/* ============================================================
   AVICENA — Rediseño conceptual
   Paleta derivada de su marca real (bronce + aqua) y elevada.
   ============================================================ */

:root{
  /* Paleta celeste / petróleo (nombres heredados, valores nuevos) */
  --ink:        #122a30;   /* texto: petróleo casi negro, frío */
  --ink-soft:   #4d666c;   /* texto secundario gris-teal */
  --bronze:     #1c8794;   /* PRIMARIO: teal (antes bronce) */
  --bronze-700: #135f6a;   /* teal medio-oscuro */
  --bronze-900: #0a3942;   /* petróleo profundo (secciones oscuras) */
  --aqua:       #86d6e3;   /* celeste claro */
  --aqua-600:   #107381;   /* celeste/teal de acento (texto legible AA) */
  --aqua-900:   #093f48;   /* teal profundo */
  --glow:       #2fd2e8;   /* cian brillante — SOLO decorativo */
  --gold:       #c2901f;   /* ámbar legible — estrellas / rating */
  --sand:       #eaf4f6;   /* fondo de página, frío e icy */
  --ivory:      #f7fbfc;   /* fondo claro de tarjetas/secciones */
  --card:       #ffffff;
  --line:       rgba(28,135,148,.16);
  --line-strong:rgba(28,135,148,.30);

  --font-display:'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans:'Manrope', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --radius:22px;
  --radius-lg:30px;
  --shadow-sm:0 2px 10px rgba(10,57,66,.08);
  --shadow:0 18px 50px -22px rgba(10,57,66,.28);
  --shadow-lg:0 40px 90px -30px rgba(10,57,66,.38);
  --maxw:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  color:var(--ink);
  background:transparent;       /* el color base lo pone html; el body translúcido deja ver el ADN (z-index:-1) */
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
img,svg,iframe{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
em{font-style:italic}

.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(20px,5vw,40px)}

/* ---- Grain overlay ---- */
.grain{
  position:fixed;inset:0;z-index:50;pointer-events:none;opacity:.4;mix-blend-mode:multiply;
  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='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

/* ---- Reveal on scroll ---- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ============================================================
   Typography helpers
   ============================================================ */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;font-weight:600;
  color:var(--bronze-700);margin-bottom:18px;
}
.eyebrow--center{justify-content:center;color:var(--bronze-700)}
.eyebrow__line{width:28px;height:1px;background:var(--bronze);opacity:.55;display:inline-block}

.section-head{text-align:center;max-width:640px;margin:0 auto clamp(36px,5vw,56px)}
.section-title{
  font-family:var(--font-display);font-weight:400;line-height:1.05;
  font-size:clamp(2.1rem,5vw,3.4rem);letter-spacing:-.02em;
  font-optical-sizing:auto;
}
.section-title--left{text-align:left}
.section-sub{color:var(--ink-soft);font-size:1.06rem;margin-top:18px}
.section-sub--left{margin-left:0}
.grad{
  background:linear-gradient(100deg,var(--bronze),var(--aqua-600));
  -webkit-background-clip:text;background-clip:text;color:transparent;font-style:italic;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:600;font-size:.98rem;letter-spacing:.01em;
  padding:15px 26px;border-radius:100px;transition:.35s var(--ease);
  white-space:nowrap;
}
.btn svg{transition:transform .35s var(--ease)}
.btn--primary{background:var(--bronze-900);color:var(--ivory);box-shadow:var(--shadow)}
.btn--primary:hover{background:var(--bronze);transform:translateY(-2px)}
.btn--primary:hover svg{transform:translateX(4px)}
.btn--ghost{border:1.4px solid var(--line-strong);color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:var(--ivory);border-color:var(--ink)}
.btn--light{background:var(--ivory);color:var(--bronze-900)}
.btn--light:hover{transform:translateY(-2px);box-shadow:0 20px 40px -16px rgba(0,0,0,.35)}
.btn--small{padding:11px 20px;font-size:.9rem;background:var(--bronze-900);color:var(--ivory)}
.btn--small:hover{background:var(--bronze)}

/* ============================================================
   Topbar
   ============================================================ */
.topbar{background:var(--bronze-900);color:#cdebf0;font-size:.82rem}
.topbar__inner{display:flex;align-items:center;gap:14px;justify-content:center;flex-wrap:wrap;padding:9px 0}
.topbar__item{display:inline-flex;align-items:center;gap:8px;opacity:.92}
.topbar__sep{opacity:.4}
.dot{width:7px;height:7px;border-radius:50%;background:var(--aqua);box-shadow:0 0 0 4px rgba(126,190,197,.25)}
.topbar__cta{font-weight:600;color:#fff;border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:1px}
.topbar__cta:hover{border-color:#fff}

/* ============================================================
   Nav
   ============================================================ */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(247,251,252,.72);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:.4s var(--ease);
}
.nav.scrolled{box-shadow:var(--shadow-sm);border-bottom-color:var(--line);background:rgba(247,251,252,.92)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:14px}
.nav__right{display:flex;align-items:center;gap:16px}

.brand{display:inline-flex;align-items:center;gap:12px}
.brand__mark{color:var(--bronze);display:inline-flex}
.brand__type{display:flex;flex-direction:column;line-height:1}
.brand__name{font-family:var(--font-display);font-weight:500;font-size:1.32rem;letter-spacing:.16em}
.brand__tag{font-size:.62rem;letter-spacing:.28em;text-transform:uppercase;color:var(--bronze-700);margin-top:4px}

