:root {
  --primary: #f5a623;
  --primary-dark: #d48806;
  --bg-dark: #0f0a06;
  --bg-card: #1c140d;
  --text-light: #f5f5f5;
  --text-muted: #a0958d;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Poppins', sans-serif; background-color: var(--bg-dark); color: var(--text-light); line-height: 1.6; }

/* Sticky Navbar */
.navbar { display: flex; justify-content: space-between; align-items: center; padding: 20px 8%; background: rgba(15, 10, 6, 0.9); position: sticky; top: 0; z-index: 100; backdrop-filter: blur(8px); }
.logo { font-size: 1.5rem; font-weight: 700; color: #fff; }
.logo span { color: var(--primary); }
.navbar nav a { color: var(--text-muted); text-decoration: none; margin: 0 15px; font-weight: 500; transition: 0.3s; }
.navbar nav a:hover { color: var(--primary); }

/* Floating WhatsApp Button */
.whatsapp-float { position: fixed; bottom: 30px; right: 30px; background: #25d366; color: white; padding: 14px 22px; border-radius: 50px; text-decoration: none; font-weight: 600; box-shadow: 0 10px 20px rgba(0,0,0,0.4); z-index: 999; transition: transform 0.3s; }
.whatsapp-float:hover { transform: translateY(-3px); }

/* Hero & 3D Section */
.hero { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; padding: 60px 8%; min-height: 85vh; background: radial-gradient(circle at 70% 50%, #2a1608 0%, #0f0a06 70%); }
.hero-content { flex: 1; min-width: 320px; }
.badge { background: rgba(245, 166, 35, 0.15); color: var(--primary); padding: 6px 14px; border-radius: 20px; font-size: 0.85rem; font-weight: 600; }
.hero-content h1 { font-size: 3.2rem; line-height: 1.15; margin: 18px 0; }
.hero-content h1 span { color: var(--primary); }
.hero-content p { color: var(--text-muted); font-size: 1.1rem; max-width: 480px; margin-bottom: 30px; }

.hero-actions { display: flex; gap: 15px; margin-bottom: 40px; }
.btn-primary { background: var(--primary); color: #000; padding: 12px 28px; border-radius: 30px; text-decoration: none; font-weight: 600; transition: 0.3s; border: none; cursor: pointer; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { border: 1px solid var(--text-muted); color: var(--text-light); padding: 12px 28px; border-radius: 30px; text-decoration: none; font-weight: 500; }

.features-row { display: flex; gap: 20px; font-size: 0.9rem; color: var(--text-muted); }

/* 3D Model Viewer styling */
.hero-3d-wrapper { flex: 1; min-width: 320px; height: 500px; position: relative; }
model-viewer { width: 100%; height: 100%; --poster-color: transparent; }
.\33d-hint { text-align: center; font-size: 0.8rem; color: var(--text-muted); margin-top: 10px; }

/* Grid Sections */
.section { padding: 80px 8%; text-align: center; }
.dark-bg { background-color: var(--bg-card); }
.section-title { font-size: 2.2rem; color: var(--primary); margin-bottom: 10px; }
.section-subtitle { color: var(--text-muted); margin-bottom: 50px; }

.steps-grid, .products-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 25px; margin-top: 30px; }
.step-card, .product-card { background: var(--bg-dark); padding: 30px 20px; border-radius: 16px; border: 1px solid rgba(255,255,255,0.05); }
.step-num { font-size: 1.8rem; font-weight: 700; color: var(--primary); margin-bottom: 10px; }

footer { padding: 30px; text-align: center; font-size: 0.85rem; color: var(--text-muted); border-top: 1px solid rgba(255,255,255,0.05); }

@media (max-width: 768px) {
  .hero { flex-direction: column; text-align: center; }
  .hero-content h1 { font-size: 2.4rem; }
  .hero-actions, .features-row { justify-content: center; flex-wrap: wrap; }
}