:root {
  /* Color Palette - Premium Adventure (High adrenaline, controlled) */
  --bg-dark: #0A0A0B;
  --bg-surface: #141416;
  --bg-surface-light: #222225;
  --text-primary: #FAFAFA;
  --text-secondary: #A1A1AA;
  --accent: #E84126; /* Intense Orange/Red for adrenaline */
  --accent-hover: #FF5A3E;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Oswald', var(--font-sans); /* Blocky, strong display font */
  
  /* Spacing */
  --sp-xs: 0.5rem;
  --sp-sm: 1rem;
  --sp-md: 2rem;
  --sp-lg: 4rem;
  --sp-xl: 8rem;
  
  /* Layout */
  --container-width: 1440px;
  --border-radius: 4px;
  --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

h1 { font-size: clamp(3rem, 8vw, 6rem); }
h2 { font-size: clamp(2.5rem, 5vw, 4rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.5rem); }

.text-accent { color: var(--accent); }
.text-muted { color: var(--text-secondary); }

/* Buttons & CTA */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background-color: var(--accent);
  color: #fff;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background-color: #000;
  transition: left 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: -1;
}

.btn-primary:hover::before {
  left: 0;
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--text-secondary);
}

.btn-outline:hover {
  border-color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.05);
}

/* Layout Containers */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--sp-md);
}

.section {
  padding: var(--sp-xl) 0;
}

/* Navigation */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--sp-sm) var(--sp-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: transform var(--transition-smooth);
}

.site-nav.hidden {
  transform: translateY(-100%);
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  gap: var(--sp-md);
}

.nav-links a {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 1px;
  background-color: var(--accent);
  transition: width var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}

.nav-toggle svg { width: 24px; height: 24px; }

/* Grid Strategy 1: Asymmetrical Split (Hero / Dual features) */
.grid-asymmetric {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-md);
}

@media (min-width: 1024px) {
  .grid-asymmetric {
    grid-template-columns: 1.5fr 1fr;
    gap: var(--sp-lg);
    align-items: center;
  }
  .grid-asymmetric.reverse {
    grid-template-columns: 1fr 1.5fr;
  }
}

/* Grid Strategy 2: Bento Box (Dashboards / Media / Overview) */
.grid-bento {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-md);
  grid-auto-rows: 300px;
}

@media (min-width: 768px) {
  .grid-bento {
    grid-template-columns: repeat(4, 1fr);
  }
  .bento-large { grid-column: span 2; grid-row: span 2; }
  .bento-wide { grid-column: span 2; }
  .bento-tall { grid-row: span 2; }
}

/* Grid Strategy 3: Fluid Grid (Standard Lists / Services) */
.grid-fluid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--sp-lg);
}

/* Components */
.card {
  background-color: var(--bg-surface);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  position: relative;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(255,255,255,0.1);
}

.card-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.card:hover .card-img {
  transform: scale(1.05);
}

.card-body {
  padding: var(--sp-md);
}

/* Utility / Helpers */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Page Transitions */
.page-transition-enter { opacity: 0; transform: translateY(20px); }
.page-transition-enter-active { opacity: 1; transform: translateY(0); transition: opacity 0.5s ease, transform 0.5s ease; }
.page-transition-exit { opacity: 1; transform: translateY(0); }
.page-transition-exit-active { opacity: 0; transform: translateY(-20px); transition: opacity 0.3s ease, transform 0.3s ease; }

/* Responsive adjustments */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-dark);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
  }
  
  .nav-links.active {
    opacity: 1;
    pointer-events: auto;
  }
  
  .nav-toggle { display: block; z-index: 101; }
  .section { padding: var(--sp-lg) 0; }
}

/* Effects Base CSS (used by JS) */
.reveal-item {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-item.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal-item { opacity: 1; transform: none; }
}

/* Footer */
.site-footer {
  background-color: var(--bg-surface);
  padding: var(--sp-lg) 0 var(--sp-md);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-lg);
  margin-bottom: var(--sp-lg);
}

.footer-col h4 {
  margin-bottom: var(--sp-sm);
  font-size: 1.25rem;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: var(--sp-md);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}