/* ===== Tokens ===== */
:root{
  --teal:#17B3A3;
  --teal-light:#6FE3D4;
  --navy:#0B3B5C;
  --navy-dark:#062338;
  --ink:#0A1F2C;
  /* Aclarado 2026-10-01 hacia el celeste del boceto del cliente (antes
     #F4FAFB, casi blanco puro). */
  --paper:#EAF4FB;
  --white:#FFFFFF;
  /* Verde de marca — muestreado de la hoja del logo real (≈#9DC420),
     ajustado para contraste de texto blanco en botones. Alineado con los
     CTA verdes del boceto del cliente (2026-10-01). */
  --green:#4C9A2E;
  --green-dark:#3B7A23;

  --font-sans:'DM Sans', -apple-system, "Segoe UI", sans-serif;

  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:40px;
  --space-5:64px;
  --space-6:96px;

  --radius-lg:24px;
  --radius-md:16px;
  --shadow-soft:0 20px 60px rgba(11,59,92,.14);
  --ease:cubic-bezier(.22,1,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto;} }

body{
  font-family:var(--font-sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}

img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}

:focus-visible{outline:2.5px solid var(--teal-light);outline-offset:3px;border-radius:4px;}
.section--dark :focus-visible, .stage :focus-visible{outline-color:var(--teal-light);}

.skip-link{
  position:absolute;left:-9999px;top:0;
  background:var(--navy);color:var(--white);padding:10px 16px;border-radius:8px;z-index:200;
}
.skip-link:focus{left:16px;top:16px;}

.container{max-width:1200px;margin:0 auto;padding:0 var(--space-3);}
.container--narrow{max-width:760px;}
.center{text-align:center;}

/* ===== Nav ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:var(--space-2) 0;
  transition:background .3s var(--ease), box-shadow .3s var(--ease);
}
.nav.is-scrolled{background:rgba(244,250,251,.88);backdrop-filter:blur(10px);box-shadow:0 8px 30px rgba(11,59,92,.08);}
.nav__inner{
  max-width:1200px;margin:0 auto;padding:0 var(--space-3);
  display:flex;align-items:center;justify-content:space-between;
}
.nav__brand{
  display:flex;align-items:center;gap:10px;
  font-weight:700;font-size:1.15rem;letter-spacing:.02em;color:var(--white);
  transition:color .3s var(--ease);
}
.nav.is-scrolled .nav__brand{color:var(--navy);}
.nav__links{display:flex;align-items:center;gap:var(--space-4);}
.nav__links a{color:var(--white);font-weight:600;font-size:.95rem;text-decoration:none;opacity:.85;transition:opacity .2s var(--ease);}
.nav__links a:hover{opacity:1;}
.nav.is-scrolled .nav__links a{color:var(--navy);}
@media (max-width:760px){.nav__links{display:none;}}
.nav__logo{
  height:30px;width:auto;
  filter:brightness(0) invert(1);
  transition:filter .3s var(--ease);
}
.nav.is-scrolled .nav__logo{filter:none;}
.nav__cta{
  background:var(--green);color:var(--white);
  padding:10px 20px;border-radius:999px;font-weight:700;font-size:.9rem;
  transition:transform .25s var(--ease), background .25s var(--ease);
}
.nav__cta:hover{background:var(--green-dark);transform:translateY(-1px);}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-weight:700;font-size:1rem;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
}
.btn--primary{background:var(--green);color:var(--white);box-shadow:0 12px 30px rgba(76,154,46,.35);}
.btn--primary:hover{background:var(--green-dark);transform:translateY(-2px);}
.btn--outline{border:1.5px solid var(--navy);color:var(--navy);margin-top:var(--space-3);}
.btn--outline:hover{background:var(--navy);color:var(--white);}
.btn--lg{padding:18px 36px;font-size:1.1rem;margin-top:var(--space-3);}

