/* ============================================================
   THE SPANISH FORUM — powered by Tilde Madrid
   Hoja de estilos del prototipo (v3 "Postales de España").
   Un solo archivo compartido por todas las plantillas.
   ============================================================ */

:root {
  --papel: #FBF5E9;
  --papel-sombra: #F0E5CE;
  --tinta: #26190F;
  --tinta-suave: #6B5D4F;
  --carmin: #C3272E;
  --carmin-oscuro: #8E1B21;
  --azulejo: #2E5E8C;
  --ocre: #E8A93B;
  --atardecer1: #FFD9A0;
  --atardecer2: #FFB37A;
  --atardecer3: #F98B60;
  --blanco: #FFFFFF;

  --a1: #7BAE5F; --a2: #4C9E82;
  --b1: #2E5E8C; --b2: #6A5AA8;
  --c1: #C3272E; --c2: #8A2432;

  --tipo-gramatica: #C3272E;
  --tipo-video: #2E5E8C;
  --tipo-imagen: #E8A93B;
  --tipo-test: #6A5AA8;
  --tipo-tips: #4C9E82;
  --tipo-noticias: #6B5D4F;

  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", system-ui, sans-serif;
  --mono: "Space Grotesk", monospace;

  --ancho: 1140px;
  --radio: 20px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-snap-type: y proximity; }

body {
  background: var(--papel);
  color: var(--tinta);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--carmin); }

.contenedor { max-width: var(--ancho); margin: 0 auto; padding: 0 24px; }

/* Cada bloque ocupa (casi) una pantalla y encaja al hacer scroll */
.bloque {
  min-height: 100vh;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 90px 0 60px;
}
.bloque > .contenedor { position: relative; z-index: 2; width: 100%; }

/* ============================================================
   ANIMACIONES DE ENTRADA
   ============================================================ */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.3,1); }
.reveal.visible { opacity: 1; transform: none; }
.reveal-zoom { opacity: 0; transform: scale(.92); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.3,1); }
.reveal-zoom.visible { opacity: 1; transform: scale(1); }
.reveal-1 { transition-delay: .08s; } .reveal-2 { transition-delay: .16s; }
.reveal-3 { transition-delay: .24s; } .reveal-4 { transition-delay: .32s; }
.reveal-5 { transition-delay: .40s; } .reveal-6 { transition-delay: .48s; }

/* ============================================================
   CABECERA
   ============================================================ */
.cabecera {
  background: rgba(251, 245, 233, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(38,25,15,.08);
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
}
/* Barra superior: aquí vive el "brought by Tilde Madrid", separado del logo */
.barra-tilde { background: var(--tinta); color: #D8CFC2; }
.barra-tilde-inner {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  font-family: var(--mono); font-size: .72rem; letter-spacing: .08em;
  padding: 7px 0; text-transform: uppercase;
}
.barra-tilde a { color: var(--ocre); text-decoration: none; transition: color .15s; }
.barra-tilde a strong { color: var(--blanco); }
.barra-tilde a:hover { color: var(--blanco); }
.barra-tilde .barra-lema { opacity: .8; }

.cabecera-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 0; flex-wrap: nowrap; }

/* Logo: sol-tilde + nombre en dos líneas, grande y legible */
.logo { text-decoration: none; color: var(--tinta); display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-marca { width: 46px; height: 46px; transition: transform .4s ease; }
.logo:hover .logo-marca { transform: rotate(14deg); }
.logo-texto { display: flex; flex-direction: column; line-height: 1; }
.logo-the {
  font-family: var(--serif); font-style: italic; font-size: .88rem;
  color: var(--tinta-suave); letter-spacing: .04em;
}
.logo-forum {
  font-family: var(--serif); font-weight: 900; font-size: 1.7rem;
  letter-spacing: .06em; color: var(--tinta); margin-top: 2px;
}
.logo-forum em { font-style: normal; color: var(--carmin); }

/* keyframes de la tilde del footer */
@keyframes tilde-saludo {
  0%, 88%, 100% { transform: rotate(6deg); }
  92% { transform: rotate(22deg); }
  96% { transform: rotate(-3deg); }
}
.logo-nombre { font-family: var(--serif); font-weight: 700; font-size: 1.25rem; position: relative; display: inline-block; }

.nav { display: flex; gap: 2px; flex-wrap: nowrap; align-items: center; white-space: nowrap; }
.nav > a, .nav-grupo > a {
  text-decoration: none; color: var(--tinta); font-size: .92rem; font-weight: 500;
  padding: 9px 12px; border-radius: 999px; position: relative; display: inline-block;
}
.nav > a:not(.nav-cta)::after, .nav-grupo > a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px;
  background: var(--carmin); border-radius: 2px; transform: scaleX(0); transform-origin: left; transition: transform .2s;
}
.nav > a:not(.nav-cta):hover::after, .nav-grupo:hover > a::after,
.nav a[aria-current="page"]:not(.nav-cta)::after { transform: scaleX(1); }
.nav .nav-cta { background: var(--carmin); color: var(--blanco); font-weight: 600; margin-left: 8px; transition: background .15s, transform .15s; }
.nav .nav-cta:hover { background: var(--carmin-oscuro); transform: translateY(-1px); }

/* Desplegable "Classroom material" (agrupa como el menú real) */
.nav-grupo { position: relative; }
.nav-desplegable {
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 220px;
  background: var(--blanco); border-radius: 14px; padding: 8px;
  box-shadow: 0 18px 44px rgba(38,25,15,.18);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
}
.nav-grupo:hover .nav-desplegable, .nav-grupo:focus-within .nav-desplegable {
  opacity: 1; visibility: visible; transform: none;
}
.nav-desplegable a {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--tinta); font-size: .92rem;
  padding: 10px 12px; border-radius: 10px; transition: background .15s;
}
.nav-desplegable a:hover { background: var(--papel); }
.nav-desplegable .punto { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }

