/* ==================== MEMORY GAME ==================== */

.memory {
  padding: 24px 0;
}

.memory__layout {
  display: grid;
  grid-template-columns: 268px minmax(0, 1fr);
  gap: 32px;
  align-items: stretch;
}

.memory__sidebar {
  display: flex;
  min-height: 602px;
  flex-direction: column;
  padding: 18px 0 4px;
}

.memory__heading h1 {
  margin: 9px 0 15px;
}

.memory__heading > p:last-child {
  max-width: 250px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.memory-campaign {
  margin-top: 27px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
}

.memory-campaign__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.76rem;
}

.memory-campaign__header span {
  color: var(--color-text-muted);
}

.memory-campaign__track {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin: 13px 0 11px;
  padding: 0;
  list-style: none;
}

.memory-campaign__track li {
  display: grid;
  height: 30px;
  place-items: center;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.69rem;
  font-weight: 750;
}

.memory-campaign__track li.is-complete {
  border-color: var(--color-brand);
  background: var(--color-brand-soft);
  color: var(--color-brand-dark);
}

.memory-campaign__track li.is-current {
  border-color: var(--color-brand-dark);
  background: var(--color-brand-dark);
  color: #fff;
}

.memory-campaign > p {
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

.memory__tip {
  display: flex;
  gap: 10px;
  margin-top: auto;
  padding: 15px 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.76rem;
}

.memory__tip span {
  align-self: flex-start;
  padding: 3px 6px;
  background: var(--color-brand-soft);
  color: var(--color-brand-dark);
  font-size: 0.62rem;
  font-weight: 850;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.memory__start {
  width: 100%;
}

.memory-hud {
  display: grid;
  min-height: 67px;
  grid-template-columns: repeat(4, minmax(74px, 1fr)) auto;
  align-items: center;
  border: 1px solid var(--color-border);
  border-bottom: 0;
  background: var(--color-surface);
}

.memory-hud__item {
  display: grid;
  gap: 2px;
  padding: 0 18px;
  border-right: 1px solid var(--color-border);
}

.memory-hud__item span {
  color: var(--color-text-muted);
  font-size: 0.65rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.memory-hud__item strong {
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
}

.memory-hud__item.is-danger strong {
  color: var(--color-danger);
}

.memory-hud__controls {
  display: flex;
  gap: 1px;
  padding: 0 10px;
}

.memory-control {
  border: 1px solid transparent;
}

.memory-board {
  position: relative;
  display: grid;
  min-height: 535px;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-board);
  background-image: linear-gradient(var(--color-grid) 1px, transparent 1px), linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 24px 24px;
}

.memory-board__status {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  display: flex;
  min-height: 32px;
  align-items: center;
  gap: 7px;
  padding: 0 10px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: 0.72rem;
}

.memory-board__status strong {
  color: var(--color-text);
}

.memory-board__status-dot {
  width: 7px;
  height: 7px;
  background: var(--color-brand);
  border-radius: 50%;
}

.memory-board__grid {
  display: grid;
  width: min(calc(100% - 44px), calc(var(--columns, 2) * 110px + (var(--columns, 2) - 1) * 10px));
  grid-template-columns: repeat(var(--columns, 2), minmax(0, 1fr));
  gap: 10px;
  margin-top: 36px;
}

.memory-card {
  position: relative;
  aspect-ratio: 1 / 1.08;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  perspective: 700px;
  transition: opacity 180ms ease, visibility 180ms ease;
}

.memory-card__inner {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transition: transform 280ms ease;
}

.memory-card.is-flipped .memory-card__inner,
.memory-card.is-matched .memory-card__inner {
  transform: rotateY(180deg);
}

.memory-card.is-matched {
  visibility: hidden;
  opacity: 0;
}

.memory-card__face {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-small);
  backface-visibility: hidden;
}

.memory-card__back {
  background: var(--color-brand-dark);
  color: #fff;
}

.memory-card__back::before {
  content: "n";
  display: grid;
  width: 38%;
  aspect-ratio: 1;
  place-items: center;
  border: 2px solid rgba(255, 255, 255, 0.7);
  color: #fff;
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 900;
}

.memory-card__front {
  transform: rotateY(180deg);
  border-color: var(--color-brand);
  background: #f8fafc;
}

