/* ===============================================================================================
   CW INDUSTRIES NV - MODERN CSS ENHANCEMENTS
   
   Purpose: Modern CSS features that work alongside Bootstrap 3
   Version: 1.0
   
   Installation: Add this file AFTER your main style.css
   <link rel="stylesheet" href="css/cw-modern-enhancements.css">
   =============================================================================================== */

/* 1. CSS CUSTOM PROPERTIES (VARIABLES) */
:root {
  --cw-yellow: #ffea00;
  --cw-dark-gray: #323336;
  --cw-medium-gray: #6b6d6f;
  --cw-light-gray: #f5f5f5;
  --cw-white: #ffffff;
  --cw-black: #101010;
  --cw-gold: #b29747;
  
  --space-xs: 5px;
  --space-sm: 10px;
  --space-md: 15px;
  --space-lg: 20px;
  --space-xl: 30px;
  --space-xxl: 40px;
  
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-full: 50%;
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.25);
  
  --transition-base: 0.3s ease;
}

/* 2. MODERN PORTFOLIO GRID */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xxl);
}

@media (max-width: 991px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
}

@media (max-width: 767px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

.portfolio-grid-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--cw-white);
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.portfolio-grid-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.portfolio-grid-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-base);
  border-radius: var(--radius-md);
}

.portfolio-grid-item:hover img {
  transform: scale(1.08);
}

/* 3. FLEXBOX UTILITIES */
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

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

.flex-gap-md { gap: var(--space-md); }
.flex-gap-lg { gap: var(--space-lg); }

/* 4. RESPONSIVE TYPOGRAPHY */
.hero-title {
  font-size: clamp(32px, 5vw, 60px);
  line-height: 1.2;
  font-weight: 600;
  color: var(--cw-dark-gray);
}

.section-title-modern {
  font-size: clamp(24px, 3.5vw, 40px);
  line-height: 1.3;
  color: var(--cw-dark-gray);
  margin-bottom: var(--space-xl);
}

/* 5. MODERN CARDS */
.modern-card {
  background: var(--cw-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--space-xl);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.modern-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

/* 6. MODERN BUTTONS */
.btn-modern {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-weight: 500;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-modern-primary {
  background: var(--cw-yellow);
  color: var(--cw-dark-gray);
}

.btn-modern-primary:hover {
  background: var(--cw-dark-gray);
  color: var(--cw-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 7. SMOOTH SCROLLING */
html {
  scroll-behavior: smooth;
}

:target {
  scroll-margin-top: 100px;
}

/* 8. HOVER EFFECTS */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.hover-underline {
  position: relative;
  display: inline-block;
}

.hover-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--cw-yellow);
  transition: width var(--transition-base);
}

.hover-underline:hover::after {
  width: 100%;
}

/* 9. ACCESSIBILITY */
*:focus-visible {
  outline: 3px solid var(--cw-yellow);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

/* 10. UTILITY CLASSES */
.shadow-md { box-shadow: var(--shadow-md) !important; }
.cursor-pointer { cursor: pointer !important; }