/* ===== Typography ===== */
.eyebrow{
  font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--teal-light);margin-bottom:var(--space-2);
}
.eyebrow--dark{color:var(--teal);}
.eyebrow--light{color:var(--teal-light);}
.h2{
  font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:700;line-height:1.15;
  margin-bottom:var(--space-3);color:var(--navy);
}
.h2--light{color:var(--white);}
.body-lg{font-size:clamp(1.05rem,1.3vw,1.2rem);color:#3A5566;max-width:640px;}
.center .body-lg{margin-inline:auto;}
.body-lg--light{color:#CFE6EA;}

/* ===== Sections ===== */
.section{padding:var(--space-6) 0;}
/* Móvil: 96px arriba + 96px abajo dejaban 192px de vacío entre secciones del
   mismo fondo (medido 2026-10-05). Con 56px quedan 112px, aire de sobra sin
   que se sienta un hueco. */
@media (max-width:760px){
  .section{padding:56px 0;}
  .section .dual-card__inner, .section .tilt-card__inner{padding:var(--space-3);}
}
.section--light{background:var(--paper);}
.section--dark{background:var(--navy-dark);color:var(--white);}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
}

/* ===== Stage 3D: hero + los 3 formatos en un mismo scroll continuo
   (restaurado 2026-09-30, ver 04-experiencia.md §3.1 y 00-brief.md) ===== */
.stage{position:relative;height:420vh;background:linear-gradient(160deg,var(--navy) 0%,var(--navy-dark) 100%);}
.stage__sticky{
  position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
}
.stage__canvas{position:absolute;inset:0;width:100%;height:100%;display:block;}

.stage__fallback{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;}
.fallback-shape{width:min(50vw,260px);height:min(50vw,300px);position:relative;}
.fallback-shape--drop{
  background:radial-gradient(circle at 35% 30%, var(--teal-light), var(--teal) 55%, var(--navy) 100%);
  border-radius:50% 50% 50% 4%;
  box-shadow:0 40px 80px rgba(0,0,0,.35);
  animation:bob 5s ease-in-out infinite;
}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-6deg);}50%{transform:translateY(-16px) rotate(-2deg);}}
@media (prefers-reduced-motion: reduce){ .fallback-shape--drop{animation:none;} }

.stage__overlay{
  position:absolute;inset:0;z-index:5;
  display:flex;align-items:center;
  pointer-events:none;
}
.stage__overlay-inner{position:relative;width:100%;height:1px;}
.stage__copy{
  position:absolute;left:var(--space-3);top:50%;
  transform:translateY(-50%);
  width:min(560px,86vw);
  color:var(--white);
  opacity:0;pointer-events:none;
  transition:opacity .5s var(--ease);
}
.stage__copy.is-active{opacity:1;pointer-events:auto;}
@media (max-width:640px){
  .stage__copy{top:12%;transform:none;width:calc(100vw - var(--space-3)*2);}
  .stage__copy .lead{max-width:none;}
}
.stage__copy h1{
  font-size:clamp(2.4rem,6vw,4.6rem);font-weight:900;line-height:1.05;
  margin-bottom:var(--space-2);
}
.stage__copy h2{
  font-size:clamp(1.8rem,4vw,3rem);font-weight:900;line-height:1.1;
  margin-bottom:var(--space-2);
}
.stage__copy .lead{font-size:clamp(1rem,1.5vw,1.25rem);color:#D7ECEF;max-width:460px;margin-bottom:var(--space-3);}
.stage__copy .btn{pointer-events:auto;}

/* Eslogan de marca — "La vida sabe mejor" (2026-10-01, alineado con el
   boceto del cliente, donde aparece en el hero, Nosotros y footer). */
.tagline{
  font-style:italic;font-weight:700;color:var(--teal-light);
  margin-bottom:var(--space-2);
}
.tagline--dark{color:var(--green);}
.stage__hint{margin-top:var(--space-3);font-size:.85rem;color:#9FC9CF;animation:pulse 2.4s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:.5;}50%{opacity:1;}}
@media (prefers-reduced-motion: reduce){ .stage__hint{animation:none;opacity:.8;} }

