.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 14px 0;
  transition: padding .3s ease, background .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  padding: 10px 0;
  background: rgba(10,10,10,.92);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo img {
  height: clamp(56px, 8vw, 84px);
  width: auto;
  background: var(--white);
  border-radius: 6px;
  padding: 4px 8px;
}

.nav-links {
  display: flex;
  gap: 40px;
}
.nav-links a {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white-dim);
  transition: color .2s ease;
}
.nav-links a:hover { color: var(--white); }

.nav-actions { display: flex; align-items: center; gap: 14px; }
.nav-actions .btn { padding: 12px 24px; }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 26px;
}
.nav-burger span {
  height: 1.5px;
  background: var(--white);
  transition: transform .3s ease, opacity .3s ease;
}
.nav-burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger.is-open span:nth-child(2) { opacity: 0; }
.nav-burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(300px, 80vw);
    background: var(--black-2);
    border-left: 1px solid var(--line);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 28px;
    padding: 40px;
    transform: translateX(100%);
    transition: transform .35s ease;
  }
  .nav-links.is-open { transform: translateX(0); }
  .nav-actions .btn-ghost { display: none; }
  .nav-burger { display: flex; }
}