/* ══════════════════════════════════════════════════════════════════
   Academia 113 · hoja de estilos
   Idea: el cuaderno de cuadrícula. Blanco y negro, con la línea roja
   del margen, la corrección a mano y el fosforito como únicos acentos.
   ══════════════════════════════════════════════════════════════════ */

:root {
  --tinta: #0c0c0d;
  --tinta-2: #18181a;
  --papel: #fbfbf8;
  --blanco: #ffffff;
  --linea: #e6e5df;
  --linea-osc: #2b2b2e;
  --suave: #67665f;
  --suave-osc: #a3a29b;
  --rojo: #e0382b;
  --fosfo: #ffe74c;
  --cuadro: rgba(12, 12, 13, .055);

  --serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --sans: 'Inter Tight', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mano: 'Caveat', 'Segoe Print', cursive;

  --ancho: min(1200px, 100% - 32px);
  --r: 20px;
  --r-s: 12px;
  --sombra: 0 1px 2px rgba(0,0,0,.04), 0 12px 32px -12px rgba(0,0,0,.14);
  --curva: cubic-bezier(.2, .7, .2, 1);
  --cab: 68px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--cab) + 16px); }
body {
  margin: 0; background: var(--papel); color: var(--tinta);
  font: 400 16.5px/1.6 var(--sans); letter-spacing: -.005em;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4 { margin: 0; font-family: var(--serif); font-weight: 380; line-height: 1.04; letter-spacing: -.025em; font-variation-settings: 'opsz' 96, 'SOFT' 30; }
p { margin: 0; }
em { font-style: italic; }
::selection { background: var(--fosfo); color: var(--tinta); }
:focus-visible { outline: 2px solid var(--rojo); outline-offset: 3px; border-radius: 6px; }

.sr { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--tinta); color: #fff; padding: 10px 16px; border-radius: 99px; }
.sr:focus { left: 8px; }
.envoltura { width: var(--ancho); margin-inline: auto; }

/* ── Iconos ─────────────────────────────────────────────────────── */
.ico { width: 1.15em; height: 1.15em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.ico-wa { fill: currentColor; stroke: none; }

/* ── Textos comunes ─────────────────────────────────────────────── */
.etiqueta {
  display: inline-flex; align-items: center; gap: 10px;
  font: 500 12px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--suave);
}
.etiqueta::before { content: ''; width: 18px; height: 1.5px; background: var(--rojo); }
.oscuro .etiqueta { color: var(--suave-osc); }
.entrada { font-size: clamp(17px, 1.6vw, 19.5px); line-height: 1.55; color: var(--suave); max-width: 58ch; }
.oscuro .entrada { color: var(--suave-osc); }
.nota-mano { font: 500 clamp(22px, 2.4vw, 28px)/1.1 var(--mano); color: var(--rojo); letter-spacing: 0; }

/* Subrayado de fosforito que se pinta al entrar en pantalla */
.fosfo {
  background: linear-gradient(transparent 58%, var(--fosfo) 58%, var(--fosfo) 92%, transparent 92%) no-repeat 0 0 / 0% 100%;
  transition: background-size 1.1s var(--curva) .35s;
  padding-inline: .06em; margin-inline: -.06em;
}
.visto .fosfo, .fosfo.visto { background-size: 100% 100%; }

/* Trazo a mano (SVG) que se dibuja */
.trazo path { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 1.2s var(--curva) .5s; }
.visto .trazo path, .trazo.visto path { stroke-dashoffset: 0; }

/* ── Botones ────────────────────────────────────────────────────── */
.boton {
  --bg: var(--tinta); --fg: var(--blanco); --bg-h: var(--rojo); --fg-h: var(--blanco); --borde: var(--bg); --borde-h: var(--bg-h);
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 0 22px 0 24px; border-radius: 99px; border: 1.5px solid var(--borde);
  background: var(--bg); color: var(--fg); font-weight: 500; font-size: 15.5px; letter-spacing: -.01em; line-height: 1;
  cursor: pointer; overflow: hidden; isolation: isolate; white-space: nowrap; text-align: center;
  -webkit-tap-highlight-color: transparent; user-select: none;
  transition: transform .45s var(--curva), box-shadow .45s var(--curva), color .35s var(--curva), border-color .35s var(--curva);
}
.boton::after {
  content: ''; position: absolute; inset: -2px; z-index: -1; background: var(--bg-h);
  border-radius: inherit; transform: translateY(102%) scaleY(.6); transform-origin: bottom;
  transition: transform .5s var(--curva);
}
.boton .ico { width: 18px; height: 18px; transition: transform .45s var(--curva); }
.boton .ico-flecha { margin-right: -2px; }
.boton:focus-visible { outline: 2px solid var(--rojo); outline-offset: 3px; }
.boton:active { transform: scale(.97); transition-duration: .15s; }
@media (hover: hover) {
  .boton:hover { color: var(--fg-h); border-color: var(--borde-h); transform: translateY(-2px); box-shadow: 0 14px 28px -14px rgba(12,12,13,.45); }
  .boton:hover::after { transform: none; }
  .boton:hover .ico-flecha { transform: translateX(4px); }
  .boton:active { transform: scale(.97); }
}
.boton-linea { --bg: transparent; --fg: var(--tinta); --borde: rgba(12,12,13,.85); --bg-h: var(--tinta); --fg-h: var(--blanco); --borde-h: var(--tinta); }
.boton-claro { --bg: var(--blanco); --fg: var(--tinta); --borde: var(--blanco); --bg-h: var(--fosfo); --fg-h: var(--tinta); --borde-h: var(--fosfo); }
.boton-fantasma-claro { --bg: transparent; --fg: var(--blanco); --borde: rgba(255,255,255,.32); --bg-h: var(--blanco); --fg-h: var(--tinta); --borde-h: var(--blanco); }
.boton-grande { min-height: 58px; padding: 0 28px 0 30px; font-size: 16.5px; }
.boton .ico-wa { width: 19px; height: 19px; }

.enlace-flecha {
  display: inline-flex; align-items: center; gap: 8px; font-weight: 500;
  background: linear-gradient(currentColor, currentColor) no-repeat 0 100% / 100% 1px; padding-bottom: 3px;
  transition: background-size .45s var(--curva), gap .35s var(--curva);
}
@media (hover: hover) { .enlace-flecha:hover { gap: 12px; color: var(--rojo); } }
.enlace-flecha .ico { width: 17px; height: 17px; }

.boton-redondo {
  display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
  border: 1.5px solid var(--linea); background: var(--blanco); cursor: pointer;
  transition: border-color .3s, transform .3s var(--curva), background .3s;
}
.boton-redondo:hover { border-color: var(--tinta); transform: rotate(-6deg); }

/* ── Aviso superior ─────────────────────────────────────────────── */
.aviso-sup { background: var(--tinta); color: #d9d8d2; font-size: 13px; }
.aviso-sup .envoltura { display: flex; align-items: center; justify-content: center; gap: 12px; min-height: 36px; text-align: center; }
.aviso-sup b { color: #fff; font-weight: 500; }
.aviso-sup a { color: #fff; font-weight: 500; }
.aviso-sup a:hover { color: var(--fosfo); }
.punto { width: 4px; height: 4px; border-radius: 50%; background: var(--rojo); flex: none; }
.ocultar-movil { display: none; }

/* ── Cabecera ───────────────────────────────────────────────────── */
.cabecera {
  position: sticky; top: 0; z-index: 40;
  background: rgba(251, 251, 248, .97);
  border-bottom: 1px solid transparent; transition: border-color .3s, background .3s;
}
.cabecera.con-sombra { border-bottom-color: var(--linea); }
.cabecera .envoltura { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: var(--cab); }

.marca { display: inline-flex; align-items: center; gap: 11px; flex: none; }
.marca-sello {
  position: relative; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 11px;
  background: var(--tinta); color: #fff; font: 500 17px/1 var(--serif); letter-spacing: -.04em;
  transition: transform .5s var(--curva);
}
.marca-sello::after { content: ''; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 1.5px; background: var(--rojo); border-radius: 2px; }
.marca:hover .marca-sello { transform: rotate(-8deg); }
.marca-texto { display: grid; line-height: 1.05; }
.marca-texto b { font: 450 19px/1 var(--serif); letter-spacing: -.02em; }
.marca-texto small { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--suave); margin-top: 4px; }

