/* =========================================================================
   VAINILLA LAB — Hoja de estilos principal
   Estructura:
   1. Variables / tokens de diseño
   2. Reset y base
   3. Utilidades y tipografía
   4. Componentes (botones, badges, etiquetas)
   5. Header / navegación
   6. Hero
   7. Quiénes somos
   8. Portafolio + lightbox
   9. Qué hacemos (tabs)
   10. Confianza (marquee)
   11. Encuentra tu propuesta
   12. Llamado a la acción
   13. Footer
   14. Botón flotante WhatsApp
   15. Animaciones / scroll-reveal
   16. Responsive
   ========================================================================= */

/* -------------------------------------------------------------------------
   1. VARIABLES / TOKENS
   Paleta extraída de la guía de marca (colores.jpeg):
   indigo profundo -> púrpura -> magenta -> naranja, sobre negro.
------------------------------------------------------------------------- */
:root{
  /* Fondos */
  --black:        #060508;
  --black-soft:   #0c0a11;
  --black-card:   #121016;
  --line:         rgba(247, 245, 240, 0.12);
  --line-strong:  rgba(247, 245, 240, 0.22);

  /* Texto */
  --white:        #f7f5f0;
  --grey:         #a7a3af;
  --grey-dim:     #706c78;

  /* Marca */
  --indigo:       #24187a;
  --purple:       #7a1fb0;
  --pink:         #ef3a72;
  --orange:       #f6923c;

  --gradient-brand: linear-gradient(115deg, var(--indigo) 0%, var(--purple) 38%, var(--pink) 70%, var(--orange) 100%);
  --gradient-brand-soft: linear-gradient(115deg, rgba(36,24,122,.55) 0%, rgba(122,31,176,.55) 38%, rgba(239,58,114,.55) 70%, rgba(246,146,60,.55) 100%);

  /* Tipografía */
  --font-display: 'Unbounded', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  /* Layout */
  --container-w: 1240px;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --gutter: clamp(20px, 5vw, 64px);

  /* Movimiento */
  --ease: cubic-bezier(.16,.84,.44,1);
  --dur: .7s;
}

/* -------------------------------------------------------------------------
   2. RESET Y BASE
------------------------------------------------------------------------- */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

body{
  margin: 0;
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ list-style: none; margin: 0; padding: 0; }
button{ font: inherit; cursor: pointer; background: none; border: none; color: inherit; }
textarea{ font: inherit; }
h1,h2,h3,h4{ margin: 0; font-family: var(--font-display); font-weight: 800; line-height: 1.05; }
p{ margin: 0 0 1.1em; color: var(--grey); max-width: 62ch; }
p:last-child{ margin-bottom: 0; }

.skip-link{
  position: absolute; left: -999px; top: 0; z-index: 999;
  background: var(--orange); color: #100a05; padding: 12px 18px; border-radius: 0 0 8px 0;
}
.skip-link:focus{ left: 0; }

:focus-visible{
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* -------------------------------------------------------------------------
   3. UTILIDADES / TIPOGRAFÍA
------------------------------------------------------------------------- */
.container{
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section{ position: relative; padding-block: clamp(72px, 11vw, 148px); }

.eyebrow{
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--white);
  padding-bottom: 10px;
  margin-bottom: 22px;
  border-bottom: 2px solid transparent;
  border-image: var(--gradient-brand) 1;
  position: relative;
}
.eyebrow::before{
  content: '';
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--gradient-brand);
  display: inline-block;
}
.eyebrow--dark{ color: #17101f; border-image: linear-gradient(90deg, #17101f, #17101f) 1; }
.eyebrow--dark::before{ background: #17101f; }

.section-title{
  font-size: clamp(1.9rem, 3.6vw, 3.1rem);
  max-width: 16ch;
  margin-bottom: 22px;
  letter-spacing: -.01em;
}

.section-head{
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  margin-bottom: clamp(40px, 6vw, 72px);
  flex-wrap: wrap;
}
.section-head__note{
  max-width: 32ch;
  font-size: .98rem;
  padding-bottom: 4px;
}

.pull-quote{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  line-height: 1.25;
  max-width: 18ch;
  margin: 34px 0;
  color: var(--white);
}
.pull-quote span{
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.pull-quote--lg{
  max-width: 22ch;
  font-size: clamp(1.9rem, 4.2vw, 3.4rem);
  margin-inline: auto;
}

