/* Critical CSS for Above-the-Fold Content - Coastline Spray Foam */

:root {
  --primary-color: #0f172a;
  --secondary-color: #f97316;
  --accent-color: #059669;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-900: #0f172a;
  --text-primary: var(--gray-900);
  --bg-primary: var(--white);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Navigation Critical Styles */
.navbar {
  background-color: var(--white);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}

.navbar-brand {
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--primary-color);
  text-decoration: none;
}

.navbar-nav .nav-link {
  color: var(--text-primary);
  font-weight: 500;
  padding: 0.75rem 1rem;
  transition: var(--transition);
}

/* Hero Section Critical Styles */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--gray-900) 100%);
  color: var(--white);
  padding: 120px 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* Button Critical Styles */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

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

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

/* Container and Grid */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -0.75rem;
}

.col-lg-6 {
  flex: 0 0 50%;
  max-width: 50%;
  padding: 0 0.75rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .col-lg-6 {
    flex: 0 0 100%;
    max-width: 100%;
  }
  
  .navbar-nav {
    background: var(--white);
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
  }
}

/* Performance Optimizations */
.hero {
  will-change: transform;
}

.btn {
  will-change: transform, background-color;
}

/* Preload Critical Images */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../images/20240815_121229.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.1;
  z-index: -1;
}