/* ============================================
   MAQUINADOS R&R — Industrial Dark Theme
   styles.css
   ============================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Barlow:wght@300;400;500;600;700&family=Barlow+Condensed:wght@400;500;600;700&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  --bg-primary:    #09090b;
  --bg-secondary:  #111113;
  --bg-card:       #18181b;
  --bg-card-hover: #1f1f23;
  --bg-elevated:   #27272a;

  --accent:        #dc2626;
  --accent-hover:  #ef4444;
  --accent-glow:   rgba(220, 38, 38, .25);
  --accent-subtle: rgba(220, 38, 38, .08);

  --text-primary:  #fafafa;
  --text-secondary:#a1a1aa;
  --text-muted:    #71717a;

  --border:        #27272a;
  --border-light:  #3f3f46;

  --font-display:  'Bebas Neue', sans-serif;
  --font-heading:  'Barlow Condensed', sans-serif;
  --font-body:     'Barlow', sans-serif;

  --nav-height:    72px;
  --section-pad:   100px;
  --max-width:     1280px;

  --radius-sm:     6px;
  --radius-md:     10px;
  --radius-lg:     16px;

  --transition:    .3s cubic-bezier(.4,0,.2,1);

  --logo-filter:   invert(1);
}

/* ---------- Light Mode ---------- */
[data-theme="light"] {
  --bg-primary:    #f5f5f4;
  --bg-secondary:  #ffffff;
  --bg-card:       #ffffff;
  --bg-card-hover: #fafaf9;
  --bg-elevated:   #e7e5e4;

  --accent:        #dc2626;
  --accent-hover:  #b91c1c;
  --accent-glow:   rgba(220, 38, 38, .15);
  --accent-subtle: rgba(220, 38, 38, .06);

  --text-primary:  #1c1917;
  --text-secondary:#57534e;
  --text-muted:    #78716c;

  --border:        #e7e5e4;
  --border-light:  #d6d3d1;

  --logo-filter:   none;
}

/* ---------- Theme Toggle Button ---------- */
.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  background: transparent;
  color: var(--text-secondary);
  font-size: 1.15rem;
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
  margin-left: 4px;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-subtle);
}
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="light"] .theme-toggle .icon-sun  { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* ---------- Light-mode overrides ---------- */
[data-theme="light"] .navbar {
  background: rgba(255,255,255,.75);
}
[data-theme="light"] .navbar.scrolled {
  background: rgba(255,255,255,.92);
}
[data-theme="light"] .hero-bg img {
  opacity: .70;
}
[data-theme="light"] .hero::before {
  background-image:
    linear-gradient(rgba(0,0,0,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,.04) 1px, transparent 1px);
}
[data-theme="light"] .hero-bg::after {
  background: linear-gradient(
    135deg,
    rgba(245,245,244,.95) 0%,
    rgba(245,245,244,.7) 50%,
    rgba(245,245,244,.85) 100%
  );
}
[data-theme="light"] .machine-card-overlay {
  background: linear-gradient(to top, rgba(0,0,0,.8) 0%, transparent 60%);
}
[data-theme="light"] .machine-card-overlay h4,
[data-theme="light"] .machine-card-overlay p {
  color: #fff;
}
[data-theme="light"] .service-card,
[data-theme="light"] .software-card,
[data-theme="light"] .product-item,
[data-theme="light"] .contact-form {
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
[data-theme="light"] .gallery-item::after {
  color: #1c1917;
}
[data-theme="light"] .scroll-line {
  background: linear-gradient(to bottom, var(--accent), rgba(0,0,0,.1));
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  width: 32px;
  height: 2px;
  background: var(--accent);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  letter-spacing: 2px;
  line-height: 1.05;
  margin-bottom: 20px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
  line-height: 1.7;
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .7s var(--transition), transform .7s var(--transition);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(9,9,11,.7);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.navbar.scrolled {
  border-bottom-color: var(--border);
  background: rgba(9,9,11,.92);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo img {
  height: 42px;
  width: auto;
  filter: var(--logo-filter);
}
.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 2px;
  white-space: nowrap;
}
.nav-logo-text span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: .95rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
  position: relative;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  font-family: var(--font-heading) !important;
  font-weight: 600 !important;
  font-size: .9rem !important;
  letter-spacing: 1.5px !important;
  text-transform: uppercase;
  background: var(--accent) !important;
  color: #fff !important;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition) !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
  background: var(--accent-hover) !important;
  transform: translateY(-1px);
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-primary);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .55;
  filter: grayscale(.6);
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(9,9,11,.95) 0%,
    rgba(9,9,11,.7) 50%,
    rgba(9,9,11,.85) 100%
  );
}

/* Grid overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--nav-height) + 60px);
  padding-bottom: 80px;
}

