/* ============================================================
   SMARTBINDER — main.css
   ============================================================
   EDICIÓN RÁPIDA: modifica las variables en :root para cambiar
   colores, tipografía, espaciados y radios de manera global.
   ============================================================ */

/* ============================================================
   VARIABLES — edita aquí primero
   ============================================================ */
:root {

  /* --- Paleta de marca (EDITABLE) --- */
  --c-verde:        #1a7a50;  /* Color primario – verde (más saturado) */
  --c-azul:         #0f7aab;  /* Color primario – azul (más saturado) */
  --c-gris:         #555555;  /* Color secundario – gris */

  /* --- Colores de UI (derivados) --- */
  --c-negro:        #0e0e0e;
  --c-blanco:       #ffffff;
  --c-bg-light:     #f0f4f2;  /* fondo suave de secciones, tinte verde leve */
  --c-bg-alt:       #e8f0ee;  /* secciones alternas, tinte verde leve */
  --c-bg-dark:      #0e0e0e;  /* sección oscura (impacto) */
  --c-text:         #1a1a1a;  /* texto principal */
  --c-text-muted:   #606060;  /* texto secundario */
  --c-border:       #d4ddd9;  /* bordes y separadores, tinte verde leve */
  --c-error:        #d94040;  /* validación de formulario */
  --c-success-bg:   #edfce6;
  --c-success-text: #2c6a12;
  --c-error-bg:     #fdecea;
  --c-error-text:   #9b2020;

  /* --- Acentos (apuntan a las variables de marca) --- */
  --c-accent:       var(--c-verde);
  --c-accent-hover: #136040;
  --c-accent-2:     var(--c-azul);
  --c-azul-hover:   #0c638e;

  /* --- Tipografía (EDITABLE) --- */
  --font:           'Inter', system-ui, -apple-system, sans-serif;
  --fw-light:       300;
  --fw-regular:     400;
  --fw-medium:      500;
  --fw-semibold:    600;
  --fw-bold:        700;
  --fw-black:       900;

  /* --- Layout (EDITABLE) --- */
  --max-w:          1200px;
  --max-w-narrow:   760px;
  --nav-h:          72px;

  /* --- Espaciados (EDITABLE) --- */
  --sp-xs:   0.5rem;
  --sp-sm:   1rem;
  --sp-md:   2rem;
  --sp-lg:   4rem;
  --sp-xl:   7rem;

  /* --- Radios (EDITABLE) --- */
  --r-xs:  4px;
  --r-sm:  8px;
  --r-md:  14px;
  --r-lg:  24px;

  /* --- Transiciones (EDITABLE) --- */
  --t-fast:   0.18s ease;
  --t:        0.32s cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow:   0.75s cubic-bezier(0.4, 0, 0.2, 1);
}


/* ============================================================
   RESET
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  font-weight: var(--fw-regular);
  color: var(--c-text);
  background: var(--c-blanco);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
ul  { list-style: none; }
a   { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* Scroll offset para nav fija */
section[id] { scroll-margin-top: var(--nav-h); }


/* ============================================================
   UTILIDADES GLOBALES
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-md);
}

.container--narrow { max-width: var(--max-w-narrow); }

.container--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-xl);
  align-items: center;
}

/* Etiqueta de sección (tipo "QUÉ HACEMOS") */
.label {
  font-size: 0.72rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-azul);
  margin-bottom: var(--sp-sm);
  display: block;
}

.label-hero {
  font-size: 0.72rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-blanco);
  margin-bottom: var(--sp-sm);
  display: block;
}

.label--light { color: rgba(255,255,255,0.75); }

/* Acento tipográfico */
.accent        { color: var(--c-accent); }
.accent--azul  { color: var(--c-azul); }

/* Sección base */
.section { padding: var(--sp-xl) 0; }
.section--alt        { background: var(--c-bg-alt); }
.section--gray       { background: #616160; color: var(--c-blanco); }
.section--soft-green { background: #eaf5ef; }
.section--soft-blue  { background: #e8f3f9; }
.section--dark  { background: var(--c-bg-dark); color: var(--c-blanco); }
.section--green { background: var(--c-verde);   color: var(--c-blanco); }
.section--blue  { background: var(--c-azul);    color: var(--c-blanco); }

