/* ==========================================================
   Pasemos al Otro Lado — hoja de estilos (boceto v1)
   Paleta tomada del forro de El Dios Prestado
   ========================================================== */

:root {
  --carbon: #2b2926;
  --carbon-2: #34312d;
  --carbon-3: #3d3934;
  --carbon-line: rgba(239, 232, 220, 0.12);
  --papel: #f6f1e8;
  --papel-2: #ede5d7;
  --tarjeta: #fcf9f3;
  --tinta: #2b2926;
  --tinta-suave: #6a6157;
  --crema: #efe8dc;
  --crema-suave: #c9bfb0;

  --oro: #c4a271;
  --oro-claro: #dcc196;
  --oro-oscuro: #8f6f42;
  --linea: #e0d6c6;

  --serif: "Noto Serif", Georgia, "Times New Roman", serif;
  --sans: "Noto Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

  --ancho: 1200px;
  --ancho-texto: 640px;
  --radio: 4px;
  --radio-lg: 14px;
  --sombra: 0 1px 2px rgba(43,41,38,.04), 0 12px 32px -12px rgba(43,41,38,.18);
  --sombra-alta: 0 2px 4px rgba(43,41,38,.05), 0 30px 60px -20px rgba(43,41,38,.35);
  --ease: cubic-bezier(.22, .8, .24, 1);

  --grano: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 .55 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--papel);
  color: var(--tinta);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
::selection { background: var(--oro); color: var(--carbon); }

.contenedor { width: 100%; max-width: var(--ancho); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .contenedor { padding: 0 40px; } }

/* ---------- Tipografía ---------- */

.antetitulo {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--sans); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--oro-oscuro); margin: 0 0 1.25rem;
}
.antetitulo::before { content: ""; width: 28px; height: 1px; background: currentColor; opacity: .7; }
.centrado .antetitulo::after { content: ""; width: 28px; height: 1px; background: currentColor; opacity: .7; }
.oscuro .antetitulo { color: var(--oro); }

h1, h2, h3 {
  font-family: var(--serif); font-weight: 400; line-height: 1.12;
  margin: 0 0 1rem; text-wrap: balance; letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.7rem, 7vw, 5.4rem); line-height: 1.02; letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3.1rem); }
h3 { font-size: 1.35rem; font-weight: 500; }
p { margin: 0 0 1rem; text-wrap: pretty; }
em, .cursiva { font-family: var(--serif); font-style: italic; }

.lead { font-size: clamp(1.08rem, 1.6vw, 1.25rem); line-height: 1.65; color: var(--tinta-suave); max-width: var(--ancho-texto); }
.oscuro .lead { color: var(--crema-suave); }
.oro { color: var(--oro); }
.oro-oscuro { color: var(--oro-oscuro); }

.filete { width: 56px; height: 1px; border: 0; background: var(--oro); margin: 1.75rem 0; }
.filete.centro { margin-left: auto; margin-right: auto; }

.pendiente { color: var(--tinta-suave); opacity: .75; font-size: .9rem; font-style: italic; }
.oscuro .pendiente { color: #a89f92; }

.barras { display: grid; gap: 10px; max-width: var(--ancho-texto); margin: .5rem 0 1.25rem; }
.barras span { height: 9px; border-radius: 6px; background: linear-gradient(90deg, #e6dccb, #efe7da); }
.barras span:nth-child(2) { width: 92%; } .barras span:nth-child(3) { width: 76%; } .barras span:nth-child(4) { width: 58%; }
.oscuro .barras span { background: linear-gradient(90deg, #45403a, #3a3632); }

/* ---------- Animaciones de entrada ---------- */

.revelar {
  opacity: 0; transform: translateY(28px);
  transition: opacity 1s var(--ease), transform 1s var(--ease), filter 1s var(--ease);
  transition-delay: var(--d, 0ms);
  filter: blur(4px);
}
.revelar.visible { opacity: 1; transform: none; filter: none; }
.revelar.izq { transform: translateX(-36px); }
.revelar.der { transform: translateX(36px); }
.revelar.zoom { transform: scale(.96); }
.revelar.izq.visible, .revelar.der.visible, .revelar.zoom.visible { transform: none; }

/* Entrada del hero */
.entra { opacity: 0; animation: entrar 1.1s var(--ease) forwards; animation-delay: var(--d, 0ms); }
@keyframes entrar {
  from { opacity: 0; transform: translateY(24px); filter: blur(6px); }
  to   { opacity: 1; transform: none; filter: none; }
}
.linea-titulo { display: block; overflow: hidden; padding-bottom: .08em; }
.linea-titulo > span { display: inline-block; transform: translateY(105%); animation: subir 1.2s var(--ease) forwards; animation-delay: var(--d, 0ms); }
@keyframes subir { to { transform: none; } }

