body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  flex: 1;
  max-width: 48rem;
  width: 100%;
  margin: 0 auto;
  padding: 4rem 1.5rem 3rem;
}

/* スタート画面 */
.title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--wa-orange-dark);
  margin-bottom: 1.5rem;
  text-align: center;
}

.lead {
  font-size: 1rem;
  color: var(--wa-ink-light);
  margin-bottom: 0.5rem;
  text-align: center;
}

.sub {
  font-size: 0.85rem;
  color: var(--wa-gray);
  margin-bottom: 2.5rem;
  text-align: center;
}

/* 質問画面 */
.progress {
  margin-bottom: 2rem;
  text-align: center;
}

.progress span {
  font-size: 0.85rem;
  color: var(--wa-gray);
  display: block;
  margin-bottom: 0.5rem;
}

.progress-bar {
  width: 100%;
  height: 4px;
  background-color: var(--wa-gray-light);
  border-radius: 2px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background-color: var(--wa-orange);
  width: 0;
  transition: width 0.3s ease;
}

.question-text {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1.8rem;
  line-height: 1.6;
}

.choices { list-style: none; }

.choices li {
  margin-bottom: 0.8rem;
}

.choices button {
  width: 100%;
  padding: 1rem 1.2rem;
  background-color: var(--wa-white);
  color: var(--wa-ink);
  border: 1px solid var(--wa-gray-light);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.choices button:hover {
  border-color: var(--wa-orange);
  background-color: var(--wa-orange-pale);
}

/* 結果画面 */
.result-label {
  text-align: center;
  font-size: 1rem;
  color: var(--wa-ink-light);
  margin-bottom: 0.5rem;
}

.result-score {
  text-align: center;
  font-size: 4.5rem;
  font-weight: 700;
  color: var(--wa-orange);
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.result-score .percent {
  font-size: 2rem;
  margin-left: 0.2rem;
}

.result-comment {
  text-align: center;
  font-size: 1rem;
  color: var(--wa-ink);
  margin-bottom: 2.5rem;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .title { font-size: 2.2rem; }
  .question-text { font-size: 1.35rem; }
  .result-score { font-size: 5.5rem; }
}