/* ============================================================
   INSEIN SRL — Sistema de Diseño CSS
   Paleta oficial: #78be44 | #6b7c82 | #fefefe | #0d0f12
   Tipografías: Barlow Condensed (display) + DM Sans (body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:ital,wght@0,400;0,600;0,700;0,800;0,900;1,700;1,800;1,900&family=DM+Sans:wght@300;400;500;600;700&display=swap');

/* ── Variables CSS ── */
:root {
  --green:       #78be44;
  --green-dim:   #5a8f33;
  --green-glow:  rgba(120, 190, 68, 0.15);
  --steel:       #6b7c82;
  --steel-light: #8c9da5;
  --white:       #fefefe;
  --dark:        #0d0f12;
  --dark-2:      #111518;
  --surface:     #161b22;
  --surface-2:   #1c2330;
  --border:      rgba(120, 190, 68, 0.12);
  --border-dim:  rgba(255, 255, 255, 0.06);

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

  --nav-h: 80px;
  --radius: 2px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--dark);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ── Utilidades globales ── */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 768px) { .container { padding: 0 40px; } }
@media (min-width: 1280px) { .container { padding: 0 60px; } }

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 20px;
}

.section-tag::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--green);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--green);
  color: var(--dark);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 16px 36px;
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--white);
  transform: translateX(-101%);
  transition: var(--transition);
}

.btn-primary:hover::after { transform: translateX(0); }
.btn-primary:hover { color: var(--dark); }
.btn-primary span { position: relative; z-index: 1; }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 16px 36px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.btn-outline:hover {
  border-color: var(--green);
  color: var(--green);
}

/* ── Línea decorativa industrial ── */
.industrial-line {
  height: 1px;
  background: linear-gradient(90deg, var(--green), transparent);
}

/* ── Noise texture overlay ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
  z-index: 9999;
}

/* ─────────────────────────────────────────────
   NAVBAR
───────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(13, 15, 18, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border-dim);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-logo img {
  height: 70px;
  width: auto;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nav-logo-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--white);
}

.nav-logo-name span { color: var(--green); }

.nav-logo-tagline {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--steel);
  margin-top: 3px;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 40px;
}

@media (min-width: 1024px) { .nav-links { display: flex; } }

.nav-link {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(254,254,254,0.6);
  transition: var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--green);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active { color: var(--white); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Selector de idioma */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--surface);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  padding: 4px;
}

.lang-btn {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 5px 10px;
  border-radius: 1px;
  color: var(--steel-light);
  transition: var(--transition);
}

.lang-btn.active {
  background: var(--green);
  color: var(--dark);
}

.nav-cta {
  display: none;
}

@media (min-width: 1024px) { .nav-cta { display: inline-flex; } }

/* Hamburger */
.nav-hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}

@media (min-width: 1024px) { .nav-hamburger { display: none; } }

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.nav-mobile {
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: rgba(13, 15, 18, 0.98);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border-dim);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transform: translateY(-110%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 999;
}

.nav-mobile.open { transform: translateY(0); }

.nav-mobile-link {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(254,254,254,0.7);
  padding: 8px 0;
  border-bottom: 1px solid var(--border-dim);
  transition: var(--transition);
}

.nav-mobile-link:hover { color: var(--green); padding-left: 12px; }

/* ─────────────────────────────────────────────
   HERO
───────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(30%) brightness(0.35);
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, rgba(13,15,18,0.95) 40%, transparent 100%),
    linear-gradient(to top, rgba(13,15,18,1) 0%, transparent 60%);
}

/* Grid overlay decorativo */
.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(120,190,68,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,190,68,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(to right, transparent, rgba(0,0,0,0.3) 30%, transparent 80%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  padding: 8px 20px;
  margin-bottom: 32px;
  animation: fadeInUp 0.8s ease both;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

