/* ═══ ELECTROSOL — Smart Hydration ═══ */
:root{
  --accent:#FFC107;
  --navy:#0B1D3A; --navy-deep:#061225; --cyan:#00B6C8; --gold:#FFC107;
  --white:#fff; --ink:#0B1D3A; --mist:#F4F8FA; --line:rgba(11,29,58,.12);
  --display:'MuseoModerno',system-ui,sans-serif;
  --body:'Plus Jakarta Sans',system-ui,sans-serif;
  --ease:cubic-bezier(.22,1,.36,1);
  --pad:clamp(1.25rem,5vw,6rem);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--body);background:var(--navy-deep);color:var(--ink);
  overflow-x:hidden;-webkit-font-smoothing:antialiased}
img,canvas{display:block;max-width:100%}
::selection{background:var(--cyan);color:#fff}

::-webkit-scrollbar{width:9px}
::-webkit-scrollbar-track{background:var(--navy-deep)}
::-webkit-scrollbar-thumb{background:var(--cyan);border-radius:9px}

/* ═══ PRELOADER ═══ */
.boot{position:fixed;inset:0;z-index:999;background:var(--white);
  display:grid;place-content:center;justify-items:center;gap:1.4rem;
  transition:opacity .8s var(--ease),visibility .8s}
.boot.is-done{opacity:0;visibility:hidden}
.boot__mark{width:78px;height:78px}
.boot__mark svg{width:100%;height:100%}
.boot__sun{transform-origin:50px 50px;animation:spin 9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.boot__word{font-family:var(--display);font-weight:300;letter-spacing:.42em;
  font-size:.78rem;color:var(--navy);padding-left:.42em}
.boot__bar{width:min(240px,60vw);height:2px;background:var(--line);overflow:hidden}
.boot__bar i{display:block;height:100%;width:0;background:var(--cyan);
  transition:width .35s var(--ease)}
.boot__pct{font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;
  color:rgba(11,29,58,.42);font-weight:500}

/* ═══ NAV ═══ */
.nav{position:fixed;top:0;left:0;right:0;z-index:80;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:1.1rem var(--pad);
  opacity:0;transform:translateY(-12px);
  transition:opacity .9s var(--ease) .9s,transform .9s var(--ease) .9s}
.nav.is-ready{opacity:1;transform:none}
.nav{color:var(--navy);transition:color .5s var(--ease)}
.nav.is-light{color:#fff}
.nav a{color:inherit}
.nav.is-light .nav__logo{text-shadow:0 2px 24px rgba(0,0,0,.4)}
.nav__logo{font-family:var(--display);font-weight:700;font-size:1.28rem;letter-spacing:-.02em}
.nav__links{display:flex;gap:2rem}
.nav__links a{text-decoration:none;font-size:.76rem;font-weight:500;
  letter-spacing:.13em;text-transform:uppercase;opacity:.72;transition:opacity .3s}
.nav__links a:hover{opacity:1}
.nav__cta{text-decoration:none;font-size:.72rem;font-weight:700;letter-spacing:.13em;
  text-transform:uppercase;border:1px solid currentColor;padding:.6rem 1.1rem;border-radius:99px}
.nav__logo{text-decoration:none}

/* selector de idioma */
.nav__right{display:flex;align-items:center;gap:clamp(.7rem,2vw,1.4rem)}
.lang{display:flex;align-items:center;gap:.5rem}
.lang__btn{background:none;border:0;cursor:pointer;font-family:var(--body);
  color:inherit;opacity:.45;font-size:.72rem;font-weight:700;letter-spacing:.12em;
  padding:.35rem .1rem;transition:opacity .3s var(--ease)}
.lang__btn:hover{opacity:.8}
.lang__btn.is-on{opacity:1;color:var(--cyan)}
.lang__sep{width:1px;height:11px;background:currentColor;opacity:.3}
@media(max-width:820px){.nav__links{display:none}}
@media(max-width:420px){.nav__cta{display:none}}

/* ═══ ESCENA CINEMÁTICA ═══ */
.film{position:relative;height:760vh;background:var(--white)}
.film__stage{position:sticky;top:0;height:100svh;overflow:hidden;
  contain:layout paint;transform:translateZ(0)}
.film__canvas{position:absolute;inset:0;width:100%;height:100%;
  will-change:transform;transform:translateZ(0);backface-visibility:hidden}
.film__grain{position:absolute;inset:0;pointer-events:none;opacity:.12;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E")}

