/* ドキュメントページ共通スタイル */
/* ゲーム本体のダーク系カラースキームを踏襲 */

:root {
  --doc-bg: #0a0e17;
  --doc-bg-alt: #0f1520;
  --doc-surface: #141c2b;
  --doc-border: #1e2a3a;
  --doc-text: #e0e6f0;
  --doc-text-dim: #8899aa;
  --doc-primary: #4ecdc4;
  --doc-accent: #ff6b6b;
  --doc-warning: #ffd93d;
  --doc-link: #4ecdc4;
  --doc-link-hover: #6ef0e6;
  --doc-card-bg: #111827;
  --doc-table-header: #1a2435;
  --doc-table-stripe: #0d1420;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background-color: var(--doc-bg);
  color: var(--doc-text);
  font-family: 'Segoe UI', 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  line-height: 1.7;
  min-height: 100vh;
}

/* === ナビゲーションヘッダー === */
.doc-nav {
  background: var(--doc-surface);
  border-bottom: 1px solid var(--doc-border);
  padding: 0.8rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.doc-nav-back {
  color: var(--doc-primary);
  text-decoration: none;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
}

.doc-nav-back:hover { color: var(--doc-link-hover); }

.doc-nav-links {
  display: flex;
  gap: 1rem;
  margin-left: auto;
}

.doc-nav-links a {
  color: var(--doc-text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  transition: all 0.2s;
}

.doc-nav-links a:hover { color: var(--doc-text); background: var(--doc-border); }
.doc-nav-links a.active { color: var(--doc-primary); background: rgba(78, 205, 196, 0.1); }

/* === ページヘッダー === */
.doc-header {
  text-align: center;
  padding: 3rem 2rem 2rem;
  background: linear-gradient(180deg, var(--doc-surface) 0%, var(--doc-bg) 100%);
}

.doc-header h1 {
  font-size: 2.2rem;
  color: var(--doc-primary);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.doc-header .doc-subtitle {
  color: var(--doc-text-dim);
  font-size: 1rem;
}

/* === コンテンツエリア === */
.doc-content {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* === セクション === */
.doc-section {
  margin-bottom: 3rem;
}

.doc-section h2 {
  font-size: 1.5rem;
  color: var(--doc-primary);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--doc-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.doc-section h3 {
  font-size: 1.15rem;
  color: var(--doc-text);
  margin: 1.5rem 0 0.8rem;
}

.doc-section p {
  margin-bottom: 1rem;
  color: var(--doc-text);
}

/* === テーブル === */
.doc-table-wrapper {
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.doc-table th {
  background: var(--doc-table-header);
  color: var(--doc-primary);
  font-weight: 600;
  padding: 0.7rem 0.8rem;
  text-align: left;
  border-bottom: 2px solid var(--doc-border);
  white-space: nowrap;
}

.doc-table td {
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--doc-border);
  vertical-align: middle;
}

.doc-table tr:nth-child(even) td {
  background: var(--doc-table-stripe);
}

.doc-table tr:hover td {
  background: rgba(78, 205, 196, 0.05);
}

/* === カードグリッド === */
.doc-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
  margin-bottom: 1.5rem;
}

.doc-card {
  background: var(--doc-card-bg);
  border: 1px solid var(--doc-border);
  border-radius: 8px;
  padding: 1.2rem;
  transition: border-color 0.2s;
}

.doc-card:hover {
  border-color: var(--doc-primary);
}

.doc-card-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
}

.doc-card-header img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  image-rendering: auto;
}

.doc-card-header h4 {
  font-size: 1.05rem;
  color: var(--doc-text);
}

.doc-card-header .doc-card-sub {
  color: var(--doc-text-dim);
  font-size: 0.8rem;
}

.doc-card-body {
  font-size: 0.88rem;
  color: var(--doc-text-dim);
  line-height: 1.6;
}

.doc-card-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.6rem;
}

.doc-stat {
  background: var(--doc-bg);
  border: 1px solid var(--doc-border);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--doc-text-dim);
}

.doc-stat span {
  color: var(--doc-primary);
  font-weight: 600;
}

/* === 画像ギャラリー === */
.doc-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.doc-gallery-item {
  background: var(--doc-card-bg);
  border: 1px solid var(--doc-border);
  border-radius: 6px;
  padding: 0.8rem;
  text-align: center;
}

