/* FTN Sheet — shared foundation (js/ftn-sheet.js). Desktop: right-anchored panel. Mobile
   (<=640px): edge-to-edge bottom sheet. transform/opacity only for the open/close transition. */

.ftn-sheet {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 240;
}

.ftn-sheet.is-mounted {
  display: block;
}

.ftn-sheet__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(11, 11, 11, 0.55);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.ftn-sheet.is-open .ftn-sheet__backdrop {
  opacity: 1;
}

body.ftn-sheet-open {
  overflow: hidden;
}

.ftn-sheet__panel {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: min(420px, 100%);
  background: var(--color-white);
  box-shadow: var(--shadow-xl);
  padding: var(--space-32) var(--space-24);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.24s ease;
}

.ftn-sheet.is-open .ftn-sheet__panel {
  transform: translateX(0);
}

@media (max-width: 640px) {
  .ftn-sheet__panel {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: auto;
    max-height: 85vh;
    border-radius: var(--radius-16) var(--radius-16) 0 0;
    transform: translateY(100%);
  }

  .ftn-sheet.is-open .ftn-sheet__panel {
    transform: translateY(0);
  }
}

.ftn-sheet__close {
  position: absolute;
  top: var(--space-16);
  right: var(--space-16);
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-white);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

@media (prefers-reduced-motion: reduce) {
  .ftn-sheet__backdrop,
  .ftn-sheet__panel {
    transition: none;
  }
}