/* barra superior fija siempre visible */
.header {
  position: fixed; /* se queda pegado arriba al hacer scroll */
  top: 0;
  width: 100%; /* ocupa todo el ancho */

  display: flex; /* layout flexible */
  justify-content: space-between; /* logo izquierda, menú derecha */
  align-items: center; /* centra verticalmente */

  padding: 1rem 3rem; /* espacio interno */

  backdrop-filter: blur(14px); /* efecto cristal */
  background: var(--header-bg); /* color semitransparente */

  border-bottom: 1px solid var(--border-color); /* línea inferior sutil */

  z-index: 1100; /* se pone por encima de todo */

  transition: padding 0.3s ease; /* animación cuando cambia tamaño */
}

/* estado cuando haces scroll (JS añade esta clase) */
.header.scrolled {
  padding: 0.6rem 3rem; /* header más pequeño al bajar */
}
.header.scrolled .logo img {
  width: 175px;
}
.header.scrolled .nav-links {
  font-size: 16px;
}
.header.scrolled .header-phone {
  font-size: 0.9rem;
}

/* =========================
   🪪 LOGO
   ========================= */

.logo {
  font-family: "Cormorant Garamond", serif; /* estilo elegante */
  font-size: 1.7rem;
  font-weight: 700;

  /* texto con degradado */
  background: var(--gradient-title);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent; /* necesario para que se vea el gradiente */
  padding-left: 2rem;
}
.logo img {
  width: 200px;
  height: auto;
  display: block;
  transition: 0.3s ease; /* animación cuando cambia tamaño */
}
/* =========================
   🔗 MENÚ DE NAVEGACIÓN
   ========================= */

.div-nav {
  display: flex;
}

.nav-links {
  display: flex; /* enlaces en fila */
  gap: 4rem; /* separación entre links */
  align-items: center;
  font-size: 19.5px;
  transition: 0.3s ease;
}

/* enlaces individuales */
.nav-links a {
  text-decoration: none; /* quita subrayado */
  color: var(--text-secondary);
  font-weight: 600;
  font-size: larger;
  transition: color 0.2s; /* hover suave */

  position: relative; /* necesario para la línea animada */
  font-family: "Source Sans Pro", sans-serif;
}
.nav-links li {
  list-style: none;

  position: relative;
}

.submenu {
  position: absolute;
  top: 100%;
  left: 0;

  background: var(--header-bg);
  min-width: 190px;
  padding: 9px 0;
  list-style: none;

  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);

  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);

  transition:
    opacity 0.3s ease,
    transform 0.3s ease,
    visibility 0s linear 0.3s;
}

.has-submenu > a {
  display: flex;
  align-items: center;
  gap: 6px;
}

.has-submenu > a i {
  font-size: 12px;
  transition: transform 0.25s ease;
  position: relative;
  top: 2px; /* Baja la flecha */
}

.has-submenu:hover > a i {
  transform: rotate(180deg);
}

.submenu li a {
  display: block;
  width: 100%;

  padding: 12px 18px;

  text-decoration: none;
  color: var(--text-secondary);
  font-size: medium;
}
/* Mostrar submenu */
.has-submenu:hover .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);

  transition-delay: 0s;
}
.submenu li a:hover {
  background: var(--submenu-hover-bg) !important;
}

/* línea animada debajo del enlace */
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;

  width: 0; /* empieza invisible */
  height: 2px;

  background: var(--accent-light);

  transition: width 0.3s ease; /* animación de expansión */
}

/* al pasar el ratón aparece la línea */
.nav-links a:hover::after {
  width: 100%;
}

/* =========================
   🌙 BOTÓN TEMA (LIGHT/DARK)
   ========================= */

.theme-toggle {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;

  color: var(--text-primary);
}

/* =========================
   🍔 MENÚ MÓVIL (ICONO HAMBURGUESA)
   ========================= */

.menu-icon {
  display: none; /* oculto en desktop */
  font-size: 1.8rem;
  cursor: pointer;

  background: none;
  border: none;
  color: var(--text-primary);
}

/* ============================================================
   ACCIONES DEL HEADER (Teléfono + Tema)
   ============================================================ */

.header-actions {
  display: flex;
  align-items: center;
  gap: 4rem;
  flex-shrink: 0;
}

/* 📞 Teléfono */
.header-phone {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent);
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 600;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  background: var(--bg-secondary);
}

.header-phone:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  transform: scale(1.03);
  box-shadow: 0 4px 20px rgba(125, 150, 98, 0.3);
}

.header-phone .phone-icon {
  flex-shrink: 0;
}

.theme-toggle svg {
  width: 22px;
  height: 22px;
  display: block;
}

.theme-switch__label {
  position: relative;
  display: inline-block;
  cursor: pointer;
  transition: background-color 0.2s ease-in-out;
  width: 58px;
  height: 25px;
  border-radius: 50px;
  text-align: center;
  background: linear-gradient(to left, var(--accent), var(--clr-40));
  box-shadow: inset -4px 4px 15px rgba(0, 0, 0, 0.4);
}

