/* ════════════════════════════════════════════════
   MENÚ PRINCIPAL — compartido por todas las páginas.
   El markup lo arma js/nav.js. Usa los tokens de color que define cada
   página en :root; acá solo se agregan los propios del menú.
   ════════════════════════════════════════════════ */
:root {
  --nav-overlay-bg: rgba(245, 243, 248, 0.97);
}

/* ── Barra ── */
#navbar {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 100;
  background: transparent;
  transition: background 0.4s ease, backdrop-filter 0.4s ease, box-shadow 0.4s ease;
}
#navbar.scrolled {
  background: var(--color-nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--color-accent-border);
}
#navbar .nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: padding 0.4s ease;
}

/* ── Logo ── */
#navbar .nav__logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
#navbar .nav__logo img { display: block; width: 48px; height: 48px; object-fit: contain; }
#navbar .nav__brand {
  font-family: var(--font-display);
  font-weight: 700; font-size: 18px; letter-spacing: 0.08em;
  color: var(--color-text-primary); text-transform: uppercase;
}
#navbar .nav__brand-accent { color: var(--color-accent-dark); }

/* ── Enlaces desktop ── */
.nav__actions { display: flex; align-items: center; gap: 20px; }
.nav__links { display: none; align-items: center; gap: 36px; list-style: none; margin: 0; padding: 0; }
.nav__item { position: relative; }
.nav__link {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-display);
  font-size: 13px; font-weight: 500; letter-spacing: 0.06em; line-height: 1.5;
  color: var(--color-text-primary); text-decoration: none; text-transform: uppercase;
  padding: 4px 0;
  transition: text-decoration-color 0.2s ease;
}
/* Sin opacidad: el texto atenuado no llegaba al contraste AA cuando pasaba
   sobre las manchas del fondo. El hover se marca con un subrayado tenue. */
.nav__link:hover {
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 6px;
}

.nav__cta {
  font-family: var(--font-display);
  font-size: 13px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; text-decoration: none; color: var(--color-text-primary);
  border: 1.5px solid var(--color-hairline-strong);
  padding: 8px 20px; border-radius: var(--radius-pill, 100px);
  transition: border-color 0.5s ease, background 0.5s ease, color 0.5s ease;
}
.nav__cta:hover { border-color: var(--color-accent-dark); color: var(--color-text-primary); background: var(--color-accent-light); }

/* ── Hamburguesa ── */
.nav__hamburger {
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
  width: 44px; height: 44px; padding: 10px;
  background: transparent; border: none; cursor: pointer;
}
.nav__hamburger span {
  display: block; width: 22px; height: 1.5px; background: var(--color-text-primary); border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav__hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Menú móvil (overlay) ── */
.nav__mobile {
  position: fixed;
  inset: 0;
  z-index: 99;
  display: none;
  flex-direction: column;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 96px 24px 48px;
  background: var(--nav-overlay-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.nav__mobile.open { display: flex; }
.nav__mobile-list {
  list-style: none;
  margin: auto;
  padding: 0;
  width: 100%;
  max-width: 420px;
  display: flex; flex-direction: column; gap: 8px;
  text-align: center;
}
.nav__mobile-link,
.nav__mobile-cta {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; min-height: 56px;
  padding: 4px 0;
  font-family: var(--font-display);
  font-size: 28px; font-weight: 700; letter-spacing: 0.04em;
  text-transform: uppercase; text-decoration: none;
  color: var(--color-text-primary);
}
.nav__mobile-cta { color: var(--color-accent-dark); }

/* ── Sin JavaScript: enlaces básicos ── */
.nav__noscript {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 24px;
  padding: 16px 24px;
  background: var(--color-nav-bg);
  font-family: var(--font-display);
  font-size: 13px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase;
}
.nav__noscript a { color: var(--color-text-primary); text-decoration: none; }

/* Sin el resaltado celeste que pone el navegador al tocar en móvil */
#navbar a, #navbar button, .nav__mobile a { -webkit-tap-highlight-color: transparent; }

/* ── Foco visible ── */
#navbar a:focus-visible,
#navbar button:focus-visible,
.nav__mobile a:focus-visible {
  outline: 2px solid var(--color-accent-dark);
  outline-offset: 4px;
  border-radius: 6px;
}

/* ── Desktop ── */
@media (min-width: 769px) {
  #navbar .nav__inner { padding: 20px 40px; }
  #navbar.scrolled .nav__inner { padding: 14px 40px; }
  .nav__links { display: flex; }
  .nav__hamburger { display: none; }
  .nav__mobile { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  .nav__hamburger span { transition: none; }
}