/* ─── Irán, lugar de vacaciones — diseño geométrico persa ───────────────── */

.iran-libro {
  --bg:        #fbf8f3;
  --bg-alt:    #f3ede0;
  --ink:       #1f2a30;
  --ink-soft:  #4a5860;
  --ink-mute:  #8a8678;
  --turquoise: #2c8a8a;
  --turquoise-dark: #1f6b6b;
  --terracota: #c25b3f;
  --gold:      #b8924a;
  --rule:      #d4cfc1;

  --serif: 'Playfair Display', Georgia, serif;
  --sans:  'Inter', system-ui, sans-serif;

  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.75;
}

.iran-libro a { color: var(--turquoise-dark); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.iran-libro a:hover { color: var(--terracota); }

/* ─── Patrón geométrico de fondo (azulejo persa) ───────────────────────── */

.iran-libro .pattern-rule {
  height: 24px;
  background-image:
    linear-gradient(45deg, var(--turquoise) 25%, transparent 25%),
    linear-gradient(-45deg, var(--turquoise) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--turquoise) 75%),
    linear-gradient(-45deg, transparent 75%, var(--turquoise) 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0px;
  opacity: 0.7;
  margin: 4rem 0;
}

.iran-libro .ornament {
  text-align: center;
  font-size: 1.5rem;
  letter-spacing: 1.5rem;
  color: var(--turquoise);
  margin: 3rem 0;
  user-select: none;
}

.iran-libro .ornament-line {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  max-width: 400px;
  margin: 3rem auto;
  color: var(--turquoise);
  justify-content: center;
}

.iran-libro .ornament-line::before,
.iran-libro .ornament-line::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--turquoise);
  opacity: 0.4;
}

/* ─── Landing ─────────────────────────────────────────────────────────── */

.iran-libro .landing {
  position: relative;
  padding-bottom: 6rem;
  overflow: hidden;
}

.iran-libro .landing::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 60vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(44,138,138,0.1), transparent 50%),
    radial-gradient(circle at 80% 30%, rgba(194,91,63,0.08), transparent 50%);
  pointer-events: none;
}

.iran-libro .landing-hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 6rem 2rem 4rem;
  text-align: center;
  position: relative;
}

.iran-libro .landing-hero .label {
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--terracota);
  margin: 0 0 2rem;
}

.iran-libro h1.book-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(3rem, 7.5vw, 6rem);
  line-height: 1;
  margin: 0 0 1rem;
  color: var(--ink);
  letter-spacing: -0.005em;
}

.iran-libro h1.book-title em {
  font-style: italic;
  color: var(--turquoise);
  font-weight: 400;
}

.iran-libro .authors {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--ink-soft);
  margin: 1.5rem 0 0;
  font-weight: 400;
}

/* ─── Cover dual ──────────────────────────────────────────────────────── */

.iran-libro .cover-display {
  display: flex;
  justify-content: center;
  margin: 4rem auto;
  position: relative;
}

.iran-libro .cover-display img {
  max-width: 280px;
  height: auto;
  box-shadow:
    0 1px 0 var(--rule),
    0 30px 60px -25px rgba(31, 42, 48, 0.4);
  position: relative;
}

.iran-libro .cover-display::before,
.iran-libro .cover-display::after {
  content: "";
  position: absolute;
  width: 80px;
  height: 80px;
  top: 50%;
  transform: translateY(-50%);
  border: 1px solid var(--turquoise);
  opacity: 0.3;
}

.iran-libro .cover-display::before {
  left: calc(50% - 250px);
  border-radius: 50%;
}

.iran-libro .cover-display::after {
  right: calc(50% - 250px);
  transform: translateY(-50%) rotate(45deg);
}

@media (max-width: 700px) {
  .iran-libro .cover-display::before,
  .iran-libro .cover-display::after { display: none; }
}

