/* ===== E-BOOK READER STYLES ===== */
/* Adapts automatically to the current theme via CSS variables */

/* ---- Base container ---- */
.backdrop.reader-mode .ebook-reader {
  max-width: 720px;
  margin: 0 auto;
  background: var(--bg1);
  padding: 55px 65px;
  font-family: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--text);
  box-shadow: var(--shadow);
  min-height: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  hyphens: auto;
}

/* ---- Override Word inline styles ---- */
.backdrop.reader-mode .ebook-reader p,
.backdrop.reader-mode .ebook-reader li,
.backdrop.reader-mode .ebook-reader span,
.backdrop.reader-mode .ebook-reader div {
  font-size: 16.5px !important;
  line-height: 1.9 !important;
  font-family: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif !important;
  color: var(--text) !important;
  margin-bottom: 0.5em !important;
  text-align: left !important;
  text-rendering: optimizeLegibility;
}

/* ---- Headings ---- */
.backdrop.reader-mode .ebook-reader h1,
.backdrop.reader-mode .ebook-reader h2,
.backdrop.reader-mode .ebook-reader h3,
.backdrop.reader-mode .ebook-reader h4,
.backdrop.reader-mode .ebook-reader h5,
.backdrop.reader-mode .ebook-reader h6 {
  font-family: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif !important;
  color: var(--text) !important;
  line-height: 1.35 !important;
}

.backdrop.reader-mode .ebook-reader h1 {
  font-size: 30px !important;
  font-weight: 700 !important;
  text-align: center !important;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-top: 2.5em !important;
  margin-bottom: 1.2em !important;
}

.backdrop.reader-mode .ebook-reader h2 {
  font-size: 24px !important;
  font-weight: 600 !important;
  text-align: left !important;
  letter-spacing: 0.5px;
  margin-top: 2.2em !important;
  margin-bottom: 0.8em !important;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}

.backdrop.reader-mode .ebook-reader h3 {
  font-size: 20px !important;
  font-weight: 600 !important;
  margin-top: 2em !important;
  margin-bottom: 0.6em !important;
}

.backdrop.reader-mode .ebook-reader h4 {
  font-size: 18px !important;
  font-weight: 600 !important;
  font-style: italic !important;
  margin-top: 1.8em !important;
  margin-bottom: 0.5em !important;
}

.backdrop.reader-mode .ebook-reader h5,
.backdrop.reader-mode .ebook-reader h6 {
  font-size: 16.5px !important;
  font-weight: 600 !important;
}

/* ---- Paragraph ---- */
.backdrop.reader-mode .ebook-reader p {
  text-indent: 0;
  margin-bottom: 0.8em !important;
  orphans: 3;
  widows: 3;
  text-align: justify !important;
}

/* ---- Lists ---- */
.backdrop.reader-mode .ebook-reader ul,
.backdrop.reader-mode .ebook-reader ol {
  padding-left: 35px !important;
  margin: 0.8em 0 !important;
}

.backdrop.reader-mode .ebook-reader li {
  margin-bottom: 8px !important;
}

/* ---- Horizontal rule ---- */
.backdrop.reader-mode .ebook-reader hr {
  border: none !important;
  height: 2px !important;
  background: var(--line) !important;
  margin: 2.5em auto !important;
  width: 30% !important;
  opacity: 0.4;
}

/* ---- Images ---- */
.backdrop.reader-mode .ebook-reader img {
  max-width: 100% !important;
  height: auto !important;
  display: block !important;
  margin: 1.5em auto !important;
  border-radius: 4px !important;
  box-shadow: 0 3px 12px rgba(0,0,0,0.12) !important;
}

/* ---- Tables ---- */
.backdrop.reader-mode .ebook-reader table {
  width: 100% !important;
  border-collapse: collapse !important;
  margin: 1.5em 0 !important;
  font-size: 15px !important;
}

.backdrop.reader-mode .ebook-reader td,
.backdrop.reader-mode .ebook-reader th {
  padding: 10px 14px !important;
  border: 1px solid var(--line) !important;
  text-align: left !important;
  font-family: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif !important;
}

.backdrop.reader-mode .ebook-reader th {
  background: rgba(128,128,128,0.08) !important;
  font-weight: 600 !important;
}

