@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&display=swap');
html { scroll-padding-top: 80px; }
body { font-family: 'Inter', sans-serif; }
section[id], footer[id] { scroll-margin-top: 80px; }
.neon-glow { text-shadow: 0 0 10px rgba(204, 255, 0, 0.5); }
.neon-border { box-shadow: 0 0 15px rgba(204, 255, 0, 0.2); }

/* Menú móvil */
.nav-mobile-panel {
  max-height: 0;
  opacity: 0;
  pointer-events: none;
  transition: max-height 0.32s ease-out, opacity 0.28s ease-out;
}
#site-nav.is-open .nav-mobile-panel {
  max-height: min(85vh, 32rem);
  opacity: 1;
  pointer-events: auto;
}
.nav-mobile-backdrop {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease-out;
}
#site-nav.is-open ~ .nav-mobile-backdrop {
  opacity: 1;
  pointer-events: auto;
}
body.nav-mobile-open {
  overflow: hidden;
}
#site-nav.is-open .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
#site-nav.is-open .hamburger-line:nth-child(2) {
  opacity: 0;
}
#site-nav.is-open .hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}
.hamburger-line {
  transition: transform 0.25s ease, opacity 0.2s ease;
}

/* Payment modal */
#payment-modal { overflow-y: auto; }
.payment-input.is-invalid {
  border-color: rgba(248, 113, 113, 0.7);
  background: rgba(248, 113, 113, 0.06);
}
details > summary { list-style: none; }
details > summary::-webkit-details-marker { display: none; }
details[open] .details-chevron { transform: rotate(180deg); }
#coupon-code { letter-spacing: 0.04em; }
button#go-to-payment[disabled] { cursor: not-allowed; }