/* ==============================================
   SERVINSOL — LANDING PAGE STYLES
   Light & Clean · Minimalist · Divergent
   ============================================== */

/* ---- CSS VARIABLES ---- */
:root {
  --white: #FFFFFF;
  --off-white: #F7F6F2;
  --black: #0D0D0D;
  --green: #6BBE31;
  --green-dark: #4A8B1F;
  --orange: #E35A2B;
  --gray: #6B6B6B;
  --gray-light: #E4E2DC;
  --brown: #2A1A0E;

  --font-display: 'Barlow Condensed', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --nav-height: 80px;
  --section-gap: 120px;
  --container-max: 1280px;
  --container-pad: clamp(1.5rem, 5vw, 5rem);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 2px 12px rgba(0, 0, 0, .06);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, .10);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, .14);

  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--black);
  background: var(--white);
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

ul {
  list-style: none;
}

/* ---- UTILITIES ---- */
.section-label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1.25rem;
  padding-left: 1rem;
  border-left: 3px solid var(--green);
}

.text-accent {
  color: var(--green);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--green);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(107, 190, 49, 0.35);
}

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

/* ---- SCROLL REVEAL ---- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================================
   NAVBAR
   =================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

/* Línea de acento verde en la base del navbar — siempre visible */
/* .navbar::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--green);
  opacity: 0.6;
  transition: opacity var(--transition);
} */
.navbar.scrolled::after {
  opacity: 0;
}

/* Estado con scroll: glass sobre off-white */
.navbar.scrolled {
  background: rgba(247, 246, 242, 0.78);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(228, 226, 220, 0.55);
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.06);
}

/*
  CRÍTICO: backdrop-filter crea un nuevo containing block para
  position:fixed hijos, lo que atrapa y recorta el menú mobile.
  Al abrir el menú se neutraliza el blur y se usa fondo sólido.
*/
.navbar.scrolled.menu-open {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  background: var(--off-white);
  transition-duration: 0s;
}

/* Contenedor */
.navbar__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  height: 100%;
  display: flex;
  align-items: center;
  gap: 0;
}

/* Logo: blanco sobre hero, color al hacer scroll */
.navbar__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  margin-right: auto;
  /* empuja el resto a la derecha */
}

.navbar__logo img {
  height: 50px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1) drop-shadow(0 1px 6px rgba(0, 0, 0, 0.4));
  transition: filter var(--transition);
}

.navbar.scrolled .navbar__logo img {
  filter: none;
}

/* Divisor vertical — separador editorial entre logo y nav */
.navbar__divider {
  width: 1px;
  height: 28px;
  background: rgba(255, 255, 255, 0.22);
  flex-shrink: 0;
  margin: 0 2.25rem;
  transition: background var(--transition);
}

.navbar.scrolled .navbar__divider {
  background: var(--gray-light);
}

/* Nav */
.navbar__nav {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

/* Links — Barlow Condensed, estilo editorial/arquitectónico */
.navbar__link {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.82);
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.35);
  transition: color var(--transition);
  position: relative;
  padding-bottom: 2px;
}

/* Underline que crece desde el centro */
.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 50%;
  width: 0;
  height: 1.5px;
  background: var(--green);
  transform: translateX(-50%);
  transition: width var(--transition);
}

.navbar__link:hover::after,
.navbar__link:focus::after {
  width: 100%;
}

.navbar__link:hover,
.navbar__link:focus {
  color: var(--white);
}

/* Sobre fondo claro */
.navbar.scrolled .navbar__link {
  color: var(--black);
  text-shadow: none;
}

.navbar.scrolled .navbar__link:hover {
  color: var(--green);
}

/* CTA — rectángulo nítido, tipografía condensada, flecha animada */
.navbar__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--green);
  padding: 0.65rem 1.4rem;
  border-radius: 2px;
  /* bordes nítidos — estética arquitectónica */
  margin-left: 2rem;
  transition: background var(--transition), gap var(--transition), box-shadow var(--transition);
  flex-shrink: 0;
}

.navbar__cta-arrow {
  font-size: 0.7rem;
  transition: transform var(--transition);
}

