:root {
  --accent: #C87941;
  --accent-lt: #E09A65;
  --accent-dk: #A0602E;
  --ink: #0F0F0F;
  --ink2: #1A1A1A;
  --steel: #3A3A3A;
  --mist: #888888;
  --parchment: #F5F0EA;
  --white: #FFFFFF;
  --ff-display: 'Playfair Display', Georgia, serif;
  --ff-body: 'Source Sans 3', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--ff-body); background: var(--parchment); color: var(--ink); line-height: 1.6; }
h1, h2, h3 { font-family: var(--ff-display); color: var(--ink); font-weight: 700; }

.sticky-nav { position: sticky; top: 0; background: var(--ink); color: white; padding: 1rem 5%; display: flex; justify-content: space-between; align-items: center; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.3); }
.nav-links a { color: var(--white); text-decoration: none; margin-left: 20px; font-weight: 600; text-transform: uppercase; font-size: 0.9rem; transition: 0.3s; }
.nav-links a:hover, .nav-links a.active { color: var(--accent); }

.hero { height: 80vh; background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://www.carsoftulsa.com/wp-content/uploads/2019/02/slide1.jpg') center/cover; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; color: white; padding: 0 10%; }
.hero h1 { font-size: 3.5rem; margin-bottom: 1rem; }
.hero h1 i { color: var(--accent); font-style: italic; }

.btn { padding: 12px 30px; border: none; cursor: pointer; text-decoration: none; font-weight: 700; text-transform: uppercase; transition: 0.3s; display: inline-block; }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-dk); }

.section { padding: 80px 10%; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.card { background: white; padding: 30px; border-bottom: 4px solid var(--accent); transition: 0.3s; }
.card:hover { transform: translateY(-10px); }

footer { background: var(--ink); color: var(--mist); padding: 60px 10%; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; border-top: 5px solid var(--accent); }
footer h4 { color: white; margin-bottom: 20px; }

@media (max-width: 768px) { .hero h1 { font-size: 2.5rem; } .nav-links { display: none; } }