/* ============================================
   Whitepaper Page — Overrides for article.css
   論文としての密度を上げる。ブログより詰める。
   ============================================ */

/* --- セクション間の余白を詰める --- */
.article-page .article-body section {
  margin-bottom: 2rem;
}

.article-page .article-body h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.article-page .article-body h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.8rem;
}

.article-page .article-body p {
  margin-bottom: 0.8rem;
  line-height: 2;
}

/* --- 図表（pre）のスマホ対応 --- */
.article-page .article-body pre {
  margin: 1.5rem 0;
  padding: 1.2rem;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(201, 169, 110, 0.1);
  border-radius: 2px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  font-family: 'Source Code Pro', 'Courier New', monospace;
  font-size: 0.75rem;
  line-height: 1.5;
  color: rgba(232, 228, 223, 0.85);
  white-space: pre;
  word-wrap: normal;
}

/* --- テーブルのスマホ対応 --- */
.article-page .article-body table {
  width: 100%;
  margin: 1rem 0;
  border-collapse: collapse;
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.article-page .article-body thead,
.article-page .article-body tbody,
.article-page .article-body tr {
  display: table;
  width: 100%;
  table-layout: fixed;
}

.article-page .article-body th {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gold);
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--gold);
  letter-spacing: 0.05em;
}

.article-page .article-body td {
  font-family: 'Noto Serif JP', serif;
  font-size: 0.85rem;
  color: rgba(232, 228, 223, 0.85);
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid rgba(201, 169, 110, 0.1);
  line-height: 1.7;
}

/* --- 図のキャプション --- */
.article-page .article-body .formula-inline {
  text-align: center;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--gold);
  margin-top: -0.5rem;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

/* --- コードのインライン表記 --- */
.article-page .article-body code {
  font-family: 'Source Code Pro', 'Courier New', monospace;
  font-size: 0.85em;
  color: var(--gold);
  background: rgba(201, 169, 110, 0.08);
  padding: 0.15em 0.4em;
  border-radius: 2px;
}

.article-page .article-body pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
}

/* --- リストの余白を詰める --- */
.article-page .article-body ul,
.article-page .article-body ol {
  margin: 0.5rem 0 1rem 1.5rem;
}

.article-page .article-body li {
  margin-bottom: 0.3rem;
  line-height: 1.9;
}

/* --- blockquoteの余白 --- */
.article-page .article-body blockquote {
  margin: 1.5rem 0;
}

/* --- スマホ対応 --- */
@media (max-width: 768px) {
  .article-page .article-body section {
    margin-bottom: 1.5rem;
  }

  .article-page .article-body h2 {
    margin-top: 2rem;
    font-size: 1.2rem;
  }

  .article-page .article-body h3 {
    font-size: 1rem;
  }

  .article-page .article-body pre {
    font-size: 0.6rem;
    padding: 0.8rem;
    line-height: 1.4;
  }

  .article-page .article-body table {
    font-size: 0.8rem;
  }

  .article-page .article-body th,
  .article-page .article-body td {
    padding: 0.5rem;
    font-size: 0.78rem;
  }

  .article-page .article-body blockquote {
    padding: 1rem;
    font-size: 0.9rem;
  }
}

/* ============================================
   Figures — CSS Diagrams
   ============================================ */

/* --- 共通: 図コンテナ --- */
.wp-fig {
  margin: 2rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.wp-fig-caption {
  text-align: center;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--gold);
  margin-top: 1rem;
  letter-spacing: 0.05em;
}

/* --- 共通: ボックス --- */
.wp-fig-box {
  width: 100%;
  max-width: 540px;
  padding: 1.2rem 1.5rem;
  border: 1px solid rgba(201, 169, 110, 0.4);
  background: rgba(0, 0, 0, 0.3);
}

.wp-fig-box-title {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.wp-fig-box-subtitle {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  color: var(--gray-light);
  margin-bottom: 0.6rem;
  letter-spacing: 0.05em;
}

.wp-fig-box p,
.wp-fig-box li {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  line-height: 1.7;
  color: rgba(232, 228, 223, 0.8);
  margin-bottom: 0.2rem;
}

/* --- 共通: 矢印 --- */
.wp-fig-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.4rem 0;
  color: var(--gold);
}

.wp-fig-arrow-line {
  width: 1px;
  height: 16px;
  background: var(--gold);
}

.wp-fig-arrow-head {
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--gold);
}

