/* ── Navigation ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  padding: 1.25rem 0;
  transition: box-shadow 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  border-bottom-color: var(--border);
}

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

.nav__name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.25rem;
  color: var(--navy);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.nav__name:hover {
  color: var(--navy);
}

.nav__links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav__links a {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 400;
  font-variant: all-small-caps;
  letter-spacing: 0.08em;
  color: var(--text);
  transition: color 0.2s;
}

.nav__links a:hover {
  color: var(--navy);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  z-index: 110;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--navy);
  transition: transform 0.3s, opacity 0.3s;
}

.nav__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(4.5px, 4.5px);
}

.nav__hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4.5px, -4.5px);
}

/* Mobile drawer */
.nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(27, 43, 75, 0.1);
  z-index: 104;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.nav__overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.nav__drawer {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100vh;
  background: var(--bg);
  border-left: 1px solid var(--border);
  padding: 5rem 2rem 2rem;
  z-index: 105;
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.nav__drawer.open {
  right: 0;
}

.nav__drawer a {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  font-variant: all-small-caps;
  letter-spacing: 0.08em;
  color: var(--text);
  transition: color 0.2s;
}

.nav__drawer a:hover {
  color: var(--navy);
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
  }
  .nav__hamburger {
    display: flex;
  }
}