.menu { display: none; }
.menu a { position: relative; padding: 8px 0; font-size: 14.5px; color: #3a3a37; transition: color .25s; }
.menu a::after { content: ''; position: absolute; left: 0; right: 0; bottom: 2px; height: 1.5px; background: var(--rojo); transform: scaleX(0); transform-origin: right; transition: transform .4s var(--curva); }
.menu a:hover, .menu a[aria-current] { color: var(--tinta); }
.menu a:hover::after, .menu a[aria-current]::after { transform: scaleX(1); transform-origin: left; }
.cab-acciones { display: flex; align-items: center; gap: 8px; }
.cab-acciones .boton { display: none; min-height: 44px; padding: 0 20px; font-size: 14.5px; }

/* Menú móvil a pantalla completa */
.menu-movil {
  position: fixed; inset: 0; z-index: 60; background: var(--papel);
  display: flex; flex-direction: column; padding: 14px 16px 28px;
  opacity: 0; visibility: hidden; transform: translateY(-12px);
  transition: opacity .35s var(--curva), transform .45s var(--curva), visibility 0s .45s;
  overflow-y: auto;
}
.menu-abierto .menu-movil { opacity: 1; visibility: visible; transform: none; transition: opacity .35s var(--curva), transform .45s var(--curva); }
.menu-abierto { overflow: hidden; }
.menu-movil .fila { display: flex; align-items: center; justify-content: space-between; height: 54px; }
.menu-movil nav { display: grid; margin: 22px 0 28px; border-top: 1px solid var(--linea); }
.menu-movil nav a {
  display: flex; align-items: baseline; gap: 14px; padding: 13px 2px; border-bottom: 1px solid var(--linea);
  font: 380 clamp(28px, 8vw, 36px)/1.1 var(--serif); letter-spacing: -.02em;
  opacity: 0; transform: translateY(10px); transition: opacity .4s var(--curva), transform .5s var(--curva), color .2s;
}
.menu-movil nav a small { font: 500 11px/1 var(--sans); letter-spacing: .1em; color: var(--suave); width: 22px; }
.menu-movil nav a[aria-current] { color: var(--rojo); }
.menu-abierto .menu-movil nav a { opacity: 1; transform: none; }
.menu-movil nav a:nth-child(2) { transition-delay: .03s; } .menu-movil nav a:nth-child(3) { transition-delay: .06s; }
.menu-movil nav a:nth-child(4) { transition-delay: .09s; } .menu-movil nav a:nth-child(5) { transition-delay: .12s; }
.menu-movil nav a:nth-child(6) { transition-delay: .15s; } .menu-movil nav a:nth-child(7) { transition-delay: .18s; }
.menu-movil nav a:nth-child(8) { transition-delay: .21s; }
.menu-movil .botones { display: grid; gap: 10px; margin-top: auto; }
.menu-movil .datos { margin-top: 18px; font-size: 14px; color: var(--suave); text-align: center; }

/* ── Secciones ──────────────────────────────────────────────────── */
.seccion { padding: clamp(72px, 10vw, 128px) 0; position: relative; }
.seccion-blanca { background: var(--blanco); border-block: 1px solid var(--linea); }
.oscuro { background: var(--tinta); color: #f2f1ec; }
.cabeza { display: grid; gap: 16px; margin-bottom: clamp(36px, 5vw, 60px); max-width: 760px; }
.cabeza h2 { font-size: clamp(36px, 5.6vw, 64px); }
.cabeza h2 em { color: var(--suave); }
.oscuro .cabeza h2 em { color: var(--suave-osc); }
.cabeza-fila { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: clamp(36px, 5vw, 60px); }
.cabeza-fila .cabeza { margin: 0; }

/* Cuadrícula de cuaderno */
.cuadricula {
  background-image:
    linear-gradient(var(--cuadro) 1px, transparent 1px),
    linear-gradient(90deg, var(--cuadro) 1px, transparent 1px);
  background-size: 28px 28px; background-position: -1px -1px;
}

/* ── Aparición al hacer scroll ──────────────────────────────────── */
.js .aparece { opacity: 0; transform: translateY(16px); transition: opacity .7s var(--curva), transform .8s var(--curva); }
.js .aparece.visto { opacity: 1; transform: none; }
.js .aparece[data-retraso="1"] { transition-delay: .08s; } .js .aparece[data-retraso="2"] { transition-delay: .16s; }
.js .aparece[data-retraso="3"] { transition-delay: .24s; } .js .aparece[data-retraso="4"] { transition-delay: .32s; }
.js .aparece[data-retraso="5"] { transition-delay: .40s; }

/* ══ PORTADA ═══════════════════════════════════════════════════════ */
.portada { position: relative; padding: clamp(36px, 6vw, 80px) 0 clamp(56px, 7vw, 96px); overflow: hidden; }
.portada::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background-image: linear-gradient(var(--cuadro) 1px, transparent 1px), linear-gradient(90deg, var(--cuadro) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 70% 30%, #000 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 70% at 70% 30%, #000 20%, transparent 75%);
}
.portada-grid { display: grid; gap: 48px; align-items: center; }
.portada-texto { display: grid; gap: 24px; justify-items: start; }
.sello-aniv {
  display: inline-flex; align-items: center; gap: 10px; padding: 6px 14px 6px 6px; border-radius: 99px;
  background: var(--blanco); border: 1px solid var(--linea); font-size: 13.5px; color: #3a3a37;
}
.sello-aniv b { display: grid; place-items: center; height: 26px; padding: 0 10px; border-radius: 99px; background: var(--tinta); color: #fff; font: 500 12.5px/1 var(--sans); letter-spacing: .02em; }
.portada h1 { font-size: clamp(48px, 12.4vw, 104px); line-height: .98; letter-spacing: -.035em; }
.portada h1 .num { position: relative; display: inline-block; font-style: normal; }
.portada h1 .num svg { position: absolute; left: -14%; top: -2%; width: 128%; height: 108%; max-width: none; overflow: visible; pointer-events: none; }
.portada h1 em { font-style: italic; font-weight: 330; }
.portada .entrada { max-width: 50ch; }
.portada .entrada b { color: var(--tinta); font-weight: 500; }
.portada-botones { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; width: 100%; }
.portada-botones .boton { flex: 1 1 210px; }
@media (min-width: 560px) { .portada-botones .boton { flex: 0 0 auto; } }
.portada-datos { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 14px; color: var(--suave); margin-top: 6px; }
.portada-datos span { display: inline-flex; align-items: center; gap: 7px; }
.portada-datos .ico { color: var(--tinta); }