.nav__links{display:flex;align-items:center;gap:30px}
.nav__links a{font-size:.95rem;font-weight:500;color:var(--ink);position:relative;transition:.25s}
.nav__links a:not(.nav__cta)::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1.5px;background:var(--bronze);transition:.3s var(--ease)}
.nav__links a:not(.nav__cta):hover::after{width:100%}
.nav__cta{background:var(--bronze-900);color:var(--ivory)!important;padding:11px 22px;border-radius:100px;transition:.3s var(--ease)}
.nav__cta:hover{background:var(--bronze);transform:translateY(-1px)}

.nav__burger{display:none;flex-direction:column;gap:5px;padding:8px}
.nav__burger span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.3s var(--ease)}
.nav__burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav__burger.open span:nth-child(2){opacity:0}
.nav__burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============================================================
   Hero
   ============================================================ */
.hero{position:relative;overflow:hidden;padding:clamp(48px,7vw,86px) 0 clamp(60px,8vw,96px);background:linear-gradient(180deg,var(--ivory),var(--sand))}
.hero__bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;animation:float 14s ease-in-out infinite}
.blob--1{width:440px;height:440px;background:radial-gradient(circle,#bfeaf1,transparent 70%);top:-80px;right:-60px}
.blob--2{width:380px;height:380px;background:radial-gradient(circle,#9fe0ee,transparent 70%);bottom:-120px;left:-80px;animation-delay:-4s}
.blob--3{display:none}
@keyframes float{0%,100%{transform:translateY(0) translateX(0)}50%{transform:translateY(-26px) translateX(16px)}}

.hero__grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(30px,5vw,60px);align-items:center}
.hero__title{font-family:var(--font-display);font-weight:380;font-size:clamp(2.5rem,5.6vw,4.2rem);line-height:1.02;letter-spacing:-.025em;font-optical-sizing:auto}
.hero__title em{color:var(--bronze);font-size:.84em;display:inline-block}
.hero__lead{font-size:1.12rem;color:var(--ink-soft);margin-top:24px;max-width:30em}
.hero__lead strong{color:var(--ink);font-weight:600}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}

.hero__trust{display:flex;align-items:center;gap:22px;margin-top:42px;flex-wrap:wrap}
.hero__trust div:not(.hero__trust-sep){display:flex;flex-direction:column}
.hero__trust strong{font-family:var(--font-display);font-size:1.7rem;font-weight:500;color:var(--bronze-900);line-height:1}
.hero__trust span{font-size:.82rem;color:var(--ink-soft);margin-top:4px}
.hero__trust-sep{width:1px;height:34px;background:var(--line-strong)}

/* Hero visual */
.hero__visual{position:relative}
.ph{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:
  radial-gradient(120% 120% at 20% 10%,rgba(126,190,197,.55),transparent 55%),
  linear-gradient(150deg,var(--bronze) 0%,var(--bronze-700) 45%,var(--aqua-900) 130%);
  box-shadow:var(--shadow-lg)}
.ph::after{content:"";position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40'%3E%3Cpath d='M0 20h40M20 0v40' stroke='%23ffffff' stroke-opacity='.05' stroke-width='1'/%3E%3C/svg%3E")}
.ph--hero{aspect-ratio:4/5}

.hero__card{position:absolute;background:var(--card);border-radius:18px;box-shadow:var(--shadow);padding:16px 18px;border:1px solid var(--line)}
.hero__card--rating{left:-26px;bottom:48px;max-width:212px;animation:float 9s ease-in-out infinite}
.hero__card--rating .stars{color:var(--gold);letter-spacing:2px;font-size:.9rem}
.hero__card--rating p{font-family:var(--font-display);font-size:1rem;line-height:1.3;margin:6px 0;color:var(--ink)}
.hero__card--rating span{font-size:.74rem;color:var(--ink-soft)}
.hero__card--badge{right:-18px;top:34px;text-align:center;animation:float 11s ease-in-out infinite;animation-delay:-3s}
.hero__card-num{display:block;font-family:var(--font-display);font-size:1.8rem;color:var(--aqua-600);font-weight:600;line-height:1}
.hero__card-lbl{font-size:.72rem;color:var(--ink-soft);max-width:120px;display:block;margin-top:4px}

.hero__scroll{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);z-index:2;width:26px;height:42px;border:1.5px solid var(--line-strong);border-radius:100px;display:flex;justify-content:center;padding-top:8px}
.hero__scroll span{width:4px;height:8px;border-radius:4px;background:var(--bronze);animation:scroll 1.8s ease-in-out infinite}
@keyframes scroll{0%{opacity:0;transform:translateY(-4px)}40%{opacity:1}80%,100%{opacity:0;transform:translateY(10px)}}

/* ============================================================
   Confianza / counters
   ============================================================ */
.confianza{background:var(--bronze-900);color:var(--ivory);padding:clamp(34px,5vw,52px) 0}
.confianza__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{text-align:center;position:relative}
.stat:not(:last-child)::after{content:"";position:absolute;right:-10px;top:14%;height:72%;width:1px;background:rgba(255,255,255,.14)}
.stat__num{font-family:var(--font-display);font-size:clamp(2.1rem,4vw,3rem);font-weight:500;color:#fff;line-height:1;display:block}
.stat__lbl{font-size:.86rem;color:#bbe0e6;margin-top:10px;display:block}

/* ============================================================
   Asesor (signature)
   ============================================================ */
.asesor{padding:clamp(64px,9vw,110px) 0;background:
  radial-gradient(80% 60% at 50% 0%,rgba(126,190,197,.16),transparent 70%),var(--sand)}

/* ============================================================
   Tratamientos
   ============================================================ */
.trat{padding:clamp(64px,9vw,110px) 0;background:var(--ivory)}
.tabs{display:flex;gap:8px;justify-content:center;background:var(--sand);border:1px solid var(--line);
  border-radius:100px;padding:6px;width:max-content;margin:0 auto clamp(34px,5vw,48px)}
.tab{padding:11px 30px;border-radius:100px;font-weight:600;font-size:.96rem;color:var(--ink-soft);transition:.3s var(--ease)}
.tab.is-active{background:var(--bronze-900);color:var(--ivory);box-shadow:var(--shadow-sm)}

