:root {
  --mmg-bg: #f3f6ef;
  --mmg-surface: #ffffff;
  --mmg-ink: #17324d;
  --mmg-muted: #5f7388;
  --mmg-primary: #1f7a8c;
  --mmg-primary-strong: #14525f;
  --mmg-accent: #f4a261;
  --mmg-border: #d7e2db;
  --mmg-shadow: 0 14px 34px rgba(18, 30, 44, 0.12);
}

.memory-match {
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  background: radial-gradient(circle at 90% 12%, #f9f3d6 0%, var(--mmg-bg) 42%, #e9f0ea 100%);
  color: var(--mmg-ink);
  border: 1px solid var(--mmg-border);
  border-radius: 20px;
  box-shadow: var(--mmg-shadow);
  max-width: 860px;
  margin: 0 auto;
  padding: 16px;
}

.memory-match-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.memory-match-title {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 0;
}

.memory-match-subtitle {
  margin: 2px 0 0;
  color: var(--mmg-muted);
  font-size: 0.9rem;
}

.memory-match-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.memory-match-chip {
  background: #fff;
  border: 1px solid var(--mmg-border);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.84rem;
  color: var(--mmg-muted);
}

.memory-match-chip strong {
  color: var(--mmg-ink);
}

.memory-match-button {
  border: 0;
  border-radius: 10px;
  padding: 9px 14px;
  font-size: 0.88rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--mmg-primary) 0%, var(--mmg-primary-strong) 100%);
  color: #fff;
  cursor: pointer;
  transition: transform 140ms ease, filter 140ms ease;
}

.memory-match-button:hover,
.memory-match-button:focus-visible {
  transform: translateY(-1px);
  filter: brightness(1.06);
}

.memory-match-grid {
  --columns: 6;
  display: grid;
  grid-template-columns: repeat(var(--columns), minmax(0, 1fr));
  gap: 10px;
}

.memory-card {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
  perspective: 900px;
}

.memory-card-inner {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transition: transform 260ms ease;
  border-radius: 14px;
}

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

.memory-card-face {
  position: absolute;
  inset: 0;
  border-radius: 14px;
  backface-visibility: hidden;
  overflow: hidden;
}

.memory-card-back {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, transparent 36%),
    repeating-linear-gradient(45deg, #2b9eb3 0 13px, #1f7a8c 13px 26px);
  border: 2px solid rgba(255, 255, 255, 0.25);
  display: grid;
  place-items: center;
}

.memory-card-back::after {
  content: "?";
  display: grid;
  place-items: center;
  width: 42%;
  height: 42%;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-weight: 800;
  font-size: clamp(1rem, 3vw, 1.8rem);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.memory-card-front {
  transform: rotateY(180deg);
  background: #fff;
  border: 2px solid #fff;
}

.memory-card-front img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.memory-card.matched {
  cursor: default;
}

.memory-card.matched .memory-card-front {
  box-shadow: inset 0 0 0 2px rgba(244, 162, 97, 0.72);
}

.memory-match-status {
  margin-top: 14px;
  min-height: 24px;
  color: var(--mmg-muted);
  font-size: 1.2rem;
  text-align: center;
  font-weight: 800;
}

.memory-match-status strong {
  color: var(--mmg-primary-strong);
}

.memory-match-leaderboard {
  margin-top: 14px;
  padding: 12px;
  border-radius: 14px;
  background: #ffffffd6;
  border: 1px solid var(--mmg-border);
}

.memory-match-leaderboard-title {
  margin: 0 0 8px;
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--mmg-primary-strong);
  letter-spacing: 0.01em;
}

.memory-match-leaderboard-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.memory-match-leaderboard-item {
  display: grid;
  grid-template-columns: 44px 1fr auto auto;
  gap: 10px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--mmg-border);
  border-radius: 10px;
  padding: 7px 9px;
  font-size: 0.88rem;
}

.memory-match-leaderboard-rank {
  color: var(--mmg-muted);
  font-weight: 700;
}

.memory-match-leaderboard-initials {
  font-weight: 900;
  letter-spacing: 0.08em;
}

.memory-match-leaderboard-time {
  font-weight: 800;
  color: var(--mmg-primary-strong);
}

.memory-match-leaderboard-moves {
  color: var(--mmg-muted);
}

.memory-match-leaderboard-empty {
  color: var(--mmg-muted);
  font-size: 0.9rem;
}

.memory-match-entry-form {
  margin-top: 10px;
  display: flex;
  align-items: end;
  gap: 8px;
  flex-wrap: nowrap;
  min-height: 56px;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.memory-match-entry-form.is-visible {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.memory-match-entry-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--mmg-muted);
  font-weight: 700;
  white-space: nowrap;
}

.memory-match-entry-input {
  width: 74px;
  border: 1px solid var(--mmg-border);
  background: #fff;
  color: var(--mmg-ink);
  border-radius: 10px;
  padding: 7px 8px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 1rem;
  font-weight: 900;
}

.memory-match-entry-skip {
  border: 1px solid var(--mmg-border);
  border-radius: 10px;
  padding: 8px 10px;
  background: #fff;
  color: var(--mmg-muted);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
}

.memory-match-entry-save {
  padding-inline: 16px;
}

@media (max-width: 760px) {
  .memory-match {
    border-radius: 16px;
    padding: 12px;
  }

  .memory-match-grid {
    gap: 8px;
  }

  .memory-match-entry-form {
    min-height: 48px;
    gap: 6px;
  }

  .memory-match-entry-label {
    font-size: 0.75rem;
    gap: 6px;
  }

  .memory-match-entry-input {
    width: 64px;
    font-size: 0.92rem;
    padding: 6px 7px;
  }

  .memory-match-leaderboard-item {
    grid-template-columns: 38px 1fr auto;
  }

  .memory-match-leaderboard-moves {
    grid-column: 2 / -1;
    font-size: 0.8rem;
  }
}