/* ── NAV ── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem var(--section-pad-x);
  background: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 0.5px solid var(--border);
}
.nav-logo {
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav-logo span {
  color: var(--rose);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mid);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover {
  color: var(--rose);
}
.nav-cta {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white) !important;
  background: var(--rose);
  padding: 9px 20px;
  border-radius: 2px;
  transition: background 0.2s !important;
}
.nav-cta:hover {
  background: var(--rose-dark) !important;
  color: var(--white) !important;
}
.nav-course {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white) !important;
  background: #b8935a;
  padding: 9px 20px;
  border-radius: 2px;
  transition: background 0.2s !important;
}
.nav-course:hover {
  background: #9c7943 !important;
  color: var(--white) !important;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
  transition:
    transform 0.22s ease,
    opacity 0.22s ease;
}
nav.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
nav.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
nav.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  nav {
    padding: 1.25rem 2rem;
    flex-wrap: wrap;
    align-items: center;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0 1rem;
  }
  nav.nav-open .nav-links {
    display: flex;
  }
  .nav-links li {
    width: 100%;
  }
  .nav-links a {
    display: block;
    padding: 0.85rem 0;
    border-bottom: 0.5px solid var(--border);
    font-size: 14px;
    letter-spacing: 0.06em;
  }
  .nav-links li:last-child a,
  .nav-links a.nav-course {
    border-bottom: none;
    margin-top: 0.5rem;
    display: inline-block;
    padding: 9px 20px;
  }
}