/* ============================================================
   USNAKA — Navegación
   nav.css
   ============================================================ */

@import url('variables.css');

/* ------------------------------------------------------------
   BASE NAV
   ------------------------------------------------------------ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  transition:
    background-color var(--duration-slow) var(--ease-default),
    box-shadow       var(--duration-slow) var(--ease-default);
  background-color: transparent;
}

.nav--scrolled {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

/* ------------------------------------------------------------
   INNER
   ------------------------------------------------------------ */
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 72px;
  padding: 0 var(--gutter-md);
  max-width: var(--container-wide);
  margin: 0 auto;
}

@media (min-width: 1200px) {
  .nav__inner {
    padding: 0 var(--gutter-lg);
  }
}

/* ------------------------------------------------------------
   LOGO
   ------------------------------------------------------------ */
.nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity var(--duration-fast) var(--ease-default);
  flex-shrink: 0;
}

.nav__logo:hover {
  opacity: 0.8;
}

.nav__logo-svg {
  height: 44px;
  width: auto;
  display: block;
}

.nav__logo-svg--white {
  opacity: 1;
  visibility: visible;
}

.nav__logo-svg--color {
  display: none;
  opacity: 0;
  visibility: hidden;
}

.nav--scrolled .nav__logo-svg--white {
  display: none;
}

.nav--scrolled .nav__logo-svg--color {
  display: block;
  opacity: 1;
  visibility: visible;
}

@media (max-width: 1023px) {
  .nav__logo-svg {
    height: 32px;
  }
}

/* ------------------------------------------------------------
   MENÚ ESCRITORIO
   ------------------------------------------------------------ */
.nav__menu {
  display: none;
}

@media (min-width: 1024px) {
  .nav__menu {
    display: block;
  }
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-dark);
  position: relative;
  padding-bottom: 3px;
  transition: color var(--duration-slow) var(--ease-default);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1.5px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-base) var(--ease-default);
}

.nav__link:hover::after,
.nav__link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav--scrolled .nav__link {
  color: var(--color-dark);
}

.nav--scrolled .nav__link:hover {
  color: var(--color-green-2);
}

/* ------------------------------------------------------------
   DROPDOWN ESCRITORIO
   ------------------------------------------------------------ */
.nav__item--dropdown {
  position: relative;
}

.nav__item--dropdown::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: var(--space-3); /* mismo valor que el gap del dropdown */
}

.nav__link--has-sub {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__link--has-sub svg {
  transition: transform var(--duration-base) var(--ease-default);
}

.nav__item--dropdown:hover .nav__link--has-sub svg {
  transform: rotate(180deg);
}

.nav__dropdown {
  display: none;
  position: absolute;
  top: calc(100% + var(--space-3));
  left: 0;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--space-2) 0;
  min-width: 220px;
  list-style: none;
  z-index: var(--z-dropdown);
}

.nav__item--dropdown:hover .nav__dropdown {
  display: block;
}

.nav__dropdown-link {
  display: block;
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-regular);
  color: var(--color-dark);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-default),
              background-color var(--duration-fast) var(--ease-default);
}

.nav__dropdown-link:hover {
  color: var(--color-green-2);
  background-color: var(--color-off-white);
}

/* ------------------------------------------------------------
   ACCIONES DERECHA — hamburguesa + WhatsApp
   ------------------------------------------------------------ */
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* ------------------------------------------------------------
   BOTÓN WHATSAPP
   ------------------------------------------------------------ */
.nav__whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-green-2);
  color: var(--color-white);
  border-radius: var(--radius-xl);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: background-color var(--duration-base) var(--ease-default),
              transform var(--duration-base) var(--ease-bounce);
}

.nav__whatsapp-btn:hover {
  background-color: var(--color-green-3);
  transform: translateY(-1px);
}

.nav__whatsapp-btn img {
  flex-shrink: 0;
}

.nav__whatsapp-text {
  display: none;
}

@media (min-width: 900px) {
  .nav__whatsapp-text {
    display: inline;
  }
}

/* ------------------------------------------------------------
   HAMBURGUESA
   ------------------------------------------------------------ */
.nav__burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

@media (min-width: 1024px) {
  .nav__burger {
    display: none;
  }
}

.nav__burger span {
  display: block;
  height: 1.5px;
  background-color: var(--color-dark);
  border-radius: 2px;
  transition:
    transform var(--duration-base) var(--ease-default),
    opacity var(--duration-base) var(--ease-default),
    background-color var(--duration-slow) var(--ease-default);
}

.nav--scrolled .nav__burger span {
  background-color: var(--color-dark);
}

.nav__burger--open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav__burger--open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav__burger--open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ------------------------------------------------------------
   MENÚ MÓVIL
   ------------------------------------------------------------ */
.nav__mobile {
  display: none;
  flex-direction: column;
  padding: var(--space-6) var(--gutter-md) var(--space-8);
  background-color: var(--color-white);
  border-top: 1px solid var(--color-gray-light);
}

.nav__mobile--open {
  display: flex;
}

@media (min-width: 1024px) {
  .nav__mobile {
    display: none !important;
  }
}

.nav__mobile-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav__mobile-link {
  display: block;
  padding: var(--space-3) 0;
  font-family: var(--font-body);
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--color-gray-light);
  transition: color var(--duration-fast) var(--ease-default);
}

.nav__mobile-link:hover {
  color: var(--color-green-2);
}

/* Acordeón móvil */
.nav__mobile-accordion-btn {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-bottom: 1px solid var(--color-gray-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-body);
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-dark);
  padding: var(--space-3) 0;
  transition: color var(--duration-fast) var(--ease-default);
}

.nav__mobile-accordion-btn:hover {
  color: var(--color-green-2);
}

.nav__mobile-accordion-btn svg {
  transition: transform var(--duration-base) var(--ease-default);
  flex-shrink: 0;
}

.nav__mobile-item--accordion.open .nav__mobile-accordion-btn svg {
  transform: rotate(180deg);
}

.nav__mobile-submenu {
  display: none;
  list-style: none;
  padding: var(--space-2) 0 var(--space-2) var(--space-4);
}

.nav__mobile-item--accordion.open .nav__mobile-submenu {
  display: block;
}

.nav__mobile-sublink {
  display: block;
  padding: var(--space-2) 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-light);
  color: var(--color-dark);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-default);
}

.nav__mobile-sublink:hover {
  color: var(--color-green-2);
}

/* Social móvil */
.nav__mobile-social {
  display: flex;
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.nav__mobile-social a {
  color: var(--color-dark);
  transition: color var(--duration-fast) var(--ease-default);
}

.nav__mobile-social a:hover {
  color: var(--color-green-2);
}