.hero-content {
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-subtle);
  border: 1px solid rgba(220,38,38,.2);
  padding: 8px 18px;
  border-radius: 100px;
  font-family: var(--font-heading);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
  animation: fadeInUp .8s ease-out;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: .95;
  letter-spacing: 3px;
  margin-bottom: 24px;
  animation: fadeInUp .8s ease-out .1s both;
}
.hero h1 span {
  display: block;
  background: linear-gradient(135deg, var(--accent), #f87171);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: 40px;
  animation: fadeInUp .8s ease-out .2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp .8s ease-out .3s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 30px var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 40px var(--accent-glow);
}
.btn-outline {
  border: 1px solid var(--border-light);
  color: var(--text-primary);
}
.btn-outline:hover {
  border-color: var(--text-secondary);
  background: rgba(255,255,255,.05);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
  animation: fadeInUp .8s ease-out .4s both;
}
.hero-stat h3 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  letter-spacing: 1px;
  color: var(--text-primary);
}
.hero-stat h3 span { color: var(--accent); }
.hero-stat p {
  font-family: var(--font-heading);
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: floatY 2.5s ease-in-out infinite;
}
.scroll-indicator span {
  font-family: var(--font-heading);
  font-size: .7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-muted);
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}

/* ============================================
   ABOUT
   ============================================ */
.about {
  padding: var(--section-pad) 0;
  background: var(--bg-secondary);
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text .section-title { margin-bottom: 24px; }
.about-text p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}
.about-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.about-feature:hover {
  border-color: var(--accent);
  background: var(--accent-subtle);
}
.about-feature .icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-subtle);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.about-feature span {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .85rem;
  letter-spacing: .5px;
  text-transform: uppercase;
}

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.about-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.about-image:hover img { transform: scale(1.03); }
.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

/* ============================================
   SOFTWARE & TECH
   ============================================ */
.software {
  padding: var(--section-pad) 0;
  background: var(--bg-primary);
  position: relative;
}

.software-header {
  text-align: center;
  margin-bottom: 64px;
}
.software-header .section-label::before { display: none; }
.software-header .section-label { justify-content: center; }
.software-header .section-desc {
  margin: 0 auto;
  text-align: center;
}

.software-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.software-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.software-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.software-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}
.software-card:hover::before { transform: scaleX(1); }

.software-card-logo {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1a1a1e;
  border-radius: 10px;
  padding: 10px 20px;
  width: 100%;
}
.software-card-logo img {
  max-height: 44px;
  max-width: 160px;
  object-fit: contain;
  mix-blend-mode: screen;
  filter: brightness(.95) contrast(1.05);
  transition: filter var(--transition);
}
.software-card:hover .software-card-logo img {
  filter: brightness(1.1) contrast(1.1);
}

/* Modo claro: mismo contenedor oscuro, screen elimina los fondos negros */
[data-theme="light"] .software-card-logo {
  background: #1a1a1e;
}
[data-theme="light"] .software-card-logo img {
  mix-blend-mode: screen;
  filter: brightness(1) contrast(1.05);
}
[data-theme="light"] .software-card:hover .software-card-logo img {
  filter: brightness(1.15) contrast(1.1);
}

.software-card h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.software-card p {
  color: var(--text-muted);
  font-size: .88rem;
  line-height: 1.6;
}

/* Brand carousel */
.brands-section {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  margin-top: 24px;
}
.brands-label {
  text-align: center;
  font-family: var(--font-heading);
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.brands-track-wrapper {
  overflow: hidden;
  background: #1a1a1e;
  border-radius: 12px;
  padding: 20px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}
.brands-track {
  display: flex;
  gap: 60px;
  align-items: center;
  animation: scrollBrands 30s linear infinite;
  width: max-content;
}
.brands-track img {
  height: 36px;
  width: auto;
  object-fit: contain;
  mix-blend-mode: screen;
  filter: grayscale(1) brightness(.65);
  opacity: .6;
  transition: all .4s ease;
}
.brands-track img:hover {
  filter: grayscale(0) brightness(1);
  opacity: 1;
  mix-blend-mode: screen;
}

@keyframes scrollBrands {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================
   SERVICES
   ============================================ */
.services {
  padding: var(--section-pad) 0;
  background: var(--bg-secondary);
}

.services-header {
  margin-bottom: 56px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s ease;
}
.service-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}
.service-card:hover::after { transform: scaleX(1); }

.service-icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  font-size: 1.4rem;
  color: var(--accent);
}

.service-card h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.service-card p {
  color: var(--text-muted);
  font-size: .92rem;
  line-height: 1.7;
}

/* ============================================
   MACHINERY (Gallery)
   ============================================ */
.machinery {
  padding: var(--section-pad) 0;
  background: var(--bg-primary);
}

.machinery-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
  flex-wrap: wrap;
  gap: 24px;
}

.machinery-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.filter-btn {
  font-family: var(--font-heading);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-muted);
  transition: all var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.machinery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.machine-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.machine-card:hover {
  border-color: var(--border-light);
  transform: translateY(-3px);
}
.machine-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.machine-card:hover img { transform: scale(1.06); }

.machine-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.85) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity var(--transition);
}
.machine-card:hover .machine-card-overlay { opacity: 1; }

