/* Memory Match (/memory/) — port of the Pocket Games memory title. */
.memory-play { display: grid; gap: var(--space-4); margin-block: var(--space-5); }
.memory-play h1 { font-family: var(--font-display); font-size: var(--step-4); line-height: 1; margin: 0; text-align: center; }
.memory-sub { margin: 0; text-align: center; color: var(--text-muted); }

/* ── Size tabs ─────────────────────────────────────────────────────── */
.memory-modes { display: flex; justify-content: center; flex-wrap: wrap; gap: var(--space-2); }
.memory-mode {
  min-inline-size: 72px; min-block-size: var(--tap);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--border); border-radius: var(--radius-pill);
  background: var(--surface-1); color: var(--text-muted);
  font: 600 1rem/1 var(--font-body); cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.memory-mode:hover { color: var(--text); border-color: var(--border-strong); }
.memory-mode[aria-selected="true"] { background: color-mix(in srgb, var(--accent) 22%, var(--surface-2)); border-color: var(--accent); color: var(--text); }
.memory-mode:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

/* ── HUD ───────────────────────────────────────────────────────────── */
.memory-hud { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-2); inline-size: min(100%, 640px); margin-inline: auto; }
.memory-hud__cell {
  display: grid; gap: 2px; justify-items: center; padding: var(--space-2) var(--space-1);
  border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface-1); box-shadow: var(--glass-hi);
  min-inline-size: 0;
}
.memory-hud__cell > span { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; color: var(--text-faint); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-inline-size: 100%; }
.memory-hud__cell b { font: 600 1.6rem/1 var(--font-display); color: var(--text); font-variant-numeric: tabular-nums; white-space: nowrap; }
.memory-hud__cell b i { font-style: normal; color: var(--text-faint); font-size: 0.75em; }
.memory-hud__cell--best b { color: var(--accent); font-size: 1.25rem; line-height: 1.28; }

/* ── Card + stage ──────────────────────────────────────────────────── */
.memory-card.section-box { padding: var(--space-3); inline-size: min(100%, 640px); margin-inline: auto; }
.memory-stage { position: relative; display: grid; gap: var(--space-3); }
.memory-ribbon { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); font-size: 0.85rem; color: var(--text-muted); min-block-size: 1.4em; }
.memory-ribbon__stars { display: inline-flex; align-items: center; gap: 6px; color: var(--amber); font-weight: 600; white-space: nowrap; }
.memory-ribbon__stars svg { inline-size: 14px; block-size: 14px; fill: currentColor; }
.memory-ribbon__note { text-align: end; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-inline-size: 0; }
.memory-board { display: grid; place-items: center; }
.memory-grid {
  --size: 4;
  inline-size: 100%;
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: repeat(var(--size), minmax(0, 1fr));
  grid-template-rows: repeat(var(--size), minmax(0, 1fr));
  gap: clamp(4px, 1.4vw, 10px);
  touch-action: manipulation;
  user-select: none; -webkit-user-select: none;
}
.memory-stage.is-paused .memory-grid { filter: saturate(0.6) brightness(0.8); }

