/* ==========================================================================
   NAVIGATION — Fixed top bar with scroll state + mobile hamburger
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  transition: background var(--duration-micro) var(--ease-micro),
              backdrop-filter var(--duration-micro) var(--ease-micro),
              border-color var(--duration-micro) var(--ease-micro);
  border-bottom: 1px solid transparent;
}

.nav.nav-scrolled {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 96px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ==========================================================================
   LOGO — Image
   ========================================================================== */

.nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.nav__logo-img {
  height: 80px;
  width: auto;
  display: block;
  object-fit: contain;
}

/* ==========================================================================
   NAV LINKS — Center
   ========================================================================== */

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  position: relative;
  transition: color var(--duration-micro) var(--ease-micro);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text-primary);
  transition: width var(--duration-micro) var(--ease-micro);
}

.nav__link:hover {
  color: var(--text-primary);
}

.nav__link:hover::after {
  width: 100%;
}

/* ==========================================================================
   NAV CTA — Right
   ========================================================================== */

.nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-small);
  color: var(--white);
  background: var(--primary);
  border: none;
  padding: 0.75rem 1.75rem;
  border-radius: 4px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: all var(--duration-micro) var(--ease-micro);
  white-space: nowrap;
  line-height: 1;
}

.nav__cta:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 24px var(--primary-glow);
}

/* ==========================================================================
   HAMBURGER — Mobile toggle
   ========================================================================== */

.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  z-index: 1001;
}

.nav__hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all var(--duration-micro) var(--ease-micro);
  transform-origin: center;
}

/* Hamburger → X animation */
.nav__hamburger.active .nav__hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav__hamburger.active .nav__hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   MOBILE MENU — Slide in from right
   ========================================================================== */

@media (max-width: 768px) {
  .nav__inner {
    height: 72px;
  }

  .nav__logo-img {
    height: 48px;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: var(--bg-0);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-xl);
    transform: translateX(100%);
    transition: transform 300ms var(--ease-reveal);
    z-index: 1000;
  }

  .nav__links.open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: var(--text-body);
  }

  .nav__cta-desktop {
    display: none;
  }

  .nav__cta-mobile {
    display: inline-block;
    margin-top: var(--space-sm);
  }
}

@media (min-width: 769px) {
  .nav__cta-mobile {
    display: none;
  }
}