/* =========================================================
   共通ベース
========================================================= */
* {
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", "Hiragino Sans", "Meiryo", sans-serif;
  margin: 0;
  padding: 0;
  background-color: #FFFBEA;  /* ペールイエロー */
  color: #333;
}

/* =========================================================
   共通ヘッダー（index / privacy / terms / sitemap）
========================================================= */
.header {
  display: flex;
  align-items: center;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid #ccc;
  background-color: #FFFBEA;
}

.logo {
  width: 70px;
  height: auto;
  margin-right: 1rem;
}

.header-text h1 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 700;
}

.header-text p {
  margin: 0;
  font-size: 0.9rem;
  color: #555;
}

/* TOPリンクを使うページ用（必要なら） */
.top-link {
  margin-left: auto;
  text-decoration: none;
  font-size: 0.9rem;
  color: #1e60a8;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
}
.top-link:hover {
  background-color: #e7f0ff;
}

/* =========================================================
   index.html 用レイアウト
========================================================= */

.main-area {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1rem 2.5rem;
}

/* 中央カード */
.start-panel {
  background: #ffffff;
  border-radius: 16px;
  border: 1px solid #dddddd;
  padding: 1.8rem 2rem 2rem;
  box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.page-title {
  margin: 0 0 0.6rem;
  font-size: 1.7rem;
  font-weight: 700;
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

/* ★ バージョン表示 */
.version-label {
  font-size: 0.8rem;
  color: #666;
  font-weight: 600;
}

.panel-subtitle {
  margin: 0 0 1.3rem;
  font-size: 1.1rem;
  font-weight: 600;
}

/* レベル説明 */
.level-guide {
  margin-bottom: 1.3rem;
  font-size: 0.95rem;
}
.level-guide ul {
  margin: 0.4rem 0 0;
  padding-left: 1.3rem;
}

/* フォーム */
.form-row {
  margin-top: 0.9rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.form-select {
  width: 100%;
  max-width: 380px;
  padding: 0.55rem 0.7rem;
  border-radius: 7px;
  border: 1px solid #bbb;
  font-size: 0.95rem;
}

/* スタートボタン */
.start-button-row {
  margin-top: 1.6rem;
  display: flex;
  justify-content: center;
}

.start-button {
  min-width: 220px;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  background-color: #1976d2;
  color: #ffffff;
  cursor: pointer;
}
.start-button:disabled {
  opacity: 0.5;
  cursor: default;
}
.start-button:not(:disabled):hover {
  opacity: 0.92;
}

/* サイトマップ案内 */
.helper-link {
  margin-top: 1.2rem;
  font-size: 0.9rem;
}
.helper-link a {
  color: #1e60a8;
}

/* アプリ説明カード */
.about-top-section {
  margin-top: 2.2rem;
  background: #ffffff;
  border-radius: 14px;
  border: 1px solid #dddddd;
  padding: 1.4rem 1.6rem;
}

.about-title-top {
  margin: 0 0 0.6rem;
  font-size: 1.2rem;
  font-weight: 700;
}

.about-top-text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* =========================================================
   サイトマップ / 規約 / プライバシー 共通
========================================================= */

.sitemap-wrapper,
.terms-container,
.policy-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.4rem 1rem 2rem;
}

.sitemap-links {
  list-style: none;
  padding: 0;
  margin: 0 0 1.6rem;
}

.sitemap-links li {
  padding: 4px 0;
}

.sitemap-links a {
  color: #1e60a8;
  text-decoration: none;
}
.sitemap-links a:hover {
  text-decoration: underline;
}

/* カテゴリ一覧 2段組み（サイトマップ） */
.category-grid {
  display: flex;
  gap: 2rem;
  margin: 1.2rem 0;
}
.category-column {
  flex: 1;
}
.category-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.category-column li {
  padding: 4px 0;
  font-size: 0.95rem;
  border-bottom: 1px dashed #ccc;
}

/* =========================================================
   フッター（© 強調）
========================================================= */
.site-footer {
  margin-top: 2rem;
  padding: 1.6rem 1rem;
  text-align: center;
  background-color: #FFFBEA;
  color: #d40000;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.8px;
}

.footer-text,
.copyright {
  margin: 0;
}

/* =========================================================
   スマホ向け
========================================================= */
@media (max-width: 600px) {

  .header {
    padding: 0.6rem 0.8rem;
  }

  .logo {
    width: 56px;
    margin-right: 0.7rem;
  }

  .main-area {
    padding: 1.6rem 0.8rem 2.2rem;
  }

  .start-panel {
    padding: 1.4rem 1.1rem 1.6rem;
    border-radius: 14px;
  }

  .page-title {
    font-size: 1.4rem;
    flex-wrap: wrap;
  }

  .panel-subtitle {
    font-size: 1rem;
  }

  .form-select {
    max-width: 100%;
  }

  .about-top-section {
    margin-top: 1.8rem;
    padding: 1.2rem 1.1rem;
  }

  .category-grid {
    flex-direction: column;
  }

  .site-footer {
    font-size: 1.1rem;
    padding: 1.3rem 0.8rem;
  }
}