/* ASCII art modal and README bottom-sheet */

.ascii-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(0.5rem, env(safe-area-inset-top)) max(0.5rem, env(safe-area-inset-right))
    max(0.5rem, env(safe-area-inset-bottom)) max(0.5rem, env(safe-area-inset-left));
}

.ascii-modal[hidden] {
  display: none !important;
}

.ascii-modal:not([hidden]) {
  pointer-events: auto;
  overscroll-behavior: contain;
  touch-action: none;
}

.ascii-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(14, 18, 22, 0.42);
  opacity: 0;
  transition: opacity 0.22s var(--ease-out);
  cursor: var(--ascii-modal-cursor, pointer);
  -webkit-tap-highlight-color: transparent;
}

.ascii-modal--open .ascii-modal__backdrop {
  opacity: 1;
}

.ascii-modal__card {
  position: relative;
  z-index: 1;
  width: min(100%, 24rem);
  max-width: calc(100vw - 1.25rem);
  border: 3px solid var(--ink-900);
  border-radius: var(--radius-xl);
  background: var(--cream-50);
  box-shadow: var(--bubble-shadow-hover);
  opacity: 0;
  transform: scale(0.88) translateY(12px);
  transition:
    opacity 0.28s var(--ease-out),
    transform 0.4s var(--ease-bounce),
    filter 0.35s ease;
  transform-style: preserve-3d;
}

.ascii-modal--open .ascii-modal__card {
  opacity: 1;
  transform: scale(1) translateY(0);
  filter: none;
}

.ascii-modal__pre-wrap {
  width: 100%;
  height: min(68dvh, 19rem);
  max-height: min(68dvh, 19rem);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  box-sizing: border-box;
}

.ascii-modal__pre {
  margin: 0;
  padding: 0.55rem 0.65rem 0.55rem 0.85rem;
  width: max-content;
  max-width: 100%;
  box-sizing: border-box;
  font-family: ui-monospace, "Cascadia Code", "Consolas", monospace;
  font-size: 12px;
  line-height: 1.16;
  letter-spacing: 0;
  color: var(--ink-900);
  white-space: pre;
  text-align: left;
  overflow: hidden;
  flex-shrink: 0;
  -webkit-font-smoothing: antialiased;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.ascii-modal__pre::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.ascii-modal__card--enter-pop {
  animation: ascii-card-pop 0.52s var(--ease-bounce) both;
}

.ascii-modal__card--enter-swing {
  animation: ascii-card-swing 0.55s var(--ease-bounce) both;
}

.ascii-modal__card--enter-flip {
  animation: ascii-card-flip 0.58s var(--ease-out) both;
}

.ascii-modal__card--enter-bounce {
  animation: ascii-card-bounce 0.55s var(--ease-bounce) both;
}

@keyframes ascii-card-pop {
  0% {
    opacity: 0;
    transform: scale(0.35) rotate(-4deg);
  }
  70% {
    opacity: 1;
    transform: scale(1.04) rotate(1deg);
  }
  100% {
    transform: scale(1) rotate(0deg);
  }
}

@keyframes ascii-card-swing {
  0% {
    opacity: 0;
    transform: perspective(520px) rotateY(-28deg) translateY(16px) scale(0.9);
  }
  100% {
    opacity: 1;
    transform: perspective(520px) rotateY(0deg) translateY(0) scale(1);
  }
}

@keyframes ascii-card-flip {
  0% {
    opacity: 0;
    transform: rotateX(-90deg) scale(0.85);
  }
  55% {
    opacity: 1;
    transform: rotateX(8deg) scale(1.02);
  }
  100% {
    transform: rotateX(0) scale(1);
  }
}

@keyframes ascii-card-bounce {
  0% {
    opacity: 0;
    transform: translateY(110%) scale(0.7);
  }
  60% {
    opacity: 1;
    transform: translateY(-6%) scale(1.05);
  }
  100% {
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ascii-modal__backdrop {
    transition: none;
    opacity: 1;
  }

  .ascii-modal__card {
    transition: none;
    opacity: 1;
    transform: none;
    filter: none;
  }

  .ascii-modal__card--enter-pop,
  .ascii-modal__card--enter-swing,
  .ascii-modal__card--enter-flip,
  .ascii-modal__card--enter-bounce {
    animation: none;
  }
}

/* README bottom-sheet */

.readme-sheet {
  position: fixed;
  inset: 0;
  z-index: 900;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  pointer-events: none;
}

.readme-sheet:not([hidden]) {
  pointer-events: auto;
}

.readme-sheet__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(18, 14, 11, 0.45);
  opacity: 0;
  transition: opacity 0.3s var(--ease-out);
}

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

.readme-sheet__dialog {
  position: relative;
  width: min(720px, 100%);
  max-height: min(88dvh, 100%);
  margin: 0;
  background: var(--cream-50);
  border: 3px solid var(--ink-900);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  box-shadow: var(--bubble-shadow-hover);
  transform: translateY(100%);
  transition: transform 0.45s var(--ease-bounce);
  display: flex;
  flex-direction: column;
}

.readme-sheet.is-open .readme-sheet__dialog {
  transform: translateY(0);
}

.readme-sheet__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 3px solid var(--ink-900);
  flex-shrink: 0;
}

.readme-sheet__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.readme-sheet__close {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 3px solid var(--ink-900);
  background: var(--cream-200);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}

.readme-sheet__content {
  padding: 1rem 1.1rem 1.5rem;
  overflow: auto;
  font-size: 0.92rem;
  color: var(--brown-800);
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: contain;
  touch-action: pan-y;
}

.readme-sheet__content pre {
  overflow: auto;
  padding: 0.75rem;
  border-radius: var(--radius-lg);
  background: var(--cream-100);
  border: 2px solid var(--ink-900);
}