/* -------------------------------------------------------------------------
   4. COMPONENTES: botones y etiquetas
------------------------------------------------------------------------- */
.badge{
  display: inline-block;
  font-size: .82rem;
  color: var(--grey);
  background: rgba(247,245,240,.05);
  border: 1px solid var(--line);
  padding: 9px 18px;
  border-radius: 999px;
  margin-bottom: 20px;
  backdrop-filter: blur(6px);
}

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: .98rem;
  padding: 16px 30px;
  border-radius: 999px;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .35s var(--ease), color .35s var(--ease);
  white-space: nowrap;
}
.btn--primary{
  background: var(--gradient-brand);
  color: var(--white);
  box-shadow: 0 10px 30px -10px rgba(239,58,114,.55);
}
.btn--primary:hover{ transform: translateY(-3px); box-shadow: 0 16px 36px -10px rgba(239,58,114,.7); }
.btn--ghost{
  background: transparent;
  color: var(--white);
  border: 1.5px solid var(--line-strong);
}
.btn--ghost:hover{ border-color: var(--white); background: rgba(247,245,240,.06); }
.btn--dark{
  background: #17101f;
  color: var(--white);
}
.btn--dark:hover{ transform: translateY(-3px); }
.btn--small{ padding: 11px 22px; font-size: .88rem; }
.btn--wide{ width: 100%; }
.btn.is-disabled{
  opacity: .4;
  pointer-events: none;
}

/* -------------------------------------------------------------------------
   5. HEADER / NAVEGACIÓN
------------------------------------------------------------------------- */
.site-header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding-block: 20px;
  transition: padding .4s var(--ease), background .4s var(--ease), border-color .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled{
  padding-block: 12px;
  background: rgba(6,5,8,.86);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.site-header__inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-header__logo img{ height: 30px; width: auto; }

.main-nav__list{
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 34px);
}
.main-nav__list a{
  font-size: .92rem;
  font-weight: 600;
  color: var(--grey);
  position: relative;
  padding-bottom: 4px;
  transition: color .3s;
}
.main-nav__list a::after{
  content: '';
  position: absolute; left: 0; bottom: 0;
  width: 0; height: 1.5px;
  background: var(--gradient-brand);
  transition: width .35s var(--ease);
}
.main-nav__list a:hover{ color: var(--white); }
.main-nav__list a:hover::after{ width: 100%; }

.site-header__actions{ display: flex; align-items: center; gap: 16px; }

.menu-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
}
.menu-toggle span{
  width: 22px; height: 2px; background: var(--white);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
  margin-inline: auto;
}
.menu-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

.mobile-menu{
  position: fixed;
  inset: 0;
  top: 0;
  background: rgba(6,5,8,.98);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity .4s var(--ease), transform .4s var(--ease), visibility .4s;
  z-index: 99;
}
.mobile-menu.is-open{ opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-menu ul{
  display: flex; flex-direction: column; align-items: center; gap: 28px;
}
.mobile-menu a{
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
}

/* -------------------------------------------------------------------------
   6. HERO
------------------------------------------------------------------------- */
.hero{
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
}
.hero__media{ overflow: hidden; }
.hero__media{ position: absolute; inset: 0; z-index: -2; }
.hero__video{
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.05);
}
.hero__overlay{
  position: absolute; inset: 0;
  background:
    linear-gradient(0deg, rgba(6,5,8,.96) 0%, rgba(6,5,8,.55) 46%, rgba(6,5,8,.35) 100%),
    linear-gradient(100deg, rgba(36,24,122,.35), rgba(239,58,114,.15) 55%, transparent 85%);
}
.hero__grain{
  position: absolute; inset: 0;
  opacity: .18;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.hero__content{
  position: relative;
  padding-bottom: clamp(48px, 7vw, 88px);
  padding-top: 128px;
}
.hero__title{
  font-size: clamp(2.3rem, 6.6vw, 5.6rem);
  text-transform: uppercase;
  letter-spacing: -.01em;
  line-height: 1.04;
  margin-bottom: 22px;
}
.hero__title .line{ display: block; }
.line--gradient{
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__subtitle{
  font-size: clamp(.98rem, 1.4vw, 1.15rem);
  max-width: 46ch;
  color: #d8d5df;
  margin-bottom: 30px;
}
.hero__actions{ display: flex; gap: 18px; flex-wrap: wrap; }

