/* ─────────────────────────────────────────
   layout.css — Nav, Footer, Grids globales
   Tequila Mapelo © 2026
   Eduardo López
───────────────────────────────────────── */

/* ── NAV ── */
nav#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  padding: 32px var(--side-pad);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: padding .4s var(--ease-smooth),
    background .4s,
    border-color .4s;
  border-bottom: 1px solid transparent;
}

nav#nav.pinned {
  padding: 18px var(--side-pad);
  background: rgba(18, 17, 16, .96);
  border-color: var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-logo {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .5em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--perla);
}

.nav-logo span {
  color: var(--agave);
}

.nav-links {
  display: flex;
  gap: 40px;
}

.nav-links a {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color .3s;
}

.nav-links a:hover {
  color: var(--perla);
}

.nav-cta {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--carbon);
  background: var(--agave);
  padding: 12px 24px;
  text-decoration: none;
  transition: background .3s;
}

.nav-cta:hover {
  background: var(--gold);
}

/* ── FOOTER ── */
footer {
  padding: 36px var(--side-pad);
  border-top: 1px solid var(--border);
  background: var(--carbon3);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.ft-logo {
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .4em;
  text-transform: uppercase;
  color: var(--muted2);
}

.ft-copy,
.ft-age {
  font-size: 8px;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: rgba(240, 234, 216, .12);
}

/* ── HAMBURGER BUTTON ── */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  padding: 4px;
  cursor: none;
  z-index: 600;
}

.nav-burger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--perla);
  transition: transform .3s var(--ease-smooth), opacity .2s;
  transform-origin: center;
}

/* Hamburger → X */
.nav-open .nav-burger span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-open .nav-burger span:nth-child(2) {
  opacity: 0;
}

.nav-open .nav-burger span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ── RESPONSIVE LAYOUT ── */
@media (max-width: 768px) {
  nav#nav {
    padding: 20px var(--side-pad);
  }

  nav#nav.pinned {
    padding: 14px var(--side-pad);
  }

  .nav-burger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    inset: 0;
    background: rgba(12, 11, 10, .97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    z-index: 550;
    opacity: 0;
    visibility: hidden;
    transition: opacity .4s var(--ease-smooth), visibility .4s;
  }

  .nav-open .nav-links {
    opacity: 1;
    visibility: visible;
  }

  .nav-links li {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .3s var(--ease-out), transform .3s var(--ease-out);
  }

  .nav-open .nav-links li {
    opacity: 1;
    transform: translateY(0);
  }

  .nav-open .nav-links li:nth-child(1) {
    transition-delay: .1s;
  }

  .nav-open .nav-links li:nth-child(2) {
    transition-delay: .15s;
  }

  .nav-open .nav-links li:nth-child(3) {
    transition-delay: .2s;
  }

  .nav-open .nav-links li:nth-child(4) {
    transition-delay: .25s;
  }

  .nav-open .nav-links li:nth-child(5) {
    transition-delay: .3s;
  }

  .nav-links a {
    font-size: 14px;
    letter-spacing: .3em;
    padding: 20px 0;
    display: block;
    color: var(--perla);
  }

  .nav-cta {
    display: none;
  }

  footer {
    flex-direction: column;
    text-align: center;
  }
}