/* Demos WS AgencIA — paleta de la casa: amarillo #FEE187 + Fraunces */
@font-face { font-family: "Fraunces"; src: url("/assets/fonts/Fraunces-600.ttf") format("truetype"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Fraunces"; src: url("/assets/fonts/Fraunces-700.ttf") format("truetype"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Inter"; src: url("/assets/fonts/Inter-400.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Inter"; src: url("/assets/fonts/Inter-600.ttf") format("truetype"); font-weight: 600; font-display: swap; }

:root {
  --amarillo: #FEE187;
  --amarillo-hondo: #F5C94A;
  --crema: #FFF9E8;
  --tinta: #1D1A14;
  --tinta-2: #4A4436;
  --suave: #7A715E;
  --linea: #E9DDB8;
  --verde-wa: #1F8F4E;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --radio: 18px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body { font-family: var(--sans); background: var(--crema); color: var(--tinta); line-height: 1.55; min-height: 100svh; overflow-x: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--tinta); outline-offset: 3px; border-radius: 6px; }

/* ---------- barra superior ---------- */
.barra { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .8rem clamp(1rem, 4vw, 2.5rem); background: rgba(255, 249, 232, .86); color: var(--tinta);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); transition: box-shadow .3s ease; }
.barra.con-sombra { box-shadow: 0 6px 24px rgba(60, 45, 10, .10); }
.marca { display: flex; align-items: center; gap: .6rem; text-decoration: none; font-family: var(--serif); font-weight: 700; font-size: 1.05rem; }
.marca-sello { width: 34px; height: 34px; border-radius: 10px; background: var(--amarillo); color: var(--tinta); display: grid; place-items: center; font-size: .82rem; letter-spacing: .02em; }
.volver { text-decoration: none; font-weight: 600; font-size: .9rem; padding: .45rem .9rem; border-radius: 999px; border: 1.5px solid var(--tinta); }
.volver:hover, .volver:focus-visible { background: var(--tinta); color: var(--crema); }

/* ---------- índice ---------- */
.portico { position: relative; padding: clamp(2.2rem, 7vw, 5rem) clamp(1rem, 5vw, 3rem) clamp(2.5rem, 6vw, 4rem); overflow: hidden; }
.portico-fondo { position: absolute; inset: 0; background: var(--amarillo); color: var(--tinta); clip-path: polygon(0 0, 100% 0, 100% 78%, 0 100%); z-index: -1; }
.portico-libro { position: absolute; right: -40px; top: 18px; width: clamp(140px, 26vw, 300px); aspect-ratio: .707; border-radius: 6px 14px 14px 6px;
  background: linear-gradient(100deg, #E8B83A 0 9%, var(--amarillo-hondo) 9% 100%); opacity: .55; transform: rotate(12deg); will-change: transform; z-index: -1; }
.ojo { font-weight: 600; letter-spacing: .16em; text-transform: uppercase; font-size: .74rem; color: var(--tinta-2); }
.portico h1 { font-family: var(--serif); font-weight: 700; font-size: clamp(2.1rem, 7vw, 3.8rem); line-height: 1.04; margin: .6rem 0 .9rem; max-width: 15ch;
  animation: asoma .9s cubic-bezier(.2, .7, .2, 1) both; }
.portico p { max-width: 54ch; font-size: clamp(1rem, 2.4vw, 1.15rem); color: var(--tinta-2); animation: asoma .9s .12s cubic-bezier(.2, .7, .2, 1) both; }

