/* ==========================================================================
   ECU Connection — Cyber Laboratory Theme
   Professional, Technical, Precision, Trustworthy
   ========================================================================== */

/* ---- CSS Custom Properties (Design Tokens) ---- */
:root {
  /* Core Background */
  --bg-deep: #04020d;
  --bg-mid: #0a0716;
  --bg-surface: #0d0a1b;
  --bg-card: #110e22;
  --bg-elevated: #16122a;

  /* Neon Palette */
  --neon-magenta: #ff00b7;
  --neon-magenta-dim: #cc0092;
  --neon-blue: #3b00ff;
  --neon-blue-dim: #2e00cc;
  --neon-cyan: #00d2ff;
  --neon-cyan-dim: #00a8cc;

  /* Semantic */
  --text-primary: #f0efff;
  --text-secondary: #b8b3d1;
  --text-muted: #7a7599;
  --text-on-neon: #04020d;

  --border-subtle: #2a2444;
  --border-glow: #3b00ff;

  /* Shadows & Glows */
  --glow-magenta: 0 0 20px #ff00b7, 0 0 40px #ff00b7, 0 0 60px #ff00b7;
  --glow-blue: 0 0 15px #3b00ff, 0 0 30px #3b00ff;
  --glow-cyan: 0 0 10px #00d2ff, 0 0 20px #00d2ff, 0 0 30px #00d2ff;
  --glow-card: 0 4px 24px rgba(59, 0, 255, 0.15), 0 0 0 1px rgba(59, 0, 255, 0.1);

  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Typography */
  --font-display: 'Space Grotesk', 'Syne', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-body: 'Space Grotesk', system-ui, sans-serif;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 2rem;
  --fs-4xl: 2.5rem;
  --fs-5xl: 3.5rem;
  --fs-6xl: 5rem;

  /* Layout */
  --container-max: 1200px;
  --container-pad: 1.5rem;
  --header-height: 72px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-index */
  --z-bg: -1;
  --z-base: 1;
  --z-nav: 100;
  --z-modal: 200;
  --z-toast: 300;
}

/* ---- Reduced Motion ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-deep);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ---- Global Background: Radial Deep Indigo to Midnight ---- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: var(--z-bg);
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, #1a0a3a 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 90%, #0d0033 0%, transparent 55%),
    radial-gradient(ellipse 100% 100% at 50% 50%, #0d0a1b 0%, #04020d 100%);
  pointer-events: none;
}

/* ---- Circuit Frame SVG (Left & Bottom Edges) ---- */
.circuit-frame {
  position: fixed;
  inset: 0;
  z-index: var(--z-bg);
  pointer-events: none;
  overflow: hidden;
}

.circuit-frame svg {
  width: 100%;
  height: 100%;
  display: block;
}

.circuit-trace {
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 4px currentColor);
  opacity: 0.6;
  animation: trace-pulse 4s ease-in-out infinite alternate;
}

.circuit-trace--magenta { color: var(--neon-magenta); }
.circuit-trace--blue { color: var(--neon-blue); }
.circuit-trace--cyan { color: var(--neon-cyan); }

.circuit-node {
  fill: var(--neon-cyan);
  filter: drop-shadow(0 0 6px var(--neon-cyan)) drop-shadow(0 0 12px var(--neon-cyan));
  animation: node-blink 3s ease-in-out infinite alternate;
}

@keyframes trace-pulse {
  0% { opacity: 0.4; stroke-width: 1; }
  100% { opacity: 0.8; stroke-width: 2; }
}

@keyframes node-blink {
  0% { opacity: 0.6; r: 3; }
  100% { opacity: 1; r: 5; }
}

/* ---- Focus Visible ---- */
:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---- Selection ---- */
::selection {
  background: var(--neon-magenta);
  color: var(--text-on-neon);
}

/* ---- Skip Link ---- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--neon-cyan);
  color: var(--text-on-neon);
  font-weight: 600;
  border-radius: 4px;
  z-index: var(--z-toast);
  transition: top var(--transition-fast);
}
.skip-link:focus { top: var(--space-md); }

/* ==========================================================================
   LAYOUT COMPONENTS
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section {
  padding: var(--space-4xl) 0;
  position: relative;
  z-index: var(--z-base);
}

.section--compact { padding: var(--space-2xl) 0; }
.section--hero { padding: calc(var(--space-4xl) + var(--header-height)) 0 var(--space-4xl); }

