/* ===== NAV + HAMBURGUESA + OVERLAY MENU MOBILE ===== */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 81px;
  padding: 0 180px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(232, 227, 216, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.nav-brand img { height: 38px; width: auto; }

.nav-links {
  display: flex;
  gap: 56px;
  list-style: none;
}
.nav-links a {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
  opacity: 0.78;
  position: relative;
  transition: opacity 0.3s var(--ease), color 0.3s var(--ease);
}
.nav-links a:hover { opacity: 1; color: var(--orange); }
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: -8px;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--orange); opacity: 1; }

/* Hamburguesa */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px; height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 210;
  position: relative;
}
.nav-hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease), background 0.2s var(--ease);
}
.nav-hamburger.open .nav-hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--paper);
}
.nav-hamburger.open .nav-hamburger-bar:nth-child(2) { opacity: 0; }
.nav-hamburger.open .nav-hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--paper);
}

/* Overlay menu mobile */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: var(--navy);
  z-index: 199;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 56px;
  padding: 80px 24px 40px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), visibility 0s linear 0.35s;
}
.nav-overlay.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), visibility 0s;
}
.nav-overlay-close {
  position: absolute;
  top: 18px;
  right: 16px;
  width: 44px; height: 44px;
  background: rgba(250, 248, 243, 0.06);
  border: 1px solid rgba(250, 248, 243, 0.22);
  border-radius: 50%;
  color: var(--paper);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
  z-index: 220;
}
.nav-overlay-close:hover {
  background: rgba(217, 119, 6, 0.18);
  border-color: var(--orange);
}
.nav-overlay-close svg { width: 20px; height: 20px; }

.nav-overlay-links {
  display: flex;
  flex-direction: column;
  gap: 44px;
  align-items: center;
  text-align: center;
}
.nav-overlay-links a {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 500;
  color: var(--paper);
  letter-spacing: -0.02em;
  transition: color 0.3s var(--ease);
}
.nav-overlay-links a:hover { color: var(--orange); }
.nav-overlay-cta {
  margin-top: 24px;
  padding: 14px 32px !important;
  font-size: 16px !important;
}

/* Responsive nav */
@media (max-width: 980px) {
  .nav { padding: 0 16px !important; height: 64px !important; }
}
@media (max-width: 720px) {
  .nav { padding: 0 16px !important; height: 64px !important; }
  .nav-brand { font-size: 18px !important; }
  .nav-hamburger { display: flex; }
  .nav-links { display: none !important; }
  .nav > .btn-primary { display: none !important; }
  .nav-brand-text { display: none; }
  .nav-overlay-close { display: flex; }
}