.fsc-header {
  position: sticky;
  top: 0;
  inset-inline: 0;
  z-index: var(--z-header);
  background: radial-gradient(circle at 0 0, rgba(59, 164, 230, 0.22), transparent 55%), radial-gradient(circle at 100% 0, rgba(23, 179, 123, 0.16), transparent 55%), #050506;
  border-bottom: 1px solid var(--color-border-strong);
  backdrop-filter: blur(12px);
}

.fsc-header__inner {
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding-x-mobile);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  min-height: var(--header-height-mobile);
}

@media (min-width: 768px) {
  .fsc-header__inner {
    padding-inline: var(--container-padding-x-desktop);
    min-height: var(--header-height-desktop);
  }
}

.fsc-header__brand {
  flex: 1 1 auto;
  min-width: 0;
}

.fsc-header__brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  color: inherit;
}

.fsc-header__brand-link:hover {
  text-decoration: none;
}

.fsc-header__logo-mark {
  flex: 0 0 auto;
  width: auto;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: radial-gradient(circle at 20% 0, rgba(59, 164, 230, 0.4), transparent 65%), radial-gradient(circle at 80% 90%, rgba(23, 179, 123, 0.5), transparent 65%), #050506;
  border: 1px solid rgba(244, 245, 247, 0.25);
}

.fsc-header__logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (min-width: 768px) {
  .fsc-header__logo-mark {
    height: 2.75rem;
  }
}

.fsc-header__brand-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.fsc-header__brand-title {
  font-size: clamp(1.1rem, 0.9rem + 0.5vw, 1.5rem);
  white-space: nowrap;
}

.fsc-header__brand-subtitle {
  font-size: 0.625rem;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 479.98px) {
  .fsc-header__inner {
    align-items: center;
  }

  .fsc-header__brand-link {
    align-items: flex-start;
  }

  .fsc-header__brand-text {
    gap: 2px;
  }

  .fsc-header__brand-subtitle {
    white-space: normal;
  }
}

.fsc-header__toggle {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding-inline: 0.75rem;
  padding-block: 0.4rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(5, 5, 7, 0.9);
  color: var(--color-text-main);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.fsc-header__toggle-box {
  width: 1.4rem;
  height: 1rem;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.fsc-header__toggle-line {
  height: 2px;
  width: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transition: transform var(--transition-med), opacity var(--transition-med), transform-origin var(--transition-med);
}

.fsc-header__toggle-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-nav);
}

.fsc-header__toggle:hover {
  background-color: rgba(21, 22, 26, 0.95);
  border-color: rgba(244, 245, 247, 0.16);
}

.fsc-header__toggle:focus-visible {
  box-shadow: var(--shadow-focus-primary);
  outline: none;
}

.fsc-header__toggle[aria-expanded="true"] {
  background-color: rgba(59, 164, 230, 0.16);
  border-color: rgba(59, 164, 230, 0.8);
}

.fsc-header__toggle[aria-expanded="true"] .fsc-header__toggle-line:nth-child(1) {
  transform-origin: left center;
  transform: translateY(4px) rotate(42deg);
}

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

.fsc-header__toggle[aria-expanded="true"] .fsc-header__toggle-line:nth-child(3) {
  transform-origin: left center;
  transform: translateY(-4px) rotate(-42deg);
}

.fsc-header__nav {
  position: fixed;
  inset-inline: 0;
  top: calc(var(--header-height-mobile));
  max-height: calc(100vh - var(--header-height-mobile));
  background: radial-gradient(circle at 0 0, rgba(59, 164, 230, 0.24), transparent 55%), radial-gradient(circle at 100% 0, rgba(23, 179, 123, 0.2), transparent 55%), #050506;
  border-top: 1px solid var(--color-border-strong);
  transform: translateY(-4%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-med), transform var(--transition-med), visibility 0s linear var(--transition-med);
  display: flex;
  flex-direction: column;
  padding-inline: var(--container-padding-x-mobile);
  padding-block: var(--space-sm);
  gap: var(--space-sm);
}

.fsc-header__nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
  flex-direction: column;
  gap: var(--space-xs);
}

.fsc-header__nav-item {
  margin: 0;
}

.fsc-header__nav-link {
  display: inline-block;
  padding-block: 0.2rem;
}

.fsc-header__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.fsc-header__action-btn {
  width: 100%;
  justify-content: center;
}

.fsc-header__mobile-extra {
  font-size: 0.8125rem;
  color: var(--color-text-soft);
}

.fsc-header__mobile-copy {
  margin: 0;
}

.fsc-header__nav--open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
  transition: opacity var(--transition-med), transform var(--transition-med);
}

@media (max-width: 767.98px) {
  body[data-fsc-nav-open="true"] {
    overflow: hidden;
  }
}

@media (min-width: 768px) {
  .fsc-header__toggle {
    display: none;
  }

  .fsc-header__inner {
    gap: var(--space-md);
  }

  .fsc-header__brand-link {
    gap: var(--space-sm);
  }

  .fsc-header__nav {
    position: static;
    inset: auto;
    max-height: none;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    background: transparent;
    border-top: none;
    padding: 0;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-md);
    flex: 0 0 auto;
  }

  .fsc-header__nav-list {
    flex-direction: row;
    align-items: center;
    column-gap: var(--space-md);
    row-gap: 0;
  }

  .fsc-header__nav-link {
    padding-block: 0.35rem;
  }

  .fsc-header__nav-item--secondary {
    margin-left: var(--space-sm);
  }

  .fsc-header__actions {
    flex-wrap: nowrap;
    gap: var(--space-xs);
  }

  .fsc-header__action-btn {
    width: auto;
  }

  .fsc-header__mobile-extra {
    display: none;
  }
}

@media (min-width: 1024px) {
  .fsc-header__inner {
    gap: var(--space-lg);
  }

  .fsc-header__brand-title {
    font-size: clamp(1.3rem, 1.1rem + 0.4vw, 1.75rem);
  }

  .fsc-header__brand-subtitle {
    font-size: 0.7rem;
  }
}