/* ── Cards: 3D flip ────────────────────────────────────────────────── */
.memory-cardbtn {
  position: relative; min-inline-size: 0; min-block-size: 0; padding: 0; border: 0; background: none;
  border-radius: 14%; perspective: 700px; cursor: pointer; -webkit-tap-highlight-color: transparent;
}
.memory-cardbtn[aria-disabled="true"] { cursor: default; }
.memory-cardbtn:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
.memory-flip {
  position: absolute; inset: 0; transform-style: preserve-3d;
  transition: transform 0.36s cubic-bezier(0.2, 0.8, 0.2, 1.12);
}
.memory-cardbtn.is-open .memory-flip { transform: rotateY(180deg); }
.memory-back, .memory-face {
  position: absolute; inset: 0; display: grid; place-items: center; border-radius: 14%;
  backface-visibility: hidden; -webkit-backface-visibility: hidden; overflow: hidden;
}
.memory-back {
  background:
    radial-gradient(circle at 30% 20%, rgb(255 255 255 / 0.22), transparent 55%),
    radial-gradient(rgb(255 255 255 / 0.12) 1px, transparent 1.5px) 0 0 / 8px 8px,
    linear-gradient(145deg, #8a5cf6, color-mix(in srgb, var(--accent) 80%, #6d28d9));
  border: 1px solid rgb(255 255 255 / 0.18);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.25), inset 0 -3px 0 rgb(0 0 0 / 0.18), 0 3px 8px rgb(4 2 20 / 0.45);
  color: rgb(255 255 255 / 0.9);
  transition: transform var(--dur-fast) var(--ease), filter var(--dur-fast) var(--ease);
}
.memory-back::after { content: ''; position: absolute; inset: 9%; border: 1px solid rgb(255 255 255 / 0.28); border-radius: 12%; }
.memory-back svg { inline-size: 38%; block-size: 38%; fill: currentColor; filter: drop-shadow(0 1px 2px rgb(0 0 0 / 0.25)); }
@media (hover: hover) {
  .memory-cardbtn:not(.is-open):hover .memory-back { filter: brightness(1.12); transform: translateY(-2px); }
}
.memory-face {
  transform: rotateY(180deg);
  background: radial-gradient(circle at 50% 35%, #fff, var(--tint, #f3f0ff) 78%);
  border: 1px solid rgb(255 255 255 / 0.7);
  box-shadow: inset 0 -3px 0 rgb(0 0 0 / 0.08), 0 3px 8px rgb(4 2 20 / 0.4);
}
.memory-face svg { inline-size: 80%; block-size: 80%; }
/* The app's illustrated pictures (cream studio backdrop) fill the face edge to edge. */
.memory-face img { inline-size: 100%; block-size: 100%; object-fit: cover; display: block; -webkit-user-drag: none; user-select: none; pointer-events: none; }
.memory-face:has(img) { background: #f8f0e6; }
.memory-cardbtn.is-done .memory-face {
  border-color: var(--lime);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--lime) 55%, transparent), 0 0 14px color-mix(in srgb, var(--lime) 35%, transparent);
}
.memory-cardbtn.is-done:not(.is-bonus) .memory-face :is(svg, img) { opacity: 0.92; }
.memory-cardbtn.is-bonus .memory-face { background: radial-gradient(circle, #fff7da, #ffe7a3); border: 1px dashed #d9b44a; box-shadow: none; }
.memory-bonus { display: grid; place-items: center; inline-size: 100%; block-size: 100%; }
.memory-bonus svg { inline-size: 55%; block-size: 55%; fill: #e8a800; filter: drop-shadow(0 2px 3px rgb(160 110 0 / 0.35)); }
.memory-cardbtn.is-matched { animation: memory-pop 0.5s var(--ease); }
.memory-cardbtn.is-miss .memory-flip { animation: memory-shake 0.36s ease; }
.memory-stage.is-won .memory-cardbtn { animation: memory-wave 0.7s var(--ease) both; animation-delay: calc(var(--i) * 18ms); }
.memory-grid.is-dealing .memory-cardbtn { animation: memory-deal 0.42s var(--ease) both; animation-delay: calc(var(--i) * 12ms); }
@keyframes memory-pop { 0% { transform: scale(1); } 35% { transform: scale(1.12); } 70% { transform: scale(0.97); } 100% { transform: scale(1); } }
@keyframes memory-shake { 0%, 100% { translate: 0; } 25% { translate: -5px 0; } 50% { translate: 5px 0; } 75% { translate: -3px 0; } }
@keyframes memory-wave { 0% { transform: none; } 40% { transform: translateY(-8%) scale(1.06); } 100% { transform: none; } }
@keyframes memory-deal { from { opacity: 0; transform: translateY(14px) scale(0.85); } to { opacity: 1; transform: none; } }

/* ── FX layer ──────────────────────────────────────────────────────── */
.memory-fx { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 3; }
.memory-live { position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden; clip-path: inset(50%); }
.memory-praise {
  position: absolute; inset-inline: 0; top: 34%; display: grid; justify-items: center; gap: 2px; text-align: center;
  animation: memory-praise 1.25s var(--ease) forwards;
}
.memory-praise strong { font: 700 clamp(2rem, 7vw, 3.2rem)/1 var(--font-display); color: #fff; text-shadow: 0 0 18px var(--accent), 0 3px 0 rgb(0 0 0 / 0.35); letter-spacing: 0.02em; }
.memory-praise small { font-weight: 700; color: var(--amber); text-shadow: 0 2px 6px rgb(0 0 0 / 0.6); }
@keyframes memory-praise { 0% { opacity: 0; transform: scale(0.6); } 18% { opacity: 1; transform: scale(1.08); } 30% { transform: scale(1); } 75% { opacity: 1; } 100% { opacity: 0; transform: translateY(-30px); } }
.memory-spark {
  position: absolute; inline-size: 8px; block-size: 8px; margin: -4px 0 0 -4px; border-radius: 50%;
  background: hsl(var(--h) 95% 65%); box-shadow: 0 0 8px hsl(var(--h) 95% 65%);
  animation: memory-spark 0.65s ease-out forwards;
}
@keyframes memory-spark { to { transform: translate(var(--dx), var(--dy)) scale(0.2); opacity: 0; } }
.memory-confetti {
  position: absolute; top: -12px; inline-size: 8px; block-size: 12px; border-radius: 2px;
  background: hsl(var(--h) 90% 62%);
  animation: memory-confetti 1.6s cubic-bezier(0.3, 0.6, 0.5, 1) forwards;
}
@keyframes memory-confetti { to { transform: translate(var(--dx), 720px) rotate(var(--r)); opacity: 0.2; } }

