:root {
  --cs-offcanvas-text: #94a3b8;
  --cs-offcanvas-heading: #e2e8f0;
  --cs-offcanvas-link: #f59e0b;
  --cs-offcanvas-width: 85%;
  --cs-offcanvas-bg: rgba(10, 14, 26, 0.98);
  --cs-viewer-overlay-closed: rgba(5, 10, 20, 0);
  --cs-viewer-overlay-open: rgba(5, 10, 20, 0.5);
  --cs-viewer-glass-bg: rgba(12, 18, 30, 0.88);
  --cs-viewer-glass-border: rgba(var(--color-accent), 0.06);
  --cs-viewer-glass-shadow:
    0 0 60px rgba(0, 0, 0, 0.4),
    0 0 120px rgba(30, 60, 120, 0.1),
    inset 0 0 60px rgba(20, 40, 80, 0.05);
  --cs-viewer-x-handle: rgba(200, 215, 245, 0.7);
  --cs-scrollbar-thumb: #1e293b;
  --cs-md-provenance: rgba(140, 160, 200, 0.4);
  --cs-md-h1: rgba(240, 245, 255, 0.92);
  --cs-md-h1-strong: rgba(240, 245, 255, 0.95);
  --cs-md-h2: rgba(230, 240, 255, 0.88);
  --cs-md-h3: rgba(220, 230, 250, 0.85);
  --cs-md-h4: rgba(210, 225, 245, 0.8);
  --cs-md-link: rgba(var(--color-link), 0.85);
  --cs-md-link-hover: rgba(160, 195, 255, 1);
  --cs-md-quote: rgba(200, 215, 240, 0.7);
  --cs-md-inline-code: rgba(180, 210, 255, 0.85);
  --cs-md-inline-code-bg: rgba(60, 90, 150, 0.12);
  --cs-md-table-head-bg: rgba(40, 60, 100, 0.2);
  --cs-md-table-head-text: rgba(220, 230, 250, 0.9);
  --cs-md-table-cell-text: rgba(200, 215, 240, 0.75);
  --cs-md-strong: rgba(240, 245, 255, 0.95);
  --cs-md-em: rgba(200, 215, 240, 0.8);
  --cs-md-pre-bg: rgba(8, 12, 24, 0.6);
  --cs-md-pdf-link: rgba(160, 185, 240, 0.7);
  --cs-md-pdf-link-hover: rgba(200, 220, 255, 0.9);
  --cs-md-pdf-link-hover-bg: rgba(60, 90, 150, 0.1);
}

.offcanvas-body::-webkit-scrollbar {
  width: 6px;
}

.offcanvas-body::-webkit-scrollbar-track {
  background: transparent;
}

.offcanvas-body::-webkit-scrollbar-thumb {
  background: var(--cs-scrollbar-thumb);
  border-radius: 3px;
}

.offcanvas-kesson {
  --bs-offcanvas-width: var(--cs-offcanvas-width);
  width: var(--cs-offcanvas-width);
  background: var(--cs-offcanvas-bg);
}

.offcanvas-title-spaced {
  letter-spacing: 0.15em;
}

.cursor-pointer {
  cursor: pointer;
}

#lightbox-image {
  max-height: 80vh;
  cursor: pointer;
}

.badge-article-type {
  font-size: 0.80rem;
}

#kesson-viewer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--cs-z-viewer-overlay);
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--cs-viewer-overlay-closed);
  transition: background 0.5s ease;
  cursor: pointer;
}

#kesson-viewer.visible {
  display: flex;
}

#kesson-viewer.open {
  background: var(--cs-viewer-overlay-open);
}

.viewer-glass {
  position: relative;
  width: 90vw;
  max-width: 720px;
  height: 85vh;
  cursor: default;
  overflow: hidden;
  background: var(--cs-viewer-glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--cs-viewer-glass-border);
  border-radius: 3px;
  box-shadow: var(--cs-viewer-glass-shadow);
  opacity: 0;
  transform: scale(0.92) translateY(20px);
  transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

#kesson-viewer.open .viewer-glass {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.viewer-close {
  position: absolute;
  top: 10px;
  right: 12px;
  background: none;
  border: none;
  color: rgba(var(--color-heading), 0.25);
  font-size: 1.4rem;
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.3s;
  z-index: var(--cs-z-ui-low);
}

