/* ============================================
   HEADER.CSS - Header unificado para todo el sitio
   Mismas variables que estilos-concesionaria.css
   ============================================ */

/* ============ VARIABLES (fallback) ============ */
:root {
  --rojo: #d81e2c;
  --rojo-oscuro: #a8141f;
  --negro: #161616;
  --gris-90: #2e2e2e;
  --gris-60: #6f6f6f;
  --gris-30: #c9c9c9;
  --gris-15: #e2e2e2;
  --gris-10: #f0f0f0;
  --blanco: #ffffff;
  --fondo: #f7f7f7;
  --rojo-suave: rgba(216, 30, 44, 0.07);
  --sombra: 0 3px 12px rgba(0, 0, 0, 0.07);
  --sombra-hover: 0 8px 22px rgba(0, 0, 0, 0.12);
  --radio: 6px;
  --radio-sm: 3px;
  --transicion: all 0.22s ease;
}

/* ============ TOP BAR ============ */
.top-bar {
  background: var(--negro);
  color: var(--blanco);
  text-align: center;
  padding: 10px 0;
  font-weight: 600;
  font-size: 0.9rem;
  overflow: hidden;
  white-space: nowrap;
  position: relative;
  z-index: 10;
  border-bottom: 2px solid var(--rojo);
}

.top-bar span {
  display: inline-block;
  animation: topBarScroll 50s linear infinite;
  padding-left: 100%;
}

@keyframes topBarScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-100%); }
}

@media (prefers-reduced-motion: reduce) {
  .top-bar span {
    animation: none;
    padding-left: 0;
  }
}

/* ============ HEADER BASE ============ */
header {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--sombra);
  border-bottom: 2px solid transparent;
  transition: transform 0.3s ease,
              background 0.25s ease,
              border-color 0.25s ease,
              box-shadow 0.25s ease;
  will-change: transform;
}

header:hover {
  background: rgba(255, 255, 255, 1);
  border-bottom-color: var(--rojo);
}

/* Auto-hide al hacer scroll */
header.header-hidden {
  transform: translateY(-100%);
}

header.header-visible {
  transform: translateY(0);
}

/* Container (fallback si no está definido en otro CSS) */
header .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  flex-wrap: wrap;
  position: relative;
}

/* ============ LOGO ============ */
header .logo {
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: var(--transicion);
}

header .logo:hover {
  transform: scale(1.02);
}

header .logo img {
  width: 150px;
  height: 50px;
  object-fit: contain;
  display: block;
}

/* ============ CONTACT INFO (desktop) ============ */
header .contact-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

header .contact-btn {
  background: var(--rojo);
  color: white;
  border: none;
  padding: 10px 22px;
  border-radius: var(--radio-sm);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: var(--transicion);
  font-family: inherit;
  font-size: 0.9rem;
}

header .contact-btn:hover {
  background: var(--rojo-oscuro);
  transform: translateY(-2px);
}

header .contact-btn:active {
  transform: translateY(0);
}

header .phone-number {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--gris-10);
  padding: 10px 18px;
  border-radius: var(--radio-sm);
  color: var(--negro);
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transicion);
  border: 1px solid transparent;
}

header .phone-number:hover {
  border-color: var(--rojo);
}

header .phone-number i {
  color: var(--rojo);
}

/* ============ BOTÓN HAMBURGUESA ============ */
header .nav-mobile {
  display: none;
  border: none;
  width: 44px;
  height: 44px;
  cursor: pointer;
  position: relative;
  padding: 0;
  margin: 0;
  z-index: 60;
  border-radius: var(--radio-sm);
  transition: background 0.2s ease, transform 0.15s ease;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}



header .nav-mobile:active {
  transform: scale(0.94);
}

/* Las 3 líneas del hamburger */
header .nav-mobile .hamburger {
  position: relative;
  width: 22px;
  height: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

header .nav-mobile .hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--blanco);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Animación a X */
header .nav-mobile.active {
  background: var(--rojo);
}

header .nav-mobile.active .hamburger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

header .nav-mobile.active .hamburger span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

header .nav-mobile.active .hamburger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============ NAV DESKTOP ============ */
header nav {
  display: flex;
  gap: 4px;
}

header nav a {
  color: var(--negro);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--radio-sm);
  font-weight: 500;
  transition: var(--transicion);
  white-space: nowrap;
  position: relative;
  font-size: 0.95rem;
}

header nav a:hover {
  background: var(--gris-10);
  color: var(--rojo);
}

header nav a.active {
  background: var(--rojo);
  color: white;
}

header nav a.active:hover {
  background: var(--rojo-oscuro);
  color: white;
}

/* ============================================
   RESPONSIVE - MOBILE (≤ 968px)
   ============================================ */
@media (max-width: 968px) {

