/* ==========================================================================
   EQUISER C.A. - Modern Industrial Design System
   ========================================================================== */

:root {
  /* Brand Color Palette */
  --color-primary: #1E3A8A;
  --color-primary-dark: #0F172A;
  --color-primary-light: #3B82F6;
  --color-accent: #FFC107;
  --color-accent-hover: #E0A800;
  --color-whatsapp: #25D366;
  --color-whatsapp-dark: #128C7E;
  
  /* Neutral Palette */
  --bg-dark: #0B132B;
  --bg-card-dark: #1C2541;
  --bg-light: #F8FAFC;
  --bg-card-light: #FFFFFF;
  --text-dark: #0F172A;
  --text-muted: #64748B;
  --text-light: #F8FAFC;
  --text-light-muted: #94A3B8;
  --border-light: #E2E8F0;
  --border-dark: #334155;

  /* Typography */
  --font-heading: 'Barlow Condensed', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;

  /* Shadows & Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.2);
}

/* 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);
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1.1;
}

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

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

/* Layout Utilities */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-dark {
  background-color: var(--bg-dark);
  color: var(--text-light);
}

.section-title {
  font-size: 2.75rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

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

.section-subtitle {
  text-align: center;
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 3rem;
}

.section-dark .section-subtitle {
  color: var(--text-light-muted);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo-link img {
  height: 52px;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: #d97706; /* Warm Industrial Amber */
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-primary);
  background: rgba(30, 58, 138, 0.08);
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-sm);
}

.lang-switch a {
  color: var(--text-dark);
}

.lang-switch a:hover, .lang-switch a.active {
  color: var(--color-primary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-primary-dark);
  font-size: 1.8rem;
  cursor: pointer;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .mobile-menu-btn {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background-color: #ffffff;
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 3px solid var(--color-accent);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transform: translateY(-150%);
    transition: transform 0.3s ease;
  }

  .nav-menu.active {
    transform: translateY(0);
  }
}