/* ---- Grid Utilities ---- */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* ---- Flex Utilities ---- */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { flex-direction: column; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--fs-5xl); }
h2 { font-size: var(--fs-4xl); }
h3 { font-size: var(--fs-3xl); }
h4 { font-size: var(--fs-2xl); }
h5 { font-size: var(--fs-xl); }
h6 { font-size: var(--fs-lg); }

@media (max-width: 768px) {
  h1 { font-size: var(--fs-4xl); }
  h2 { font-size: var(--fs-3xl); }
  h3 { font-size: var(--fs-2xl); }
  h4 { font-size: var(--fs-xl); }
}

p { color: var(--text-secondary); margin-bottom: var(--space-md); }
p:last-child { margin-bottom: 0; }

.lead { font-size: var(--fs-lg); color: var(--text-primary); font-weight: 400; }

.text-mono { font-family: var(--font-mono); }
.text-gradient {
  background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-magenta) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gradient-blue {
  background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.small { font-size: var(--fs-sm); color: var(--text-muted); }
.muted { color: var(--text-muted); }

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Primary — Neon Cyan */
.btn--primary {
  background: linear-gradient(135deg, var(--neon-cyan) 0%, #00b8e6 100%);
  color: var(--text-on-neon);
  box-shadow: var(--glow-cyan);
}
.btn--primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 0 30px var(--neon-cyan), 0 0 60px var(--neon-cyan);
}
.btn--primary:active:not(:disabled) { transform: translateY(0); }

/* Secondary — Neon Magenta */
.btn--secondary {
  background: linear-gradient(135deg, var(--neon-magenta) 0%, var(--neon-magenta-dim) 100%);
  color: var(--text-on-neon);
  box-shadow: var(--glow-magenta);
}
.btn--secondary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 0 30px var(--neon-magenta), 0 0 60px var(--neon-magenta);
}

/* Outline — Ghost */
.btn--outline {
  background: transparent;
  color: var(--neon-cyan);
  border: 1px solid var(--neon-cyan);
  box-shadow: inset 0 0 20px rgba(0, 210, 255, 0.1);
}
.btn--outline:hover:not(:disabled) {
  background: rgba(0, 210, 255, 0.1);
  box-shadow: var(--glow-cyan);
}

/* WhatsApp Green */
.btn--whatsapp {
  background: linear-gradient(135deg, #25d366 0%, #1ebe5d 100%);
  color: white;
  box-shadow: 0 0 20px #25d366, 0 0 40px #25d366;
}
.btn--whatsapp:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 0 30px #25d366, 0 0 60px #25d366;
}

/* Button Sizes */
.btn--sm { padding: var(--space-sm) var(--space-md); font-size: var(--fs-sm); }
.btn--lg { padding: var(--space-lg) var(--space-2xl); font-size: var(--fs-lg); }

/* ==========================================================================
   CARDS
   ========================================================================== */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: var(--space-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-cyan), var(--neon-magenta));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: var(--glow-card);
}
.card:hover::before { opacity: 1; }

.card--glow { box-shadow: var(--glow-card); }

/* ==========================================================================
   HEADER / NAVIGATION
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: var(--z-nav);
  background: rgba(4, 2, 13, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-base);
}

.header--scrolled {
  background: rgba(4, 2, 13, 0.98);
  box-shadow: 0 4px 32px rgba(59, 0, 255, 0.1);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

/* Logo */
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-xl);
  letter-spacing: -0.01em;
  transition: color var(--transition-fast);
}
.nav__logo:hover { color: var(--neon-cyan); }
.nav__logo-icon {
  width: 40px;
  height: 40px;
  background: url('../images/logo.jpeg') center/contain no-repeat;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-on-neon);
  font-weight: 800;
  font-size: var(--fs-lg);
  box-shadow: var(--glow-blue);
}

/* Desktop Nav */
.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
}
.nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--fs-sm);
  border-radius: 8px;
  transition: all var(--transition-fast);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--neon-cyan);
  transition: all var(--transition-base);
  transform: translateX(-50%);
}
.nav__link:hover,
.nav__link--active {
  color: var(--neon-cyan);
  background: rgba(0, 210, 255, 0.08);
}
.nav__link:hover::after,
.nav__link--active::after { width: 80%; }

