/* KTS Global - Monochrome Cinematic Design */

/* Color Palette - Grayscale Monochrome Theme */
:root {
  /* Primary Colors - Monochrome System */
  --bg-dark: #2b2b2b;           /* Deep charcoal - primary dark background */
  --bg-light: #edf0f2;         /* Warm off-white - light background */
  --text-light: #edf0f2;       /* Light text on dark backgrounds */
  --text-dark: #2b2b2b;        /* Dark text on light backgrounds */
  --text-muted: #606060;       /* Medium gray - secondary text */
  --text-muted-light: #bdbdbd; /* Light gray - tertiary text/captions */
  --black: #000000;            /* Pure black for accents */
  --white: #ffffff;            /* Pure white */
  
  /* Typography Scale */
  --text-xs: 12px;
  --text-sm: 14px;
  --text-base: 16px;
  --text-lg: 18px;
  --text-xl: 22px;
  --text-2xl: 26px;
  --text-3xl: 36px;
  --text-4xl: 48px;
  --text-5xl: 72px;
  --text-6xl: 96px;
  --text-display: clamp(72px, 8vw, 140px);
  
  /* Spacing Scale - 8px base grid */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 96px;
  --space-4xl: 128px;
  
  /* Layout */
  --container-max: 1280px;
  --container-padding: 80px;
  --container-padding-tablet: 32px;
  --container-padding-mobile: 16px;
  
  /* Effects */
  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-lift: 0 8px 30px rgba(0, 0, 0, 0.15);
  --border-radius: 8px;
}

/* Base Typography - Modern Geometric Sans */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

/* Typography Hierarchy */
.display {
  font-size: var(--text-display);
  font-weight: 600;
  line-height: 0.9;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

.h1 {
  font-size: clamp(var(--text-4xl), 5vw, var(--text-5xl));
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-md);
}

.h2 {
  font-size: clamp(var(--text-2xl), 3vw, var(--text-3xl));
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-sm);
}

.pretitle {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.lead {
  font-size: var(--text-xl);
  font-weight: 400;
  line-height: 1.4;
  color: var(--text-dark);
  margin-bottom: var(--space-lg);
}

.body-large {
  font-size: var(--text-lg);
  line-height: 1.5;
  margin-bottom: var(--space-md);
}

.body {
  font-size: var(--text-base);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.caption {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.4;
}

/* Layout Components */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

@media (max-width: 1024px) {
  .container {
    padding-left: var(--container-padding-tablet);
    padding-right: var(--container-padding-tablet);
  }
}

@media (max-width: 768px) {
  .container {
    padding-left: var(--container-padding-mobile);
    padding-right: var(--container-padding-mobile);
  }
}

/* Section Styles - Alternating Dark/Light */
.section {
  padding: var(--space-4xl) 0;
}

.section-dark {
  background-color: var(--bg-dark);
  color: var(--text-light);
}

.section-dark .pretitle {
  color: var(--text-muted-light);
}

.section-dark .h1,
.section-dark .h2,
.section-dark .h3,
.section-dark .display {
  color: var(--text-light);
}

.section-light {
  background-color: var(--bg-light);
  color: var(--text-dark);
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

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

/* Utility Classes */
.text-center { text-align: center; }
.flex { display: flex; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.w-16 { width: 64px; }
.h-16 { height: 64px; }
.rounded-full { border-radius: 50%; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Button System - Minimal Monochrome */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-base);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--bg-dark);
  color: var(--text-light);
}

.btn-primary:hover {
  background: var(--black);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.btn-secondary {
  background: transparent;
  color: var(--bg-dark);
  border: 2px solid var(--bg-dark);
}

.btn-secondary:hover {
  background: var(--bg-dark);
  color: var(--text-light);
}

.btn-light {
  background: var(--bg-light);
  color: var(--bg-dark);
}

.btn-light:hover {
  background: var(--white);
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(43, 43, 43, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) 0;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-light);
  text-decoration: none;
  font-weight: 700;
  font-size: var(--text-lg);
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
}

.nav-link {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  text-transform: uppercase;
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-muted-light);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--bg-dark);
  color: var(--text-light);
  position: relative;
}

.hero-content {
  width: 100%;
}

.hero-pretitle {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted-light);
  margin-bottom: var(--space-sm);
}

.hero-title {
  font-size: var(--text-display);
  font-weight: 600;
  line-height: 0.9;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  color: var(--text-light);
}

.hero-subtitle {
  font-size: var(--text-xl);
  font-weight: 400;
  line-height: 1.4;
  color: var(--text-muted-light);
  margin-bottom: var(--space-xl);
  max-width: 800px;
}

/* Hero Carousel */
.hero-carousel {
  position: relative;
  overflow: hidden;
}

.hero-carousel-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 2s ease-in-out;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-carousel-slide-active {
  opacity: 1;
}

.hero-carousel-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.3) 40%, rgba(0,0,0,0.7) 100%);
  z-index: 1;
}

.hero-carousel-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: grayscale(100%) contrast(1.1) brightness(0.5);
  transform: scale(1.05);
  transition: transform 20s ease-out;
}

.hero-carousel-slide-active .hero-carousel-image {
  transform: scale(1.1);
}

.hero-overlay {
  position: relative;
  z-index: 3;
}

.hero-content {
  position: relative;
  z-index: 4;
}

/* Carousel Navigation Dots */
.hero-carousel-dots {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-sm);
  z-index: 3;
}

.hero-carousel-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.hero-carousel-dot:hover {
  background: rgba(255, 255, 255, 0.6);
}

.hero-carousel-dot-active {
  background: var(--text-light);
  border-color: rgba(255, 255, 255, 0.5);
}

/* Card Component */
.card {
  background: var(--white);
  padding: var(--space-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
}

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

/* Icon Styles */
.fas {
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
}