/* ============================================================
   eink.css — E-Ink Display Mode
   Applied when body.eink-mode is present.
   ============================================================ */

/* --- Atkinson Hyperlegible font faces --- */
@font-face {
  font-family: 'Atkinson Hyperlegible';
  src: url('../fonts/atkinson-hyperlegible-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Atkinson Hyperlegible';
  src: url('../fonts/atkinson-hyperlegible-italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'Atkinson Hyperlegible';
  src: url('../fonts/atkinson-hyperlegible-bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Atkinson Hyperlegible';
  src: url('../fonts/atkinson-hyperlegible-bolditalic.woff2') format('woff2');
  font-weight: 700;
  font-style: italic;
  font-display: swap;
}

/* ==========================================================
   Global reset — white background, black text, no animations
   ========================================================== */
body.eink-mode {
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-size: 19px;
  background: #fff;
  color: #000;
  line-height: 1.7;
}
body.eink-mode * {
  box-sizing: border-box;
  transition: none !important;
  animation: none !important;
  text-shadow: none !important;
  box-shadow: none !important;
}

/* --- Links --- */
body.eink-mode a {
  color: #1a0dab;
  text-decoration: underline;
}
body.eink-mode a:hover {
  color: #1a0dab;
  text-decoration: underline;
}

/* ==========================================================
   Landing page (index.html)
   ========================================================== */
body.eink-mode main {
  background: #fff;
  max-width: 740px;
  padding: 40px 24px;
}
body.eink-mode h1 {
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-weight: 700;
  font-size: 2rem;
  color: #000;
  letter-spacing: 0;
}
body.eink-mode .tagline {
  color: #444;
  font-size: 1.05rem;
}
body.eink-mode .window {
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 0;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: none;
  background: #fafafa;
}
body.eink-mode .window h2 {
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: #000;
  letter-spacing: 0;
}
body.eink-mode .guide-card {
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 0;
  padding: 14px 18px;
  margin-bottom: 8px;
}
body.eink-mode .guide-card:hover {
  background: #eee;
  border-color: #999;
}
body.eink-mode .guide-card .guide-title {
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: #000;
  letter-spacing: 0;
}
body.eink-mode .guide-card .guide-meta {
  color: #555;
  font-size: 0.85rem;
}
body.eink-mode footer {
  color: #666;
  font-size: 0.8rem;
  padding: 20px 24px 32px;
}
body.eink-mode footer a {
  color: #1a0dab;
  text-decoration: underline;
}

/* ==========================================================
   Reader page (reader.html) — layout
   ========================================================== */
body.eink-mode {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* --- Sidebar --- */
body.eink-mode #sidebar {
  width: 300px;
  min-width: 300px;
  background: #f5f5f5;
  border-right: 1px solid #ccc;
  box-shadow: none;
}
body.eink-mode #sidebar h1 {
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 12px 14px 10px;
  border-bottom: 1px solid #ccc;
  color: #000;
  letter-spacing: 0;
}
body.eink-mode #home-link {
  color: #1a0dab;
  text-decoration: underline;
  font-size: 0.9rem;
  border: 1px solid #ccc;
  background: #fff;
  border-radius: 0;
}
body.eink-mode #home-link:hover {
  color: #1a0dab;
  background: #ddd;
  border-color: #999;
  text-decoration: underline;
}
body.eink-mode #home-icon {
  font-size: 1.1rem;
}

/* --- Search --- */
body.eink-mode #search {
  padding: 10px 12px;
  border-bottom: 1px solid #ccc;
  background: #eaeaea;
}
body.eink-mode #search input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #999;
  border-radius: 0;
  background: #fff;
  color: #000;
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-size: 0.9rem;
}
body.eink-mode #search input:focus {
  outline: 2px solid #999;
  border-color: #666;
}
body.eink-mode #search input::placeholder {
  color: #999;
}

/* --- TOC --- */
body.eink-mode #toc {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}
body.eink-mode .toc-item {
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-size: 0.85rem;
  padding: 5px 14px;
  border-left: 3px solid transparent;
  color: #333;
}
body.eink-mode .toc-item:hover {
  background: #e0e0e0;
  color: #000;
  border-left-color: #999;
}
body.eink-mode .toc-item.active {
  background: #ddd;
  color: #000;
  border-left-color: #333;
  font-weight: 700;
}
body.eink-mode .toc-item.hidden {
  display: none;
}
body.eink-mode .toc-d0 {
  padding-left: 14px;
  font-weight: 700;
  font-size: 0.9rem;
  color: #000;
}
body.eink-mode .toc-d1 { padding-left: 28px; }
body.eink-mode .toc-d2 { padding-left: 42px; }
body.eink-mode .toc-d3 { padding-left: 56px; }
body.eink-mode .toc-folder {
  font-weight: 700;
  cursor: default;
  border-left-color: transparent !important;
}
body.eink-mode .toc-folder:hover {
  background: transparent;
}

/* --- Main content area --- */
body.eink-mode #main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #fff;
}

/* --- Nav bars --- */
body.eink-mode #nav-top,
body.eink-mode #nav-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  background: #f0f0f0;
  border-bottom: 1px solid #ccc;
  min-height: 42px;
  gap: 8px;
  flex-shrink: 0;
}
body.eink-mode #nav-bottom {
  border-top: 1px solid #ccc;
  border-bottom: none;
}

body.eink-mode .nav-btn {
  padding: 6px 14px;
  border: 1px solid #999;
  border-radius: 0;
  background: #fff;
  color: #000;
  cursor: pointer;
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-size: 0.85rem;
  letter-spacing: 0;
  white-space: nowrap;
}
body.eink-mode .nav-btn:hover {
  background: #ddd;
  border-color: #666;
}
body.eink-mode .nav-btn:disabled {
  opacity: 0.35;
  cursor: default;
}
body.eink-mode .nav-btn:disabled:hover {
  background: #fff;
}

