/* ---- Nav ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(244, 242, 236, 0.82);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.nav.is-scrolled {
  border-bottom-color: var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav-links {
  display: flex;
  gap: 6px;
  align-items: center;
}
.nav-links a {
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13.5px;
  color: var(--ink-3);
  font-weight: 500;
  transition:
    background 0.15s,
    color 0.15s;
}
.nav-links a:hover {
  background: rgba(28, 42, 35, 0.05);
  color: var(--ink-1);
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ---- Hamburger toggle (mobile only) ---- */
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  cursor: pointer;
  padding: 0;
  position: relative;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.8px;
  background: var(--ink-1);
  border-radius: 2px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  transition:
    transform 0.25s ease,
    opacity 0.2s ease,
    top 0.25s ease;
}
.nav-toggle span:nth-child(1) {
  top: 14px;
}
.nav-toggle span:nth-child(2) {
  top: 20px;
}
.nav-toggle span:nth-child(3) {
  top: 26px;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  top: 20px;
  transform: translateX(-50%) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  top: 20px;
  transform: translateX(-50%) rotate(-45deg);
}

.nav-cta-mobile {
  display: none;
}

@media (max-width: 760px) {
  .nav-inner {
    height: 60px;
  }
  .nav-cta-desktop {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(244, 242, 236, 0.98);
    backdrop-filter: saturate(140%) blur(12px);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 14px 20px 22px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition:
      opacity 0.2s ease,
      transform 0.2s ease;
  }
  .nav-links.is-open {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }
  .nav-links a {
    padding: 14px 16px;
    font-size: 15px;
    border-radius: 12px;
    color: var(--ink-1);
  }
  .nav-cta-mobile {
    display: inline-flex;
    justify-content: center;
    margin-top: 8px;
  }
}