.beat{position:absolute;inset:0;padding:calc(var(--pad) + 3.5rem) var(--pad) var(--pad);
  display:flex;flex-direction:column;justify-content:center;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .5s var(--ease),transform .65s var(--ease),visibility .5s;
  will-change:opacity,transform}
.beat.is-on{opacity:1;visibility:visible;transform:none}
.beat--left{align-items:flex-start;text-align:left;transform:translateX(-34px)}
.beat--right{align-items:flex-end;text-align:right;transform:translateX(34px)}
.beat--hero,.beat--final{align-items:stretch;justify-content:space-between;
  text-align:left;transform:translateY(26px)}
.beat > *{max-width:min(30rem,88vw)}
.beat--hero > *,.beat--final > *{max-width:none}

.hero__top{flex:0 0 auto}

/* ── selector de sabor ── */
.flavors{display:inline-flex;align-items:center;gap:.3rem;
  pointer-events:auto;                       /* los .beat los desactivan */
  padding:.3rem;border-radius:99px;
  background:rgba(255,255,255,.55);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 6px 26px rgba(11,29,58,.09)}
.flavor{--dot:var(--gold);
  display:inline-flex;align-items:center;gap:.55rem;cursor:pointer;
  font-family:var(--body);font-size:.68rem;font-weight:700;
  letter-spacing:.13em;text-transform:uppercase;white-space:nowrap;
  color:var(--navy);background:transparent;border:0;
  padding:.62rem 1.05rem;border-radius:99px;opacity:.5;
  transition:opacity .35s var(--ease),background .35s var(--ease)}
.flavor:hover{opacity:.85}
.flavor.is-on{opacity:1;background:var(--navy);color:#fff}
.flavor:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

/* mientras entra la otra secuencia */
.flavors.is-loading{cursor:progress}
.flavors.is-loading .flavor.is-on .flavor__dot{animation:pulse .9s ease-in-out infinite}
@keyframes pulse{50%{opacity:.25;transform:scale(.72)}}
.flavor__dot{width:9px;height:9px;border-radius:50%;background:var(--dot);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--dot) 28%,transparent);
  transition:box-shadow .35s var(--ease)}
.flavor.is-on .flavor__dot{box-shadow:0 0 0 3px color-mix(in srgb,var(--dot) 45%,transparent)}
.hero__note{margin-top:.95rem;font-size:.66rem;font-weight:700;
  letter-spacing:.22em;text-transform:uppercase;opacity:.9}
.hero__note .flavor__note{color:var(--accent);
  transition:color .4s var(--ease)}

@media(max-width:700px){
  .flavor{font-size:.6rem;letter-spacing:.08em;padding:.55rem .75rem;gap:.4rem}
  .hero__note{letter-spacing:.14em;font-size:.6rem}
}
.hero__bottom{flex:0 0 auto;display:flex;align-items:flex-end;justify-content:space-between;
  gap:2rem;flex-wrap:wrap}
.hero__mark{flex:0 1 auto}
.hero__aside{flex:0 1 20rem;text-align:right}

.final__top{flex:0 0 auto;text-align:center}
.final__bottom{flex:0 0 auto;text-align:center;padding-bottom:clamp(.5rem,3vh,2rem)}

/* las latas nuevas ocupan más centro y los fondos son más vivos:
   un velo suave desde el borde mantiene el texto legible sin tapar el producto */
@media(min-width:701px){
  .beat--left::before,.beat--right::before,.beat--final::after{
    content:"";position:absolute;top:0;bottom:0;width:56%;
    pointer-events:none;z-index:0}
  .beat--left::before{left:0}
  .beat--right::before{right:0}
  .beat--left[data-tone="dark"]::before,.beat--left[data-tone="mid"]::before{
    background:linear-gradient(to right,rgba(255,255,255,.92),rgba(255,255,255,.62) 42%,transparent)}
  .beat--right[data-tone="dark"]::before,.beat--right[data-tone="mid"]::before{
    background:linear-gradient(to left,rgba(255,255,255,.92),rgba(255,255,255,.62) 42%,transparent)}
  .beat--left[data-tone="light"]::before{
    background:linear-gradient(to right,rgba(4,14,22,.88),rgba(4,14,22,.5) 42%,transparent)}
  .beat--right[data-tone="light"]::before{
    background:linear-gradient(to left,rgba(4,14,22,.88),rgba(4,14,22,.5) 42%,transparent)}