.doc-gallery-item img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  margin-bottom: 0.4rem;
}

.doc-gallery-item .doc-gallery-label {
  font-size: 0.75rem;
  color: var(--doc-text-dim);
  word-break: break-all;
}

/* === コードブロック / プレ === */
.doc-code {
  background: var(--doc-bg-alt);
  border: 1px solid var(--doc-border);
  border-radius: 6px;
  padding: 1rem 1.2rem;
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.85rem;
  color: var(--doc-text-dim);
  overflow-x: auto;
  line-height: 1.5;
  margin-bottom: 1.5rem;
  white-space: pre;
}

/* === フロー図 === */
.doc-flow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.doc-flow-step {
  background: var(--doc-card-bg);
  border: 1px solid var(--doc-border);
  border-radius: 6px;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  color: var(--doc-text);
  text-align: center;
}

.doc-flow-step.active {
  border-color: var(--doc-primary);
  color: var(--doc-primary);
}

.doc-flow-arrow {
  color: var(--doc-text-dim);
  font-size: 1.2rem;
}

/* === ハイライトボックス === */
.doc-highlight {
  background: rgba(78, 205, 196, 0.08);
  border-left: 3px solid var(--doc-primary);
  padding: 1rem 1.2rem;
  border-radius: 0 6px 6px 0;
  margin-bottom: 1.5rem;
  font-size: 0.92rem;
}

.doc-highlight.warning {
  background: rgba(255, 107, 107, 0.08);
  border-left-color: var(--doc-accent);
}

.doc-highlight.info {
  background: rgba(255, 217, 61, 0.08);
  border-left-color: var(--doc-warning);
}

/* === 数式・計算式 === */
.doc-formula {
  background: var(--doc-card-bg);
  border: 1px solid var(--doc-border);
  border-radius: 6px;
  padding: 1rem;
  font-family: 'Consolas', monospace;
  font-size: 0.95rem;
  color: var(--doc-primary);
  text-align: center;
  margin-bottom: 1rem;
}

/* === バッジ === */
.doc-badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 600;
}

.doc-badge.attack { background: rgba(255, 107, 107, 0.2); color: var(--doc-accent); }
.doc-badge.defense { background: rgba(78, 205, 196, 0.2); color: var(--doc-primary); }
.doc-badge.support { background: rgba(255, 217, 61, 0.2); color: var(--doc-warning); }
.doc-badge.passive { background: rgba(136, 153, 170, 0.2); color: var(--doc-text-dim); }
.doc-badge.active { background: rgba(78, 205, 196, 0.2); color: var(--doc-primary); }

/* === 武装・小さめカード === */
.doc-card-sm {
  background: var(--doc-card-bg);
  border: 1px solid var(--doc-border);
  border-radius: 6px;
  padding: 0.8rem;
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
}

.doc-card-sm img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  flex-shrink: 0;
}

.doc-card-sm-body h4 {
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}

.doc-card-sm-body p {
  font-size: 0.82rem;
  color: var(--doc-text-dim);
  margin-bottom: 0.3rem;
}

.doc-card-grid-sm {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

/* === フッター === */
.doc-footer {
  text-align: center;
  padding: 2rem;
  color: var(--doc-text-dim);
  font-size: 0.8rem;
  border-top: 1px solid var(--doc-border);
  margin-top: 3rem;
}

.doc-footer a {
  color: var(--doc-primary);
  text-decoration: none;
}

/* === レスポンシブ === */
@media (max-width: 768px) {
  .doc-nav {
    padding: 0.6rem 1rem;
    gap: 0.8rem;
    flex-wrap: wrap;
  }
  .doc-nav-links { margin-left: 0; }
  .doc-header { padding: 2rem 1rem 1.5rem; }
  .doc-header h1 { font-size: 1.6rem; }
  .doc-content { padding: 1.5rem 1rem 3rem; }
  .doc-card-grid { grid-template-columns: 1fr; }
  .doc-card-grid-sm { grid-template-columns: 1fr; }
  .doc-gallery { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); }
  .doc-flow { flex-direction: column; }
  .doc-flow-arrow { transform: rotate(90deg); }
}