/* ============================
   FB Estudio — Estilos globales
   ============================ */

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

:root {
  --bg: #fafaf9;
  --fg: #1c1917;
  --accent: #d97706;
  --accent-dark: #b45309;
  --stone-50: #fafaf9;
  --stone-100: #f5f5f4;
  --stone-200: #e7e5e4;
  --stone-300: #d6d3d1;
  --stone-400: #a8a29e;
  --stone-500: #78716c;
  --stone-600: #57534e;
  --stone-700: #44403c;
  --stone-800: #292524;
  --stone-900: #1c1917;
  --amber-100: #fef3c7;
  --amber-500: #f59e0b;
  --amber-600: #d97706;
  --amber-700: #b45309;
  --green-500: #22c55e;
  --white: #ffffff;
  --max-w: 1280px;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background-color: rgba(217, 119, 6, 0.2);
}

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

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

ul {
  list-style: none;
}

main {
  flex: 1;
}

/* --- Container --- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }
}

/* ============================
   Navbar
   ============================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background 0.3s, box-shadow 0.3s;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .navbar-inner {
    padding: 1rem 2rem;
  }
}

.navbar-logo {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--white);
  transition: color 0.3s;
}

.navbar.scrolled .navbar-logo {
  color: var(--stone-900);
}

.navbar-links {
  display: none;
  align-items: center;
  gap: 2rem;
}

@media (min-width: 768px) {
  .navbar-links {
    display: flex;
  }
}

.navbar-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  transition: color 0.3s;
}

.navbar-links a:hover,
.navbar-links a.active {
  color: var(--amber-600);
}

.navbar.scrolled .navbar-links a {
  color: var(--stone-700);
}

.navbar.scrolled .navbar-links a:hover,
.navbar.scrolled .navbar-links a.active {
  color: var(--amber-600);
}

/* Hamburger */
.hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 55;
}

@media (min-width: 768px) {
  .hamburger {
    display: none;
  }
}

.hamburger-lines {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: transform 0.3s, opacity 0.3s, background 0.3s;
}

.navbar.scrolled .hamburger-line {
  background: var(--stone-900);
}

.hamburger.open .hamburger-line {
  background: var(--stone-900);
}

.hamburger.open .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger.open .hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: var(--white);
  padding: 5rem 1.5rem 2rem;
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
  z-index: 45;
  display: none;
}

.mobile-menu.open {
  display: block;
  animation: slideDown 0.2s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-menu a {
  display: block;
  padding: 0.75rem 0;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--stone-700);
  transition: color 0.2s;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--amber-600);
}

/* ============================
   Hero
   ============================ */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  overflow: hidden;
}

.hero.short {
  min-height: 60vh;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.7));
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 56rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  text-align: center;
}

.hero-content h1 {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--white);
}

@media (min-width: 768px) {
  .hero-content h1 {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .hero-content h1 {
    font-size: 3.75rem;
  }
}

.hero-content p {
  margin-top: 1.5rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.125rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
}

@media (min-width: 768px) {
  .hero-content p {
    font-size: 1.25rem;
  }
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2.5rem;
  padding: 0.875rem 2rem;
  border-radius: 9999px;
  background: var(--amber-600);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.hero-cta:hover {
  background: var(--amber-700);
  box-shadow: 0 15px 25px rgba(0, 0, 0, 0.25);
}

.hero-cta:active {
  transform: scale(0.95);
}

.hero-cta svg {
  width: 1rem;
  height: 1rem;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite ease-in-out;
}

.scroll-indicator svg {
  width: 1.5rem;
  height: 1.5rem;
  color: rgba(255, 255, 255, 0.6);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================
   Sections
   ============================ */
.section {
  padding: 6rem 0;
}

.section-dark {
  background: var(--stone-900);
  color: var(--white);
}

.section-white {
  background: var(--white);
}

.section-amber {
  background: var(--amber-600);
  color: var(--white);
}

.section-label {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber-600);
}

.section-dark .section-label {
  color: var(--amber-500);
}

.section-title {
  margin-top: 0.5rem;
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--stone-900);
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.section-dark .section-title {
  color: var(--white);
}

.section-subtitle {
  margin-top: 1rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  color: var(--stone-600);
}