/* --- E-ink toggle button --- */
body.eink-mode #eink-btn {
  font-weight: 700;
}
#eink-btn {
  font-size: 0.85rem;
}

body.eink-mode #breadcrumb {
  font-size: 0.82rem;
  color: #555;
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
}
body.eink-mode #breadcrumb a {
  color: #1a0dab;
  text-decoration: underline;
}
body.eink-mode #breadcrumb span {
  color: #000;
  font-weight: 700;
}

/* ==========================================================
   Content area — prose
   ========================================================== */
body.eink-mode #content {
  flex: 1;
  overflow-y: auto;
  padding: 24px 32px;
  max-width: none;
  width: 100%;
  margin: 0;
  background: #fff;
}
body.eink-mode #content h1,
body.eink-mode #content h2,
body.eink-mode #content h3,
body.eink-mode #content p,
body.eink-mode #content ul,
body.eink-mode #content ol,
body.eink-mode #content blockquote,
body.eink-mode #content hr {
  max-width: none;
  margin-left: 0;
  margin-right: 0;
}
body.eink-mode #content h1 {
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-weight: 700;
  font-size: 1.5rem;
  margin: 0 0 16px;
  color: #000;
  border-bottom: 2px solid #000;
  padding-bottom: 8px;
  letter-spacing: 0;
}
body.eink-mode #content h2 {
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-weight: 700;
  font-size: 1.25rem;
  margin: 28px 0 10px;
  color: #000;
  letter-spacing: 0;
}
body.eink-mode #content h3 {
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-weight: 700;
  font-size: 1.1rem;
  margin: 22px 0 8px;
  color: #000;
  letter-spacing: 0;
}
body.eink-mode #content p {
  margin: 8px 0;
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-size: 1rem;
  line-height: 1.7;
  color: #000;
}
body.eink-mode #content p strong:first-child {
  color: #000;
  font-weight: 700;
}
body.eink-mode #content ul,
body.eink-mode #content ol {
  margin: 8px 0;
  padding-left: 28px;
  line-height: 1.7;
}
body.eink-mode #content li {
  margin: 3px 0;
}
body.eink-mode #content pre {
  background: #f5f5f5;
  border: 1px solid #ccc;
  padding: 12px 16px;
  border-radius: 0;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.45;
  margin: 14px 0;
  color: #000;
}
body.eink-mode #content pre code {
  font-family: monospace;
  font-size: 0.82rem;
  color: #000;
}
body.eink-mode #content code {
  font-family: monospace;
  font-size: 0.9em;
}
body.eink-mode #content blockquote {
  border-left: 3px solid #000;
  margin: 14px 0;
  padding: 10px 16px;
  background: #f9f9f9;
  color: #000;
  font-style: italic;
  border-radius: 0;
}
body.eink-mode #content table {
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 0.88rem;
}
body.eink-mode #content th,
body.eink-mode #content td {
  border: 1px solid #999;
  padding: 6px 12px;
  text-align: left;
}
body.eink-mode #content th {
  background: #ddd;
  color: #000;
  font-family: 'Atkinson Hyperlegible', Georgia, serif;
  font-weight: 700;
  font-size: 0.88rem;
}
body.eink-mode #content hr {
  border: none;
  border-top: 1px solid #ccc;
  margin: 24px 0;
}
body.eink-mode #content pre.keep-scroll {
  white-space: pre;
  overflow-x: auto;
}
body.eink-mode #loading {
  text-align: center;
  padding: 60px;
  color: #666;
  font-style: italic;
}



/* ==========================================================
   Mobile — e-ink mode
   ========================================================== */
@media (max-width: 768px) {
  body.eink-mode #sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
    width: 280px;
    min-width: 280px;
    transform: translateX(-100%);
    transition: transform 0.2s !important;
    border-right: 1px solid #ccc;
    box-shadow: 2px 0 10px rgba(0,0,0,0.15) !important;
  }
  body.eink-mode #sidebar.show {
    transform: translateX(0);
  }
  body.eink-mode #menu-btn {
    display: block;
    background: none;
    border: none;
    color: #000;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px 8px;
  }
  body.eink-mode #content {
    max-width: none;
    padding: 16px 14px;
  }
  body.eink-mode #content h1,
  body.eink-mode #content h2,
  body.eink-mode #content h3,
  body.eink-mode #content p,
  body.eink-mode #content ul,
  body.eink-mode #content ol,
  body.eink-mode #content blockquote,
  body.eink-mode #content hr {
    max-width: none;
    margin-left: 0;
    margin-right: 0;
  }
  body.eink-mode #content pre {
    font-size: 0.72rem;
    padding: 8px 10px;
    max-width: 100%;
    white-space: pre-wrap;
    word-break: normal;
    overflow-wrap: break-word;
  }
  body.eink-mode #nav-top,
  body.eink-mode #nav-bottom {
    padding: 6px 10px;
  }
  body.eink-mode .nav-btn {
    padding: 5px 10px;
    font-size: 0.8rem;
  }
}