.ump-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: linear-gradient(180deg, rgba(5, 6, 17, 0.96), rgba(5, 6, 17, 0.86));
  border-bottom: 1px solid var(--color-border-subtle);
}

.ump-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-3);
}

.ump-header__brand {
  display: flex;
  align-items: center;
}

.ump-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.ump-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 40% 60% 55% 45%;
  background: conic-gradient(from 160deg, var(--color-primary), var(--color-accent-red), var(--color-accent-yellow), var(--color-primary));
  box-shadow: var(--shadow-neon-primary);
  position: relative;
}

.ump-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: inherit;
  background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.7), transparent 55%),
    radial-gradient(circle at 70% 80%, rgba(0, 213, 255, 0.7), transparent 60%),
    #050611;
}

.ump-header__brand-text {
  display: flex;
  flex-direction: column;
}

.ump-header__brand-title {
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  background: linear-gradient(120deg, var(--color-primary), var(--color-accent-yellow));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ump-header__brand-tagline {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-muted);
}

.ump-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.ump-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.ump-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-neutral-100);
  padding-block: 0.25rem;
}

.ump-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-red));
  transform-origin: center;
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.ump-header__nav-link:hover::after,
.ump-header__nav-link:focus-visible::after {
  transform: scaleX(1);
}

.ump-header__cta-wrap {
  margin-left: var(--space-4);
}

.ump-header__cta {
  padding-inline: 1.4rem;
}

.ump-header__toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: radial-gradient(circle at top left, rgba(0, 213, 255, 0.18), transparent 60%),
    rgba(5, 6, 17, 0.9);
  cursor: pointer;
}

.ump-header__toggle-line {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-neutral-100);
  transition: transform var(--transition-normal), opacity var(--transition-normal), top var(--transition-normal), bottom var(--transition-normal);
}

.ump-header__toggle-line:nth-child(1) {
  top: 11px;
}

.ump-header__toggle-line:nth-child(2) {
  top: 19px;
}

.ump-header__toggle-line:nth-child(3) {
  bottom: 11px;
}

.ump-header__toggle[aria-expanded="true"] .ump-header__toggle-line:nth-child(1) {
  top: 19px;
  transform: rotate(45deg);
}

.ump-header__toggle[aria-expanded="true"] .ump-header__toggle-line:nth-child(2) {
  opacity: 0;
}

.ump-header__toggle[aria-expanded="true"] .ump-header__toggle-line:nth-child(3) {
  bottom: 19px;
  transform: rotate(-45deg);
}

@media (max-width: 960px) {
  .ump-header__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .ump-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top, rgba(0, 213, 255, 0.08), transparent 60%),
      radial-gradient(circle at bottom, rgba(255, 35, 69, 0.05), transparent 60%),
      rgba(5, 6, 17, 0.98);
    border-bottom: 1px solid var(--color-border-subtle);
    padding: var(--space-4) var(--space-4) var(--space-5);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-fast);
  }

  .ump-header__nav-list {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .ump-header__nav-link {
    width: 100%;
    padding-block: 0.45rem;
  }

  .ump-header__cta-wrap {
    width: 100%;
    margin-left: 0;
  }

  .ump-header__cta {
    width: 100%;
    justify-content: center;
  }

  .ump-header--menu-open .ump-header__nav {
    opacity: 1;
    transform: scaleY(1);
    pointer-events: auto;
    visibility: visible;
  }
}

@media (max-width: 520px) {
  .ump-header__brand-title {
    font-size: var(--font-size-xl);
  }

  .ump-header__brand-tagline {
    display: none;
  }

  .ump-header__logo-mark {
    width: 34px;
    height: 34px;
  }
}