.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 22px 0;
  background: transparent;
  transition: background .35s ease, padding .35s ease, box-shadow .35s ease;
}
.nav.is-scrolled {
  background: rgba(10, 10, 11, 0.92);
  backdrop-filter: blur(10px);
  padding: 14px 0;
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--cream);
  letter-spacing: 0.01em;
}
.nav-logo img { height: 34px; width: 34px; }
.nav-logo span::after { content: '.'; color: var(--gold); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cream-dim);
  transition: color .25s ease;
  position: relative;
}
.nav-links a:hover { color: var(--gold-soft); }

.nav-actions { display: flex; align-items: center; gap: 18px; }
.nav-actions .btn { padding: 12px 24px; }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 26px;
}
.nav-burger span {
  height: 1px;
  background: var(--cream);
  width: 100%;
  transition: transform .3s ease, opacity .3s ease;
}

@media (max-width: 880px) {
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(320px, 80vw);
    background: var(--black-2);
    flex-direction: column;
    justify-content: center;
    gap: 32px;
    transform: translateX(100%);
    transition: transform .4s ease;
    border-left: 1px solid var(--line);
  }
  .nav-links.is-open { transform: translateX(0); }
  .nav-actions .btn-ghost { display: none; }
  .nav-burger { display: flex; z-index: 110; }
  .nav-burger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-burger.is-open span:nth-child(2) { opacity: 0; }
  .nav-burger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
}