/* ============================================================
   HERO — atardecer sobre Madrid
   ============================================================ */
.hero {
  min-height: 100vh;
  scroll-snap-align: start;
  position: relative;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  overflow: hidden;
  background: linear-gradient(180deg, var(--papel) 0%, var(--atardecer1) 45%, var(--atardecer2) 72%, var(--atardecer3) 100%);
}

/* Sol que asoma tras el skyline */
.hero-sol {
  position: absolute; left: 50%; bottom: 6vh; transform: translateX(-50%);
  width: min(46vh, 380px); height: min(46vh, 380px); border-radius: 50%;
  background: radial-gradient(circle, #FFE9B8 0%, var(--ocre) 60%, rgba(232,169,59,0) 72%);
  animation: sol-latido 7s ease-in-out infinite;
}
@keyframes sol-latido {
  0%, 100% { transform: translateX(-50%) scale(1); opacity: .9; }
  50% { transform: translateX(-50%) scale(1.06); opacity: 1; }
}

/* Skyline de Madrid (SVG inline en el HTML) */
.hero-skyline {
  position: absolute; left: 0; right: 0; bottom: -2px; z-index: 1;
  width: 100%; pointer-events: none;
}
.hero-skyline svg { width: 100%; height: auto; display: block; }

/* Caracteres españoles flotando */
.hero-flotantes { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.hero-flotantes span {
  position: absolute; font-family: var(--serif); font-weight: 700;
  color: rgba(195, 39, 46, 0.6);
  animation: flotar 12s ease-in-out infinite;
}
.hero-flotantes span:nth-child(1) { left: 7%;  top: 18%; font-size: 3.4rem; animation-delay: 0s; }
.hero-flotantes span:nth-child(2) { left: 16%; top: 58%; font-size: 2.2rem; animation-delay: -3s; color: rgba(46,94,140,.55); }
.hero-flotantes span:nth-child(3) { right: 9%; top: 22%; font-size: 3rem;   animation-delay: -6s; color: rgba(46,94,140,.55); }
.hero-flotantes span:nth-child(4) { right: 18%; top: 62%; font-size: 2.4rem; animation-delay: -9s; }
.hero-flotantes span:nth-child(5) { left: 42%; top: 10%; font-size: 2rem;   animation-delay: -5s; color: rgba(232,169,59,.8); }
.hero-flotantes span:nth-child(6) { right: 38%; top: 74%; font-size: 2.6rem; animation-delay: -7s; color: rgba(232,169,59,.8); }
@keyframes flotar {
  0%, 100% { transform: translateY(0) rotate(-4deg); }
  50% { transform: translateY(-26px) rotate(5deg); }
}

.hero-contenido { position: relative; z-index: 2; max-width: 860px; padding: 0 24px; }

/* Saludo giratorio: ¡Hola! → ¿Qué tal? → ¡Bienvenido!... */
.saludo {
  font-family: var(--serif); font-style: italic; font-weight: 700;
  font-size: clamp(3.2rem, 9vw, 6.5rem); line-height: 1.05;
  color: var(--carmin); height: 1.2em; position: relative; margin-bottom: 8px;
}
.saludo span {
  position: absolute; left: 0; right: 0; opacity: 0;
  animation: saludo-rotar 12s infinite;
}
.saludo span:nth-child(1) { animation-delay: 0s; }
.saludo span:nth-child(2) { animation-delay: 3s; color: var(--azulejo); }
.saludo span:nth-child(3) { animation-delay: 6s; color: var(--carmin-oscuro); }
.saludo span:nth-child(4) { animation-delay: 9s; color: #A25E1E; }
@keyframes saludo-rotar {
  0%   { opacity: 0; transform: translateY(28px) rotate(-2deg); }
  4%   { opacity: 1; transform: translateY(0) rotate(0); }
  22%  { opacity: 1; transform: translateY(0) rotate(0); }
  27%  { opacity: 0; transform: translateY(-24px) rotate(2deg); }
  100% { opacity: 0; }
}

.hero h1 {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(1.5rem, 3.2vw, 2.4rem); line-height: 1.25; letter-spacing: -0.01em;
}
.hero h1 em { font-style: italic; color: var(--carmin); }
.hero-sub { margin: 16px auto 0; font-size: 1.08rem; color: rgba(38,25,15,.75); max-width: 36em; }
.hero-botones { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

/* Indicador de scroll */
.hero-scroll {
  position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); z-index: 3;
  color: var(--blanco); font-family: var(--mono); font-size: .7rem; letter-spacing: .2em; text-transform: uppercase;
  display: flex; flex-direction: column; align-items: center; gap: 6px; text-decoration: none;
  animation: rebote 2.2s ease-in-out infinite;
}
@keyframes rebote { 0%,100% { transform: translate(-50%,0); } 50% { transform: translate(-50%,8px); } }

.boton {
  display: inline-block; text-decoration: none; font-weight: 600;
  padding: 14px 30px; border-radius: 999px; font-size: 1rem;
  transition: transform .15s, background .15s, box-shadow .15s;
}
.boton:hover { transform: translateY(-2px) scale(1.02); }
.boton-primario { background: var(--carmin); color: var(--blanco); box-shadow: 0 8px 24px rgba(142,27,33,.35); }
.boton-primario:hover { background: var(--carmin-oscuro); }
.boton-secundario { background: rgba(255,255,255,.85); color: var(--tinta); box-shadow: inset 0 0 0 2px var(--tinta); }