/* Nav Actions */
.nav__actions { display: flex; align-items: center; gap: var(--space-md); }
.nav__phone {
  display: none;
  align-items: center;
  gap: var(--space-xs);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: color var(--transition-fast);
}
.nav__phone:hover { color: var(--neon-cyan); }
.nav__phone i { color: var(--neon-cyan); }

/* Mobile Menu Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: var(--z-nav);
}
.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Mobile Nav Overlay */
@media (max-width: 768px) {
  .nav__toggle { display: flex; }
  .nav__phone { display: flex; }

  .nav__list {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 80%;
    max-width: 320px;
    background: var(--bg-surface);
    border-left: 1px solid var(--border-subtle);
    flex-direction: column;
    align-items: stretch;
    padding: calc(var(--header-height) + var(--space-xl)) var(--space-lg) var(--space-xl);
    gap: var(--space-xs);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    box-shadow: -8px 0 32px rgba(0,0,0,0.4);
  }
  .nav__list--open { transform: translateX(0); }
  .nav__link { padding: var(--space-md); font-size: var(--fs-base); }
  .nav__link::after { display: none; }

  .nav__cta { width: 100%; margin-top: var(--space-md); }
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
}

.hero__content {
  max-width: 720px;
  position: relative;
  z-index: var(--z-base);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: rgba(59, 0, 255, 0.15);
  border: 1px solid var(--neon-blue);
  border-radius: 100px;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--neon-cyan);
  margin-bottom: var(--space-lg);
  animation: badge-pulse 3s ease-in-out infinite;
}

@keyframes badge-pulse {
  0%, 100% { box-shadow: 0 0 10px rgba(59, 0, 255, 0.3); }
  50% { box-shadow: 0 0 20px rgba(0, 210, 255, 0.5); }
}

.hero__title {
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.hero__title-line {
  display: block;
  animation: title-reveal 0.8s ease-out forwards;
  opacity: 0;
  transform: translateY(20px);
}
.hero__title-line:nth-child(1) { animation-delay: 0.1s; }
.hero__title-line:nth-child(2) { animation-delay: 0.2s; }
.hero__title-line:nth-child(3) { animation-delay: 0.3s; }

@keyframes title-reveal {
  to { opacity: 1; transform: translateY(0); }
}

.hero__description {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 560px;
  animation: fade-up 0.8s ease-out 0.4s forwards;
  opacity: 0;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  animation: fade-up 0.8s ease-out 0.5s forwards;
  opacity: 0;
}

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

/* Hero Stats */
.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
  animation: fade-up 0.8s ease-out 0.6s forwards;
  opacity: 0;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.stat__value {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 700;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat__label { font-size: var(--fs-sm); color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* ==========================================================================
   SECTION HEADERS
   ========================================================================== */

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-3xl);
}

.section__tag {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--neon-magenta);
  margin-bottom: var(--space-md);
}

.section__title { margin-bottom: var(--space-md); }
.section__description { color: var(--text-secondary); font-size: var(--fs-lg); }

/* ==========================================================================
   SERVICE CARDS
   ========================================================================== */

.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: var(--fs-2xl);
  color: var(--text-on-neon);
  box-shadow: var(--glow-blue);
}

.service-card__icon--magenta { background: linear-gradient(135deg, var(--neon-magenta), var(--neon-magenta-dim)); box-shadow: var(--glow-magenta); }
.service-card__icon--blue { background: linear-gradient(135deg, var(--neon-blue), var(--neon-blue-dim)); box-shadow: var(--glow-blue); }
.service-card__icon--cyan { background: linear-gradient(135deg, var(--neon-cyan), #00b8e6)); box-shadow: var(--glow-cyan); }
.service-card__icon--purple { background: linear-gradient(135deg, #8b5cf6, #7c3aed); box-shadow: 0 0 20px #8b5cf6, 0 0 40px #8b5cf6; }
.service-card__icon--orange { background: linear-gradient(135deg, #f97316, #ea580c); box-shadow: 0 0 20px #f97316, 0 0 40px #f97316; }
.service-card__icon--green { background: linear-gradient(135deg, #22c55e, #16a34a); box-shadow: 0 0 20px #22c55e, 0 0 40px #22c55e; }