.stage__note{
  display:flex;align-items:flex-start;gap:10px;
  margin-top:var(--space-3);padding:12px 16px;max-width:420px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-md);backdrop-filter:blur(6px);
  font-size:.9rem;color:#D7ECEF;line-height:1.4;
  pointer-events:auto;
}
.stage__note-icon{width:18px;height:18px;flex:none;margin-top:1px;color:var(--teal-light);}

.stage__scrim{
  position:absolute;inset:0;z-index:4;pointer-events:none;
  background:linear-gradient(90deg, rgba(6,35,56,.72) 0%, rgba(6,35,56,.5) 32%, rgba(6,35,56,.12) 58%, transparent 78%);
}

/* Fotos reales — único contenido visual de los formatos (sin malla 3D).
   La opacidad la controla script.js cuadro a cuadro (scroll-scrubbed o
   ciclo automático), por eso NO lleva transition de opacity: competiría
   con las actualizaciones por frame y se sentiría con retraso/tirones.
   Posición aproximada a donde cae la gota (centrado, a la derecha del
   texto). */
.stage__float{
  position:absolute;z-index:3;
  left:62%;top:50%;
  transform:translate(-50%,-50%);
  max-height:52vh;max-width:38vw;width:auto;height:auto;
  object-fit:contain;
  opacity:0;pointer-events:none;
  filter:drop-shadow(0 30px 40px rgba(6,35,56,.45));
  animation:floatProduct 4.5s ease-in-out infinite;
}
@keyframes floatProduct{0%,100%{margin-top:0;}50%{margin-top:-14px;}}
@media (prefers-reduced-motion: reduce){ .stage__float{animation:none;} }

/* Logo grande a la derecha, solo durante el momento inicial del hero
   (2026-10-01, pedido del usuario — llena el espacio vacío antes de que
   la gota crezca). Blanco sobre el fondo oscuro del stage, igual que en
   nav/footer. */
.stage__hero-brand{
  position:absolute;
  right:6%;top:50%;transform:translateY(-50%);
  width:min(50vw,700px);aspect-ratio:1 / .86;
  opacity:0;pointer-events:none;
}
.stage__hero-logo{
  position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);
  width:100%;height:auto;z-index:2;
  filter:brightness(0) invert(1) drop-shadow(0 6px 22px rgba(6,35,56,.6));
}
/* Los dos formatos reales abiertos en abanico (como una baraja) por detrás
   del logo: ambos giran desde un mismo punto en la base. */
.stage__hero-pack{
  position:absolute;z-index:1;width:auto;
  bottom:4%;transform-origin:50% 100%;
  filter:drop-shadow(0 24px 34px rgba(6,35,56,.5));
}
.stage__hero-pack--jug{height:84%;left:46%;transform:translateX(-50%) rotate(-13deg);}
.stage__hero-pack--bottle{height:100%;left:54%;transform:translateX(-50%) rotate(12deg);}
/* ===== Móvil (<900px): el stage aprovecha TODA la pantalla =====
   Texto arriba, imagen (logo / foto del producto) en la mitad de abajo —
   antes la mitad inferior quedaba vacía.
   Nota técnica: `.stage__copy` vive dentro de `.stage__overlay-inner`, que
   en desktop mide `height:1px` (truco de centrado flex + translateY(-50%)).
   Un `top:%` con `transform:none` se calcularía contra ese 1px, así que en
   móvil se le da altura real para que los porcentajes signifiquen lo que
   dicen. */
@media (max-width:900px){
  .stage__overlay-inner{height:100%;}

  /* Logo del cliente en la mitad inferior durante el momento inicial del
     hero (script.js lo desvanece conforme cae la gota). */
  .stage__hero-brand{
    right:auto;left:50%;top:72%;
    width:min(82vw,360px);transform:translate(-50%,-50%);
  }

  /* Foto real del formato: mitad inferior, centrada. */
  .stage__float{left:50%;top:70%;max-width:64vw;max-height:36vh;}