.trat__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.trat__grid.is-hidden{display:none}
.tcard{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--card);border:1px solid var(--line);
  padding:24px 22px 22px;transition:.4s var(--ease);min-height:188px;display:flex;flex-direction:column}
.tcard::before{content:"";position:absolute;inset:0;background:linear-gradient(160deg,var(--bronze),var(--aqua-900));opacity:0;transition:.4s var(--ease);z-index:0}
.tcard>*{position:relative;z-index:1;transition:.4s var(--ease)}
.tcard__ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--sand);color:var(--bronze);margin-bottom:16px;transition:.4s var(--ease)}
.tcard h3{font-family:var(--font-display);font-size:1.22rem;font-weight:500;margin-bottom:8px}
.tcard p{font-size:.88rem;color:var(--ink-soft);flex:1}
.tcard__tag{display:inline-block;margin-top:14px;font-size:.72rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--aqua-600)}
.tcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.tcard:hover::before{opacity:1}
.tcard:hover h3,.tcard:hover p{color:#fff}
.tcard:hover p{color:rgba(255,255,255,.85)}
.tcard:hover .tcard__tag{color:#fff}
.tcard:hover .tcard__ico{background:rgba(255,255,255,.18);color:#fff}

/* ============================================================
   Tecnología
   ============================================================ */
.tech{padding:clamp(64px,9vw,100px) 0;background:var(--sand);overflow:hidden}
.marquee{margin:clamp(24px,4vw,40px) 0;border-block:1px solid var(--line);padding:22px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee__track{display:flex;align-items:center;gap:26px;width:max-content;animation:marquee 28s linear infinite}
.marquee__track span{font-family:var(--font-display);font-size:clamp(1.6rem,3.4vw,2.6rem);font-weight:400;color:var(--bronze-900);white-space:nowrap}
.marquee__track i{color:var(--aqua-600);font-style:normal;font-size:1.4rem}
@keyframes marquee{to{transform:translateX(-50%)}}

.tech__cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.tech__card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:.4s var(--ease)}
.tech__card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.tech__tag{display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--aqua-600);background:rgba(126,190,197,.16);padding:5px 12px;border-radius:100px;margin-bottom:16px}
.tech__card h3{font-family:var(--font-display);font-size:1.6rem;font-weight:500;margin-bottom:10px}
.tech__card p{font-size:.92rem;color:var(--ink-soft)}

/* ============================================================
   Resultados / Before-After
   ============================================================ */
.resultados{padding:clamp(64px,9vw,110px) 0;background:var(--ivory)}
.resultados__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,5vw,64px);align-items:center}
.ticklist{list-style:none;margin:26px 0 30px;display:grid;gap:12px}
.ticklist li{position:relative;padding-left:32px;color:var(--ink);font-weight:500}
.ticklist li::before{content:"";position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;
  background:var(--aqua-600);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 13l4 4 10-10' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/72% no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 13l4 4 10-10' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/72% no-repeat;background-color:var(--aqua-600)}

.ba{position:relative;aspect-ratio:4/5;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);user-select:none;touch-action:none}
.ba__after,.ba__before{position:absolute;inset:0}
.ba__after{background:
  radial-gradient(120% 90% at 80% 20%,rgba(134,214,227,.6),transparent 60%),
  linear-gradient(150deg,#3aa2af,#176b77 60%,var(--aqua-900))}
.ba__before{background:
  linear-gradient(150deg,#1d525a,#0e3138 70%,#15535b);
  clip-path:inset(0 50% 0 0)}
.ba__tag{position:absolute;top:16px;font-size:.74rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#fff;background:rgba(0,0,0,.28);padding:6px 13px;border-radius:100px;backdrop-filter:blur(4px)}
.ba__after .ba__tag{right:16px}
.ba__tag--dark{left:16px;background:rgba(0,0,0,.36)}
.ba__handle{position:absolute;top:0;bottom:0;left:50%;width:2px;background:#fff;transform:translateX(-50%);pointer-events:none;box-shadow:0 0 18px rgba(0,0,0,.3)}
.ba__handle span{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:46px;height:46px;border-radius:50%;background:#fff;box-shadow:var(--shadow);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 7l-4 5 4 5M15 7l4 5-4 5' fill='none' stroke='%23137e8b' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center;background-size:62%}
.ba__range{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.ba__note{font-size:.78rem;color:var(--ink-soft);text-align:center;margin-top:14px;opacity:.85}

/* ============================================================
   Founder
   ============================================================ */
.founder{padding:clamp(64px,9vw,110px) 0;background:var(--sand)}
.founder__grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(34px,5vw,64px);align-items:center}
.ph--founder{aspect-ratio:4/5;max-width:420px}
.founder__role{color:var(--aqua-600);font-weight:600;margin:6px 0 18px}
.founder__bio{color:var(--ink-soft);font-size:1.05rem;max-width:34em}
.founder__sign{font-family:var(--font-display);font-style:italic;font-size:2.2rem;color:var(--bronze);margin:24px 0 22px;font-weight:400}
.founder__creds{display:flex;gap:10px;flex-wrap:wrap}
.founder__creds span{font-size:.82rem;font-weight:500;border:1px solid var(--line-strong);border-radius:100px;padding:8px 16px;color:var(--bronze-700)}

