/* ============================================================
   Think Academy — Landing modernizada
   Base: landing oficial (paleta de marca) + mejoras Fade Impulsa
   Paleta oficial: azul #244ac9 · naranjo #fc9d47 · rojo #da372c · celeste #1bb9e3
   ============================================================ */
:root{
  --azul:#244ac9;
  --azul-claro:#c4dcff;
  --celeste:#1bb9e3;
  --rojo:#da372c;
  --naranjo:#fc9d47;
  --tinta:#10214f;
  --tinta-suave:#4a5878;
  --papel:#ffffff;
  --papel-2:#f2f6ff;
  --borde:#dbe5fb;
  --radio:22px;
  --sombra:0 18px 40px -22px rgba(16,33,79,.45);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--papel);color:var(--tinta);
  font-family:"Open Sans",system-ui,sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.fuente-display{font-family:"Poppins",system-ui,sans-serif;line-height:1.12;letter-spacing:-.02em;margin:0}
p{margin:0 0 1em}
a{color:inherit}
img{max-width:100%;display:block}
.env{width:min(1120px,92vw);margin-inline:auto}

/* ---------- Marcador naranjo (elemento distintivo de marca) ---------- */
.marca{position:relative;display:inline-block;padding:.04em .3em;color:var(--tinta);z-index:0}
.marca::before{content:"";position:absolute;inset:.14em -.05em .1em -.05em;background:var(--naranjo);border-radius:10px;transform:rotate(-1.2deg);z-index:-1}
.marca-celeste::before{background:var(--celeste)}
.marca-clara::before{background:var(--azul-claro)}

/* ---------- Navegación ---------- */
header.barra{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.93);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--borde);
  transition:box-shadow .25s ease, background .25s ease;
}
header.barra.sombra{box-shadow:0 10px 30px -18px rgba(16,33,79,.5)}
.barra .env{display:flex;align-items:center;gap:24px;padding:12px 0}
.barra img{height:44px;width:auto}
.menu{display:flex;gap:26px;margin-left:auto;font-size:15px;font-weight:600;font-family:"Poppins",sans-serif}
.menu a{text-decoration:none;color:var(--tinta-suave);transition:color .2s}
.menu a:hover{color:var(--azul)}
.menu-btn{display:none;margin-left:auto;background:none;border:0;cursor:pointer;padding:8px;color:var(--tinta)}
.menu-btn svg{display:block}

.boton{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:var(--rojo);color:#fff;text-decoration:none;
  font-family:"Poppins",sans-serif;font-weight:600;font-size:16px;
  padding:14px 26px;border-radius:999px;border:0;cursor:pointer;
  box-shadow:0 10px 24px -12px rgba(218,55,44,.9);
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.boton:hover{transform:translateY(-2px);background:#c22f25;box-shadow:0 16px 30px -14px rgba(218,55,44,.95)}
.boton-chico{padding:11px 20px;font-size:15px}
.boton-grande{padding:19px 40px;font-size:19px}
.boton-claro{background:#fff;color:var(--azul);box-shadow:0 12px 28px -16px rgba(0,0,0,.5)}
.boton-claro:hover{background:#f3f7ff}
.boton-wa{background:#25d366;box-shadow:0 10px 24px -12px rgba(37,211,102,.9)}
.boton-wa:hover{background:#1fb457;box-shadow:0 16px 30px -14px rgba(37,211,102,.95)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--celeste);outline-offset:3px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(178deg,var(--azul) 0%,#1c3aa6 100%);
  color:#fff;padding:74px 0 200px;text-align:center;
}
.hero::after{content:"";position:absolute;left:50%;bottom:-320px;transform:translateX(-50%);width:1500px;height:600px;border-radius:50%;background:rgba(255,255,255,.06)}
.hero .env{position:relative;z-index:2}
.antetitulo{
  display:inline-block;font-family:"Poppins",sans-serif;font-weight:600;
  font-size:clamp(15px,2vw,19px);letter-spacing:.1em;text-transform:uppercase;
  color:var(--tinta);background:var(--naranjo);padding:12px 28px;border-radius:999px;
  margin-bottom:30px;box-shadow:0 12px 26px -14px rgba(0,0,0,.6);
}
.hero h1{font-size:clamp(38px,6.6vw,74px);font-weight:700;color:#fff;max-width:17ch;margin:0 auto}
.sello{margin:26px 0 0}
.sello-caja{
  display:inline-block;background:var(--naranjo);color:var(--tinta);
  padding:16px 30px 14px;border-radius:16px;transform:rotate(-1.8deg);
  box-shadow:0 18px 34px -18px rgba(0,0,0,.55);
}
.sello-caja strong{display:block;font-family:"Poppins",sans-serif;font-weight:700;font-size:clamp(40px,7vw,80px);line-height:.95;letter-spacing:-.02em}
.sello-caja span{display:block;font-family:"Poppins",sans-serif;font-weight:600;font-size:clamp(12px,1.5vw,17px);letter-spacing:.2em;margin-top:8px}
.hero .bajada{max-width:56ch;margin:26px auto 0;font-size:clamp(17px,2vw,20px);color:rgba(255,255,255,.9)}

