shell {
  background: #efe6d4;
  box-shadow: none;
}

.science-quiz-app .site-header {
  padding: 14px 0 12px;
  background: #efe6d4;
  box-shadow: 0 12px 14px #efe6d4;
}

.science-quiz-app .site-title,
.science-quiz-app .site-title span {
  color: #1f6b4a !important;
  font-size: 1.05rem !important;
  font-weight: 800;
}

.science-quiz-app .site-main.container {
  width: min(1200px, 96%);
  padding: 12px 0 64px;
}

.sq {
  position: relative;
  width: min(640px, 100%);
  margin: 0 auto;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, serif;
}

.sq-kicker {
  margin: 0 0 8px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #1f6b4a;
}

.sq-title {
  margin: 0;
  font-size: 1.9rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.25;
}

.sq-lead {
  margin: 10px 0 24px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.95rem;
  line-height: 1.7;
  color: #53483c;
}

.sq-panel {
  background: #fbf6ec;
  border: 1px solid rgba(31, 26, 20, 0.1);
  border-radius: 18px;
  padding: 22px 20px;
  box-shadow: 0 10px 28px rgba(80, 58, 30, 0.08);
}

.sq-field + .sq-field {
  margin-top: 18px;
}

.sq-label {
  display: block;
  margin-bottom: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  color: #6a5c4c;
}

.sq-chips {
  display: grid;
  gap: 8px;
}

[data-sq-grades] {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

[data-sq-units] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

[data-sq-units] .sq-chip--span,
[data-sq-units] .sq-chip-spacer {
  grid-column: 1 / -1;
}

[data-sq-units] .sq-chip-spacer {
  padding: 10px 8px;
  border: 1px solid transparent;
  font-size: 0.88rem;
  line-height: 1.35;
  font-weight: 700;
  visibility: hidden;
  pointer-events: none;
}

[data-sq-units] .sq-chip-spacer::before {
  content: "\00a0";
}

[data-sq-counts] {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

@media (min-width: 520px) {
  [data-sq-units] {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.sq-chip,
.sq-start,
.sq-next,
.sq-choice {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  border: 1px solid rgba(31, 26, 20, 0.16);
  background: #fff;
  color: #1f1a14;
  cursor: pointer;
}

.sq-chip {
  width: 100%;
  padding: 10px 8px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.35;
  text-align: center;
}

.sq-chip.is-on {
  background: #1f6b4a;
  border-color: #1f6b4a;
  color: #fff;
}

.sq-chip:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.sq-hint {
  margin: 16px 0 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.86rem;
  color: #6a5c4c;
}

.sq-hint:empty {
  display: none;
}

.sq-start,
.sq-next {
  display: block;
  width: 100%;
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 8px;
  background: #1f6b4a;
  border-color: #1f6b4a;
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
}

.sq-start:disabled,
.sq-next:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.sq-progress {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  color: #1f6b4a;
}

.sq-question {
  margin: 0 0 18px;
  font-size: 1.22rem;
  font-weight: 700;
  line-height: 1.65;
}

.sq-choices {
  display: grid;
  gap: 10px;
}

.sq-choice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  text-align: left;
  padding: 14px 16px;
  border-radius: 8px;
  font-size: 1rem;
  line-height: 1.5;
  font-weight: 600;
}

.sq-choice-mark {
  flex: 0 0 auto;
  width: 1.7em;
  font-weight: 800;
  color: #1f6b4a;
}

.sq-choice-text {
  flex: 1 1 auto;
  min-width: 0;
}

.sq-play-stage {
  position: relative;
}

.sq-stamp {
  position: absolute;
  top: 42%;
  left: 50%;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 7.2rem;
  height: 7.2rem;
  margin: 0;
  pointer-events: none;
  font-size: 6.4rem;
  font-weight: 900;
  line-height: 1;
  transform: translate(-50%, -50%) rotate(-14deg) scale(0.55);
  opacity: 0;
}

.sq-stamp[hidden] {
  display: none !important;
}

.sq-stamp.is-ok {
  color: #e11d2e;
}

.sq-stamp.is-ng {
  color: #161616;
  font-size: 5.6rem;
}

.sq-stamp.is-show {
  opacity: 0.92;
  transform: translate(-50%, -50%) rotate(-14deg) scale(1);
  transition: opacity 0.12s ease-out, transform 0.22s cubic-bezier(0.2, 1.5, 0.35, 1);
}

@media (prefers-reduced-motion: reduce) {
  .sq-stamp.is-show {
    transition: none;
    transform: translate(-50%, -50%) rotate(-14deg) scale(1);
  }
}

.sq-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.sq-choice.is-correct {
  background: #d9efe4;
  border-color: #1f6b4a;
}

.sq-choice.is-wrong {
  background: #f6d9d2;
  border-color: #a33b2b;
}

.sq-score {
  margin: 0 0 20px;
  font-size: 2rem;
  font-weight: 900;
}

.sq-review {
  display: grid;
  gap: 18px;
}

.sq-review-item {
  padding-top: 16px;
  border-top: 1px solid rgba(31, 26, 20, 0.12);
}

.sq-review-status {
  margin: 0 0 6px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.82rem;
  font-weight: 800;
}

.sq-review-status.is-ok {
  color: #1f6b4a;
}

.sq-review-status.is-ng {
  color: #a33b2b;
}

.sq-review-q {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.6;
}

.sq-review-choices {
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.94rem;
  line-height: 1.55;
}

.sq-review-choices li {
  padding: 6px 0;
}

.sq-review-choices .is-correct {
  color: #1f6b4a;
  font-weight: 700;
}

.sq-review-choices .is-wrong {
  color: #a33b2b;
}

.sq-ad {
  margin: 20px 0 0;
}

.sq-ad[hidden] {
  display: none !important;
}

.sq-ad--rail {
  display: none;
}

.sq-ad--bottom:not(.is-filled) {
  margin: 0;
  min-height: 0;
}

.sq-ad--bottom:not(.is-filled) .adsbygoogle {
  min-height: 0;
}

@media (min-width: 1100px) {
  .sq-ad--rail {
    display: block;
    position: fixed;
    top: 88px;
    z-index: 80;
    width: 160px;
    margin: 0;
  }

  .sq-ad--rail .adsbygoogle {
    min-height: 600px;
  }

  .sq-ad--left {
    left: max(12px, calc(50% - 320px - 176px));
  }

  .sq-ad--right {
    right: max(12px, calc(50% - 320px - 176px));
  }
}

@media (max-width: 1099px) {
  .science-quiz-app .site-main.container {
    padding-bottom: 24px;
  }

  .sq.has-bottom-ad {
    padding-bottom: 128px;
  }

  .sq-ad--bottom.is-filled {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    margin: 0;
    padding: 8px 12px 12px;
    background: #efe6d4;
    box-shadow: 0 -10px 16px #efe6d4;
  }
}

.sq-home {
  margin: 28px 0 0;
  text-align: center;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.sq-home a {
  color: #1f6b4a;
  font-weight: 700;
}

@media (max-width: 640px) {
  .sq-title {
    font-size: 1.55rem;
  }

  .sq-question {
    font-size: 1.1rem;
  }

  .sq-choice {
    min-height: 48px;
  }
}