/* ============================================================
   TÍTULOS DE SECCIÓN
   ============================================================ */
.seccion-eyebrow {
  font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--carmin); margin-bottom: 10px;
}
.seccion-eyebrow::before { content: "´ "; font-family: var(--serif); font-weight: 900; }
.bloque h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(1.8rem, 3.4vw, 2.6rem); margin-bottom: 34px; }

/* ============================================================
   CARRUSEL DE CIUDADES — sellos postales con monumentos
   ============================================================ */
.ciudades { overflow: hidden; padding: 34px 0; position: relative; }
.ciudades-pista {
  display: flex; gap: 26px; width: max-content;
  animation: ciudades-desfile 45s linear infinite;
}
.ciudades:hover .ciudades-pista { animation-play-state: paused; }
@keyframes ciudades-desfile { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.sello {
  width: 168px; flex-shrink: 0;
  background: var(--blanco); border-radius: 10px;
  padding: 12px 12px 14px; text-align: center;
  box-shadow: 0 8px 20px rgba(38,25,15,.12);
  /* Borde dentado de sello postal */
  --dientes: radial-gradient(circle, transparent 4px, var(--blanco) 4.5px);
  position: relative;
  transition: transform .25s ease, box-shadow .25s;
  border: 2px solid var(--papel-sombra);
  outline: 3px dashed rgba(38,25,15,.12); outline-offset: -8px;
}
.sello:nth-child(odd) { transform: rotate(-2.5deg); }
.sello:nth-child(even) { transform: rotate(2deg); }
.sello:hover { transform: rotate(0) translateY(-10px) scale(1.07); box-shadow: 0 20px 40px rgba(38,25,15,.22); z-index: 3; }
.sello svg { width: 100%; height: 86px; display: block; margin-bottom: 8px; }
.sello .sello-ciudad {
  font-family: var(--mono); font-weight: 700; font-size: .78rem;
  letter-spacing: .14em; text-transform: uppercase; color: var(--tinta);
}
.sello .sello-lema { font-family: var(--serif); font-style: italic; font-size: .78rem; color: var(--tinta-suave); display: block; }

/* ============================================================
   BLOQUE NIVELES — escalera
   ============================================================ */
.bloque-niveles { background: var(--blanco); }
.escalera { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; align-items: end; }
.peldano {
  border-radius: 16px; padding: 18px 16px; color: var(--blanco);
  text-decoration: none; display: flex; flex-direction: column; justify-content: flex-end;
  transition: transform .25s cubic-bezier(.2,.7,.3,1.4), box-shadow .25s;
  position: relative; overflow: hidden;
}
.peldano::after { content: ""; position: absolute; inset: 0; background: linear-gradient(160deg, rgba(255,255,255,.22), transparent 45%); }
.peldano:hover { transform: translateY(-12px) rotate(-1.5deg) scale(1.03); box-shadow: 0 22px 38px rgba(38,25,15,.25); }
.peldano.a1 { background: var(--a1); min-height: 120px; }
.peldano.a2 { background: var(--a2); min-height: 148px; }
.peldano.b1 { background: var(--b1); min-height: 176px; }
.peldano.b2 { background: var(--b2); min-height: 204px; }
.peldano.c1 { background: var(--c1); min-height: 232px; }
.peldano.c2 { background: var(--c2); min-height: 260px; }
.peldano .nivel { font-family: var(--mono); font-weight: 700; font-size: 1.7rem; }
.peldano .frase { font-size: 0.82rem; opacity: 0.94; line-height: 1.35; }

/* ============================================================
   BLOQUE FORMATOS — azulejos
   ============================================================ */
.bloque-formatos {
  background:
    radial-gradient(circle at 12px 12px, rgba(46,94,140,.06) 3px, transparent 3px) 0 0 / 44px 44px,
    var(--papel);
}
.formatos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.formato {
  border-radius: var(--radio); overflow: hidden; text-decoration: none; color: var(--tinta);
  background: var(--blanco); box-shadow: 0 6px 20px rgba(38,25,15,.07);
  transition: transform .22s, box-shadow .22s;
  display: flex; flex-direction: column;
}
.formato:hover { transform: translateY(-7px) rotate(-.5deg); box-shadow: 0 22px 44px rgba(38,25,15,.15); }
/* Cabecera tipo azulejo de cada formato */
.formato-azulejo {
  height: 92px; display: grid; place-items: center; font-size: 2.4rem; color: var(--blanco);
  position: relative; overflow: hidden;
}
.formato-azulejo::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 10px 10px, rgba(255,255,255,.18) 3px, transparent 3px) 0 0 / 26px 26px;
}
.formato-azulejo span { transition: transform .3s ease; }
.formato:hover .formato-azulejo span { transform: scale(1.3) rotate(-8deg); }
.f-gramatica .formato-azulejo { background: var(--tipo-gramatica); }
.f-video .formato-azulejo { background: var(--tipo-video); }
.f-imagen .formato-azulejo { background: var(--tipo-imagen); }
.f-test .formato-azulejo { background: var(--tipo-test); }
.f-tips .formato-azulejo { background: var(--tipo-tips); }
.f-noticias .formato-azulejo { background: var(--tipo-noticias); }
.formato-cuerpo { padding: 20px 22px 22px; }
.formato h3 { font-family: var(--serif); font-size: 1.22rem; margin-bottom: 6px; }
.formato p { font-size: 0.92rem; color: var(--tinta-suave); }
.formato .cuenta { font-family: var(--mono); font-size: 0.72rem; color: var(--tinta-suave); display: block; margin-top: 12px; letter-spacing: .08em; text-transform: uppercase; }

