#site-header.ps-site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: linear-gradient(
    to bottom,
    rgba(249, 250, 251, 0.96),
    rgba(249, 250, 251, 0.92)
  );
  border-bottom: 1px solid rgba(209, 213, 219, 0.9);
}

.ps-nav-inner {
  width: min(1120px, calc(100% - 2.8rem));
  margin: 0 auto;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.ps-nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.ps-nav-logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 40%;
  display: grid;
  place-items: center;
  color: #f9fafb;
  font-family: Inter, system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 900;
  background:
    radial-gradient(circle at 70% 0%, rgba(168, 85, 247, 0.26), transparent 60%),
    linear-gradient(180deg, #00255d 0%, #001c47 100%);
  box-shadow: 0 12px 30px rgba(0, 37, 93, 0.2);
}

.ps-nav-brand-name {
  display: block;
  color: #020617;
  font-family: Inter, system-ui, sans-serif;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.ps-nav-brand-tagline {
  display: block;
  margin-top: 0.05rem;
  color: #9ca3af;
  font-family: Inter, system-ui, sans-serif;
  font-size: 0.76rem;
}

.ps-nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.55rem;
  margin-left: auto;
  font-family: Inter, system-ui, sans-serif;
}

.ps-nav-links a {
  color: #374151;
  font-family: "Trebuchet MS", "Avenir Next", Avenir, "Segoe UI", sans-serif;
  font-size: 1.03rem;
  font-weight: 750;
  letter-spacing: -0.015em;
  padding: 0.38rem 0.15rem;
  text-decoration: none;
  transition: color 0.25s ease, transform 0.25s ease;
}

.ps-nav-links a:hover,
.ps-nav-links a.ps-nav-active {
  color: #6d28d9;
}

.ps-nav-links a:hover {
  transform: translateY(-1px);
}

.ps-nav-auth {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: 0.4rem;
  flex-shrink: 0;
  font-family: Inter, system-ui, sans-serif;
}

#nav-user {
  max-width: 150px;
  overflow: hidden;
  color: #6b7280;
  font-size: 0.78rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ps-nav-signin,
.ps-nav-register,
.ps-nav-signout {
  border-radius: 999px;
  cursor: pointer;
  font-family: Inter, system-ui, sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.ps-nav-signin,
.ps-nav-signout {
  border: 1px solid rgba(0, 37, 93, 0.22);
  background: #ffffff;
  color: #00255d;
  padding: 0.5rem 0.98rem;
}

.ps-nav-register {
  border: 0;
  background: radial-gradient(circle at 30% 0%, #a855f7, #7e22ce, #4c1d95);
  box-shadow: 0 12px 26px rgba(79, 70, 229, 0.22);
  color: #ffffff;
  padding: 0.62rem 1.15rem;
}

.ps-nav-signin:hover,
.ps-nav-signout:hover {
  background: rgba(0, 37, 93, 0.06);
}

.ps-nav-register:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

@media (max-width: 900px) {
  .ps-nav-inner {
    width: min(1120px, calc(100% - 2rem));
  }

  .ps-nav-links {
    display: none;
  }

  .ps-nav-auth {
    margin-left: auto;
  }
}

@media (max-width: 560px) {
  .ps-nav-brand-tagline,
  #nav-user,
  .ps-nav-signin {
    display: none !important;
  }

  .ps-nav-inner {
    min-height: 58px;
  }

  .ps-nav-register,
  .ps-nav-signout {
    font-size: 0.82rem;
    padding: 0.5rem 0.82rem;
  }
}