/* ==========================================================================
   Design System & Variables
   ========================================================================== */
:root {
  /* Color Palette (Harmonized with EUROSYSTEM-LOGO3) */
  --color-primary: #121A4B; /* Azul Marino del Logo */
  --color-secondary: #D9005B; /* Magenta/Rosa del Logo */
  --color-accent: #25D366; /* Verde (WhatsApp CTA) - Se mantiene para CTA de WhatsApp */
  --color-accent-hover: #20b858;
  --color-bg-light: #F5F7FA;
  --color-bg-white: #FFFFFF;
  --color-text-main: #333333;
  --color-text-muted: #666666;
  --color-text-inverse: #FFFFFF;

  /* Typography */
  --font-family-sans: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Shadows & Radius */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1), 0 6px 6px rgba(0, 0, 0, 0.05);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 9999px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-sans);
  color: var(--color-text-main);
  background-color: var(--color-bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

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

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 2.5rem); margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }

p {
  margin-bottom: 1rem;
}

.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

/* ==========================================================================
   Components
   ========================================================================== */
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--color-secondary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: #0056b3;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-accent:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: #ffffff; /* Blanco puro para igualar el logo */
  z-index: 1000;
  padding: 0.5rem 0; /* Padding ajustado para logo más grande */
  box-shadow: var(--shadow-sm);
  transition: padding var(--transition-fast);
}

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

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-brand span {
  color: var(--color-secondary);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-weight: 500;
  color: var(--color-text-main);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-secondary);
  transition: width var(--transition-normal);
}

.nav-links a:hover {
  color: var(--color-secondary);
}

.nav-links a:hover::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-primary);
}

/* Hero Section */
.hero {
  padding: 10rem 0 6rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, #0a192f 100%);
  color: var(--color-text-inverse);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: url('data:image/svg+xml;utf8,<svg width="20" height="20" xmlns="http://www.w3.org/2000/svg"><circle cx="2" cy="2" r="2" fill="rgba(255,255,255,0.05)"/></svg>') repeat;
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  color: var(--color-text-inverse);
  margin-bottom: 1.5rem;
}

.hero-content p {
  font-size: 1.25rem;
  color: #a0aec0;
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
}

.hero-image {
  position: relative;
}

.hero-image img {
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* Brands Section */
.brands {
  background-color: var(--color-bg-light);
  padding: 4rem 0;
  border-bottom: 1px solid #e2e8f0;
}

.brands-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 3rem;
  align-items: center;
  opacity: 0.6;
}

.brands-grid img {
  height: 40px;
  filter: grayscale(100%);
  transition: all var(--transition-normal);
}

.brands-grid img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

/* Responsive */
@media (max-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-buttons {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none; /* Hide on mobile by default */
  }
  .mobile-menu-btn {
    display: block;
  }
  h1 { font-size: 2.5rem; }
}

/* Equipment Categories */
.equipment-category {
  margin-bottom: 4rem;
}

.equipment-category-title {
  font-size: 1.8rem;
  color: var(--color-primary);
  margin-bottom: 2rem;
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--color-bg-white);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid #e2e8f0;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-secondary);
}

.service-icon {
  font-size: 3rem;
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-secondary);
  font-weight: 600;
  margin-top: 1rem;
}

.service-link:hover {
  gap: 0.75rem; /* Pequeña animación de flecha */
}

/* Why Us Section */
.why-us-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.features-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.1rem;
  font-weight: 500;
}

.features-list i {
  color: var(--color-accent);
  font-size: 1.5rem;
}

@media (max-width: 768px) {
  .why-us-content {
    grid-template-columns: 1fr;
  }
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  color: var(--color-text-inverse);
  padding: 6rem 0;
}

.cta-section h2 {
  color: var(--color-text-inverse);
  margin-bottom: 1rem;
}

/* Footer */
.footer {
  background-color: var(--color-primary);
  color: #a0aec0;
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer h3 {
  color: var(--color-text-inverse);
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.footer ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

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

.contact-info li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.contact-info i {
  font-size: 1.25rem;
  color: var(--color-secondary);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

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

/* Floating WhatsApp */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: #25D366;
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  transition: transform var(--transition-fast);
}

.floating-whatsapp:hover {
  transform: scale(1.1);
}