/* book.css - Maquetación y acabados editoriales para Fígaro y los Ecos de la Sombra */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  background: var(--ambient-bg);
  color: var(--text-primary);
  user-select: text;
  -webkit-user-select: text;
}

/* Escenario general centrado */
.reader-viewport {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  perspective: 2600px;
  overflow: hidden;
}

.reader-viewport::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle 900px at 50% 50%, var(--ambient-spot), transparent 75%);
  pointer-events: none;
}

/* Contenedor del libro físico con proporciones equilibradas */
.book-stage {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: min(1200px, 92vw);
  height: min(740px, calc(100vh - 150px));
  box-shadow: var(--shadow-book);
  border-radius: 4px;
}

#book-container {
  width: 100%;
  height: 100%;
}

/* Hoja individual de libro */
.page {
  background-color: var(--page-bg);
  color: var(--text-primary);
  overflow: hidden;
  position: relative;
  padding: 2.4rem 2.4rem 1.8rem 2.4rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--page-border);
  box-sizing: border-box;
}

/* Sombra central del lomo (Gutter) */
.page.--left {
  box-shadow: inset -22px 0 26px -16px var(--gutter-shadow);
  border-right: 1px solid rgba(0, 0, 0, 0.12);
}

.page.--right {
  box-shadow: inset 22px 0 26px -16px var(--gutter-shadow);
  border-left: 1px solid rgba(0, 0, 0, 0.12);
}

/* Encabezado vivo de página */
.page-header {
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(0, 0, 0, 0.09);
  padding-bottom: 0.45rem;
  margin-bottom: 1.1rem;
  flex-shrink: 0;
  text-align: center;
}

.page-header .header-title {
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 90%;
}

/* Cuerpo de texto literario */
.page-body {
  flex: 1;
  font-family: var(--font-serif);
  font-size: var(--book-font-size);
  line-height: var(--book-line-height);
  text-align: justify;
  hyphens: auto;
  overflow: hidden;
}

.page-body p {
  margin-bottom: 0.85rem;
  text-indent: 1.5em;
  text-wrap: pretty;
}

.page-body p:first-of-type,
.page-body p.no-indent {
  text-indent: 0;
}

/* Diálogos canónicos con sangría suave */
.page-body p.dialogue {
  text-indent: -0.7em;
  padding-left: 0.7em;
}

/* Salto de escena tipográfico (Dinkus) */
.scene-break {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 1.2rem auto 1.1rem auto;
  font-family: var(--font-display);
  letter-spacing: 0.6em;
  color: var(--text-accent);
  font-size: 0.82rem;
  opacity: 0.75;
}

/* Pie de página y paginación */
.page-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  padding-top: 0.45rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  margin-top: 0.8rem;
  flex-shrink: 0;
  min-height: 1.5rem;
}

/* ===================================================
   PORTADA Y CONTRACUBIERTA
   =================================================== */
.page.page-cover {
  padding: 0;
  background: #111317;
  color: #fff;
  border: 2px solid #2d261e;
}

.cover-wrapper {
  height: calc(100% - 24px);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  border: 1px solid rgba(194, 139, 56, 0.35);
  margin: 12px;
  position: relative;
  background: radial-gradient(circle at center, rgba(38, 42, 50, 0.7) 0%, rgba(10, 11, 14, 0.95) 100%);
}

.cover-art {
  max-width: 75%;
  max-height: 200px;
  object-fit: contain;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.8));
  margin: 1rem 0;
}

.cover-title-block h1 {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.15;
  color: #f1ebd9;
  text-wrap: balance;
}

.cover-title-block .cover-subtitle {
  display: block;
  margin-top: 0.6rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.22em;
  color: var(--color-rust);
  text-transform: uppercase;
}

/* ===================================================
   PORTADILLA INTERIOR
   =================================================== */
.page-title-leaf {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  flex: 1;
  padding: 1rem 0;
}

.title-leaf-ornament {
  width: 50px;
  height: 2px;
  background: var(--text-accent);
  margin: 1.2rem auto;
}

.title-leaf-h1 {
  font-family: var(--font-display);
  font-size: 1.85rem;
  letter-spacing: 0.08em;
  color: var(--text-accent);
  line-height: 1.25;
  text-wrap: balance;
}

/* Apertura de Capítulo */
.chapter-heading-block {
  text-align: center;
  margin-bottom: 1.5rem;
  flex-shrink: 0;
}

.chapter-number-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-accent);
  display: block;
  margin-bottom: 0.35rem;
}

.chapter-title-text {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.04em;
  text-wrap: balance;
  color: var(--text-primary);
}

.chapter-divider {
  width: 45px;
  height: 1px;
  background: var(--text-accent);
  opacity: 0.5;
  margin: 0.85rem auto 0;
}

/* Letra Capitular (Drop Cap) */
.drop-cap {
  float: left;
  font-family: var(--font-display);
  font-size: 3.2rem;
  line-height: 0.82;
  padding-top: 0.15rem;
  padding-right: 0.45rem;
  color: var(--text-accent);
  font-weight: 700;
}

/* Responsividad */
@media (max-width: 900px) {
  .book-stage {
    width: 94vw;
    height: 82vh;
  }
  .page {
    padding: 1.8rem 1.6rem 1.6rem 1.6rem;
  }
  .cover-title-block h1 {
    font-size: 1.6rem;
  }
  .cover-title-block .cover-subtitle {
    font-size: 0.95rem;
  }
}