/* ============================================================
   ETIQUETAS Y BADGES
   ============================================================ */
.etiqueta {
  display: inline-block; font-family: var(--mono); font-size: 0.68rem;
  letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700;
  color: var(--blanco); padding: 4px 11px; border-radius: 999px;
}
.etiqueta.t-gramatica { background: var(--tipo-gramatica); }
.etiqueta.t-video { background: var(--tipo-video); }
.etiqueta.t-imagen { background: var(--tipo-imagen); color: var(--tinta); }
.etiqueta.t-test { background: var(--tipo-test); }
.etiqueta.t-tips { background: var(--tipo-tips); }
.etiqueta.t-noticias { background: var(--tipo-noticias); }

.badge-nivel {
  display: inline-block; font-family: var(--mono); font-weight: 700;
  font-size: 0.72rem; padding: 3px 9px; border-radius: 6px; color: var(--blanco);
}
.badge-nivel.a1 { background: var(--a1); } .badge-nivel.a2 { background: var(--a2); }
.badge-nivel.b1 { background: var(--b1); } .badge-nivel.b2 { background: var(--b2); }
.badge-nivel.c1 { background: var(--c1); } .badge-nivel.c2 { background: var(--c2); }

/* ============================================================
   BLOQUE ÚLTIMOS MATERIALES — con imágenes
   ============================================================ */
.bloque-materiales { background: var(--blanco); }
.articulos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.tarjeta-articulo {
  background: var(--blanco); border-radius: var(--radio); overflow: hidden;
  text-decoration: none; color: var(--tinta); display: flex; flex-direction: column;
  box-shadow: 0 8px 24px rgba(38,25,15,.09);
  transition: transform .22s, box-shadow .22s;
}
.tarjeta-articulo:hover { transform: translateY(-8px); box-shadow: 0 24px 48px rgba(38,25,15,.16); }
.tarjeta-media { aspect-ratio: 16/10; overflow: hidden; position: relative; background: var(--papel-sombra); }
.tarjeta-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.tarjeta-articulo:hover .tarjeta-media img { transform: scale(1.08); }
.tarjeta-cuerpo { padding: 18px 22px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.tarjeta-meta { display: flex; gap: 8px; align-items: center; }
.tarjeta-articulo h3 { font-family: var(--serif); font-size: 1.16rem; line-height: 1.35; }
.tarjeta-pie { margin-top: auto; font-size: 0.82rem; color: var(--tinta-suave); }

/* ============================================================
   BLOQUE PILAR Y LOLA — polaroids sobre fondo oscuro
   ============================================================ */
.bloque-somos { background: linear-gradient(160deg, #2E2013, #26190F 70%); color: var(--papel); }
.somos { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.somos h2 { color: var(--papel); margin-bottom: 16px; }
.somos p { color: #D8CFC2; margin-bottom: 12px; }
.somos .firma { font-family: var(--serif); font-style: italic; color: var(--ocre); font-size: 1.2rem; }

.polaroids { position: relative; min-height: 380px; }
.polaroid {
  position: absolute; width: 62%; background: var(--blanco); padding: 12px 12px 44px;
  border-radius: 4px; box-shadow: 0 20px 44px rgba(0,0,0,.45);
  transition: transform .3s ease, z-index 0s;
}
.polaroid img { aspect-ratio: 1; object-fit: cover; width: 100%; }
.polaroid figcaption {
  position: absolute; bottom: 10px; left: 0; right: 0; text-align: center;
  font-family: var(--serif); font-style: italic; color: var(--tinta); font-size: .95rem;
}
/* Cinta adhesiva */
.polaroid::before {
  content: ""; position: absolute; top: -12px; left: 50%; transform: translateX(-50%) rotate(-3deg);
  width: 90px; height: 26px; background: rgba(232,169,59,.65); border-radius: 2px;
}
.polaroid:nth-child(1) { left: 0; top: 6%; transform: rotate(-6deg); z-index: 1; }
.polaroid:nth-child(2) { right: 0; top: 26%; transform: rotate(5deg); z-index: 2; }
.polaroid:hover { transform: rotate(0deg) scale(1.06); z-index: 5; }

/* ============================================================
   BLOQUE TILDE MADRID — billete/postal
   ============================================================ */
.bloque-tilde { background: var(--papel); }
.tilde-postal {
  background: linear-gradient(120deg, var(--carmin) 0%, var(--carmin-oscuro) 100%);
  color: var(--blanco); border-radius: 24px; padding: 56px 60px;
  position: relative; overflow: hidden;
  box-shadow: 0 30px 70px rgba(142,27,33,.35);
}
/* Borde perforado tipo sello postal */
.tilde-postal::after {
  content: ""; position: absolute; inset: 10px; border-radius: 16px;
  border: 2px dashed rgba(255,255,255,.35); pointer-events: none;
}
.tilde-postal::before {
  content: "´"; position: absolute; right: -20px; top: -130px;
  font-family: var(--serif); font-weight: 900; font-size: 24rem;
  color: rgba(255,255,255,.08); pointer-events: none;
}
.tilde-postal .seccion-eyebrow { color: var(--ocre); }
.tilde-postal h2 { color: var(--blanco); margin-bottom: 10px; }
.tilde-postal p { color: #F3D9D9; max-width: 44em; }
.tilde-cursos { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 30px; }
.tilde-cursos span {
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.32);
  padding: 7px 16px; border-radius: 999px; font-size: 0.86rem;
  transition: background .2s, transform .2s;
}
.tilde-cursos span:hover { background: rgba(255,255,255,.26); transform: translateY(-3px); }
.tilde-postal .boton-primario { background: var(--blanco); color: var(--carmin); box-shadow: none; }

