/* ErasmusMates — blanco y azul.
   Hero: esfera ilustrada anclada al borde inferior, avión en órbita, título en el mismo arco.
   Resto: una columna central de 1080px, secciones alternas sobre blanco y azul muy claro. */

:root{
  --bg:        #FFFFFF;    /* fondo base */
  --bg-2:      #EEF4FB;    /* superficie alterna */
  --ink:       #16355F;    /* azul semioscuro: texto principal */
  --ink-soft:  #5A7291;    /* texto secundario */
  --brand:     #2C6BC0;    /* azul de marca: botones y acentos */
  --brand-deep:#1B4586;    /* azul profundo: titulares y datos */
  --ocean:     #3D91D4;
  --land:      #7AC24A;
  --line:      rgba(22,53,95,.14);
  --card:      #FFFFFF;
  --shadow:    0 18px 40px -28px rgba(22,53,95,.45);

  --display: "Bricolage Grotesque", "Trebuchet MS", system-ui, sans-serif;
  --body: "Instrument Sans", "Segoe UI", system-ui, -apple-system, sans-serif;

  --wrap: 1080px;
  --r: 18px;

  color-scheme: light;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font:400 clamp(15px,.55vw + 13.4px,17px)/1.65 var(--body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img,svg{ max-width:100%; }
h1,h2,h3{ font-family:var(--display); font-weight:700; line-height:1.06; text-wrap:balance; margin:0; letter-spacing:-.02em; }
p{ margin:0; }
a{ color:inherit; }

:focus-visible{ outline:2px solid var(--brand); outline-offset:3px; border-radius:6px; }

.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; border:0;
}
.skip{
  position:absolute; left:-9999px; top:0; z-index:99;
  background:var(--brand); color:#fff; padding:.7rem 1rem; border-radius:0 0 10px 0;
  font-weight:600; text-decoration:none;
}
.skip:focus{ left:0; }

/* ───────────────────────── nav ───────────────────────── */
.nav{
  position:sticky; top:env(safe-area-inset-top, 0px); z-index:20;
  display:flex; align-items:center; gap:clamp(12px,3vw,28px);
  max-width:var(--wrap); margin-inline:auto;
  padding:14px 20px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
}
.nav__brand{
  display:flex; align-items:center; gap:.6rem;
  font-family:var(--display); font-weight:700; font-size:1.06rem; letter-spacing:-.02em;
  text-decoration:none; margin-right:auto; color:var(--brand-deep);
}
.nav__mark{ color:var(--brand); display:grid; place-items:center; }
.nav__links{ display:flex; gap:clamp(14px,2.4vw,26px); font-size:.94rem; color:var(--ink-soft); }
.nav__links a{ text-decoration:none; }
.nav__links a:hover{ color:var(--brand-deep); }
@media (max-width:760px){ .nav__links{ display:none; } }

/* ───────────────────────── botones ───────────────────────── */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  background:var(--brand); color:#fff;
  font:600 1rem/1 var(--body);
  padding:.92rem 1.35rem; border:0; border-radius:12px;
  text-decoration:none; cursor:pointer; white-space:nowrap;
  transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease;
  box-shadow:0 10px 24px -14px rgba(44,107,192,.9);
}
.btn:hover{ transform:translateY(-1px); background:var(--brand-deep); box-shadow:0 16px 30px -16px rgba(27,69,134,.95); }
.btn:active{ transform:translateY(0); }
.btn--sm{ padding:.62rem 1rem; font-size:.92rem; }
.btn--ghost{
  background:#fff; color:var(--brand-deep);
  border:1px solid rgba(44,107,192,.35); box-shadow:none;
}
.btn--ghost:hover{ background:var(--bg-2); color:var(--brand-deep); box-shadow:none; }

.cta-row{ display:flex; flex-wrap:wrap; gap:.7rem; justify-content:center; }

/* ───────────────────────── hero ───────────────────────── */
.hero{ position:relative; padding:clamp(8px,2vw,24px) 20px 0; }

.hero__stage{
  position:relative;
  max-width:var(--wrap); margin-inline:auto;
  display:flex; flex-direction:column; align-items:center;
  gap:clamp(4px,1.5vw,18px);
  overflow:hidden;            /* corta la esfera por abajo */
  isolation:isolate;
}