.vitrina { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); gap: 1.6rem; padding: 0 clamp(1rem, 5vw, 3rem) 3rem; max-width: 1180px; }
.tarjeta { position: relative; background: #FFFDF8; color: var(--tinta); border: 1px solid var(--linea); border-radius: var(--radio); padding: 1.3rem; display: grid; gap: 1rem;
  box-shadow: 0 10px 30px rgba(80, 60, 10, .08); }
.tarjeta.revela { opacity: 0; transform: scale(.96); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.tarjeta.revela.visto { opacity: 1; transform: none; }
.tarjeta-escena { perspective: 900px; display: grid; place-items: center; background: var(--amarillo); color: var(--tinta); border-radius: 12px; padding: 1.4rem 0; }
.tarjeta-libro { width: 58%; border-radius: 3px 8px 8px 3px; box-shadow: -6px 10px 22px rgba(60, 40, 0, .28); transform: rotateY(var(--gy, -14deg)) rotateX(var(--gx, 4deg)); transition: transform .25s ease; }
.etiqueta { display: inline-block; font-size: .72rem; font-weight: 600; padding: .25rem .6rem; border-radius: 999px; background: var(--crema); color: var(--tinta-2); border: 1px solid var(--linea); margin: 0 .3rem .3rem 0; }
.tarjeta h2 { font-family: var(--serif); font-weight: 700; font-size: 1.6rem; line-height: 1.1; }
.tarjeta p { color: var(--tinta-2); font-size: .95rem; }
.boton { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .85rem 1.3rem; border-radius: 999px; font-weight: 600; text-decoration: none;
  background: var(--tinta); color: var(--amarillo); border: 0; cursor: pointer; font-size: 1rem; transition: transform .2s ease, box-shadow .2s ease; }
.boton:hover, .boton:focus-visible { transform: scale(1.03); box-shadow: 0 8px 20px rgba(29, 26, 20, .25); }
.boton.wa { background: var(--verde-wa); color: #fff; }
.aviso { font-size: .8rem; color: var(--suave); }

.pie { padding: 2rem clamp(1rem, 5vw, 3rem) 2.4rem; border-top: 1px solid var(--linea); font-size: .85rem; color: var(--suave); }
.pie strong { color: var(--tinta); font-family: var(--serif); }

/* ---------- visor del libro ---------- */
.visor { display: grid; justify-items: center; gap: 1rem; padding: 1rem clamp(.6rem, 4vw, 2rem) 2rem; }
.visor-cabeza { text-align: center; }
.visor-cabeza h1 { font-family: var(--serif); font-weight: 700; font-size: clamp(1.4rem, 5vw, 2.2rem); line-height: 1.1; }
.visor-cabeza p { color: var(--tinta-2); font-size: .92rem; }
.escenario { --ancho: min(92vw, calc((100svh - 230px) * .7075), 560px); width: var(--ancho); aspect-ratio: 1241 / 1754; position: relative; perspective: 1800px; touch-action: pan-y; user-select: none; }
.hoja { position: absolute; inset: 0; border-radius: 4px 10px 10px 4px; overflow: hidden; background: #FBF4E2; color: var(--tinta);
  box-shadow: 0 2px 4px rgba(0, 0, 0, .08), 0 18px 40px rgba(70, 50, 10, .22); visibility: hidden; transform-origin: left center; }
.hoja img { width: 100%; height: 100%; object-fit: cover; }
.hoja.activa { visibility: visible; z-index: 2; }
.hoja.entra-adelante { visibility: visible; z-index: 3; animation: pasa-adelante .55s cubic-bezier(.3, .6, .2, 1) both; }
.hoja.entra-atras { visibility: visible; z-index: 3; animation: pasa-atras .55s cubic-bezier(.3, .6, .2, 1) both; }
.hoja::after { content: ""; position: absolute; inset: 0 auto 0 0; width: 14px; background: linear-gradient(90deg, rgba(0, 0, 0, .12), transparent); pointer-events: none; }

