.c-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: transparent;
  transition: background-color var(--duration-standard) var(--ease-standard),
    box-shadow var(--duration-standard) var(--ease-standard),
    border-color var(--duration-standard) var(--ease-standard);
  border-bottom: 1px solid transparent;
}

.c-header--scrolled {
  background: rgba(10, 15, 28, 0.8);
  backdrop-filter: blur(20px);
  border-bottom-color: rgba(245, 158, 11, 0.1);
  box-shadow: 0 10px 30px -10px rgba(245, 158, 11, 0.05);
}

.c-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}

.c-header__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.c-header__logo-wrap {
  position: relative;
  display: block;
}

.c-header__logo {
  width: 2.5rem;
  display: block;
}

.c-header__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.c-header__brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-white);
}

.c-header__brand-tagline {
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(251, 191, 36, 0.7);
  margin-top: 0.125rem;
}

.c-header__nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

.c-header__link {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--color-slate-300);
  transition: color var(--duration-fast) var(--ease-standard);
}

.c-header__link:hover {
  color: var(--color-amber-400);
}

.c-header__cta {
  display: none;
  align-items: center;
  gap: 1rem;
}

.c-header__phone {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-slate-400);
  transition: color var(--duration-fast) var(--ease-standard);
}

.c-header__phone:hover {
  color: var(--color-amber-400);
}

.c-header__phone .icon {
  width: 1rem;
  height: 1rem;
}

.c-header__toggle {
  background: none;
  border: none;
  padding: 0.5rem;
  color: var(--color-slate-300);
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
}

.c-header__toggle-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--duration-fast) var(--ease-standard);
}

.c-header__toggle-icon .icon {
  width: 1.5rem;
  height: 1.5rem;
}

.c-header__toggle-icon--close {
  opacity: 0;
}

.c-header__toggle[aria-expanded="true"] .c-header__toggle-icon--open {
  opacity: 0;
}

.c-header__toggle[aria-expanded="true"] .c-header__toggle-icon--close {
  opacity: 1;
}

.c-header__mobile {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height var(--duration-fast) var(--ease-standard),
    opacity var(--duration-fast) var(--ease-standard);
}

.c-header__mobile--open {
  max-height: 32rem;
  opacity: 1;
}

.c-header__mobile-inner {
  background: rgba(10, 15, 28, 0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(245, 158, 11, 0.1);
  padding: 1rem 1.5rem;
}

.c-header__mobile-link {
  display: block;
  padding: 0.75rem 0;
  color: var(--color-slate-300);
  border-bottom: 1px solid rgba(30, 41, 59, 0.5);
}

.c-header__mobile-link:last-of-type {
  border-bottom: none;
}

.c-header__mobile-link:hover {
  color: var(--color-amber-400);
}

.c-header__mobile-footer {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

@media (min-width: 1024px) {
  .c-header__nav,
  .c-header__cta {
    display: flex;
  }

  .c-header__toggle {
    display: none;
  }

  .c-header__mobile {
    display: none;
  }
}