reader.css

# Font embedding for optional bundled fonts (add matching .woff2 files under fonts/)
@font-face {
  font-family: 'Athelas';
  src: url('fonts/Athelas-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'PingFang SC';
  src: local('PingFang SC'), local('PingFangSC-Regular'),
    url('fonts/PingFangSC-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* Guard the injected UI from host-page resets (e.g., global button styles) */
#rm-reader-overlay,
#rm-reader-overlay * {
  box-sizing: border-box;
}

:where(#rm-reader-overlay) :where(button, input, select, textarea) {
  font: inherit;
  color: inherit;
  letter-spacing: normal;
  text-transform: none;
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  min-width: 0;
  max-width: none;
  width: auto;
  height: auto;
  line-height: inherit;
  border-radius: 0;
  box-shadow: none;
  text-decoration: none;
  appearance: none;
  -webkit-appearance: none;
}

#rm-reader-overlay {
  position: fixed;
  inset: 0;
  z-index: 2147483646;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow-y: auto;
  padding: 60px 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Segoe UI", sans-serif;
  background: var(--rm-overlay-bg);
  color: var(--rm-text);
}

.rm-reader-shell {
  width: min(var(--rm-max-width, 1200px), 95vw);
  background: var(--rm-bg);
  color: var(--rm-text);
  font-family: var(--rm-font-family, "Georgia", "Times New Roman", serif);
  border-radius: 0;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.34);
  overflow: hidden;
}

.rm-reader-header {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 48px 80px 8px;
}

.rm-reader-title {
  font-size: calc(var(--rm-font-size, 20px) * 3);
  font-weight: 850;
  line-height: 1.2;
  color: var(--rm-text);
  font-family: inherit;
  margin: 0 0 10px;
}

.rm-reader-meta {
  font-size: calc(var(--rm-font-size, 20px) * 1.05);
  color: var(--rm-text-soft);
  margin: 0 0 8px;
  font-family: inherit;
}
.rm-reader-meta a {
  color: var(--rm-accent);
  text-decoration: underline;
}

#rm-reader-overlay:not(.rm-links-on) .rm-reader-meta a {
  color: inherit;
  text-decoration: none;
  pointer-events: none;
}

.rm-close,
.rm-style-toggle,
.rm-outline-toggle,
.rm-images-toggle,
.rm-links-toggle,
.rm-move-top {
  position: fixed;
  right: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 6px !important;
  height: auto;
  min-width: 0;
  padding: 4px 0 !important;
  border: none;
  background: transparent;
  border-radius: 0;
  font-family: Georgia, "Times New Roman", serif !important;
  font-size: 15px !important;
  line-height: 1.35 !important;
  font-weight: 600 !important;
  letter-spacing: normal;
  color: var(--rm-text-soft) !important;
  cursor: pointer;
  box-shadow: none;
  z-index: 2147483647;
  transition: color 0.2s ease, top 0.25s ease;
  box-sizing: border-box;
  text-decoration: underline !important;
  text-transform: none !important;
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
  -webkit-tap-highlight-color: transparent;
  outline: none;
  text-align: left;
  white-space: nowrap;
  background-clip: padding-box;
  user-select: none;
  -webkit-font-smoothing: antialiased;
  isolation: isolate;
}

.rm-style-toggle:hover,
.rm-outline-toggle:hover,
.rm-images-toggle:hover,
.rm-move-top:hover,
.rm-links-toggle:hover {
  color: var(--rm-text, #111);
  text-decoration: underline;
}
.rm-style-toggle:focus,
.rm-style-toggle:active,
.rm-style-toggle:focus-visible,
.rm-style-toggle:hover,
.rm-outline-toggle:focus,
.rm-outline-toggle:active,
.rm-outline-toggle:focus-visible,
.rm-outline-toggle:hover,
.rm-images-toggle:focus,
.rm-images-toggle:active,
.rm-images-toggle:focus-visible,
.rm-images-toggle:hover,
.rm-links-toggle:focus,
.rm-links-toggle:active,
.rm-links-toggle:focus-visible,
.rm-links-toggle:hover,
.rm-move-top:focus,
.rm-move-top:active,
.rm-move-top:focus-visible,
.rm-move-top:hover {
  outline: none !important;
  box-shadow: none !important;
  background: transparent !important;
}