.navbar__cta:hover {
  background: var(--green-dark);
  gap: 0.85rem;
  /* la flecha se desplaza hacia la derecha */
  box-shadow: 0 4px 16px rgba(107, 190, 49, 0.35);
}

/* Hamburger (mobile) */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  margin-left: 1.5rem;
}

.navbar__hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition: var(--transition);
  transform-origin: center;
}

.navbar.scrolled .navbar__hamburger span {
  background: var(--black);
}

.navbar__hamburger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.navbar__hamburger.open span:nth-child(2) {
  opacity: 0;
}

.navbar__hamburger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ===================================================
   HERO
   =================================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
      rgba(10, 10, 10, 0.72) 0%,
      rgba(10, 10, 10, 0.45) 60%,
      rgba(107, 190, 49, 0.12) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  padding-top: var(--nav-height);
}

.hero__eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1.5rem;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 11vw, 10rem);
  font-weight: 800;
  line-height: 0.9;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 2rem;
}

.hero__title--accent {
  color: var(--green);
  -webkit-text-stroke: 0px;
}

.hero__subtitle {
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.1em;
  margin-bottom: 2.5rem;
  font-weight: 300;
}

.hero__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 1rem 2.25rem;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-sm);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  backdrop-filter: blur(8px);
}

.hero__btn:hover {
  background: var(--green);
  border-color: var(--green);
  transform: translateY(-2px);
}

.hero__btn svg {
  transition: transform var(--transition);
}

.hero__btn:hover svg {
  transform: translateY(3px);
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__scroll-indicator span {
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4), transparent);
  animation: scrollLine 2.2s ease infinite;
}

@keyframes scrollLine {
  0% {
    transform: scaleY(0);
    transform-origin: top;
  }

  50% {
    transform: scaleY(1);
    transform-origin: top;
  }

  51% {
    transform: scaleY(1);
    transform-origin: bottom;
  }

  100% {
    transform: scaleY(0);
    transform-origin: bottom;
  }
}

/* ===================================================
   STATS
   =================================================== */
.stats {
  background: var(--white);
  border-bottom: 1px solid var(--gray-light);
  padding: 3rem 0;
}

.stats__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.stats__item {
  flex: 1;
  min-width: 160px;
  text-align: center;
  padding: 1rem 2rem;
}

.stats__number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  color: var(--black);
  line-height: 1;
}

.stats__number--text {
  color: var(--green);
}

.stats__suffix {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--green);
  vertical-align: super;
}

.stats__label {
  font-size: 0.8rem;
  color: var(--gray);
  margin-top: 0.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 500;
}

.stats__divider {
  width: 1px;
  height: 60px;
  background: var(--gray-light);
  flex-shrink: 0;
}

/* ===================================================
   ABOUT / NOSOTROS
   =================================================== */
.about {
  background: var(--off-white);
  padding: var(--section-gap) 0;
  overflow: hidden;
  position: relative;
}

/* "2016" en outline tipográfico — fondo izquierdo */
.about::before {
  content: '2016';
  position: absolute;
  font-family: var(--font-display);
  font-size: clamp(10rem, 24vw, 22rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(107, 190, 49, 0.1);
  bottom: -1.5rem;
  left: -1rem;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

/* Cuadrícula de puntos — esquina superior derecha */
.about::after {
  content: '';
  position: absolute;
  top: 3rem;
  right: 3rem;
  width: 180px;
  height: 180px;
  background-image: radial-gradient(circle, rgba(107, 190, 49, 0.2) 1.5px, transparent 1.5px);
  background-size: 18px 18px;
  pointer-events: none;
  z-index: 0;
}

/* Grid principal: sidebar | cuerpo | visual */
.about__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: grid;
  grid-template-columns: 56px 1fr 400px;
  gap: 0 4rem;
  align-items: start;
  position: relative;
  z-index: 1;
}

/* ---- Sidebar vertical ---- */
.about__sidebar {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 0.5rem;
  height: 100%;
}

.about__sidebar-label {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--green);
  white-space: nowrap;
}