/* ---- Code ---- */
.backdrop.reader-mode .ebook-reader pre,
.backdrop.reader-mode .ebook-reader code {
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace !important;
  font-size: 14px !important;
  background: rgba(128,128,128,0.07) !important;
  color: var(--text) !important;
  border-radius: 3px !important;
}

.backdrop.reader-mode .ebook-reader code {
  padding: 2px 6px !important;
}

.backdrop.reader-mode .ebook-reader pre {
  padding: 18px !important;
  overflow-x: auto !important;
  line-height: 1.5 !important;
  border-left: 3px solid var(--accent) !important;
}

/* ---- Blockquote ---- */
.backdrop.reader-mode .ebook-reader blockquote {
  border-left: 4px solid var(--accent) !important;
  padding: 12px 24px !important;
  margin: 1.5em 0 !important;
  color: var(--muted) !important;
  background: rgba(128,128,128,0.04) !important;
  font-style: italic !important;
  font-size: 16px !important;
}

/* ---- Links ---- */
.backdrop.reader-mode .ebook-reader a {
  color: var(--accent) !important;
  text-decoration: none !important;
  border-bottom: 1px solid var(--line) !important;
  transition: border-color 0.2s;
}

.backdrop.reader-mode .ebook-reader a:hover {
  border-bottom-color: var(--accent) !important;
}

/* ---- TOC (Daftar Isi) styles ---- */
.backdrop.reader-mode .ebook-reader .toc-list {
  list-style: none;
  padding: 0 !important;
  margin: 20px auto;
  max-width: 680px;
  text-align: left;
}

.backdrop.reader-mode .ebook-reader .toc-list li {
  margin: 0 !important;
  padding: 0 !important;
  display: block;
  width: 100%;
  text-align: left;
  border: 2px solid var(--line);
  border-radius: 10px;
  margin-bottom: 12px !important;
  background: rgba(128,128,128,0.03);
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
  overflow: hidden;
  box-sizing: border-box;
}

.backdrop.reader-mode .ebook-reader .toc-list li:hover {
  background: rgba(128,128,128,0.07);
  border-color: var(--accent);
  transform: translateX(4px);
}

.backdrop.reader-mode .ebook-reader .toc-list li a {
  display: block;
  padding: 14px 20px;
  text-decoration: none !important;
  border-bottom: none !important;
  color: var(--text) !important;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-align: left;
  box-sizing: border-box;
}

.backdrop.reader-mode .ebook-reader .toc-list li a:hover {
  color: var(--accent) !important;
  border-bottom: none !important;
}

.backdrop.reader-mode .ebook-reader .toc-list li a strong {
  font-weight: 600;
}

/* Center the "Daftar Isi :" heading */
.backdrop.reader-mode .ebook-reader #daftar-isi {
  text-align: center !important;
}

/* Section heading scroll margin for smooth anchor navigation */
.backdrop.reader-mode .ebook-reader [id] {
  scroll-margin-top: 30px;
}

/* ---- Floating TOC Back Button ---- */
.backdrop.reader-mode .toc-back-btn {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 20;
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  width: 56px;
  height: 56px;
  padding: 0;
  background: var(--bg1);
  color: var(--accent);
  border: 2.5px solid var(--accent);
  border-radius: 12px;
  font-weight: 900;
  font-size: 30px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.backdrop.reader-mode .toc-back-btn.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.backdrop.reader-mode .toc-back-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 22px rgba(0,0,0,0.22);
  background: var(--accent);
  color: #fff;
}

/* ---- Strong ---- */
.backdrop.reader-mode .ebook-reader strong,
.backdrop.reader-mode .ebook-reader b {
  font-weight: 700 !important;
}

/* ---- Responsive ---- */
@media (max-width: 700px) {
  .backdrop.reader-mode .ebook-reader {
    padding: 25px 20px !important;
  }

  .backdrop.reader-mode .ebook-reader p,
  .backdrop.reader-mode .ebook-reader li,
  .backdrop.reader-mode .ebook-reader span,
  .backdrop.reader-mode .ebook-reader div {
    font-size: 15px !important;
  }

  .backdrop.reader-mode .ebook-reader h1 { font-size: 24px !important; }
  .backdrop.reader-mode .ebook-reader h2 { font-size: 20px !important; }
  .backdrop.reader-mode .ebook-reader h3 { font-size: 18px !important; }
}