.wp-fig-arrow-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-top: 0.2rem;
  margin-bottom: 0.2rem;
}

/* --- 図1: 3層構造 --- */
.wp-fig-layers .wp-fig-box {
  text-align: left;
}

/* --- 図2: 実装アーキテクチャ（ツリー） --- */
.wp-fig-arch {
  align-items: flex-start;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  padding: 1.5rem;
  border: 1px solid rgba(201, 169, 110, 0.15);
  background: rgba(0, 0, 0, 0.3);
}

.wp-fig-arch .wp-arch-level {
  width: 100%;
  padding-left: 0;
}

.wp-fig-arch .wp-arch-level-1 {
  padding-left: 0;
}

.wp-fig-arch .wp-arch-level-2 {
  padding-left: 1.5rem;
  border-left: 1px solid rgba(201, 169, 110, 0.3);
  margin-left: 0.5rem;
}

.wp-fig-arch .wp-arch-level-3 {
  padding-left: 3rem;
  border-left: 1px solid rgba(201, 169, 110, 0.15);
  margin-left: 2rem;
}

.wp-fig-arch .wp-arch-item {
  font-family: 'Source Code Pro', monospace;
  font-size: 0.78rem;
  color: rgba(232, 228, 223, 0.85);
  line-height: 1.8;
  padding: 0.15rem 0;
}

.wp-fig-arch .wp-arch-item strong {
  color: var(--gold);
  font-weight: 500;
}

.wp-fig-arch .wp-arch-item .wp-arch-comment {
  color: var(--gray);
  font-size: 0.7rem;
}

.wp-fig-arch .wp-arch-arrow {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  color: var(--gold);
  padding: 0.3rem 0 0.3rem 0.5rem;
  letter-spacing: 0.05em;
}

/* --- 図3: E2Eフロー --- */
.wp-fig-flow .wp-fig-box {
  position: relative;
}

.wp-fig-flow .wp-flow-phase {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  opacity: 0.8;
}

.wp-fig-flow .wp-fig-box p {
  font-size: 0.78rem;
  margin-bottom: 0.15rem;
}

.wp-fig-flow .wp-flow-indent {
  padding-left: 1rem;
  border-left: 1px solid rgba(201, 169, 110, 0.2);
  margin: 0.3rem 0;
}

.wp-fig-flow .wp-flow-result {
  margin-top: 0.4rem;
  padding-top: 0.4rem;
  border-top: 1px solid rgba(201, 169, 110, 0.1);
  font-weight: 500;
}

/* --- 図4: Before/After 比較 --- */
.wp-fig-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  max-width: 600px;
  margin: 2rem auto;
}

.wp-fig-compare .wp-compare-col {
  text-align: center;
}

.wp-fig-compare .wp-compare-title {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(201, 169, 110, 0.3);
}

.wp-fig-compare .wp-compare-flow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: rgba(232, 228, 223, 0.8);
  line-height: 1.8;
  margin-bottom: 0.8rem;
  text-align: left;
}

.wp-fig-compare .wp-compare-box {
  padding: 0.8rem;
  border: 1px solid rgba(201, 169, 110, 0.3);
  background: rgba(0, 0, 0, 0.3);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: rgba(232, 228, 223, 0.8);
  line-height: 1.6;
  margin-bottom: 0.6rem;
}

.wp-fig-compare .wp-compare-result {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.1em;
}

.wp-fig-compare .wp-compare-result-bad {
  color: rgba(232, 228, 223, 0.5);
}

.wp-fig-compare .wp-compare-result-good {
  color: var(--gold);
}

/* --- 図のスマホ対応 --- */
@media (max-width: 768px) {
  .wp-fig-box {
    padding: 1rem;
  }

  .wp-fig-box-title {
    font-size: 0.7rem;
  }

  .wp-fig-box p,
  .wp-fig-box li {
    font-size: 0.75rem;
  }

  .wp-fig-compare {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .wp-fig-arch .wp-arch-item {
    font-size: 0.7rem;
  }

  .wp-fig-flow .wp-fig-box p {
    font-size: 0.72rem;
  }
}

@media (max-width: 480px) {
  .article-page .article-body pre {
    font-size: 0.5rem;
    padding: 0.6rem;
  }

  .article-page .article-body thead,
  .article-page .article-body tbody,
  .article-page .article-body tr {
    display: table;
    width: 100%;
    table-layout: auto;
  }
}