/* página de cierre (maqueta propia) */
.cierre { background: var(--amarillo); color: var(--tinta); display: flex; flex-direction: column; justify-content: space-between; padding: 9% 9% 7%; }
.cierre .ojo { font-size: clamp(.55rem, 1.8vw, .74rem); }
.cierre h2 { font-family: var(--serif); font-weight: 700; font-size: clamp(1.5rem, 6.4vw, 2.7rem); line-height: 1.05; margin: .7rem 0; }
.cierre p { font-size: clamp(.8rem, 2.6vw, 1rem); color: var(--tinta-2); }
.cierre ul { list-style: none; display: grid; gap: .45rem; margin: 1rem 0; font-size: clamp(.78rem, 2.5vw, .95rem); }
.cierre li::before { content: "✓"; font-weight: 700; margin-right: .5rem; }
.cierre .boton { align-self: flex-start; font-size: clamp(.8rem, 2.6vw, 1rem); }
.cierre-credito { font-size: clamp(.62rem, 2vw, .8rem); color: var(--tinta-2); border-top: 1.5px solid var(--tinta); padding-top: .6rem; }
.cierre-credito strong { font-family: var(--serif); color: var(--tinta); }

/* hoja ampliada: la página a su ancho natural, se recorre arrastrando, con pellizco o con la rueda */
.hoja:has(img) { cursor: zoom-in; }
.lupa { position: fixed; inset: 0; z-index: 50; background: rgba(29, 26, 20, .94); overflow: auto; overscroll-behavior: contain; touch-action: pan-x pan-y; cursor: grab; }
.lupa[hidden] { display: none; }
.lupa.arrastra { cursor: grabbing; }
.lupa img { max-width: none; width: 1241px; height: auto; margin: 0 auto; user-select: none; -webkit-user-drag: none; }
.lupa-cerrar { position: fixed; top: max(.8rem, env(safe-area-inset-top)); right: .8rem; z-index: 51; width: 48px; height: 48px; border-radius: 50%; border: 0;
  background: var(--amarillo); color: var(--tinta); font-size: 1.7rem; line-height: 1; cursor: pointer; box-shadow: 0 4px 14px rgba(0, 0, 0, .35); }
.lupa-cerrar[hidden] { display: none; }
html.con-lupa, html.con-lupa body { overflow: hidden; }

.mandos { display: flex; align-items: center; gap: .8rem; }
.flecha { width: 48px; height: 48px; border-radius: 50%; border: 1.5px solid var(--tinta); background: transparent; color: var(--tinta); font-size: 1.3rem; cursor: pointer; transition: background .2s ease; }
.flecha:hover:not(:disabled), .flecha:focus-visible { background: var(--amarillo); }
.flecha:disabled { opacity: .3; cursor: default; }
.contador { font-family: var(--serif); font-weight: 600; min-width: 4.5ch; text-align: center; }
.leyenda { max-width: 560px; text-align: center; font-size: .93rem; color: var(--tinta-2); min-height: 3em; }
.leyenda strong { color: var(--tinta); }
.leyenda.cambia { animation: aclara .45s ease both; }
.miniaturas { display: flex; gap: .5rem; overflow-x: auto; padding: .3rem; max-width: 100%; }
.mini { flex: 0 0 auto; width: 56px; aspect-ratio: 1241 / 1754; border-radius: 3px; overflow: hidden; border: 2px solid transparent; padding: 0; cursor: pointer; background: var(--amarillo); color: var(--tinta); opacity: .6; transition: opacity .2s ease, border-color .2s ease; }
.mini img { width: 100%; height: 100%; object-fit: cover; }
.mini span { display: grid; place-items: center; height: 100%; font-family: var(--serif); font-weight: 700; font-size: .7rem; }
.mini[aria-current="true"], .mini:hover, .mini:focus-visible { opacity: 1; border-color: var(--tinta); }
.progreso { width: var(--ancho, 92vw); max-width: 560px; height: 4px; background: var(--linea); border-radius: 4px; overflow: hidden; }
.progreso i { display: block; height: 100%; width: 20%; background: var(--tinta); transition: width .45s ease; }

@keyframes asoma { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@keyframes pasa-adelante { from { transform: rotateY(-75deg); opacity: .2; } to { transform: rotateY(0); opacity: 1; } }
@keyframes pasa-atras { from { transform: rotateY(60deg) scale(.96); opacity: .2; } to { transform: none; opacity: 1; } }
@keyframes aclara { from { opacity: 0; } to { opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .tarjeta.revela { opacity: 1; transform: none; }
}