.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-nav__link {
  position: relative;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-slate-700);
  padding-block: 0.25rem;
  transition: color 0.2s ease;
}

.site-nav__link:hover {
  color: var(--color-slate-900);
}

.site-nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -4px;
  height: 2px;
  background: var(--gradient-brand);
  transition: right 0.2s ease;
}

.site-nav__link:hover::after,
.site-nav__link.is-active::after {
  right: 0;
}

.site-nav__link.is-active {
  color: var(--color-slate-900);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-slate-900);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

@media (max-width: 780px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-paper);
    box-shadow: var(--shadow-md);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    border-top: 1px solid var(--color-border);
    max-height: calc(100vh - 100%);
    overflow-y: auto;
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: var(--space-2) var(--container-padding);
  }

  .site-nav__list li {
    width: 100%;
  }

  .site-nav__link {
    display: block;
    padding-block: var(--space-2);
    font-size: 1.25rem;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-toggle.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

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

  .nav-toggle.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}