/* La libreta animada */
.libreta-zona { position: relative; justify-self: center; width: min(100% - 12px, 470px); margin-bottom: 24px; }
.libreta {
  position: relative; aspect-ratio: 4 / 4.4; border-radius: 22px; background: var(--blanco);
  border: 1px solid var(--linea); box-shadow: 0 2px 4px rgba(0,0,0,.03), 0 40px 80px -40px rgba(0,0,0,.35);
  background-image: linear-gradient(var(--cuadro) 1px, transparent 1px), linear-gradient(90deg, var(--cuadro) 1px, transparent 1px);
  background-size: 24px 24px; background-position: -1px -1px; overflow: hidden;
  transform: rotate(1.6deg); transition: transform .8s var(--curva);
}
.libreta-zona:hover .libreta { transform: rotate(0deg); }
.libreta::before { content: ''; position: absolute; top: 0; bottom: 0; left: 15%; width: 1.5px; background: var(--rojo); opacity: .75; }
.libreta-anillas { position: absolute; left: 4.5%; top: 6%; bottom: 6%; display: flex; flex-direction: column; justify-content: space-between; }
.libreta-anillas i { width: 12px; height: 12px; border-radius: 50%; background: var(--papel); border: 1px solid var(--linea); box-shadow: inset 0 1px 2px rgba(0,0,0,.08); }
.libreta-cabeza { position: absolute; left: 20%; right: 7%; top: 6.5%; display: flex; justify-content: space-between; align-items: baseline; font: 500 11px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--suave); }
.libreta-cabeza span:last-child { font: 500 20px/1 var(--mano); letter-spacing: 0; text-transform: none; color: #8c8b84; }
.hoja { position: absolute; left: 20%; right: 7%; top: 18%; bottom: 8%; display: grid; align-content: start; gap: 10px; opacity: 0; transition: opacity .5s; }
.hoja.activa { opacity: 1; }
.hoja .tema { font: 500 12px/1.2 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--tinta); margin-bottom: 6px; }
.hoja .l { font: 500 clamp(25px, 6.4vw, 33px)/1.15 var(--mano); color: #1f2a44; white-space: nowrap; clip-path: inset(0 100% 0 0); }
.hoja .l.rojo { color: var(--rojo); }
.hoja .l.peq { font-size: clamp(19px, 4.6vw, 23px); color: #55607a; white-space: normal; line-height: 1.1; }
.hoja.activa .l { animation: escribir 1s steps(18, end) forwards; }
.hoja.activa .l:nth-child(3) { animation-delay: 1s; }
.hoja.activa .l:nth-child(4) { animation-delay: 2s; }
.hoja.activa .l:nth-child(5) { animation-delay: 3s; }
.hoja.activa .l:nth-child(6) { animation-delay: 3.8s; }
@keyframes escribir { to { clip-path: inset(0 0 0 0); } }
.hoja .marca-ok { position: absolute; right: 0; bottom: 10%; width: 30%; color: var(--rojo); overflow: visible; }
.hoja .marca-ok path { stroke-dasharray: 1; stroke-dashoffset: 1; }
.hoja.activa .marca-ok path { animation: trazar 1s var(--curva) forwards 4.3s; }
.hoja.activa .marca-ok path + path { animation-delay: 4.9s; }
@keyframes trazar { to { stroke-dashoffset: 0; } }
.libreta-pie { position: absolute; left: 20%; right: 7%; bottom: 4.5%; display: flex; gap: 6px; }
.libreta-pie i { height: 3px; flex: 1; border-radius: 3px; background: var(--linea); overflow: hidden; position: relative; }
.libreta-pie i::after { content: ''; position: absolute; inset: 0; background: var(--tinta); transform: scaleX(0); transform-origin: left; }
.libreta-pie i.activa::after { animation: progreso 6.5s linear forwards; }
.libreta-pie i.hecha::after { transform: scaleX(1); }
@keyframes progreso { to { transform: scaleX(1); } }

.posit {
  position: absolute; left: -5%; bottom: -10%; width: 38%; aspect-ratio: 1; padding: 14px 16px;
  background: var(--fosfo); border-radius: 4px 4px 18px 4px; transform: rotate(-6deg);
  box-shadow: 0 16px 30px -18px rgba(0,0,0,.45); display: grid; align-content: space-between;
}
.posit small { font: 500 10.5px/1.2 var(--sans); letter-spacing: .12em; text-transform: uppercase; }
.posit b { font: 400 clamp(36px, 9vw, 50px)/.9 var(--serif); letter-spacing: -.04em; }
.posit span { font: 500 clamp(16px, 4vw, 19px)/1 var(--mano); }
@keyframes flotar { 0%, 100% { transform: rotate(-6deg) translateY(0); } 50% { transform: rotate(-4.5deg) translateY(-6px); } }
.nota-flecha { position: absolute; right: -2%; top: -7%; display: flex; align-items: end; gap: 4px; transform: rotate(4deg); }
.nota-flecha svg { width: 46px; color: var(--rojo); transform: scaleX(-1) rotate(10deg); }

/* ── Cinta de asignaturas ───────────────────────────────────────── */
.cinta { border-block: 1px solid var(--linea); background: var(--blanco); overflow: hidden; padding: 18px 0; }
.cinta-pista { display: flex; width: max-content; animation: cinta 46s linear infinite; }
.cinta:hover .cinta-pista { animation-play-state: paused; }
.cinta-grupo { display: flex; align-items: center; gap: 28px; padding-right: 28px; }
.cinta-grupo span { font: 350 clamp(22px, 3vw, 30px)/1 var(--serif); letter-spacing: -.02em; white-space: nowrap; }
.cinta-grupo span:nth-child(4n+2) { font-style: italic; color: var(--suave); }
.cinta-grupo i { width: 7px; height: 7px; border-radius: 50%; background: var(--rojo); flex: none; }
@keyframes cinta { to { transform: translateX(-50%); } }

/* ── Cifras ─────────────────────────────────────────────────────── */
.cifras { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--linea); }
.cifra { padding: 28px 4px 26px; border-bottom: 1px solid var(--linea); display: grid; gap: 8px; }
.cifra:nth-child(odd) { border-right: 1px solid var(--linea); padding-right: 16px; }
.cifra:nth-child(even) { padding-left: 18px; }
.cifra b { font: 340 clamp(46px, 7vw, 76px)/.9 var(--serif); letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.cifra b sup { font-size: .38em; vertical-align: top; position: relative; top: .3em; margin-left: 2px; color: var(--rojo); }
.cifra span { font-size: 14.5px; color: var(--suave); line-height: 1.4; }

/* ── Niveles ────────────────────────────────────────────────────── */
.niveles { display: grid; gap: 14px; }
.nivel {
  position: relative; display: grid; gap: 14px; align-content: start; padding: 26px 24px 24px;
  background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--r);
  transition: transform .55s var(--curva), box-shadow .55s var(--curva), border-color .3s;
  overflow: hidden;
}
.nivel::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--rojo); transform: scaleY(0); transform-origin: bottom; transition: transform .5s var(--curva); }
.nivel::after { content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none; opacity: 0; transition: opacity .6s var(--curva);
  background-image: linear-gradient(var(--cuadro) 1px, transparent 1px), linear-gradient(90deg, var(--cuadro) 1px, transparent 1px); background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 70%); mask-image: linear-gradient(to bottom, #000, transparent 70%); }
.nivel > * { position: relative; z-index: 1; }
.nivel:hover::after { opacity: 1; }
.nivel:hover { transform: translateY(-6px); box-shadow: var(--sombra); border-color: #d6d5cf; }
.nivel:hover::before { transform: scaleY(1); }
.nivel-cab { display: flex; justify-content: space-between; align-items: start; }
.nivel-num { font: 500 12px/1 var(--sans); letter-spacing: .12em; color: var(--suave); }
.nivel-ico { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: var(--papel); border: 1px solid var(--linea); transition: background .4s, color .4s, transform .5s var(--curva); }
.nivel-ico .ico { width: 24px; height: 24px; }
.nivel:hover .nivel-ico { background: var(--tinta); color: #fff; transform: rotate(-8deg) scale(1.04); }
.nivel h3 { font-size: clamp(28px, 3vw, 34px); }
.nivel h3 small { display: block; font: 500 13px/1.3 var(--sans); letter-spacing: 0; color: var(--suave); margin-top: 8px; }
.nivel p { color: var(--suave); font-size: 15.5px; }
.nivel .enlace-flecha { margin-top: 6px; justify-self: start; font-size: 15px; }
.nivel .enlace-flecha::after { content: ''; position: absolute; inset: 0; }

/* ── Por qué (lista oscura) ─────────────────────────────────────── */
.razones { display: grid; border-top: 1px solid var(--linea-osc); counter-reset: r; }
.razon { display: grid; grid-template-columns: 44px 1fr; gap: 6px 14px; padding: 26px 0; border-bottom: 1px solid var(--linea-osc); position: relative; }
.razon::before { counter-increment: r; content: counter(r, decimal-leading-zero); font: 500 12px/2.2 var(--sans); letter-spacing: .1em; color: var(--suave-osc); }
.razon h3 { font-size: clamp(24px, 2.6vw, 30px); grid-column: 2; transition: color .3s; }
.razon p { grid-column: 2; color: var(--suave-osc); font-size: 15.5px; max-width: 46ch; }
.razon p a { color: #fff; border-bottom: 1px solid var(--rojo); }
.razon::after { content: ''; position: absolute; left: 0; bottom: -1px; height: 1px; width: 100%; background: var(--rojo); transform: scaleX(0); transform-origin: left; transition: transform .7s var(--curva); }
.razon:hover::after { transform: scaleX(1); }
.oscuro .nota-mano { color: var(--fosfo); }