.section-dark .section-subtitle {
  color: var(--stone-300);
}

.text-center {
  text-align: center;
}

/* ============================
   Service Cards
   ============================ */
.services-grid {
  display: grid;
  gap: 2rem;
  margin-top: 3.5rem;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-card {
  display: block;
  overflow: hidden;
  border-radius: 1rem;
  background: var(--white);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
  transition: box-shadow 0.3s;
}

.service-card:hover {
  box-shadow: 0 20px 25px rgba(0, 0, 0, 0.1);
}

.service-card-img {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.service-card:hover .service-card-img img {
  transform: scale(1.05);
}

.service-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
}

.service-card-img h3 {
  position: absolute;
  bottom: 1rem;
  left: 1.25rem;
  right: 1.25rem;
  z-index: 2;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--white);
}

@media (min-width: 1024px) {
  .service-card-img h3 {
    font-size: 1.5rem;
  }
}

.service-card-body {
  padding: 1.25rem;
}

.service-card-body p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--stone-600);
}

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--amber-600);
  transition: color 0.2s;
}

.service-card:hover .service-card-link {
  color: var(--amber-700);
}

.service-card-link svg {
  width: 1rem;
  height: 1rem;
  transition: transform 0.2s;
}

.service-card:hover .service-card-link svg {
  transform: translateX(4px);
}

/* ============================
   Gallery
   ============================ */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 3.5rem;
}

@media (min-width: 640px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .gallery-grid.cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .gallery-grid.cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.gallery-item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 0.5rem;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: transparent;
  transition: background 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-item:hover .gallery-item-overlay {
  background: rgba(0, 0, 0, 0.2);
}

.gallery-item-overlay svg {
  width: 2rem;
  height: 2rem;
  color: var(--white);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
  opacity: 0;
  transition: opacity 0.3s;
}

.gallery-item:hover .gallery-item-overlay svg {
  opacity: 1;
}

/* ============================
   Model Cards
   ============================ */
.models-grid {
  display: grid;
  gap: 2rem;
  margin-top: 0.5rem;
}

@media (min-width: 768px) {
  .models-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.model-card {
  background: var(--white);
  border-radius: 1rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s, box-shadow 0.3s;
}

.model-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.model-card-img {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.model-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.model-card:hover .model-card-img img {
  transform: scale(1.05);
}

.model-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: rgba(41, 37, 36, 0.8);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.75rem;
  border-radius: 0.35rem;
  backdrop-filter: blur(4px);
}

.model-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.model-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--stone-900);
  margin: 0 0 0.75rem;
}

.model-card-title span {
  font-weight: 400;
  color: var(--stone-500);
}

.model-specs {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.model-spec {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--stone-600);
}

.model-card-desc {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--stone-500);
  margin-bottom: 1.25rem;
  flex: 1;
}

.model-card-btn {
  display: inline-block;
  background: var(--amber-600);
  color: var(--white);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.65rem 1.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  text-align: center;
  transition: background 0.3s;
  align-self: flex-start;
}

.model-card-btn:hover {
  background: var(--amber-500);
}

/* ============================
   Model Detail Pages
   ============================ */
.modelo-header {
  padding-top: 7rem;
  padding-bottom: 2.5rem;
  background: var(--stone-900);
  text-align: center;
}

.modelo-back {
  display: inline-block;
  color: var(--stone-400);
  font-size: 0.875rem;
  text-decoration: none;
  margin-bottom: 1rem;
  transition: color 0.3s;
}

.modelo-back:hover {
  color: var(--amber-500);
}

.modelo-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  margin: 0;
}

@media (max-width: 767px) {
  .modelo-title {
    font-size: 1.75rem;
  }
}

.modelo-subtitle {
  margin-top: 0.5rem;
  color: var(--stone-400);
  font-size: 1rem;
  font-style: italic;
}

.modelo-detail-grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 768px) {
  .modelo-detail-grid {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }
}

.modelo-images {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.modelo-image-block {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.modelo-image-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white);
  background: var(--stone-800);
  border: 1px solid var(--stone-700);
  padding: 0.3rem 0.75rem;
  border-radius: 0.3rem;
  align-self: flex-start;
}