.pagina { animation: pagina .7s var(--ease); }
@keyframes pagina { from { opacity: 0; } to { opacity: 1; } }

/* ---------- Botones ---------- */

.botones { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 2.25rem; }
.btn {
  position: relative; overflow: hidden; isolation: isolate;
  display: inline-flex; align-items: center; justify-content: center; gap: .75em;
  min-height: 52px; padding: .85rem 1.7rem;
  font-family: var(--sans); font-size: .78rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase; text-decoration: none;
  border: 1px solid transparent; border-radius: 999px; cursor: pointer;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), background .3s, color .3s, border-color .3s;
}
.btn svg { transition: transform .4s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn:hover { transform: translateY(-2px); }
.btn::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform .8s var(--ease);
}
.btn:hover::after { transform: translateX(120%); }
.btn-oro { background: linear-gradient(135deg, var(--oro-claro), var(--oro)); color: var(--carbon); box-shadow: 0 10px 30px -10px rgba(196,162,113,.6); }
.btn-oro:hover { box-shadow: 0 16px 40px -12px rgba(196,162,113,.75); }
.btn-linea { border-color: rgba(239,232,220,.35); color: inherit; background: rgba(255,255,255,.02); backdrop-filter: blur(6px); }
.btn-linea:hover { border-color: var(--oro); color: var(--oro-claro); }
.claro .btn-linea, .btn-linea.tinta { border-color: rgba(43,41,38,.25); }
.btn-linea.tinta:hover { border-color: var(--oro-oscuro); color: var(--oro-oscuro); }
.btn-tinta { background: var(--carbon); color: var(--crema); box-shadow: 0 10px 30px -14px rgba(43,41,38,.6); }
.btn-tinta:hover { background: var(--carbon-3); }

.enlace-flecha {
  display: inline-flex; align-items: center; gap: .6em;
  font-size: .78rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  text-decoration: none; color: var(--oro-oscuro);
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat;
  padding-bottom: 4px; transition: background-size .5s var(--ease);
}
.enlace-flecha:hover { background-size: 100% 1px; }
.enlace-flecha svg { transition: transform .4s var(--ease); }
.enlace-flecha:hover svg { transform: translateX(4px); }
.oscuro .enlace-flecha { color: var(--oro); }

/* ---------- Encabezado ---------- */

.encabezado {
  position: fixed; top: 0; left: 0; right: 0; z-index: 40;
  color: var(--crema);
  transition: background .5s var(--ease), box-shadow .5s, backdrop-filter .5s;
}
.encabezado .contenedor {
  display: flex; align-items: center; justify-content: space-between;
  height: 84px; transition: height .5s var(--ease);
}
.encabezado.solido {
  background: rgba(36, 34, 31, .82);
  backdrop-filter: blur(14px) saturate(1.2); -webkit-backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: 0 1px 0 var(--carbon-line);
}
.encabezado.solido .contenedor { height: 66px; }

.marca { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--crema); position: relative; z-index: 2; }
.marca svg { flex: none; transition: transform .8s var(--ease); }
.marca:hover svg { transform: rotate(-12deg); }
.marca-texto { display: flex; flex-direction: column; line-height: 1.1; }
.marca-nombre { font-family: var(--serif); font-size: 1.08rem; letter-spacing: .02em; }
.marca-sub { white-space: nowrap; font-size: .58rem; letter-spacing: .26em; text-transform: uppercase; color: var(--oro); margin-top: 5px; }

.menu-btn {
  position: relative; z-index: 2;
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; padding: 0; border-radius: 50%;
  background: rgba(255,255,255,.04); border: 1px solid var(--carbon-line);
  color: var(--crema); cursor: pointer;
}
.menu-btn span, .menu-btn span::before {
  display: block; width: 18px; height: 1.5px; background: currentColor; position: relative;
  transition: transform .4s var(--ease), background .3s;
}
.menu-btn span::before { content: ""; position: absolute; top: 6px; left: 0; }
.menu-btn span { transform: translateY(-3px); }
.menu-btn[aria-expanded="true"] span { transform: rotate(45deg); }
.menu-btn[aria-expanded="true"] span::before { transform: translateY(-6px) rotate(-90deg); }

