.site-header {
  position: sticky; top: 0; z-index: 1000;
  transition: background var(--duration-base) var(--ease-in-out), border-color var(--duration-base) var(--ease-in-out);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(255,255,255,0.88);
  border-bottom-color: var(--color-border);
  backdrop-filter: blur(12px);
}
.site-header .container {
  width: min(1600px, 100%);
  margin-inline: auto;
  padding-inline: clamp(1rem, 5vw, 5rem);
}
.nav-wrap { display:flex; align-items:center; justify-content:space-between; padding: 1rem 0; }
.logo { font-family: "Cormorant Garamond", serif; font-weight: 600; letter-spacing: 0.05em; color: var(--color-primary); font-size: clamp(1.2rem,2vw,1.7rem); }
.nav-links { display:none; align-items:center; gap: 1.35rem; }
.nav-links a { font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text); text-decoration: underline; text-decoration-color: transparent; text-underline-offset: 0.28em; text-decoration-thickness: 1.5px; transition: text-decoration-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out); }
.nav-links a:hover { text-decoration-color: currentColor; }
.nav-links a[aria-current="page"] { color: var(--color-primary); text-decoration-color: currentColor; }
.nav-toggle { border: 0; background: transparent; width: 2rem; height: 2rem; display: grid; place-items: center; }
.nav-toggle span, .nav-toggle::before, .nav-toggle::after { content:""; display:block; width: 1.3rem; height: 2px; background: var(--color-text); margin: 3px 0; }
.mobile-menu {
  position: fixed; inset: 0; background: var(--color-bg-dark); color: var(--color-text-light);
  display: grid; place-content: center; gap: 1rem; transform: translateX(100%);
}
.mobile-menu a { font-size: var(--text-lg); text-align: center; }
.mobile-menu .btn { margin-top: 1rem; }

@media (min-width: 1024px) {
  .nav-toggle, .mobile-menu { display: none; }
  .nav-wrap {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
  }
  .logo { justify-self: start; }
  .nav-links {
    display: flex;
    grid-column: 2;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: nowrap;
  }
  .nav-cta { grid-column: 3; justify-self: end; color: #fff; padding: 0.75rem 1.35rem; font-size: 0.82rem; letter-spacing: 0.08em; }
}