/* ============================================================
   index.css — タイピング検定 トップページ専用スタイル
   ============================================================ */

/* ---------- body / layout ---------- */
body.index-page {
  background: var(--washi);
  margin: 0;
  padding: 0;
}

/* ---------- ヒーローバナー ---------- */
.hero {
  background: var(--indigo);
  color: #e8e8f0;
  padding: 0;
}
.hero-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: flex;
  align-items: center;
  gap: 40px;
}
.hero-text { flex: 1; min-width: 0; }
.hero-eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--miss-amber);
  text-transform: uppercase;
  margin: 0 0 10px;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
  margin: 0 0 16px;
}
.hero-sub {
  font-size: 0.92rem;
  line-height: 1.8;
  color: #b0b8cc;
  margin: 0;
}
.hero-visual {
  flex: 0 0 420px;
  max-width: 420px;
}
.hero-svg {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

/* ---------- タブナビ ---------- */
.hero-tabs {
  display: flex;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
  gap: 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-tab {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: #8899bb;
  font-family: inherit;
  font-size: 0.9rem;
  padding: 14px 22px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.hero-tab:hover { color: #d0d8e8; }
.hero-tab.active {
  color: #fff;
  border-bottom-color: var(--miss-amber);
}

/* ---------- メインコンテンツ ---------- */
.index-main {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---------- コード入力カード ---------- */
.code-entry-card { margin-bottom: 28px; }
.code-input-large {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  letter-spacing: 0.15em;
  text-align: center;
  max-width: 320px;
}
.btn-large { font-size: 1rem; padding: 14px 32px; }
.code-entry-note {
  font-size: 0.82rem;
  color: var(--indigo-soft);
  margin: 6px 0 0;
}
.link-btn {
  background: none;
  border: none;
  color: var(--vermillion);
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  padding: 0;
  text-decoration: underline;
}

/* ---------- アピールグリッド ---------- */
.appeal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}
.appeal-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 18px;
}
.appeal-icon { font-size: 2rem; margin-bottom: 10px; }
.appeal-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--indigo);
  margin: 0 0 8px;
}
.appeal-card p {
  font-size: 0.84rem;
  color: var(--indigo-soft);
  line-height: 1.7;
  margin: 0;
}

/* ---------- 採点基準インライン表示（検定一覧タブ） ---------- */
.grade-criteria-inline {
  display: block;
  font-size: 0.78rem;
  color: var(--indigo-soft);
  margin-top: 4px;
  font-family: var(--font-mono);
}

/* ---------- 受験方法グリッド ---------- */
.exam-method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 4px;
}
.exam-method-card {
  background: var(--washi-deep);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 16px;
  text-align: center;
}
.exam-method-icon { font-size: 2.2rem; margin-bottom: 10px; }
.exam-method-card h3 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--indigo);
  margin: 0 0 8px;
}
.exam-method-card p {
  font-size: 0.82rem;
  color: var(--indigo-soft);
  line-height: 1.7;
  margin: 0 0 12px;
}
.btn-sm { font-size: 0.82rem; padding: 6px 14px; }

/* ---------- 受験に必要なもの ---------- */
.req-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.req-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--indigo);
}
.req-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 1px; }
.req-list small { color: var(--indigo-soft); }

/* ---------- 本人確認 ---------- */
.id-list {
  margin: 0 0 12px 1.2em;
  padding: 0;
  color: var(--indigo);
  font-size: 0.92rem;
  line-height: 2;
}
.id-note {
  font-size: 0.84rem;
  color: var(--indigo-soft);
  background: rgba(184,146,60,0.10);
  border: 1px solid rgba(184,146,60,0.35);
  border-radius: 8px;
  padding: 10px 14px;
  margin: 0;
}

/* ---------- サイトフッター ---------- */
.site-footer-main {
  text-align: center;
  padding: 20px 24px;
  font-size: 0.78rem;
  color: var(--indigo-soft);
  border-top: 1px solid var(--line);
  background: var(--washi-deep);
}

/* ---------- レスポンシブ ---------- */
@media (max-width: 768px) {
  .hero-inner { flex-direction: column; gap: 24px; padding: 32px 16px 24px; }
  .hero-visual { flex: none; max-width: 100%; }
  .hero-tabs { overflow-x: auto; padding: 0 16px; }
  .hero-tab { padding: 12px 14px; font-size: 0.82rem; }
  .index-main { padding: 20px 16px 40px; }
  .appeal-grid { grid-template-columns: 1fr; }
  .exam-method-grid { grid-template-columns: 1fr; }
}