:root {
  --bg-black: #050505;
  --text-white: #ffffff;
  --text-muted: #A1A1AA;
  --accent-glow: #2E7D32;
  --accent-secondary: #E65100;
  --logo-height: 56px;
  --footer-text-color: #666;
  --footer-border-color: #222;
  --footer-link-color: inherit;
  --footer-link-hover-color: #ffffff;
  --header-bg: transparent;
}

body {
  background-color: var(--bg-black);
  color: var(--text-white);
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
  line-height: 1.5;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 5%;
  gap: 20px;
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background: var(--header-bg);
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
  color: inherit;
  text-decoration: none;
}

.logo__image {
  height: var(--logo-height);
  width: auto;
  display: block;
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.35));
}

.btn-action {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  padding: 10px 20px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-action:hover {
  background: white;
  color: black;
}

.footer {
  text-align: center;
  padding: 50px;
  color: var(--footer-text-color);
  font-size: 0.9rem;
  border-top: 1px solid var(--footer-border-color);
}

.footer__nav,
.footer__social {
  margin-top: 16px;
}

.footer__social { margin-top: 20px; }

.footer a {
  color: var(--footer-link-color);
  text-decoration: none;
  font-weight: 600;
}

.footer a:hover {
  color: var(--footer-link-hover-color);
}

.footer__social a {
  font-size: 1.5rem;
  margin: 0 10px;
  cursor: pointer;
}

@media (max-width: 768px) {
  .site-header { padding: 16px 5%; gap: 12px; }
  .logo__image { height: 64px; }
}