/* Título de sección */
.section__title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: var(--fw-black);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin-bottom: var(--sp-md);
}

/* Intro / bajada de sección */
.section__intro {
  font-size: 1.05rem;
  color: var(--c-text-muted);
  max-width: 680px;
  margin-bottom: var(--sp-lg);
  line-height: 1.7;
}

/* Layout alternativo para secciones con texto + imagen lateral */
.doble-container {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: var(--sp-lg);
  align-items: center;
}

.section__image {
  width: 100%;
  max-width: 420px;
  height: auto;
  object-fit: cover;
  justify-self: center;
}

/* Ajustes responsivos: imagen por debajo del texto en pantallas pequeñas */
@media (max-width: 960px) {
  .doble-container { grid-template-columns: 1fr; }
  .section__image { max-width: 100%; margin-top: var(--sp-sm); justify-self: stretch; }
  /* Colocar la imagen arriba en móvil, texto debajo */
  .doble-container > .section__image { grid-row: 1; }
  .doble-container > .doble-left { grid-row: 2; }
  .pillars { margin-top: var(--sp-md); }
}

.section--dark .section__intro,
.section--gray .section__intro,
.section--green .section__intro,
.section--blue .section__intro  { color: rgba(255, 255, 255, 0.72); }

.section--gray .label { color: rgba(255, 255, 255, 0.65); }
.section--gray h2, .section--gray h3, .section--gray p, .section--gray strong { color: var(--c-blanco); }
.section--gray .bullet-list li i { color: #ffd580; }

/* Tarjeta base */
.card {
  background: var(--c-blanco);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--sp-md);
  transition: box-shadow var(--t), transform var(--t);
}
.card:hover {
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.09);
  transform: translateY(-3px);
}

/* Salto de línea solo en escritorio */
.br-desk { display: block; }


/* ============================================================
   BOTONES
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-size: 0.95rem;
  font-weight: var(--fw-semibold);
  border-radius: var(--r-sm);
  white-space: nowrap;
  transition: background var(--t), color var(--t), border-color var(--t), transform var(--t-fast);
  line-height: 1;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--c-accent);
  color: var(--c-blanco);
}
.btn--primary:hover { background: var(--c-accent-hover); }

.btn--ghost {
  border: 2px solid var(--c-azul);
  color: var(--c-azul);
}
.btn--ghost:hover {
  background: var(--c-azul);
  border-color: var(--c-azul);
  color: var(--c-blanco);
}

.btn--full {
  width: 100%;
  justify-content: center;
}


/* ============================================================
   REVEAL ANIMATION (IntersectionObserver)
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
[data-reveal][data-reveal-dir="left"] {
  transform: translateX(-36px) translateY(0);
}
[data-reveal][data-reveal-dir="right"] {
  transform: translateX(36px) translateY(0);
}
[data-reveal][data-reveal-dir="fade"] {
  transform: none;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0) translateX(0);
}


/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: border-color var(--t), box-shadow var(--t);
}
.nav.scrolled {
  border-bottom-color: var(--c-border);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-md);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}
.nav__isotipo { height: 65px; width: auto; }
.nav__brand {
  font-size: 1.65rem;
  font-weight: var(--fw-bold);
  letter-spacing: -0.01em;
  color: var(--c-negro);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
}
.nav__links a {
  font-size: 0.88rem;
  font-weight: var(--fw-medium);
  color: var(--c-gris);
  transition: color var(--t);
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--c-azul);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t);
}
.nav__links a:hover,
.nav__links a.active { color: var(--c-negro); }
.nav__links a:hover::after,
.nav__links a.active::after { transform: scaleX(1); }

.nav__cta {
  background: var(--c-accent) !important;
  color: var(--c-blanco) !important;
  padding: 0.5rem 1.25rem;
  border-radius: var(--r-sm);
}
.nav__cta::after { display: none; }
.nav__cta:hover { background: var(--c-accent-hover) !important; }

.nav__toggle {
  display: none;
  font-size: 1.6rem;
  color: var(--c-negro);
  padding: 0.25rem;
  flex-shrink: 0;
}

