/* ============================================
   COMPONENT – Navbar
   ============================================ */

/* ── Navbar Container ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-overlay);
  padding: var(--space-5) 0;
  transition: 
    background var(--duration-normal) var(--ease-default),
    padding var(--duration-normal) var(--ease-default),
    box-shadow var(--duration-normal) var(--ease-default),
    backdrop-filter var(--duration-normal) var(--ease-default),
    transform var(--duration-normal) var(--ease-default);
}

/* Scrolled State – past hero, white background */
.navbar.is-scrolled {
  padding: var(--space-3) 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* Dark text when on white background */
.navbar.is-scrolled .navbar__link {
  color: rgba(0, 0, 0, 0.55);
}

.navbar.is-scrolled .navbar__link:hover {
  color: var(--color-neutral-950);
  background: rgba(0, 0, 0, 0.04);
}

.navbar.is-scrolled .navbar__link.is-active {
  color: var(--color-neutral-950);
}

.navbar.is-scrolled .navbar__link.is-active::after {
  background: var(--color-primary-800);
}

.navbar.is-scrolled .navbar__cta {
  color: var(--color-white);
  background: var(--color-primary-800);
  backdrop-filter: none;
}

.navbar.is-scrolled .navbar__cta:hover {
  background: var(--color-primary-700);
}

.navbar.is-scrolled .navbar__hamburger-line {
  background: var(--color-neutral-950);
}

/* Hidden state – slide up */
.navbar.is-hidden {
  transform: translateY(-100%);
}

/* ── Inner Layout ── */
.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (min-width: 768px) {
  .navbar__inner {
    padding-inline: var(--space-10);
  }
}

/* ── Logo ── */
.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.navbar__logo-img {
  height: 106px;
  width: auto;
  object-fit: contain;
  transition: transform var(--duration-normal) var(--ease-bounce);
}

.navbar__logo:hover .navbar__logo-img {
  transform: scale(1.05);
}

/* ── Navigation Links (Desktop) ── */
.navbar__nav {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.navbar__link {
  position: relative;
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: var(--tracking-wide);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: 
    color var(--duration-normal) var(--ease-default),
    background var(--duration-normal) var(--ease-default);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 20px;
  height: 2px;
  background: var(--color-accent-400);
  border-radius: var(--radius-full);
  transition: transform var(--duration-normal) var(--ease-out);
}

.navbar__link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.06);
}

.navbar__link:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.navbar__link.is-active {
  color: var(--color-white);
}

.navbar__link.is-active::after {
  transform: translateX(-50%) scaleX(1);
  background: var(--color-accent-500);
}

/* ── CTA Button in Navbar ── */
.navbar__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-neutral-950);
  background: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-md);
  text-decoration: none;
  letter-spacing: var(--tracking-wide);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: 
    transform var(--duration-normal) var(--ease-default),
    background var(--duration-normal) var(--ease-default),
    box-shadow var(--duration-normal) var(--ease-default);
}

.navbar__cta:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-md);
}

.navbar__cta:active {
  transform: translateY(0);
}

/* ── Hamburger Button (Mobile) ── */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: calc(var(--z-overlay) + 10);
}

.navbar__hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition: 
    transform var(--duration-normal) var(--ease-default),
    opacity var(--duration-fast) var(--ease-default);
}

.navbar__hamburger-line + .navbar__hamburger-line {
  margin-top: 6px;
}

/* Hamburger → X animation */
.navbar__hamburger.is-active .navbar__hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.navbar__hamburger.is-active .navbar__hamburger-line:nth-child(2) {
  opacity: 0;
}

.navbar__hamburger.is-active .navbar__hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ── Mobile Menu ── */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(6, 14, 26, 0.97);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  z-index: var(--z-overlay);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-default);
}

.navbar__mobile-menu.is-open {
  display: flex;
  opacity: 1;
}

.navbar__mobile-link {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-semibold);
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-lg);
  transition: 
    color var(--duration-normal) var(--ease-default),
    background var(--duration-normal) var(--ease-default),
    transform var(--duration-normal) var(--ease-default);
  transform: translateY(20px);
  opacity: 0;
}

.navbar__mobile-menu.is-open .navbar__mobile-link {
  transform: translateY(0);
  opacity: 1;
}

/* Stagger animation for mobile links */
.navbar__mobile-link:nth-child(1) { transition-delay: 0.05s; }
.navbar__mobile-link:nth-child(2) { transition-delay: 0.10s; }
.navbar__mobile-link:nth-child(3) { transition-delay: 0.15s; }
.navbar__mobile-link:nth-child(4) { transition-delay: 0.20s; }
.navbar__mobile-link:nth-child(5) { transition-delay: 0.25s; }
.navbar__mobile-link:nth-child(6) { transition-delay: 0.30s; }

.navbar__mobile-link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.05);
}

.navbar__mobile-link.is-active {
  color: var(--color-accent-400);
}

.navbar__mobile-cta {
  margin-top: var(--space-6);
  padding: var(--space-4) var(--space-10);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-primary-900);
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
  text-decoration: none;
  letter-spacing: var(--tracking-wide);
  transform: translateY(20px);
  opacity: 0;
  transition: 
    transform var(--duration-normal) var(--ease-default),
    opacity var(--duration-normal) var(--ease-default),
    box-shadow var(--duration-normal) var(--ease-default);
  transition-delay: 0.35s;
  box-shadow: var(--shadow-glow);
}

.navbar__mobile-menu.is-open .navbar__mobile-cta {
  transform: translateY(0);
  opacity: 1;
}

.navbar__mobile-cta:hover {
  box-shadow: 0 0 40px rgba(212, 168, 83, 0.4);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .navbar__nav {
    display: none;
  }

  .navbar__cta {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }
}