  /* Texto de cada formato: arriba, bajo el nav. */
  .stage__copy[data-phase="format-1"],
  .stage__copy[data-phase="format-2"]{
    top:13%;transform:none;
  }
}
/* Pantallas bajas (iPhone SE y similares): el texto ocupa más fracción de la
   altura, así que la foto se achica y baja para no tocarlo. */
@media (max-width:900px) and (max-height:720px){
  .stage__float{top:76%;max-height:30vh;}
  .stage__hero-brand{top:77%;width:min(70vw,300px);}
}
@media (max-width:900px){
  .stage__scrim{background:linear-gradient(180deg, rgba(6,35,56,.78) 0%, rgba(6,35,56,.55) 38%, rgba(6,35,56,.15) 60%, transparent 78%);}
}

/* Fallback estático: sin WebGL o prefers-reduced-motion */
.stage.stage--static{height:auto;}
.stage.stage--static .stage__sticky{
  position:static;height:auto;flex-direction:column;gap:var(--space-5);
  padding:var(--space-6) var(--space-3);
}
.stage.stage--static .stage__overlay{position:static;display:block;}
.stage.stage--static .stage__overlay-inner{height:auto;}
.stage.stage--static .stage__copy{
  position:static;transform:none;opacity:1;pointer-events:auto;
  width:100%;max-width:640px;margin:0 auto var(--space-5);text-align:center;
}
.stage.stage--static .fallback-shape{margin:0 auto var(--space-3);}
.stage.stage--static .stage__fallback{position:static;flex-direction:column;gap:var(--space-2);}
.stage.stage--static .stage__progress{display:none;}

.stage__progress{
  position:absolute;right:var(--space-3);top:50%;transform:translateY(-50%);
  display:flex;flex-direction:column;gap:10px;z-index:5;
}
.stage__dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.3);transition:background .3s var(--ease), transform .3s var(--ease);}
.stage__dot.is-active{background:var(--teal-light);transform:scale(1.3);}
@media (max-width:720px){ .stage__progress{display:none;} }

/* ===== Dual grid ===== */
.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3);margin-top:var(--space-4);}
@media (max-width:720px){ .dual-grid{grid-template-columns:1fr;} }

/* ===== Nosotros — foto real de oficina/fachada ===== */
.nosotros-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3);margin-top:var(--space-4);}
.nosotros-grid img{border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);width:100%;height:auto;object-fit:cover;}
@media (max-width:720px){ .nosotros-grid{grid-template-columns:1fr;} }
.dual-card__inner{
  background:var(--white);border-radius:var(--radius-lg);padding:var(--space-4);
  box-shadow:var(--shadow-soft);height:100%;
}
.dual-card__icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:56px;height:56px;border-radius:16px;background:rgba(23,179,163,.1);color:var(--teal);
  margin-bottom:var(--space-2);
  transition:transform .3s var(--ease), background .3s var(--ease);
}
.dual-card__icon svg{width:28px;height:28px;}
.dual-card h3{
  font-size:1.3rem;font-weight:700;color:var(--navy);margin-bottom:8px;
  display:inline-block;transition:transform .35s var(--ease), text-shadow .35s var(--ease), letter-spacing .35s var(--ease);
}
.dual-card p{color:#4A6472;}
.dual-card__inner{transition:transform .35s var(--ease), box-shadow .35s var(--ease);}
.dual-card:hover .dual-card__inner{transform:translateY(-10px);}
.dual-card:hover .dual-card__icon{transform:scale(1.1) rotate(-4deg);background:rgba(23,179,163,.18);}
.dual-card:hover h3{transform:scale(1.1);letter-spacing:.01em;text-shadow:0 4px 22px rgba(23,179,163,.45);}

/* Flotan suavemente todo el tiempo — refuerza el tema de agua/flotación de la marca */
@keyframes cardFloat{0%,100%{transform:translateY(0);}50%{transform:translateY(-7px);}}
.dual-card, .tilt-card{animation:cardFloat 6s ease-in-out infinite;}
.dual-card:nth-child(2){animation-delay:.7s;}
.tilt-card:nth-child(2){animation-delay:.5s;}
.tilt-card:nth-child(3){animation-delay:1s;}
@media (prefers-reduced-motion: reduce){
  .dual-card, .tilt-card{animation:none;}
}

