:root {
  --lab-shell-header-bg: rgba(255, 255, 255, 0.76);
  --lab-shell-header-line: rgba(23, 32, 29, 0.08);
  --lab-shell-header-shadow: 0 12px 40px rgba(23, 32, 29, 0.06);
  --lab-shell-header-pill: rgba(23, 32, 29, 0.05);
  --lab-shell-header-text: #586560;
  --lab-shell-header-text-active: #17201d;
}

.site-header {
  padding: 18px 0;
  transition: padding 180ms ease, background-color 180ms ease, backdrop-filter 180ms ease;
  z-index: 1030;
}

body.is-scrolled .site-header {
  padding: 10px 0;
  backdrop-filter: blur(18px);
  background: rgba(243, 239, 232, 0.82);
  border-bottom: 1px solid rgba(23, 32, 29, 0.06);
}

.site-header .navbar {
  background: var(--lab-shell-header-bg);
  border: 1px solid var(--lab-shell-header-line);
  border-radius: 999px;
  width: min(100% - 20px, 1520px);
  margin: 0 auto;
  padding: 0.78rem 1.1rem;
  box-shadow: var(--lab-shell-header-shadow);
  backdrop-filter: blur(14px);
}

.site-header .navbar-collapse {
  align-items: center;
  gap: 1rem;
}

.site-header .navbar-toggler {
  border: 0;
  box-shadow: none !important;
}

.site-header .navbar-toggler-icon {
  background-image: none;
  width: 1.6rem;
  height: 1.6rem;
  position: relative;
  border-top: 2px solid #17201d;
}

.site-header .navbar-toggler-icon::before,
.site-header .navbar-toggler-icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  border-top: 2px solid #17201d;
}

.site-header .navbar-toggler-icon::before {
  top: 0.35rem;
}

.site-header .navbar-toggler-icon::after {
  top: 0.72rem;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex: 0 0 auto;
}

.site-brand img {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  object-fit: contain;
  padding: 5px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 12px 24px rgba(23, 32, 29, 0.10);
}

.site-header .navbar-nav {
  align-items: center;
  gap: 0.15rem;
}

.site-header .nav-link {
  color: var(--lab-shell-header-text);
  font-family: "Manrope", sans-serif;
  font-weight: 700;
  padding: 0.5rem 0.78rem !important;
  border-radius: 999px;
  white-space: nowrap;
}

.site-header .nav-link:hover,
.site-header .nav-link.active {
  color: var(--lab-shell-header-text-active);
  background: var(--lab-shell-header-pill);
}

.site-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.site-login {
  color: var(--lab-shell-header-text);
  font-family: "Manrope", sans-serif;
  font-weight: 700;
  text-decoration: none;
}

.site-cta {
  border-radius: 999px;
  padding: 0.85rem 1.3rem;
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  letter-spacing: -0.01em;
  background: #17201d;
  border-color: #17201d;
  color: #fff !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.site-cta:hover {
  background: #0d1311;
  border-color: #0d1311;
  color: #fff !important;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 1.2rem;
  background: rgba(255, 250, 241, 0.85);
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer a {
  color: var(--accent-2, #245d56);
  font-weight: 700;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 991px) {
  .site-header .navbar {
    border-radius: 28px;
  }

  .site-header .navbar-collapse {
    padding-top: 14px;
  }

  .site-header .navbar-nav {
    align-items: flex-start;
  }

  .site-header .nav-link {
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  .site-actions {
    padding-top: 16px;
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}

@media (min-width: 992px) {
  .site-header .navbar-collapse {
    display: flex !important;
    justify-content: space-between;
    min-width: 0;
  }

  .site-header .navbar-nav {
    flex: 1 1 auto;
    justify-content: center;
  }
}