.rm-close {
  top: 15px;
  width: 60px;
  height: 60px;
  padding: 0;
  gap: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--rm-border);
  background: rgba(0, 0, 0, 0.2);
  color: var(--rm-text);
  text-decoration: none !important;
}

.rm-close:hover {
  background: var(--rm-button-hover);
  color: var(--rm-text);
  text-decoration: none;
}
.rm-theme-white .rm-close,
.rm-theme-beige .rm-close {
  /* Keep the X visible on light backgrounds */
  color: rgba(255, 255, 255, 0.72) !important;
  background: rgba(0, 0, 0, 0.24);
}
.rm-theme-white .rm-close:hover,
.rm-theme-beige .rm-close:hover {
  background: rgba(0, 0, 0, 0.5);
  color: #ffffff !important;
}
.rm-theme-white .rm-close .rm-close-icon svg rect,
.rm-theme-beige .rm-close .rm-close-icon svg rect {
  fill: rgba(255, 255, 255, 0.72) !important;
}
.rm-theme-white .rm-close:hover .rm-close-icon svg rect,
.rm-theme-beige .rm-close:hover .rm-close-icon svg rect {
  fill: #ffffff !important;
}

.rm-close:focus-visible {
  outline: 2px solid var(--rm-accent);
  outline-offset: 2px;
}

.rm-close-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
}

.rm-style-toggle { top: 90px; }
.rm-outline-toggle { top: 122px; }
.rm-images-toggle { top: 154px; }
.rm-links-toggle { top: 186px; }
.rm-move-top { top: 218px; }

.rm-style-toggle,
.rm-outline-toggle,
.rm-images-toggle,
.rm-links-toggle,
.rm-move-top {
  left: 20px;
  right: auto;
}

.rm-reader-body {
  padding: 10px 80px 32px;
  font-size: var(--rm-font-size, 20px);
  line-height: var(--rm-line-height, 1.7);
  text-align: var(--rm-align, left);
  font-family: inherit;
  font-weight: 500;
}

.rm-reader-body h1,
.rm-reader-body h2,
.rm-reader-body h3,
.rm-reader-body h4,
.rm-reader-body h5,
.rm-reader-body h6 {
  font-family: var(--rm-font-family, "Georgia", "Times New Roman", serif);
  color: var(--rm-text);
  margin: 1.1em 0 0.6em;
  font-weight: 700;
}

.rm-reader-body h1 { font-size: calc(var(--rm-font-size, 20px) * 1.8); }
.rm-reader-body h2 { font-size: calc(var(--rm-font-size, 20px) * 1.6); }
.rm-reader-body h3 { font-size: calc(var(--rm-font-size, 20px) * 1.35); }
.rm-reader-body h4 { font-size: calc(var(--rm-font-size, 20px) * 1.2); }
.rm-reader-body h5 { font-size: calc(var(--rm-font-size, 20px) * 1.1); }
.rm-reader-body h6 { font-size: calc(var(--rm-font-size, 20px) * 1.05); }

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

.rm-reader-body b,
.rm-reader-body strong {
  font-weight: 700;
}

.rm-reader-body blockquote {
  margin: 1.2em 0;
  padding-left: 16px;
  border-left: 3px solid var(--rm-accent);
  color: var(--rm-text-soft);
}

.rm-reader-body a {
  color: var(--rm-accent);
  text-decoration: underline;
}

#rm-reader-overlay:not(.rm-links-on) .rm-reader-body a {
  color: inherit;
  text-decoration: none;
  pointer-events: none;
}