/* Dropdown */
.nav__item--dropdown {
  position: relative;
}
.nav__dropdown-toggle {
  font-size: 0.88rem;
  font-weight: var(--fw-medium);
  color: var(--c-gris);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
  padding: 0;
  transition: color var(--t);
  position: relative;
}
.nav__dropdown-toggle::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 1.4rem;
  height: 2px;
  background: var(--c-azul);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t);
}
.nav__dropdown-toggle i {
  font-size: 0.8rem;
  transition: transform var(--t);
}
.nav__item--dropdown:hover .nav__dropdown-toggle,
.nav__item--dropdown.is-open .nav__dropdown-toggle { color: var(--c-negro); }
.nav__item--dropdown:hover .nav__dropdown-toggle::after,
.nav__item--dropdown.is-open .nav__dropdown-toggle::after { transform: scaleX(1); }
.nav__item--dropdown.is-open .nav__dropdown-toggle i { transform: rotate(180deg); }

.nav__dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--c-blanco);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  box-shadow: 0 12px 36px rgba(0,0,0,0.10);
  min-width: 200px;
  padding: 0.5rem 0;
  z-index: 200;
  flex-direction: column;
}
.nav__item--dropdown.is-open .nav__dropdown { display: flex; }
.nav__dropdown li a {
  display: block;
  padding: 0.6rem 1.25rem;
  font-size: 0.88rem;
  color: var(--c-text);
  transition: background var(--t), color var(--t);
  white-space: nowrap;
}
.nav__dropdown li a::after { display: none; }
.nav__dropdown li a:hover {
  background: var(--c-bg-light);
  color: var(--c-azul);
}


/* ============================================================
   SCROLL-NAV LATERAL
   ============================================================ */
.scroll-nav {
  position: fixed;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 900;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.scroll-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 0;
}
.scroll-nav__dot {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-border);
  border: 2px solid var(--c-border);
  transition: background var(--t), border-color var(--t), transform var(--t);
  position: relative;
}
.scroll-nav__dot::before {
  content: attr(data-label);
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--c-negro);
  color: var(--c-blanco);
  font-size: 0.72rem;
  font-weight: var(--fw-medium);
  padding: 0.2rem 0.6rem;
  border-radius: var(--r-xs);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t);
}
.scroll-nav__dot:hover::before { opacity: 1; }
.scroll-nav__dot:hover {
  background: var(--c-azul);
  border-color: var(--c-azul);
  transform: scale(1.4);
}
.scroll-nav__dot.is-active {
  background: var(--c-accent);
  border-color: var(--c-accent);
  transform: scale(1.35);
}


/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + var(--sp-xl)) 0 var(--sp-xl);
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(240,247,244,0.25) 0%, rgba(232,242,238,0.25) 40%, rgba(238,244,248,0.25) 100%), url('../images/hero.jpg') center/cover no-repeat;
}
.hero .container { position: relative; z-index: 3; }

.hero__title {
  font-size: clamp(2.4rem, 6vw, 3rem);
  font-weight: var(--fw-black);
  line-height: 1.04;
  letter-spacing: -0.035em;
  margin-bottom: var(--sp-md);
  max-width: 860px;
}

/* Overlay y contraste para imagen del hero */
.hero {
  color: var(--c-blanco);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.45) 30%, rgba(0,0,0,0.55) 100%);
  z-index: 2;
  pointer-events: none;
}
.hero__title,
.hero__sub {
  color: rgba(255,255,255,0.95);
}
.hero__sub { color: rgba(255,255,255,0.9); }

/* Botones en hero: versión sobre imagen */
.hero .btn--primary { background: rgba(255,255,255,0.12); color: var(--c-blanco); border: 1px solid rgba(255,255,255,0.18); }
.hero .btn--primary:hover { background: rgba(255,255,255,0.18); }
.hero .btn--ghost { border-color: rgba(255,255,255,0.85); color: rgba(255,255,255,0.95); }
.hero .btn--ghost:hover { background: rgba(255,255,255,0.08); }

/* Marca de agua del hero más tenue */
.hero__bg-mark { opacity: 0.12; filter: saturate(0.8) contrast(0.9); }

/* Asegurar legibilidad del logo cuando el nav es transparente */
.nav.scrolled .nav__logo .nav__isotipo { filter: none; }