/* ── Colegios ───────────────────────────────────────────────────── */
.colegios-grid { display: grid; gap: 36px; }
.colegios { display: flex; flex-wrap: wrap; gap: 10px; }
.colegios li {
  list-style: none; padding: 11px 18px; border-radius: 99px; border: 1px solid var(--linea); background: var(--blanco);
  font: 400 clamp(16px, 1.6vw, 18.5px)/1.2 var(--serif); letter-spacing: -.01em;
  transition: background .3s, color .3s, border-color .3s, transform .4s var(--curva);
}
.colegios li:hover { background: var(--tinta); color: #fff; border-color: var(--tinta); transform: translateY(-2px) rotate(-1deg); }
.colegios { margin: 0; padding: 0; }
.cita {
  position: relative; padding: 30px 26px 26px; border-radius: var(--r); background: var(--blanco); border: 1px solid var(--linea);
  display: grid; gap: 18px;
}
.cita blockquote { margin: 0; font: 360 clamp(23px, 3.2vw, 34px)/1.18 var(--serif); letter-spacing: -.02em; }
.cita blockquote::before { content: '“'; display: block; font: 400 72px/.6 var(--serif); color: var(--rojo); margin-bottom: 8px; }
.cita figcaption { font-size: 14px; color: var(--suave); }

/* ── Pasos ──────────────────────────────────────────────────────── */
.pasos { display: grid; gap: 0; counter-reset: p; position: relative; }
.paso { position: relative; display: grid; grid-template-columns: 56px 1fr; gap: 4px 18px; padding-bottom: 34px; }
.paso::before {
  counter-increment: p; content: counter(p); grid-row: span 2;
  width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center;
  border: 1.5px solid var(--tinta); background: var(--papel); font: 400 24px/1 var(--serif); position: relative; z-index: 1;
  transition: background .4s, color .4s;
}
.paso:hover::before { background: var(--tinta); color: #fff; }
.paso::after { content: ''; position: absolute; left: 27.5px; top: 56px; bottom: 0; width: 1px; background: repeating-linear-gradient(var(--suave) 0 4px, transparent 4px 9px); }
.paso:last-child::after { display: none; }
.paso:last-child { padding-bottom: 0; }
.paso h3 { font-size: clamp(24px, 2.4vw, 28px); padding-top: 12px; }
.paso p { color: var(--suave); font-size: 15.5px; }
.paso p a { color: var(--tinta); font-weight: 500; border-bottom: 1px solid var(--rojo); }

/* ── Datos prácticos ────────────────────────────────────────────── */
.practicos { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.practico:first-child, .practico:last-child { grid-column: 1 / -1; }
.practico { padding: 20px 18px; min-width: 0; border-radius: var(--r); background: var(--blanco); border: 1px solid var(--linea); display: grid; gap: 10px; align-content: start; transition: border-color .3s, transform .5s var(--curva); }
.practico:hover { border-color: var(--tinta); transform: translateY(-3px); }
.practico .ico { width: 26px; height: 26px; }
.practico small { font: 500 11.5px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--suave); margin-top: 8px; }
.practico b { font: 400 clamp(18px, 2vw, 21px)/1.25 var(--serif); letter-spacing: -.01em; }
.practico span { font-size: 14.5px; color: var(--suave); }
.practico a.enlace-flecha { font-size: 14.5px; justify-self: start; margin-top: 4px; }
.lineas { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2px; }
.lineas i { font-style: normal; display: inline-grid; place-items: center; min-width: 30px; height: 26px; padding: 0 8px; border-radius: 7px; font: 600 12.5px/1 var(--sans); background: var(--papel); border: 1px solid var(--linea); }
.lineas i.metro { background: #b15a1e; border-color: #b15a1e; color: #fff; }

/* ── Llamada final ──────────────────────────────────────────────── */
.llamada { position: relative; overflow: hidden; padding: clamp(80px, 11vw, 140px) 0 clamp(72px, 9vw, 112px); }
.llamada-fondo { display: none; }
.llamada .envoltura { display: grid; gap: 28px; justify-items: start; position: relative; z-index: 1; }
.llamada h2 { font-size: clamp(42px, 7.6vw, 92px); max-width: 14ch; }
.llamada h2 em { color: var(--suave-osc); }
.tel-grande { font: 340 clamp(40px, 8vw, 88px)/1 var(--serif); letter-spacing: -.03em; display: inline-flex; align-items: center; gap: .3em; transition: color .3s; font-variant-numeric: tabular-nums; }
.tel-grande:hover { color: var(--fosfo); }
.tel-grande .ico { width: .6em; height: .6em; stroke-width: 1.2; }
.llamada-fondo { opacity: .8; position: absolute; right: 4%; bottom: -4%; font: 300 clamp(200px, 40vw, 520px)/.8 var(--serif); letter-spacing: -.06em; color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.12); pointer-events: none; user-select: none; }
.llamada .botones { display: flex; flex-wrap: wrap; gap: 10px; }

/* ── Cabeza de página interior ──────────────────────────────────── */
.pagina-cabeza { position: relative; padding: clamp(44px, 7vw, 96px) 0 clamp(40px, 6vw, 72px); overflow: hidden; }
.pagina-cabeza::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background-image: linear-gradient(var(--cuadro) 1px, transparent 1px), linear-gradient(90deg, var(--cuadro) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 90%); mask-image: linear-gradient(to bottom, #000, transparent 90%);
}
.pagina-cabeza .envoltura { display: grid; gap: 20px; }
.pagina-cabeza h1 { font-size: clamp(46px, 8.4vw, 96px); letter-spacing: -.035em; max-width: 15ch; }
.pagina-cabeza h1 em { color: var(--suave); font-weight: 330; }
.miga { display: flex; gap: 10px; font-size: 13.5px; color: var(--suave); }
.miga a:hover { color: var(--tinta); }
.margen-rojo { position: absolute; top: 0; bottom: 0; left: max(8px, calc((100% - 1200px) / 2 - 28px)); width: 1.5px; background: var(--rojo); opacity: .5; }

/* ── Pestañas (Clases) ──────────────────────────────────────────── */
.pestanas-barra { position: sticky; top: var(--cab); z-index: 20; background: rgba(251,251,248,.97); border-bottom: 1px solid var(--linea); }
.pestanas { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; padding: 10px 0; scroll-snap-type: x proximity; }
.pestanas::-webkit-scrollbar { display: none; }
.pestanas button {
  flex: none; scroll-snap-align: start; padding: 10px 16px; border-radius: 99px; border: 1px solid transparent; background: none; cursor: pointer;
  font-size: 14.5px; color: var(--suave); transition: background .3s, color .3s, border-color .3s;
}
.pestanas button:hover { color: var(--tinta); border-color: var(--linea); }
.pestanas button[aria-selected="true"] { background: var(--tinta); color: #fff; }
.panel { padding: clamp(48px, 7vw, 88px) 0; }
.panel[hidden] { display: none; }
.panel.entra > .envoltura > * { animation: entrar .7s var(--curva) both; }
.panel.entra > .envoltura > *:nth-child(2) { animation-delay: .06s; }
.panel.entra > .envoltura > *:nth-child(3) { animation-delay: .12s; }
@keyframes entrar { from { opacity: 0; transform: translateY(14px); } }
.panel-grid { display: grid; gap: 36px; }
.panel-texto { display: grid; gap: 18px; align-content: start; }
.panel-texto h2 { font-size: clamp(38px, 5.4vw, 62px); }
.panel-texto h2 em { color: var(--suave); }
.panel-texto p { color: #3c3c38; max-width: 60ch; }
.ficha { background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--r); overflow: hidden; }
.ficha-fila { display: grid; grid-template-columns: 112px 1fr; gap: 14px; padding: 16px 22px; border-bottom: 1px solid var(--linea); font-size: 15px; }
.ficha-fila:last-child { border-bottom: 0; }
.ficha-fila dt { font: 500 11.5px/1.9 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--suave); }
.ficha-fila dd { margin: 0; }
.ficha-precio { background: var(--tinta); color: #fff; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; padding: 20px 22px; }
.ficha-precio div { display: grid; gap: 2px; }
.ficha-precio small { font: 500 11.5px/1.4 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--suave-osc); }
.ficha-precio b { font: 400 24px/1.1 var(--serif); }
.ficha-precio .boton { min-height: 44px; padding: 0 18px; font-size: 14.5px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0; list-style: none; }
.chips li { padding: 7px 14px; border-radius: 99px; background: var(--blanco); border: 1px solid var(--linea); font-size: 14.5px; }
.lista-check { display: grid; gap: 10px; padding: 0; margin: 0; list-style: none; }
.lista-check li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; color: #3c3c38; }
.lista-check li::before { content: ''; width: 18px; height: 18px; margin-top: 3px; border-radius: 50%; background: var(--tinta) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 11px no-repeat; }