.nav {
  position: fixed; inset: 0; z-index: 1;
  background: radial-gradient(120% 70% at 80% 0%, #3b342b 0%, var(--carbon) 60%);
  display: flex; align-items: center; padding: 100px 24px 40px;
  opacity: 0; visibility: hidden; transition: opacity .5s var(--ease), visibility .5s;
}
.nav.abierto { opacity: 1; visibility: visible; }
.nav ul { list-style: none; margin: 0; padding: 0; width: 100%; }
.nav li { overflow: hidden; border-bottom: 1px solid var(--carbon-line); }
.nav a {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 16px 0; text-decoration: none; color: var(--crema);
  font-family: var(--serif); font-size: clamp(1.6rem, 7vw, 2.2rem);
  transform: translateY(100%); transition: transform .7s var(--ease), color .3s;
  transition-delay: calc(var(--i) * 60ms);
}
.nav a small { font-family: var(--sans); font-size: .7rem; letter-spacing: .2em; color: var(--oro); }
.nav.abierto a { transform: none; }
.nav a.activo, .nav a:hover { color: var(--oro); }
.nav-cta { display: none; }

@media (min-width: 1000px) {
  .menu-btn { display: none; }
  .nav { position: static; inset: auto; background: none; padding: 0; opacity: 1; visibility: visible; display: flex; gap: 28px; }
  .nav ul { display: flex; gap: 30px; width: auto; }
  .nav li { border: 0; overflow: visible; }
  .nav a {
    transform: none; padding: 8px 0; position: relative;
    font-family: var(--sans); font-size: .7rem; font-weight: 500; letter-spacing: .18em; text-transform: uppercase;
    color: #d8d0c3;
  }
  .nav a small { display: none; }
  .nav a::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--oro);
    transform: scaleX(0); transform-origin: right; transition: transform .5s var(--ease);
  }
  .nav a:hover::after, .nav a.activo::after { transform: scaleX(1); transform-origin: left; }
  .nav ul { gap: clamp(14px, 1.7vw, 28px); }
  .nav a { white-space: nowrap; letter-spacing: .15em; }
  .marca { margin-right: 28px; }
  .nav a.nav-cta {
    display: inline-flex; min-height: 42px; padding: .6rem 1.3rem;
    font-size: .66rem; font-weight: 600; color: var(--carbon);
  }
  .nav a.nav-cta::after {
    height: auto; inset: 0; bottom: auto; transform: translateX(-120%);
    background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
  }
  .nav a.nav-cta:hover::after { transform: translateX(120%); }
}
@media (min-width: 1000px) and (max-width: 1380px) { .marca-sub { display: none; } }
@media (min-width: 1000px) and (max-width: 1120px) { .nav-cta { display: none !important; } }

/* ---------- Secciones ---------- */

.seccion { position: relative; padding: 88px 0; }
@media (min-width: 720px) { .seccion { padding: 128px 0; } }
.oscuro { position: relative; background: var(--carbon); color: var(--crema); isolation: isolate; }
.oscuro::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image: var(--grano); opacity: .09; mix-blend-mode: soft-light;
}
.papel-2 { background: var(--papel-2); }
.centrado { text-align: center; }
.centrado .lead { margin-left: auto; margin-right: auto; }
.centrado .botones { justify-content: center; }

.encabezado-seccion { display: grid; gap: 24px; margin-bottom: 56px; }
@media (min-width: 900px) {
  .encabezado-seccion { grid-template-columns: 1.1fr 1fr; align-items: end; gap: 64px; }
  .encabezado-seccion .lead { margin: 0; }
}
.encabezado-seccion h2 { margin: 0; }

/* ---------- Hero ---------- */

.hero {
  position: relative; overflow: hidden;
  min-height: min(100svh, 920px);
  display: flex; flex-direction: column; justify-content: center;
  padding: 130px 0 0;
}
.hero-luz {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 55% at 78% 42%, rgba(220,193,150,.20), transparent 70%),
    radial-gradient(40% 40% at 10% 90%, rgba(196,162,113,.08), transparent 70%);
  animation: respirar 9s ease-in-out infinite alternate;
}
@keyframes respirar { from { opacity: .75; } to { opacity: 1; } }

.hero-rejilla { display: grid; gap: 56px; align-items: center; padding-bottom: 40px; }
@media (min-width: 960px) { .hero-rejilla { grid-template-columns: 1.15fr .85fr; gap: 72px; } }
.hero h1 { margin-bottom: 1.5rem; }
.hero h1 em { color: var(--oro); font-weight: 400; }

.hero-arco { position: relative; width: 100%; max-width: 440px; margin: 0 auto; }
@media (max-width: 959px) { .hero-arco { max-width: 300px; } }
.hero-arco svg { width: 100%; height: auto; display: block; overflow: visible; }
.arco-sol { animation: sol 10s ease-in-out infinite alternate; transform-origin: center; transform-box: fill-box; }
@keyframes sol { from { transform: translateY(14px); } to { transform: translateY(-10px); } }
.onda { animation: ondear linear infinite; }
.onda-1 { animation-duration: 14s; } .onda-2 { animation-duration: 20s; animation-direction: reverse; } .onda-3 { animation-duration: 28s; }
@keyframes ondear { from { transform: translateX(0); } to { transform: translateX(-200px); } }
.arco-borde { stroke-dasharray: 1600; stroke-dashoffset: 1600; animation: trazar 2.6s var(--ease) .4s forwards; }
@keyframes trazar { to { stroke-dashoffset: 0; } }
.arco-orbita { animation: girar 60s linear infinite; transform-origin: 200px 230px; }
@keyframes girar { to { transform: rotate(360deg); } }