/* ── Overlay (standalone start / result) ───────────────────────────── */
.memory-overlay {
  position: absolute; inset: 0; z-index: 4; display: grid; place-items: center; padding: var(--space-4);
  border-radius: var(--radius-lg); background: rgb(7 5 26 / 0.72); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.memory-overlay[hidden] { display: none; }
.memory-overlay__box { display: grid; justify-items: center; gap: var(--space-3); text-align: center; max-inline-size: 360px; }
.memory-overlay__art { position: relative; inline-size: 170px; block-size: 110px; }
.memory-overlay__art:empty { display: none; }
.memory-overlay__art > span {
  position: absolute; top: 8px; inline-size: 72px; block-size: 90px; display: grid; place-items: center; border-radius: 12px;
  background: radial-gradient(circle at 50% 35%, #fff, #f1ecff 80%); box-shadow: var(--shadow-2);
}
.memory-overlay__art > span svg { inline-size: 56px; block-size: 56px; }
.memory-overlay__art > span:has(img) { overflow: hidden; background: #f8f0e6; }
.memory-overlay__art > span img { inline-size: 100%; block-size: 100%; object-fit: cover; display: block; }
.memory-overlay__art > span:nth-child(1) { inset-inline-start: 0; transform: rotate(-14deg); background: linear-gradient(145deg, #8a5cf6, var(--accent)); color: #fff; }
.memory-overlay__art > span:nth-child(1) svg { fill: currentColor; inline-size: 30px; }
.memory-overlay__art > span:nth-child(2) { inset-inline-start: 49px; top: 0; transform: rotate(-2deg); background: radial-gradient(circle at 50% 35%, #fff, #ffeedd 80%); }
.memory-overlay__art > span:nth-child(3) { inset-inline-start: 98px; transform: rotate(13deg); background: radial-gradient(circle at 50% 35%, #fff, #fff6cc 80%); }
.memory-overlay__title { margin: 0; font: 600 var(--step-3)/1 var(--font-display); color: var(--text); }
.memory-overlay__sub { margin: 0; color: var(--text-muted); font-size: 0.95rem; line-height: 1.5; }
.memory-overlay__stars { display: flex; gap: 6px; }
.memory-overlay__stars span svg { inline-size: 28px; block-size: 28px; fill: rgb(255 255 255 / 0.18); }
.memory-overlay__stars span.on svg { fill: var(--amber); filter: drop-shadow(0 0 6px color-mix(in srgb, var(--amber) 60%, transparent)); }
.memory-overlay__btn { min-inline-size: 200px; }

/* ── Immersive play layer: fit the board to the screen height ──────── */
.play-slot .memory-play { gap: var(--space-3); margin: 0; }
.play-slot .memory-hud { inline-size: min(100%, 640px, calc(100dvh - 200px)); min-inline-size: min(100%, 320px); }
.play-slot .memory-card.section-box { inline-size: min(100%, 640px, calc(100dvh - 120px)); min-inline-size: min(100%, 300px); padding: var(--space-2); }

@media (max-width: 480px) {
  .memory-hud__cell b { font-size: 1.35rem; }
  .memory-hud__cell--best b { font-size: 1rem; line-height: 1.35; }
  .memory-card.section-box { padding: var(--space-2); }
  .memory-ribbon { font-size: 0.75rem; flex-wrap: wrap; row-gap: 2px; }
  .memory-ribbon__note { white-space: normal; text-align: start; flex-basis: 100%; }
  .memory-grid { gap: clamp(3px, 1.2vw, 6px); }
}

@media (prefers-reduced-motion: reduce) {
  .memory-flip, .memory-back { transition: none; }
  .memory-cardbtn.is-matched, .memory-cardbtn.is-miss .memory-flip, .memory-stage.is-won .memory-cardbtn,
  .memory-grid.is-dealing .memory-cardbtn, .memory-praise { animation: none; }
  .memory-praise { opacity: 1; }
}