.modelo-image-wrapper {
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.modelo-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
}

.modelo-image-wrapper.plano {
  background: var(--white);
  padding: 1rem;
}

.modelo-image-wrapper.plano img {
  border-radius: 0.5rem;
}

/* Info panel */
.modelo-info {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  padding: 2rem;
}

@media (min-width: 768px) {
  .modelo-info {
    position: sticky;
    top: 6rem;
  }
}

.modelo-info-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 1rem;
}

.modelo-info-text {
  color: var(--stone-300);
  line-height: 1.7;
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.modelo-datos-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin: 1.5rem 0 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.modelo-specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}

.modelo-specs-table tr {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.modelo-specs-table td {
  padding: 0.6rem 0;
  font-size: 0.9rem;
}

.modelo-specs-table td:first-child {
  color: var(--stone-400);
  padding-right: 1rem;
  white-space: nowrap;
}

.modelo-specs-table td:last-child {
  color: var(--white);
  text-align: right;
}

.modelo-cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  background: var(--amber-600);
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 1.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  text-align: center;
  transition: background 0.3s;
}

.modelo-cta-btn:hover {
  background: var(--amber-500);
}

.modelo-cta-note {
  margin-top: 0.6rem;
  font-size: 0.8rem;
  color: var(--stone-500);
  text-align: center;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.92);
  padding: 1rem;
}

.lightbox.open {
  display: flex;
}

.lightbox-img {
  max-height: 85vh;
  max-width: 90vw;
  border-radius: 4px;
  object-fit: contain;
}

.lightbox-btn {
  position: absolute;
  z-index: 10;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
  border: none;
  border-radius: 9999px;
  padding: 0.5rem;
  color: var(--white);
  cursor: pointer;
  transition: background 0.2s;
}

.lightbox-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-btn svg {
  width: 1.5rem;
  height: 1.5rem;
}

.lightbox-close {
  top: 1rem;
  right: 1rem;
}

.lightbox-prev {
  left: 1rem;
}

.lightbox-next {
  right: 1rem;
}

.lightbox-counter {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
  border-radius: 9999px;
  padding: 0.25rem 1rem;
  font-size: 0.875rem;
  color: var(--white);
}

/* ============================
   About / Stats
   ============================ */
.about-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.about-text {
  line-height: 1.7;
}

.about-text.lead {
  margin-top: 1.5rem;
  font-size: 1.125rem;
  color: var(--stone-300);
}

.about-text.body {
  margin-top: 1rem;
  color: var(--stone-400);
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2rem;
  text-align: center;
}

.stat-number {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--amber-500);
}

.stat-label {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--stone-400);
}

.about-image {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 1rem;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================
   Units Grid (Quiénes Somos)
   ============================ */
.units-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .units-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.unit-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s, background 0.3s;
}

.unit-card:hover {
  border-color: var(--amber-500);
  background: rgba(255, 255, 255, 0.06);
}

.unit-card-header {
  margin-bottom: 1.25rem;
}

.unit-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--amber-500);
  background: rgba(245, 158, 11, 0.12);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  margin-bottom: 0.75rem;
}

.unit-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin: 0;
}

.unit-card-subtitle {
  margin-top: 0.35rem;
  font-size: 0.95rem;
  color: var(--stone-400);
}

.unit-card-desc {
  color: var(--stone-300);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.unit-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.unit-list li {
  position: relative;
  padding-left: 1.6rem;
  color: var(--stone-300);
  font-size: 0.95rem;
}

.unit-list li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--amber-500);
  font-weight: 700;
}

.unit-card-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--amber-500);
  text-decoration: none;
  transition: gap 0.3s;
}

.unit-card-link:hover {
  gap: 0.75rem;
}

/* ============================
   Benefits Grid
   ============================ */
.benefits-grid {
  display: grid;
  gap: 2rem;
  margin-top: 3.5rem;
}

@media (min-width: 640px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.benefit-card {
  padding: 1.5rem;
  border-radius: 0.75rem;
  border: 1px solid var(--stone-200);
  background: var(--white);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.3s;
}

.benefit-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.benefit-icon {
  font-size: 1.875rem;
}

.benefit-card h3 {
  margin-top: 1rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--stone-900);
}