.hero-pie {
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  padding: 22px 0; border-top: 1px solid var(--carbon-line);
  font-size: .7rem; letter-spacing: .22em; text-transform: uppercase; color: var(--crema-suave);
}
.hero-pie .cita-pie { font-family: var(--serif); font-style: italic; text-transform: none; letter-spacing: 0; font-size: .95rem; }
.indicador { display: inline-flex; align-items: center; gap: 12px; }
.indicador i { width: 1px; height: 34px; background: linear-gradient(var(--oro), transparent); position: relative; overflow: hidden; }
.indicador i::after { content: ""; position: absolute; left: 0; top: -12px; width: 1px; height: 12px; background: var(--crema); animation: gota 2.2s var(--ease) infinite; }
@keyframes gota { to { top: 100%; } }

/* Cabecera interior */
.cabecera { min-height: auto; padding: 170px 0 0; }
.cabecera .contenedor { padding-bottom: 72px; }
.migas { font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; color: var(--crema-suave); margin-bottom: 2rem; }
.migas a { text-decoration: none; } .migas a:hover { color: var(--oro); }
.migas span { margin: 0 10px; color: var(--oro); }
.cabecera-ondas { position: absolute; left: 0; right: 0; bottom: 0; height: 90px; color: var(--oro); opacity: .5; pointer-events: none; }
.cabecera-ondas svg { width: 200%; height: 100%; }

/* ---------- Marquesina ---------- */

.marquesina {
  overflow: hidden; background: var(--oro); color: var(--carbon);
  border-block: 1px solid rgba(43,41,38,.15);
}
.marquesina-pista { display: flex; width: max-content; animation: deslizar 40s linear infinite; }
.marquesina:hover .marquesina-pista { animation-play-state: paused; }
.marquesina span {
  display: inline-flex; align-items: center; gap: 28px; padding: 20px 14px;
  font-family: var(--serif); font-size: clamp(1.1rem, 2vw, 1.45rem); font-style: italic; white-space: nowrap;
}
.marquesina span::after { content: ""; width: 6px; height: 6px; border: 1px solid currentColor; transform: rotate(45deg); margin-left: 14px; }
@keyframes deslizar { to { transform: translateX(-50%); } }

/* ---------- Tarjetas ---------- */

.rejilla { display: grid; gap: 20px; }
@media (min-width: 720px) { .rejilla-2 { grid-template-columns: repeat(2, 1fr); gap: 28px; } }
@media (min-width: 900px) { .rejilla-3 { grid-template-columns: repeat(3, 1fr); gap: 28px; } }

.tarjeta {
  position: relative; overflow: hidden;
  padding: 36px 30px 32px;
  background: var(--tarjeta);
  border: 1px solid var(--linea); border-radius: var(--radio-lg);
  box-shadow: var(--sombra);
  transition: transform .6s var(--ease), box-shadow .6s var(--ease), border-color .4s;
}
.tarjeta::before {
  content: ""; position: absolute; left: 0; top: 0; height: 2px; width: 100%;
  background: linear-gradient(90deg, var(--oro), var(--oro-claro));
  transform: scaleX(0); transform-origin: left; transition: transform .7s var(--ease);
}
.tarjeta:hover { transform: translateY(-6px); box-shadow: var(--sombra-alta); border-color: #d3c4ab; }
.tarjeta:hover::before { transform: scaleX(1); }
.tarjeta .icono {
  display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #fff8ec, #efe3cf);
  color: var(--oro-oscuro); margin-bottom: 28px;
  border: 1px solid #eadcc5;
  transition: transform .6s var(--ease);
}
.tarjeta:hover .icono { transform: rotate(-8deg) scale(1.06); }
.tarjeta .num {
  position: absolute; right: 22px; top: 14px;
  font-family: var(--serif); font-size: 4.2rem; line-height: 1; color: rgba(143,111,66,.10);
  transition: color .5s, transform .6s var(--ease);
}
.tarjeta:hover .num { color: rgba(143,111,66,.2); transform: translateY(-4px); }
.oscuro .tarjeta { background: linear-gradient(160deg, var(--carbon-3), var(--carbon-2)); border-color: var(--carbon-line); box-shadow: none; }
.oscuro .tarjeta .num { color: rgba(196,162,113,.12); }
.oscuro .tarjeta .icono { background: rgba(196,162,113,.08); border-color: rgba(196,162,113,.25); color: var(--oro); }