/* ============================================================
   Testimonios
   ============================================================ */
.testi{padding:clamp(64px,9vw,100px) 0;background:var(--ivory);overflow:hidden}
.testi__viewport{overflow:hidden}
.testi__track{display:flex;transition:transform .6s var(--ease)}
.testi__slide{flex:0 0 100%;padding:6px}
.tquote{max-width:760px;margin:0 auto;text-align:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(30px,5vw,54px);box-shadow:var(--shadow-sm)}
.tquote .stars{color:var(--gold);letter-spacing:3px;margin-bottom:18px}
.tquote blockquote{font-family:var(--font-display);font-size:clamp(1.2rem,2.6vw,1.7rem);line-height:1.4;font-weight:400;color:var(--ink)}
.tquote__who{display:flex;align-items:center;gap:12px;justify-content:center;margin-top:24px}
.tquote__av{width:44px;height:44px;border-radius:50%;background:linear-gradient(140deg,var(--bronze),var(--aqua-600));display:grid;place-items:center;color:#fff;font-weight:600;font-family:var(--font-display)}
.tquote__name{font-weight:600;text-align:left}
.tquote__name span{display:block;font-weight:400;font-size:.82rem;color:var(--ink-soft)}
.testi__dots{display:flex;gap:8px;justify-content:center;margin-top:28px}
.testi__dot{width:9px;height:9px;border-radius:50%;background:var(--line-strong);transition:.3s;cursor:pointer}
.testi__dot.is-active{background:var(--bronze);width:26px;border-radius:100px}

/* ============================================================
   Sedes
   ============================================================ */
.sedes{padding:clamp(64px,9vw,110px) 0;background:var(--sand)}
.sedes__grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.sede{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:.4s var(--ease)}
.sede:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.sede__map{aspect-ratio:16/10;background:var(--sand)}
.sede__map iframe{width:100%;height:100%;border:0;filter:grayscale(.2) contrast(.95)}
.sede__body{padding:26px 28px 30px}
.sede__body h3{font-family:var(--font-display);font-size:1.5rem;font-weight:500;margin-bottom:6px}
.sede__addr{color:var(--ink-soft);margin-bottom:16px}
.sede__meta{list-style:none;display:flex;gap:24px;margin-bottom:22px;flex-wrap:wrap}
.sede__meta li{font-size:.9rem;color:var(--ink-soft)}
.sede__meta strong{display:block;color:var(--ink);font-family:var(--font-display);font-weight:500;font-size:.96rem}

/* ============================================================
   CTA band
   ============================================================ */
.cta{padding:clamp(20px,4vw,40px) 0}
.cta__inner{background:
  radial-gradient(90% 140% at 90% 10%,rgba(126,190,197,.4),transparent 55%),
  linear-gradient(120deg,var(--bronze-900),var(--bronze-700));
  color:var(--ivory);border-radius:var(--radius-lg);text-align:center;padding:clamp(44px,7vw,80px) 24px;position:relative;overflow:hidden}
.cta__inner h2{font-family:var(--font-display);font-weight:400;font-size:clamp(1.8rem,4vw,3rem);line-height:1.1;letter-spacing:-.02em}
.cta__inner p{color:#c5e6ec;margin:16px auto 30px;max-width:34em}

/* ============================================================
   Footer
   ============================================================ */
.footer{background:var(--bronze-900);color:#a7cdd3;padding:clamp(54px,7vw,80px) 0 30px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:46px;border-bottom:1px solid rgba(255,255,255,.1)}
.brand--footer .brand__name{color:#fff}
.brand--footer .brand__mark{color:var(--aqua)}
.brand--footer .brand__tag{color:#84b3bb}
.footer__brand p{margin:18px 0;font-size:.92rem;max-width:26em}
.footer__social{display:flex;gap:10px}
.footer__social a{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.18);display:grid;place-items:center;color:#cdebf0;transition:.3s var(--ease)}
.footer__social a:hover{background:var(--aqua);color:var(--bronze-900);border-color:var(--aqua);transform:translateY(-2px)}
.footer__col h4{color:#fff;font-family:var(--font-display);font-weight:500;font-size:1.05rem;margin-bottom:16px}
.footer__col a{display:block;font-size:.9rem;margin-bottom:11px;color:#a7cdd3;transition:.25s}
.footer__col a:hover{color:#fff;padding-left:4px}
.footer__libro{font-weight:600;color:#cdebf0!important;margin-top:6px}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;padding-top:24px;font-size:.8rem;color:#6f9aa2}

/* ============================================================
   Floating WhatsApp
   ============================================================ */
.fab{position:fixed;left:22px;bottom:22px;z-index:200;width:58px;height:58px;border-radius:50%;
  background:#25d366;color:#fff;display:grid;place-items:center;box-shadow:0 14px 30px -8px rgba(37,211,102,.6);transition:.3s var(--ease);animation:pulse 2.6s ease-in-out infinite}
.fab:hover{transform:scale(1.08)}
@keyframes pulse{0%,100%{box-shadow:0 14px 30px -8px rgba(37,211,102,.6),0 0 0 0 rgba(37,211,102,.4)}50%{box-shadow:0 14px 30px -8px rgba(37,211,102,.6),0 0 0 14px rgba(37,211,102,0)}}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:1024px){
  .trat__grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1024px){
  .nav__burger{display:flex}
  .nav__links{position:fixed;inset:0 0 0 auto;width:min(82vw,330px);background:var(--ivory);
    flex-direction:column;align-items:flex-start;justify-content:center;gap:26px;padding:40px;
    transform:translateX(100%);transition:transform .45s var(--ease);box-shadow:var(--shadow-lg);z-index:99}
  .nav__links.open{transform:none}
  .nav__links a{font-size:1.15rem}
}
@media (max-width:880px){
  .hero__grid{grid-template-columns:1fr;gap:48px}
  .hero__visual{max-width:440px;margin-inline:auto;width:100%}
  .confianza__grid{grid-template-columns:1fr 1fr;gap:30px}
  .stat:not(:last-child)::after{display:none}
  .resultados__grid,.founder__grid,.sedes__grid{grid-template-columns:1fr}
  .founder__grid{gap:34px}
  .ph--founder{max-width:none}
  .tech__cards{grid-template-columns:1fr}
}
@media (max-width:560px){
  .topbar__inner{font-size:.74rem;gap:8px}
  .topbar__sep,.topbar__item:nth-child(3){display:none}
  .hero__card--rating{left:0;bottom:14px;max-width:188px}
  .hero__card--badge{right:0;top:14px}
  .hero-hera{left:0;top:-12px;padding:7px 14px 7px 7px}
  .trat__grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__brand{grid-column:1/-1}
  .btn{width:100%;justify-content:center}
  .hero__actions{flex-direction:column}
}