.hero-badge span {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--green);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 8rem);
  font-weight: 900;
  line-height: 0.85;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 32px;
  animation: fadeInUp 0.8s ease 0.15s both;
}

.hero-title .line-accent {
  display: block;
  color: var(--green);
  font-style: italic;
  -webkit-text-stroke: 0;
}

.hero-title .line-outline {
  display: block;
  color: transparent;
  -webkit-text-stroke: 2px rgba(254,254,254,0.2);
}

.hero-desc {
  font-size: 1rem;
  font-weight: 300;
  color: rgba(254,254,254,0.65);
  max-width: 540px;
  margin-bottom: 48px;
  line-height: 1.7;
  border-left: 2px solid var(--green);
  padding-left: 20px;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 72px;
  animation: fadeInUp 0.8s ease 0.45s both;
}

/* Contadores estadísticos */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-dim);
  border: 1px solid var(--border-dim);
  max-width: 480px;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.stat-item {
  background: rgba(13,15,18,0.8);
  padding: 20px 24px;
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--green);
  line-height: 1;
  display: block;
}

.stat-label {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--steel);
  display: block;
  margin-top: 4px;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: fadeInUp 0.8s ease 0.9s both;
}

.hero-scroll span {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--steel);
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--green), transparent);
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(1); transform-origin: bottom; opacity: 0; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─────────────────────────────────────────────
   SECCIÓN SERVICIOS
───────────────────────────────────────────── */
.services {
  padding: 120px 0;
  background: var(--dark-2);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}

.section-header {
  margin-bottom: 80px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 0.9;
  letter-spacing: -0.01em;
}

.section-title .accent { color: var(--green); }
.section-title .italic { font-style: italic; }

.services-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 48px;
}

.tab-btn {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 12px 24px;
  border: 1px solid var(--border-dim);
  color: var(--steel-light);
  border-radius: var(--radius);
  transition: var(--transition);
}

.tab-btn:hover { border-color: var(--green); color: var(--green); }

.tab-btn.active {
  background: var(--green);
  border-color: var(--green);
  color: var(--dark);
}

.services-grid {
  display: none;
  grid-template-columns: 1fr;
  gap: 2px;
}

@media (min-width: 640px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }

.services-grid.active { display: grid; }

.service-card {
  position: relative;
  height: 420px;
  overflow: hidden;
  background: var(--surface);
  cursor: pointer;
}

.service-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(60%) brightness(0.4);
  transform: scale(1.05);
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1), filter 0.8s ease;
}

.service-card:hover img {
  transform: scale(1.12);
  filter: grayscale(0%) brightness(0.5);
}

.service-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,15,18,0.97) 30%, rgba(13,15,18,0.1) 100%);
  z-index: 1;
}

.service-card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px;
  z-index: 2;
}

.service-card-cat {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--green);
  display: block;
  margin-bottom: 8px;
}

.service-card-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1;
  margin-bottom: 12px;
}

.service-card-desc {
  font-size: 0.8rem;
  color: rgba(254,254,254,0.6);
  line-height: 1.6;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease, opacity 0.4s ease;
  opacity: 0;
}

.service-card:hover .service-card-desc {
  max-height: 100px;
  opacity: 1;
}

.service-card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  margin-top: 16px;
  opacity: 0;
  transform: translateX(-8px);
  transition: var(--transition);
}

.service-card:hover .service-card-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ─────────────────────────────────────────────
   SECCIÓN NOSOTROS / METODOLOGÍA
───────────────────────────────────────────── */
.about {
  padding: 120px 0;
  background: var(--dark);
  position: relative;
  overflow: hidden;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 80px;
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.about-visual {
  position: relative;
  aspect-ratio: 4/5;
  max-width: 480px;
}

.about-img-main {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(20%);
}

.about-img-accent {
  position: absolute;
  bottom: -32px;
  right: -32px;
  width: 55%;
  aspect-ratio: 1;
  object-fit: cover;
  border: 4px solid var(--dark);
  filter: grayscale(40%);
}