.hero__scroll{
  position: absolute;
  right: var(--gutter);
  bottom: 40px;
  width: 30px; height: 46px;
  border: 1.5px solid var(--line-strong);
  border-radius: 999px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}
.hero__scroll-dot{
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--orange);
  animation: scrollDot 1.8s infinite ease-in-out;
}
@keyframes scrollDot{
  0%{ transform: translateY(0); opacity: 1; }
  70%{ transform: translateY(14px); opacity: 0; }
  100%{ transform: translateY(14px); opacity: 0; }
}

/* -------------------------------------------------------------------------
   7. QUIÉNES SOMOS
------------------------------------------------------------------------- */
.nosotros__grid{
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(40px, 6vw, 90px);
  align-items: center;
}
.nosotros__text p{ font-size: 1.02rem; }

.nosotros__visual{ position: relative; }
.visual-card{
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 1 / 1;
}
.visual-card img{ width: 100%; height: 100%; object-fit: cover; }
.visual-card__tag{
  position: absolute;
  left: 20px; bottom: 20px; right: 20px;
  background: rgba(6,5,8,.75);
  backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 18px;
  font-size: .85rem;
  font-weight: 600;
  text-align: center;
}
.blob{
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: .5;
  z-index: -1;
}
.blob--1{
  width: 340px; height: 340px;
  background: var(--gradient-brand);
  top: -60px; right: -80px;
}

/* -------------------------------------------------------------------------
   8. PORTAFOLIO + LIGHTBOX
------------------------------------------------------------------------- */
.gallery{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.gallery__item{
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
}
.gallery__item img{
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease), filter .6s var(--ease);
  filter: saturate(1) contrast(1.02);
}
.gallery__item::after{
  content: attr(data-caption);
  position: absolute; inset: auto 0 0 0;
  padding: 16px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--white);
  background: linear-gradient(0deg, rgba(6,5,8,.9), transparent);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .4s var(--ease), transform .4s var(--ease);
}
.gallery__item:hover img{ transform: scale(1.06); }
.gallery__item:hover::after{ opacity: 1; transform: translateY(0); }

.lightbox{
  position: fixed; inset: 0; z-index: 200;
  background: rgba(6,5,8,.96);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity .35s var(--ease), visibility .35s;
  padding: var(--gutter);
}
.lightbox.is-open{ opacity: 1; visibility: visible; }
.lightbox__figure{
  max-width: min(90vw, 900px);
  text-align: center;
}
.lightbox__figure img{
  max-height: 78vh;
  width: auto;
  margin-inline: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-strong);
}
.lightbox__caption{
  margin-top: 18px;
  color: var(--grey);
  font-size: .95rem;
}
.lightbox__close, .lightbox__prev, .lightbox__next{
  position: absolute;
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  font-size: 1.3rem;
  transition: background .3s, transform .3s;
}
.lightbox__close:hover, .lightbox__prev:hover, .lightbox__next:hover{ background: rgba(247,245,240,.08); }
.lightbox__close{ top: 24px; right: 24px; }
.lightbox__prev{ left: 24px; top: 50%; transform: translateY(-50%); }
.lightbox__next{ right: 24px; top: 50%; transform: translateY(-50%); }

/* -------------------------------------------------------------------------
   9. QUÉ HACEMOS — tabs
------------------------------------------------------------------------- */
.tabs{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 24px;
}
.tabs__btn{
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .92rem;
  color: var(--grey);
  border: 1px solid var(--line);
  transition: all .3s var(--ease);
}
.tabs__btn:hover{ color: var(--white); border-color: var(--line-strong); }
.tabs__btn.is-active{
  background: var(--gradient-brand);
  color: var(--white);
  border-color: transparent;
}

.tab-panel{ display: none; }
.tab-panel.is-active{ display: block; animation: fadeUp .5s var(--ease); }
@keyframes fadeUp{
  from{ opacity: 0; transform: translateY(14px); }
  to{ opacity: 1; transform: translateY(0); }
}
.tab-panel__intro{ max-width: 62ch; margin-bottom: 36px; font-size: 1.02rem; }