/* ============================================================
   v2 — Movimiento, chat, feed, imágenes
   ============================================================ */

/* ---- Scroll progress ---- */
.progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:9998;background:linear-gradient(90deg,var(--bronze),var(--glow));box-shadow:0 0 12px rgba(47,210,232,.55);transition:width .08s linear}

/* ---- Fondo: hélice de ADN (canvas) — detrás de todo ---- */
.dna-bg{position:fixed;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}

/* ---- Focus visible (accesibilidad) ---- */
:focus-visible{outline:2.5px solid var(--aqua-600);outline-offset:3px;border-radius:6px}
.btn:focus-visible,.nav__cta:focus-visible,.chat__send:focus-visible,.chat__chip:focus-visible{outline-offset:4px}

/* ---- Reveal variants + stagger ---- */
.reveal--left{transform:translateX(-46px)}
.reveal--right{transform:translateX(46px)}
.reveal--left.in,.reveal--right.in{transform:none}
.s-reveal{opacity:0;transform:translateY(28px) scale(.97);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.s-reveal.in{opacity:1;transform:none}
[data-parallax]{will-change:transform}

@media (prefers-reduced-motion:reduce){
  .reveal--left,.reveal--right,.s-reveal{opacity:1!important;transform:none!important;transition:none}
  .progress{display:none}
  [data-parallax]{transform:none!important}
  .blob,.marquee__track,.fab,.chat__presence i,.chat__online{animation:none!important}
}

/* ---- Image placeholders now hold photos ---- */
.ph__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.ph__shade{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,transparent 45%,rgba(9,40,46,.34))}
.ph--hero .ph__shade{background:linear-gradient(155deg,rgba(126,190,197,.14),transparent 38%,rgba(9,40,46,.30))}
.ph__caption{position:absolute;left:16px;bottom:16px;z-index:2;color:#fff;font-size:.8rem;font-weight:500;background:rgba(0,0,0,.30);backdrop-filter:blur(4px);padding:8px 14px;border-radius:100px;border:1px solid rgba(255,255,255,.22)}

/* Before/After photos */
.ba__after img,.ba__before img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.ba__before img{filter:grayscale(.6) brightness(.82) contrast(.97)}
.ba__tag{z-index:2}

/* ============================================================
   Asesor (chat)
   ============================================================ */
.asesor__grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:clamp(30px,5vw,60px);align-items:center}
.asesor__feats{list-style:none;margin:24px 0 16px;display:grid;gap:13px}
.asesor__feats li{display:flex;align-items:center;gap:12px;font-weight:500;color:var(--ink)}
.asesor__featico{flex:0 0 auto;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:rgba(126,190,197,.2);color:var(--aqua-600)}

.chat{position:relative;background:var(--card);border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow-lg);overflow:hidden;display:flex;flex-direction:column;height:560px;max-height:80vh}
.chat__header{display:flex;align-items:center;gap:12px;padding:15px 18px;background:linear-gradient(120deg,var(--bronze-900),var(--bronze-700));color:#fff}
.chat__avatar{position:relative;flex:0 0 auto;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(140deg,var(--aqua),var(--aqua-600));color:#fff}
.chat__online{position:absolute;right:-1px;bottom:-1px;width:13px;height:13px;border-radius:50%;background:#41d57f;border:2.5px solid var(--bronze-900)}
.chat__id{flex:1;line-height:1.2;min-width:0}
.chat__id strong{font-family:var(--font-display);font-weight:500;font-size:1.02rem;display:block}
.chat__presence{font-size:.75rem;color:#c5e6ec;display:flex;align-items:center;gap:6px;margin-top:3px}
.chat__presence i{width:7px;height:7px;border-radius:50%;background:#41d57f;animation:pulseDot 2s infinite}
@keyframes pulseDot{0%,100%{box-shadow:0 0 0 0 rgba(65,213,127,.5)}50%{box-shadow:0 0 0 6px rgba(65,213,127,0)}}
.chat__logo{font-family:var(--font-display);letter-spacing:.16em;font-size:.78rem;opacity:.5}

.chat__body{flex:1;overflow-y:auto;padding:20px 18px;display:flex;flex-direction:column;gap:11px;background:radial-gradient(60% 40% at 100% 0,rgba(126,190,197,.08),transparent 60%),var(--ivory)}
.chat__body::-webkit-scrollbar{width:7px}
.chat__body::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:10px}

.msg{max-width:84%;padding:12px 15px;border-radius:18px;font-size:.92rem;line-height:1.5;animation:msgIn .4s var(--ease);box-shadow:var(--shadow-sm);word-wrap:break-word}
@keyframes msgIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.msg strong{font-weight:700}
.msg--bot{align-self:flex-start;background:#fff;color:var(--ink);border:1px solid var(--line);border-bottom-left-radius:6px}
.msg--user{align-self:flex-end;background:linear-gradient(135deg,var(--bronze),var(--bronze-700));color:#fff;border-bottom-right-radius:6px}
.msg__cta{display:inline-flex;align-items:center;gap:8px;margin-top:4px;background:#25d366;color:#fff;font-weight:600;font-size:.86rem;padding:10px 16px;border-radius:100px;transition:.3s var(--ease)}
.msg__cta:hover{filter:brightness(1.06);transform:translateY(-1px)}

