:root{
  --purple-600: #6f2da8;
  --purple-700: #5a1f86;
  --accent: #d12b2b;
  --muted: #6c757d;
}

.site-header {
  background: #fff;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 60;
}

.brand .logo-icon {
  color: var(--purple-600);
}
.brand-name {
  font-weight: 700;
  color: #222;
  margin-left: 6px;
}

.sidebar {
  position: fixed;
  left: -320px;
  top: 0;
  width: 300px;
  height: 100%;
  background: #fff;
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);
  transition: left .25s ease;
  z-index: 200;
}
.sidebar.open {
  left: 0;
}
.sidebar .sidebar-header {
  border-bottom: 1px solid #eee;
}
.sidebar ul a {
  display: block;
  padding: 10px 0;
  color: #333;
  text-decoration: none;
}
.sidebar ul a.active {
  color: var(--accent);
  font-weight: 600;
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease;
  z-index: 150;
}
.overlay.active {
  opacity: 1;
  visibility: visible;
}

.hero {
  background: linear-gradient(135deg, rgba(111,45,168,0.95) 0%, rgba(209,43,43,0.9) 100%);
  color: white;
  overflow: hidden;
}
.hero-illustration {
  max-width: 260px;
  opacity: 0.95;
}

.card-feature {
  border: none;
  background: linear-gradient(180deg, #fff, #fbfbff);
  transition: transform .18s ease, box-shadow .18s ease;
  border-radius: 12px;
}
.card-feature:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 30px rgba(16,24,40,0.08);
}
.card-feature .icon i {
  color: var(--purple-600);
}

.cta-section {
  background: linear-gradient(90deg, rgba(111,45,168,0.06), rgba(209,43,43,0.04));
  border: 1px solid rgba(111,45,168,0.06);
}

.tech-list .badge {
  background: #f3f4f6;
  color: #222;
  padding: 8px 10px;
  border-radius: 999px;
  font-weight: 600;
}

@media (max-width: 767px) {
  .brand-name { display: none; }
  .hero { padding: 2rem 1rem; }
  .hero-illustration { display: none; }
  header.site-header { padding: 0.5rem 1rem; }
}

a.nav-link {
  color: #333;
  font-weight: 600;
}
a.nav-link:hover { color: var(--purple-700); text-decoration: none; }
.btn-ghost {
  background: transparent;
  border: none;
  color: #333;
}