.hero__sub {
  font-size: clamp(1.5rem, 3vw, 1.7rem);
  color: var(--c-blanco);
  max-width: 580px;
  margin-bottom: var(--sp-lg);
  font-weight: var(--fw-semibold);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: var(--sp-sm);
  flex-wrap: wrap;
}

/* Marca de agua decorativa */
.hero__bg-mark {
  position: absolute;
  right: -4%;
  top: 50%;
  transform: translateY(-50%);
  width: 44%;
  max-width: 580px;
  opacity: 0.3;
  pointer-events: none;
  z-index: 1;
  user-select: none;
}
.hero__bg-mark img { width: 100%; }

/* ============================================================
   MEDIA: placeholders para imágenes de sección
   Las imágenes se colocan en assets/images/ con nombres recomendados.
   ============================================================ */
/* Removed section image placeholders; hero uses background image only */


/* ============================================================
   QUÉ HACEMOS – PILARES
   ============================================================ */
/* .doble-container was previously redefined here and forced to flex,
   which conflicted with the grid layout above. Removed duplicate
   definition so grid + responsive rules work as intended. */
   .pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
}

.pillar { text-align: center; padding: var(--sp-lg) var(--sp-md); }

.pillar__icon {
  width: 68px;
  height: 68px;
  background: rgba(26, 122, 80, 0.10);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--sp-sm);
  font-size: 1.9rem;
  color: var(--c-accent);
  transition: background var(--t), color var(--t);
}
.pillar:hover .pillar__icon {
  background: var(--c-azul);
  color: var(--c-blanco);
}

.pillar h3 {
  font-size: 1rem;
  font-weight: var(--fw-semibold);
  margin-bottom: 0.5rem;
}
.pillar p { font-size: 0.92rem; color: var(--c-text-muted); }


/* ============================================================
   PROBLEMA – SPLIT
   ============================================================ */
.split__text h2 {
  font-size: clamp(1.7rem, 3.8vw, 3rem);
  font-weight: var(--fw-black);
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: var(--sp-md);
}
.split__text p {
  color: var(--c-text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.bullet-list { display: flex; flex-direction: column; gap: 1rem; }
.bullet-list li {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 1rem;
  font-weight: var(--fw-medium);
  line-height: 1.4;
}
.bullet-list li i {
  color: var(--c-error);
  font-size: 1.4rem;
  flex-shrink: 0;
}


/* ============================================================
   PROPUESTA DE VALOR
   ============================================================ */
.propuesta__grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: var(--sp-xl);
  align-items: start;
}

.propuesta__text p {
  color: var(--c-text-muted);
  margin-bottom: var(--sp-sm);
  font-size: 1.05rem;
  line-height: 1.75;
}

.check-list { display: flex; flex-direction: column; gap: 0.9rem; }
.check-list li {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-weight: var(--fw-medium);
  font-size: 1rem;
}
.check-list li i {
  color: var(--c-accent);
  font-size: 1.5rem;
  flex-shrink: 0;
}


/* ============================================================
   IMPACTO – SECCIÓN OSCURA
   ============================================================ */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
  margin-top: var(--sp-lg);
}

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

.stat__title {
  font-size: 1rem;
  font-weight: var(--fw-semibold);
  color: var(--c-blanco);
  line-height: 1.4;
  margin-bottom: var(--sp-xs);
}

.stat__list {
  list-style: disc;
  padding-left: 1.25em;
  text-align: left;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.stat {
  text-align: center;
  padding: var(--sp-lg) var(--sp-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--r-md);
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
  transition: border-color var(--t), background var(--t);
}
.stat:hover {
  border-color: rgba(30, 141, 181, 0.45);
  background: rgba(30, 141, 181, 0.07);
}

.stat__num {
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  font-weight: var(--fw-black);
  letter-spacing: -0.04em;
  color: var(--c-verde);
  line-height: 1;
}
.stat__desc {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.4;
}

/* Overrides sección verde (Impacto) */
.section--green .label      { color: rgba(255, 255, 255, 0.62); letter-spacing: 0.2em; }
.section--green .stat                { border-color: rgba(255, 255, 255, 0.2); text-align: left; }
.section--green .stat:hover          { border-color: rgba(255, 255, 255, 0.5); background: rgba(255, 255, 255, 0.1); }
.section--green .stat__num           { color: var(--c-blanco); }
.section--green .stat__desc          { color: rgba(255, 255, 255, 0.78); }
.section--green .service__icon       { display: block !important; font-size: 3rem; color: var(--c-blanco); margin-bottom: 0.5rem; text-align: center; }