/* ── Asignaturas ────────────────────────────────────────────────── */
.asignaturas { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--linea); border-left: 1px solid var(--linea); }
.asig { position: relative; padding: 22px 16px 20px; border-right: 1px solid var(--linea); border-bottom: 1px solid var(--linea); display: grid; gap: 10px; align-content: start; background: var(--blanco); transition: background .4s; overflow: hidden; }
.asig .simbolo { font: 400 34px/1 var(--serif); letter-spacing: -.03em; color: var(--tinta); height: 38px; transition: transform .5s var(--curva), color .3s; }
.asig:hover { background: var(--papel); }
.asig:hover .simbolo { transform: translateY(-3px) rotate(-6deg); color: var(--rojo); }
.asig h3 { font-size: clamp(19px, 2vw, 23px); line-height: 1.12; }
.asig small { font-size: 12.5px; color: var(--suave); line-height: 1.35; }

/* ── Orientador ─────────────────────────────────────────────────── */
.orientador { background: var(--blanco); border: 1px solid var(--linea); border-radius: 26px; padding: clamp(22px, 4vw, 44px); box-shadow: var(--sombra); }
.or-progreso { display: flex; gap: 6px; margin-bottom: 26px; }
.or-progreso i { flex: 1; height: 3px; border-radius: 3px; background: var(--linea); transition: background .5s; }
.or-progreso i.hecho { background: var(--tinta); }
.or-paso { display: grid; gap: 18px; }
.or-paso[hidden] { display: none; }
.or-paso.entra { animation: entrar .55s var(--curva) both; }
.or-paso h3 { font-size: clamp(26px, 3.4vw, 38px); }
.or-paso h3 small { display: block; font: 500 12px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--suave); margin-bottom: 12px; }
.or-opciones { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.or-opciones button {
  text-align: left; padding: 14px 16px; border-radius: 14px; border: 1.5px solid var(--linea); background: var(--papel); cursor: pointer;
  font-size: 15px; line-height: 1.3; transition: border-color .25s, background .25s, transform .35s var(--curva);
}
.or-opciones button:hover { border-color: var(--tinta); transform: translateY(-2px); }
.or-opciones button small { display: block; color: var(--suave); font-size: 12.5px; margin-top: 3px; }
.or-atras { justify-self: start; background: none; border: 0; padding: 4px 0; color: var(--suave); cursor: pointer; font-size: 14px; display: inline-flex; gap: 6px; align-items: center; }
.or-atras:hover { color: var(--tinta); }
.or-resultado { display: grid; gap: 18px; }
.or-resultado[hidden] { display: none; }
.or-resultado.entra { animation: entrar .6s var(--curva) both; }
.or-resumen { display: grid; gap: 0; border-radius: 16px; border: 1px solid var(--linea); overflow: hidden; }
.or-resumen div { display: grid; grid-template-columns: 104px 1fr; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--linea); font-size: 15px; }
.or-resumen div:last-child { border-bottom: 0; }
.or-resumen dt { font: 500 11px/1.9 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--suave); }
.or-resumen dd { margin: 0; }
.or-botones { display: flex; flex-wrap: wrap; gap: 10px; }

/* ── Método ─────────────────────────────────────────────────────── */
.comparativa { display: grid; gap: 14px; }
.comp { border-radius: var(--r); padding: 26px 24px; display: grid; gap: 18px; align-content: start; }
.comp-a { background: var(--blanco); border: 1px solid var(--linea); }
.comp-b { background: var(--tinta); color: #f2f1ec; }
.comp h3 { font-size: clamp(26px, 3vw, 34px); }
.comp small { font: 500 11.5px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--suave); }
.comp-b small { color: var(--suave-osc); }
.comp ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.comp li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; font-size: 15.5px; line-height: 1.45; }
.comp-a li { color: var(--suave); }
.comp-a li::before { content: '—'; color: #b4b3ac; }
.comp-b li::before { content: '✓'; color: var(--fosfo); font-weight: 600; }
.diagrama { width: 100%; height: auto; max-height: 230px; }
.diagrama .ruta { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 1.6s var(--curva); }
.visto .diagrama .ruta { stroke-dashoffset: 0; }
.visto .diagrama .ruta:nth-of-type(2) { transition-delay: .15s; } .visto .diagrama .ruta:nth-of-type(3) { transition-delay: .3s; }
.visto .diagrama .ruta:nth-of-type(4) { transition-delay: .45s; } .visto .diagrama .ruta:nth-of-type(5) { transition-delay: .6s; }

.pilares { display: grid; gap: 14px; counter-reset: pil; }
.pilar { position: relative; padding: 28px 24px 26px; background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--r); display: grid; gap: 12px; align-content: start; transition: transform .5s var(--curva), box-shadow .5s var(--curva); }
.pilar:hover { transform: translateY(-4px); box-shadow: var(--sombra); }
.pilar::before { counter-increment: pil; content: counter(pil, decimal-leading-zero); font: 300 64px/1 var(--serif); letter-spacing: -.04em; color: transparent; -webkit-text-stroke: 1px var(--tinta); }
.pilar h3 { font-size: clamp(24px, 2.6vw, 30px); }
.pilar p { color: var(--suave); font-size: 15.5px; }

/* ── Equipo ─────────────────────────────────────────────────────── */
.equipo { display: grid; gap: 14px; }
.persona { background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--r); overflow: hidden; display: grid; transition: transform .5s var(--curva), box-shadow .5s var(--curva); }
.persona:hover { transform: translateY(-4px); box-shadow: var(--sombra); }
.persona-foto {
  aspect-ratio: 16 / 10; display: grid; place-items: center; position: relative;
  background-color: var(--papel);
  background-image: linear-gradient(var(--cuadro) 1px, transparent 1px), linear-gradient(90deg, var(--cuadro) 1px, transparent 1px);
  background-size: 22px 22px; border-bottom: 1px solid var(--linea);
}
.persona-foto img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.persona-foto .inicial { width: 92px; height: 92px; border-radius: 50%; border: 1.5px dashed #bdbcb5; display: grid; place-items: center; font: 400 34px/1 var(--serif); color: #a3a29b; }
.persona-foto .pendiente { position: absolute; left: 14px; top: 14px; font: 500 18px/1 var(--mano); color: var(--rojo); transform: rotate(-3deg); }
.persona-cuerpo { padding: 22px 22px 24px; display: grid; gap: 10px; }
.persona-cuerpo small { font: 500 11.5px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--suave); }
.persona-cuerpo h3 { font-size: 26px; }
.persona-cuerpo p { color: var(--suave); font-size: 15px; }
.persona-cuerpo .chips li { font-size: 13px; padding: 5px 11px; background: var(--papel); }
.persona.destacada { grid-column: 1 / -1; }
.hueco { color: #a3a29b; font-style: italic; }

/* ── Historia (línea de tiempo) ─────────────────────────────────── */
.linea-tiempo { position: relative; display: grid; gap: 0; padding-left: 30px; }
.linea-tiempo::before { content: ''; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 1.5px; background: var(--linea); }
.linea-tiempo .progreso { position: absolute; left: 6px; top: 8px; width: 1.5px; height: 0; background: var(--rojo); transition: height .2s linear; }
.hito { position: relative; display: grid; gap: 10px; padding: 0 0 52px; }
.hito:last-child { padding-bottom: 0; }
.hito::before { content: ''; position: absolute; left: -30px; top: 14px; width: 13px; height: 13px; border-radius: 50%; background: var(--papel); border: 1.5px solid var(--tinta); transition: background .4s, border-color .4s, transform .4s var(--curva); }
.hito.visto::before { background: var(--rojo); border-color: var(--rojo); transform: scale(1.15); }
.hito-ano { font: 340 clamp(54px, 9vw, 104px)/.9 var(--serif); letter-spacing: -.04em; }
.hito-ano.texto { font-size: clamp(34px, 5vw, 54px); font-style: italic; color: var(--suave); }
.hito h2 { font-size: clamp(26px, 3vw, 34px); }
.hito p { color: var(--suave); max-width: 58ch; }

