.memory-shell { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; padding-top: 52px; }
.memory-intro { padding-top: 25px; }
.memory-intro h1 { font-size: clamp(42px, 5.5vw, 76px); letter-spacing: -.065em; margin: 22px 0; line-height: 1; }
.memory-intro h1 span { color: var(--acid); }
.memory-intro h1 i { display: inline-block; width: 9px; height: 9px; margin: 0 0 9px 12px; background: var(--acid); border-radius: 50%; box-shadow: 0 0 18px #bdff4570; }
.memory-intro > p { color: var(--muted); line-height: 1.8; }
.memory-intro strong { color: var(--white); font-weight: 500; }
.mission-rules { display: grid; grid-template-columns: 25px 1fr; gap: 18px 14px; margin: 32px 0; }
.mission-rules span { font: 12px monospace; color: var(--purple); padding-top: 3px; }
.mission-rules p { margin: 0; color: #c7cbd8; font-size: 14px; line-height: 1.6; }
.small-note { color: var(--muted); font-size: 12px; line-height: 1.7; }
.memory-intro .quiet-link { margin-top: 18px; }
.memory-arena { padding: 25px; border: 1px solid var(--line); border-radius: 18px; background: linear-gradient(145deg, #1c2030, #131720 65%); min-width: 0; align-self: start; }
.arena-top { display: flex; justify-content: space-between; gap: 10px; }
.board-size { color: var(--muted); font: 10px monospace; white-space: nowrap; }
.memory-stats { display: grid; grid-template-columns: 1.4fr 1.1fr .8fr; gap: 10px; margin: 24px 0 20px; }
.memory-stats span { color: var(--muted); display: block; font: 9px monospace; letter-spacing: 1px; margin-bottom: 8px; }
.memory-stats strong { font: 600 clamp(16px, 2.2vw, 26px) 'Courier New', monospace; letter-spacing: -1px; font-variant-numeric: tabular-nums; }
.memory-stats #time { color: var(--acid); }
.memory-stats small { font-size: 12px; color: var(--muted); }
.memory-board { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 9px; }
.memory-card { position: relative; aspect-ratio: 1.35; display: grid; place-items: center; padding: 8px; border: 1px solid #394052; border-radius: 9px; background: repeating-linear-gradient(135deg, transparent 0 7px, #c3b0fb05 7px 8px), #222737; color: var(--purple); transition: background .15s, border-color .15s, transform .15s; touch-action: manipulation; }
.memory-card:enabled:hover { border-color: var(--purple); transform: translateY(-2px); }
.memory-card:disabled { cursor: default; opacity: 1; }
.memory-card .card-back { font: 700 clamp(17px, 2.6vw, 28px) 'Courier New', monospace; color: #8d83a9; }
.memory-card .card-back::after { content: ''; display: block; margin: 3px auto 0; width: 21px; height: 2px; background: #c3b0fb50; }
.memory-card.is-open { background: #2b253d; border-color: #a595d0; }
.memory-card.is-matched { color: var(--acid); background: #222d21; border-color: #bdff4570; }
.memory-card svg { width: 74%; height: 100%; max-height: 55px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.arena-bottom { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-top: 20px; }
.arena-bottom p { color: var(--muted); font-size: 12px; line-height: 1.5; margin: 0; max-width: 230px; }
.arena-bottom .cta { white-space: nowrap; min-height: 44px; padding: 11px 16px; }
.memory-finish { border-top: 1px solid var(--line); margin-top: 24px; padding-top: 24px; }
.memory-finish h2 { font-size: 27px; margin: 12px 0; }
.memory-finish > p { font-size: 14px; line-height: 1.7; }
#save-form label { font-size: 12px; display: block; margin: 22px 0 10px; }
.save-controls { display: flex; gap: 10px; }