  /* el cierre: velo sólo en la franja inferior, sobre el aro de neón */
  .beat--final::after{width:100%;top:auto;height:34%;
    background:linear-gradient(to top,rgba(255,255,255,.93),rgba(255,255,255,.62) 48%,transparent)}

  .beat > *{position:relative;z-index:1}
  .beat--left > *,.beat--right > *{max-width:min(25rem,36vw)}
  .beat--right .ticker{max-width:min(25rem,36vw);gap:1.15rem}
}

.beat[data-tone="dark"]{color:var(--navy)}
.beat[data-tone="mid"]{color:#0B1D3A;text-shadow:0 1px 30px rgba(255,255,255,.85)}
.beat[data-tone="light"]{color:#fff;text-shadow:0 2px 40px rgba(0,0,0,.45)}

.eyebrow{font-size:.68rem;font-weight:700;letter-spacing:.3em;text-transform:uppercase;
  opacity:.65;margin-bottom:1.1rem}
.eyebrow--gold{color:var(--gold);opacity:1}
.eyebrow--cyan{color:var(--cyan);opacity:1}

.hero__title{font-family:var(--display);font-weight:700;letter-spacing:-.045em;line-height:.85;
  font-size:clamp(3rem,9.5vw,8rem)}
.hero__title span{font-weight:200}
.hero__sub{font-family:var(--body);font-weight:500;color:var(--cyan);
  letter-spacing:.44em;font-size:clamp(.66rem,1.7vw,1rem);
  text-transform:uppercase;margin:.7rem 0 0;padding-left:.44em}
.hero__line{font-family:var(--display);font-weight:300;line-height:1.35;
  font-size:clamp(1rem,1.9vw,1.4rem);opacity:.78}
.scrollcue{margin-top:1.8rem;font-size:.6rem;letter-spacing:.34em;text-transform:uppercase;
  opacity:.45;display:flex;flex-direction:column;align-items:flex-end;gap:.7rem}
.scrollcue span{width:1px;height:46px;background:currentColor;transform-origin:top;
  animation:cue 2.1s var(--ease) infinite}
@keyframes cue{0%{transform:scaleY(0)}45%{transform:scaleY(1)}100%{transform:scaleY(0);transform-origin:bottom}}

.beat__num{font-family:var(--display);font-weight:700;font-size:.86rem;
  color:var(--cyan);letter-spacing:.2em;margin-bottom:1rem}
.beat__title{font-family:var(--display);font-weight:500;letter-spacing:-.035em;
  line-height:.98;font-size:clamp(2.3rem,6.4vw,4.6rem);margin-bottom:1.35rem}
.beat__body{font-size:clamp(.95rem,1.55vw,1.1rem);line-height:1.65;font-weight:300;opacity:.82}
.beat__body--center{margin-inline:auto;max-width:34rem}
.final__title{font-family:var(--display);font-weight:700;letter-spacing:-.045em;line-height:.95;
  font-size:clamp(2.2rem,6.6vw,5.4rem);margin-bottom:0}

.ticker{list-style:none;display:flex;gap:1.6rem;margin-top:1.8rem;justify-content:flex-end;flex-wrap:wrap}
.ticker li{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;font-weight:500;opacity:.7}
.ticker b{font-family:var(--display);font-size:1.5rem;display:block;color:var(--cyan);
  letter-spacing:0;margin-bottom:.2rem;opacity:1}

/* ═══ SHEETS ═══ */
.sheet{background:var(--white);padding:clamp(5rem,12vh,9rem) var(--pad);position:relative;z-index:2}
.sheet--dark{background:var(--navy);color:#fff}
.sheet--dark .sheet__title{color:#fff}
.sheet__head{max-width:46rem;margin-bottom:clamp(3rem,7vw,5rem)}
.sheet__title{font-family:var(--display);font-weight:500;letter-spacing:-.035em;
  line-height:1.02;font-size:clamp(2rem,5.4vw,3.9rem);color:var(--navy)}

