.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 var(--pad);
  background: rgba(251, 248, 243, 0.64);
  border-bottom: 1px solid rgba(18, 17, 15, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav__logo {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1;
  color: var(--ink);
}

.nav__logo span {
  color: var(--pink);
  font-style: italic;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav__link {
  font-size: 14px;
  font-weight: 500;
  color: rgba(18, 17, 15, 0.72);
  transition: color var(--t-fast) var(--ease);
}

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

.nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  background: var(--ink);
  transition:
    transform var(--t-mid) var(--ease),
    background var(--t-mid) var(--ease);
}

.nav__cta:hover {
  transform: translateY(-1px);
  background: var(--orange);
}

.nav__burger {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: rgba(18, 17, 15, 0.04);
  align-items: center;
  justify-content: center;
  position: relative;
}

.nav__burger span {
  position: absolute;
  width: 16px;
  height: 1.5px;
  background: var(--ink);
  transition:
    transform var(--t-mid) var(--ease),
    opacity var(--t-mid) var(--ease);
}

.nav__burger span:first-child {
  transform: translateY(-4px);
}

.nav__burger span:last-child {
  transform: translateY(4px);
}

.nav__burger.is-open span:first-child {
  transform: rotate(45deg);
}

.nav__burger.is-open span:last-child {
  transform: rotate(-45deg);
}

.nav__mobile {
  display: none;
  flex-direction: column;
  gap: 14px;
  padding: 18px var(--pad) 26px;
  background: rgba(251, 248, 243, 0.94);
  border-bottom: 1px solid rgba(18, 17, 15, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav__mobile.is-open {
  display: flex;
}

.nav__mobile-link {
  font-family: var(--serif);
  font-size: 34px;
  letter-spacing: -0.04em;
  line-height: 1;
}

@media (max-width: 760px) {
  .nav__links {
    display: none;
  }

  .nav__burger {
    display: inline-flex;
  }
}
  align-items: baseline;
  gap: 0;
  opacity: 0;
  animation: navItemIn 0.5s var(--expo) 0.15s forwards;
}
.nav__logo span {
  color: var(--pink);
}

/* Links */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--s-6);
  opacity: 0;
  animation: navItemIn 0.5s var(--expo) 0.25s forwards;
}

.nav__link {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 249, 238, 0.5);
  transition: color 0.15s;
}
.nav__link:hover {
  color: var(--yellow);
}

/* Mobile hamburger */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  cursor: pointer;
}
.nav__burger-line {
  width: 22px;
  height: 2px;
  background: var(--yellow);
  border-radius: 2px;
  transition:
    transform 0.25s var(--expo),
    opacity 0.2s;
}
.nav__burger.is-open .nav__burger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__burger.is-open .nav__burger-line:nth-child(2) {
  opacity: 0;
}
.nav__burger.is-open .nav__burger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--ink);
  border-bottom: 3px solid var(--yellow);
  padding: var(--s-6) var(--pad);
  flex-direction: column;
  gap: var(--s-5);
  transform: translateY(-8px);
  opacity: 0;
  transition:
    transform 0.25s var(--expo),
    opacity 0.2s;
  z-index: 799;
}
.nav__mobile.is-open {
  transform: none;
  opacity: 1;
}
.nav__mobile-link {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 900;
  font-style: italic;
  color: var(--yellow);
  letter-spacing: -0.03em;
}
.nav__mobile-link:hover {
  color: var(--pink);
}

@keyframes navItemIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .nav__links {
    display: none;
  }
  .nav__burger {
    display: flex;
  }
  .nav__mobile {
    display: flex;
  }
}