/* ---------- Video ---------- */
.zona-video{margin-top:-160px;position:relative;z-index:20}
.marco-video{
  width:min(880px,92vw);margin-inline:auto;aspect-ratio:16/9;border-radius:26px;overflow:hidden;
  background:#0d1b3f;box-shadow:0 34px 70px -34px rgba(16,33,79,.75);border:7px solid #fff;position:relative;
}
.marco-video iframe{width:100%;height:100%;display:block;object-fit:cover;background:#0d1b3f;border:0}
.mini-play{position:absolute;inset:0;width:100%;height:100%;padding:0;border:0;cursor:pointer;background:none;display:block;transition:opacity .3s ease}
.mini-play .poster-img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease,filter .3s ease}
.mini-play:hover .poster-img{filter:brightness(1.06)}
.mini-play .mini-halo{position:absolute;left:66%;top:71%;width:172px;height:172px;transform:translate(-50%,-50%);border-radius:50%;box-shadow:0 0 0 0 rgba(27,185,227,.55);animation:latido 2.4s infinite;pointer-events:none}
.mini-play.oculta{opacity:0;pointer-events:none}
@keyframes latido{0%{box-shadow:0 0 0 0 rgba(27,185,227,.5)}70%{box-shadow:0 0 0 24px rgba(27,185,227,0)}100%{box-shadow:0 0 0 0 rgba(27,185,227,0)}}
.bajo-video{text-align:center;padding:38px 0 8px}
.bajo-video p{font-family:"Poppins",sans-serif;font-weight:500;font-size:clamp(18px,2.4vw,23px);color:var(--tinta);max-width:26ch;margin:0 auto 22px}
.bajo-video .acciones{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- Reconocimiento / autoridad (MINEDUC + premios) ---------- */
.reconoce{padding:10px 0 64px}
.reconoce-caja{
  display:grid;grid-template-columns:auto 1px 1fr;align-items:center;gap:34px;
  background:var(--papel-2);border:1px solid var(--borde);border-radius:var(--radio);
  padding:26px 34px;box-shadow:var(--sombra);
}
.reconoce-caja .sep{width:1px;height:78px;background:var(--borde)}
.reconoce-logo{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}
.reconoce-logo img{height:64px;width:auto;border-radius:8px}
.reconoce-logo b{font-family:"Poppins",sans-serif;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--tinta-suave)}
.reconoce-texto h3{font-size:clamp(19px,2.4vw,24px);margin-bottom:6px}
.reconoce-texto p{font-size:15.5px;color:var(--tinta-suave);margin:0;max-width:60ch}
.premios{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.premio{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--borde);
  border-radius:999px;padding:7px 14px;font-family:"Poppins",sans-serif;font-weight:600;font-size:13px;color:var(--tinta)
}
.premio i{font-style:normal}

/* ---------- Datos duros ---------- */
.datos{padding:44px 0 76px}
.rejilla-datos{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.dato{background:var(--papel-2);border:1px solid var(--borde);border-radius:var(--radio);padding:26px 20px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center}
.dato .cifra{font-family:"Poppins",sans-serif;font-weight:700;font-size:clamp(28px,3.6vw,40px);color:var(--azul);display:block;line-height:1}
.dato .cifra.chico{font-size:clamp(20px,2.6vw,26px)}
.dato .dato-logo{height:58px;width:auto;border-radius:8px}
.dato span.etiqueta{display:block;margin-top:12px;font-size:14.5px;color:var(--tinta-suave);line-height:1.45}