.rv{opacity:0;transform:translateY(30px);transition:opacity .85s var(--ease),transform .85s var(--ease)}
.rv.is-in{opacity:1;transform:none}

.equation{display:flex;align-items:flex-start;justify-content:center;gap:clamp(.8rem,3vw,2.6rem);
  flex-wrap:wrap;border-top:1px solid var(--line);padding-top:clamp(2.5rem,6vw,4rem)}
.equation figure{text-align:center;max-width:12rem;flex:1 1 8rem}
.equation span{font-family:var(--display);font-weight:200;font-size:2rem;
  color:var(--cyan);align-self:center;padding-top:1.5rem}
.equation__ico{width:62px;height:62px;margin:0 auto 1.1rem;border-radius:50%;
  border:2px solid var(--cyan);position:relative}
.equation__ico[data-ico="sun"]{border-color:var(--gold);box-shadow:0 0 0 5px rgba(255,193,7,.14)}
.equation__ico[data-ico="bolt"]::after{content:"";position:absolute;inset:0;
  background:var(--cyan);clip-path:polygon(58% 16%,32% 56%,48% 56%,42% 84%,68% 44%,52% 44%)}
.equation__ico[data-ico="sun"]::after{content:"";position:absolute;inset:22%;
  border-radius:50%;background:var(--gold)}
.equation__ico[data-ico="drop"]::after{content:"";position:absolute;inset:26%;
  background:var(--cyan);border-radius:50% 50% 50% 0;transform:rotate(-45deg)}
.equation__ico[data-ico="logo"]{border-color:var(--gold);background:
  radial-gradient(circle at 50% 50%,rgba(0,182,200,.16),transparent 70%);
  box-shadow:0 0 0 5px rgba(255,193,7,.14),0 0 30px rgba(0,182,200,.3)}
.equation__ico[data-ico="logo"]::after{content:"";position:absolute;inset:0;
  background:var(--cyan);clip-path:polygon(58% 16%,32% 56%,48% 56%,42% 84%,68% 44%,52% 44%)}
.equation h3{font-family:var(--display);font-weight:500;font-size:1.05rem;
  margin-bottom:.4rem;color:var(--navy)}
.equation p{font-size:.8rem;line-height:1.5;opacity:.6;font-weight:300}
.equation__result h3{color:var(--cyan)}

.grid{display:grid;gap:1px;background:rgba(255,255,255,.14);
  grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),1fr));
  border:1px solid rgba(255,255,255,.14)}
.card{background:var(--navy);padding:clamp(1.8rem,3.4vw,2.8rem);transition:background .45s var(--ease)}
.card:hover{background:#0f2953}
.card__idx{font-family:var(--display);font-weight:700;font-size:.78rem;
  color:var(--gold);letter-spacing:.2em;display:block;margin-bottom:2.6rem}
.card h3{font-family:var(--display);font-weight:500;font-size:1.32rem;
  margin-bottom:.85rem;letter-spacing:-.02em}
.card p{font-size:.92rem;line-height:1.65;font-weight:300;opacity:.7}

.who{display:grid;gap:clamp(2rem,4vw,3rem);
  grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr))}
.who__item{border-top:2px solid var(--cyan);padding-top:1.4rem}
.who__item h3{font-family:var(--display);font-weight:500;font-size:1.45rem;
  color:var(--navy);margin-bottom:.6rem;letter-spacing:-.02em}
.who__item p{font-size:.95rem;line-height:1.6;font-weight:300;opacity:.66}