/* ─── Sinopsis ────────────────────────────────────────────────────────── */

.iran-libro .synopsis {
  max-width: 720px;
  margin: 4rem auto;
  padding: 0 2rem;
  text-align: center;
}

.iran-libro .synopsis p {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.3rem;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0 0 1.5rem;
}

.iran-libro .synopsis p strong { color: var(--terracota); font-weight: 500; font-style: normal; }

/* ─── Cita ────────────────────────────────────────────────────────────── */

.iran-libro .quote {
  max-width: 800px;
  margin: 5rem auto;
  padding: 3rem 2rem;
  text-align: center;
  position: relative;
  background: var(--bg-alt);
  border-radius: 4px;
}

.iran-libro .quote::before {
  content: "";
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--turquoise), transparent);
}

.iran-libro .quote::after {
  content: "";
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--turquoise), transparent);
}

.iran-libro .quote blockquote {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  line-height: 1.5;
  color: var(--ink);
  margin: 0;
}

.iran-libro .quote cite {
  display: block;
  margin-top: 1.5rem;
  font-family: var(--sans);
  font-style: normal;
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--terracota);
}

/* ─── Índice ──────────────────────────────────────────────────────────── */

.iran-libro .toc {
  max-width: 900px;
  margin: 5rem auto;
  padding: 0 2rem;
}

.iran-libro .toc-head {
  text-align: center;
  margin-bottom: 3rem;
}

.iran-libro .toc-head .label {
  font-size: 0.7rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--terracota);
  margin-bottom: 0.5rem;
  display: block;
}

.iran-libro .toc-head h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0;
}

.iran-libro .toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
}

@media (max-width: 700px) {
  .iran-libro .toc-list { grid-template-columns: 1fr; }
}

.iran-libro .toc-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1.25rem 1.5rem;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  transition: background 0.25s ease, color 0.25s ease;
}

.iran-libro .toc-item:nth-child(2n) { border-right: none; }

@media (max-width: 700px) {
  .iran-libro .toc-item:nth-child(2n) { border-right: none; }
  .iran-libro .toc-item { border-right: none; }
}

.iran-libro .toc-item:hover {
  background: var(--bg-alt);
  color: var(--turquoise-dark);
}

.iran-libro .toc-num {
  font-family: var(--serif);
  font-weight: 500;
  color: var(--terracota);
  font-size: 1.2rem;
  min-width: 2.5rem;
}

.iran-libro .toc-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.1rem;
  line-height: 1.3;
}

.iran-libro .toc-arrow {
  color: var(--ink-mute);
  font-size: 1.1rem;
  transition: transform 0.25s ease, color 0.25s ease;
}

.iran-libro .toc-item:hover .toc-arrow {
  color: var(--turquoise);
  transform: translateX(4px);
}

.iran-libro .toc-item.is-disabled {
  opacity: 0.45;
  pointer-events: none;
}

/* ─── Colophon ────────────────────────────────────────────────────────── */

.iran-libro .colophon-c {
  max-width: 720px;
  margin: 4rem auto 0;
  padding: 2.5rem 2rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.7;
  position: relative;
}

.iran-libro .colophon-c strong {
  display: block;
  font-family: var(--serif);
  font-style: italic;
  color: var(--turquoise);
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

/* ─── Capítulo ────────────────────────────────────────────────────────── */

.iran-libro .chapter-page {
  position: relative;
  padding-top: 4rem;
}

.iran-libro .chapter-page::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 8px;
  background-image:
    linear-gradient(45deg, var(--turquoise) 25%, transparent 25%),
    linear-gradient(-45deg, var(--turquoise) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--turquoise) 75%),
    linear-gradient(-45deg, transparent 75%, var(--turquoise) 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
  opacity: 0.55;
}

.iran-libro .chapter-head {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 2rem 0;
  text-align: center;
}

.iran-libro .chapter-head .num {
  display: inline-block;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--terracota);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.iran-libro .chapter-head h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.1;
  margin: 0;
  color: var(--ink);
}

