:root {
  --bg: #f5f1ea;
  --fg: #1f1c17;
  --accent: #1b5b6a;
  --accent-2: #d19a2a;
  --muted: #7a6b5a;
  --card: #ffffff;
  --border: #e2dacd;
  --shadow: 0 12px 30px rgba(27, 28, 23, 0.08);
}
.dark {
  --bg: #1c1a17;
  --fg: #f5f2ec;
  --accent: #7bb6c7;
  --accent-2: #f0c35a;
  --muted: #b0a593;
  --card: #282421;
  --border: #3a342e;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Amiri", "Noto Naskh Arabic", "Scheherazade New", serif;
  background: radial-gradient(circle at 10% 10%, rgba(209, 154, 42, 0.12), transparent 35%),
              radial-gradient(circle at 90% 0%, rgba(27, 91, 106, 0.12), transparent 40%),
              var(--bg);
  color: var(--fg);
  line-height: 1.95;
  font-size: 18px;
}
a { color: #6a2f2f; }
a:visited { color: #6a2f2f; }
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 10px 18px;
  background: linear-gradient(120deg, #f4e6d1, #f8f4ee);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header > * { min-width: 0; }
.site-title-wrap { max-width: 100%; }
.site-title-main { word-break: keep-all; }
.site-doi { margin-inline-start: 0; }
.site-actions { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }
.menu-toggle {
  background: #fff;
  color: var(--accent);
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  position: relative;
  z-index: 60;
}
.menu-toggle--icon {
  width: 44px;
  height: 44px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.menu-toggle--floating {
  position: fixed;
  top: 14px;
  right: 18px;
  z-index: 70;
}
.menu-toggle__icon,
.menu-toggle__icon::before,
.menu-toggle__icon::after {
  content: "";
  display: block;
  width: 22px;
  height: 3px;
  background: currentColor;
  border-radius: 999px;
  position: relative;
}
.menu-toggle__icon::before { position: absolute; top: -7px; left: 0; }
.menu-toggle__icon::after { position: absolute; top: 7px; left: 0; }
.dark .menu-toggle { background: #221e1a; color: #e6d6b1; border-color: #3a342e; }
.sidebar-scrim {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  z-index: 30;
}
@media (max-width: 900px) {
  .site-header {
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 14px;
  }
  .site-doi { margin-inline-start: 0; }
  .site-actions {
    width: 100%;
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: flex-start;
  }
  .site-actions .theme-toggle { width: auto; padding: 8px 10px; }
  .site-title-main { font-size: 18px; padding-right: 0; }
  .site-title-sub { font-size: 12px; padding-right: 0; }
  .site-doi { font-size: 12px; }
  .site-title-meta { gap: 8px; }
  .layout { display: block; padding: 10px; }
  .sidebar {
    display: none;
    position: fixed;
    top: 96px;
    right: 12px;
    width: min(320px, 80vw);
    height: calc(100vh - 120px);
    opacity: 0;
    transform: translateX(110%);
    transition: opacity 0.2s ease, transform 0.2s ease;
    pointer-events: none;
    z-index: 40;
  }
  .sidebar-open .sidebar {
    display: block;
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
  }
  .sidebar-open .sidebar-scrim { display: block; }
  body.sidebar-open { --sidebar-w: 0px; }
  .menu-toggle--floating {
    top: 12px;
    right: 14px;
  }
}
.footnotes li,
.content [id^="fn-"],
.content [id^="fnref-"] {
  scroll-margin-top: 90px;
}
.dark .site-header {
  background: linear-gradient(120deg, #1c1a17, #151310);
  color: #f5f2ec;
}
.dark .site-header .site-title {
  color: #f5f2ec;
}
.site-title-wrap { display: flex; flex-direction: column; gap: 4px; }
.site-title-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  padding-right: 30px;
}
.site-title-main {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.2px;
  padding-right: 56px;
}
.site-title-sub { font-size: 13px; color: var(--muted); }
.site-title-sub { padding-right: 18px; }
.site-doi {
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}
.dark .site-title-sub { color: #cfc7bc; }
.dark .site-doi { color: #e6d6b1; }
.theme-toggle {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: var(--shadow);
}
.layout {
  display: grid;
  grid-template-columns: 1fr;
  min-height: calc(100vh - 60px);
  gap: 18px;
  padding: 18px;
}
body { --sidebar-w: min(320px, 85vw); }
@media (min-width: 980px) {
  body.sidebar-open .layout { grid-template-columns: var(--sidebar-w) 1fr; }
}
.sidebar {
  display: none;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  position: sticky;
  top: 72px;
  width: 100%;
  height: calc(100vh - 90px);
  overflow: auto;
  background: var(--card);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.sidebar-open .sidebar {
  display: block;
  opacity: 1;
  pointer-events: auto;
}
.search-box { position: relative; }
.search-box input, .page-jump input {
  width: 100%;
  height: 44px;
  padding: 0 12px 0 56px;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 8px;
  background: #fff;
}
input[type="search"]::-webkit-search-cancel-button {
  -webkit-appearance: none;
  appearance: none;
  display: none;
}
input[type="search"]::-ms-clear { display: none; }
.dark .search-box input, .dark .page-jump input { background: #201c18; color: var(--fg); }
.search-results {
  font-size: 14px;
  background: rgba(0, 0, 0, 0.02);
  padding: 8px;
  border-radius: 10px;
}
.search-item { padding: 6px 0; border-bottom: 1px dashed var(--border); }
.search-item:last-child { border-bottom: none; }
.search-item a { color: var(--accent); text-decoration: none; }
.dark .search-item a { color: var(--accent-2); }