.about-stat-badge {
  position: absolute;
  top: 32px;
  right: -20px;
  background: var(--green);
  color: var(--dark);
  padding: 20px 24px;
  text-align: center;
}

.about-stat-badge .big { 
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  display: block;
  line-height: 1;
}

.about-stat-badge .small {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.methodology-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 48px;
}

.step {
  position: relative;
}

.step-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--green);
  opacity: 0.15;
  line-height: 1;
  display: block;
}

.step-title {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  margin-top: -18px;
  margin-bottom: 8px;
  position: relative;
}

.step-desc {
  font-size: 0.82rem;
  color: var(--steel-light);
  line-height: 1.6;
}

/* ─────────────────────────────────────────────
   GALERÍA
───────────────────────────────────────────── */
.gallery {
  padding: 120px 0;
  background: var(--dark-2);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  margin-top: 60px;
}

@media (min-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: auto auto;
  }
  .gallery-item:first-child { grid-column: span 2; grid-row: span 2; }
}

.gallery-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1;
  background: var(--surface);
  cursor: pointer;
}

.gallery-item:first-child { aspect-ratio: auto; }

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(40%) brightness(0.7);
  transition: transform 0.8s ease, filter 0.6s ease;
}

.gallery-item:hover img {
  transform: scale(1.06);
  filter: grayscale(0%) brightness(0.9);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(13,15,18,0);
  display: flex;
  align-items: flex-end;
  padding: 20px;
  transition: background var(--transition);
}

.gallery-item:hover .gallery-item-overlay { background: rgba(13,15,18,0.5); }

.gallery-item-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white);
  opacity: 0;
  transform: translateY(8px);
  transition: var(--transition);
}

.gallery-item:hover .gallery-item-label {
  opacity: 1;
  transform: translateY(0);
}

/* ─────────────────────────────────────────────
   CERTIFICACIONES
───────────────────────────────────────────── */
.certs {
  padding: 100px 0;
  background: var(--surface);
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  margin-top: 60px;
}

@media (min-width: 768px) { .certs-grid { grid-template-columns: repeat(4, 1fr); } }

.cert-card {
  background: var(--dark);
  padding: 40px 24px;
  text-align: center;
  border: 1px solid transparent;
  transition: var(--transition);
}

.cert-card:hover { border-color: var(--green); }

.cert-icon {
  width: 56px;
  height: 56px;
  background: var(--green-glow);
  border: 1px solid var(--green);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--green);
  letter-spacing: 0.05em;
}

.cert-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.cert-desc {
  font-size: 0.75rem;
  color: var(--steel-light);
  line-height: 1.5;
}

/* ─────────────────────────────────────────────
   BLOG
───────────────────────────────────────────── */
.blog {
  padding: 120px 0;
  background: var(--dark);
}

.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  margin-top: 60px;
}

@media (min-width: 768px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .blog-grid { grid-template-columns: repeat(3, 1fr); } }

.blog-card {
  background: var(--surface);
  overflow: hidden;
  border: 1px solid var(--border-dim);
  transition: border-color var(--transition), transform var(--transition);
}

.blog-card:hover { border-color: var(--border); transform: translateY(-4px); }

.blog-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.blog-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(30%);
  transition: transform 0.7s ease, filter 0.5s ease;
}

.blog-card:hover .blog-card-img img { transform: scale(1.05); filter: grayscale(0%); }

.blog-card-body { padding: 28px; }

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.blog-card-cat {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
}

.blog-card-date {
  font-size: 0.7rem;
  color: var(--steel);
}

.blog-card-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.1;
  margin-bottom: 12px;
  transition: color var(--transition);
}

.blog-card:hover .blog-card-title { color: var(--green); }

.blog-card-excerpt {
  font-size: 0.8rem;
  color: var(--steel-light);
  line-height: 1.6;
}

