/* modal-core.css · Toggle + backdrop + panel + close + header + a11y */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.18s linear, visibility 0s linear 0.18s;
}

html:has(#diagnostico-toggle:checked) .modal {
  visibility: visible;
  opacity: 1;
  transition: opacity 0.18s linear, visibility 0s linear 0s;
}

html:has(#diagnostico-toggle:checked) {
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: pan-x pan-y;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 8, 15, 0.78);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  cursor: pointer;
  z-index: 0;
}

.modal__panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 560px;
  max-height: calc(100vh - 2rem);
  max-height: calc(100dvh - 2rem);
  overflow-y: auto;
  overscroll-behavior: none;
  -webkit-overflow-scrolling: touch;
  background: var(--color-bg-cyber);
  color: var(--color-text-cyber);
  font-family: var(--font-mono-cyber);
  border: 1px solid var(--color-accent-cyber);
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem 1.75rem;
  box-shadow:
    0 0 0 1px var(--color-glow-cyber),
    0 12px 48px rgba(0, 0, 0, 0.55),
    0 0 32px var(--color-glow-cyber);
  mask-image: linear-gradient(to bottom,
    black 0,
    black calc(100% - 24px),
    rgba(0, 0, 0, 0.6) calc(100% - 16px),
    rgba(0, 0, 0, 0.2) calc(100% - 8px),
    rgba(0, 0, 0, 0.05) 100%);
  -webkit-mask-image: linear-gradient(to bottom,
    black 0,
    black calc(100% - 24px),
    rgba(0, 0, 0, 0.6) calc(100% - 16px),
    rgba(0, 0, 0, 0.2) calc(100% - 8px),
    rgba(0, 0, 0, 0.05) 100%);
}

.modal__scroll-hint {
  position: sticky;
  bottom: 0.25rem;
  display: flex;
  justify-content: flex-end;
  padding-right: 0.5rem;
  pointer-events: none;
  z-index: 2;
  animation: scroll-hint-bounce 1.6s ease-in-out infinite;
}

.modal__scroll-hint svg {
  width: 22px;
  height: 22px;
  color: var(--color-accent-cyber);
  filter: drop-shadow(0 0 6px var(--color-glow-cyber));
  opacity: 0.95;
}

.modal__panel--scrolled-bottom .modal__scroll-hint {
  display: none;
}

@keyframes scroll-hint-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50% { transform: translateY(4px); opacity: 1; }
}

.modal__close {
  position: absolute;
  top: 0.5rem;
  right: 0.85rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--color-text-cyber-mut);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color 0.12s ease, background-color 0.12s ease;
}

.modal__close:hover {
  color: var(--color-accent-cyber);
  background-color: var(--color-glow-cyber);
}

.modal__header {
  margin-bottom: 1.5rem;
  padding-right: 1.5rem;
}

.modal__eyebrow {
  color: var(--color-accent-cyber);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  opacity: 0.85;
}

.modal__title {
  color: var(--color-text-cyber);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 0.5rem;
}

.modal__sub {
  color: var(--color-text-cyber-mut);
  font-size: 0.85rem;
  line-height: 1.4;
  margin: 0;
}

.modal__close:focus-visible {
  outline: 2px solid #00FF66;
  outline-offset: 2px;
}