#rm-reader-overlay.rm-images-off .rm-reader-body figure,
#rm-reader-overlay.rm-images-off .rm-reader-body figcaption,
#rm-reader-overlay.rm-images-off .rm-reader-body img {
  display: none !important;
}

.rm-reader-body img,
.rm-reader-body figure img {
  max-width: 100%;
  height: auto;
  display: table;
  margin: 24px auto;
  border-radius: 0;
  box-shadow: none;
}

.rm-reader-body figure {
  margin: 24px auto;
  text-align: left;
}

.rm-reader-body figcaption {
  font-size: 0.9rem;
  color: var(--rm-text-soft);
  margin-top: 6px;
}

.rm-reader-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  overflow-x: auto;
}

.rm-reader-body > *:not(:last-child) {
  border-bottom: 1px solid var(--rm-border);
  padding-bottom: 22px;
  margin-bottom: 22px;
}
.rm-reader-body th,
.rm-reader-body td {
  border: 1px solid var(--rm-border);
  padding: 8px 10px;
  text-align: left;
}

.rm-reader-body table caption {
  caption-side: top;
  font-weight: 600;
  color: var(--rm-text-soft);
  margin-bottom: 8px;
}

.rm-section {
  border-bottom: 1px solid var(--rm-border);
  padding-bottom: 22px;
  margin-bottom: 22px;
}

.rm-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.rm-style-panel {
  position: fixed;
  top: 84px;
  left: 180px;
  right: auto;
  width: 280px;
  max-height: calc(100vh - 140px);
  overflow-y: auto;
  background: var(--rm-panel-bg, var(--rm-bg));
  color: var(--rm-text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.45;
  border: 1px solid var(--rm-border);
  border-radius: 12px;
  box-shadow: none;
  padding: 12px 14px;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  pointer-events: none;
  z-index: 2147483646;
}

.rm-style-panel.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.rm-outline-panel {
  position: fixed;
  top: 250px;
  left: 20px;
  right: auto;
  width: 260px;
  max-height: calc(100vh - 280px);
  overflow-y: auto;
  background: var(--rm-panel-bg, var(--rm-bg));
  color: var(--rm-text);
  border: 1px solid var(--rm-border);
  border-radius: 12px;
  box-shadow: none;
  padding: 10px 12px;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  pointer-events: none;
  z-index: 2147483646;
}

.rm-outline-panel.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.rm-outline-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rm-outline-item {
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  box-shadow: none;
  padding: 8px 10px;
  border-radius: 10px;
  color: var(--rm-text);
  cursor: pointer;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 600;
  line-height: 1.35;
  transition: background 0.15s ease, color 0.15s ease;
}

.rm-outline-item:hover,
.rm-outline-item:focus,
.rm-outline-item:active,
.rm-outline-item:focus-visible {
  outline: none;
  background: var(--rm-button-bg);
  color: var(--rm-text);
}

.rm-outline-item.level-2 { padding-left: 18px; }
.rm-outline-item.level-3 { padding-left: 26px; }
.rm-outline-item.level-4 { padding-left: 34px; }
.rm-outline-item.level-5 { padding-left: 42px; }
.rm-outline-item.level-6 { padding-left: 50px; }

.rm-outline-empty {
  color: var(--rm-text-soft);
  font-style: italic;
  padding: 8px 10px;
}

.rm-style-panel,
.rm-style-panel * {
  font-size: 15px !important;
  line-height: 1.45 !important;
}

.rm-style-section {
  margin-bottom: 12px;
}

.rm-style-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--rm-text-soft);
  margin-bottom: 6px;
}

.rm-theme-swatches {
  display: flex;
  gap: 10px;
}

.rm-swatch {
  width: 36px;
  height: 36px;
  aspect-ratio: 1 / 1;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  border-radius: 50%;
  border: 2px solid var(--rm-border);
  cursor: pointer;
  background: transparent;
  position: relative;
}

