/* =============================================================
   Inteli-K — Mobile nav (burger + drawer)
   Shared by all pages that use V4Nav (servicios, nosotros, plataformas).
   index5.html already inherits these rules from site5.css.
   ============================================================= */


/* =============================================================
   v5 — NAV mobile/responsive
   - <881px: hide desktop links + CTA label, show burger
   - drawer slides down from the bar
   - >880px: burger hidden, desktop nav as before
   ============================================================= */

/* Burger button — desktop default: hidden */
.nav__burger {
  display: none;
  width: 42px; height: 42px;
  align-items: center; justify-content: center;
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 999px;
  cursor: pointer;
  padding: 0;
  transition: background .2s, border-color .2s;
}
.nav__burger:hover { background: rgba(14,14,12,.04); border-color: var(--ink); }
.nav__burger-lines {
  position: relative;
  display: block;
  width: 18px; height: 12px;
}
.nav__burger-lines > span {
  position: absolute;
  left: 0; right: 0;
  height: 1.6px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform .3s var(--ease-out), opacity .2s, top .3s var(--ease-out);
}
.nav__burger-lines > span:nth-child(1) { top: 0; }
.nav__burger-lines > span:nth-child(2) { top: calc(50% - 0.8px); }
.nav__burger-lines > span:nth-child(3) { top: calc(100% - 1.6px); }
.nav.is-menu-open .nav__burger-lines > span:nth-child(1) {
  top: calc(50% - 0.8px); transform: rotate(45deg);
}
.nav.is-menu-open .nav__burger-lines > span:nth-child(2) {
  opacity: 0;
}
.nav.is-menu-open .nav__burger-lines > span:nth-child(3) {
  top: calc(50% - 0.8px); transform: rotate(-45deg);
}

/* Drawer container — desktop default: hidden / inert */
.nav__drawer {
  display: none;
}

/* =============== Mobile breakpoint =============== */
/* Raised to 1000px: with 6 nav items + CTA the desktop row needs ~1000px
   to fit, so the drawer takes over below that to avoid a cramped overflow. */
@media (max-width: 1000px) {
  .nav__row { height: 64px; }
  .nav__brand img { height: 24px; }

  /* The desktop link list is already hidden by the earlier rule. */
  .nav__links { display: none; }

  /* Hide the CTA in the bar — it lives inside the drawer at mobile.
     Keep the lang-toggle so language is one tap away. */
  .nav__cta { display: none; }

  /* Show the burger */
  .nav__burger { display: inline-flex; }
  .nav__right { gap: 8px; }

  /* Drawer */
  .nav__drawer {
    display: block;
    position: fixed;
    top: 64px; /* under the bar */
    left: 0; right: 0;
    bottom: 0;
    background: var(--bg);
    z-index: 49;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition:
      opacity .28s var(--ease-out),
      transform .32s var(--ease-out),
      visibility 0s linear .32s;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .nav.is-menu-open .nav__drawer {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition:
      opacity .28s var(--ease-out),
      transform .32s var(--ease-out),
      visibility 0s linear 0s;
  }

  .nav__drawer-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 32px var(--pad-x) 48px;
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .nav__drawer-link {
    display: flex;
    align-items: center;
    padding: 18px 4px;
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 24px;
    letter-spacing: -0.012em;
    color: var(--ink);
    border-bottom: 1px solid var(--rule);
    transition: color .2s, padding .25s var(--ease-out);
  }
  .nav__drawer-link:hover,
  .nav__drawer-link.is-active {
    color: var(--accent-deep);
    padding-left: 8px;
  }
  .nav__drawer-link--platforms { gap: 12px; }
  .nav__drawer-link--platforms .nav__link-dot { width: 8px; height: 8px; }

  /* Services sub-section indented under the parent */
  .nav__drawer-group {
    display: flex;
    flex-direction: column;
  }
  .nav__drawer-sub {
    display: flex;
    flex-direction: column;
    padding: 6px 0 14px 16px;
    border-bottom: 1px solid var(--rule);
    margin-top: -1px; /* swallow the parent's border so they read as one block */
  }
  .nav__drawer-sublink {
    padding: 10px 0;
    font-size: 15px;
    color: var(--ink-soft);
    transition: color .2s, transform .2s var(--ease-out);
  }
  .nav__drawer-sublink:hover {
    color: var(--accent-deep);
    transform: translateX(3px);
  }

  .nav__drawer-foot {
    padding-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .nav__drawer-cta {
    height: 56px;
    justify-content: center;
    width: 100%;
    font-size: 16px;
  }
}

/* Tighter on small phones: shorter bar, smaller padding, more breathing room */
@media (max-width: 480px) {
  .nav__row { height: 60px; }
  .nav__brand img { height: 22px; }
  .nav__drawer { top: 60px; }
  .lang-toggle button { padding: 0 10px; font-size: 12px; }
  .nav__drawer-link { font-size: 22px; padding: 16px 4px; }
}

/* Lock scroll behind the open drawer */
body:has(.nav.is-menu-open) { overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  .nav__drawer,
  .nav__burger-lines > span { transition: none !important; }
}