.typing{align-self:flex-start;display:flex;gap:4px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:18px;border-bottom-left-radius:6px;width:max-content;animation:msgIn .3s var(--ease)}
.typing span{width:7px;height:7px;border-radius:50%;background:var(--bronze);opacity:.5;animation:typing 1.2s infinite}
.typing span:nth-child(2){animation-delay:.18s}
.typing span:nth-child(3){animation-delay:.36s}
@keyframes typing{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-5px);opacity:1}}

.chat__quick{display:flex;gap:8px;padding:10px 16px 2px;flex-wrap:wrap;background:var(--ivory)}
.chat__chip{font-size:.82rem;font-weight:600;color:var(--bronze-700);border:1.3px solid var(--line-strong);background:#fff;padding:9px 15px;border-radius:100px;transition:.25s var(--ease);cursor:pointer;animation:msgIn .3s var(--ease)}
.chat__chip:hover{background:var(--bronze-900);color:#fff;border-color:var(--bronze-900);transform:translateY(-1px)}

.chat__form{display:flex;gap:10px;padding:14px 16px;border-top:1px solid var(--line);background:#fff;align-items:center}
.chat__text{flex:1;border:1.4px solid var(--line-strong);border-radius:100px;padding:12px 18px;font-family:inherit;font-size:.92rem;color:var(--ink);background:var(--ivory);transition:.25s}
.chat__text:focus{outline:none;border-color:var(--aqua-600);background:#fff;box-shadow:0 0 0 4px rgba(126,190,197,.18)}
.chat__send{flex:0 0 auto;width:46px;height:46px;border-radius:50%;background:var(--bronze-900);color:#fff;display:grid;place-items:center;transition:.3s var(--ease)}
.chat__send:hover{background:var(--bronze);transform:scale(1.06) rotate(8deg)}
.chat__send:active{transform:scale(.94)}
.chat__disclaim{font-size:.78rem;color:var(--ink-soft);text-align:center;margin-top:14px;opacity:.85}
.chat__disclaim--intro{text-align:left;margin-top:2px}

/* ============================================================
   Feed social (Comunidad)
   ============================================================ */
.feed{padding:clamp(64px,9vw,110px) 0;background:var(--sand)}
.feed__top{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:clamp(26px,4vw,42px)}
.feed__follow{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:100px;padding:8px 20px 8px 8px;box-shadow:var(--shadow-sm);transition:.3s var(--ease)}
.feed__follow:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.feed__ig{flex:0 0 auto;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#f9a826,#e1306c 52%,#833ab4)}
.feed__handle{display:flex;flex-direction:column;font-family:var(--font-display);font-weight:500;font-size:1.04rem;line-height:1.1;color:var(--ink)}
.feed__handle small{font-family:var(--font-sans);font-weight:600;font-size:.76rem;color:var(--aqua-600);margin-top:3px}

.feed__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.feed__card{position:relative;aspect-ratio:1;border-radius:20px;overflow:hidden;cursor:pointer;box-shadow:var(--shadow-sm);background:var(--bronze-700)}
.feed__card img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.feed__card:hover img{transform:scale(1.08)}
.feed__type{position:absolute;top:12px;right:12px;z-index:2;color:#fff;filter:drop-shadow(0 1px 4px rgba(0,0,0,.55))}
.feed__bar{position:absolute;left:0;right:0;bottom:0;z-index:2;display:flex;gap:16px;margin:0;padding:24px 14px 12px;color:#fff;font-size:.85rem;font-weight:700;background:linear-gradient(transparent,rgba(0,0,0,.62));transition:opacity .35s}
.feed__bar span{display:inline-flex;align-items:center;gap:5px}
.feed__card:hover .feed__bar{opacity:0}
.feed__over{position:absolute;inset:0;z-index:3;display:flex;align-items:center;justify-content:center;gap:20px;background:rgba(7,33,40,.58);backdrop-filter:blur(1px);opacity:0;transition:opacity .35s var(--ease)}
.feed__card:hover .feed__over{opacity:1}
.feed__over span{display:inline-flex;flex-direction:column;align-items:center;gap:6px;color:#fff;font-weight:700;font-size:.92rem}
.feed__cta{text-align:center;margin-top:32px}

/* ---- Press feedback on cards ---- */
.tcard:active,.tech__card:active,.sede:active{transform:translateY(-2px) scale(.995)}

/* ---- Tab content crossfade ---- */
.trat__grid:not(.is-hidden){animation:fadeSwap .45s var(--ease)}
@keyframes fadeSwap{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ============================================================
   v2 Responsive
   ============================================================ */
@media (max-width:880px){
  .asesor__grid{grid-template-columns:1fr;gap:30px}
  .chat{height:520px}
}
@media (max-width:560px){
  .feed__grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .feed__over{gap:14px}
  .feed__top{align-items:flex-start}
  .chat{height:480px;max-height:74vh}
  .msg{max-width:90%}
  .reveal--left,.reveal--right{transform:translateY(28px)}
}

/* ============================================================
   v3 — Acentos celeste / vanguardia
   ============================================================ */
/* Hovers genéricos: teal sobrio (el cian --glow queda reservado a la IA) */
.btn--primary:hover{box-shadow:0 16px 38px -16px rgba(16,115,129,.5),var(--shadow)}
.nav__cta:hover{box-shadow:0 10px 24px -10px rgba(16,115,129,.55)}
.tcard:hover,.tech__card:hover{box-shadow:var(--shadow-lg),0 0 0 1px rgba(16,115,129,.2)}
.feed__card:hover{box-shadow:0 22px 50px -18px rgba(19,126,139,.55)}