.pillars{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.pillar-card{
  background: var(--black-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 34px 30px;
  transition: border-color .35s, transform .35s var(--ease);
  position: relative;
  overflow: hidden;
}
.pillar-card::before{
  content: '';
  position: absolute; inset: 0;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity .4s;
  z-index: 0;
}
.pillar-card:hover{ transform: translateY(-6px); border-color: transparent; }
.pillar-card:hover::before{ opacity: 1; }
.pillar-card > *{ position: relative; z-index: 1; }
.pillar-card__index{
  display: inline-block;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 14px;
  transition: color .35s;
}
.pillar-card:hover .pillar-card__index{ color: rgba(255,255,255,.75); }
.pillar-card h3{
  font-size: 1.5rem;
  margin-bottom: 18px;
}
.pillar-card ul{ display: flex; flex-direction: column; gap: 10px; }
.pillar-card li{
  font-size: .95rem;
  color: var(--grey);
  padding-left: 18px;
  position: relative;
  transition: color .35s;
}
.pillar-card:hover li{ color: rgba(247,245,240,.92); }
.pillar-card li::before{
  content: '';
  position: absolute; left: 0; top: 8px;
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
  opacity: .5;
}

.chip-grid{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.chip-grid span{
  padding: 13px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: .92rem;
  font-weight: 600;
  color: var(--grey);
  transition: all .3s var(--ease);
}
.chip-grid span:hover{
  color: var(--white);
  border-color: transparent;
  background: var(--gradient-brand-soft);
}

/* -------------------------------------------------------------------------
   10. CONFIANZA — marquee
------------------------------------------------------------------------- */
.confianza__head{
  text-align: center;
  max-width: 780px;
  margin-bottom: 60px;
}
.confianza__head .eyebrow{ justify-content: center; }
.confianza__head p:not(.eyebrow){ margin-inline: auto; }

.marquee{
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-block: 26px;
  -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;
  width: max-content;
  gap: 48px;
  animation: marquee 28s linear infinite;
}
.marquee:hover .marquee__track{ animation-play-state: paused; }
.marquee__item{
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 600;
  color: var(--grey-dim);
  white-space: nowrap;
  position: relative;
  padding-right: 48px;
}
.marquee__item::after{
  content: '✦';
  position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-size: .9rem;
  color: var(--orange);
  opacity: .6;
}
@keyframes marquee{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

/* -------------------------------------------------------------------------
   11. ENCUENTRA TU PROPUESTA
------------------------------------------------------------------------- */
.proposal-tool{
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: clamp(30px, 4vw, 56px);
  align-items: start;
}
.proposal-tool__options{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.option-card{
  text-align: left;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 22px;
  background: var(--black-card);
  transition: all .3s var(--ease);
}
.option-card:hover{ border-color: var(--line-strong); transform: translateY(-2px); }
.option-card.is-selected{
  border-color: transparent;
  background: var(--gradient-brand);
}
.option-card__title{
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}
.option-card__desc{
  display: block;
  font-size: .85rem;
  color: var(--grey);
}
.option-card.is-selected .option-card__desc{ color: rgba(247,245,240,.85); }

.proposal-tool__form{
  background: var(--black-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.proposal-tool__form label{
  font-size: .88rem;
  font-weight: 700;
}
.proposal-tool__form label span{ color: var(--grey-dim); font-weight: 500; }
.proposal-tool__form textarea{
  width: 100%;
  resize: vertical;
  background: var(--black-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--white);
  transition: border-color .3s;
}
.proposal-tool__form textarea:focus{ border-color: var(--orange); outline: none; }
.proposal-tool__preview{
  font-size: .88rem;
  color: var(--grey);
  background: var(--black-soft);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  min-height: 60px;
  white-space: pre-line;
}

/* -------------------------------------------------------------------------
   12. LLAMADO A LA ACCIÓN
------------------------------------------------------------------------- */
.cta{
  background: var(--gradient-brand);
  color: #17101f;
  overflow: hidden;
  position: relative;
}
.cta__grain{
  position: absolute; inset: 0;
  opacity: .12;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.cta__grid{
  position: relative;
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
}
.cta__title{
  font-size: clamp(2rem, 4vw, 3.4rem);
  color: #17101f;
  max-width: 14ch;
  margin-bottom: 22px;
}
.cta__text{ color: rgba(23,16,31,.78); font-size: 1.05rem; max-width: 50ch; margin-bottom: 32px; }