.about__sidebar-line {
  width: 1px;
  flex: 1;
  min-height: 3rem;
  margin: 1rem 0;
  background: linear-gradient(to bottom, var(--green) 0%, rgba(107, 190, 49, 0.15) 100%);
}

.about__sidebar-year {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--gray);
  white-space: nowrap;
}

/* ---- Cuerpo principal ---- */
.about__body {
  padding-top: 0.25rem;
}

.about__title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 5rem);
  font-weight: 800;
  line-height: 0.95;
  text-transform: uppercase;
  margin-bottom: 2rem;
  letter-spacing: -0.01em;
}

/* Línea en outline — contraste tipográfico editorial */
.about__title--outline {
  color: transparent;
  -webkit-text-stroke: 2px var(--black);
  display: block;
}

/* Pull quote estilo revista */
.about__quote {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  font-weight: 600;
  font-style: italic;
  color: var(--green-dark);
  border-left: 3px solid var(--green);
  padding: 0.9rem 1.25rem;
  margin: 2rem 0;
  background: rgba(107, 190, 49, 0.06);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  line-height: 1.6;
}

/* Dos columnas de texto — estilo editorial */
.about__text-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.about__text {
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ---- Panel visual ---- */
.about__visual {
  position: relative;
}

.about__image-wrap {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about__image-wrap img {
  width: 100%;
  height: 440px;
  object-fit: cover;
  display: block;
  transition: transform 0.7s ease;
}

.about__visual:hover .about__image-wrap img {
  transform: scale(1.03);
}

/* Degradado oscuro en la parte baja de la imagen */
.about__image-wrap::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 45%;
  background: linear-gradient(to top, rgba(10,10,10,0.55) 0%, transparent 100%);
  pointer-events: none;
}

/* Métricas debajo de la imagen */
.about__metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 1rem;
  border: 1px solid var(--gray-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--white);
}

.about__metric {
  padding: 1.4rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: background var(--transition);
}

.about__metric:first-child {
  border-right: 1px solid var(--gray-light);
}

.about__metric:hover {
  background: var(--off-white);
}

.about__metric-number {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--green);
  line-height: 1;
}

.about__metric-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1.4;
}

/* ===================================================
   SERVICES
   =================================================== */
.services {
  background: var(--white);
  padding: var(--section-gap) 0;
}

.services__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.services__header {
  max-width: 600px;
  margin-bottom: 4rem;
}

.services__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  text-transform: uppercase;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--gray-light);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.service-card {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--gray-light);
  position: relative;
  transition: background var(--transition), transform var(--transition);
  background: var(--white);
  overflow: hidden;
}

.service-card:last-child {
  border-right: none;
}

.service-card:hover {
  background: var(--off-white);
}

.service-card:hover .service-card__number {
  color: var(--green);
}

.service-card:hover .service-card__line {
  width: 100%;
}

.service-card__number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--gray-light);
  line-height: 1;
  margin-bottom: 1.5rem;
  display: block;
  transition: color var(--transition);
}

.service-card__icon {
  color: var(--green);
  margin-bottom: 1.25rem;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.service-card__text {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.75;
}

.service-card__line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--green);
  transition: width 0.5s ease;
}

/* ===================================================
   PORTFOLIO / PROYECTOS
   =================================================== */
.portfolio {
  background: var(--off-white);
  padding: var(--section-gap) 0;
}

.portfolio__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.portfolio__header {
  margin-bottom: 3.5rem;
  max-width: 640px;
}

.portfolio__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.portfolio__subtitle {
  color: var(--gray);
  font-size: 1rem;
  line-height: 1.7;
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(4, 230px);
  gap: 0.75rem;
}

