:root {
  --color-bg: #f9f9f9;
  --color-text: #1a1a1a;
  --color-accent: #2e4d3a; /* Deep forest green */
  --color-secondary: #e5e5e5;
  --color-white: #ffffff;
  --font-heading: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-body: 'Georgia', serif;
  --transition-smooth: 0.6s cubic-bezier(0.25, 1, 0.5, 1);
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
}

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

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

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

a {
  color: inherit;
  text-decoration: none;
}

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

/* Typography Utilities */
.text-hero { font-size: clamp(3rem, 8vw, 6rem); }
.text-h2 { font-size: clamp(2rem, 5vw, 4rem); margin-bottom: var(--spacing-md); }
.text-body-large { font-size: clamp(1.1rem, 2vw, 1.5rem); }

/* Navigation */
.site-nav {
  position: fixed;
  top: 0;
  width: 100%;
  padding: var(--spacing-md) 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  mix-blend-mode: difference;
  color: var(--color-white);
}

.site-nav .logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  position: relative;
  overflow: hidden;
  display: inline-block;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: translateX(-101%);
  transition: transform 0.3s ease;
}

.nav-links a:hover::after {
  transform: translateX(0);
}

/* Layout Strategies */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 5%;
}

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

/* Grid Strategy 1: Asymmetric Gallery */
.grid-asymmetric {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}
.grid-asymmetric .item-large { grid-column: span 8; }
.grid-asymmetric .item-small { grid-column: span 4; }
.grid-asymmetric .item-medium { grid-column: span 6; }

/* Grid Strategy 2: Bento Box (Complex Dashboard) */
.grid-bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(250px, auto);
  gap: var(--spacing-md);
}
.grid-bento .bento-main { grid-column: span 2; grid-row: span 2; }
.grid-bento .bento-tall { grid-row: span 2; }

/* Grid Strategy 3: Staggered */
.grid-staggered {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}
.staggered-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}
.staggered-item:nth-child(even) .staggered-img {
  order: 2;
}

/* UI Elements */
.btn-magnetic {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  background-color: var(--color-accent);
  color: var(--color-white);
  border-radius: 50px;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: background-color 0.3s ease;
}
.btn-magnetic:hover {
  background-color: #1f3629;
}

/* Hero Section */
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: var(--spacing-xl) 5%;
  color: var(--color-white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
  /* Layered parallax depth setup */
  transform: scale(1.1);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.2) 100%);
  z-index: -1;
}

.hero-content {
  max-width: 800px;
  /* Kinetic typography setup */
  overflow: hidden;
}

.hero h1 {
  /* Text reveal setup */
  transform: translateY(100%);
  opacity: 0;
}

/* Footer */
.site-footer {
  background-color: var(--color-text);
  color: var(--color-white);
  padding: var(--spacing-xl) 5% var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-link {
  display: block;
  margin-bottom: 0.5rem;
  opacity: 0.7;
  transition: opacity 0.3s;
}
.footer-link:hover { opacity: 1; }

/* Modules */
.service-card {
  padding: var(--spacing-md);
  border: 1px solid var(--color-secondary);
  transition: border-color 0.3s ease;
}
.service-card:hover { border-color: var(--color-accent); }
.service-card h3 { margin-bottom: 1rem; }
.service-card p { font-size: 0.95rem; margin-bottom: 0.5rem; opacity: 0.8; }

.case-study {
  position: relative;
  overflow: hidden;
  height: 60vh;
  min-height: 400px;
  color: var(--color-white);
}
.case-study img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s ease;
}
.case-study:hover img { transform: scale(1.05); }
.case-study-content {
  position: absolute;
  bottom: 0;
  padding: var(--spacing-md);
  background: linear-gradient(transparent, rgba(0,0,0,0.9));
  width: 100%;
}

/* SVGs */
.icon {
  width: 24px;
  height: 24px;
  stroke: currentColor;
}

/* Animations (To be wired via effects.js) */
.reveal-text {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
}
.reveal-text .char {
  transform: translateY(115%);
  transition: transform 0.5s var(--transition-smooth);
}

/* Direction-aware hover field */
.hover-field {
  position: relative;
  overflow: hidden;
}
.hover-field .overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--color-accent);
  color: white;
  transform: translateY(100%);
  transition: transform 0.4s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
}
.hover-field:hover .overlay { transform: translateY(0); } /* Will be enhanced by JS */

/* Section Focus Transition */
.section-focus {
  transition: opacity 0.5s ease, filter 0.5s ease;
}
.section-focus.unfocused {
  opacity: 0.3;
  filter: blur(4px);
}

/* Page Transition */
.page-transition-overlay {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100vh;
  background-color: var(--color-accent);
  z-index: 9999;
  transform: translateY(100%);
  pointer-events: none;
}

/* 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;
  }
  .hero h1 { opacity: 1; transform: none; }
  .reveal-text .char { transform: none; }
  .section-focus.unfocused { opacity: 1; filter: none; }
  .page-transition-overlay { display: none; }
}

/* Breakpoints */
@media (max-width: 1024px) {
  .grid-asymmetric .item-large, .grid-asymmetric .item-medium, .grid-asymmetric .item-small {
    grid-column: span 12;
  }
  .grid-bento { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .staggered-item { grid-template-columns: 1fr; }
  .staggered-item:nth-child(even) .staggered-img { order: -1; }
  .nav-links { display: none; } /* Simplified mobile nav */
}

@media (max-width: 480px) {
  .grid-bento { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: var(--spacing-lg) 0; }
}