/* ============================================================
   Suththa.org — Reader + Old Book reading experience
   ============================================================ */

/* ---------------- Book frame ---------------- */
.book {
  max-width: 920px;
  margin: 1.2rem auto;
  padding: 0 1rem;
}
/* wide spread / interlinear use ~95% of the viewport on desktop */
.book.book-spread-mode { max-width: min(96vw, 1500px); }
.book.book-interlinear-mode { max-width: min(96vw, 1150px); }

/* The open-book page block */
.book-page {
  position: relative;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(255,255,255,0.28), transparent 55%),
    linear-gradient(180deg, var(--paper-light), var(--paper) 8%, var(--paper) 92%, var(--paper-deep));
  border: 1px solid var(--paper-dark);
  border-radius: 4px 12px 12px 4px;
  box-shadow: var(--shadow-page);
  padding: 2.2rem 2.4rem 1.6rem;
}
/* page edge lines (like pressed paper block) */
.book-page::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid var(--paper-edge);
  margin: 6px;
  pointer-events: none;
}
/* aged vignette */
.book-page::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 60px rgba(120, 85, 35, 0.18);
  pointer-events: none;
}
[data-theme='dark'] .book-page::after {
  box-shadow: inset 0 0 60px rgba(0, 0, 0, 0.55);
}

/* parallel two-page spread (like facing pages of a book) */
.book-spread {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  align-items: start;
}
.book-spread.single {
  display: block;
}
.book-spread.single .col {
  min-width: 0;
  padding: 0 0.3rem;
}
.book-spread .spread-page {
  margin: 0;
}

/* page folio (page numbers) */
.page-folio {
  text-align: center;
  color: var(--accent-soft);
  font-size: 0.85rem;
  margin: 0.4rem 0 0.2rem;
  letter-spacing: 0.05em;
  cursor: pointer;
}
.page-folio:hover { color: var(--accent-deep); }

/* ---------------- Entries ---------------- */
.entry {
  position: relative;
  text-align: justify;
  margin-bottom: 0.55em;
  padding: 0.05em 0;
}

.entry.pali { font-family: var(--font-pali); font-size: 1.08em; }
.entry.sinh { font-family: var(--font-sinhala); font-size: 1.02em; }

/* headings — like book chapter headings */
.entry.heading {
  font-family: var(--font-sinhala-heading);
  color: var(--accent-deep);
  text-align: center;
  font-weight: 700;
  margin: 0.9em 0 0.5em;
  line-height: 1.4;
}
.entry.heading[level='5'] { font-size: 1.9em; }
.entry.heading[level='4'] { font-size: 1.7em; }
.entry.heading[level='3'] { font-size: 1.5em; }
.entry.heading[level='2'] { font-size: 1.35em; }
.entry.heading[level='1'] { font-size: 1.2em; }
.entry.heading[level='0'] { font-size: 1.1em; }

/* centered titles */
.entry.centered {
  font-family: var(--font-sinhala-heading);
  text-align: center;
  color: var(--ink);
  margin: 0.5em 0;
}
.entry.centered[level='5'] { font-size: 2.1em; }
.entry.centered[level='4'] { font-size: 1.8em; }
.entry.centered[level='3'] { font-size: 1.5em; }
.entry.centered[level='2'] { font-size: 1.25em; }
.entry.centered[level='1'] { font-size: 1.1em; }
.entry.centered[level='0'] { font-size: 1em; }

/* paragraphs with first-line indent (like printed books) */
.entry.paragraph { text-indent: 1.4em; }
.entry.unindented { text-indent: 0; }

/* gatha — verse lines */
.entry.gatha {
  text-align: left;
  padding-left: 2.6em;
  text-indent: 0;
}
.entry.gatha[level='2'] { padding-left: 5.4em; }
.entry.gatha .ln { display: block; }

/* drop cap for the first paragraph after a heading */
.entry.paragraph.dropcap::first-letter {
  font-family: var(--font-sinhala-heading);
  font-size: 3.1em;
  line-height: 0.85;
  float: left;
  margin: 0.08em 0.12em 0 0;
  color: var(--accent-deep);
  font-weight: 700;
}