/* ── Preguntas ──────────────────────────────────────────────────── */
.faq-grid { display: grid; gap: 36px; }
.faq-indice { display: none; }
.faq-grupo { margin-bottom: 40px; }
.faq-grupo > h2 { font-size: clamp(26px, 3vw, 32px); margin-bottom: 10px; }
.faq { border-top: 1px solid var(--linea); }
.faq details { border-bottom: 1px solid var(--linea); }
.faq summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 20px 0; font: 400 clamp(19px, 2vw, 22px)/1.3 var(--serif); letter-spacing: -.01em; transition: color .25s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--rojo); }
.faq summary .mas { position: relative; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--linea); flex: none; transition: background .3s, transform .4s var(--curva), border-color .3s; }
.faq summary .mas::before, .faq summary .mas::after { content: ''; position: absolute; left: 50%; top: 50%; width: 11px; height: 1.5px; background: currentColor; transform: translate(-50%, -50%); transition: transform .4s var(--curva); }
.faq summary .mas::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq details[open] summary .mas { background: var(--tinta); color: #fff; border-color: var(--tinta); transform: rotate(180deg); }
.faq details[open] summary .mas::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq .resp { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .45s var(--curva); }
.faq details[open] .resp { grid-template-rows: 1fr; }
.faq .resp > div { overflow: hidden; }
.faq .resp p, .faq .resp ul { color: #45453f; padding-bottom: 14px; max-width: 66ch; margin: 0; }
.faq .resp ul { padding-left: 20px; }
.faq .resp a { border-bottom: 1px solid var(--rojo); font-weight: 500; }
.faq .resp > div > :last-child { padding-bottom: 22px; }

/* ── Contacto ───────────────────────────────────────────────────── */
.vias { display: grid; gap: 10px; }
.via {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px; padding: 20px 22px;
  background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--r);
  transition: border-color .3s, transform .5s var(--curva), background .3s, color .3s;
}
.via .ico { width: 26px; height: 26px; }
.via div { display: grid; gap: 2px; }
.via small { font: 500 11.5px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--suave); }
.via b { font: 400 22px/1.2 var(--serif); letter-spacing: -.01em; }
.via .ico-flecha { transition: transform .4s var(--curva); }
.via:hover { background: var(--tinta); color: #fff; border-color: var(--tinta); transform: translateY(-3px); }
.via:hover small { color: var(--suave-osc); }
.via:hover .ico-flecha { transform: translateX(4px) rotate(-45deg); }

.contacto-grid { display: grid; gap: 28px; }
.formulario { background: var(--blanco); border: 1px solid var(--linea); border-radius: 26px; padding: clamp(22px, 4vw, 40px); box-shadow: var(--sombra); }
.campos { display: grid; gap: 16px; }
.campo { display: grid; gap: 7px; min-width: 0; border: 0; padding: 0; margin: 0; }
.campo label, .campo legend { font-size: 14px; font-weight: 500; padding: 0; }
.campo label span, .campo legend span { color: var(--suave); font-weight: 400; }
.campo input, .campo select, .campo textarea {
  width: 100%; min-height: 50px; padding: 12px 15px; border-radius: 12px; border: 1.5px solid var(--linea); background: var(--papel);
  font-size: 16px; transition: border-color .25s, background .25s, box-shadow .25s; appearance: none; -webkit-appearance: none;
}
.campo select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230c0c0d' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; background-size: 16px; padding-right: 40px; }
.campo textarea { min-height: 110px; resize: vertical; }
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: none; border-color: var(--tinta); background: var(--blanco); box-shadow: 0 0 0 4px rgba(12,12,13,.06); }
.campo .aviso { display: none; font-size: 13px; color: var(--rojo); }
.campo.error input, .campo.error select { border-color: var(--rojo); }
.campo.error .aviso { display: block; }
.opciones { display: flex; flex-wrap: wrap; gap: 8px; }
.opciones label { position: relative; cursor: pointer; font-weight: 400; }
.opciones input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.opciones span { display: inline-flex; align-items: center; min-height: 42px; padding: 0 16px; border-radius: 99px; border: 1.5px solid var(--linea); background: var(--papel); font-size: 14.5px; transition: background .25s, color .25s, border-color .25s; }
.opciones input:checked + span { background: var(--tinta); color: #fff; border-color: var(--tinta); }
.opciones input:focus-visible + span { outline: 2px solid var(--rojo); outline-offset: 2px; }
.privacidad { display: grid; grid-template-columns: 22px 1fr; gap: 10px; font-size: 14px; color: var(--suave); align-items: start; cursor: pointer; }
.privacidad input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--tinta); }
.privacidad a { color: var(--tinta); border-bottom: 1px solid var(--rojo); }
.privacidad.error span { color: var(--rojo); }
.envio { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 18px; }
.envio small { color: var(--suave); font-size: 14px; }
.envio small a { color: var(--tinta); font-weight: 500; }
.formulario-ok { display: none; margin-top: 18px; padding: 16px 18px; border-radius: 14px; background: var(--papel); border: 1px solid var(--linea); font-size: 15px; }
.formulario.enviado .formulario-ok { display: block; animation: entrar .5s var(--curva); }

.horario { width: 100%; border-collapse: collapse; font-size: 15.5px; }
.horario td { padding: 14px 0; border-bottom: 1px solid var(--linea); }
.horario td:last-child { text-align: right; color: var(--suave); }
.horario tr.hoy td { font-weight: 600; }
.horario tr.hoy td:first-child span::after { content: 'hoy'; margin-left: 10px; padding: 3px 9px; border-radius: 99px; background: var(--fosfo); font: 600 11px/1 var(--sans); letter-spacing: .06em; text-transform: uppercase; vertical-align: 2px; }
.horario tr.hoy td:last-child { color: var(--tinta); }
.mapa { border-radius: var(--r); overflow: hidden; border: 1px solid var(--linea); background: var(--blanco); aspect-ratio: 4 / 3.2; filter: grayscale(1) contrast(1.05); transition: filter .6s; }
.mapa:hover { filter: none; }
.mapa iframe { width: 100%; height: 100%; border: 0; display: block; }

/* ── Blog ───────────────────────────────────────────────────────── */
.articulos { display: grid; gap: 14px; }
.articulo-tarjeta { position: relative; display: grid; gap: 14px; align-content: start; padding: 26px 24px; background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--r); transition: transform .5s var(--curva), box-shadow .5s var(--curva); }
.articulo-tarjeta:hover { transform: translateY(-5px); box-shadow: var(--sombra); }
.articulo-portada { aspect-ratio: 16 / 9; border-radius: 14px; background: var(--tinta); color: #fff; display: grid; place-items: center; overflow: hidden; position: relative; }
.articulo-portada.clara { background: var(--papel); color: var(--tinta); border: 1px solid var(--linea); background-image: linear-gradient(var(--cuadro) 1px, transparent 1px), linear-gradient(90deg, var(--cuadro) 1px, transparent 1px); background-size: 20px 20px; }
.articulo-portada.fosfo-bg { background: var(--fosfo); color: var(--tinta); }
.articulo-portada span { font: 300 clamp(54px, 10vw, 84px)/1 var(--serif); letter-spacing: -.04em; font-style: italic; transition: transform .7s var(--curva); }
.articulo-tarjeta:hover .articulo-portada span { transform: scale(1.06) rotate(-3deg); }
.articulo-tarjeta small { font: 500 11.5px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--suave); }
.articulo-tarjeta h2 { font-size: clamp(24px, 2.6vw, 29px); line-height: 1.1; }
.articulo-tarjeta p { color: var(--suave); font-size: 15px; }
.articulo-tarjeta a::after { content: ''; position: absolute; inset: 0; }

.articulo { max-width: 720px; margin-inline: auto; }
.articulo-cuerpo { font-size: 18px; line-height: 1.75; color: #2c2c29; }
.articulo-cuerpo > * + * { margin-top: 1.1em; }
.articulo-cuerpo h2 { font-size: clamp(28px, 3.4vw, 36px); margin-top: 1.8em; line-height: 1.1; color: var(--tinta); }
.articulo-cuerpo ul, .articulo-cuerpo ol { padding-left: 1.3em; }
.articulo-cuerpo li + li { margin-top: .45em; }
.articulo-cuerpo strong { font-weight: 600; color: var(--tinta); }
.articulo-cuerpo a { border-bottom: 1px solid var(--rojo); font-weight: 500; }
.articulo-cuerpo blockquote { margin: 1.6em 0; padding: 4px 0 4px 22px; border-left: 2px solid var(--rojo); font: 380 clamp(22px, 2.6vw, 27px)/1.3 var(--serif); color: var(--tinta); }
.articulo-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 14px; color: var(--suave); }
.caja-cta { margin-top: 48px; padding: 28px 26px; border-radius: var(--r); background: var(--tinta); color: #f2f1ec; display: grid; gap: 16px; justify-items: start; }
.caja-cta h2 { font-size: clamp(28px, 3.4vw, 36px); margin: 0 !important; color: #fff !important; }
.caja-cta p { color: var(--suave-osc); font-size: 16px; margin: 0 !important; }
.caja-cta .botones { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 !important; }

