/* Main site – project management */
.site-main .site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg, #fff);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
}

.site-main .header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-main .logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-text);
  text-decoration: none;
}

.site-main .logo:hover {
  text-decoration: none;
  color: var(--color-accent);
}

.site-main .nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.site-main .nav a {
  color: var(--color-text);
  font-weight: 500;
  text-decoration: none;
}

.site-main .nav a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.site-main .nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

@media (max-width: 768px) {
  .site-main .nav,
  .site-trading .nav,
  .site-oil .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-surface);
    padding: 1rem;
    box-shadow: var(--shadow);
  }
  .site-main .nav.open,
  .site-trading .nav.open,
  .site-oil .nav.open {
    display: flex;
  }
  .site-trading .nav.open,
  .site-oil .nav.open {
    background: #1a2f4a;
  }
  .site-oil .nav.open {
    background: #2c1810;
  }
  .nav-toggle {
    display: block !important;
  }
}

.site-main .hero {
  background: var(--hero-bg, linear-gradient(135deg, #0d3d21 0%, #0d5c2e 100%));
  color: #fff;
  padding: 4rem 0;
  text-align: center;
}

.site-main .hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  margin: 0 0 1rem;
  font-weight: 700;
}

.site-main .hero p {
  font-size: 1.15rem;
  opacity: .92;
  max-width: 560px;
  margin: 0 auto 1.5rem;
}

.site-main .btn {
  display: inline-block;
  padding: .75rem 1.5rem;
  background: #fff;
  color: var(--color-accent);
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.site-main .btn:hover {
  background: #f0f0f0;
  text-decoration: none;
  color: var(--color-accent);
}

.site-main .btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
}

.site-main .btn-outline:hover {
  background: #fff;
  color: var(--color-accent);
}

.site-main .section {
  padding: 4rem 0;
}

.site-main .section-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin-bottom: 2rem;
  text-align: center;
}

.site-main .card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.site-main .card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.site-main .card h3 {
  margin: 0 0 .5rem;
  font-size: 1.15rem;
}

.site-main .card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: .95rem;
}

.site-main .site-footer {
  background: #1a1a1a;
  color: #ccc;
  padding: 3rem 0 1.5rem;
  margin-top: 4rem;
}

.site-main .footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.site-main .footer-grid a {
  display: block;
  color: #aaa;
  margin-bottom: .25rem;
}

.site-main .footer-grid a:hover {
  color: #fff;
}

.site-main .footer-copy {
  text-align: center;
  font-size: .875rem;
  opacity: .8;
  margin: 0;
}

.site-main .stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  padding: 2rem 0;
}

.site-main .stat {
  text-align: center;
}

.site-main .stat strong {
  display: block;
  font-size: 2rem;
  color: var(--color-accent);
}

.site-main .stat span {
  font-size: .9rem;
  color: var(--color-text-muted);
}