/* ---------- Cita ---------- */

.cita-seccion { overflow: hidden; }
.cita-fondo {
  position: absolute; left: 50%; top: 50%; z-index: 0;
  font-family: var(--serif); font-size: clamp(10rem, 32vw, 26rem); line-height: 1;
  color: rgba(143,111,66,.07); white-space: nowrap; pointer-events: none;
  transform: translate(-50%, calc(-50% + var(--p, 0px)));
}
.cita {
  position: relative; z-index: 1; max-width: 860px; margin: 0 auto;
  font-family: var(--serif); font-size: clamp(1.7rem, 4vw, 3rem); line-height: 1.3;
  font-style: italic; text-align: center;
}
.cita .comillas { display: block; font-size: 4.5rem; line-height: .6; color: var(--oro); font-style: normal; margin-bottom: 1.25rem; }
.cita small {
  display: block; margin-top: 1.75rem;
  font-family: var(--sans); font-style: normal; font-size: .72rem;
  letter-spacing: .24em; text-transform: uppercase; color: var(--oro-oscuro);
}

/* ---------- Pasos / línea de tiempo ---------- */

.dos-columnas { display: grid; gap: 56px; align-items: center; }
@media (min-width: 960px) {
  .dos-columnas { grid-template-columns: 1fr 1fr; gap: 88px; }
  .dos-columnas.libro { grid-template-columns: 5fr 7fr; }
  .pegajoso { position: sticky; top: 120px; align-self: start; }
}

.linea-tiempo { list-style: none; margin: 0; padding: 0; position: relative; }
.linea-tiempo::before {
  content: ""; position: absolute; left: 23px; top: 8px; bottom: 8px; width: 1px; background: var(--linea);
}
.linea-tiempo::after {
  content: ""; position: absolute; left: 23px; top: 8px; width: 1px;
  height: calc((100% - 16px) * var(--progreso, 0));
  background: linear-gradient(var(--oro), var(--oro-oscuro));
  transition: height .2s linear;
}
.linea-tiempo li { position: relative; padding: 0 0 44px 76px; }
.linea-tiempo li:last-child { padding-bottom: 0; }
.linea-tiempo .punto {
  position: absolute; left: 0; top: 0; z-index: 1;
  display: grid; place-items: center; width: 47px; height: 47px; border-radius: 50%;
  background: var(--papel); border: 1px solid var(--linea);
  font-size: .72rem; font-weight: 600; letter-spacing: .08em; color: var(--oro-oscuro);
  transition: background .6s var(--ease), color .6s, border-color .6s, box-shadow .6s;
}
.linea-tiempo li.visible .punto { background: var(--carbon); color: var(--oro); border-color: var(--carbon); box-shadow: 0 0 0 6px rgba(196,162,113,.15); }
.papel-2 .linea-tiempo .punto { background: var(--papel-2); }
.papel-2 .linea-tiempo li.visible .punto { background: var(--carbon); }
.linea-tiempo h3 { margin: 8px 0 .5rem; }

/* ---------- Libro ---------- */

.libro-seccion { overflow: hidden; }
.libro-seccion .luz {
  position: absolute; left: -10%; top: 50%; width: 70%; aspect-ratio: 1; transform: translateY(-50%);
  background: radial-gradient(circle, rgba(220,193,150,.18), transparent 62%); z-index: -1; pointer-events: none;
}
.portada-3d { perspective: 1400px; display: grid; place-items: center; }
.portada-3d .libro-obj {
  position: relative; width: 100%; max-width: 360px;
  transform-style: preserve-3d;
  transform: rotateY(var(--ry, -16deg)) rotateX(var(--rx, 4deg));
  transition: transform .8s var(--ease);
  animation: flotar 7s ease-in-out infinite alternate;
}
@keyframes flotar { from { translate: 0 0; } to { translate: 0 -14px; } }
.portada-3d img {
  width: 100%; border-radius: 2px 6px 6px 2px;
  box-shadow: 30px 40px 70px -20px rgba(0,0,0,.7), 0 0 0 1px rgba(255,255,255,.05);
}
.portada-3d .libro-obj::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 14px; z-index: 1;
  background: linear-gradient(90deg, rgba(0,0,0,.45), rgba(255,255,255,.08) 45%, rgba(0,0,0,.2));
  border-radius: 2px 0 0 2px;
}
.portada-3d .brillo {
  position: absolute; inset: 0; z-index: 2; pointer-events: none; border-radius: 2px 6px 6px 2px;
  background: linear-gradient(115deg, transparent 35%, rgba(255,240,215,.16) 50%, transparent 65%);
  background-size: 250% 100%; background-position: var(--bx, 100%) 0;
  transition: background-position .8s var(--ease);
}
.edp-titulo { font-size: clamp(3rem, 8vw, 5.6rem); letter-spacing: .01em; line-height: .98; text-transform: uppercase; }
.edp-titulo span { display: block; }
.etiquetas { display: flex; flex-wrap: wrap; gap: 8px; margin: 1.5rem 0 0; padding: 0; list-style: none; }
.etiquetas li {
  font-size: .68rem; letter-spacing: .16em; text-transform: uppercase;
  padding: 7px 14px; border: 1px solid var(--carbon-line); border-radius: 999px; color: var(--crema-suave);
}