/* ── Legal ──────────────────────────────────────────────────────── */
.legal { max-width: 760px; }
.legal h2 { font-size: 28px; margin: 40px 0 12px; }
.legal p, .legal li { color: #3c3c38; }
.legal p + p { margin-top: 12px; }
.legal ul { padding-left: 20px; }
.legal .hueco { background: var(--fosfo); color: var(--tinta); font-style: normal; padding: 0 4px; border-radius: 3px; }

/* ── Pie ────────────────────────────────────────────────────────── */
.pie { background: var(--tinta); color: #d4d3cd; border-top: 1px solid var(--linea-osc); padding: clamp(56px, 7vw, 88px) 0 28px; position: relative; overflow: hidden; }
.pie .marca-sello { background: #fff; color: var(--tinta); }
.pie .marca-texto b { color: #fff; }
.pie .marca-texto small { color: var(--suave-osc); }
.pie-arriba { display: grid; gap: 36px; padding-bottom: 44px; border-bottom: 1px solid var(--linea-osc); }
.pie-lema { font: 340 clamp(28px, 3.6vw, 42px)/1.1 var(--serif); letter-spacing: -.02em; color: #fff; max-width: 18ch; }
.pie-lema em { color: var(--suave-osc); }
.pie-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 20px; }
.pie-col { display: grid; gap: 10px; align-content: start; font-size: 14.5px; }
.pie-col small { font: 500 11px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: #77766f; margin-bottom: 4px; }
.pie-col a { transition: color .25s; justify-self: start; }
.pie-col a:hover { color: #fff; }
.pie-col .fuerte { font: 400 22px/1.1 var(--serif); color: #fff; letter-spacing: -.01em; }
.pie-gigante { font: 300 clamp(150px, 34vw, 460px)/.74 var(--serif); letter-spacing: -.06em; color: transparent; -webkit-text-stroke: 1px #3a3a3e; margin: 36px 0 0; user-select: none; white-space: nowrap; transition: -webkit-text-stroke-color .6s; }
.pie-gigante:hover { -webkit-text-stroke-color: var(--rojo); }
.pie-base { padding-right: 76px; display: flex; flex-wrap: wrap; gap: 8px 20px; padding-top: 22px; font-size: 13px; color: #8a8982; border-top: 1px solid var(--linea-osc); margin-top: 24px; }
.pie-base a:hover { color: #fff; }
.pie-base span:first-child { margin-right: auto; }

/* ── WhatsApp flotante ──────────────────────────────────────────── */
.wa-flotante {
  border: 1px solid rgba(255,255,255,.14);
  position: fixed; right: 16px; bottom: 16px; z-index: 50; display: inline-flex; align-items: center; gap: 10px;
  padding: 7px; border-radius: 99px; background: var(--tinta); color: #fff;
  box-shadow: 0 14px 34px -12px rgba(0,0,0,.5); transform: translateY(0); transition: transform .5s var(--curva), padding .4s var(--curva), background .3s;
}
.wa-flotante .circulo { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; background: #25d366; position: relative; }

.wa-flotante .ico { width: 24px; height: 24px; color: #fff; }
.wa-flotante .texto { display: none; font-size: 14.5px; font-weight: 500; padding-right: 12px; }
.wa-flotante:hover { transform: translateY(-3px); }
@media (max-width: 719px) {
  .wa-flotante { padding: 0; background: none; border: 0; box-shadow: none; }
  .wa-flotante .circulo { width: 56px; height: 56px; box-shadow: 0 12px 28px -8px rgba(0,0,0,.45); }
  .wa-flotante .ico { width: 27px; height: 27px; }
}
@keyframes latido { 0% { transform: scale(1); opacity: .8; } 70%, 100% { transform: scale(1.55); opacity: 0; } }

/* ── 404 ────────────────────────────────────────────────────────── */
.error-404 { min-height: 60vh; display: grid; align-content: center; gap: 22px; justify-items: start; padding: 80px 0; }
.error-404 b { font: 300 clamp(120px, 26vw, 260px)/.8 var(--serif); letter-spacing: -.06em; }

/* ══ RESPONSIVE ═══════════════════════════════════════════════════ */
@media (min-width: 560px) {
  .or-opciones { grid-template-columns: repeat(3, 1fr); }
  .practicos, .equipo, .articulos { grid-template-columns: 1fr 1fr; }
  .wa-flotante { padding: 6px 6px 6px 6px; }
}
@media (min-width: 720px) {
  .ocultar-movil { display: inline; }
  .ocultar-movil.punto { display: block; }
  .niveles { grid-template-columns: 1fr 1fr; }
  .cifras { grid-template-columns: repeat(4, 1fr); }
  .cifra, .cifra:nth-child(odd), .cifra:nth-child(even) { border-right: 1px solid var(--linea); padding: 30px 22px 28px; }
  .cifra:first-child { padding-left: 0; }
  .cifra:last-child { border-right: 0; }
  .asignaturas { grid-template-columns: repeat(4, 1fr); }
  .asig { padding: 28px 22px 26px; }
  .razones { grid-template-columns: 1fr 1fr; column-gap: 48px; }
  .comparativa, .pilares { grid-template-columns: 1fr 1fr; }
  .vias { grid-template-columns: repeat(3, 1fr); }
  .via { grid-template-columns: 1fr auto; grid-template-rows: auto auto; padding: 24px; }
  .via > .ico:first-child { grid-column: 1 / -1; margin-bottom: 18px; }
  .pie-cols { grid-template-columns: repeat(4, 1fr); }
  .wa-flotante .texto { display: inline; }
  .pie-base { padding-right: 190px; }
  .wa-flotante { right: 24px; bottom: 24px; }
  .persona.destacada { grid-template-columns: 1fr 1.3fr; }
  .persona.destacada .persona-foto { aspect-ratio: auto; min-height: 340px; border-bottom: 0; border-right: 1px solid var(--linea); }
  .persona.destacada .persona-cuerpo { padding: 36px; align-content: center; }
  .persona.destacada h3 { font-size: 38px; }
}
@media (min-width: 980px) {
  :root { --cab: 76px; }
  .portada-grid { grid-template-columns: 1.15fr .85fr; gap: 56px; }
  .niveles { grid-template-columns: repeat(4, 1fr); }
  .nivel { min-height: 360px; }
  .nivel .enlace-flecha { margin-top: auto; }
  .colegios-grid { grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: start; }
  .pasos { grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .paso { grid-template-columns: 1fr; padding-bottom: 0; }
  .paso::before { grid-row: auto; margin-bottom: 14px; }
  .paso::after { left: 64px; right: -16px; top: 28px; bottom: auto; width: auto; height: 1px; background: repeating-linear-gradient(90deg, var(--suave) 0 4px, transparent 4px 9px); }
  .paso h3 { padding-top: 0; }
  .practicos { grid-template-columns: repeat(4, 1fr); }
  .practico:first-child, .practico:last-child { grid-column: auto; }
  .razones { grid-template-columns: repeat(3, 1fr); }
  .razon { grid-template-columns: 1fr; padding: 34px 0 36px; }
  .razon::before { grid-row: auto; margin-bottom: 14px; line-height: 1; }
  .razon h3, .razon p { grid-column: auto; }
  .panel-grid { grid-template-columns: 1.1fr .9fr; gap: 64px; }
  .contacto-grid { grid-template-columns: 1.25fr .75fr; gap: 48px; align-items: start; }
  .contacto-lado { position: sticky; top: calc(var(--cab) + 24px); display: grid; gap: 28px; }
  .campos { grid-template-columns: 1fr 1fr; gap: 18px; }
  .campo.ancho, .privacidad, .envio { grid-column: 1 / -1; }
  .faq-grid { grid-template-columns: 260px 1fr; gap: 64px; align-items: start; }
  .faq-indice { display: grid; gap: 4px; position: sticky; top: calc(var(--cab) + 32px); }
  .faq-indice a { padding: 8px 0; color: var(--suave); font-size: 15px; border-bottom: 1px solid var(--linea); transition: color .25s, padding .35s var(--curva); }
  .faq-indice a:hover { color: var(--tinta); padding-left: 6px; }
  .equipo { grid-template-columns: repeat(3, 1fr); }
  .articulos { grid-template-columns: repeat(3, 1fr); }
  .pie-arriba { grid-template-columns: 1fr 1.6fr; gap: 64px; }
  .comparativa { grid-template-columns: 1fr 1.15fr; align-items: stretch; }
  .linea-tiempo { padding-left: 0; grid-template-columns: 1fr; max-width: 980px; margin-inline: auto; }
  .linea-tiempo::before, .linea-tiempo .progreso { left: 50%; }
  .hito { width: 50%; padding: 0 56px 72px 0; text-align: right; justify-items: end; }
  .hito:nth-child(odd of .hito) { margin-left: 50%; padding: 0 0 72px 56px; text-align: left; justify-items: start; }
  .hito::before { left: auto; right: -7px; }
  .hito:nth-child(odd of .hito)::before { left: -6px; right: auto; }
  .hito p { max-width: 42ch; }
}
@media (min-width: 1140px) {
  .menu { display: flex; gap: 24px; }
  .boton-menu { display: none !important; }
  .cab-acciones .boton { display: inline-flex; }
  .cab-acciones .boton-redondo { display: none; }
}
@media (min-width: 1200px) {
  .cinta { padding: 22px 0; }
}