.viewer-close:hover {
  color: rgba(var(--color-heading), 0.6);
}

.viewer-content {
  width: 100%;
  height: 100%;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.viewer-content iframe {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 3px;
}

.viewer-content--x {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.x-embed-wrap {
  flex: 1;
  display: flex;
  align-items: stretch;
}

.x-embed-wrap .twitter-timeline {
  width: 100%;
}

.x-embed-footer {
  padding: 0.5rem 1rem 0.9rem;
  text-align: center;
  font-size: 0.78rem;
}

.x-embed-handle {
  color: var(--cs-viewer-x-handle);
  font-size: 0.72rem;
  margin-bottom: 0.25rem;
  letter-spacing: 0.04em;
}

.x-embed-footer a {
  color: rgba(var(--color-link), 0.85);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.viewer-content::-webkit-scrollbar {
  width: 3px;
}

.viewer-content::-webkit-scrollbar-track {
  background: transparent;
}

.viewer-content::-webkit-scrollbar-thumb {
  background: rgba(var(--color-accent), 0.12);
  border-radius: 2px;
}

.md-article {
  padding: 2.5rem 2rem 3rem;
  color: rgba(var(--color-highlight), 0.85);
  line-height: 1.85;
  font-size: 0.92rem;
}

.md-provenance {
  font-size: 0.80rem;
  color: var(--cs-md-provenance);
  margin-bottom: 1.5rem;
  letter-spacing: 0.03em;
}

.md-body p {
  margin: 0 0 1.2em;
}

/* 記録の窓の中のリンク（#111）。長い URL が幅からはみ出さないように折り返す。 */
.md-body a {
    color: rgb(var(--ds-color-link, 130, 170, 255));
    text-decoration: underline;
    text-underline-offset: 2px;
    overflow-wrap: anywhere;
}

.md-body h1 {
  font-size: 1.2rem;
  color: var(--cs-md-h1);
  margin: 2rem 0 0.8rem;
  line-height: 1.4;
  letter-spacing: normal;
  text-shadow: none;
  border: none;
  page-break-before: unset;
}

.md-body h1:first-child {
  font-size: 1.3rem;
  color: var(--cs-md-h1-strong);
  margin-top: 0;
  margin-bottom: 1.2rem;
}

.md-body h2 {
  font-size: 1.05rem;
  color: var(--cs-md-h2);
  margin: 1.8rem 0 0.7rem;
  line-height: 1.4;
}

.md-body h3 {
  font-size: 0.95rem;
  color: var(--cs-md-h3);
  margin: 1.4rem 0 0.5rem;
}

.md-body h4 {
  font-size: 0.9rem;
  color: var(--cs-md-h4);
  margin: 1.2rem 0 0.4rem;
}

.md-body hr {
  border: none;
  border-top: 1px solid rgba(var(--color-accent), 0.08);
  margin: 2rem 0;
}

.md-body blockquote {
  border-left: 2px solid rgba(var(--color-accent), 0.15);
  padding-left: 1em;
  margin: 1em 0;
  color: var(--cs-md-quote);
  font-style: italic;
}

.md-body a {
  color: rgba(var(--color-link), 0.85);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.md-body a:hover {
  color: var(--cs-md-link-hover);
}

.md-body strong {
  color: var(--cs-md-strong);
  font-weight: 600;
}

.md-body em {
  color: var(--cs-md-em);
}

.md-body pre {
  background: var(--cs-md-pre-bg);
  border: 1px solid rgba(var(--color-accent), 0.08);
  border-radius: 3px;
  padding: 1em 1.2em;
  margin: 1.2em 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  line-height: 1.5;
}

.md-body pre code {
  font-family: var(--ds-font-mono-ui);
  font-size: 0.82rem;
  color: rgba(var(--color-sub-text), 0.8);
  background: none;
  padding: 0;
  border: none;
  border-radius: 0;
  white-space: pre;
}

.md-body code {
  font-family: var(--ds-font-mono-ui);
  font-size: 0.85em;
  color: var(--cs-md-inline-code);
  background: var(--cs-md-inline-code-bg);
  padding: 0.15em 0.4em;
  border-radius: 2px;
}