.edp-hero { min-height: min(100svh, 940px); }
.edp-hero .fondo {
  position: absolute; inset: -40px; z-index: -2;
  background: url("../img/edp-arte.jpg") center 30% / cover no-repeat;
  opacity: .22; filter: saturate(.85) blur(1px);
  transform: translateY(var(--p, 0px)) scale(1.05);
}
.edp-hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(43,41,38,.55), var(--carbon) 70%), linear-gradient(0deg, var(--carbon), transparent 40%);
}
@media (max-width: 959px) { .edp-hero::before { background: linear-gradient(0deg, var(--carbon) 30%, rgba(43,41,38,.7)); } }

.lista-guion { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.lista-guion li {
  position: relative; padding: 16px 0 16px 2.25rem; border-bottom: 1px solid var(--linea);
}
.lista-guion li::before { content: "—"; position: absolute; left: 0; color: var(--oro-oscuro); }
.oscuro .lista-guion li { border-color: var(--carbon-line); }
.oscuro .lista-guion li::before { color: var(--oro); }

/* ---------- Foto ---------- */

.marco-foto {
  position: relative; aspect-ratio: 4 / 5; width: 100%; max-width: 440px;
  display: grid; place-items: center; border-radius: 220px 220px var(--radio-lg) var(--radio-lg);
  background:
    radial-gradient(80% 60% at 50% 20%, rgba(255,255,255,.6), transparent),
    repeating-linear-gradient(135deg, #e9e0d0 0 12px, #e3d9c7 12px 24px);
  border: 1px solid var(--linea);
  color: var(--tinta-suave); font-size: .72rem; letter-spacing: .2em; text-transform: uppercase;
}
.marco-foto::after {
  content: ""; position: absolute; inset: -14px; border: 1px solid var(--oro); opacity: .5;
  border-radius: 234px 234px 20px 20px; pointer-events: none;
}

/* ---------- Recursos ---------- */

.recurso { display: flex; flex-direction: column; height: 100%; }
.recurso .etiqueta {
  align-self: flex-start;
  font-size: .64rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 20px; margin-bottom: 1.5rem;
  background: #f3eadb; color: var(--oro-oscuro);
}
.recurso .pie {
  margin-top: auto; padding-top: 1.25rem; border-top: 1px solid var(--linea);
  display: flex; justify-content: space-between; align-items: center;
  font-size: .8rem; color: var(--tinta-suave);
}

/* ---------- Preguntas ---------- */

.pregunta { border-top: 1px solid var(--linea); }
.pregunta:last-child { border-bottom: 1px solid var(--linea); }
.pregunta summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 24px;
  padding: 26px 0; font-family: var(--serif); font-size: clamp(1.15rem, 2vw, 1.4rem);
  transition: color .3s;
}
.pregunta summary::-webkit-details-marker { display: none; }
.pregunta summary:hover { color: var(--oro-oscuro); }
.pregunta .mas {
  flex: none; width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--linea);
  display: grid; place-items: center; transition: transform .5s var(--ease), background .3s;
}
.pregunta[open] .mas { transform: rotate(45deg); background: var(--carbon); color: var(--oro); border-color: var(--carbon); }
.pregunta .respuesta { padding: 0 0 26px; animation: entrar .6s var(--ease); }

/* ---------- Llamado final ---------- */

.llamado {
  position: relative; overflow: hidden; isolation: isolate;
  border-radius: 28px; padding: 72px 24px;
  background: radial-gradient(90% 120% at 50% 110%, #5a4a35 0%, var(--carbon) 60%);
  color: var(--crema); text-align: center;
}
@media (min-width: 720px) { .llamado { padding: 104px 64px; } }
.llamado::after { content: ""; position: absolute; inset: 0; z-index: -1; background-image: var(--grano); opacity: .1; mix-blend-mode: soft-light; }
.llamado .anillos { position: absolute; left: 50%; bottom: -60%; width: 900px; transform: translateX(-50%); z-index: -1; color: var(--oro); opacity: .35; }
.llamado .lead { color: var(--crema-suave); margin-left: auto; margin-right: auto; }
.llamado .antetitulo { color: var(--oro); }