.globe{
  order:2; z-index:0;
  width:min(100%, 690px); height:auto;
  margin-bottom:clamp(-26px,-3vw,-10px);
}

/* la esfera entra desde abajo, con un rebote corto */
.globe__body{
  transform:translateY(190px) scale(.9);
  transform-origin:450px 600px;
  opacity:0;
  animation:pop 1.15s cubic-bezier(.16,1.02,.3,1.02) .1s forwards;
}
@keyframes pop{
  0%{ transform:translateY(190px) scale(.9); opacity:0; }
  60%{ opacity:1; }
  72%{ transform:translateY(-14px) scale(1.012); }
  100%{ transform:translateY(0) scale(1); opacity:1; }
}
.globe__ocean{ filter:drop-shadow(0 26px 40px rgba(22,53,95,.22)); }
.globe__edge{ fill:none; stroke:rgba(22,53,95,.16); stroke-width:1.5; }
.land{ fill:var(--land); opacity:0; animation:fade .8s ease .5s forwards; }
.globe__shade{                       /* volumen: sombra suave abajo a la derecha */
  fill:none; stroke:rgba(15,45,85,.16); stroke-width:64; opacity:.55;
  transform:translate(26px 30px);
}
@keyframes fade{ to{ opacity:1; } }

.city circle{ fill:#fff; stroke:var(--brand-deep); stroke-width:3.5; }
.city text{
  font:600 19px/1 var(--body); fill:var(--brand-deep);
  text-anchor:middle; letter-spacing:.01em;
  paint-order:stroke; stroke:#fff; stroke-width:5px;
}
.city{ opacity:0; transform:scale(.4); transform-box:fill-box; transform-origin:center;
  animation:cityPop .5s cubic-bezier(.2,1.3,.4,1) var(--d) forwards; }
@keyframes cityPop{ to{ opacity:1; transform:scale(1); } }

/* órbita y avión */
.trail{ stroke:var(--brand-deep); stroke-width:1.6; stroke-linecap:round; opacity:.3; }
.plane{ opacity:0; }
.plane.is-flying{ opacity:1; }
.plane.is-parked{ animation:bob 4.5s ease-in-out infinite; }
@keyframes bob{ 50%{ translate:0 -7px; } }
.plane__art{ transform:scale(1.25); filter:drop-shadow(0 8px 14px rgba(22,53,95,.26)); }
.plane__body{ fill:#fff; stroke:var(--brand-deep); stroke-width:2.4; stroke-linejoin:round; }
.plane__wing{ fill:#D7E6F7; stroke:var(--brand-deep); stroke-width:2.4; stroke-linejoin:round; }
.plane__wing-far{ fill:#F1F6FC; stroke:var(--brand-deep); stroke-width:2; stroke-linejoin:round; }
.plane__fin{ fill:#fff; stroke:var(--brand-deep); stroke-width:2.4; stroke-linejoin:round; }
.plane__stab{ fill:#D7E6F7; stroke:var(--brand-deep); stroke-width:2.2; stroke-linejoin:round; }
.plane__windows circle{ fill:var(--ocean); }
.plane__cockpit{ fill:var(--ocean); }

.wordmark{
  font-family:var(--display); font-weight:800;
  font-size:104px; letter-spacing:-.025em;
  fill:url(#titleInk);
  opacity:0; animation:word 1s cubic-bezier(.2,.9,.25,1) 1.35s forwards;
}
@keyframes word{ from{ opacity:0; translate:0 26px; } to{ opacity:1; translate:0 0; } }
@media (max-width:760px){ .wordmark{ font-size:88px; } }

/* el texto abre la página; la escena del globo entra por debajo */
.hero__copy{
  order:1; position:relative; z-index:2;
  width:min(640px,100%); text-align:center;
  padding-block:clamp(14px,3.5vh,34px) 0;
  display:flex; flex-direction:column; align-items:center; gap:.95rem;
  opacity:0; animation:rise .9s cubic-bezier(.2,.9,.25,1) 1.7s forwards;
}
@keyframes rise{ from{ opacity:0; translate:0 22px; } to{ opacity:1; translate:0 0; } }

.hero__eyebrow{
  font-size:.8rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--brand); font-weight:600;
}
.hero__title{ font-size:clamp(1.75rem,3.8vw,2.55rem); color:var(--brand-deep); }
.hero__lede{ color:var(--ink-soft); max-width:52ch; }
.hero__note{ font-size:.85rem; color:var(--ink-soft); }

