/* ============================================
   TURNKEY CLEANROOM SERVICES - MASTER UI DESIGN
   ============================================
   Scoped styles for Turnkey Cleanroom Services section only.
   Features:
   - Bold, intentional typography (Playfair Display + Source Sans Pro)
   - Unique geometric background animation
   - Dark mode support with CSS variables
   - Fully responsive design
   - No color overlays on images
   - WCAG AA accessible
   ============================================ */

/* Import Fonts - Editorial & Human-Centric */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700;900&family=Source+Sans+3:wght@300;400;600;700&display=swap');

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */
#turnkey-services-section {
  /* Light Mode Colors */
  --tks-bg-primary: #FAFAFA;
  --tks-bg-card: #FFFFFF;
  --tks-text-primary: #1A1A1A;
  --tks-text-secondary: #525252;
  --tks-text-tertiary: #737373;
  --tks-accent: #2B6CB0;
  --tks-accent-hover: #1E4D8B;
  --tks-border: #E5E5E5;
  --tks-shadow-sm: rgba(0, 0, 0, 0.04);
  --tks-shadow-md: rgba(0, 0, 0, 0.08);
  --tks-shadow-lg: rgba(0, 0, 0, 0.12);
  
  /* Animation Properties */
  --tks-animation-grid-color: rgba(0, 0, 0, 0.03);
  --tks-animation-duration: 20s;
  
  /* Typography */
  --tks-font-display: 'Playfair Display', serif;
  --tks-font-body: 'Source Sans 3', sans-serif;
  
  /* Spacing */
  --tks-spacing-xs: 0.5rem;
  --tks-spacing-sm: 1rem;
  --tks-spacing-md: 1.5rem;
  --tks-spacing-lg: 2.5rem;
  --tks-spacing-xl: 4rem;
}

/* Dark Mode Variables */
/* REMOVED: @media (prefers-color-scheme: dark) - Dark mode is now user-activated only via body.dark-mode or html[data-theme="dark"] class. See docs/workflow/dark-mode.md */
}

/* Manual Dark Mode Class Support */
body.dark-mode #turnkey-services-section,
html.dark-mode #turnkey-services-section {
  --tks-bg-primary: #0F0F0F;
  --tks-bg-card: #1A1A1A;
  --tks-text-primary: #F5F5F5;
  --tks-text-secondary: #D4D4D4;
  --tks-text-tertiary: #A3A3A3;
  --tks-accent: #60A5FA;
  --tks-accent-hover: #3B82F6;
  --tks-border: #262626;
  --tks-shadow-sm: rgba(0, 0, 0, 0.3);
  --tks-shadow-md: rgba(0, 0, 0, 0.4);
  --tks-shadow-lg: rgba(0, 0, 0, 0.5);
  --tks-animation-grid-color: rgba(255, 255, 255, 0.04);
}

/* ============================================
   SECTION BASE STYLES
   ============================================ */
#turnkey-services-section {
  position: relative;
  background-color: var(--tks-bg-primary);
  overflow: hidden;
  padding: var(--tks-spacing-xl) 0;
  isolation: isolate;
}

/* ============================================
   ANIMATED BACKGROUND - GEOMETRIC GRID
   ============================================ */
#turnkey-services-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  opacity: 1;
  background-image: 
    linear-gradient(var(--tks-animation-grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--tks-animation-grid-color) 1px, transparent 1px);
  background-size: 80px 80px;
  animation: tks-grid-shift var(--tks-animation-duration) linear infinite;
  pointer-events: none;
}

#turnkey-services-section::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  opacity: 0.6;
  background-image: 
    linear-gradient(45deg, var(--tks-animation-grid-color) 1px, transparent 1px),
    linear-gradient(-45deg, var(--tks-animation-grid-color) 1px, transparent 1px);
  background-size: 120px 120px;
  animation: tks-grid-morph calc(var(--tks-animation-duration) * 1.5) ease-in-out infinite;
  pointer-events: none;
}

@keyframes tks-grid-shift {
  0% {
    background-position: 0 0, 0 0;
  }
  100% {
    background-position: 80px 80px, 80px 80px;
  }
}

@keyframes tks-grid-morph {
  0%, 100% {
    background-size: 120px 120px;
    opacity: 0.6;
  }
  50% {
    background-size: 100px 100px;
    opacity: 0.4;
  }
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  #turnkey-services-section::before,
  #turnkey-services-section::after {
    animation: none;
  }
}

/* ============================================
   CONTENT CONTAINER
   ============================================ */
#turnkey-services-section .container,
#turnkey-services-section .section-content {
  position: relative;
  z-index: 1;
}