/*
  Bento layout — 4 cols × 4 rows = 16 celdas exactas, sin huecos
  ┌──────────┬──────────┬──────────┬──────────┐
  │          │          │   img2   ───────────│  row 1
  │  img1    │  img1    ├──────────┬──────────┤
  │  (2×2)   │  (cont.) │   img3   │   img4   │  row 2
  ├──────────┼──────────┤  (1×2)   ├──────────┤
  │          │          │  (cont.) │   img5   │  row 3
  │  img6    │  img6    ├──────────┼──────────┤
  │  (2×2)   │  (cont.) │   img7   │   img8   │  row 4
  └──────────┴──────────┴──────────┴──────────┘
*/
.portfolio__item:nth-child(1) { grid-column: 1 / 3; grid-row: 1 / 3; }
.portfolio__item:nth-child(2) { grid-column: 3 / 5; grid-row: 1 / 2; }
.portfolio__item:nth-child(3) { grid-column: 3 / 4; grid-row: 2 / 4; }
.portfolio__item:nth-child(4) { grid-column: 4 / 5; grid-row: 2 / 3; }
.portfolio__item:nth-child(5) { grid-column: 4 / 5; grid-row: 3 / 4; }
.portfolio__item:nth-child(6) { grid-column: 1 / 3; grid-row: 3 / 5; }
.portfolio__item:nth-child(7) { grid-column: 3 / 4; grid-row: 4 / 5; }
.portfolio__item:nth-child(8) { grid-column: 4 / 5; grid-row: 4 / 5; }

.portfolio__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  cursor: pointer;
  background: var(--gray-light);
}

.portfolio__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.portfolio__item:hover img {
  transform: scale(1.07);
}

.portfolio__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 10, 10, 0.82) 0%, rgba(10, 10, 10, 0) 55%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity var(--transition);
}

.portfolio__item:hover .portfolio__overlay {
  opacity: 1;
}

.portfolio__overlay-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.4rem;
}

.portfolio__overlay-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  flex: 1;
  display: flex;
  align-items: flex-end;
  padding-bottom: 0.25rem;
}

.portfolio__overlay-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  backdrop-filter: blur(8px);
  transition: background var(--transition);
}

.portfolio__overlay-btn:hover {
  background: var(--green);
}

/* ===================================================
   LIGHTBOX
   =================================================== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.lightbox.open {
  opacity: 1;
  pointer-events: all;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  cursor: pointer;
}

.lightbox__content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 90vh;
  text-align: center;
  transform: scale(0.92);
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.lightbox.open .lightbox__content {
  transform: scale(1);
}

.lightbox__content img {
  max-width: 90vw;
  max-height: 80vh;
  border-radius: var(--radius-md);
  object-fit: contain;
  box-shadow: var(--shadow-lg);
}

.lightbox__caption {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  margin-top: 1rem;
  letter-spacing: 0.05em;
}

.lightbox__close {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 2;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  backdrop-filter: blur(8px);
}

.lightbox__close:hover {
  background: var(--green);
}

/* ===================================================
   VALUE / PROPUESTA
   =================================================== */
.value {
  background: var(--white);
  padding: var(--section-gap) 0;
}

.value__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.value__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 4rem;
}

.value__header .section-label {
  padding-left: 0;
  border-left: none;
  border-bottom: 3px solid var(--green);
  padding-bottom: 0.5rem;
}

.value__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.value__intro {
  color: var(--gray);
  font-size: 1rem;
  line-height: 1.8;
}

.value__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.value-card {
  padding: 2.5rem 2rem;
  background: var(--off-white);
  border-radius: var(--radius-md);
  border-top: 3px solid transparent;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.value-card:hover {
  border-top-color: var(--green);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.value-card__icon {
  color: var(--green);
  margin-bottom: 1.5rem;
}

.value-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.value-card__text {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.75;
}

/* ===================================================
   CONTACT
   =================================================== */
.contact {
  background: var(--off-white);
  padding: var(--section-gap) 0;
}

.contact__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 6rem;
  align-items: start;
}

.contact__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.contact__intro {
  color: var(--gray);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.contact__details li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-size: 0.95rem;
  color: var(--black);
  line-height: 1.6;
}

.contact__details li i {
  color: var(--green);
  font-size: 1.1rem;
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.contact__details a:hover {
  color: var(--green);
}

.contact__social {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--gray-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray);
  font-size: 0.9rem;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.social-link:hover {
  border-color: var(--green);
  color: var(--white);
  background: var(--green);
}