.machine-card-overlay h4 {
  font-family: var(--font-heading);
  font-size: .95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.machine-card-overlay p {
  font-size: .82rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ============================================
   WORK GALLERY
   ============================================ */
.gallery {
  padding: var(--section-pad) 0;
  background: var(--bg-secondary);
}

.gallery-header {
  text-align: center;
  margin-bottom: 48px;
}
.gallery-header .section-label::before { display: none; }
.gallery-header .section-label { justify-content: center; }
.gallery-header .section-desc { margin: 0 auto; text-align: center; }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 1;
  cursor: pointer;
  border: 1px solid var(--border);
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease, filter .3s ease;
}
.gallery-item:hover img {
  transform: scale(1.08);
  filter: brightness(1.1);
}
.gallery-item::after {
  content: '⤢';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%) scale(0);
  font-size: 2rem;
  color: #fff;
  text-shadow: 0 2px 8px rgba(0,0,0,.5);
  transition: transform var(--transition);
}
.gallery-item:hover::after { transform: translate(-50%,-50%) scale(1); }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,.95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
  backdrop-filter: blur(10px);
}
.lightbox.active { opacity: 1; pointer-events: all; }
.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}
.lightbox-close {
  position: absolute;
  top: 24px; right: 24px;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: #fff;
  background: rgba(255,255,255,.1);
  border-radius: 50%;
  transition: background var(--transition);
}
.lightbox-close:hover { background: rgba(255,255,255,.2); }
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: #fff;
  background: rgba(255,255,255,.08);
  border-radius: 50%;
  transition: background var(--transition);
}
.lightbox-nav:hover { background: rgba(255,255,255,.18); }
.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }

/* ============================================
   PRODUCTS / PARTES FABRICADAS
   ============================================ */
.products {
  padding: var(--section-pad) 0;
  background: var(--bg-primary);
}

.products-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 48px;
}
.product-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}
.product-item:hover {
  border-color: var(--accent);
  background: var(--accent-subtle);
  transform: translateY(-3px);
}
.product-item .product-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.product-item h4 {
  font-family: var(--font-heading);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
  padding: var(--section-pad) 0;
  background: var(--bg-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.contact-info h3 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.contact-info > p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.contact-detail {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-detail .icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-subtle);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-detail-text h5 {
  font-family: var(--font-heading);
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.contact-detail-text p {
  color: var(--text-secondary);
  font-size: .95rem;
}

/* Contact form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.contact-form h4 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: .95rem;
  transition: border-color var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}
.form-submit:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-brand p {
  color: var(--text-muted);
  font-size: .92rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h5 {
  font-family: var(--font-heading);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.footer-col a {
  display: block;
  color: var(--text-muted);
  font-size: .92rem;
  padding: 5px 0;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom p {
  color: var(--text-muted);
  font-size: .85rem;
}

/* ============================================
   MOBILE MENU
   ============================================ */
.mobile-menu {
  position: fixed;
  top: 0; right: -100%;
  width: min(85vw, 380px);
  height: 100vh;
  background: var(--bg-secondary);
  z-index: 1001;
  padding: 80px 32px 32px;
  transition: right .4s ease;
  border-left: 1px solid var(--border);
}
.mobile-menu.open { right: 0; }
.mobile-menu a {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  transition: color var(--transition);
}
.mobile-menu a:hover { color: var(--accent); }
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.mobile-overlay.open { opacity: 1; pointer-events: all; }

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%      { opacity: .3; }
}
@keyframes floatY {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(8px); }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .software-grid       { grid-template-columns: repeat(2, 1fr); }
  .services-grid        { grid-template-columns: repeat(2, 1fr); }
  .products-list        { grid-template-columns: repeat(2, 1fr); }
  .footer-top           { grid-template-columns: 1fr 1fr; }
  .about-grid           { grid-template-columns: 1fr; }
  .contact-grid         { grid-template-columns: 1fr; }
  .hero-stats           { gap: 32px; }
}

@media (max-width: 768px) {
  :root {
    --section-pad: 64px;
    --nav-height: 64px;
  }

  .nav-links   { display: none; }
  .nav-toggle  { display: flex; }

  .hero h1 { font-size: clamp(2.4rem, 10vw, 4rem); }
  .hero-stats { flex-direction: column; gap: 20px; }

  .software-grid  { grid-template-columns: 1fr; }
  .services-grid  { grid-template-columns: 1fr; }
  .gallery-grid   { grid-template-columns: repeat(2, 1fr); }
  .products-list  { grid-template-columns: repeat(2, 1fr); }
  .machinery-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row       { grid-template-columns: 1fr; }
  .footer-top     { grid-template-columns: 1fr; }

  .contact-form { padding: 28px 20px; }

  .about-features { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-actions   { flex-direction: column; }
  .btn            { width: 100%; justify-content: center; }
  .gallery-grid   { grid-template-columns: 1fr 1fr; gap: 8px; }
  .machinery-grid { grid-template-columns: 1fr; }
  .products-list  { grid-template-columns: 1fr; }
}