@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;700&family=Inter:wght@300;400;600&display=swap');

:root {
  --bg-color: #050505;
  --surface-1: #0f0f0f;
  --surface-2: #1a1a1a;
  --accent: #d92a2a;
  --text-main: #f4f4f4;
  --text-muted: #888888;
  --border-color: #222222;
  --grid-pattern: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                  linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: var(--grid-pattern);
  background-size: 40px 40px;
  background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Oswald', sans-serif;
  text-transform: uppercase;
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background-color: var(--surface-2);
}

/* Primitives */
.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-padding {
  padding: 140px 0;
}

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

/* Typography */
.display-1 { font-size: clamp(3.5rem, 8vw, 6.5rem); font-weight: 700; letter-spacing: 0.02em; }
.display-2 { font-size: clamp(2.5rem, 6vw, 4.5rem); margin-bottom: 2rem; }
.heading-1 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1.5rem; }
.heading-2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 1rem; }
.body-large { font-size: 1.125rem; color: var(--text-muted); margin-bottom: 2rem; max-width: 800px; line-height: 1.8; }
.body-base { font-size: 1rem; color: var(--text-muted); margin-bottom: 1.5rem; line-height: 1.7; }

/* Grid Strategies */
/* 1. Asymmetric 12-column */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2rem;
}

/* 2. Fluid Auto-fit */
.grid-fluid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

/* 3. Rigid Split */
.grid-rigid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  border-top: 1px solid var(--border-color);
  padding-top: 3rem;
  margin-top: 3rem;
}

/* Navigation */
nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem 0;
}
nav .container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-family: 'Oswald', sans-serif; font-size: 1.75rem; font-weight: 700; letter-spacing: 0.1em; color: #fff; }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a { font-size: 0.875rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); }
.nav-links a:hover, .nav-links a.active { color: var(--text-main); }

/* Buttons */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 1rem 2.5rem; background-color: var(--text-main); color: var(--bg-color);
  font-family: 'Oswald', sans-serif; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.1em; border: none; cursor: pointer; transition: all 0.3s ease;
}
.btn-primary:hover { background-color: var(--accent); color: #fff; }

.btn-outline {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 1rem 2.5rem; background-color: transparent; color: var(--text-main);
  font-family: 'Oswald', sans-serif; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.1em; border: 1px solid var(--border-color); cursor: pointer; transition: all 0.3s ease;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* Modules */
.hero-section {
  position: relative; min-height: 85vh; display: flex; align-items: center;
  border-bottom: 1px solid var(--border-color); overflow: hidden;
}
.hero-bg {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 0;
}
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.3; }
.hero-content { position: relative; z-index: 10; grid-column: 1 / 11; padding: 100px 0; }

.service-card {
  background: var(--surface-1); border: 1px solid var(--border-color);
  padding: 3rem; display: flex; flex-direction: column; height: 100%;
  transition: border-color 0.3s ease; position: relative;
}
.service-card:hover { border-color: var(--text-muted); }
.service-number {
  font-family: 'Oswald', sans-serif; font-size: 0.875rem; color: var(--accent);
  margin-bottom: 1rem; display: block; letter-spacing: 0.1em;
}

.case-card {
  background: var(--surface-1); border: 1px solid var(--border-color);
  overflow: hidden; display: flex; flex-direction: column; height: 100%;
}
.case-card img { width: 100%; aspect-ratio: 16/9; border-bottom: 1px solid var(--border-color); }
.case-content { padding: 3rem; }

.footer {
  border-top: 1px solid var(--border-color); padding: 80px 0 40px; background: var(--surface-1);
}

/* Animations & Effects */
.js-enabled .scroll-reveal { opacity: 0; transform: translateY(40px); }
.js-enabled .reveal-active { opacity: 1; transform: translateY(0); transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1); }

.dir-hover-container { position: relative; overflow: hidden; cursor: pointer; }
.dir-hover-overlay {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(217, 42, 42, 0.95); display: flex; align-items: center; justify-content: center;
  transform: translateY(100%); transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1); z-index: 10;
}
.dir-hover-content { text-align: center; color: #fff; padding: 2rem; }

.depth-parallax-wrapper { perspective: 1200px; overflow: hidden; }
.depth-parallax-element { width: 100%; height: 100%; transform-style: preserve-3d; transition: transform 0.1s linear; }

.kinetic-header {
  font-size: clamp(4rem, 12vw, 12rem); font-family: 'Oswald', sans-serif; font-weight: 700;
  color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,0.06);
  white-space: nowrap; line-height: 0.8; user-select: none;
}

.focus-container { display: flex; flex-wrap: wrap; gap: 2rem; }
.focus-item { flex: 1; min-width: 320px; transition: opacity 0.4s ease, filter 0.4s ease; }
.focus-container:hover .focus-item:not(:hover) { opacity: 0.2; filter: grayscale(100%); }

.page-transition { opacity: 1; transition: opacity 0.5s ease; }
.page-exit { opacity: 0; }

/* Responsive */
@media (max-width: 1024px) {
  .grid-12 { grid-template-columns: repeat(8, 1fr); }
  .hero-content { grid-column: 1 / 9; }
  .service-card { grid-column: span 4; }
  .grid-rigid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
  .grid-12 { grid-template-columns: 1fr; }
  .hero-content, .service-card { grid-column: 1 / -1; }
  .nav-links { display: none; }
  .container { padding: 0 20px; }
  .section-padding { padding: 80px 0; }
}

@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; }
  .js-enabled .scroll-reveal { opacity: 1; transform: none; }
  .kinetic-header { transform: none !important; }
}