/* ============================================================
   PANTALLA DE BIENVENIDA — IEB Villa Celestina
   Capa independiente: no modifica la estructura de la web.
============================================================ */
.welcome-screen{
  position:fixed;
  inset:0;
  z-index:10000;
  width:100%;
  height:100dvh;
  min-height:100svh;
  max-height:100dvh;
  overflow:hidden;
  background:#070203;
  display:grid;
  place-items:center;
  isolation:isolate;
  opacity:1;
  visibility:visible;
  transition:opacity .7s cubic-bezier(.22,.61,.36,1), visibility .7s;
}
.welcome-screen.is-leaving{
  opacity:0;
  visibility:hidden;
  pointer-events:none;
}
.welcome-screen__video,
.welcome-screen__image{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
}
.welcome-screen__video{z-index:-4;background:#070203}
.welcome-screen__image{z-index:-5;background-size:cover;background-position:center}
.welcome-screen::before{
  content:"";
  position:absolute;
  inset:-25%;
  z-index:-3;
  background:
    radial-gradient(circle at 85% 12%,rgba(242,168,60,.16),transparent 30%),
    radial-gradient(circle at 12% 85%,rgba(185,43,0,.16),transparent 32%),
    radial-gradient(circle at 50% 44%,rgba(122,22,32,.16),transparent 34%),
    linear-gradient(180deg,rgba(0,0,0,.48),rgba(0,0,0,.18) 36%,rgba(0,0,0,.72)),
    linear-gradient(90deg,rgba(0,0,0,.34),transparent 35%,transparent 65%,rgba(0,0,0,.32));
  animation:welcomeAbstractDrift 40s ease-in-out infinite;
}
@keyframes welcomeAbstractDrift{
  0%, 100%{ transform:rotate(0deg) scale(1); }
  50%{ transform:rotate(3deg) scale(1.05); }
}
@media (prefers-reduced-motion:reduce){
  .welcome-screen::before{ animation:none; }
}
.welcome-screen::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:-2;
  background:radial-gradient(circle at center,transparent 38%,rgba(0,0,0,.34) 100%);
  pointer-events:none;
}
.welcome-screen__content{
  width:min(940px,calc(100% - 36px));
  display:grid;
  justify-items:center;
  text-align:center;
  gap:20px;
  padding:
    max(24px,env(safe-area-inset-top))
    max(18px,env(safe-area-inset-right))
    max(30px,env(safe-area-inset-bottom))
    max(18px,env(safe-area-inset-left));
  transform:translateY(10px);
  opacity:0;
  animation:welcomeContentIn .95s .18s cubic-bezier(.22,.61,.36,1) forwards;
}
.welcome-screen__logo{
  width:clamp(56px,8vw,82px);
  height:auto;
  filter:drop-shadow(0 0 24px rgba(224,114,18,.28));
}
.welcome-screen__eyebrow{
  margin:0;
  color:#eedbbf;
  font-size:clamp(.66rem,1.2vw,.8rem);
  font-weight:800;
  letter-spacing:.28em;
  text-transform:uppercase;
  text-shadow:0 4px 18px rgba(0,0,0,.65);
}
.welcome-screen__title{
  margin:0;
  max-width:950px;
  font-family:Montserrat,Manrope,sans-serif;
  font-size:clamp(2.5rem,7vw,6.6rem);
  line-height:.94;
  letter-spacing:-.055em;
  font-weight:900;
  color:#fff;
  text-wrap:balance;
  text-shadow:0 10px 34px rgba(0,0,0,.55),0 0 38px rgba(0,0,0,.24);
}
.welcome-screen__title span{color:#e07212}
.welcome-screen__subtitle{
  max-width:690px;
  color:rgba(250,249,247,.86);
  font-size:clamp(.9rem,1.9vw,1.06rem);
  line-height:1.6;
  text-shadow:0 5px 20px rgba(0,0,0,.55);
}
.welcome-screen__button{
  min-width:min(300px,80vw);
  min-height:58px;
  margin-top:7px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border:1px solid rgba(255,255,255,.22);
  border-radius:999px;
  padding:0 30px;
  background:linear-gradient(135deg,#e07212,#b93108);
  color:#100204;
  font-family:Manrope,sans-serif;
  font-size:.9rem;
  font-weight:900;
  letter-spacing:.08em;
  text-transform:uppercase;
  cursor:pointer;
  box-shadow:0 18px 55px rgba(0,0,0,.34),0 0 0 1px rgba(224,114,18,.12),0 0 35px rgba(224,114,18,.18);
  transition:transform .24s ease,box-shadow .24s ease,filter .24s ease;
}
.welcome-screen__button::after{
  content:"→";
  font-size:1.15rem;
  transition:transform .24s ease;
}
.welcome-screen__button:hover{
  transform:translateY(-3px) scale(1.01);
  box-shadow:0 22px 62px rgba(0,0,0,.4),0 0 42px rgba(224,114,18,.22);
  filter:saturate(1.06) brightness(1.03);
}
.welcome-screen__button:hover::after{transform:translateX(4px)}
.welcome-screen__button:focus-visible{
  outline:none;
  box-shadow:0 0 0 4px rgba(255,255,255,.28),0 0 0 8px rgba(224,114,18,.26),0 18px 55px rgba(0,0,0,.34);
}
.welcome-screen__hint{
  color:rgba(255,255,255,.58);
  font-size:.72rem;
  letter-spacing:.06em;
}
.welcome-seen .welcome-screen{display:none !important}
body.welcome-open{overflow:hidden}
body.welcome-open .navbar,
body.welcome-open main,
body.welcome-open .footer,
body.welcome-open .chatbot-trigger,
body.welcome-open .chatbot-panel{visibility:hidden}