.service-card__title { font-size: var(--fs-xl); margin-bottom: var(--space-sm); }
.service-card__description { color: var(--text-secondary); margin-bottom: var(--space-lg); flex: 1; }
.service-card__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
  padding-left: var(--space-md);
}
.service-card__features li {
  position: relative;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}
.service-card__features li::before {
  content: '';
  position: absolute;
  left: -1rem;
  top: 0.5rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}
.service-card__cta { margin-top: auto; width: 100%; }

/* ==========================================================================
   ABOUT / FEATURES
   ========================================================================== */

.feature-card {
  text-align: center;
  padding: var(--space-xl);
}

.feature-card__icon {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: var(--fs-3xl);
  color: var(--text-on-neon);
  box-shadow: var(--glow-blue);
}

.feature-card__title { margin-bottom: var(--space-sm); }
.feature-card__description { color: var(--text-secondary); }

/* ==========================================================================
   TEAM
   ========================================================================== */

.team-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.team-card {
  text-align: center;
  padding: var(--space-lg);
}

.team-card__image {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  margin: 0 auto var(--space-md);
  background: var(--bg-elevated);
  border: 2px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: var(--fs-4xl);
  overflow: hidden;
  transition: all var(--transition-base);
}
.team-card__image img { width: 100%; height: 100%; object-fit: cover; }
.team-card:hover .team-card__image {
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

.team-card__name { font-size: var(--fs-lg); margin-bottom: var(--space-xs); }
.team-card__role { color: var(--neon-cyan); font-size: var(--fs-sm); font-weight: 600; margin-bottom: var(--space-md); }
.team-card__bio { color: var(--text-secondary); font-size: var(--fs-sm); }

/* ==========================================================================
   EQUIPMENT / TECH SHOWCASE
   ========================================================================== */

.equipment-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.equipment-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  transition: all var(--transition-base);
}
.equipment-item:hover {
  border-color: var(--border-glow);
  box-shadow: var(--glow-card);
}
.equipment-item__icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-on-neon);
  font-size: var(--fs-xl);
  flex-shrink: 0;
}
.equipment-item__name { font-weight: 600; }
.equipment-item__type { font-size: var(--fs-sm); color: var(--text-muted); }

/* ==========================================================================
   CONTACT FORM
   ========================================================================== */

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: var(--space-2xl);
}

.form-group { margin-bottom: var(--space-lg); }
.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  transition: all var(--transition-fast);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--neon-cyan);
  box-shadow: 0 0 0 3px rgba(0, 210, 255, 0.15);
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-muted); }
.form-textarea { min-height: 140px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

.form-submit { width: 100%; margin-top: var(--space-md); }

/* ==========================================================================
   CONTACT INFO CARDS
   ========================================================================== */

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.contact-card {
  text-align: center;
  padding: var(--space-xl);
}

.contact-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-cyan));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: var(--fs-xl);
  color: var(--text-on-neon);
  box-shadow: var(--glow-blue);
}
.contact-card__icon--whatsapp { background: linear-gradient(135deg, #25d366, #1ebe5d); box-shadow: 0 0 20px #25d366; }
.contact-card__icon--map { background: linear-gradient(135deg, var(--neon-magenta), var(--neon-magenta-dim)); box-shadow: var(--glow-magenta); }

.contact-card__title { margin-bottom: var(--space-xs); }
.contact-card__detail { color: var(--text-secondary); text-decoration: none; transition: color var(--transition-fast); }
.contact-card__detail:hover { color: var(--neon-cyan); }

/* ==========================================================================
   GOOGLE MAPS EMBED
   ========================================================================== */

.map-wrapper {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  box-shadow: var(--glow-card);
}
.map-wrapper iframe {
  display: block;
  width: 100%;
  height: 400px;
  border: none;
  filter: grayscale(1) invert(0.9) contrast(1.2) brightness(0.7) sepia(0.3) hue-rotate(200deg) saturate(2);
  transition: filter var(--transition-slow);
}
.map-wrapper:hover iframe { filter: none; }

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-3xl) 0 var(--space-xl);
  position: relative;
  z-index: var(--z-base);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

@media (max-width: 768px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer__grid { grid-template-columns: 1fr; }
}

.footer__brand { max-width: 320px; }
.footer__logo { margin-bottom: var(--space-md); }
.footer__tagline { color: var(--text-secondary); font-size: var(--fs-sm); margin-bottom: var(--space-lg); }