/* ============================================================
   PIE
   ============================================================ */
.pie { background: #26190F; color: #D8CFC2; padding: 56px 0 28px; position: relative; overflow: hidden; }
.pie-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; position: relative; z-index: 1; }
.pie h4 { color: var(--papel); font-family: var(--mono); font-size: 0.78rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 12px; }
.pie a { color: #D8CFC2; text-decoration: none; display: block; padding: 3px 0; font-size: 0.92rem; transition: color .15s, padding-left .15s; }
.pie a:hover { color: var(--blanco); padding-left: 5px; }
.pie-sello { margin-top: 36px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); font-size: 0.82rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; position: relative; z-index: 1; }
.pie-sello strong { color: var(--ocre); }

/* ============================================================
   PLANTILLAS DE ARTÍCULO
   ============================================================ */
.articulo-cabecera { padding: 130px 0 28px; max-width: 800px; margin: 0 auto; position: relative; }
.articulo-cabecera .tarjeta-meta { margin-bottom: 16px; }
.articulo-cabecera h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(1.8rem, 3.5vw, 2.6rem); line-height: 1.18; }
.articulo-datos { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 18px; font-size: 0.88rem; color: var(--tinta-suave); }
.articulo-datos strong { color: var(--tinta); }

.articulo-cuerpo { max-width: 800px; margin: 0 auto; padding-bottom: 48px; }
.articulo-cuerpo p { margin-bottom: 18px; }
.articulo-cuerpo h2 { font-family: var(--serif); font-size: 1.5rem; margin: 32px 0 14px; }

.caja-instrucciones {
  background: var(--blanco); border-radius: var(--radio); padding: 24px 28px;
  border-left: 6px solid var(--tipo-test); margin: 24px 0;
  box-shadow: 0 6px 18px rgba(38,25,15,.06);
}
.caja-instrucciones h2 { margin-top: 0; font-size: 1.15rem; }
.caja-instrucciones ul { padding-left: 20px; }

.embed-form { background: var(--blanco); border-radius: var(--radio); overflow: hidden; box-shadow: 0 12px 34px rgba(38,25,15,.1); margin: 28px 0; }
.embed-form iframe { width: 100%; min-height: 720px; border: 0; display: block; }
.embed-form .embed-nota { padding: 12px 20px; font-size: 0.82rem; color: var(--tinta-suave); border-top: 1px solid var(--papel-sombra); background: var(--papel); }

.embed-video { aspect-ratio: 16/9; border-radius: var(--radio); overflow: hidden; box-shadow: 0 12px 34px rgba(38,25,15,.16); margin: 28px 0; background: var(--tinta); }
.embed-video iframe { width: 100%; height: 100%; border: 0; display: block; }

.puntos-clave { background: var(--blanco); border-radius: var(--radio); padding: 24px 28px; border-left: 6px solid var(--tipo-video); margin: 24px 0; box-shadow: 0 6px 18px rgba(38,25,15,.06); }
.puntos-clave h2 { margin-top: 0; font-size: 1.15rem; }
.puntos-clave li { margin-bottom: 8px; }

.relacionados { background: var(--papel-sombra); border-radius: var(--radio); padding: 28px; margin-top: 40px; }
.relacionados h2 { font-family: var(--serif); font-size: 1.3rem; margin-bottom: 16px; }
.relacionados ul { list-style: none; }
.relacionados li { padding: 8px 0; border-bottom: 1px dashed rgba(38,25,15,.15); }
.relacionados li:last-child { border-bottom: 0; }
.relacionados a { text-decoration: none; font-weight: 500; }
.relacionados a:hover { text-decoration: underline; }

.articulo-tilde {
  margin-top: 36px; text-align: center; padding: 32px;
  border: 2px dashed var(--carmin); border-radius: var(--radio);
  background: rgba(195,39,46,.03);
}
.articulo-tilde p { color: var(--tinta-suave); margin-bottom: 14px; }

/* Los formatos son 7 según el sitemap: en pantallas anchas, 4 + 3 */
@media (min-width: 901px) {
  .formatos { grid-template-columns: repeat(4, 1fr); }
}

/* ============================================================
   LANDINGS DE CATEGORÍA (una por apartado del sitemap)
   ============================================================ */
.landing-hero {
  padding: 130px 0 64px; color: var(--blanco); position: relative; overflow: hidden;
}
.landing-hero::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 12px 12px, rgba(255,255,255,.1) 3px, transparent 3px) 0 0 / 34px 34px;
  pointer-events: none;
}
.landing-hero .contenedor { position: relative; z-index: 1; }
.landing-hero .seccion-eyebrow { color: rgba(255,255,255,.85); }
.landing-hero h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(2rem, 4.2vw, 3.2rem); line-height: 1.12; max-width: 15em; }
.landing-hero .landing-sub { margin-top: 14px; max-width: 38em; color: rgba(255,255,255,.88); font-size: 1.08rem; }
.landing-hero .landing-icono {
  position: absolute; right: 4%; bottom: -30px; font-size: 11rem; opacity: .18;
  transform: rotate(-8deg); pointer-events: none; z-index: 0;
}
.lh-gramatica { background: linear-gradient(130deg, var(--tipo-gramatica), #8E1B21); }
.lh-video { background: linear-gradient(130deg, var(--tipo-video), #1D4166); }
.lh-imagen { background: linear-gradient(130deg, var(--tipo-imagen), #B87A14); }
.lh-test { background: linear-gradient(130deg, var(--tipo-test), #4A3D7E); }
.lh-tips { background: linear-gradient(130deg, var(--tipo-tips), #337158); }
.lh-actividades { background: linear-gradient(130deg, #6B5D4F, #4A3E32); }
.lh-noticias { background: linear-gradient(130deg, #6B5D4F, #4A3E32); }