/* ============================================================
   QUIÉNES
   ============================================================ */
.quienes__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
  margin-top: var(--sp-lg);
}

.quien {
  padding: var(--sp-lg) var(--sp-md);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: border-color var(--t), background var(--t), box-shadow var(--t);
}
.quien:hover {
  border-color: var(--c-accent);
  background: var(--c-bg-light);
  box-shadow: 0 6px 24px rgba(26,122,80,0.10);
}

.quien__icon {
  font-size: 1.8rem;
  color: var(--c-accent);
  line-height: 1;
}

.quien h3 {
  font-size: 1rem;
  font-weight: var(--fw-semibold);
  margin: 0;
}

.quien p {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  margin: 0;
}


/* ============================================================
   SERVICIOS
   ============================================================ */
.services {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-border);
  margin-top: var(--sp-md);
}

.service {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--sp-md);
  padding: var(--sp-lg) var(--sp-sm);
  border-bottom: 1px solid var(--c-border);
  align-items: start;
  transition: background var(--t), padding-left var(--t), border-left-color var(--t);
  border-radius: var(--r-xs);
  border-left: 3px solid transparent;
}
.service:hover {
  background: var(--c-bg-light);
  padding-left: var(--sp-md);
  border-left-color: var(--c-accent);
}

.service__num {
  font-size: 3.2rem;
  font-weight: var(--fw-black);
  color: var(--c-border);
  line-height: 1;
  padding-top: 4px;
  letter-spacing: -0.05em;
  transition: color var(--t);
}
.service:hover .service__num { color: var(--c-azul); }

.service__icon { display: none; }

.service__body h3 {
  font-size: 1.2rem;
  font-weight: var(--fw-bold);
  margin-bottom: 0.4rem;
}
.service__body > p {
  color: var(--c-text-muted);
  margin-bottom: var(--sp-sm);
  font-size: 1rem;
}
.service__body ul {
  display: flex;
  flex-wrap: wrap;
  column-gap: var(--sp-md);
  row-gap: 0.3rem;
  padding-left: 1.1rem;
  list-style: disc;
  color: var(--c-text-muted);
  font-size: 0.9rem;
}


/* ============================================================
   NOSOTROS
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-xl);
  align-items: start;
}

.about__lead {
  font-size: 1.15rem;
  font-weight: var(--fw-medium);
  color: var(--c-text) !important;
  margin-bottom: var(--sp-md) !important;
  line-height: 1.65;
}
.about__text p {
  color: var(--c-text-muted);
  margin-bottom: var(--sp-sm);
  font-size: 1rem;
}

.diferencial-list { display: flex; flex-direction: column; gap: var(--sp-md); }
.diferencial-list li {
  display: flex;
  gap: var(--sp-sm);
  align-items: flex-start;
}
.diferencial-list li > i {
  font-size: 1.9rem;
  color: var(--c-azul);
  flex-shrink: 0;
  margin-top: 2px;
}
.diferencial-list li strong {
  display: block;
  font-weight: var(--fw-semibold);
  margin-bottom: 0.2rem;
  font-size: 0.98rem;
}
.diferencial-list li p {
  color: var(--c-text-muted);
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.5;
}

/* Overrides sección azul (Nosotros) */
.section--blue .label                      { color: rgba(255, 255, 255, 0.62); letter-spacing: 0.2em; }
.section--blue .section__title             { color: var(--c-blanco); }
.section--blue .about__lead                { color: var(--c-blanco) !important; }
.section--blue .about__text p              { color: rgba(255, 255, 255, 0.78) !important; }
.section--blue .about__text strong         { color: var(--c-blanco); }
.section--blue .diferencial-list li > i    { color: rgba(255, 255, 255, 0.85); }
.section--blue .diferencial-list li strong { color: var(--c-blanco); }
.section--blue .diferencial-list li p      { color: rgba(255, 255, 255, 0.72); }


/* ============================================================
   SOSTENIBILIDAD
   ============================================================ */
.sost__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-md);
  margin-bottom: var(--sp-xl);
}