/* ---------- Secciones ---------- */
section{padding:82px 0}
.seccion-clara{background:var(--papel-2)}
.titulo-seccion{font-size:clamp(28px,4vw,44px);font-weight:700;max-width:18ch;margin-bottom:16px}
.intro-seccion{color:var(--tinta-suave);max-width:58ch;font-size:18px}
.encabezado{margin-bottom:44px}
.centrado{text-align:center}
.centrado .titulo-seccion{margin-inline:auto}
.centrado .intro-seccion{margin-inline:auto}

/* ---------- Modalidades ---------- */
.rejilla-mod{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tarjeta{background:#fff;border:1px solid var(--borde);border-radius:var(--radio);padding:28px 24px;box-shadow:var(--sombra);transition:transform .2s ease, box-shadow .2s ease;display:flex;flex-direction:column}
.tarjeta:hover{transform:translateY(-6px);box-shadow:0 26px 50px -26px rgba(16,33,79,.55)}
.emblema{width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.tarjeta h3{font-size:20px;margin-bottom:10px}
.tarjeta p{font-size:15.5px;color:var(--tinta-suave);margin:0}
.tarjeta .nivel{margin-top:16px;font-family:"Poppins",sans-serif;font-weight:600;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--azul)}

/* ---------- Equipo ---------- */
.rejilla-equipo{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.persona{background:#fff;border:1px solid var(--borde);border-radius:var(--radio);overflow:hidden;display:grid;grid-template-columns:210px 1fr;box-shadow:var(--sombra)}
.foto{background:linear-gradient(180deg,#eef4ff,#dfeaff);min-height:280px}
.foto img{width:100%;height:100%;object-fit:cover;object-position:center 12%}
.persona .texto{padding:26px 24px}
.persona h3{font-size:22px}
.persona .cargo{font-family:"Poppins",sans-serif;font-weight:600;font-size:13.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--rojo);margin:8px 0 16px}
.persona blockquote{margin:0;font-size:16.5px;color:var(--tinta-suave);border-left:4px solid var(--naranjo);padding-left:16px}

/* ---------- Testimonios ---------- */
.rejilla-test{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.testimonio{background:#fff;border:1px solid var(--borde);border-radius:var(--radio);padding:26px 24px;display:flex;flex-direction:column;gap:16px}
.testimonio .comillas{font-family:"Poppins",sans-serif;font-weight:700;font-size:56px;color:var(--naranjo);line-height:.55;height:26px}
.testimonio p{font-size:16px;color:var(--tinta-suave);margin:0;flex:1}
.firma{padding-top:16px;border-top:1px solid var(--borde)}
.destacado-adulto .firma{border-top-color:rgba(255,255,255,.3)}
.firma strong{display:block;font-family:"Poppins",sans-serif;font-size:15.5px}
.firma span{display:block;font-size:13.5px;color:var(--tinta-suave)}
.destacado-adulto{grid-column:1/-1;background:var(--azul);color:#fff;border-color:var(--azul)}
.destacado-adulto p{color:rgba(255,255,255,.92);font-size:18px}
.destacado-adulto .comillas{color:var(--naranjo)}
.destacado-adulto .firma span{color:rgba(255,255,255,.75)}
.cta-instagram{margin-top:34px;border:1px solid var(--borde);border-radius:var(--radio);background:linear-gradient(120deg,#fff,#f7faff);padding:26px 30px;display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.cta-instagram>.ig-texto{flex:1;min-width:220px}
.cta-instagram h4{font-size:19px;margin-bottom:6px}
.cta-instagram p{color:var(--tinta-suave);font-size:15.5px;margin:0;max-width:46ch}
.ig-grad{background:linear-gradient(45deg,#f09433 0%,#e6683c 25%,#dc2743 50%,#cc2366 75%,#bc1888 100%)}
.ig-chip{width:58px;height:58px;border-radius:16px;display:grid;place-items:center;flex:none;box-shadow:0 12px 26px -12px rgba(204,35,102,.6)}
.ig-chip svg{width:32px;height:32px;color:#fff}
.cta-instagram .boton{color:#fff}
.cta-instagram .boton:hover{filter:brightness(1.06);transform:translateY(-2px)}
.ig-ico{width:20px;height:20px;vertical-align:-4px}
footer a .ig-ico{width:17px;height:17px;vertical-align:-3px;margin-right:5px}