.memory-card__icon {
  font-family: "Segoe UI Emoji", "Apple Color Emoji", "Noto Color Emoji", sans-serif;
  font-size: clamp(1.7rem, 4.5vw, 3.15rem);
  line-height: 1;
}

.memory-card:focus-visible {
  outline: 0;
}

.memory-card:focus-visible .memory-card__face {
  box-shadow: var(--shadow-focus);
}

.memory-message {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 28px;
  background: color-mix(in srgb, var(--color-board) 94%, transparent);
  text-align: center;
}

.memory-message[hidden] {
  display: none;
}

.memory-message__symbol {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  margin-bottom: 18px;
  background: var(--color-brand-soft);
  color: var(--color-brand-dark);
  font-size: 1.65rem;
  font-weight: 900;
}

.memory-message h2 {
  margin: 8px 0 10px;
  font-size: clamp(1.6rem, 3vw, 2.25rem);
}

.memory-message > p:not(.eyebrow) {
  max-width: 420px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.memory-message__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 9px;
  margin-top: 22px;
}

.memory-help__steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.memory-help__steps li {
  display: flex;
  align-items: center;
  gap: 12px;
}

.memory-help__steps li > span {
  display: grid;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  place-items: center;
  background: var(--color-brand-soft);
  color: var(--color-brand-dark);
  font-size: 0.75rem;
  font-weight: 850;
}

.memory-help__steps p {
  font-size: 0.84rem;
}

.memory-help__steps strong {
  color: var(--color-text);
}

.memory-help__note {
  margin-top: 20px;
  padding-top: 17px;
  border-top: 1px solid var(--color-border);
  font-size: 0.78rem;
}

@media (max-width: 900px) {
  .memory__layout {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .memory__sidebar {
    display: grid;
    min-height: 0;
    grid-template-columns: minmax(220px, 1fr) minmax(290px, 1.2fr);
    gap: 22px;
    padding: 0;
  }

  .memory__heading h1 {
    margin-bottom: 10px;
    font-size: 2.35rem;
  }

  .memory-campaign {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
  }

  .memory__tip {
    display: none;
  }

  .memory__start {
    grid-column: 2;
    width: auto;
    margin-top: -64px;
    justify-self: end;
  }

  .memory-board {
    min-height: 520px;
  }
}

@media (max-width: 640px) {
  .memory {
    padding: 16px 0 18px;
  }

  .memory__layout {
    gap: 15px;
  }

  .memory__sidebar {
    display: block;
  }

  .memory__heading h1 {
    margin: 6px 0 8px;
    font-size: 2rem;
  }

  .memory__heading h1 br {
    display: none;
  }

  .memory__heading > p:last-child,
  .memory__start {
    display: none;
  }

  .memory-campaign {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
  }

  .memory-campaign__track {
    margin: 10px 0 7px;
  }

  .memory-campaign__track li {
    height: 27px;
  }

  .memory-play {
    margin-inline: -12px;
  }

  .memory-hud {
    min-height: 59px;
    grid-template-columns: repeat(3, 1fr) auto;
    border-right: 0;
    border-left: 0;
  }

  .memory-hud__item {
    padding: 0 10px;
  }

  .memory-hud__best {
    display: none;
  }

  .memory-hud__controls {
    padding: 0 4px;
  }

  .memory-control {
    width: 42px;
    height: 44px;
  }

  .memory-board {
    min-height: clamp(330px, calc(100svh - 330px), 470px);
    border-right: 0;
    border-left: 0;
  }

  .memory-board__status {
    top: 10px;
    left: 10px;
  }

  .memory-board__status #statusDetail {
    display: none;
  }

  .memory-board__grid {
    width: min(calc(100% - 24px), calc(var(--columns, 2) * 110px + (var(--columns, 2) - 1) * 8px));
    gap: 8px;
    margin-top: 38px;
  }

  .memory-card {
    min-height: 52px;
  }

  .memory-card__face {
    border-width: 1px;
  }

  .memory-message {
    padding: 22px 18px;
  }

  .memory-message__symbol {
    width: 48px;
    height: 48px;
    margin-bottom: 14px;
  }

  .memory-message h2 {
    margin: 7px 0 8px;
  }

  .memory-message__actions {
    width: 100%;
  }

  .memory-message__actions .button {
    flex: 1 1 150px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .memory-card,
  .memory-card__inner {
    transition: none;
  }
}