.gp-header {
  position: sticky;
  top: 0;
  z-index: var(--gp-z-header);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.9));
  border-bottom: 1px solid var(--gp-color-border-subtle);
}

.gp-header-inner {
  max-width: var(--gp-max-width-xl);
  margin: 0 auto;
  padding: 0.6rem var(--gp-space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gp-space-lg);
}

.gp-header-nav {
  display: flex;
  align-items: center;
  flex: 1 1 0;
}

.gp-header-nav-left {
  justify-content: flex-end;
}

.gp-header-nav-right {
  justify-content: flex-start;
}

.gp-header-nav-list {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.gp-header-nav-item {
  flex: 0 0 auto;
}

.gp-header-nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.1rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gp-color-text-soft);
  white-space: nowrap;
}

.gp-header-nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.1rem;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(123, 60, 255, 0.1), rgba(178, 92, 255, 0.7));
  transform-origin: center;
  transform: scaleX(0);
  opacity: 0;
  transition: transform var(--gp-duration-base) var(--gp-ease-soft), opacity var(--gp-duration-base) var(--gp-ease-soft);
}

.gp-header-nav-link:hover {
  color: var(--gp-color-primary-deep);
}

.gp-header-nav-link:hover::after {
  transform: scaleX(1);
  opacity: 1;
}

.gp-header-nav-link-active {
  color: var(--gp-color-primary-deep);
}

.gp-header-nav-link-active::after {
  transform: scaleX(1);
  opacity: 1;
}

.gp-header-nav-item-cta {
  margin-left: 0.25rem;
}

.gp-header-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--gp-radius-pill);
  border: 1px solid rgba(123, 60, 255, 0.25);
  background: linear-gradient(135deg, rgba(123, 60, 255, 0.12), rgba(255, 255, 255, 0.96));
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gp-color-primary-deep);
  box-shadow: 0 10px 24px rgba(15, 0, 60, 0.08);
}

.gp-header-nav-cta:hover {
  background: linear-gradient(135deg, rgba(123, 60, 255, 0.18), rgba(255, 255, 255, 0.98));
  box-shadow: 0 14px 30px rgba(15, 0, 60, 0.12);
}

.gp-header-brand {
  flex: 0 0 auto;
  text-align: center;
  min-width: 0;
}

.gp-header-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.3rem 0.9rem;
  border-radius: var(--gp-radius-pill);
  border: 1px solid var(--gp-color-border-subtle);
  background: radial-gradient(circle at top left, rgba(123, 60, 255, 0.12), rgba(255, 255, 255, 0.96));
  box-shadow: 0 10px 24px rgba(15, 0, 60, 0.08);
}

.gp-header-logo-mark {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: radial-gradient(circle at top, #ffffff 0, #7b3cff 48%, #4b1c9c 100%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.7), 0 8px 18px rgba(123, 60, 255, 0.4);
}

.gp-header-logo-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.gp-header-logo-title {
  font-family: var(--gp-font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gp-color-text);
}

.gp-header-logo-subtitle {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--gp-color-text-muted);
}

.gp-header-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid var(--gp-color-border-subtle);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 24px rgba(15, 0, 60, 0.08);
}

.gp-header-nav-toggle-bar {
  width: 16px;
  height: 1.5px;
  border-radius: 999px;
  background: #4b1c9c;
  transition: transform var(--gp-duration-fast) var(--gp-ease-soft), opacity var(--gp-duration-fast) var(--gp-ease-soft);
}

.gp-header-nav-mobile {
  display: none;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.98), rgba(245, 240, 255, 0.98));
  border-top: 1px solid var(--gp-color-border-subtle);
}

.gp-header-nav-mobile-panel {
  max-width: var(--gp-max-width-xl);
  margin: 0 auto;
  padding: 0.5rem var(--gp-space-md) 0.9rem;
}

.gp-header-nav-mobile-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.gp-header-nav-mobile-item {
  margin: 0;
}

.gp-header-nav-mobile-link {
  display: block;
  padding: 0.55rem 0;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gp-color-text-soft);
}

.gp-header-nav-mobile-link-active {
  color: var(--gp-color-primary-deep);
}

.gp-header-nav-mobile-cta {
  margin-top: 0.75rem;
}

.gp-header-nav-mobile-cta-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.6rem 1rem;
  border-radius: var(--gp-radius-pill);
  border: 1px solid rgba(123, 60, 255, 0.25);
  background: linear-gradient(135deg, #7b3cff, #b25cff);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gp-color-text-on-primary);
  box-shadow: 0 14px 30px rgba(123, 60, 255, 0.35);
}

.gp-header-nav-mobile-cta-link:hover {
  background: linear-gradient(135deg, #6b32e6, #a050f0);
}

.gp-header-nav-mobile-open .gp-header-nav-mobile {
  display: block;
}

.gp-header-nav-mobile-open .gp-header-nav-toggle-bar:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.gp-header-nav-mobile-open .gp-header-nav-toggle-bar:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

@media (max-width: 1023px) {
  .gp-header-inner {
    padding-top: 0.4rem;
    padding-bottom: 0.4rem;
  }
  .gp-header-nav-left,
  .gp-header-nav-right {
    display: none;
  }
  .gp-header-nav-toggle {
    display: inline-flex;
  }
}

@media (max-width: 767px) {
  .gp-header-inner {
    padding-inline: var(--gp-space-md);
  }
}

@media (max-width: 479px) {
  .gp-header-logo {
    padding-inline: 0.7rem;
  }
  .gp-header-logo-title {
    font-size: 0.9rem;
  }
  .gp-header-logo-subtitle {
    display: none;
  }
}