.footer__social {
  display: flex;
  gap: var(--space-sm);
}
.footer__social-link {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
}
.footer__social-link:hover {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}
.footer__social-link--facebook:hover { color: #1877f2; border-color: #1877f2; box-shadow: 0 0 20px #1877f2; }
.footer__social-link--whatsapp:hover { color: #25d366; border-color: #25d366; box-shadow: 0 0 20px #25d366; }

.footer__heading {
  font-size: var(--fs-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--neon-cyan);
  margin-bottom: var(--space-md);
}

.footer__links { list-style: none; display: flex; flex-direction: column; gap: var(--space-sm); }
.footer__link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--fs-sm);
  transition: color var(--transition-fast);
}
.footer__link:hover { color: var(--neon-cyan); }

.footer__contact { list-style: none; display: flex; flex-direction: column; gap: var(--space-sm); }
.footer__contact-item { display: flex; align-items: center; gap: var(--space-sm); color: var(--text-secondary); font-size: var(--fs-sm); }
.footer__contact-item i { color: var(--neon-cyan); width: 18px; }
.footer__contact-link { color: var(--text-secondary); text-decoration: none; transition: color var(--transition-fast); }
.footer__contact-link:hover { color: var(--neon-cyan); }

.footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  color: var(--text-muted);
  font-size: var(--fs-sm);
}
.footer__legal { display: flex; flex-wrap: wrap; gap: var(--space-md); }
.footer__legal-link { color: var(--text-muted); text-decoration: none; transition: color var(--transition-fast); }
.footer__legal-link:hover { color: var(--neon-cyan); }

/* ==========================================================================
   WHATSAPP FLOAT BUTTON
   ========================================================================== */

.whatsapp-float {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: 99;
  animation: float-up 0.6s ease-out, float-pulse 3s ease-in-out infinite;
}

@keyframes float-up {
  from { opacity: 0; transform: translateY(20px) scale(0.9); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes float-pulse {
  0%, 100% { box-shadow: 0 0 20px #25d366, 0 0 40px #25d366; }
  50% { box-shadow: 0 0 30px #25d366, 0 0 60px #25d366, 0 0 80px #25d366; }
}

.whatsapp-float__btn {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25d366 0%, #1ebe5d 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--fs-2xl);
  text-decoration: none;
  box-shadow: 0 4px 24px rgba(37, 211, 102, 0.4), 0 0 0 4px rgba(37, 211, 102, 0.1);
  transition: all var(--transition-base);
}
.whatsapp-float__btn:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.5), 0 0 0 6px rgba(37, 211, 102, 0.15);
}
.whatsapp-float__tooltip {
  position: absolute;
  right: calc(100% + var(--space-md));
  top: 50%;
  transform: translateY(-50%);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: var(--space-sm) var(--space-md);
  border-radius: 8px;
  font-size: var(--fs-sm);
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  pointer-events: none;
}
.whatsapp-float:hover .whatsapp-float__tooltip {
  opacity: 1;
  visibility: visible;
}

/* ==========================================================================
   BACK TO TOP
   ========================================================================== */

.back-to-top {
  position: fixed
  bottom: var(--space-xl);
  left: var(--space-xl);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
}
.back-to-top--visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top__btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
}
.back-to-top__btn:hover {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

/* ==========================================================================
   PAGE HEADER (for subpages)
   ========================================================================== */

.page-header {
  padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-3xl);
  text-align: center;
  position: relative;
  z-index: var(--z-base);
}
.page-header__title { margin-bottom: var(--space-md); }
.page-header__breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}
.page-header__breadcrumb a { color: var(--text-muted); text-decoration: none; transition: color var(--transition-fast); }
.page-header__breadcrumb a:hover { color: var(--neon-cyan); }
.page-header__breadcrumb .separator { color: var(--border-subtle); }
.page-header__breadcrumb .current { color: var(--neon-cyan); font-weight: 500; }

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }

@media (max-width: 768px) {
  .d-md-none { display: none; }
  .d-md-flex { display: flex; }
  .d-md-block { display: block; }
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {
  .header, .whatsapp-float, .back-to-top, .btn, .nav__toggle { display: none !important; }
  body::before { display: none; }
  .circuit-frame { display: none; }
  body { background: white; color: black; }
  .card, .contact-form { border: 1px solid #ccc; box-shadow: none; }
  a { text-decoration: none; color: black; }
}