/* ---------- Historia (foto real de fondo) ---------- */
.historia-fondo{position:relative;color:#fff;background-image:linear-gradient(180deg,rgba(16,33,79,.9),rgba(28,58,166,.82)),url("../img/historia.jpg");background-size:cover;background-position:center 30%}
.historia{max-width:740px;margin-inline:auto;position:relative;z-index:2}
.historia .titulo-seccion{margin-bottom:24px;color:#fff}
.historia-fondo p{color:rgba(255,255,255,.92)}

/* ---------- Preguntas ---------- */
.pregunta{background:#fff;border:1px solid var(--borde);border-radius:16px;margin-bottom:12px;overflow:hidden}
.pregunta summary{cursor:pointer;list-style:none;padding:20px 56px 20px 24px;font-family:"Poppins",sans-serif;font-weight:600;font-size:17px;position:relative}
.pregunta summary::-webkit-details-marker{display:none}
.pregunta summary::after{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);font-size:26px;color:var(--celeste);line-height:1;transition:transform .2s ease}
.pregunta[open] summary::after{content:"–"}
.pregunta .respuesta{padding:0 24px 22px;color:var(--tinta-suave);font-size:16px}

/* ---------- Cierre / Agenda ---------- */
.cierre{background:var(--azul);color:#fff;text-align:center}
.cierre .titulo-seccion{color:#fff;margin-inline:auto}
.cierre .intro-seccion{color:rgba(255,255,255,.88);margin-inline:auto}
.marco-agenda{margin-top:38px;background:#fff;border-radius:var(--radio);padding:14px;box-shadow:0 30px 60px -30px rgba(0,0,0,.5)}
.cal-wrap{position:relative;min-height:640px;border-radius:16px;overflow:hidden;background:#fff}
.cal-wrap iframe{width:100%;min-height:640px;border:0;display:block}
.cal-cargando{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--tinta-suave);font-size:15px;background:#fff}
.spin{width:44px;height:44px;border-radius:50%;border:4px solid var(--azul-claro);border-top-color:var(--azul);animation:girar .9s linear infinite}
@keyframes girar{to{transform:rotate(360deg)}}
.agenda-alt{margin-top:22px}
.agenda-alt span{display:block;color:rgba(255,255,255,.8);font-size:14.5px;margin-bottom:12px}

footer{background:var(--tinta);color:rgba(255,255,255,.75);padding:34px 0;font-size:14.5px}
footer .env{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{color:var(--azul-claro)}

/* ---------- WhatsApp flotante ---------- */
.wa-flota{position:fixed;right:20px;bottom:20px;z-index:80;width:60px;height:60px;border-radius:50%;background:#25d366;display:flex;align-items:center;justify-content:center;box-shadow:0 14px 30px -10px rgba(37,211,102,.7);transition:transform .2s ease}
.wa-flota:hover{transform:scale(1.07)}
.wa-flota svg{width:32px;height:32px}

