/* ============================================================
   CONSTRUFACH — HEADER
   Paleta: #0b3557 (navy) | #DA2141 (rojo) | #FFFFFF (blanco)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700&family=Barlow:wght@300;400;500&display=swap');

/* ---------- Variables ---------- */
:root {
  --navy:   #0b3557;
  --red:    #DA2141;
  --white:  #FFFFFF;
  --navy-dark: #071f34;
  --navy-mid:  #0e3f68;
  --header-h:  72px;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- Reset base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Barlow', sans-serif;
  background: #f4f4f2;
  color: var(--navy);
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  padding: 0 2.5rem;
  gap: 2rem;

  background: var(--navy);
  border-bottom: 3px solid var(--red);

  /* Sombra sutil hacia abajo */
  box-shadow: 0 4px 24px rgba(7, 31, 52, 0.35);

  /* Animación de entrada */
  transform: translateY(-100%);
  opacity: 0;
  transition:
    transform 0.6s var(--ease-out-expo),
    opacity 0.4s ease,
    background 0.3s ease,
    box-shadow 0.3s ease;
}

/* Estado visible — se activa con JS al cargar */
.header.active {
  transform: translateY(0);
  opacity: 1;
}

/* Estado "scrolled" — solo achica el alto, sin cambiar fondo */
.header.scrolled {
  height: 60px;
}

/* ---------- Logo ---------- */
.header-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.header-logo-a {
  display: block;
  line-height: 0;
}

.header-logo img {
  height: 42px;
  width: auto;
  display: block;
  transition: transform 0.3s var(--ease-out-expo), opacity 0.3s ease;
  filter: brightness(1);
}

.header.scrolled .header-logo img {
  height: 36px;
}

.header-logo-a:hover img {
  transform: scale(1.04);
  opacity: 0.9;
}

/* ---------- Nav ---------- */
.header-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}

.header-links-a {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  padding: 0.45rem 0.9rem;
  position: relative;
  transition: color 0.25s ease;
}

/* Línea animada inferior */
.header-links-a::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  right: 50%;
  height: 2px;
  background: var(--red);
  transition: left 0.3s var(--ease-out-expo), right 0.3s var(--ease-out-expo);
}

.header-links-a:hover,
.header-links-a.active-link {
  color: var(--white);
}

.header-links-a:hover::after,
.header-links-a.active-link::after {
  left: 0.9rem;
  right: 0.9rem;
}

/* ---------- Botones hamburguesa / cerrar ---------- */
.header-btns {
  display: none; /* visible solo en mobile */
  align-items: center;
}

.header-btns-bars,
.header-btns-close {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 4px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.header-btns-bars:hover,
.header-btns-close:hover {
  background: rgba(255, 255, 255, 0.1);
}

.header-btns-bars:active,
.header-btns-close:active {
  transform: scale(0.92);
}

.header-btns-hiden {
  display: none !important;
}

/* ---------- Acción CTA ---------- */
.header-actions {
  flex-shrink: 0;
}

.header-actions a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--white);
  background: var(--red);
  padding: 0.5rem 1.3rem;
  border: 2px solid var(--red);
  position: relative;
  overflow: hidden;
  transition: color 0.3s ease, border-color 0.3s ease;
}

/* Efecto fill inverso al hover */
.header-actions a::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--white);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out-expo);
}

.header-actions a:hover {
  color: var(--red);
  border-color: var(--white);
}

.header-actions a:hover::before {
  transform: scaleX(1);
}

.header-actions a span {
  position: relative; /* sobre el ::before */
}

/* ============================================================
   BOTÓN WHATSAPP FLOTANTE
   ============================================================ */
.wsp-btn-box {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;

  /* Entrada diferida */
  opacity: 0;
  transform: translateY(20px) scale(0.9);
  animation: wsp-enter 0.6s 1.2s var(--ease-out-expo) forwards;
}

@keyframes wsp-enter {
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.wsp-btn-box a {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: #25D366;
  color: #fff;
  text-decoration: none;
  padding: 0.7rem 1.2rem;
  border-radius: 50px;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45);
  font-family: 'Barlow', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  overflow: hidden;
  max-width: 54px; /* colapsado */
  white-space: nowrap;
  transition:
    max-width 0.5s var(--ease-out-expo),
    padding 0.4s var(--ease-out-expo),
    box-shadow 0.3s ease;
}

.wsp-btn-box a:hover {
  max-width: 280px;
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.6);
}

.wsp-btn-box i {
  font-size: 1.45rem;
  flex-shrink: 0;
  /* Pulso suave */
  animation: wsp-pulse 2.5s 2s ease-in-out infinite;
}

@keyframes wsp-pulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.12); }
}

.wsp-btn-box span {
  opacity: 0;
  transition: opacity 0.3s ease 0.1s;
  font-size: 0.82rem;
}

.wsp-btn-box a:hover span {
  opacity: 1;
}

/* ============================================================
   MENÚ MOBILE
   ============================================================ */
@media (max-width: 900px) {
  .header {
    padding: 0 1.25rem;
  }

  .header-btns {
    display: flex;
    margin-left: auto;
  }

  .header-actions {
    display: none;
  }

  /* Nav mobile: panel deslizante desde arriba */
  .header-links {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--navy-dark);
    border-bottom: 3px solid var(--red);
    padding: 1rem 0;
    margin: 0;
    gap: 0;

    /* Estado oculto */
    clip-path: inset(0 0 100% 0);
    pointer-events: none;
    transition: clip-path 0.45s var(--ease-out-expo);
  }

  .header-links.mobile-open {
    clip-path: inset(0 0 0% 0);
    pointer-events: all;
  }

  .header-links-a {
    font-size: 1.05rem;
    padding: 0.85rem 1.5rem;
    border-left: 3px solid transparent;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  }

  .header-links-a::after {
    display: none;
  }

  .header-links-a:hover,
  .header-links-a.active-link {
    background: rgba(255, 255, 255, 0.06);
    border-left-color: var(--red);
    color: var(--white);
  }

  /* Stagger de entrada en cada link */
  .header-links-a:nth-child(1) { transition-delay: 0.05s; }
  .header-links-a:nth-child(2) { transition-delay: 0.1s; }
  .header-links-a:nth-child(3) { transition-delay: 0.15s; }
  .header-links-a:nth-child(4) { transition-delay: 0.2s; }
  .header-links-a:nth-child(5) { transition-delay: 0.25s; }
}

/* ============================================================
   ESPACIADO PARA CONTENIDO DEBAJO DEL HEADER
   ============================================================ */
.container-fluid {
  margin-top: var(--header-h);
}