/* Form */
.contact__form-wrapper {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-md);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--black);
}

.form-group label span {
  color: var(--orange);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--gray-light);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--black);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B6B6B' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(107, 190, 49, 0.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #BCBAB4;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form__success {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: #f0fae7;
  border: 1px solid var(--green);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  color: var(--green-dark);
  font-size: 0.9rem;
}

.form__success i {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.form__success[hidden] {
  display: none;
}

/* ===================================================
   FOOTER
   =================================================== */
.footer {
  background: var(--brown);
  color: rgba(255, 255, 255, 0.65);
  padding: 5rem 0 2.5rem;
}

.footer__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 2rem;
}

.footer__logo {
  height: 44px;
  width: auto;
  object-fit: contain;
  margin-bottom: 1.25rem;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer__tagline {
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
}

.footer__nav {
  display: flex;
  gap: 4rem;
  justify-content: flex-end;
}

.footer__nav-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__nav-col h4 {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 0.25rem;
}

.footer__nav-col a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

.footer__nav-col a:hover {
  color: var(--green);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer__copy {
  font-size: 0.8rem;
}

.footer__social {
  display: flex;
  gap: 1rem;
}

.footer__social a {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer__social a:hover {
  color: var(--green);
}

/* ===================================================
   BACK TO TOP
   =================================================== */
.back-to-top {
  position: fixed;
  bottom: 2.25rem;
  right: 2.25rem;
  z-index: 900;
  width: 48px;
  height: 48px;
  border-radius: 2px;
  background: var(--green);
  color: var(--white);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition), background var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px rgba(107, 190, 49, 0.3);
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--green-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(107, 190, 49, 0.4);
}
.back-to-top i {
  transition: transform var(--transition);
}
.back-to-top:hover i {
  transform: translateY(-2px);
}

/* ===================================================
   RESPONSIVE — TABLET (≤ 1024px)
   =================================================== */
@media (max-width: 1024px) {
  :root {
    --section-gap: 80px;
  }

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

  .service-card {
    border-bottom: 1px solid var(--gray-light);
  }

  .service-card:nth-child(2) {
    border-right: none;
  }

  .service-card:nth-child(3) {
    border-bottom: none;
  }

  .service-card:nth-child(4) {
    border-right: none;
    border-bottom: none;
  }

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

  /* About tablet: ocultar sidebar, stack body+visual */
  .about__container {
    grid-template-columns: 1fr 1fr;
    gap: 0 3rem;
  }

  .about__sidebar {
    display: none;
  }

  .about__body {
    grid-column: 1 / 2;
  }

  .about__visual {
    grid-column: 2 / 3;
    grid-row: 1;
  }

  .about__image-wrap img {
    height: 360px;
  }

  .contact__container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .footer__top {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .footer__nav {
    justify-content: flex-start;
  }

  /* Portfolio tablet — 2 cols × 4 rows bento sin huecos */
  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(6, 200px);
  }
  .portfolio__item:nth-child(1) { grid-column: 1 / 3; grid-row: 1 / 3; }
  .portfolio__item:nth-child(2) { grid-column: 1 / 2; grid-row: 3 / 4; }
  .portfolio__item:nth-child(3) { grid-column: 2 / 3; grid-row: 3 / 5; }
  .portfolio__item:nth-child(4) { grid-column: 1 / 2; grid-row: 4 / 5; }
  .portfolio__item:nth-child(5) { grid-column: 1 / 3; grid-row: 5 / 6; }
  .portfolio__item:nth-child(6) { grid-column: 1 / 2; grid-row: 6 / 7; }
  .portfolio__item:nth-child(7) { grid-column: 2 / 3; grid-row: 5 / 6; }
  .portfolio__item:nth-child(8) { grid-column: 2 / 3; grid-row: 6 / 7; }
}

/* ===================================================
   RESPONSIVE — MOBILE (≤ 768px)
   =================================================== */
@media (max-width: 768px) {
  :root {
    --section-gap: 60px;
    --nav-height: 68px;
  }