/* Acordeones suaves en navegadores que lo permiten */
@supports (interpolate-size: allow-keywords) {
  :root { interpolate-size: allow-keywords; }
  .faq details::details-content { height: 0; overflow: clip; transition: height .45s var(--curva), content-visibility .45s allow-discrete; }
  .faq details[open]::details-content { height: auto; }
}

/* ── Movimiento reducido ────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; transition-delay: 0s !important; scroll-behavior: auto !important; }
  .js .aparece { opacity: 1; transform: none; }
  .hoja .l { clip-path: none; }
  .hoja .marca-ok path, .trazo path, .diagrama .ruta { stroke-dashoffset: 0; }
  .cinta-pista { animation: none; flex-wrap: wrap; width: auto; }
}

/* ── Sello giratorio ────────────────────────────────────────────── */
.sello-giro { position: absolute; right: 16px; bottom: 44px; z-index: 2; width: 108px; aspect-ratio: 1; display: grid; place-items: center; }
.sello-giro > svg { position: absolute; inset: 0; width: 100%; height: 100%; animation: girar 22s linear infinite; }
.sello-giro text { fill: #f2f1ec; font: 600 12px var(--sans); letter-spacing: .1em; text-transform: uppercase; }
.sello-giro .centro { width: 44%; aspect-ratio: 1; border-radius: 50%; background: var(--fosfo); color: var(--tinta); display: grid; place-items: center; transition: transform .5s var(--curva), background .3s; }
.sello-giro .centro .ico { width: 42%; height: 42%; transform: rotate(-45deg); transition: transform .5s var(--curva); stroke-width: 2; }
.sello-giro:hover .centro { transform: scale(1.1); background: #fff; }
.sello-giro:hover .centro .ico { transform: rotate(0); }
.sello-giro:hover > svg { animation-duration: 8s; }
@keyframes girar { to { transform: rotate(360deg); } }
@media (min-width: 720px) {
  .sello-giro { width: 176px; right: 8%; top: 50%; bottom: auto; margin-top: -88px; }
}

/* ── Barra de lectura ───────────────────────────────────────────── */
.progreso-lectura { display: none; }
@supports (animation-timeline: scroll()) {
  .progreso-lectura { display: block; position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 70; background: var(--rojo); transform-origin: left; transform: scaleX(0); animation: leer linear both; animation-timeline: scroll(root); pointer-events: none; }
  @keyframes leer { to { transform: scaleX(1); } }
}

/* ── Manifiesto ─────────────────────────────────────────────────── */
.manifiesto .envoltura { display: grid; justify-items: center; text-align: center; gap: 28px; }
.manifiesto blockquote { margin: 0; max-width: 24ch; font: 340 clamp(30px, 5vw, 60px)/1.1 var(--serif); letter-spacing: -.025em; }
.manifiesto .etiqueta::after { content: ''; width: 18px; height: 1.5px; background: var(--rojo); }

/* En pantallas táctiles, sin estados hover pegados */
@media (hover: none) {
  .nivel:hover, .practico:hover, .persona:hover, .pilar:hover, .via:hover, .colegios li:hover { transform: none; box-shadow: none; }
  .via:hover { background: var(--blanco); color: inherit; border-color: var(--linea); }
  .via:hover small { color: var(--suave); }
  .nivel:hover .nivel-ico { background: var(--papel); color: inherit; transform: none; }
  .via:active, .nivel:active, .practico:active { transform: scale(.985); }
}
.persona-cta { grid-column: 1 / -1; }
@media (min-width: 720px) { .persona-cta .persona-cuerpo { grid-template-columns: 1fr auto; column-gap: 40px; align-items: center; padding: 36px 40px !important; } .persona-cta .persona-cuerpo > small, .persona-cta .persona-cuerpo > h3, .persona-cta .persona-cuerpo > p { grid-column: 1; } .persona-cta .persona-cuerpo > .boton { grid-column: 2; grid-row: 1 / span 3; margin: 0 !important; } }

/* ══ MÓVIL: versión limpia ══════════════════════════════════════ */
@media (max-width: 719px) {
  .aviso-sup { display: none; }
  .js .aparece { transition-delay: 0s !important; }
  .seccion { padding: 64px 0; }
  .cabeza { gap: 12px; margin-bottom: 28px; }
  .cabeza h2 { font-size: clamp(32px, 9vw, 40px); }
  .cabeza-fila { margin-bottom: 28px; gap: 14px; }
  .entrada { font-size: 16.5px; }

  .portada { padding: 24px 0 48px; }
  .portada-texto { gap: 18px; }
  .portada-datos { display: none; }
  .nota-flecha { display: none; }
  .libreta-zona { width: min(100% - 16px, 340px); }
  .libreta { transform: rotate(1deg); }
  .hoja { gap: 6px; }
  .posit { width: 36%; padding: 10px 12px; }

  .cinta { padding: 14px 0; }
  .cinta-pista { animation-duration: 36s; }

  .nivel { padding: 20px 18px; gap: 10px; }
  .nivel-ico { width: 44px; height: 44px; }
  .nivel h3 { font-size: 26px; }

  .razon { padding: 18px 0; grid-template-columns: 34px 1fr; }
  .razon h3 { font-size: 22px; }
  .razon p { font-size: 15px; }

  .manifiesto blockquote { font-size: 27px; }
  .paso { padding-bottom: 24px; }

  .llamada { padding: 64px 0 56px; }
  .llamada h2 { font-size: 38px; }
  .tel-grande { font-size: 36px; }
  .llamada .botones { width: 100%; }
  .llamada .botones .boton { flex: 1 1 100%; }
  .sello-giro { display: none; }

  .pagina-cabeza { padding: 28px 0 32px; }
  .pagina-cabeza .envoltura { gap: 14px; }
  .pagina-cabeza h1 { font-size: clamp(40px, 11vw, 48px); }
  .margen-rojo { display: none; }

  .panel { padding: 40px 0; }
  .panel-texto h2 { font-size: 32px; }
  .ficha-fila { grid-template-columns: 96px 1fr; padding: 14px 18px; }

  .pie { padding-top: 48px; }
  .pie-arriba { gap: 28px; padding-bottom: 28px; }
  .pie-lema { font-size: 26px; }
  .pie-col:last-child, .pie-gigante { display: none; }
  .pie-cols { grid-template-columns: 1fr 1fr; }
  .pie-base { margin-top: 0; }

  .hito { padding-bottom: 36px; }
  .hito-ano { font-size: 52px; }
  .faq summary { padding: 16px 0; font-size: 18px; }
}
@media (max-width: 979px) { .pestanas { -webkit-mask-image: linear-gradient(to right, #000 82%, transparent); mask-image: linear-gradient(to right, #000 82%, transparent); padding-right: 40px; } }
@media (max-width: 719px) { .portada h1 { font-size: clamp(54px, 16vw, 66px); line-height: .95; } }