:root {
  --white: #FAFAF8;
  --gray-light: #E2DED8;
  --steel: #C5C0BA;
  --gray-titanium: #9E9892;
  --stainless: #B5B0AA;
  --copper-red: #C62828;
  --brick-red: #8E1D1D;
  --copper-dark: #A5141A;
  --graphite: #1E1A18;
  --carbon: #3D3530;
  --amber: #E53935;

  --gradient-primary: linear-gradient(135deg, var(--copper-red), var(--brick-red));
  --gradient-text: linear-gradient(135deg, var(--amber), var(--copper-red));
  --gradient-hero: linear-gradient(135deg, rgba(69, 66, 64, 0.738), rgba(203, 201, 200, 0.396));
  --gradient-metallic: linear-gradient(135deg, #E8E5E1, #C5C0BA, #B5B0AA);
  --gradient-steel: linear-gradient(135deg, #D8D4CE, #B8B4AE);
  --gradient-copper: linear-gradient(135deg, #C62828, #9C1D1D, #E53935);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.3s ease;
  --shadow-sm: 0 2px 8px rgba(30,26,24,0.08);
  --shadow-md: 0 8px 30px rgba(30,26,24,0.12);
  --shadow-lg: 0 20px 60px rgba(30,26,24,0.15);
  --shadow-metallic: 0 4px 20px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.5);
  --radius: 12px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--graphite);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.icon-svg {
  fill: currentColor;
  width: 1em;
  height: 1em;
  display: inline-block;
  vertical-align: middle;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 8px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--gradient-copper);
  color: var(--white);
  border-color: var(--copper-red);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(199,59,29,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
  backdrop-filter: blur(4px);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--white);
  color: var(--white);
}

.section {
  padding: 100px 0;
}
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}
.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--copper-red);
  margin-bottom: 16px;
  text-shadow: 0 1px 2px rgba(199,59,29,0.15);
}
.section-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--graphite);
}
.section-desc {
  font-size: 1.1rem;
  color: var(--carbon);
  line-height: 1.7;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
.section-header,
.about-grid,
.services-grid,
.gallery-filters,
.gallery-grid,
.contact-grid {
  animation: fadeInUp 0.6s ease;
}