/* ==========================================================================
   HEAVY EQUIPMENT VISION ARGENTINA S.A. (heavyequipmentvideo.com)
   Sistemas de Visión Computacional & Telemetría Óptica para Maquinaria Pesada
   Design System: Industrial Heavy Duty & Optical Telematics
   ========================================================================== */

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

:root {
  --bg-main: #080D14;
  --bg-card: #0F1724;
  --bg-card-hover: #162032;
  --bg-input: #0B111A;
  --border-color: #1E293B;
  --border-focus: #38BDF8;
  
  --amber-primary: #F59E0B;
  --amber-dark: #D97706;
  --amber-glow: rgba(245, 158, 11, 0.2);
  --cyan-optical: #06B6D4;
  --blue-telematics: #0284C7;
  
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  
  --font-heading: 'Barlow', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Space Mono', monospace;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  --container-max: 1240px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-main);
  color: var(--text-primary);
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  background-color: var(--bg-main);
  color: var(--text-primary);
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(245, 158, 11, 0.05) 0%, transparent 60%),
    linear-gradient(to right, rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* ---------------- HUD Telemetry Bar ---------------- */
.hud-bar {
  background: #05080E;
  border-bottom: 1px solid #162032;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 6px 0;
  letter-spacing: 0.03em;
}

.hud-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.hud-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10B981;
  box-shadow: 0 0 8px #10B981;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.9); }
}

.hud-coords {
  color: var(--amber-primary);
}

.hud-contact {
  display: flex;
  gap: 1.5rem;
}

.hud-contact a:hover {
  color: var(--text-primary);
}

/* ---------------- Main Header / Navigation ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 13, 20, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

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

.logo-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.logo-brand svg, .logo-brand img {
  width: 36px;
  height: 36px;
}

.logo-brand span.highlight {
  color: var(--amber-primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  padding: 0.4rem 0.2rem;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--amber-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--amber-primary);
}

.nav-cta {
  background: var(--amber-primary);
  color: #000000;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.nav-cta:hover {
  background: var(--amber-dark);
  box-shadow: 0 0 15px var(--amber-glow);
  color: #000;
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* ---------------- Layout & Containers ---------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

.section {
  padding: 5rem 0;
  position: relative;
}

.section-darker {
  background-color: #05080E;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  margin-bottom: 3.5rem;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--amber-primary);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 720px;
}

/* ---------------- Hero Section ---------------- */
.hero {
  padding: 4.5rem 0 5.5rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.hero-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid #1E293B;
  background: #0B111A;
  color: var(--text-secondary);
}

.hero-badge.highlight {
  border-color: rgba(245, 158, 11, 0.4);
  color: var(--amber-primary);
  background: rgba(245, 158, 11, 0.08);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.25rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: 1.5rem;
}

.hero-title span.accent {
  color: var(--amber-primary);
}

.hero-lead {
  font-size: 1.2rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.btn-primary {
  background: var(--amber-primary);
  color: #000;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.9rem 2rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--amber-dark);
  box-shadow: 0 0 20px var(--amber-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #0F1724;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.9rem 1.8rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-secondary:hover {
  background: #162032;
  border-color: var(--text-secondary);
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.stat-item .stat-num {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-item .stat-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.hero-media-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 40px rgba(0,0,0,0.6);
}

.hero-media-wrapper img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.telemetry-overlay {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #00FF66;
  background: rgba(0, 0, 0, 0.7);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 255, 102, 0.3);
  backdrop-filter: blur(4px);
}

.corner-brackets::before, .corner-brackets::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--amber-primary);
  pointer-events: none;
}
.corner-brackets::before {
  top: 8px; left: 8px;
  border-top: 2px solid var(--amber-primary);
  border-left: 2px solid var(--amber-primary);
}
.corner-brackets::after {
  bottom: 8px; right: 8px;
  border-bottom: 2px solid var(--amber-primary);
  border-right: 2px solid var(--amber-primary);
}

/* ---------------- Cards & Grid ---------------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(245, 158, 11, 0.4);
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.4);
}

.card-img-wrapper {
  margin: -2rem -2rem 1.5rem -2rem;
  border-top-left-radius: var(--radius-md);
  border-top-right-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  aspect-ratio: 16/10;
}

.card-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.card:hover .card-img-wrapper img {
  transform: scale(1.04);
}

.card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(8, 13, 20, 0.85);
  border: 1px solid var(--border-color);
  color: var(--amber-primary);
  backdrop-filter: blur(4px);
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.card-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-specs {
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.card-specs .spec-row {
  display: flex;
  justify-content: space-between;
}

.card-specs .spec-val {
  color: var(--text-primary);
  font-weight: 700;
}

/* ---------------- Interactive Simulator Module ---------------- */
.simulator-box {
  background: #0B111A;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.sim-selectors {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.sim-btn {
  background: #101724;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sim-btn:hover, .sim-btn.active {
  background: var(--amber-primary);
  color: #000;
  border-color: var(--amber-primary);
  box-shadow: 0 0 15px var(--amber-glow);
}

.sim-display-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.sim-visual {
  background: #05080E;
  border: 1px solid #1E293B;
  border-radius: var(--radius-sm);
  padding: 2rem;
  text-align: center;
  position: relative;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.sim-metrics {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.metric-bar-group label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.metric-bar-group .bar-track {
  width: 100%;
  height: 8px;
  background: #162032;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.metric-bar-group .bar-fill {
  height: 100%;
  background: var(--amber-primary);
  border-radius: var(--radius-full);
  transition: width 0.5s ease;
}

.metric-bar-group .bar-fill.cyan {
  background: var(--cyan-optical);
}

/* ---------------- Table Specifications ---------------- */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-card);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.spec-table th {
  background: #0B111A;
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-weight: 800;
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--amber-primary);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

.spec-table td {
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid #162032;
  color: var(--text-secondary);
}

.spec-table tr:last-child td {
  border-bottom: none;
}

.spec-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
}

/* ---------------- Forms ---------------- */
.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.form-control {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--amber-primary);
  box-shadow: 0 0 10px var(--amber-glow);
}

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

/* ---------------- Legal Pages Content ---------------- */
.legal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 3rem;
  color: #CBD5E1;
  line-height: 1.8;
}

.legal-content h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-primary);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.legal-content h2:first-of-type {
  margin-top: 0;
}

.legal-content h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--amber-primary);
  margin: 1.5rem 0 0.5rem;
}

.legal-content p, .legal-content ul {
  margin-bottom: 1.25rem;
  font-size: 1rem;
}

.legal-content ul {
  padding-left: 1.5rem;
}

.legal-content li {
  margin-bottom: 0.5rem;
}

.legal-callout {
  background: rgba(245, 158, 11, 0.06);
  border-left: 4px solid var(--amber-primary);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5rem 0;
}

/* ---------------- Footer ---------------- */
.site-footer {
  margin-top: auto;
  background: #04060A;
  border-top: 1px solid var(--border-color);
  padding: 4.5rem 0 2rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a:hover {
  color: var(--amber-primary);
}

.footer-bottom {
  border-top: 1px solid #162032;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.afip-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: #0B111A;
  border: 1px solid var(--border-color);
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* ---------------- Modal ---------------- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-overlay.active {
  display: flex;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  max-width: 540px;
  width: 100%;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ---------------- Responsive ---------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .sim-display-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hud-contact {
    display: none;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #080D14;
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
  }
  .main-nav.open {
    display: flex;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero-title {
    font-size: 2.4rem;
  }
  .grid-3, .grid-2, .grid-4 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}