/*
 * Eclipse Services — Navigation CSS
 * Fixed top nav: dark bar, logo left, links centre-right, CTA far right.
 * Mobile: hamburger with full-screen overlay.
 */


/* ── Site nav ────────────────────────────────────────────────── */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  height: var(--nav-height);
  background-color: var(--color-black);
  border-bottom: 1px solid var(--color-border-dark);
  display: flex;
  align-items: center;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad-x);
  gap: var(--space-8);
}


/* ── Logo ────────────────────────────────────────────────────── */

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  color: var(--color-white);
  line-height: 1;
}


/* ── Desktop links ────────────────────────────────────────────── */

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-mid-grey);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-white);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.nav-links a.active {
  color: var(--color-cyan);
}


/* ── Nav CTA ─────────────────────────────────────────────────── */

.nav-cta {
  flex-shrink: 0;
}


/* ── Hamburger ───────────────────────────────────────────────── */

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: 0;
  flex-shrink: 0;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition:
    transform var(--transition-base),
    opacity   var(--transition-fast);
  transform-origin: center;
}

.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


/* ── Mobile overlay ──────────────────────────────────────────── */

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 800;
  background-color: var(--color-black);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: var(--space-20) var(--space-8);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.nav-overlay.open {
  display: flex;
  opacity: 1;
}

.nav-overlay-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  text-align: center;
}

.nav-overlay-links a {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  text-decoration: none;
  letter-spacing: var(--letter-spacing-display);
  transition: color var(--transition-fast);
}

.nav-overlay-links a:hover,
.nav-overlay-links a.active {
  color: var(--color-cyan);
}

.nav-overlay-cta {
  margin-top: var(--space-4);
}


/* ── Responsive ──────────────────────────────────────────────── */

@media (max-width: 768px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }
}