/* ── volver al inicio ── */
.totop{display:flex;justify-content:center;
  margin-top:clamp(3rem,7vw,5rem);padding-top:clamp(2.5rem,5vw,3.5rem);
  border-top:1px solid var(--line)}
.totop__btn{display:inline-flex;align-items:center;gap:.75rem;text-decoration:none;
  font-size:.72rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--navy);background:transparent;border:1px solid var(--line);
  padding:.95rem 2rem;border-radius:99px;
  transition:color .35s var(--ease),border-color .35s var(--ease),
             background .35s var(--ease),transform .35s var(--ease)}
.totop__btn svg{width:15px;height:15px;transition:transform .35s var(--ease)}
.totop__btn:hover{color:#fff;background:var(--navy);border-color:var(--navy);
  transform:translateY(-3px)}
.totop__btn:hover svg{transform:translateY(-3px)}
.totop__btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* ═══ CTA ═══ */
.cta{background:var(--navy-deep);color:#fff;text-align:center;
  padding:clamp(6rem,16vh,11rem) var(--pad);position:relative;overflow:hidden;z-index:2}
.cta::before{content:"";position:absolute;left:50%;top:50%;width:min(780px,140vw);aspect-ratio:1;
  transform:translate(-50%,-50%);border-radius:50%;
  background:radial-gradient(circle,rgba(0,182,200,.22),transparent 62%)}
.cta > *{position:relative}
.cta__title{font-family:var(--display);font-weight:700;letter-spacing:-.045em;line-height:.92;
  font-size:clamp(2.6rem,9vw,7rem);margin-bottom:2.6rem}
.cta__btn{display:inline-block;text-decoration:none;font-weight:700;font-size:.8rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--navy-deep);background:var(--cyan);
  padding:1.15rem 2.8rem;border-radius:99px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.cta__btn:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(0,182,200,.38)}
.cta__foot{margin-top:3rem;font-size:.63rem;letter-spacing:.32em;text-transform:uppercase;opacity:.4}

.foot{background:var(--navy-deep);color:rgba(255,255,255,.4);position:relative;z-index:2;
  border-top:1px solid rgba(255,255,255,.1);padding:1.6rem var(--pad);
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-size:.7rem;letter-spacing:.1em;text-transform:uppercase}

/* ── rendimiento en tactiles ──────────────────────────────────────────────
   El grano usa mix-blend-mode y la barra de sabores un desenfoque en vivo:
   ambos obligan a recomponer toda la pantalla en cada repintado del canvas.
   En móvil y tablet se sustituyen por equivalentes planos.                  */
@media(max-width:1100px){
  .film__grain{display:none}
  .flavors{backdrop-filter:none;-webkit-backdrop-filter:none;
    background:rgba(255,255,255,.88)}
  .totop__btn:hover{transform:none}
  .cta__btn:hover{transform:none}
}

@media(max-width:700px){
  .film{height:600vh}

  /* el recorte 9:16 agranda la lata: el texto baja a una banda propia
     con degradado de protección para no pisarla */
  .beat{justify-content:flex-end;padding-bottom:2.2rem}
  .beat::before{content:"";position:absolute;left:0;right:0;bottom:0;height:78%;
    pointer-events:none;z-index:0}
  .beat[data-tone="dark"]::before,.beat[data-tone="mid"]::before{
    background:linear-gradient(to top,rgba(255,255,255,.97) 34%,rgba(255,255,255,.82) 58%,transparent)}
  .beat[data-tone="light"]::before{
    background:linear-gradient(to top,rgba(4,12,26,.95) 34%,rgba(4,12,26,.76) 58%,transparent)}
  .beat > *{position:relative;z-index:1}
  .beat[data-tone="mid"]{text-shadow:none}
  .beat[data-tone="light"]{text-shadow:none}

  .beat--hero,.beat--final{justify-content:flex-end}
  .hero__top{position:absolute;top:calc(var(--pad) + 3.5rem);left:var(--pad);z-index:1}
  .hero__bottom{flex-direction:column;align-items:flex-start;gap:1.2rem}
  .hero__aside{text-align:left;flex:1 1 auto}
  .scrollcue{align-items:flex-start;margin-top:1rem}
  .scrollcue span{height:30px}

  /* el cierre reparte arriba/abajo: protege también la cabecera */
  .final__top{text-align:left}
  .final__bottom{text-align:left}
  .beat--final .beat__body--center{margin-inline:0}
  .beat--final::before{height:100%;
    background:linear-gradient(to top,rgba(255,255,255,.95) 14%,rgba(255,255,255,.55) 45%,rgba(255,255,255,.8))}
  .beat--right{align-items:flex-start;text-align:left;transform:translateX(-34px)}
  .ticker{justify-content:flex-start}
  .equation span{display:none}
  .equation figure{flex:1 1 40%}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
}