/* ---------- Pulido: kickers con punto de color ---------- */
.kicker{display:inline-flex;align-items:center;gap:10px;font-family:"Poppins",sans-serif;font-weight:700;font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--tinta-suave);margin-bottom:14px}
.centrado .kicker{justify-content:center}
.kdot{width:9px;height:9px;border-radius:50%;background:var(--celeste);box-shadow:0 0 0 4px rgba(27,185,227,.18);animation:pulso 2.6s ease-in-out infinite}
.kdot.n{background:var(--naranjo);box-shadow:0 0 0 4px rgba(252,157,71,.22);animation-name:pulsoN}
.kdot.r{background:var(--rojo);box-shadow:0 0 0 4px rgba(218,55,44,.2);animation-name:pulsoR}
.kdot.a{background:var(--azul);box-shadow:0 0 0 4px rgba(36,74,201,.2);animation-name:pulsoA}
@keyframes pulso{0%,100%{box-shadow:0 0 0 4px rgba(27,185,227,.22)}50%{box-shadow:0 0 0 9px rgba(27,185,227,0)}}
@keyframes pulsoN{0%,100%{box-shadow:0 0 0 4px rgba(252,157,71,.28)}50%{box-shadow:0 0 0 9px rgba(252,157,71,0)}}
@keyframes pulsoR{0%,100%{box-shadow:0 0 0 4px rgba(218,55,44,.26)}50%{box-shadow:0 0 0 9px rgba(218,55,44,0)}}
@keyframes pulsoA{0%,100%{box-shadow:0 0 0 4px rgba(36,74,201,.26)}50%{box-shadow:0 0 0 9px rgba(36,74,201,0)}}

/* ---------- Pulido: orbes flotantes (estilo Humberto/Voces) ---------- */
.env{position:relative;z-index:1}
.seccion-clara,#equipo,.cierre,.datos{position:relative;overflow:hidden}
.deco{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.orbe{position:absolute;border-radius:50%;pointer-events:none;will-change:transform;opacity:.55}
.orbe.b1{width:220px;height:220px;background:radial-gradient(circle at 30% 30%,rgba(27,185,227,.5),rgba(27,185,227,0) 70%);top:-40px;left:-30px;animation:flotaXY 11s ease-in-out infinite}
.orbe.b2{width:300px;height:300px;background:radial-gradient(circle at 30% 30%,rgba(252,157,71,.42),rgba(252,157,71,0) 70%);bottom:-80px;right:-50px;animation:flotaXY 14s ease-in-out infinite reverse}
.orbe.b3{width:150px;height:150px;background:radial-gradient(circle at 30% 30%,rgba(36,74,201,.4),rgba(36,74,201,0) 70%);top:40%;right:12%;animation:flotaY 9s ease-in-out infinite}
.orbe.claro{background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.5),rgba(255,255,255,0) 70%)}
.hero .orbe{opacity:.35}
@keyframes flotaY{0%,100%{transform:translateY(0)}50%{transform:translateY(-24px)}}
@keyframes flotaXY{0%,100%{transform:translate(0,0)}50%{transform:translate(16px,-20px)}}

/* sello del hero: leve flotación */
.sello-caja{animation:flotaSello 5.5s ease-in-out infinite}
@keyframes flotaSello{0%,100%{transform:rotate(-1.8deg) translateY(0)}50%{transform:rotate(-1.8deg) translateY(-8px)}}

/* ---------- Animación de entrada ---------- */
.aparece{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.aparece.visible{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .rejilla-mod{grid-template-columns:1fr 1fr}
  .rejilla-equipo{grid-template-columns:1fr}
  .rejilla-test{grid-template-columns:1fr}
  .menu{position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--borde);padding:8px 0;display:none;box-shadow:0 20px 30px -20px rgba(16,33,79,.4)}
  .menu.abierto{display:flex}
  .menu a{padding:14px 24px}
  .menu-btn{display:block}
  .barra .boton{display:none}
  .reconoce-caja{grid-template-columns:1fr;gap:20px;text-align:center}
  .reconoce-caja .sep{display:none}
  .reconoce-texto p{margin-inline:auto}
  .premios{justify-content:center}
}
@media (max-width:640px){
  body{font-size:16px}
  .hero{padding:54px 0 170px}
  .zona-video{margin-top:-140px}
  .rejilla-datos{grid-template-columns:1fr 1fr}
  .rejilla-mod{grid-template-columns:1fr}
  .persona{grid-template-columns:1fr}
  .foto{min-height:300px}
  .foto img{object-position:center 8%}
  section{padding:60px 0}
  .barra .env{gap:12px}
  .barra img{height:36px}
  .cta-instagram{flex-direction:column;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  .aparece{opacity:1;transform:none;transition:none}
  .spin,.mini-halo,.orbe,.kdot,.sello-caja{animation:none!important}
  .sello-caja{transform:rotate(-1.8deg)}
  html{scroll-behavior:auto}
}