/* inline text marks */
.entry .bold { color: var(--accent-deep); font-weight: 700; }
.entry .underline { text-decoration: underline; text-decoration-color: var(--accent); }
.entry .strike { text-decoration: line-through; color: var(--ink-faint); }
.entry .highlight {
  background: var(--highlight);
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(180, 130, 40, 0.25);
}

/* footnote pointer in text */
.entry .fn-pointer {
  color: var(--accent);
  font-size: 0.85em;
  vertical-align: super;
  padding: 0 0.15em;
  cursor: pointer;
}
.entry .fn-pointer:hover { color: var(--accent-deep); }

/* word-level click targets (Pali) */
.entry .w { cursor: pointer; border-bottom: 1px dotted transparent; }
.entry .w:hover { background: var(--highlight-soft); border-bottom-color: var(--accent-soft); }
.entry .w.bottom-open { background: var(--highlight); }

/* interlinear pair — Pali line bold above the Sinhala line */
.entry-pair {
  margin-bottom: 0.7em;
}
.entry-pair .entry {
  margin-bottom: 0.1em;
}
.entry-pair .entry.pali {
  font-weight: 700;
  color: var(--ink);
}
.entry-pair .entry.sinh {
  font-weight: 400;
  font-size: 0.98em;
  color: var(--ink-soft);
}
.entry-pair .entry-missing {
  min-height: 1.3em;
  color: var(--ink-faint);
  font-size: 0.9em;
}

/* audio-playing entry */
.entry.audio-playing { background: var(--highlight-soft); border-radius: 4px; }

/* entry options */
.entry .entry-options {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 5;
  display: none;
}
.entry:hover .entry-options { display: block; }
.entry .entry-options .opts-btn {
  border: 1px solid var(--paper-dark);
  background: var(--paper-light);
  border-radius: 50%;
  color: var(--ink-soft);
  width: 1.7rem;
  height: 1.7rem;
  font-size: 0.9rem;
  opacity: 0.75;
}
.entry .entry-options .opts-btn:hover { opacity: 1; color: var(--accent-deep); }

/* heading action icons (share/bookmark/atuwa) */
.entry.heading .heading-icons {
  display: inline-flex;
  gap: 0.3rem;
  margin-left: 0.5rem;
  vertical-align: middle;
}
.heading-icons .h-icon {
  border: none;
  background: none;
  color: var(--accent-soft);
  font-size: 0.95rem;
  padding: 0.15rem;
}
.heading-icons .h-icon:hover { color: var(--accent-deep); }
.heading-icons .h-icon.starred { color: var(--gold); }
/* A / S navigation buttons (sutta <-> atuva) */
.heading-icons .h-icon.nav-btn {
  border: 1px solid var(--paper-dark);
  background: var(--paper);
  border-radius: 50%;
  width: 1.45rem;
  height: 1.45rem;
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent-deep);
  padding: 0;
  vertical-align: middle;
}
.heading-icons .h-icon.nav-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper-light);
}

/* ---------------- Footnotes block ---------------- */
.footnotes-block {
  border-top: 1px solid var(--paper-dark);
  margin-top: 0.8rem;
  padding-top: 0.5rem;
  font-size: 0.9em;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1.4rem;
  text-align: left;
}
.footnote-item { flex: 1 1 40%; }
.footnote-item .fn-number { color: var(--accent); padding-right: 0.4rem; }
.footnote-item .fn-abbr {
  color: var(--accent);
  cursor: help;
  border-bottom: 1px dotted var(--accent-soft);
}
.footnote-item .bold { color: var(--accent-deep); font-weight: 700; }
.footnote-item .underline { text-decoration: underline; color: var(--error); }

/* footnote popup (hover/click on pointer) */
.fn-tooltip {
  position: fixed;
  z-index: 70;
  max-width: 320px;
  background: var(--paper-light);
  border: 1px solid var(--paper-dark);
  border-radius: var(--radius);
  box-shadow: var(--shadow-page);
  padding: 0.6rem 0.8rem;
  font-size: 0.85em;
  display: none;
}
.fn-tooltip.show { display: block; }