/* Filtros por nivel */
.filtros { display: flex; gap: 10px; flex-wrap: wrap; margin: -26px 0 34px; position: relative; z-index: 2; }
.filtros a {
  background: var(--blanco); color: var(--tinta); text-decoration: none;
  font-family: var(--mono); font-weight: 700; font-size: .82rem;
  padding: 10px 18px; border-radius: 999px; box-shadow: 0 6px 16px rgba(38,25,15,.12);
  transition: transform .15s, background .15s, color .15s;
}
.filtros a:hover, .filtros a.activo { background: var(--tinta); color: var(--blanco); transform: translateY(-2px); }

.landing-lista { padding: 0 0 70px; }

/* Tarjeta sin foto: cabecera de color con inicial grande */
.tarjeta-inicial {
  aspect-ratio: 16/7; display: grid; place-items: center; color: var(--blanco);
  font-family: var(--serif); font-weight: 900; font-size: 3.4rem; font-style: italic;
  position: relative; overflow: hidden;
}
.tarjeta-inicial::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 10px 10px, rgba(255,255,255,.14) 3px, transparent 3px) 0 0 / 28px 28px;
}
.ti-gramatica { background: var(--tipo-gramatica); } .ti-video { background: var(--tipo-video); }
.ti-imagen { background: var(--tipo-imagen); } .ti-test { background: var(--tipo-test); }
.ti-tips { background: var(--tipo-tips); } .ti-actividades { background: #6B5D4F; }
.ti-noticias { background: #6B5D4F; }

/* ============================================================
   COMPONENTES ESPECÍFICOS POR APARTADO
   (cada uno mapea a un tipo de contenido del futuro dashboard)
   ============================================================ */

/* --- Tarjetas de nivel (Grammar y Tests: así se organiza la web real) --- */
.niveles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.nivel-card {
  border-radius: var(--radio); color: var(--blanco); padding: 26px;
  text-decoration: none; min-height: 180px;
  display: flex; flex-direction: column; justify-content: space-between;
  position: relative; overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.nivel-card::after {
  content: attr(data-nivel); position: absolute; right: -14px; bottom: -34px;
  font-family: var(--serif); font-weight: 900; font-size: 7.5rem;
  color: rgba(255,255,255,.13); pointer-events: none;
}
.nivel-card:hover { transform: translateY(-7px); box-shadow: 0 20px 40px rgba(38,25,15,.22); }
.nivel-card .nivel-letra { font-family: var(--mono); font-weight: 700; font-size: 2.4rem; line-height: 1; }
.nivel-card .nivel-desc { font-size: .95rem; opacity: .95; margin-top: 8px; max-width: 20em; }
.nivel-card .nivel-cuenta { font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; margin-top: 16px; opacity: .85; }
.nivel-card.a1 { background: var(--a1); } .nivel-card.a2 { background: var(--a2); }
.nivel-card.b1 { background: var(--b1); } .nivel-card.b2 { background: var(--b2); }
.nivel-card.c1 { background: var(--c1); } .nivel-card.c2 { background: var(--c2); }

/* --- Miniatura de vídeo con botón de play y duración --- */
.video-thumb { position: relative; }
.video-thumb::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: rgba(38,25,15,.18); transition: background .2s;
}
.video-thumb::after {
  content: "▶"; position: absolute; z-index: 2; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(251,245,233,.92); color: var(--carmin);
  display: grid; place-items: center; font-size: 1.2rem; padding-left: 4px;
  box-shadow: 0 8px 22px rgba(0,0,0,.3);
  transition: transform .2s, background .2s;
}
.tarjeta-articulo:hover .video-thumb::after { transform: translate(-50%, -50%) scale(1.15); background: var(--blanco); }
.tarjeta-articulo:hover .video-thumb::before { background: rgba(38,25,15,.05); }
.video-duracion {
  position: absolute; right: 10px; bottom: 10px; z-index: 2;
  background: rgba(38,25,15,.85); color: var(--blanco);
  font-family: var(--mono); font-size: .72rem; font-weight: 700;
  padding: 3px 8px; border-radius: 6px;
}

/* --- Meta con fecha y likes (los posts reales llevan contador) --- */
.meta-post { display: flex; gap: 14px; align-items: center; font-size: .8rem; color: var(--tinta-suave); font-family: var(--mono); }
.meta-post .likes::before { content: "♥ "; color: var(--carmin); }

/* --- Galería Picture learning: la foto es la protagonista --- */
.galeria { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.foto-card {
  background: var(--blanco); border-radius: var(--radio); overflow: hidden;
  text-decoration: none; color: var(--tinta);
  box-shadow: 0 8px 24px rgba(38,25,15,.09);
  transition: transform .22s, box-shadow .22s;
}
.foto-card:hover { transform: translateY(-6px); box-shadow: 0 22px 44px rgba(38,25,15,.16); }
.foto-card .foto-media { aspect-ratio: 16/10; overflow: hidden; }
.foto-card .foto-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.foto-card:hover .foto-media img { transform: scale(1.07); }
.foto-card .foto-cuerpo { padding: 20px 24px 22px; }
.foto-card h3 { font-family: var(--serif); font-size: 1.3rem; margin-bottom: 6px; }
.foto-card .foto-extracto { font-size: .95rem; color: var(--tinta-suave); }
.foto-card .meta-post { margin-top: 12px; }