/* ---------- Formulario ---------- */

.contacto-rejilla { display: grid; gap: 56px; }
@media (min-width: 960px) { .contacto-rejilla { grid-template-columns: .8fr 1.2fr; gap: 88px; } }
.formulario {
  display: grid; gap: 22px; padding: 36px 28px; background: var(--tarjeta);
  border: 1px solid var(--linea); border-radius: var(--radio-lg); box-shadow: var(--sombra);
}
@media (min-width: 720px) { .formulario { padding: 48px; } .fila-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; } }
.fila-2 { display: grid; gap: 22px; }
.campo label {
  display: block; margin-bottom: 8px;
  font-size: .68rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--tinta-suave);
}
.campo input, .campo select, .campo textarea {
  width: 100%; padding: 15px 16px; font: inherit; font-size: 1rem; color: var(--tinta);
  background: var(--papel); border: 1px solid var(--linea); border-radius: 10px;
  transition: border-color .3s, box-shadow .3s, background .3s;
}
.campo input:focus, .campo select:focus, .campo textarea:focus {
  outline: none; background: #fff; border-color: var(--oro); box-shadow: 0 0 0 4px rgba(196,162,113,.18);
}
.campo textarea { min-height: 150px; resize: vertical; }
.campo-trampa { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.aviso { font-size: .92rem; padding: 14px 16px; border-radius: 10px; background: #f1e8d8; border-left: 3px solid var(--oro); animation: entrar .5s var(--ease); }
.aviso.error { background: #f6e3dc; border-color: #a5523a; }
.contacto-dato { display: flex; gap: 16px; align-items: flex-start; padding: 20px 0; border-top: 1px solid var(--linea); }
.contacto-dato .icono { flex: none; width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; background: var(--papel-2); color: var(--oro-oscuro); }
.contacto-dato strong { display: block; font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; color: var(--tinta-suave); font-weight: 600; }

/* ---------- Pie ---------- */

.pie-sitio { padding: 96px 0 32px; color: var(--crema-suave); font-size: .92rem; overflow: hidden; }
.pie-sitio .rejilla { gap: 40px; }
@media (min-width: 820px) { .pie-sitio .rejilla { grid-template-columns: 2fr 1fr 1fr; } }
.pie-sitio h4 { font-size: .68rem; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; color: var(--oro); margin: 0 0 1.25rem; }
.pie-sitio ul { list-style: none; padding: 0; margin: 0; }
.pie-sitio li { margin-bottom: .65rem; }
.pie-sitio a { text-decoration: none; transition: color .3s; }
.pie-sitio a:hover { color: var(--oro); }
.pie-marca {
  font-family: var(--serif); font-size: clamp(2.2rem, 8.2vw, 7.6rem); line-height: .95; letter-spacing: -.03em;
  color: transparent; -webkit-text-stroke: 1px rgba(196,162,113,.35);
  margin: 72px 0 0; white-space: nowrap;
}
.pie-legal {
  margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--carbon-line);
  font-size: .76rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px;
}

.sello-boceto {
  position: fixed; left: 12px; bottom: 12px; z-index: 50;
  font-size: .62rem; letter-spacing: .18em; text-transform: uppercase;
  background: var(--oro); color: var(--carbon); padding: 6px 10px; border-radius: 999px;
}

/* Accesibilidad */
:focus-visible { outline: 2px solid var(--oro); outline-offset: 3px; }
.solo-lector { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .revelar, .entra, .linea-titulo > span { opacity: 1 !important; transform: none !important; filter: none !important; }
  .marquesina-pista { animation: none; }
}

/* ==========================================================
   v2 — bloques de contenido
   ========================================================== */

.rejilla-4 { display: grid; gap: 20px; }
@media (min-width: 640px) { .rejilla-4 { grid-template-columns: repeat(2, 1fr); gap: 24px; } }
@media (min-width: 1100px) { .rejilla-4 { grid-template-columns: repeat(4, 1fr); } }

.texto-tarjeta { margin: 0; font-size: .97rem; line-height: 1.65; color: var(--tinta-suave); }
.oscuro .texto-tarjeta, .texto-oscuro, .texto-oscuro p { color: var(--crema-suave); }
.linea-tiempo .texto-tarjeta { max-width: 46ch; }

.parrafos p { margin-bottom: 1.25rem; }
.parrafos p:last-child { margin-bottom: 0; }
.parrafos.grande p { font-size: clamp(1.05rem, 1.5vw, 1.2rem); line-height: 1.75; }
.parrafos.grande p:first-child::first-letter {
  float: left; font-family: var(--serif); font-size: 4.2em; line-height: .82;
  padding: .06em .12em 0 0; color: var(--oro-oscuro);
}