/* ===== Formatos (fijo) — fotografía real, complementa el stage 3D =====
   Peldaño 1-2: mucho espacio, sin efectos, la foto ocupa la mayor parte
   del bloque (04a M09 — museos: dejar "respirar" al objeto). */
.product-row{
  display:flex;align-items:center;gap:var(--space-5);
  margin-top:var(--space-5);
}
.product-row--reverse{flex-direction:row-reverse;}
.product-row__media{flex:1 1 40%;display:flex;justify-content:center;}
.product-row__media img{
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-soft);
  width:auto;height:auto;
  max-width:100%;max-height:440px;
  object-fit:contain;
}
.product-row__copy{flex:1 1 50%;}
.product-row__copy h3{font-size:1.5rem;font-weight:700;color:var(--navy);margin-bottom:10px;}
.product-row__copy p{color:#3A5566;font-size:1.05rem;}
.tag{
  display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--teal);background:rgba(23,179,163,.1);padding:5px 14px;border-radius:999px;margin-bottom:12px;
}
.product-row__note{margin-top:var(--space-4);color:#4A6472;font-size:.95rem;}
.product-row__note a{color:var(--teal);font-weight:700;text-decoration:underline;text-underline-offset:2px;}
@media (max-width:760px){
  .product-row, .product-row--reverse{flex-direction:column;gap:var(--space-3);margin-top:var(--space-4);}
  .product-row__media{flex:none;width:100%;}
  .product-row__media img{max-height:360px;}
  .product-row__copy{flex:none;}
}

/* ===== Sé distribuidor — bloque con prueba real (manos estrechándose) ===== */
.section--tint{background:linear-gradient(160deg, rgba(23,179,163,.06), rgba(11,59,92,.05));}
.distribuidor{display:flex;align-items:center;gap:var(--space-5);}
.distribuidor__media{flex:1 1 40%;}
.distribuidor__panel{
  display:flex;align-items:center;justify-content:center;
  aspect-ratio:380 / 314;border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);
  background:radial-gradient(circle at 30% 25%, rgba(111,227,212,.28), transparent 55%),linear-gradient(150deg, var(--navy) 0%, var(--navy-dark) 100%);
  color:var(--teal-light);
}
.distribuidor__panel{position:relative;overflow:hidden;}
.distribuidor__motor{
  position:relative;z-index:1;height:92%;width:auto;max-width:78%;object-fit:contain;
  margin-top:4%;filter:drop-shadow(0 18px 24px rgba(0,0,0,.45));
}
.distribuidor__badge{
  position:absolute;z-index:2;top:7%;left:7%;
  display:flex;align-items:center;justify-content:center;
  width:32%;aspect-ratio:1;border-radius:50%;
  background:rgba(111,227,212,.18);border:1px solid rgba(111,227,212,.55);
  color:var(--teal-light);backdrop-filter:blur(4px);
}
.distribuidor__icon{width:56%;height:auto;}
.distribuidor__copy{flex:1 1 55%;}
.distribuidor__list{margin:var(--space-2) 0 var(--space-3);}
.distribuidor__list li{
  position:relative;padding-left:26px;margin-bottom:10px;color:#3A5566;font-size:1rem;
}
.distribuidor__list li::before{
  content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:50%;background:var(--teal);
}
@media (max-width:760px){
  .distribuidor{flex-direction:column;gap:var(--space-3);}
  .distribuidor__media, .distribuidor__copy{flex:none;width:100%;}
}

/* ===== Guarantee ===== */
.guarantee-seal{
  display:inline-flex;width:80px;height:80px;color:var(--teal-light);margin-bottom:var(--space-2);
}