  /* Ocultar top-bar */
  .top-bar {
    display: none;
  }

  /* Header en mobile */
  header .header-content {
    min-height: 65px;
    gap: 10px;
    padding: 10px 0;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
    position: relative;
  }

  /* Ocultar botón contáctame y teléfono */
  header .contact-info {
    display: none !important;
  }

  /* Logo proporcional */
  header .logo {
    flex: 0 1 auto;
    max-width: 60%;
  }

  header .logo img {
    width: 150px;
    height: auto;
    max-height: 42px;
  }

  /* Mostrar botón hamburguesa */
  header .nav-mobile {
    display: flex;
    margin-left: auto;
  }

  /* ============ NAV DESPLEGABLE ============ */
  header nav {
    display: flex;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    width: 100%;
    flex-direction: column;
    background: white;
    padding: 0 12px;
    border-radius: 0 0 var(--radio) var(--radio);
    box-shadow: var(--sombra-hover);
    gap: 2px;
    margin: 0;

    /* Estado cerrado */
    max-height: 0;
    opacity: 0;
    transform: translateY(-12px);
    overflow: hidden;
    pointer-events: none;
    visibility: hidden;

    transition: max-height 0.4s ease,
                opacity 0.3s ease,
                transform 0.3s ease,
                padding 0.3s ease,
                visibility 0s linear 0.4s;
  }

  header nav.open {
    max-height: 500px;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    visibility: visible;
    padding: 12px;
    transition: max-height 0.4s ease,
                opacity 0.3s ease,
                transform 0.3s ease,
                padding 0.3s ease,
                visibility 0s linear 0s;
  }

  header nav a {
    text-align: center;
    padding: 14px 16px;
    border-radius: var(--radio-sm);
    color: var(--negro);
    font-weight: 500;
    font-size: 0.95rem;
    opacity: 0;
    transform: translateX(-12px);
    display: block;
    transition: background 0.2s ease, color 0.2s ease;
  }

  /* Animación escalonada de los links */
  header nav.open a {
    animation: navLinkIn 0.3s ease forwards;
  }

  header nav.open a:nth-child(1) { animation-delay: 0.06s; }
  header nav.open a:nth-child(2) { animation-delay: 0.11s; }
  header nav.open a:nth-child(3) { animation-delay: 0.16s; }
  header nav.open a:nth-child(4) { animation-delay: 0.21s; }
  header nav.open a:nth-child(5) { animation-delay: 0.26s; }
  header nav.open a:nth-child(6) { animation-delay: 0.31s; }

  @keyframes navLinkIn {
    from {
      opacity: 0;
      transform: translateX(-12px);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }

  header nav a:hover,
  header nav a.active {
    background: var(--rojo);
    color: var(--blanco);
  }

  @media (prefers-reduced-motion: reduce) {
    header nav.open a {
      animation: none;
      opacity: 1;
      transform: none;
    }
  }
}

/* ============================================
   RESPONSIVE - SMALL MOBILE (≤ 480px)
   ============================================ */
@media (max-width: 480px) {
  header .container {
    padding: 0 14px;
  }

  header .logo img {
    width: 130px;
    max-height: 38px;
  }

  header .nav-mobile {
    width: 40px;
    height: 40px;
  }

  header .nav-mobile .hamburger {
    width: 20px;
    height: 15px;
  }

  header nav a {
    padding: 13px 14px;
    font-size: 0.9rem;
  }
}

/* ============================================
   MODO OSCURO (opcional)
   ============================================ */
body.dark-mode header {
  background: rgba(22, 22, 22, 0.92);
  border-bottom-color: rgba(216, 30, 44, 0.3);
}

body.dark-mode header:hover {
  background: rgba(22, 22, 22, 1);
}

body.dark-mode header nav a {
  color: #e6e6e6;
}

body.dark-mode header nav a:hover {
  background: rgba(216, 30, 44, 0.15);
  color: var(--rojo);
}

body.dark-mode header nav {
  background: var(--gris-90);
}

body.dark-mode header .phone-number {
  background: rgba(255, 255, 255, 0.08);
  color: #e6e6e6;
}