/* Línea celeste superior del chat (señal de IA) */
.chat::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;z-index:5;
  background:linear-gradient(90deg,var(--aqua-600),var(--glow) 50%,var(--aqua))}

/* Glow del avatar de Hera */
.chat__avatar{box-shadow:0 0 0 4px rgba(134,214,227,.25),0 6px 16px -6px rgba(47,210,232,.6)}

/* Acento celeste en el icono de los tratamientos al hacer hover */
.tcard:hover .tcard__ico{box-shadow:0 0 0 1px rgba(255,255,255,.35)}

/* Estrellas: pop celeste en el avatar del testimonio */
.tquote__av{box-shadow:0 6px 16px -6px rgba(19,126,139,.55)}

/* ============================================================
   v4 — Hero cinemático · Toggle tema · Launcher Hera · Dark
   ============================================================ */

/* ---- Hero: aurora + grid de luz ---- */
.aurora{position:absolute;inset:-30% -18%;pointer-events:none;opacity:.5;filter:blur(54px);
  background:conic-gradient(from 0deg at 58% 42%,transparent,rgba(47,210,232,.16),transparent 30%,rgba(134,214,227,.14),transparent 60%,rgba(47,210,232,.1),transparent 85%);
  animation:spin 60s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.hero__grid-lines{position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(28,135,148,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(28,135,148,.05) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(circle at 52% 26%,#000,transparent 68%);mask-image:radial-gradient(circle at 52% 26%,#000,transparent 68%)}
.hero__spot{position:absolute;inset:0;pointer-events:none;z-index:0;opacity:0;transition:opacity .45s var(--ease);
  background:radial-gradient(360px circle at var(--mx,50%) var(--my,30%),rgba(47,210,232,.18),transparent 62%)}

/* ---- Hero: chip "Hera" en vivo (protagonista IA) ---- */
.hero-hera{position:absolute;top:-16px;left:-14px;z-index:4;display:inline-flex;align-items:center;gap:10px;
  padding:8px 18px 8px 8px;border-radius:100px;background:var(--card);border:1px solid rgba(47,210,232,.45);
  box-shadow:var(--shadow),0 0 24px -6px rgba(47,210,232,.6);cursor:pointer;
  animation:float 10s ease-in-out infinite;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.hero-hera:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg),0 0 30px -4px rgba(47,210,232,.85)}
.hero-hera__ava{position:relative;flex:0 0 auto;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  color:#fff;background:linear-gradient(140deg,var(--glow),var(--aqua-600))}
.hero-hera__txt{display:flex;flex-direction:column;line-height:1.15;text-align:left}
.hero-hera__txt strong{font-family:var(--font-display);font-weight:600;font-size:.92rem;color:var(--ink)}
.hero-hera__status{font-size:.74rem;color:var(--aqua-600);transition:opacity .4s var(--ease);white-space:nowrap}
.hero-hera__live{flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:#41d57f;animation:pulseDot 2s infinite}

/* ---- Hero: revelado por líneas + entrada escalonada ---- */
.hero__title .line{display:block;overflow:hidden;padding-bottom:.18em;margin-bottom:-.14em}
.hero__title .line>span{display:block;transform:translateY(125%);animation:lineUp .95s var(--ease) forwards}
.hero__title .line:nth-child(1)>span{animation-delay:.10s}
.hero__title .line:nth-child(2)>span{animation-delay:.24s}
.hero__title .line:nth-child(3)>span{animation-delay:.38s}
@keyframes lineUp{to{transform:none}}
.hero__copy .eyebrow,.hero__lead,.hero__actions,.hero__trust{opacity:0;animation:heroFade .8s var(--ease) forwards}
.hero__copy .eyebrow{animation-delay:.05s}
.hero__lead{animation-delay:.52s}
.hero__actions{animation-delay:.64s}
.hero__trust{animation-delay:.76s}
@keyframes heroFade{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

/* ---- Theme toggle ---- */
.theme-toggle{width:42px;height:42px;border-radius:50%;border:1.4px solid var(--line-strong);
  color:var(--bronze-700);background:transparent;display:grid;place-items:center;transition:.3s var(--ease)}
.theme-toggle:hover{background:var(--bronze-900);color:#fff;border-color:var(--bronze-900);transform:translateY(-1px)}
.theme-toggle .ico-sun{display:none}
html[data-theme="dark"] .theme-toggle .ico-sun{display:block}
html[data-theme="dark"] .theme-toggle .ico-moon{display:none}

/* ---- Hera: launcher flotante ---- */
.hera-fab{position:fixed;right:24px;bottom:90px;z-index:210;display:inline-flex;align-items:center;gap:11px;
  padding:9px 20px 9px 9px;border-radius:100px;background:var(--card);border:1px solid var(--line);
  box-shadow:var(--shadow);color:var(--ink);font-weight:600;font-size:.92rem;cursor:pointer;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),opacity .3s;animation:heraPop .6s var(--ease) both}
.hera-fab:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg),0 0 0 1px rgba(47,210,232,.35)}
.hera-fab__ava{position:relative;flex:0 0 auto;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  color:#fff;background:linear-gradient(140deg,var(--aqua),var(--aqua-600));box-shadow:0 0 0 4px rgba(134,214,227,.22)}
.hera-fab__ava::after{content:"";position:absolute;inset:0;border-radius:50%;animation:heraPulse 2.4s infinite}
@keyframes heraPulse{0%{box-shadow:0 0 0 0 rgba(47,210,232,.5)}70%,100%{box-shadow:0 0 0 13px rgba(47,210,232,0)}}
.hera-fab__txt strong{color:var(--bronze)}
@keyframes heraPop{from{opacity:0;transform:translateY(22px) scale(.9)}to{opacity:1;transform:none}}