.sost__item { text-align: center; padding: var(--sp-md); }
.sost__item > i {
  font-size: 2.2rem;
  color: var(--c-accent);
  margin-bottom: var(--sp-sm);
  display: block;
  transition: color var(--t);
}
.sost__item:hover > i { color: var(--c-azul); }

.sost__item h4 {
  font-size: 0.97rem;
  font-weight: var(--fw-semibold);
  margin-bottom: 0.4rem;
}
.sost__item p {
  font-size: 0.87rem;
  color: var(--c-text-muted);
  line-height: 1.5;
}

/* Cita */
.quote {
  border-left: 4px solid var(--c-accent);
  padding: var(--sp-md) var(--sp-lg);
  background: var(--c-bg-light);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}
.quote p {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: var(--fw-semibold);
  font-style: italic;
  color: var(--c-negro);
  line-height: 1.45;
}


/* ============================================================
   PROYECTOS / CASOS
   ============================================================ */
.casos {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
  margin-top: var(--sp-lg);
}

.caso {
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--sp-lg);
  transition: border-color var(--t), background var(--t);
}
.caso:hover {
  border-color: rgba(30, 141, 181, 0.4);
  background: var(--c-bg-light);
}
.caso--placeholder {
  border-style: dashed;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.caso--placeholder:hover { background: none; border-color: var(--c-border); }
.caso--placeholder > i { font-size: 1.6rem; color: var(--c-accent); }

.caso__header {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  margin-bottom: var(--sp-md);
}
.caso__num {
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  white-space: nowrap;
  background: rgba(30, 141, 181, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
}
.caso__header h4 {
  font-size: 1.1rem;
  font-weight: var(--fw-bold);
  margin: 0;
}

.caso__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-lg);
}

.caso__label {
  font-size: 0.78rem;
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-text-muted);
  margin-bottom: 0.5rem !important;
}

.caso__col > p:not(.caso__label) {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  margin-bottom: var(--sp-sm);
}

.caso__col ul {
  list-style: disc;
  padding-left: 1.2em;
  font-size: 0.9rem;
  color: var(--c-text-muted);
  line-height: 1.7;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.caso__resultado { border-left: 1px solid var(--c-border); padding-left: var(--sp-lg); }
.caso__resultado ul li { color: var(--c-text); }


/* ============================================================
   FORMULARIO DE CONTACTO
   ============================================================ */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
  margin-top: var(--sp-lg);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-sm);
}

.form__field { display: flex; flex-direction: column; gap: 0.4rem; }

.form__field label {
  font-size: 0.84rem;
  font-weight: var(--fw-semibold);
  color: var(--c-text);
}

.form__opt {
  font-weight: var(--fw-regular);
  color: var(--c-text-muted);
  font-size: 0.8rem;
}

.form__field input,
.form__field textarea {
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--c-text);
  background: var(--c-blanco);
  transition: border-color var(--t), box-shadow var(--t);
  resize: vertical;
  appearance: none;
  -webkit-appearance: none;
}
.form__field input::placeholder,
.form__field textarea::placeholder { color: #bbb; }

.form__field input:focus,
.form__field textarea:focus {
  outline: none;
  border-color: var(--c-azul);
  box-shadow: 0 0 0 3px rgba(30, 141, 181, 0.18);
}

.form__field input.error,
.form__field textarea.error {
  border-color: var(--c-error);
  box-shadow: 0 0 0 3px rgba(217, 64, 64, 0.12);
}

.form__footer {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  flex-wrap: wrap;
  margin-top: var(--sp-xs);
}

.form__note {
  font-size: 0.82rem;
  color: var(--c-text-muted);
}

.form__feedback {
  font-size: 0.92rem;
  padding: var(--sp-sm) 1rem;
  border-radius: var(--r-sm);
  display: none;
  margin-top: var(--sp-xs);
}
.form__feedback.success {
  display: block;
  background: var(--c-success-bg);
  color: var(--c-success-text);
  border: 1px solid #b6e8a0;
}
.form__feedback.error-msg {
  display: block;
  background: var(--c-error-bg);
  color: var(--c-error-text);
  border: 1px solid #f3b8b8;
}