.benefit-card p {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--stone-600);
}

/* ============================
   Categories Grid (Industrial)
   ============================ */
.categories-grid {
  display: grid;
  gap: 2rem;
  margin-top: 3.5rem;
}

@media (min-width: 768px) {
  .categories-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.category-card {
  overflow: hidden;
  border-radius: 1rem;
  border: 1px solid var(--stone-200);
  background: var(--white);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.3s;
}

.category-card:hover {
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.category-card-img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--stone-100);
}

.category-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.category-card:hover .category-card-img img {
  transform: scale(1.05);
}

.category-card-body {
  padding: 1.5rem;
}

.category-card-body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--stone-900);
}

.category-card-body p {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--stone-600);
}

/* ============================
   Highlights list
   ============================ */
.highlights-list {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.highlights-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.highlights-list svg {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  margin-top: 0.125rem;
  color: var(--amber-500);
}

.highlights-list span {
  color: var(--stone-300);
}

/* ============================
   CTA Section
   ============================ */
.cta-section {
  padding: 5rem 0;
  text-align: center;
}

.cta-section h2 {
  font-size: 1.875rem;
  font-weight: 700;
}

@media (min-width: 768px) {
  .cta-section h2 {
    font-size: 2.25rem;
  }
}

.cta-section p {
  margin-top: 1rem;
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.125rem;
}

.section-amber .cta-section p {
  color: var(--amber-100);
}

.section-dark .cta-section p {
  color: var(--stone-300);
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2rem;
  padding: 0.875rem 2rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.15);
  transition: all 0.2s;
}

.btn-whatsapp:hover {
  box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
}

.btn-whatsapp:active {
  transform: scale(0.95);
}

.btn-whatsapp svg {
  width: 1.25rem;
  height: 1.25rem;
}

.btn-whatsapp-white {
  background: var(--white);
  color: var(--amber-700);
}

.btn-whatsapp-white:hover {
  background: var(--stone-100);
}

.btn-whatsapp-amber {
  background: var(--amber-600);
  color: var(--white);
}

.btn-whatsapp-amber:hover {
  background: var(--amber-700);
}

/* ============================
   Footer
   ============================ */
.footer {
  background: var(--stone-900);
  color: var(--stone-300);
}

.footer-inner {
  padding: 4rem 0;
}

.footer-grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--white);
}

.footer-desc {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--stone-400);
}

.footer-location {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--stone-500);
}

.footer h4 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--stone-400);
}

.footer-nav {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-nav a {
  font-size: 0.875rem;
  color: var(--stone-400);
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--white);
}

.footer-contact {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-contact a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--stone-400);
  transition: color 0.2s;
}

.footer-contact a:hover {
  color: var(--white);
}

.footer-contact svg {
  width: 1rem;
  height: 1rem;
}

.footer-bottom {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--stone-800);
  text-align: center;
  font-size: 0.75rem;
  color: var(--stone-500);
}

/* ============================
   WhatsApp Floating Button
   ============================ */
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 9999px;
  background: var(--green-500);
  color: var(--white);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.15);
  transition: transform 0.2s, box-shadow 0.2s;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
}

.whatsapp-float:active {
  transform: scale(0.95);
}

.whatsapp-float svg {
  width: 1.75rem;
  height: 1.75rem;
}

/* ============================
   Scroll Animations
   ============================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.from-left {
  transform: translateX(40px);
}

.animate-on-scroll.from-right {
  transform: translateX(-40px);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0) translateX(0);
}

/* Hero animations */
.hero-content h1,
.hero-content p,
.hero-content .hero-cta {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease-out forwards;
}

.hero-content p {
  animation-delay: 0.2s;
}

.hero-content .hero-cta {
  animation-delay: 0.4s;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================
   Stats (home about section & industrial)
   ============================ */
.stats-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 3rem;
  margin-top: 2.5rem;
}

.stats-row .stat-number {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--amber-600);
}

.stats-row .stat-label {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--stone-500);
}

/* Intro text */
.intro-text {
  max-width: 48rem;
  margin: 0 auto;
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--stone-600);
}

/* Project subtitle */
.project-name {
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--stone-800);
}

.gallery-section + .gallery-section {
  margin-top: 4rem;
}