/* ============================================
   TYPOGRAPHY SYSTEM
   ============================================ */
#turnkey-services-section .section-head h2 {
  font-family: var(--tks-font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--tks-text-primary);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--tks-spacing-md);
}

#turnkey-services-section .site-text-primary {
  font-family: var(--tks-font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--tks-accent);
  text-transform: uppercase;
}

/* ============================================
   SERVICE CARDS
   ============================================ */
#turnkey-services-section .wt-box {
  position: relative;
  background-color: var(--tks-bg-card);
  border: 1px solid var(--tks-border);
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px var(--tks-shadow-sm);
  height: 100%;
}

#turnkey-services-section .wt-box:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px var(--tks-shadow-md);
  border-color: var(--tks-accent);
}

/* Image Container */
#turnkey-services-section .our-team-two {
  position: relative;
  overflow: hidden;
  background-color: var(--tks-bg-card);
}

#turnkey-services-section .our-team-two img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  /* NO color overlays as requested */
}

#turnkey-services-section .our-team-two:hover img {
  transform: scale(1.05);
  /* NO color overlays on hover */
}

/* Overlay Content */
#turnkey-services-section .work-hover-discription {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--tks-spacing-md);
  background: linear-gradient(
    to bottom,
    rgba(26, 26, 26, 0.85) 0%,
    rgba(26, 26, 26, 0.9) 100%
  );
  opacity: 0;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#turnkey-services-section .our-team-two:hover .work-hover-discription {
  opacity: 1;
}

/* Card Title */
#turnkey-services-section .work-hover-discription h4 {
  font-family: var(--tks-font-display);
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 700;
  color: #FFFFFF;
  margin: 0 0 var(--tks-spacing-sm) 0;
  text-align: center;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

/* Card Description */
#turnkey-services-section .work-hover-discription h5 {
  font-family: var(--tks-font-body);
  font-size: clamp(0.875rem, 2vw, 1rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 0 var(--tks-spacing-md) 0;
  text-align: center;
  line-height: 1.6;
  background: none;
  padding: 0;
}

/* Card Link Button */
#turnkey-services-section .work-hover-discription .site-button-link {
  font-family: var(--tks-font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: #FFFFFF;
  text-decoration: none;
  padding: var(--tks-spacing-xs) var(--tks-spacing-md);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-block;
}

#turnkey-services-section .work-hover-discription .site-button-link:hover {
  background-color: var(--tks-accent);
  border-color: var(--tks-accent);
  color: #FFFFFF;
  transform: scale(1.05);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Mobile First - 320px+ */
@media (max-width: 767px) {
  #turnkey-services-section {
    padding: var(--tks-spacing-lg) 0;
  }
  
  #turnkey-services-section .section-head h2 {
    font-size: 1.75rem;
  }
  
  #turnkey-services-section .row > [class*='col-'] {
    margin-bottom: var(--tks-spacing-md);
  }
  
  #turnkey-services-section .work-hover-discription {
    opacity: 1;
    background: linear-gradient(
      to bottom,
      rgba(26, 26, 26, 0.75) 0%,
      rgba(26, 26, 26, 0.85) 100%
    );
  }
  
  #turnkey-services-section .work-hover-discription h4 {
    font-size: 1.125rem;
  }
  
  #turnkey-services-section .work-hover-discription h5 {
    font-size: 0.875rem;
  }
}

/* Tablet - 768px+ */
@media (min-width: 768px) and (max-width: 991px) {
  #turnkey-services-section .col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
}

/* Desktop - 992px+ */
@media (min-width: 992px) {
  #turnkey-services-section .col-lg-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
}

/* Large Desktop - 1200px+ */
@media (min-width: 1200px) {
  #turnkey-services-section {
    padding: var(--tks-spacing-xl) 0;
  }
  
  #turnkey-services-section::before {
    background-size: 100px 100px;
  }
  
  #turnkey-services-section::after {
    background-size: 140px 140px;
  }
}

/* ============================================
   ACCESSIBILITY ENHANCEMENTS
   ============================================ */

/* Focus visible for keyboard navigation */
#turnkey-services-section .site-button-link:focus-visible {
  outline: 3px solid var(--tks-accent);
  outline-offset: 3px;
}

/* Improved contrast for WCAG AA compliance */
#turnkey-services-section .wt-separator .sep-line-one {
  color: var(--tks-accent);
  font-weight: 600;
}

/* Ensure minimum touch target size on mobile */
@media (max-width: 767px) {
  #turnkey-services-section .site-button-link {
    min-height: 44px;
    min-width: 100px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}