/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--c-bg-dark);
  color: rgba(255, 255, 255, 0.6);
  padding: var(--sp-xl) 0 var(--sp-lg);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--sp-md);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.footer__logo {
  height: 140px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.85;
}
.footer__name {
  font-size: 1.15rem;
  font-weight: var(--fw-bold);
  color: var(--c-blanco);
}

.footer__tagline {
  font-size: 0.95rem;
  font-style: italic;
  color: rgba(255, 255, 255, 0.45);
  max-width: 340px;
  line-height: 1.55;
}

.footer__nav {
  display: flex;
  gap: var(--sp-md);
  flex-wrap: wrap;
  justify-content: center;
}
.footer__nav a {
  font-size: 0.86rem;
  font-weight: var(--fw-medium);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--t);
}
.footer__nav a:hover { color: var(--c-blanco); }

.footer__social { display: flex; gap: var(--sp-sm); }
.footer__social-link {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--t), border-color var(--t), background var(--t);
}
.footer__social-link:hover {
  color: var(--c-blanco);
  border-color: var(--c-azul);
  background: rgba(30, 141, 181, 0.15);
}

.footer__copy {
  font-size: 0.79rem;
  color: rgba(255, 255, 255, 0.28);
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding-top: var(--sp-md);
  width: 100%;
  text-align: center;
}


/* ============================================================
   RESPONSIVE – TABLET (≤ 960px)
   ============================================================ */
@media (max-width: 960px) {
  .pillars                { grid-template-columns: 1fr; }
  .container--split       { grid-template-columns: 1fr; gap: var(--sp-lg); }
  .propuesta__grid        { grid-template-columns: 1fr; }
  .stats                  { grid-template-columns: 1fr; }
  .quienes__grid          { grid-template-columns: repeat(2, 1fr); }
  .about__grid            { grid-template-columns: 1fr; }
  .sost__grid             { grid-template-columns: repeat(2, 1fr); }
  .proyectos__grid        { grid-template-columns: 1fr; }
  .caso__body             { grid-template-columns: 1fr; }
  .caso__resultado        { border-left: none; padding-left: 0; border-top: 1px solid var(--c-border); padding-top: var(--sp-md); }
  .pillar                 { text-align: left; display: flex; align-items: flex-start; gap: var(--sp-sm); }
  .pillar__icon           { flex-shrink: 0; }
  .scroll-nav             { display: none; }
}


/* ============================================================
   RESPONSIVE – MÓVIL (≤ 640px)
   ============================================================ */
@media (max-width: 640px) {
  :root {
    --sp-xl: 5rem;
    --sp-lg: 2.5rem;
    --sp-md: 1.5rem;
  }

  /* Nav mobile */
  .nav__links {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--c-blanco);
    padding: var(--sp-md);
    border-bottom: 1px solid var(--c-border);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.09);
    gap: var(--sp-sm);
  }
  .nav__links.is-open  { display: flex; }
  .nav__links a        { font-size: 1rem; padding: 0.4rem 0; width: 100%; }
  .nav__links a::after { display: none; }
  .nav__cta            { display: block; text-align: center; }
  .nav__toggle         { display: block; }

  /* Dropdown en móvil: inline, no posicionado */
  .nav__dropdown {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--c-border);
    border-radius: 0;
    padding: 0.25rem 0 0.25rem 1rem;
    margin-top: 0.25rem;
    background: transparent;
  }
  .nav__dropdown li a { padding: 0.35rem 0; font-size: 0.95rem; }
  .nav__dropdown-toggle { font-size: 1rem; padding: 0.4rem 0; width: 100%; }

  /* Hero */
  .hero__bg-mark { display: none; }
  .br-desk       { display: none; }

  /* Pillar layout reset en móvil */
  .pillar { flex-direction: column; text-align: center; }
  .pillar__icon { margin: 0 auto var(--sp-sm); }

  /* Sostenibilidad */
  .sost__grid    { grid-template-columns: 1fr; }
  .quienes__grid { grid-template-columns: 1fr; }

  /* Servicios */
  .service                    { grid-template-columns: 44px 1fr; }
  .service__icon              { display: block; font-size: 1.4rem; color: var(--c-accent); margin-top: 4px; }
  .service__num               { font-size: 2.2rem; }

  /* Formulario */
  .form__row    { grid-template-columns: 1fr; }
  .form__footer { flex-direction: column; align-items: stretch; }
}