/* en pantallas estrechas la esfera se ensancha para que el arco siga legible */
@media (max-width:820px){
  .globe{ width:min(132%, 620px); margin-bottom:clamp(-30px,-5vw,-14px); }
  .hero__title{ font-size:clamp(1.9rem,6.2vw,2.4rem); }
}

/* cinta de datos */
.ticker{
  display:flex; flex-wrap:wrap; justify-content:center; gap:.5rem 1.6rem;
  max-width:var(--wrap); margin:clamp(20px,3vw,34px) auto 0; padding:0 0 clamp(28px,5vw,56px);
  list-style:none; font-size:.86rem; color:var(--ink-soft);
  border-bottom:1px solid var(--line);
  font-variant-numeric:tabular-nums;
  opacity:0; animation:rise .8s ease 2s forwards;
}
.ticker b{ color:var(--brand-deep); font-weight:600; }
.ticker__src{ color:#93A4BD; }

/* ───────────────────────── secciones ───────────────────────── */
.section{
  max-width:var(--wrap); margin-inline:auto;
  padding-block:clamp(56px,8vw,104px); padding-inline:20px;
}
.section--alt{
  max-width:none; background:var(--bg-2);
  border-block:1px solid var(--line);
}
.section--alt > *{ max-width:var(--wrap); margin-inline:auto; }

.section__head{ max-width:620px; display:flex; flex-direction:column; gap:.8rem; margin-bottom:clamp(30px,4vw,48px); }
.eyebrow{ font-size:.78rem; letter-spacing:.14em; text-transform:uppercase; color:var(--brand); font-weight:600; }
h2{ font-size:clamp(1.65rem,3.4vw,2.4rem); color:var(--brand-deep); }
.section__lede{ color:var(--ink-soft); }

/* tarjetas */
.cards{ display:grid; gap:20px; grid-template-columns:repeat(auto-fit,minmax(290px,1fr)); }
.card{
  display:flex; flex-direction:column; gap:.7rem; min-width:0;
  background:var(--card); border:1px solid var(--line); border-radius:var(--r);
  padding:22px; box-shadow:var(--shadow);
}
.card h3{ font-size:1.2rem; color:var(--brand-deep); }
.card p{ color:var(--ink-soft); font-size:.95rem; }
.card__art{
  border-radius:12px; background:var(--bg-2);
  border:1px solid var(--line); padding:14px; margin-bottom:.4rem;
  min-height:184px;
}

/* mock: chat */
.chat{ display:flex; flex-direction:column; gap:.45rem; font-size:.84rem; }
.card .chat__head{ display:flex; align-items:center; gap:.45rem; color:var(--ink-soft); font-size:.76rem; margin-bottom:.2rem; }
.dot{ width:7px; height:7px; border-radius:50%; background:#2FA36B; box-shadow:0 0 0 3px rgba(47,163,107,.16); }
.card .bubble{
  background:#fff; border:1px solid var(--line); border-radius:12px 12px 12px 4px;
  padding:.5rem .7rem; max-width:88%; color:var(--ink);
}
.card .bubble--me{ background:var(--brand); border-color:var(--brand); color:#fff; border-radius:12px 12px 4px 12px; align-self:flex-end; }

/* mock: votación */
.vote{ display:flex; flex-direction:column; gap:.6rem; font-size:.82rem; }
.vote__row{ display:grid; grid-template-columns:1fr; gap:.28rem; color:var(--ink); }
.vote__row b{ font-size:.78rem; color:var(--ink-soft); font-variant-numeric:tabular-nums; }
.bar{ height:7px; border-radius:99px; background:rgba(22,53,95,.1); position:relative; overflow:hidden; }
.bar::after{
  content:""; position:absolute; inset:0 auto 0 0; width:var(--p);
  background:linear-gradient(90deg,var(--brand),var(--ocean)); border-radius:99px;
}
.card .vote__foot{ color:#93A4BD; font-size:.74rem; }