/* --- Tips: notas adhesivas de la sala de profesores --- */
.notas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.nota {
  background: #FFF6D8; border-radius: 6px; padding: 26px 24px 22px;
  text-decoration: none; color: var(--tinta);
  box-shadow: 0 10px 24px rgba(38,25,15,.14);
  position: relative;
  transition: transform .22s, box-shadow .22s;
}
.nota::before {
  content: ""; position: absolute; top: -10px; left: 50%; transform: translateX(-50%) rotate(-2deg);
  width: 84px; height: 22px; background: rgba(195,39,46,.35); border-radius: 2px;
}
.nota:nth-child(3n+1) { transform: rotate(-1.6deg); background: #FFF6D8; }
.nota:nth-child(3n+2) { transform: rotate(1.2deg); background: #FDEFE0; }
.nota:nth-child(3n)   { transform: rotate(-0.8deg); background: #EFF5E3; }
.nota:hover { transform: rotate(0) translateY(-7px) scale(1.03); box-shadow: 0 22px 40px rgba(38,25,15,.2); z-index: 2; }
.nota .nota-pregunta { font-family: var(--serif); font-style: italic; font-size: 1.18rem; line-height: 1.35; display: block; margin-bottom: 10px; }
.nota .nota-extracto { font-size: .9rem; color: var(--tinta-suave); }
.nota .meta-post { margin-top: 14px; }

/* --- Useful links: tarjetas con logo --- */
.enlaces-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.enlace-card {
  background: var(--blanco); border-radius: var(--radio); padding: 34px 28px;
  text-decoration: none; color: var(--tinta); text-align: center;
  box-shadow: 0 8px 24px rgba(38,25,15,.09);
  transition: transform .22s, box-shadow .22s;
}
.enlace-card:hover { transform: translateY(-6px); box-shadow: 0 22px 44px rgba(38,25,15,.16); }
.enlace-logo {
  width: 92px; height: 92px; border-radius: 22px; margin: 0 auto 18px;
  display: grid; place-items: center; font-family: var(--serif); font-weight: 900;
  font-size: 2.2rem; color: var(--blanco);
}
.enlace-card h3 { font-family: var(--serif); font-size: 1.25rem; margin-bottom: 6px; }
.enlace-card p { font-size: .92rem; color: var(--tinta-suave); }

/* --- About: perfiles de Pilar y Lola --- */
.perfiles { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.perfil {
  background: var(--blanco); border-radius: var(--radio); overflow: hidden;
  box-shadow: 0 10px 28px rgba(38,25,15,.1); text-align: center; padding-bottom: 28px;
}
.perfil img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.perfil h3 { font-family: var(--serif); font-size: 1.4rem; margin: 20px 0 4px; }
.perfil .perfil-rol { font-family: var(--mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--carmin); }
.perfil p { padding: 14px 26px 0; font-size: .95rem; color: var(--tinta-suave); }

/* ============================================================
   PÁGINA DE DETALLE (blog post): índice + bloques + FAQ + autor
   ============================================================ */
.migas {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .06em;
  color: var(--tinta-suave); margin-bottom: 18px; text-transform: uppercase;
}
.migas a { color: var(--tinta-suave); text-decoration: none; }
.migas a:hover { color: var(--carmin); }
.migas span { color: var(--carmin); }

/* Layout dos columnas: índice pegajoso + contenido */
.articulo-layout {
  display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 48px;
  max-width: var(--ancho); margin: 0 auto; padding: 36px 24px 64px;
  align-items: start;
}
.indice {
  position: sticky; top: 130px;
  background: var(--blanco); border-radius: 16px; padding: 20px 22px;
  box-shadow: 0 8px 22px rgba(38,25,15,.08);
}
.indice h2 {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--carmin); margin-bottom: 12px;
}
.indice ol { list-style: none; counter-reset: indice; }
.indice li { counter-increment: indice; }
.indice a {
  display: flex; gap: 10px; align-items: baseline;
  text-decoration: none; color: var(--tinta); font-size: .9rem;
  padding: 7px 8px; border-radius: 8px; transition: background .15s, color .15s;
}
.indice a::before {
  content: counter(indice, decimal-leading-zero);
  font-family: var(--mono); font-size: .7rem; color: var(--tinta-suave);
}
.indice a:hover { background: var(--papel); color: var(--carmin); }
.indice .indice-tilde { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--papel-sombra); font-size: .82rem; color: var(--tinta-suave); }
.indice .indice-tilde a { color: var(--carmin); font-weight: 600; padding: 2px 0; display: inline; }
.indice .indice-tilde a::before { content: none; }

.detalle { min-width: 0; }
.detalle > section { scroll-margin-top: 140px; margin-bottom: 40px; }
.detalle h2 {
  font-family: var(--serif); font-size: 1.5rem; margin-bottom: 14px;
  display: flex; align-items: center; gap: 12px;
}
.detalle h2::before { content: "´"; color: var(--carmin); font-weight: 900; }
.detalle p { margin-bottom: 16px; }

/* Bloque de teoría con ejemplo destacado */
.bloque-teoria {
  background: var(--blanco); border-radius: var(--radio); padding: 26px 30px;
  box-shadow: 0 6px 18px rgba(38,25,15,.06);
}
.ejemplo {
  background: var(--papel); border-left: 5px solid var(--ocre);
  border-radius: 10px; padding: 14px 18px; margin: 14px 0;
  font-family: var(--serif); font-size: 1.05rem;
}
.ejemplo strong { color: var(--carmin); }
.ejemplo .traduccion { display: block; font-family: var(--sans); font-size: .84rem; color: var(--tinta-suave); font-style: normal; margin-top: 4px; }