/* ===== Tilt cards (CSS 3D, proceso) ===== */
.tilt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-3);margin-top:var(--space-4);perspective:1200px;}
@media (max-width:900px){ .tilt-grid{grid-template-columns:1fr;} }
.tilt-card{transform-style:preserve-3d;}
.tilt-card__inner{
  background:var(--white);border-radius:var(--radius-lg);padding:var(--space-4);
  box-shadow:var(--shadow-soft);
  transform:rotateX(0deg) rotateY(0deg) translateZ(0);
  transition:transform .35s var(--ease), box-shadow .35s var(--ease);
  height:100%;
}
.tilt-card:hover .tilt-card__inner{
  transform:rotateX(6deg) rotateY(-6deg) translateZ(10px);
  box-shadow:0 30px 70px rgba(11,59,92,.22);
}
@media (prefers-reduced-motion: reduce){
  .tilt-card:hover .tilt-card__inner{transform:none;}
}
.tilt-card__num{
  display:inline-block;font-size:.85rem;font-weight:700;color:var(--teal);
  background:rgba(23,179,163,.1);padding:4px 12px;border-radius:999px;margin-bottom:var(--space-2);
}
.tilt-card h3{
  font-size:1.2rem;font-weight:700;color:var(--navy);margin-bottom:8px;
  display:inline-block;transition:transform .35s var(--ease), text-shadow .35s var(--ease), letter-spacing .35s var(--ease);
}
.tilt-card p{color:#4A6472;}
.tilt-card:hover h3{transform:scale(1.1);letter-spacing:.01em;text-shadow:0 4px 22px rgba(23,179,163,.45);}

/* ===== Accordion ===== */
.accordion__item{
  background:var(--white);border-radius:var(--radius-md);padding:var(--space-2) var(--space-3);
  margin-bottom:12px;box-shadow:0 8px 24px rgba(11,59,92,.08);
}
.accordion__item summary{
  cursor:pointer;font-weight:700;color:var(--navy);padding:8px 0;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.accordion__item summary::-webkit-details-marker{display:none;}
.accordion__q{
  display:inline-block;
  transition:transform .3s var(--ease), text-shadow .3s var(--ease), letter-spacing .3s var(--ease);
}
.accordion__item summary:hover .accordion__q{
  transform:scale(1.05);letter-spacing:.01em;text-shadow:0 3px 16px rgba(23,179,163,.4);
}
.accordion__item summary::after{
  content:"+";font-size:1.4rem;font-weight:400;color:var(--teal);transition:transform .25s var(--ease);
}
.accordion__item[open] summary::after{transform:rotate(45deg);}
.accordion__item p{padding:8px 0 4px;color:#4A6472;}

/* ===== CTA final ===== */
.cta-final{background:linear-gradient(160deg,var(--navy) 0%,var(--navy-dark) 100%);}

/* ===== Footer ===== */
.footer{background:var(--navy-dark);color:#CFE6EA;padding:var(--space-4) 0;}
.footer__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-2);}
.footer__brand{display:flex;flex-direction:column;gap:4px;font-weight:700;color:var(--white);}
.footer__logo{height:26px;width:auto;filter:brightness(0) invert(1);}
.footer__tagline{font-style:italic;font-size:.8rem;font-weight:600;color:var(--teal-light);}
.footer__meta{display:flex;flex-wrap:wrap;gap:var(--space-3);font-size:.9rem;}
.footer__meta a:hover{color:var(--teal-light);}
.footer__note{width:100%;margin-top:var(--space-2);font-size:.78rem;color:#6E92A0;}

/* ===== Back to top ===== */
.back-to-top{
  position:fixed;right:var(--space-3);bottom:var(--space-3);z-index:90;
  width:48px;height:48px;border-radius:50%;border:none;cursor:pointer;
  background:var(--navy);color:var(--white);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 26px rgba(11,59,92,.3);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .3s var(--ease), transform .3s var(--ease), background .25s var(--ease);
}
.back-to-top.is-visible{opacity:1;transform:none;pointer-events:auto;}
.back-to-top:hover{background:var(--teal);}
.back-to-top svg{width:20px;height:20px;}
@media (prefers-reduced-motion: reduce){ .back-to-top{transition:opacity .2s linear;} }