/* mock: pisos */
.flat{ display:flex; flex-direction:column; gap:.4rem; font-size:.84rem; }
.flat__badge{
  align-self:flex-start; font-size:.7rem; letter-spacing:.04em;
  background:rgba(44,107,192,.12); color:var(--brand-deep);
  padding:.25rem .5rem; border-radius:99px; margin-bottom:.2rem;
}
.flat__row{ display:flex; justify-content:space-between; gap:.6rem; font-variant-numeric:tabular-nums; }
.card .flat__meta{ display:flex; justify-content:space-between; gap:.6rem; color:#93A4BD; font-size:.74rem;
  padding-bottom:.55rem; border-bottom:1px solid var(--line); }
.flat__row + .flat__meta{ border-bottom:0; }

/* línea de tiempo */
.timeline{
  list-style:none; margin:0; padding:0;
  display:grid; gap:20px; grid-template-columns:repeat(auto-fit,minmax(215px,1fr));
}
.timeline li{
  min-width:0; padding-top:18px; border-top:2px solid var(--line);
  display:flex; flex-direction:column; gap:.45rem;
}
.timeline li:first-child{ border-top-color:var(--brand); }
.timeline__tag{ font-size:.76rem; letter-spacing:.1em; text-transform:uppercase; color:var(--brand); font-weight:600; }
.timeline h3{ font-size:1.08rem; color:var(--brand-deep); }
.timeline p{ color:var(--ink-soft); font-size:.92rem; }

/* ciudades */
.cities{ list-style:none; margin:0; padding:0; display:grid; gap:14px;
  grid-template-columns:repeat(auto-fit,minmax(215px,1fr)); }
.citycard{
  min-width:0; display:flex; flex-direction:column; gap:.3rem;
  border:1px solid var(--line); border-radius:14px; padding:16px;
  background:#fff; font-variant-numeric:tabular-nums;
}
.citycard b{ font-family:var(--display); font-size:1.15rem; color:var(--brand-deep); }
.citycard span:last-child{ color:var(--ink-soft); font-size:.84rem; }
.citycard__state{
  align-self:flex-start; font-size:.7rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--ink-soft); border:1px solid var(--line); border-radius:99px; padding:.18rem .5rem;
}
.citycard--live{ border-color:rgba(44,107,192,.45); background:rgba(44,107,192,.06); }
.citycard--live .citycard__state{ color:var(--brand); border-color:rgba(44,107,192,.5); }
.cities__note{ color:var(--ink-soft); font-size:.9rem; margin-top:18px; }

/* B2B */
.split{ display:grid; gap:clamp(24px,4vw,48px); grid-template-columns:repeat(auto-fit,minmax(310px,1fr)); align-items:start; }
.split > div{ min-width:0; display:flex; flex-direction:column; gap:1rem; }
.split p{ color:var(--ink-soft); }
.ticks{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:.7rem; }
.ticks li{ position:relative; padding-left:1.7rem; color:var(--ink-soft); font-size:.95rem; }
.ticks li::before{
  content:""; position:absolute; left:0; top:.45em; width:9px; height:9px; border-radius:50%;
  background:var(--brand); box-shadow:0 0 0 4px rgba(44,107,192,.14);
}
.fineprint{ font-size:.84rem; color:#93A4BD; }

.panel{
  background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:22px;
  display:flex; flex-direction:column; gap:1rem; font-variant-numeric:tabular-nums;
  box-shadow:var(--shadow);
}
.panel__label{ font-size:.78rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-soft); }
.panel__big{ display:flex; align-items:baseline; gap:.6rem; }
.panel__big b{ font-family:var(--display); font-size:clamp(2.6rem,6vw,3.6rem); line-height:1; color:var(--brand); }
.panel__big span{ color:var(--ink-soft); font-size:.92rem; }
.panel__grid{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; }
.panel__grid div{ border-top:1px solid var(--line); padding-top:.6rem; display:flex; flex-direction:column; }
.panel__grid b{ font-family:var(--display); font-size:1.3rem; color:var(--brand-deep); }
.panel__grid span{ color:var(--ink-soft); font-size:.8rem; }
.panel__foot{ color:#93A4BD; font-size:.78rem; }

/* CTA */
.cta{ text-align:center; display:flex; flex-direction:column; align-items:center; gap:1rem; }
.cta p{ color:var(--ink-soft); }

