/* FLOPSERRA Header Styles */

.fs-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px);
  background: linear-gradient(90deg, rgba(5, 7, 17, 0.92), rgba(5, 7, 17, 0.96));
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

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

/* Brand */
.fs-header__brand {
  display: flex;
  align-items: center;
}

.fs-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-text);
}

.fs-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 0.8rem;
  background: radial-gradient(circle at 30% 0, #ff7a3c 0, var(--color-primary) 45%, #4b1e3f 100%);
  color: #fff;
  font-weight: 700;
  font-family: var(--font-display);
  font-size: 1.1rem;
  box-shadow: var(--shadow-glow-primary);
}

.fs-header__logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.9rem;
}

/* Nav */
.fs-header__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-4);
}

.fs-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.fs-header__nav-item--highlight .fs-header__nav-link {
  color: var(--color-accent);
}

.fs-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding-block: 0.2rem;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}

.fs-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width var(--transition-fast);
}

.fs-header__nav-link:hover,
.fs-header__nav-link:focus-visible {
  color: var(--color-text);
}

.fs-header__nav-link:hover::after,
.fs-header__nav-link:focus-visible::after {
  width: 100%;
}

.fs-header__cta {
  display: flex;
}

.fs-header__cta-btn {
  font-size: var(--font-size-xs);
  padding-inline: 1.1rem;
  padding-block: 0.55rem;
}

/* Mobile toggle */
.fs-header__toggle {
  position: relative;
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: rgba(15, 23, 42, 0.96);
  cursor: pointer;
  color: var(--color-text);
}

.fs-header__toggle-bar {
  width: 1.2rem;
  height: 2px;
  border-radius: 999px;
  background: var(--gray-200);
  transition: transform var(--transition), opacity var(--transition), width var(--transition);
}

.fs-header__toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Toggle active state */
.fs-header--nav-open .fs-header__toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.fs-header--nav-open .fs-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.fs-header--nav-open .fs-header__toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Responsive layout */
@media (max-width: 768px) {
  .fs-header__inner {
    padding-block: var(--space-2);
  }

  .fs-header__toggle {
    display: inline-flex;
  }

  .fs-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    margin-top: 0.2rem;
    padding: var(--space-3) var(--space-4) var(--space-4);
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.96), rgba(5, 7, 17, 0.98));
    border-bottom: 1px solid rgba(148, 163, 184, 0.35);
    display: none; /* enhanced by JS */
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }

  .fs-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .fs-header__nav-link {
    font-size: var(--font-size-base);
  }

  .fs-header__cta {
    justify-content: flex-start;
  }

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

  /* When JS adds the open class, show the nav */
  .fs-header--nav-open .fs-header__nav {
    display: flex;
  }
}

@media (min-width: 769px) {
  .fs-header__nav {
    display: flex !important;
  }
}