/* Ocultar el checkbox */
.theme-switch__input {
  opacity: 0;
  position: absolute;
  width: 0;
  height: 0;
}

/* Icono de la luna (modo oscuro) */
.theme-switch__label::before {
  content: "☼";
  position: absolute;
  right: 100%;
  margin-right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 20px;
}

/* Icono del sol (modo claro) */
.theme-switch__label::after {
  content: "☾";
  position: absolute;
  left: 100%;
  margin-left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 20px;
}

/* Contenedor del botón deslizante */
.theme-switch__label span {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 0;
  width: 100%;
}

/* Botón deslizante (el círculo) */
.theme-switch__label span::after {
  position: absolute;
  top: calc(100% + 11px);
  left: 4px;
  width: 22px;
  height: 22px;
  content: "";
  border-radius: 50%;
  background-color: #fdf6e3;
  transition:
    transform 0.2s ease-in-out,
    background-color 0.2s ease-in-out;
  box-shadow: -3px 3px 8px rgba(0, 0, 0, 0.4);
}

/* Estado: Modo oscuro activado */
.theme-switch__input:checked ~ .theme-switch__label span::after {
  transform: translate3d(27px, 0, 0);
}

/* Efecto hover para mejor UX */
.theme-switch__label:hover {
  opacity: 0.85;
}

/* Enfoque para accesibilidad */
.theme-switch__input:focus-visible + .theme-switch__label {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 50px;
}

/* Modo oscuro - cambiar colores del botón */
.theme-switch__input:checked ~ .theme-switch__label {
  background: linear-gradient(to right, var(--accent), var(--clr-40));
}

/* Animación suave para el fondo */
.theme-switch__label,
.theme-switch__label span::after {
  transition: all 0.2s ease-in-out;
}

.theme-mobile-item {
  display: none;
}

/* =========================
   TABLET 1200px
   ========================= */

@media (max-width: 1200px) {
  .header {
    padding: 0.9rem 2rem;
  }

  .header.scrolled {
    padding: 0.6rem 2rem;
  }

  .logo img {
    width: 160px;
  }

  .nav-links {
    gap: 2rem;
  }

  .nav-links a {
    font-size: 1rem;
  }

  .header-actions {
    gap: 2.5rem;
  }
}

/* =========================
   TABLET 992px
   ========================= */

@media (max-width: 992px) {
  .logo img {
    width: 145px;
  }

  .nav-links {
    gap: 1.2rem;
  }

  .nav-links a {
    font-size: 0.95rem;
  }

  .header-phone span {
    display: none;
  }

  .header-phone {
    width: 42px;

    height: 42px;

    justify-content: center;

    padding: 0;
  }
}

/* =========================
   MOVIL 768px
   ========================= */

@media (max-width: 768px) {
  .header {
    padding: 0.8rem 1rem;
  }

  .logo img {
    width: 130px;
  }

  .menu-icon {
    display: flex;
  }

  .header-actions {
    display: none;
  }

  /* MENU */

  .nav-links {
    position: absolute;

    top: 100%;

    left: 0;

    width: 100%;

    flex-direction: column;

    gap: 0;

    background: var(--header-bg);

    border-top: 1px solid var(--border-color);

    max-height: 0;

    overflow: hidden;

    opacity: 0;

    transform: translateY(-10px);

    transition:
      max-height 0.35s ease,
      opacity 0.25s ease,
      transform 0.25s ease;
  }

  .nav-links.active {
    max-height: calc(100vh - 80px);

    opacity: 1;

    transform: translateY(0);
  }

  .nav-links li {
    width: 100%;

    text-align: center;
  }

  .nav-links li:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
  }

  .nav-links a {
    display: flex;

    justify-content: center;

    align-items: center;

    padding: 0.4rem;

    font-size: 1rem;
  }

  /* SUBMENU MOVIL */

  .submenu {
    position: relative;

    top: 0;

    left: 0;

    width: 100%;

    max-height: 0;

    overflow: hidden;

    box-shadow: none;

    border-radius: 0;

    opacity: 1;

    visibility: visible;

    transform: none;

    transition: max-height 0.3s ease;
  }

  .has-submenu.open .submenu {
    max-height: 500px;
  }

  .submenu li a {
    padding-left: 2.5rem;

    font-size: 0.95rem;
  }

  /* ocultar switch desktop */

  .div-light {
    display: none;
  }

  /* tema movil */

  .theme-mobile-item {
    display: block;

    border-top: 1px solid var(--border-color);
  }

  .theme-mobile-btn {
    width: 100%;

    display: flex;

    justify-content: center;

    align-items: center;

    gap: 0.8rem;

    padding: 1rem;

    background: none;

    border: none;

    color: var(--text-primary);

    font-size: 1rem;

    font-weight: 600;

    cursor: pointer;
  }

  .theme-mobile-btn i {
    color: var(--accent);
  }
}