/* =============================================
   NAVBAR
   ============================================= */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px var(--section-px);
  background: linear-gradient(to bottom, rgba(10,10,10,0.97), transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: background var(--dur-base) ease,
              padding var(--dur-base) ease;
}

.navbar.scrolled {
  background: rgba(10,10,10,0.98);
  padding-top: 14px;
  padding-bottom: 14px;
  box-shadow: 0 1px 0 var(--color-border);
}

/* ── Logo ── */
.navbar__logo {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 4px;
  color: var(--color-text);
  line-height: 1;
}

.navbar__logo span { color: var(--color-primary); }

/* ── Links ── */
.navbar__links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.navbar__links a {
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  position: relative;
  padding-bottom: 4px;
  transition: color var(--dur-fast) ease;
}

.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--dur-base) var(--ease-out);
}

.navbar__links a:hover { color: var(--color-text); }
.navbar__links a:hover::after { width: 100%; }

/* CTA link */
.navbar__links .nav-cta {
  background: var(--color-primary);
  color: var(--color-bg);
  padding: 9px 22px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  transition: background var(--dur-fast) ease, color var(--dur-fast) ease;
}

.navbar__links .nav-cta::after { display: none; }
.navbar__links .nav-cta:hover  { background: var(--color-primary-hv); color: var(--color-bg); }

/* ── Hamburger (móvil) ── */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
}

.navbar__hamburger span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--dur-base) ease, opacity var(--dur-base) ease;
}

.navbar__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__hamburger.open span:nth-child(2) { opacity: 0; }
.navbar__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Menú móvil ── */
.navbar__mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10,10,10,0.98);
  backdrop-filter: blur(12px);
  z-index: calc(var(--z-nav) - 1);
  padding: 120px var(--section-px) 60px;
  transform: translateX(100%);
  transition: transform var(--dur-slow) var(--ease-snap);
}

.navbar__mobile.open {
  transform: translateX(0);
}

.navbar__mobile a {
  font-family: var(--font-display);
  font-size: 3rem;
  letter-spacing: 3px;
  color: var(--color-text-muted);
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--dur-fast) ease, padding-left var(--dur-base) ease;
}

.navbar__mobile a:hover { color: var(--color-primary); padding-left: 12px; }