.cta__contact{
  border-left: 2px solid rgba(23,16,31,.25);
  padding-left: 30px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cta__contact-label{
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(23,16,31,.6);
  margin-bottom: 4px;
}
.cta__contact-link{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: #17101f;
  width: fit-content;
  border-bottom: 2px solid transparent;
  transition: border-color .3s;
}
.cta__contact-link:hover{ border-color: #17101f; }
.cta__contact-note{ color: rgba(23,16,31,.65); font-size: .9rem; margin-top: 8px; }

/* -------------------------------------------------------------------------
   13. FOOTER
------------------------------------------------------------------------- */
.site-footer{
  background: var(--black-soft);
  border-top: 1px solid var(--line);
  padding-top: clamp(56px, 8vw, 90px);
}
.site-footer__top{
  display: grid;
  grid-template-columns: 1.6fr .8fr .8fr .8fr;
  gap: 40px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--line);
}
.site-footer__brand p{ font-size: .92rem; margin-block: 18px; max-width: 32ch; }
.site-footer__social{ display: flex; align-items: center; gap: 10px; font-size: .88rem; }
.site-footer__social a{ font-weight: 700; color: var(--white); }
.site-footer__social a:hover{ color: var(--orange); }
.site-footer__social span{ color: var(--grey-dim); }

.site-footer__col p{
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 18px;
}
.site-footer__col ul{ display: flex; flex-direction: column; gap: 12px; }
.site-footer__col li{ font-size: .92rem; color: var(--grey); }
.site-footer__col a:hover{ color: var(--white); }

.site-footer__bottom{
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-block: 26px;
  font-size: .82rem;
  color: var(--grey-dim);
}

/* -------------------------------------------------------------------------
   14. BOTÓN FLOTANTE WHATSAPP
------------------------------------------------------------------------- */
.whatsapp-float{
  position: fixed;
  right: 22px; bottom: 22px;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: #25D366;
  color: #0d1f13;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px -6px rgba(37,211,102,.6);
  z-index: 90;
  animation: pulse 2.6s infinite;
}
.whatsapp-float:hover{ transform: scale(1.06); }
@keyframes pulse{
  0%{ box-shadow: 0 0 0 0 rgba(37,211,102,.55), 0 10px 26px -6px rgba(37,211,102,.6); }
  70%{ box-shadow: 0 0 0 14px rgba(37,211,102,0), 0 10px 26px -6px rgba(37,211,102,.6); }
  100%{ box-shadow: 0 0 0 0 rgba(37,211,102,0), 0 10px 26px -6px rgba(37,211,102,.6); }
}

/* -------------------------------------------------------------------------
   15. SCROLL REVEAL
------------------------------------------------------------------------- */
.reveal{
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

/* -------------------------------------------------------------------------
   16. RESPONSIVE
------------------------------------------------------------------------- */
@media (max-width: 980px){
  .main-nav{ display: none; }
  .menu-toggle{ display: flex; }
  .site-header__actions .btn{ display: none; }

  .nosotros__grid{ grid-template-columns: 1fr; }
  .nosotros__visual{ order: -1; max-width: 420px; margin-inline: auto; }

  .pillars{ grid-template-columns: 1fr; }
  .gallery{ grid-template-columns: repeat(2, 1fr); }

  .proposal-tool{ grid-template-columns: 1fr; }
  .proposal-tool__options{ grid-template-columns: 1fr; }

  .cta__grid{ grid-template-columns: 1fr; }
  .cta__contact{ border-left: none; border-top: 2px solid rgba(23,16,31,.25); padding-left: 0; padding-top: 24px; }

  .site-footer__top{ grid-template-columns: 1fr 1fr; }
  .site-footer__brand{ grid-column: 1 / -1; }
}

@media (max-width: 600px){
  .gallery{ grid-template-columns: repeat(2, 1fr); }
  .section-head{ flex-direction: column; align-items: flex-start; }
  .site-footer__top{ grid-template-columns: 1fr; }
  .hero__actions{ flex-direction: column; align-items: stretch; }
  .hero__actions .btn{ text-align: center; }
  .lightbox__prev, .lightbox__next{ width: 40px; height: 40px; }
}