  /* Navbar mobile */
  .navbar__hamburger {
    display: flex;
  }

  .navbar__divider {
    display: none;
  }

  /* Menú desplegable full-screen */
  .navbar__nav {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--off-white);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 1.5rem var(--container-pad) 2.5rem;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    overflow-y: auto;
    /* borde superior con acento verde */
    border-top: 2px solid var(--green);
  }

  .navbar__nav.open {
    transform: translateX(0);
  }

  /* Links: full-width, separador entre ítems */
  .navbar__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--black);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-shadow: none;
    padding: 1.2rem 0;
    border-bottom: 1px solid var(--gray-light);
    transition: color var(--transition), padding-left var(--transition);
  }

  /* Flecha decorativa en cada ítem */
  .navbar__link::after {
    content: '→';
    font-size: 0.9rem;
    color: var(--green);
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity var(--transition), transform var(--transition);
    /* override del pseudo-element de underline desktop */
    position: static;
    width: auto;
    height: auto;
    background: none;
    bottom: auto;
    left: auto;
  }

  .navbar__link:hover {
    color: var(--green);
    padding-left: 0.5rem;
  }

  .navbar__link:hover::after {
    opacity: 1;
    transform: translateX(0);
  }

  /* CTA: bloque completo al final */
  .navbar__cta {
    display: flex;
    justify-content: center;
    margin-left: 0;
    margin-top: 2rem;
    padding: 1rem 2rem;
    font-size: 0.9rem;
    border-radius: 2px;
    width: 100%;
  }

  /* Hero */
  .hero__title {
    font-size: clamp(3rem, 15vw, 5.5rem);
  }

  /* Stats */
  .stats__container {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .stats__divider {
    display: none;
  }

  .stats__item {
    min-width: 140px;
  }

  /* About mobile: columna única */
  .about__container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about__sidebar { display: none; }
  .about__body, .about__visual { grid-column: 1; }

  .about__title {
    font-size: clamp(2.4rem, 11vw, 3.5rem);
  }

  .about__text-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .about__image-wrap img {
    height: 280px;
  }

  /* Services */
  .services__grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    border-right: none;
    border-bottom: 1px solid var(--gray-light);
  }

  .service-card:last-child {
    border-bottom: none;
  }

  /* Portfolio mobile — 2 cols compacto sin huecos */
  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(5, 180px);
  }
  .portfolio__item:nth-child(1) { grid-column: 1 / 3; grid-row: 1 / 2; }
  .portfolio__item:nth-child(2) { grid-column: 1 / 2; grid-row: 2 / 3; }
  .portfolio__item:nth-child(3) { grid-column: 2 / 3; grid-row: 2 / 4; }
  .portfolio__item:nth-child(4) { grid-column: 1 / 2; grid-row: 3 / 4; }
  .portfolio__item:nth-child(5) { grid-column: 1 / 3; grid-row: 4 / 5; }
  .portfolio__item:nth-child(6) { grid-column: 1 / 2; grid-row: 5 / 6; }
  .portfolio__item:nth-child(7) { grid-column: 2 / 3; grid-row: 4 / 5; }
  .portfolio__item:nth-child(8) { grid-column: 2 / 3; grid-row: 5 / 6; }

  /* Value */
  .value__grid {
    grid-template-columns: 1fr;
  }

  .value__header .section-label {
    padding-left: 0;
  }

  /* Form */
  .form-row {
    grid-template-columns: 1fr;
  }

  .contact__form-wrapper {
    padding: 2rem 1.5rem;
  }

  /* Footer */
  .footer__nav {
    flex-wrap: wrap;
    gap: 2rem;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  /* Lightbox */
  .lightbox__content img {
    max-height: 70vh;
  }
}

@media (max-width: 480px) {
  /* Portfolio móvil — columna única */
  .portfolio__grid {
    grid-template-columns: 1fr;
    grid-template-rows: none;
    grid-auto-rows: 220px;
  }
  .portfolio__item:nth-child(n) {
    grid-column: auto;
    grid-row: auto;
  }

  .portfolio__overlay {
    opacity: 1;
  }
}