/* Shared navigation — all pages */

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg, #F5F4F2);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 48px;
  border-bottom: 0.5px solid var(--gray-light);
}

.logo {
  display: block;
  text-decoration: none;
  flex-shrink: 0;
  line-height: 0;
}

.logo img {
  display: block;
  height: 28px;
  width: auto;
}

.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a { font-size: 12px; color: var(--gray-mid); text-decoration: none; transition: color var(--duration-color) ease; }
.nav-links a:hover { color: var(--text-primary); }
.nav-links a.active { color: var(--text-primary); font-weight: 600; }

@media (max-width: 768px) {
  nav { padding: 20px 24px; }
}

/* Mobile menu toggle */

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  margin: -10px -10px -10px 0;
  border: none;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform var(--duration-press) var(--ease-out);
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  transition:
    transform var(--duration-motion) var(--ease-in-out),
    opacity var(--duration-motion) ease;
  transform-origin: center;
}

nav.is-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

nav.is-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

nav.is-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

nav.is-open .nav-toggle,
nav.is-open .logo {
  position: relative;
  z-index: 101;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  nav .nav-links {
    position: fixed;
    inset: 0;
    top: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 0;
    padding: 96px 32px 48px;
    background: var(--bg, #F5F4F2);
    transform: translateX(100%);
    transition:
      transform var(--duration-drawer) var(--ease-out),
      opacity var(--duration-press) var(--ease-out),
      visibility 0s linear var(--duration-drawer);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
  }

  nav.is-open .nav-links {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
    z-index: 99;
    transition-delay: 0s;
  }

  nav .nav-links li {
    width: 100%;
    border-bottom: 0.5px solid var(--gray-light);
  }

  nav .nav-links li:last-child {
    border-bottom: none;
  }

  nav .nav-links a {
    display: block;
    padding: 20px 0;
    font-size: 18px !important;
    font-weight: 500 !important;
    color: var(--text-primary) !important;
    letter-spacing: -0.3px;
  }

  nav .nav-links a.active {
    color: var(--accent) !important;
  }
}

body.nav-open {
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .nav-toggle-bar {
    transition-duration: 100ms;
  }

  nav .nav-links {
    transform: none;
    transition:
      opacity var(--duration-color) ease,
      visibility 0s linear var(--duration-color);
  }

  nav.is-open .nav-links {
    transform: none;
    transition-delay: 0s;
  }
}