.md-body ul,
.md-body ol {
  padding-left: 1.5em;
  margin: 0.8em 0;
}

.md-body li {
  margin-bottom: 0.4em;
  line-height: 1.7;
}

.md-body li > ul,
.md-body li > ol {
  margin: 0.3em 0;
}

.md-body table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.82rem;
  margin: 1.2em 0;
  overflow-x: auto;
  display: block;
}

.md-body thead {
  border-bottom: 1px solid rgba(var(--color-accent), 0.15);
}

.md-body th,
.md-body td {
  padding: 0.5em 0.8em;
  border: 1px solid rgba(var(--color-accent), 0.08);
  text-align: left;
}

.md-body th {
  background: var(--cs-md-table-head-bg);
  color: var(--cs-md-table-head-text);
  font-weight: 500;
}

.md-body td {
  color: var(--cs-md-table-cell-text);
}

.md-body img {
  max-width: 100%;
  height: auto;
  border-radius: 2px;
  margin: 1em 0;
}

.md-footer {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(var(--color-accent), 0.06);
  text-align: center;
}

.md-pdf-link {
  display: inline-block;
  padding: 0.6em 1.5em;
  font-size: 0.78rem;
  color: var(--cs-md-pdf-link);
  border: 1px solid rgba(var(--color-accent), 0.12);
  border-radius: 2px;
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: all 0.3s;
}

.md-pdf-link:hover {
  color: var(--cs-md-pdf-link-hover);
  border-color: rgba(var(--color-accent), 0.25);
  background: var(--cs-md-pdf-link-hover-bg);
}

.md-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.md-loading-dot {
  width: 6px;
  height: 6px;
  background: rgba(var(--color-link), 0.4);
  border-radius: 50%;
  animation: md-pulse 1.2s ease-in-out infinite;
}

@keyframes md-pulse {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.2); }
}

@media (max-width: 600px) {
  .viewer-glass {
    width: 96vw;
    height: 90vh;
    border-radius: 2px;
  }

  .md-article {
    padding: 2rem 1.2rem 2.5rem;
    font-size: 0.88rem;
    line-height: 1.8;
  }

  .md-body h1:first-child {
    font-size: 1.1rem;
  }

  .md-body h1 {
    font-size: 1.05rem;
  }

  .md-body h2 {
    font-size: 0.95rem;
  }

  /* 表は横スクロールさせない（stance 2-7「スマートフォンを考える」・2026-11-10）。
     二列までの表は幅に収めて折り返す。三列以上の表（照合の記録の一面の表など）は、
     行ごとに枠に積み、各セルの上に列の見出しを出す（modal.js の prepareStackedTables が data-label を付ける）。 */
  /* 出典の一覧の長い URL も、枠を横に広げないよう折り返す */
  .md-body p,
  .md-body li,
  .md-body blockquote {
    overflow-wrap: anywhere;
  }

  .md-body table {
    display: table;
    overflow-x: visible;
    font-size: 0.8rem;
  }

  .md-body th,
  .md-body td {
    padding: 0.45em 0.6em;
    overflow-wrap: anywhere;
  }

  .md-body table.md-table-stack {
    display: block;
    border: 0;
  }

  /* 列の見出しは各セルの上に出すので、見出しの行は畳む */
  .md-body table.md-table-stack thead {
    display: none;
  }

  .md-body table.md-table-stack tbody,
  .md-body table.md-table-stack tr,
  .md-body table.md-table-stack td {
    display: block;
    width: auto;
  }

  .md-body table.md-table-stack tr {
    margin: 0 0 0.9em;
    border: 1px solid rgba(var(--color-accent), 0.12);
    border-radius: 2px;
  }

  .md-body table.md-table-stack td {
    border: 0;
    border-top: 1px solid rgba(var(--color-accent), 0.06);
    padding: 0.5em 0.75em;
  }

  .md-body table.md-table-stack td:first-child {
    border-top: 0;
    background: var(--cs-md-table-head-bg);
    color: var(--cs-md-table-head-text);
    font-weight: 500;
  }

  .md-body table.md-table-stack td:empty {
    display: none;
  }

  .md-body table.md-table-stack td[data-label]::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 0.2em;
    font-size: 0.72rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--cs-md-table-head-text);
    opacity: 0.75;
  }

  .md-body table.md-table-stack td:first-child[data-label]::before {
    display: none;
  }

  .md-body pre {
    padding: 0.8em;
  }

  .md-body pre code {
    font-size: 0.75rem;
  }
}