/* Descarga de PDF (los ejercicios reales son PDFs) */
.descarga-pdf {
  display: flex; align-items: center; gap: 22px;
  background: var(--blanco); border: 2px dashed var(--carmin);
  border-radius: var(--radio); padding: 24px 28px;
}
.descarga-pdf .pdf-icono {
  width: 62px; height: 62px; border-radius: 14px; background: var(--carmin);
  color: var(--blanco); display: grid; place-items: center;
  font-family: var(--mono); font-weight: 700; font-size: .82rem; flex-shrink: 0;
}
.descarga-pdf h3 { font-family: var(--serif); font-size: 1.1rem; margin-bottom: 4px; }
.descarga-pdf p { font-size: .86rem; color: var(--tinta-suave); margin: 0; }
.descarga-pdf .boton { margin-left: auto; flex-shrink: 0; }

/* Vocabulario (picture learning real lleva definiciones) */
.vocabulario { background: var(--blanco); border-radius: var(--radio); padding: 26px 30px; box-shadow: 0 6px 18px rgba(38,25,15,.06); }
.vocabulario dt {
  font-family: var(--serif); font-weight: 700; font-size: 1.08rem; color: var(--carmin);
  margin-top: 14px;
}
.vocabulario dt:first-child { margin-top: 0; }
.vocabulario dd { color: var(--tinta-suave); font-size: .95rem; padding-left: 0; }

/* FAQ con acordeón */
.faq details {
  background: var(--blanco); border-radius: 14px; margin-bottom: 12px;
  box-shadow: 0 4px 14px rgba(38,25,15,.06); overflow: hidden;
}
.faq summary {
  cursor: pointer; list-style: none; padding: 18px 22px;
  font-family: var(--serif); font-size: 1.05rem; font-weight: 600;
  display: flex; justify-content: space-between; align-items: center; gap: 14px;
  transition: color .15s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; font-family: var(--mono); font-size: 1.3rem; color: var(--carmin);
  transition: transform .25s ease; flex-shrink: 0;
}
.faq details[open] summary { color: var(--carmin); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 22px 18px; color: var(--tinta-suave); margin: 0; }

/* Caja de autora */
.autor-box {
  display: flex; gap: 20px; align-items: center;
  background: var(--tinta); color: var(--papel);
  border-radius: var(--radio); padding: 24px 28px;
}
.autor-box img { width: 76px; height: 76px; border-radius: 50%; object-fit: cover; border: 3px solid var(--ocre); flex-shrink: 0; }
.autor-box h3 { font-family: var(--serif); font-size: 1.15rem; }
.autor-box .autor-rol { font-family: var(--mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ocre); display: block; margin: 2px 0 6px; }
.autor-box p { font-size: .88rem; color: #D8CFC2; margin: 0; }

/* Comentarios */
.comentarios .comentario {
  background: var(--blanco); border-radius: 14px; padding: 18px 22px; margin-bottom: 14px;
  box-shadow: 0 4px 14px rgba(38,25,15,.05);
}
.comentarios .comentario-meta { font-family: var(--mono); font-size: .74rem; color: var(--tinta-suave); margin-bottom: 6px; }
.comentarios .comentario-meta strong { color: var(--carmin); }
.form-comentario { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 20px; }
.form-comentario textarea { grid-column: 1 / -1; min-height: 110px; resize: vertical; }
.form-comentario input, .form-comentario textarea {
  font-family: var(--sans); font-size: .95rem; color: var(--tinta);
  background: var(--blanco); border: 1.5px solid var(--papel-sombra);
  border-radius: 12px; padding: 13px 16px; transition: border-color .15s;
}
.form-comentario input:focus, .form-comentario textarea:focus { outline: none; border-color: var(--carmin); }
.form-comentario .boton { grid-column: 1 / -1; justify-self: start; border: 0; cursor: pointer; }

/* ============================================================
   ACCESIBILIDAD Y RESPONSIVE
   ============================================================ */
:focus-visible { outline: 3px solid var(--azulejo); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  .reveal, .reveal-zoom { opacity: 1; transform: none; }
  html { scroll-behavior: auto; scroll-snap-type: none; }
}

@media (max-width: 900px) {
  html { scroll-snap-type: none; }
  .bloque { min-height: 0; padding: 64px 0; }
  .somos, .pie-grid, .galeria, .perfiles, .articulo-layout, .form-comentario { grid-template-columns: 1fr; }
  .indice { position: static; }
  .descarga-pdf { flex-direction: column; text-align: center; }
  .descarga-pdf .boton { margin-left: 0; }
  .formatos, .articulos, .niveles-grid, .notas, .enlaces-grid { grid-template-columns: 1fr 1fr; }
  .escalera { grid-template-columns: repeat(3, 1fr); }
  .peldano { min-height: 120px !important; }
  .polaroids { min-height: 320px; }
}

@media (max-width: 600px) {
  .formatos, .articulos, .escalera, .niveles-grid, .notas, .enlaces-grid { grid-template-columns: 1fr; }
  .escalera { align-items: stretch; }
  .cabecera-inner { flex-direction: column; align-items: flex-start; gap: 8px; padding: 10px 0; }
  .nav { font-size: 0.82rem; }
  .tilde-postal { padding: 34px 26px; }
  .polaroid { width: 74%; }
  .articulo-cabecera { padding-top: 150px; }
}