.save-controls input { width: 100%; min-width: 0; background: #0d1018; color: var(--white); border: 1px solid #45495b; border-radius: 8px; padding: 12px; }
.save-controls button { flex-shrink: 0; padding: 12px 15px; }
.cta:disabled { opacity: .6; cursor: wait; transform: none; }
.memory-rankings { grid-column: 1 / -1; margin: 12px 0 64px; }
.memory-rankings h2 { font-size: clamp(26px, 3vw, 39px); }
.quiet-button { background: transparent; border: 1px solid var(--line); color: var(--purple); border-radius: 8px; padding: 12px; font-size: 12px; }
.ranking-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 24px; }
.ranking-panel { min-width: 0; padding: 22px; border: 1px solid var(--line); border-radius: 12px; background: #151924; }
.ranking-heading { display: flex; gap: 14px; min-height: 88px; }
.ranking-heading > span { color: var(--acid); font-size: 28px; }
.ranking-heading h3 { margin: 0 0 9px; font-size: 19px; letter-spacing: -.5px; }
.ranking-heading p { color: var(--muted); font-size: 12px; line-height: 1.7; margin: 0; }
.ranking-panel ol { list-style: none; padding: 0; margin: 10px 0 0; }
.ranking-panel li { display: grid; grid-template-columns: 22px 1fr auto; gap: 10px; align-items: center; padding: 14px 0; border-top: 1px solid var(--line); font-size: 13px; }
.ranking-panel li > span:first-child { font: 11px monospace; color: var(--purple); }
.ranking-panel li b { overflow-wrap: anywhere; font-weight: 500; }
.ranking-panel li small { display: block; color: var(--muted); margin-top: 4px; font-size: 10px; }
.ranking-panel li > span:last-child { text-align: right; font-variant-numeric: tabular-nums; font-size: 12px; }
.ranking-panel .empty-ranking { display: block; color: var(--muted); line-height: 1.7; }
#ranking-status { color: var(--muted); font-size: 12px; }
.memory-catalog { margin-top: 24px; }
.memory-catalog .game-scene > img { width: 100%; height: auto; max-width: 540px; }
@media (max-width: 1000px) {
  .memory-shell { gap: 28px; grid-template-columns: .75fr 1.25fr; }
  .memory-arena { padding: 18px; }
  .arena-bottom { flex-wrap: wrap; }
  .ranking-grid { gap: 12px; }
  .ranking-panel { padding: 16px; }
}
@media (max-width: 700px) {
  .memory-shell { grid-template-columns: 1fr; padding-top: 24px; gap: 24px; }
  .memory-intro { padding: 0; }
  .memory-intro h1 { font-size: 48px; margin: 14px 0; }
  .memory-intro > p { font-size: 13px; margin: 10px 0; }
  .mission-rules { margin: 18px 0; gap: 8px; }
  .mission-rules p { font-size: 12px; }
  .memory-intro .quiet-link { margin-top: 6px; }
  .memory-stats strong { font-size: 20px; }
  .memory-stats span { font-size: 8px; letter-spacing: .2px; }
  .memory-card { min-height: 48px; }
  .memory-rankings { grid-column: auto; margin-top: 20px; }
  .ranking-grid { grid-template-columns: 1fr; }
  .ranking-heading { min-height: 60px; }
  .memory-rankings .section-top { gap: 20px; align-items: start; }
  .memory-rankings .section-top h2 { margin-bottom: 0; }
  .save-controls { flex-wrap: wrap; }
  .save-controls button { width: 100%; }
}
@media (max-width: 380px) {
  .memory-shell.wrap { width: calc(100% - 28px); }
  .memory-arena { padding: 14px; }
  .arena-top .eyebrow { font-size: 8px; letter-spacing: .8px; }
  .board-size { font-size: 8px; }
  .memory-stats strong { font-size: 17px; }
  .memory-board { gap: 6px; }
  .memory-card { min-height: 45px; }
}
@media (max-height: 500px) and (min-width: 701px) {
  .memory-shell { padding-top: 20px; }
  .memory-board { gap: 6px; }
  .memory-card { aspect-ratio: 1.7; }
}
@media (prefers-reduced-motion: reduce) {
  .memory-card { transition: none; }
}