/* ============================================================
   header.css — Estilos del header y navegación
   ============================================================ */

/* ── SITE HEADER ─────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-gray-200);
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 70px;
}

/* ── LOGO ────────────────────────────────────────────────── */
.header__logo {
  flex-shrink: 0;
  transition: opacity var(--transition);
}
.header__logo:hover { opacity: 0.85; }

/* ── NAV ─────────────────────────────────────────────────── */
.header__nav { flex: 1; }
.nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Items con dropdown */
.nav__item { position: relative; }

.nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--clr-gray-600);
  transition: all var(--transition);
}
.nav__link:hover, .nav__link.is-active {
  color: var(--clr-dark);
  background: var(--clr-gray-100);
}
.nav__link.is-active { font-weight: 700; color: var(--clr-accent); }

.nav__arrow {
  font-size: 0.65rem;
  transition: transform var(--transition);
  color: var(--clr-gray-400);
}
.has-dropdown:hover .nav__arrow { transform: rotate(180deg); }

/* ── DROPDOWN ────────────────────────────────────────────── */
.nav__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--clr-white);
  border: 1.5px solid var(--clr-gray-200);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  min-width: 220px;
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
}
.has-dropdown:hover .nav__dropdown,
.has-dropdown:focus-within .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown__link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--clr-gray-600);
  transition: all var(--transition);
}
.dropdown__link:hover {
  background: var(--clr-gray-50);
  color: var(--clr-dark);
  padding-left: 1.1rem;
}

/* ── ACTIONS ─────────────────────────────────────────────── */
.header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* ── HAMBURGER MOBILE ────────────────────────────────────── */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.nav__toggle:hover { background: var(--clr-gray-100); }
.hamburger {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-dark);
  border-radius: 2px;
  transition: all var(--transition);
}
/* Estado abierto */
.nav__toggle.is-open .hamburger:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle.is-open .hamburger:nth-child(2) { opacity: 0; }
.nav__toggle.is-open .hamburger:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── RESPONSIVE HEADER ───────────────────────────────────── */
@media (max-width: 900px) {
  .header__actions .btn--whatsapp { display: none; }
}

@media (max-width: 768px) {
  .header__inner { height: 60px; }
  .nav__toggle { display: flex; }
  .header__actions { gap: 0.5rem; }
  .header__actions .btn--primary { padding: 0.55rem 1rem; font-size: 0.82rem; }

  .header__nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--clr-white);
    padding: 1.5rem var(--container-pad);
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 999;
    border-top: 1px solid var(--clr-gray-200);
  }
  .header__nav.is-open {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav__link {
    padding: 0.9rem 0.5rem;
    font-size: 1rem;
    border-bottom: 1px solid var(--clr-gray-100);
    border-radius: 0;
  }
  .nav__dropdown {
    position: static;
    box-shadow: none;
    border: none;
    background: var(--clr-gray-50);
    opacity: 1;
    visibility: visible;
    transform: none;
    padding: 0.25rem 0;
    display: none;
  }
  .has-dropdown.is-open .nav__dropdown { display: block; }
  .dropdown__link {
    padding: 0.7rem 1.5rem;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--clr-gray-200);
  }
  .dropdown__link:hover { padding-left: 1.5rem; }
}

@media (max-width: 380px) {
  .header__actions .btn--primary { display: none; }
}