.dark .search-item a:visited { color: var(--accent-2); }
.search-clear {
  position: absolute;
  left: 16px;
  top: 22px;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--muted);
  cursor: pointer;
  z-index: 1;
}
.dark .search-clear {
  background: #221e1a;
  color: var(--accent-2);
}
.page-jump-row { display: flex; gap: 8px; }
.page-jump button {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
}
.toc details > summary {
  cursor: pointer;
  font-weight: 700;
  margin: 8px 0;
  color: var(--accent);
}
.toc ul { list-style: none; padding-right: 16px; }
.toc a { color: var(--fg); text-decoration: none; }
.toc a.active { color: var(--accent-2); font-weight: 700; }
.dark a { color: var(--accent-2); }
.dark a:visited { color: var(--accent-2); }
.toc details[open] > summary {
  color: var(--accent-2);
}
.toc a.active {
  background: rgba(209, 154, 42, 0.12);
  padding: 2px 6px;
  border-radius: 6px;
}
.dark .footnotes a { color: var(--accent-2); }
.dark .footnotes a:visited { color: var(--accent-2); }
.dark .content sup a { color: var(--accent-2); }
.dark .content sup a:visited { color: var(--accent-2); }
main { padding: 4px 6px; }
.breadcrumbs {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 12px;
  font-weight: 700;
}
.breadcrumbs a { color: var(--accent); text-decoration: none; }
.dark .breadcrumbs { color: #cfc7bc; }
.dark .breadcrumbs a { color: #e6d6b1; }
.content {
  background: var(--card);
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  text-align: justify;
  text-justify: inter-word;
}
.content-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.content-header h1 { margin: 0; flex: 1; }
.content h1 {
  margin-top: 0;
  font-size: 26px;
  border-right: 4px solid var(--accent);
  padding-right: 10px;
}
.content h2 {
  font-size: 22px;
  margin-top: 24px;
  color: var(--accent);
}
.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  border: 1px solid rgba(122, 107, 90, 0.18);
}
.content th,
.content td {
  border: 1px solid rgba(122, 107, 90, 0.18);
  padding: 8px 10px;
  vertical-align: top;
}
.content thead th {
  text-align: center;
  background: rgba(27, 91, 106, 0.08);
  color: var(--fg);
}
.content table tr:first-child > th,
.content table tr:first-child > td {
  text-align: center;
  background: rgba(27, 91, 106, 0.08);
  color: var(--fg);
}
.content tbody td:first-child {
  background: rgba(209, 154, 42, 0.12);
  font-weight: 600;
}
.dark .content table,
.dark .content th,
.dark .content td {
  border-color: rgba(176, 165, 147, 0.2);
}
.dark .content thead th {
  background: rgba(123, 182, 199, 0.18);
}
.dark .content table tr:first-child > th,
.dark .content table tr:first-child > td {
  background: rgba(123, 182, 199, 0.18);
}
.dark .content tbody td:first-child {
  background: rgba(240, 195, 90, 0.12);
}
.page-marker {
  display: inline-block;
  margin: 0 6px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  background: var(--border);
  color: var(--muted);
}
.figure { margin: 18px 0; }
.figure img { max-width: 100%; height: auto; border: 1px solid var(--border); border-radius: 10px; }
.footnotes {
  margin-top: 30px;
  border-top: 1px dashed var(--border);
  padding-top: 16px;
}
.prev-next { display: flex; justify-content: space-between; margin: 20px 0; }
.prev-next a {
  text-decoration: none;
  color: var(--accent);
  background: rgba(27, 91, 106, 0.08);
  padding: 6px 10px;
  border-radius: 10px;
}
.prev-next--top {
  justify-content: flex-start;
  gap: 10px;
  margin: 0;
  margin-inline-start: auto;
}
.prev-next--top a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  background: #fff;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}
.dark .prev-next--top a {
  color: var(--accent-2);
  border-color: rgba(209, 154, 42, 0.45);
  background: rgba(240, 195, 90, 0.12);
}
.dark .prev-next a {
  color: #f5f2ec;
  background: rgba(209, 154, 42, 0.25);
  border: 1px solid rgba(209, 154, 42, 0.45);
}
.site-footer {
  padding: 14px 20px;
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--card);
}
.copy-quote {
  margin-right: 8px;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
}
.dark .copy-quote {
  background: #221e1a;
  color: #f5f2ec;
}
.page-marker,
.page-jump {
  display: none;
}

* {
  scrollbar-width: thin;
  scrollbar-color: rgba(209, 154, 42, 0.6) transparent;
}
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(209, 154, 42, 0.6);
  border-radius: 10px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
.sidebar-toggle { display: none !important; }
.page-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.page-header h1 { margin: 0; flex: 1; }
.page-nav { display: flex; gap: 10px; flex-shrink: 0; }
.page-nav a { width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--accent); background: #fff; color: var(--accent); display: inline-flex; align-items: center; justify-content: center; text-decoration: none; box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08); }
.dark .page-nav a { color: var(--accent-2); border-color: rgba(209, 154, 42, 0.45); background: rgba(240, 195, 90, 0.12); }
.page-nav.bottom { display: flex; justify-content: space-between; margin: 20px 0; }
.page-nav.bottom .nav-btn { text-decoration: none; color: var(--accent); background: rgba(27, 91, 106, 0.08); padding: 6px 10px; border-radius: 10px; }
.dark .page-nav.bottom .nav-btn { color: #f5f2ec; background: rgba(209, 154, 42, 0.25); border: 1px solid rgba(209, 154, 42, 0.45); }