/* =========================================================
   Header — medido de la referencia: alto 100px, logo ~74px,
   nav centrado verticalmente, botón WhatsApp a la derecha.
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(248, 246, 244, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(10, 27, 51, 0.06);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand img { height: 62px; width: 62px; }

.brand-name {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--navy-ink);
  white-space: nowrap;
  line-height: 1;
}

.brand-name em {
  font-family: var(--font-script);
  color: var(--red);
  font-style: normal;
  font-weight: 400;
  font-size: 1.15em;
  margin-left: 2px;
}

.main-nav {
  display: flex;
  gap: 38px;
}

.main-nav a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy-ink);
  position: relative;
  padding-bottom: 6px;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.is-active { color: var(--navy); }

.main-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--red);
  border-radius: 2px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 26px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn-primary {
  background: var(--red);
  color: var(--white);
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover { background: var(--red-dark); transform: translateY(-1px); }

.btn-secondary {
  background: var(--white);
  color: var(--navy-ink);
  border-color: rgba(10, 27, 51, 0.14);
}
.btn-secondary:hover { border-color: var(--navy); background: rgba(11, 72, 136, 0.04); }

.btn-header { padding: 11px 24px; font-size: 0.92rem; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
}
.nav-toggle svg { width: 26px; height: 26px; color: var(--navy-ink); }

/* =========================================================
   "¿Cuál es tu objetivo?" — dropdown de navegación por Buyer
   Persona hacia las 4 landing pages especializadas. Reutiliza
   la tipografía/color del resto del .main-nav y los tokens de
   radius/shadow del Design System — no introduce estilos nuevos.
   ========================================================= */
.nav-dropdown { position: relative; display: flex; align-items: center; }

.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  padding: 0 0 6px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy-ink);
  white-space: nowrap;
  transition: color 0.2s ease;
}
.nav-dropdown-trigger:hover,
.nav-dropdown.is-open .nav-dropdown-trigger { color: var(--navy); }

.nav-dropdown-caret { width: 13px; height: 13px; flex-shrink: 0; transition: transform 0.2s ease; }
.nav-dropdown.is-open .nav-dropdown-caret { transform: rotate(180deg); }

.nav-dropdown-panel {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  transform: translate(-50%, -6px);
  width: 340px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 110;
}
.nav-dropdown.is-open .nav-dropdown-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.nav-dropdown-panel .nav-dropdown-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  white-space: normal;
  transition: background 0.15s ease, transform 0.15s ease;
}
.nav-dropdown-item:hover,
.nav-dropdown-item:focus-visible {
  background: rgba(11, 72, 136, 0.06);
  transform: translateY(-1px);
}
.nav-dropdown-item:hover .nav-dropdown-title,
.nav-dropdown-item:focus-visible .nav-dropdown-title { color: var(--navy); }

.nav-dropdown-emoji { font-size: 1.25rem; line-height: 1; margin-top: 1px; flex-shrink: 0; }

.nav-dropdown-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.nav-dropdown-title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--navy-ink);
  transition: color 0.15s ease;
}
.nav-dropdown-desc { font-size: 0.78rem; color: rgba(10, 27, 51, 0.6); line-height: 1.3; }

@media (max-width: 1180px) {
  .main-nav { gap: 24px; }
}

@media (max-width: 980px) {
  .main-nav { display: none; }
  .main-nav.is-open {
    display: flex;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--ivory);
    border-bottom: 1px solid rgba(10, 27, 51, 0.08);
    flex-direction: column;
    gap: 0;
    padding: 8px 45px 18px;
  }
  .main-nav.is-open a { padding: 12px 0; }
  .nav-toggle { display: inline-flex; }
  .btn-header span { display: none; }

  /* En móvil, "¿Cuál es tu objetivo?" se comporta como un item más
     del acordeón del menú hamburguesa — sin panel flotante. */
  .nav-dropdown { width: 100%; flex-direction: column; align-items: stretch; }
  .main-nav.is-open .nav-dropdown-trigger {
    width: 100%;
    justify-content: space-between;
    padding: 12px 0;
  }
  .nav-dropdown-panel {
    position: static;
    transform: none;
    width: 100%;
    max-height: 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .nav-dropdown.is-open .nav-dropdown-panel {
    max-height: 480px;
    padding: 2px 0 10px;
    transform: none;
    left: auto;
  }
  .main-nav.is-open .nav-dropdown-panel .nav-dropdown-item { padding: 10px 6px; }
}

@media (max-width: 560px) {
  :root { --header-h: 76px; }
  .container { padding: 0 20px; }
  .brand img { height: 42px; width: 42px; }
  .brand-name { font-size: 1.25rem; }
}