/* pie */
.foot{
  border-top:1px solid var(--line);
  max-width:var(--wrap); margin-inline:auto;
  padding:clamp(28px,4vw,44px) 20px;
  display:flex; flex-wrap:wrap; gap:1rem 2rem; align-items:center;
}
.foot__brand{ font-family:var(--display); font-weight:700; color:var(--brand-deep); }
.foot__links{ display:flex; flex-wrap:wrap; gap:1rem; font-size:.9rem; color:var(--ink-soft); margin-left:auto; }
.foot__links a{ text-decoration:none; }
.foot__links a:hover{ color:var(--brand-deep); }
.foot__legal{ flex:1 0 100%; font-size:.78rem; color:#93A4BD; }

/* ───────────────────────── accesibilidad ───────────────────────── */
@media (prefers-reduced-motion: reduce){
  .globe__body,.land,.city,.wordmark,.hero__copy,.ticker{
    animation:none !important; opacity:1 !important; transform:none !important; translate:none !important;
  }
  .plane{ opacity:1; }
  .plane.is-parked{ animation:none; }
  .btn{ transition:none; }
}

/* ───────────────────── páginas de contenido ───────────────────── */
.prose{
  max-width:760px; margin-inline:auto;
  padding-block:clamp(26px,5vw,52px) clamp(40px,6vw,72px); padding-inline:20px;
  display:flex; flex-direction:column; gap:1rem;
}
.prose h1{ font-size:clamp(1.9rem,4.4vw,2.7rem); color:var(--brand-deep); }
.prose h2{ font-size:clamp(1.25rem,2.6vw,1.6rem); margin-top:1.4rem; }
.prose p{ color:var(--ink); }
.prose .lede{ font-size:1.08rem; color:var(--ink-soft); }
.prose ul{ margin:0; padding-left:1.25rem; display:flex; flex-direction:column; gap:.45rem; color:var(--ink-soft); }
.prose a{ color:var(--brand); text-underline-offset:3px; }
.prose a:hover{ color:var(--brand-deep); }
.prose .note{ font-size:.92rem; color:var(--ink-soft); }
.prose .source{ font-size:.82rem; color:#93A4BD; margin-top:1.4rem; }

.crumbs{ font-size:.85rem; color:var(--ink-soft); }
.crumbs a{ color:var(--ink-soft); text-decoration:none; }
.crumbs a:hover{ color:var(--brand); }

.factbox{
  display:grid; gap:14px; grid-template-columns:repeat(auto-fit,minmax(128px,1fr));
  background:var(--bg-2); border:1px solid var(--line); border-radius:var(--r);
  padding:18px; margin-block:.6rem; font-variant-numeric:tabular-nums;
}
.factbox div{ display:flex; flex-direction:column; min-width:0; }
.factbox b{ font-family:var(--display); font-size:1.25rem; color:var(--brand-deep); }
.factbox span{ font-size:.8rem; color:var(--ink-soft); }

.faq{ border:1px solid var(--line); border-radius:12px; padding:12px 16px; background:#fff; }
.faq + .faq{ margin-top:-.4rem; }
.faq summary{ cursor:pointer; font-weight:600; color:var(--brand-deep); }
.faq p{ margin-top:.5rem; color:var(--ink-soft); }

.cta-box{
  background:var(--bg-2); border:1px solid var(--line); border-radius:var(--r);
  padding:24px; margin-block:1.4rem; display:flex; flex-direction:column; gap:.7rem; align-items:flex-start;
}
.cta-box h2{ margin-top:0; }

.citylinks{ display:flex; flex-wrap:wrap; gap:.5rem 1rem; list-style:none; padding:0; }
.guides{ list-style:none; padding:0; display:grid; gap:16px; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); }
.card--link{ gap:.4rem; }
.card--link h2{ margin:0; font-size:1.12rem; }
.card--link h2 a{ text-decoration:none; }
.prose .cities{ display:grid; gap:14px; grid-template-columns:repeat(auto-fit,minmax(215px,1fr)); padding:0; }
.prose .cities a{ text-decoration:none; }

/* bloque de resumen: lo que Google y las IA citan primero */
.answer{
  border:1px solid rgba(44,107,192,.35); border-left:4px solid var(--brand);
  background:var(--bg-2); border-radius:var(--r); padding:20px 22px;
  display:flex; flex-direction:column; gap:.6rem; margin-block:.4rem 1rem;
}
.answer h2{ margin:0; font-size:1.05rem; letter-spacing:.02em; text-transform:uppercase; color:var(--brand); }
.answer ul{ color:var(--ink); gap:.5rem; }
.answer__src{ font-size:.8rem; color:#93A4BD; }