:root {
  /* Color Variables */
  --primary-color: #900C3E;
  --secondary-color: #DBBF9B;
  --text-color: #444444;
  --link-color: #106eea;
  --link-hover-color: #3b8af2;
  --background-light: #f6f9fe;
  --white: #ffffff;
  
  /* Typography */
  --font-primary: 'Open Sans', sans-serif;
  --font-secondary: 'Roboto', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.5;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  
  /* Transitions */
  --transition-fast: 0.3s ease;
  --transition-medium: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  line-height: var(--line-height-base);
  color: var(--text-color);
}

/* Modern Grid Layout System */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.grid {
  display: grid;
  gap: var(--spacing-md);
}

/* Responsive grid columns */
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3, .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

/* Modern Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 0.375rem;
  font-weight: 500;
  transition: var(--transition-fast);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn-primary:hover {
  filter: brightness(110%);
}

/* Card Component */
.card {
  background: var(--white);
  border-radius: 0.5rem;
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

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

/* Modern Form Styles */
.form-group {
  margin-bottom: var(--spacing-md);
}

.input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 0.375rem;
  transition: var(--transition-fast);
}

.input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(144, 12, 62, 0.1);
}

/* Animation Utilities */
.animate-fade {
  animation: fade 0.3s ease-in-out;
}

@keyframes fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Responsive Images */
.img-fluid {
  max-width: 100%;
  height: auto;
}

/* Section Spacing */
.section {
  padding: var(--spacing-xl) 0;
}

/* Typography Utilities */
.text-center { text-align: center; }
.text-primary { color: var(--primary-color); }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.font-bold { font-weight: 700; }

/* Spacing Utilities */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-4 { margin-top: var(--spacing-md); }
.mt-8 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-4 { margin-bottom: var(--spacing-md); }
.mb-8 { margin-bottom: var(--spacing-lg); }

/* Hero Section */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(144, 12, 62, 0.7);
}

.hero-content {
  position: relative;
  z-index: 1;
  color: var(--white);
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--white);
  padding: 1rem 0;
  box-shadow: var(--shadow-sm);
  z-index: 1000;
}

.nav-scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: var(--spacing-md);
    transform: translateY(-100%);
    transition: var(--transition-medium);
  }

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

/* Social Media Icons */
.social-links {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--primary-color);
  color: var(--white);
  transition: var(--transition-fast);
  font-size: 1.25rem;
}

.social-icon:hover {
  transform: translateY(-2px);
  filter: brightness(110%);
}

/* WhatsApp Button */
.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: #25D366;
  color: var(--white);
  border-radius: 2rem;
  font-weight: 500;
  transition: var(--transition-fast);
  text-decoration: none;
}

.whatsapp-btn:hover {
  background: #128C7E;
  color: var(--white);
}

.whatsapp-btn i {
  font-size: 1.25rem;
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  background: #25D366;
  color: var(--white);
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-fast);
}

.whatsapp-float:hover {
  transform: scale(1.1);
  background: #128C7E;
}

/* Header Contact Info */
.header-contact {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #e5d553;
  text-decoration: none;
  transition: var(--transition-fast);
}

.contact-item:hover {
  color: var(--white);
}

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