.rm-swatch.active {
  box-shadow: 0 0 0 2px var(--rm-accent);
}

.rm-swatch[data-theme='white'] { background: #E6E6E6; }
.rm-swatch[data-theme='beige'] { background: #DFD8CA; }
.rm-swatch[data-theme='gray'] { background: #323233; }
.rm-swatch[data-theme='black'] { background: #000000; }

.rm-font-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.rm-font-choice {
  width: 100%;
  text-align: left;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  border-radius: 0;
  appearance: none;
  -webkit-appearance: none;
  padding: 4px 0;
  cursor: pointer;
  color: var(--rm-text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.rm-font-choice:focus,
.rm-font-choice:active,
.rm-font-choice:focus-visible,
.rm-font-choice.active,
.rm-font-choice:hover {
  outline: none !important;
  box-shadow: none !important;
  background: transparent !important;
  border: none !important;
  color: var(--rm-text);
}

.rm-font-choice::before {
  content: '';
  display: inline-block;
  width: 16px;
  color: var(--rm-text-soft);
}

.rm-font-choice.active::before {
  content: '✓';
  color: var(--rm-accent);
}

.rm-stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.rm-stepper-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--rm-text-soft);
}

.rm-stepper-controls {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.rm-stepper-value {
  min-width: 60px;
  text-align: center;
  color: var(--rm-text);
  font-weight: 700;
}

.rm-stepper-btn {
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  padding: 0;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: 1px solid var(--rm-border);
  background: transparent;
  color: var(--rm-text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.rm-stepper-btn:hover {
  border-color: var(--rm-accent);
  color: var(--rm-accent);
}

.rm-stepper-btn:active {
  transform: scale(0.96);
}

.rm-align-row {
  display: flex;
  gap: 8px;
}

.rm-align {
  flex: 1;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid var(--rm-border);
  background: transparent;
  cursor: pointer;
  color: var(--rm-text);
}

.rm-align.active {
  border-color: var(--rm-accent);
}

.rm-reader-body ul,
.rm-reader-body ol {
  padding-left: 24px;
  margin: 1em 0;
}

.rm-theme-white {
  --rm-overlay-bg: #E6E6E6;
  --rm-bg: #FFFFFF;
  --rm-panel-bg: #FFFFFF;
  --rm-text: #1B1B1B;
  --rm-text-soft: #555555;
  --rm-border: #E5E7EB;
  --rm-accent: #007AFF;
  --rm-button-bg: #F3F4F6;
  --rm-button-hover: #E5E7EB;
}

.rm-theme-beige {
  --rm-overlay-bg: #DFD8CA;
  --rm-bg: #F7F1E4;
  --rm-panel-bg: #F7F1E4;
  --rm-text: #4B4720;
  --rm-text-soft: #79755B;
  --rm-border: #EAE0C8;
  --rm-accent: #8B4513;
  --rm-button-bg: #EADDCA;
  --rm-button-hover: #DCD0B9;
}

.rm-theme-gray {
  --rm-overlay-bg: #323233;
  --rm-bg: #4A4A4D;
  --rm-panel-bg: #4A4A4D;
  --rm-text: #D7D7D8;
  --rm-text-soft: #9A9A9B;
  --rm-border: #424245;
  --rm-accent: #A7A7AF;
  --rm-button-bg: rgba(72, 72, 74, 0.7);
  --rm-button-hover: rgba(90, 90, 92, 0.7);
}

.rm-theme-black {
  --rm-overlay-bg: #000000;
  --rm-bg: #121212;
  --rm-panel-bg: #121212;
  --rm-text: #B0B0B0;
  --rm-text-soft: #888888;
  --rm-border: #2D2D2F;
  --rm-accent: #CCCCCC;
  --rm-button-bg: #28282A;
  --rm-button-hover: #3A3A3C;
}