/* ---------------- Bottom toolbar ---------------- */
.reader-toolbar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  padding: 0.45rem 0.7rem;
  background: var(--paper-light);
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius-lg);
  margin: 0.8rem 0;
  box-shadow: var(--shadow-soft);
}
.reader-toolbar .spacer { flex: 1; }

/* load next section button */
.load-next {
  display: block;
  margin: 1.2rem auto;
  border: 1px dashed var(--paper-dark);
  background: var(--paper-light);
  color: var(--ink-soft);
  border-radius: var(--radius-lg);
  padding: 0.7rem 2rem;
  font-size: 0.95rem;
  text-align: center;
}
.load-next:hover {
  border-style: solid;
  color: var(--accent-deep);
  background: var(--paper-deep);
}

/* scanned page view */
.scan-holder { text-align: center; }
.scan-holder img {
  width: 100%;
  max-width: 750px;
  filter: grayscale(100%) contrast(90%) brightness(95%);
}
[data-theme='dark'] .scan-holder img {
  filter: invert(100%) contrast(70%) brightness(150%);
}

/* ---------------- Book cover (welcome / empty state) ---------------- */
.book-cover {
  max-width: 620px;
  margin: 3rem auto;
  text-align: center;
  padding: 3rem 2.4rem;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(255,255,255,0.25), transparent 60%),
    linear-gradient(180deg, var(--paper-light), var(--paper) 15%, var(--paper-deep));
  border: 1px solid var(--gold);
  border-radius: 6px 18px 18px 6px;
  box-shadow: var(--shadow-page);
  position: relative;
}
.book-cover::after {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid var(--accent-soft);
  border-radius: inherit;
  pointer-events: none;
}
.book-cover .cover-emblem {
  font-size: 3rem;
  color: var(--gold);
  margin-bottom: 0.4rem;
}
.book-cover h1 {
  font-family: var(--font-sinhala-heading);
  font-weight: 900;
  color: var(--accent-deep);
  font-size: 2.1rem;
  margin: 0.2rem 0 0.3rem;
}
.book-cover .cover-sub {
  color: var(--ink-soft);
  font-size: 1rem;
  letter-spacing: 0.12em;
}
.book-cover .cover-rule {
  width: 8rem;
  margin: 1.2rem auto;
  border-top: 2px solid var(--gold);
}
.book-cover .cover-start {
  margin-top: 1rem;
  font-size: 1.05rem;
}

/* ---------------- Settings modal (font/dark) ---------------- */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

/* ---------------- Full text search panel ---------------- */
.fts-panel {
  position: fixed;
  right: 0.7rem;
  top: var(--header-h);
  width: 420px;
  max-width: 92vw;
  max-height: 75vh;
  z-index: 75;
  background: var(--paper-light);
  border: 1px solid var(--paper-dark);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-page);
  display: none;
  flex-direction: column;
  overflow: hidden;
}
.fts-panel.show { display: flex; }
.fts-panel .fts-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.7rem;
  border-bottom: 1px solid var(--paper-edge);
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.fts-panel .fts-head #fts-progress { flex: 1; }
.fts-panel .fts-head button {
  border: none;
  background: none;
  color: var(--ink-faint);
  font-size: 1rem;
}
.fts-panel .fts-results { overflow-y: auto; padding: 0.5rem 0.7rem; }
.fts-group { margin-bottom: 0.8rem; }
.fts-group .fts-head2 {
  font-weight: 700;
  color: var(--accent-deep);
  margin-bottom: 0.2rem;
}
.fts-group ul { list-style: none; margin: 0; padding: 0; }
.fts-item {
  padding: 0.35rem 0.5rem;
  border-left: 3px solid var(--accent-soft);
  background: var(--paper);
  margin-bottom: 0.35rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  cursor: pointer;
  font-size: 0.88rem;
}
.fts-item:hover { background: var(--paper-deep); }
.fts-item .fts-snippet { display: block; }