/* Modal overlay + dialog. Spec §6.5. Safe-area aware. */

#modal-root {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 10, 0.4);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  opacity: 0;
  transition: opacity var(--d-med) var(--ease-out);
  pointer-events: none;
}

.modal-dialog {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, calc(-50% + 32px)) scale(0.98);
  filter: blur(4px);
  opacity: 0;
  width: min(640px, calc(100vw - 32px));
  max-height: min(85dvh, calc(100dvh - env(safe-area-inset-top) - env(safe-area-inset-bottom) - 32px));
  padding: 6px;
  border-radius: var(--r-xl);
  background: var(--surface-shell);
  box-shadow: inset 0 0 0 1px var(--hairline);
  transition:
    opacity var(--d-med) var(--ease-out),
    transform var(--d-med) var(--ease-out),
    filter var(--d-med) var(--ease-out);
  pointer-events: none;
}

#modal-root.is-open { pointer-events: auto; }
#modal-root.is-open .modal-overlay { opacity: 1; pointer-events: auto; }
#modal-root.is-open .modal-dialog {
  transform: translate(-50%, -50%) scale(1);
  filter: blur(0);
  opacity: 1;
  pointer-events: auto;
}

.modal-core {
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow:
    var(--shadow-card),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  padding: var(--s-8)
           max(var(--s-8), env(safe-area-inset-right))
           max(var(--s-8), env(safe-area-inset-bottom))
           max(var(--s-8), env(safe-area-inset-left));
  max-height: inherit;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: max(var(--s-5), env(safe-area-inset-top));
  right: max(var(--s-5), env(safe-area-inset-right));
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-2) var(--s-3) var(--s-2) var(--s-4);
  border-radius: var(--r-pill);
  background: var(--surface-shell);
  box-shadow: inset 0 0 0 1px var(--hairline);
  font-size: var(--t-eyebrow-size);
  letter-spacing: var(--t-eyebrow-track);
  text-transform: uppercase;
  color: var(--ink-muted);
  transition:
    transform var(--d-fast) var(--ease-out),
    color var(--d-fast) var(--ease-out);
}
.modal-close:hover { color: var(--ink); }
.modal-close:active { transform: scale(0.98); }
.modal-close__icon {
  width: 28px;
  height: 28px;
  border-radius: var(--r-pill);
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--hairline);
  display: inline-grid;
  place-items: center;
  transition: transform var(--d-fast) var(--ease-out);
}
.modal-close:hover .modal-close__icon { transform: translate(1px, -1px) scale(1.05); }

.modal-eyebrow {
  font-family: var(--font-body);
  font-size: var(--t-eyebrow-size);
  letter-spacing: var(--t-eyebrow-track);
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: var(--s-3);
}
.modal-num {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: var(--t-tile-num);
  letter-spacing: -0.04em;
  color: var(--ink-faint);
  line-height: 0.9;
  margin-bottom: var(--s-2);
}
.modal-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--t-h2);
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: var(--s-2);
  max-width: 28ch;
}
.modal-subtitle {
  color: var(--ink-muted);
  margin-bottom: var(--s-7);
  max-width: 48ch;
}

.modal-section { margin-bottom: var(--s-7); }
.modal-section__eyebrow {
  font-size: var(--t-eyebrow-size);
  letter-spacing: var(--t-eyebrow-track);
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--s-3);
  font-weight: 500;
}
.modal-section--warn .modal-section__eyebrow { color: var(--warn); }

.modal-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* Choice block inside modal */
.choice {
  padding: var(--s-4);
  border-radius: var(--r-md);
  background: var(--surface-shell);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
.choice__prompt {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  color: var(--ink);
}
.choice__clear {
  font-size: var(--t-eyebrow-size);
  letter-spacing: var(--t-eyebrow-track);
  text-transform: uppercase;
  color: var(--ink-faint);
}
.choice__clear[hidden] { display: none; }
.choice__options {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* When modal open: lock background */
html.is-modal-open { overflow: hidden; }