/* ─────────────────────────────────────────────
   CONTACTO
───────────────────────────────────────────── */
.contact {
  padding: 120px 0;
  background: var(--dark-2);
  position: relative;
}

.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 80px;
}

@media (min-width: 1024px) {
  .contact-grid { grid-template-columns: 1fr 1fr; align-items: start; }
}

.contact-info-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 0.9;
  margin-bottom: 28px;
}

.contact-info-title .accent { color: var(--green); font-style: italic; }

.contact-info-desc {
  font-size: 0.9rem;
  color: var(--steel-light);
  line-height: 1.7;
  margin-bottom: 48px;
  max-width: 440px;
}

.contact-data {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contact-data-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--surface);
  padding: 20px 24px;
  border: 1px solid var(--border-dim);
  transition: border-color var(--transition);
}

.contact-data-item:hover { border-color: var(--green); }

.contact-data-icon {
  width: 40px;
  height: 40px;
  background: var(--green-glow);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--green);
}

.contact-data-label {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--steel);
  display: block;
}

.contact-data-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  display: block;
}

/* Formulario */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--steel-light);
}

.form-control {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border-dim);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 14px 18px;
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}

.form-control::placeholder { color: var(--steel); }

.form-control:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}

textarea.form-control { resize: vertical; min-height: 140px; }

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%236c7f88'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-submit {
  margin-top: 8px;
  width: 100%;
  background: var(--green);
  color: var(--dark);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 18px;
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.form-submit:hover { background: var(--white); }
.form-submit:disabled { opacity: 0.7; cursor: not-allowed; }

.form-status {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px;
  min-height: 30px;
}

.form-status.success { color: var(--green); }
.form-status.error { color: #ff4d4d; }

/* ─────────────────────────────────────────────
   WHATSAPP FLOTANTE
───────────────────────────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 998;
  display: flex;
  align-items: center;
  gap: 12px;
  background: #25D366;
  color: var(--white);
  padding: 14px 20px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.35);
  transition: var(--transition);
  animation: floatIn 0.8s ease 1.2s both;
}

.whatsapp-float:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(37, 211, 102, 0.5); }

.whatsapp-float svg { width: 22px; height: 22px; }

.whatsapp-label { display: none; }
@media (min-width: 640px) { .whatsapp-label { display: block; } }

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

/* ─────────────────────────────────────────────
   FOOTER
───────────────────────────────────────────── */
.footer {
  background: var(--dark);
  border-top: 1px solid var(--border-dim);
  padding: 80px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  margin-bottom: 64px;
}

@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }

.footer-brand img { height: 40px; margin-bottom: 16px; }

.footer-brand-desc {
  font-size: 0.8rem;
  color: var(--steel);
  line-height: 1.7;
  max-width: 260px;
  margin-bottom: 24px;
}

.footer-col-title {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.82rem;
  color: var(--steel);
  transition: color var(--transition);
}

.footer-link:hover { color: var(--green); }

.footer-contact-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 12px;
}

.footer-contact-icon {
  color: var(--green);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-contact-text {
  font-size: 0.82rem;
  color: var(--steel);
  line-height: 1.5;
}

.footer-bottom {
  border-top: 1px solid var(--border-dim);
  padding-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}

.footer-copy {
  font-size: 0.72rem;
  color: var(--steel);
  letter-spacing: 0.05em;
}

.footer-policy {
  display: flex;
  gap: 24px;
}

.footer-policy a {
  font-size: 0.72rem;
  color: var(--steel);
  transition: color var(--transition);
}

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

/* ─────────────────────────────────────────────
   ANIMACIONES DE SCROLL (Intersection Observer)
───────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Delays escalonados */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ─────────────────────────────────────────────
   RESPONSIVE EXTRAS
───────────────────────────────────────────── */
@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); }
  .methodology-steps { grid-template-columns: 1fr; }
}