@keyframes welcomeContentIn{
  from{opacity:0;transform:translateY(20px) scale(.985)}
  to{opacity:1;transform:none}
}

@media (max-width:640px){
  .welcome-screen__content{gap:15px;width:min(100%,calc(100% - 28px))}
  .welcome-screen__title{font-size:clamp(2.35rem,12vw,4rem)}
  .welcome-screen__subtitle{max-width:330px;font-size:.9rem}
  .welcome-screen__button{width:min(320px,90vw);min-height:56px}
  .welcome-screen__hint{font-size:.67rem}
}

@media (max-width:640px){
  .welcome-screen__content{
    width:min(100%,calc(100% - 22px));
    gap:12px;
    padding-top:max(18px,env(safe-area-inset-top));
    padding-right:max(14px,env(safe-area-inset-right));
    padding-bottom:max(22px,env(safe-area-inset-bottom));
    padding-left:max(14px,env(safe-area-inset-left));
  }
  .welcome-screen__logo{width:clamp(46px,13vw,66px)}
  .welcome-screen__eyebrow{font-size:.58rem;letter-spacing:.18em;max-width:94vw}
  .welcome-screen__title{font-size:clamp(2.05rem,11vw,3.65rem);line-height:.96;letter-spacing:-.045em}
  .welcome-screen__subtitle{max-width:32rem;font-size:.84rem;line-height:1.45}
  .welcome-screen__button{width:min(100%,320px);min-height:54px;padding-inline:24px;font-size:.82rem}
  .welcome-screen__hint{font-size:.62rem}
}

@media (max-height:680px) and (max-width:900px){
  .welcome-screen__content{gap:9px}
  .welcome-screen__logo{width:46px}
  .welcome-screen__title{font-size:clamp(1.85rem,7.4vw,3.15rem)}
  .welcome-screen__subtitle{font-size:.78rem;line-height:1.35;max-width:31rem}
  .welcome-screen__hint{display:none}
}

@media (orientation:landscape) and (max-width:900px){
  .welcome-screen__content{grid-template-columns:auto 1fr;justify-items:start;text-align:left;column-gap:18px;row-gap:8px;align-items:center;max-width:760px}
  .welcome-screen__logo{grid-row:1 / span 4}
  .welcome-screen__eyebrow,.welcome-screen__title,.welcome-screen__subtitle{max-width:none}
  .welcome-screen__button{width:min(320px,70vw)}
  .welcome-screen__hint{display:none}
}

@media (prefers-reduced-motion:reduce){
  .welcome-screen__content{animation:none;opacity:1;transform:none}
  .welcome-screen,.welcome-screen__button,.welcome-screen__button::after{transition:none}
}