.autor-linea { font-size: .78rem; letter-spacing: .2em; text-transform: uppercase; margin-top: 1.5rem; color: var(--crema); }
.frase-cierre { font-size: clamp(1.3rem, 2.4vw, 1.6rem); line-height: 1.45; margin-top: 2.25rem; }

/* Partes de cada encuentro (EDP) */
.partes { display: grid; gap: 14px; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 720px) { .partes { grid-template-columns: repeat(5, 1fr); gap: 18px; } }
.parte {
  display: flex; flex-direction: column; align-items: center; gap: 16px; text-align: center;
  padding: 30px 14px; border-radius: var(--radio-lg);
  background: var(--tarjeta); border: 1px solid var(--linea);
  font-family: var(--serif); font-size: 1.08rem;
  transition: transform .6s var(--ease), box-shadow .6s var(--ease);
}
.parte:hover { transform: translateY(-5px); box-shadow: var(--sombra-alta); }
.parte .icono {
  display: grid; place-items: center; width: 60px; height: 60px; border-radius: 50%;
  background: var(--carbon); color: var(--oro);
}
.partes .parte:last-child { grid-column: 1 / -1; }
@media (min-width: 720px) { .partes .parte:last-child { grid-column: auto; } }

/* Ficha del libro */
.ficha { margin: 2.25rem 0 0; display: grid; gap: 0; border-top: 1px solid var(--linea); }
.ficha div { display: grid; grid-template-columns: 110px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--linea); }
.ficha dt { font-size: .68rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--oro-oscuro); padding-top: 4px; }
.ficha dd { margin: 0; font-size: .95rem; }

.btn.deshabilitado { opacity: .6; cursor: default; pointer-events: none; }

.nota {
  margin: 48px auto 0; max-width: 720px; text-align: center;
  font-size: .95rem; color: var(--tinta-suave);
  padding: 20px 24px; border: 1px dashed #d6c8b1; border-radius: var(--radio-lg);
}

/* Propósito */
.proposito {
  max-width: 900px; margin: 0 auto 1.5rem;
  font-family: var(--serif); font-size: clamp(1.6rem, 3.6vw, 2.6rem); line-height: 1.3;
  text-wrap: balance;
}

/* Tesis */
.tesis {
  margin-top: 2.5rem; padding: 28px; border-radius: var(--radio-lg);
  background: rgba(239,232,220,.04); border: 1px solid var(--carbon-line);
}
.tesis .antetitulo { margin-bottom: .9rem; font-size: .64rem; }
.tesis .cursiva { font-size: 1.12rem; line-height: 1.5; color: var(--crema); margin-bottom: .75rem; }
.tesis small { display: block; font-size: .78rem; color: var(--oro); letter-spacing: .04em; }
.tesis-es { margin: 1rem 0 0; padding-top: 1rem; border-top: 1px solid var(--carbon-line); font-size: .9rem; color: var(--crema-suave); }

.marco-foto small { display: block; margin-top: 8px; font-size: .62rem; opacity: .7; }
.marco-foto span { text-align: center; }
.opcional { text-transform: none; letter-spacing: 0; font-weight: 400; opacity: .7; }
.oscuro .tarjeta h3.oro { color: var(--oro); }
.oscuro .lista-guion li { color: var(--crema); }

/* v3 — foto del autor y "Próximamente" */
.marco-foto.con-foto { overflow: hidden; background: #efe6d6; }
.marco-foto.con-foto img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 18%;
  border-radius: inherit; mix-blend-mode: multiply;
  transition: transform 1.4s var(--ease);
}
.marco-foto.con-foto::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none; border-radius: inherit;
  background: linear-gradient(180deg, rgba(246,236,218,.0) 55%, rgba(196,162,113,.18));
}
.marco-foto.con-foto:hover img { transform: scale(1.03); }

.sello-pronto {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 1.5rem;
  font-size: .68rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase;
  padding: 7px 14px 7px 12px; border-radius: 999px;
  color: var(--carbon); background: linear-gradient(135deg, var(--oro-claro), var(--oro));
}
.sello-pronto i { width: 7px; height: 7px; border-radius: 50%; background: var(--carbon); animation: latir 1.8s ease-in-out infinite; }
@keyframes latir { 50% { opacity: .25; transform: scale(.7); } }
.etiquetas li.pronto { color: var(--carbon); background: var(--oro); border-color: var(--oro); font-weight: 600; }
.contacto-dato a { text-decoration: none; color: var(--oro-oscuro); }
.contacto-dato a:hover { text-decoration: underline; }