.iran-libro .chapter-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.iran-libro .chapter-body p {
  margin: 0 0 1.4rem;
  text-align: left;
}

.iran-libro .chapter-body h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.85rem;
  line-height: 1.2;
  margin: 3rem 0 1.25rem;
  color: var(--turquoise-dark);
  position: relative;
  padding-top: 1.5rem;
}

.iran-libro .chapter-body h2::before {
  content: "◆ ◇ ◆";
  display: block;
  text-align: center;
  color: var(--terracota);
  font-size: 0.7rem;
  letter-spacing: 1rem;
  margin-bottom: 1.5rem;
  font-weight: 400;
  font-family: var(--sans);
}

.iran-libro .chapter-body h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.35rem;
  line-height: 1.25;
  margin: 2rem 0 0.75rem;
  color: var(--ink);
  font-style: italic;
}

.iran-libro .chapter-body ul,
.iran-libro .chapter-body ol {
  margin: 0 0 1.5rem;
  padding-left: 1.4rem;
}

.iran-libro .chapter-body li {
  margin-bottom: 0.7rem;
  line-height: 1.7;
}

.iran-libro .chapter-body ul.diff-list li {
  list-style: none;
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.iran-libro .chapter-body ul.diff-list li::before {
  content: "◆";
  position: absolute;
  left: 0;
  top: 0.3rem;
  color: var(--terracota);
  font-size: 0.7rem;
}

.iran-libro .chapter-body strong {
  color: var(--turquoise-dark);
  font-weight: 600;
}

.iran-libro .chapter-body em {
  font-style: italic;
}

.iran-libro .chapter-body p.lead {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.4rem;
  line-height: 1.5;
  color: var(--ink-soft);
  font-style: italic;
  margin-bottom: 2.5rem;
}

.iran-libro .chapter-body p.lead::first-letter {
  font-family: var(--serif);
  font-style: normal;
  font-weight: 700;
  font-size: 5rem;
  float: left;
  line-height: 0.85;
  margin: 0.3rem 0.6rem 0 0;
  color: var(--turquoise);
}

.iran-libro .pull-quote {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
  font-size: 1.6rem;
  line-height: 1.4;
  color: var(--turquoise-dark);
  text-align: center;
  margin: 3rem 0;
  padding: 2rem 1rem;
  border: none;
  position: relative;
}

.iran-libro .pull-quote::before,
.iran-libro .pull-quote::after {
  content: "◆";
  display: block;
  color: var(--terracota);
  font-size: 0.8rem;
  margin: 0.75rem 0;
}

.iran-libro .closing {
  font-family: var(--serif);
  font-weight: 500;
  font-style: italic;
  font-size: 1.25rem;
  text-align: center;
  color: var(--ink);
  margin: 3rem 0;
  padding: 2rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.iran-libro .chapter-figure {
  margin: 3rem 0;
  text-align: center;
}

.iran-libro .chapter-figure img {
  width: 100%;
  height: auto;
  border-radius: 2px;
  box-shadow: 0 8px 24px -10px rgba(31, 42, 48, 0.25);
}

.iran-libro .chapter-figure figcaption {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--ink-mute);
  margin-top: 0.75rem;
}

/* ─── Nav capítulos ───────────────────────────────────────────────────── */

.iran-libro .chapter-nav {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem;
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  border-top: 1px solid var(--rule);
}

.iran-libro .chapter-nav a {
  display: inline-flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--ink);
  max-width: 45%;
}

.iran-libro .chapter-nav a small {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--terracota);
  margin-bottom: 0.5rem;
}

.iran-libro .chapter-nav a strong {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.2rem;
  line-height: 1.2;
}

.iran-libro .chapter-nav .next { text-align: right; align-items: flex-end; }
.iran-libro .chapter-nav a:hover strong { color: var(--turquoise); }