/* ---- Hera: panel emergente ---- */
.hera-panel{position:fixed;right:24px;bottom:24px;z-index:240;
  width:min(382px,calc(100vw - 32px));height:min(566px,80vh);
  opacity:0;transform:translateY(26px) scale(.96);transform-origin:bottom right;pointer-events:none;
  transition:opacity .35s var(--ease),transform .38s var(--ease)}
.hera-panel.open{opacity:1;transform:none;pointer-events:auto}
.chat--float{height:100%;max-height:none}
.hera-close{flex:0 0 auto;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:#fff;
  background:rgba(255,255,255,.16);transition:.25s var(--ease)}
.hera-close:hover{background:rgba(255,255,255,.30);transform:rotate(90deg)}
body.hera-open .hera-fab{opacity:0;transform:scale(.8);pointer-events:none;visibility:hidden}
@media (max-width:560px){ body.hera-open .fab{opacity:0;pointer-events:none;visibility:hidden} }

@media (max-width:560px){
  .hera-fab{padding:0;width:56px;height:56px;justify-content:center;bottom:88px;right:18px}
  .hera-fab__txt{display:none}
  .hera-fab__ava{width:54px;height:54px}
  .hera-panel{right:12px;left:12px;bottom:12px;width:auto;height:80vh}
}

/* ============================================================
   v4 — Modo oscuro "noche petróleo"
   ============================================================ */
html[data-theme="dark"]{
  --ink:#e8f4f6;
  --ink-soft:#9ec1c8;
  --bronze:#43b6c4;
  --bronze-700:#2c9aa8;
  --bronze-900:#07212a;
  --aqua:#8fdcea;
  --aqua-600:#62d0e0;
  --aqua-900:#0a2e36;
  --glow:#37d6ec;
  --sand:#07191f;
  --ivory:#0b242c;
  --card:#102f38;
  --line:rgba(98,208,224,.16);
  --line-strong:rgba(98,208,224,.30);
  --shadow-sm:0 2px 10px rgba(0,0,0,.45);
  --shadow:0 18px 50px -22px rgba(0,0,0,.6);
  --shadow-lg:0 40px 90px -30px rgba(0,0,0,.72);
}
html[data-theme="dark"] body{background:transparent}
html[data-theme="dark"] .grain{opacity:.2;mix-blend-mode:overlay}
html[data-theme="dark"] .nav{background:rgba(7,21,27,.72)}
html[data-theme="dark"] .nav.scrolled{background:rgba(7,21,27,.92)}
/* botones/acciones: en dark el "bronze-900" es muy oscuro → teal brillante */
html[data-theme="dark"] .btn--primary,
html[data-theme="dark"] .btn--small,
html[data-theme="dark"] .nav__cta,
html[data-theme="dark"] .tab.is-active{background:linear-gradient(135deg,#2c9aa8,#43b6c4);color:#06222b}
html[data-theme="dark"] .btn--primary:hover,
html[data-theme="dark"] .nav__cta:hover{background:linear-gradient(135deg,#37b0bf,#5fd0e0)}
html[data-theme="dark"] .btn--light{background:#eaf6f8;color:#06303a}
html[data-theme="dark"] .chat__send{background:linear-gradient(135deg,#2c9aa8,#43b6c4);color:#06222b}
html[data-theme="dark"] .chat__chip:hover{background:linear-gradient(135deg,#2c9aa8,#43b6c4);color:#06222b;border-color:transparent}
/* superficies claras del chat → oscuras */
html[data-theme="dark"] .msg--bot,
html[data-theme="dark"] .typing{background:#143842;border-color:var(--line)}
html[data-theme="dark"] .chat__chip{background:#102f38;color:var(--aqua-600)}
html[data-theme="dark"] .chat__form,
html[data-theme="dark"] .chat__text:focus{background:#0c2730}
/* burbujas/avatares con texto blanco: oscurecer el degradado para pasar contraste */
html[data-theme="dark"] .msg--user{background:linear-gradient(135deg,#176d7b,#0f4f5d)}
html[data-theme="dark"] .tquote__av{background:linear-gradient(140deg,#176d7b,#0e4f5c)}
/* secciones oscuras: forzar texto claro + leve tinte */
html[data-theme="dark"] .confianza{background:#0b2b33;color:#eaf6f8}
html[data-theme="dark"] .cta__inner{color:#eaf6f8}
html[data-theme="dark"] .marquee__track span{color:var(--ink)}
/* mapas: oscurecer el embed de Google */
html[data-theme="dark"] .sede__map iframe{filter:invert(.9) hue-rotate(175deg) brightness(.92) contrast(.92)}

/* ---- Reduced motion para hero v4 ---- */
@media (prefers-reduced-motion:reduce){
  .hero__title .line>span{transform:none;animation:none}
  .hero__copy .eyebrow,.hero__lead,.hero__actions,.hero__trust{opacity:1;animation:none}
  .aurora,.hera-fab,.hera-fab__ava::after,.typing span,.hero-hera,.hero-hera__live{animation:none}
}

/* ============================================================
   Fondo ADN: base de página + secciones translúcidas
   (la hélice queda detrás; el contenido va encima)
   ============================================================ */
html{background:var(--sand)}
.hero,.trat,.tech,.resultados,.founder,.testi,.sedes,.feed{background:transparent}
.asesor{background:radial-gradient(80% 60% at 50% 0%,rgba(126,190,197,.16),transparent 70%)}