.lru-game {
  display: grid;
  gap: 14px;
}

.lru-brief,
.lru-status {
  border: 1px solid #d7dde6;
  border-radius: 8px;
  background: #f8fafc;
  color: #344054;
  padding: 10px 12px;
  font-size: 15px;
  line-height: 1.45;
}

.lru-status {
  min-height: 52px;
  background: #fff;
}

.lru-status-good {
  border-color: #0f766e;
  background: #d7f4ef;
  color: #0f514b;
}

.lru-status-warn {
  border-color: #b45309;
  background: #fff7ed;
  color: #8a3b07;
}

.lru-status-evict {
  border-color: #b42318;
  background: #fff1f0;
  color: #7a271a;
}

.lru-score {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.lru-stat {
  min-width: 0;
  border: 1px solid #d7dde6;
  border-radius: 8px;
  background: #fff;
  padding: 9px 10px;
}

.lru-stat span,
.lru-section-head span,
.lru-seat-role,
.lru-op-kind {
  display: block;
  color: #667085;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
}

.lru-stat strong {
  display: block;
  margin-top: 3px;
  color: #17202a;
  font-size: 19px;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.lru-stage {
  display: grid;
  grid-template-columns: minmax(168px, 0.74fr) minmax(0, 1.26fr);
  gap: 10px;
  align-items: stretch;
}

.lru-index-panel,
.lru-seat-panel,
.lru-request-panel {
  min-width: 0;
  border: 1px solid #d7dde6;
  border-radius: 8px;
  background: #fbfcfe;
  padding: 12px;
  display: grid;
  gap: 10px;
}

.lru-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.lru-section-head strong {
  color: #17202a;
  font-size: 13px;
  line-height: 1.2;
  text-align: right;
}

.lru-index-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 7px;
}

.lru-index-slot {
  min-height: 48px;
  border: 1px solid #d0d5dd;
  border-radius: 8px;
  background: #fff;
  padding: 7px 8px;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 2px 8px;
  align-items: center;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.lru-index-key {
  grid-row: span 2;
  width: 34px;
  min-height: 34px;
  border-radius: 8px;
  background: #e0f2fe;
  color: #075985;
  display: grid;
  place-items: center;
  font-weight: 900;
}

.lru-index-slot strong {
  color: #17202a;
  font-size: 15px;
  line-height: 1.1;
}

.lru-index-slot small {
  color: #667085;
  font-size: 12px;
  line-height: 1.1;
}

.lru-index-empty {
  background: #f8fafc;
}

.lru-index-empty .lru-index-key {
  background: #eef2f6;
  color: #667085;
}

.lru-index-active {
  border-color: #0f766e;
  background: #d7f4ef;
  transform: translateX(3px);
}

.lru-index-miss {
  border-color: #b45309;
  background: #fff7ed;
}

.lru-rail-labels {
  display: flex;
  justify-content: space-between;
  color: #667085;
  font-size: 12px;
  font-weight: 850;
}

.lru-seat-row {
  position: relative;
  min-height: 122px;
  border: 1px dashed #98a2b3;
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(180, 35, 24, 0.08), transparent 26%, transparent 74%, rgba(15, 118, 110, 0.1)),
    #fff;
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  align-items: center;
}

.lru-seat {
  position: relative;
  min-width: 0;
  min-height: 92px;
  border: 2px solid #cbd5e1;
  border-radius: 8px;
  background: #fff;
  color: #17202a;
  padding: 8px 6px;
  display: grid;
  place-items: center;
  gap: 1px;
  text-align: center;
  box-shadow: 0 8px 18px rgba(20, 31, 50, 0.08);
  transition: transform 220ms ease, border-color 220ms ease, background 220ms ease;
}

.lru-seat strong {
  font-size: 24px;
  line-height: 1;
}

.lru-seat small {
  color: #475467;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.lru-seat-oldest {
  border-color: #b42318;
  background: #fff7f5;
}

.lru-seat-newest {
  border-color: #0f766e;
  background: #effdf9;
}

.lru-seat-active {
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.17), 0 8px 18px rgba(20, 31, 50, 0.08);
}

.lru-seat-moved {
  animation: lru-seat-pop 560ms ease;
}

.lru-seat-inserted {
  animation: lru-seat-in 520ms ease;
  border-color: #2563eb;
  background: #eff6ff;
}

.lru-seat-updated {
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.17), 0 8px 18px rgba(20, 31, 50, 0.08);
}

.lru-link {
  position: absolute;
  top: 50%;
  min-width: 31px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: #eef2f6;
  color: #667085;
  font-size: 10px;
  font-weight: 900;
  line-height: 1;
}

.lru-link-prev {
  left: 4px;
  transform: translateY(-50%);
}

.lru-link-next {
  right: 4px;
  transform: translateY(-50%);
}

.lru-empty {
  grid-column: 1 / -1;
  min-height: 64px;
  display: grid;
  place-items: center;
  color: #667085;
  font-weight: 800;
}

.lru-discard {
  min-height: 44px;
  border: 1px solid #d7dde6;
  border-radius: 8px;
  background: #fff;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #667085;
  font-size: 13px;
  font-weight: 800;
}

.lru-discard strong {
  min-width: 34px;
  min-height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #b42318;
  color: #fff;
  animation: lru-seat-pop 360ms ease;
}

.lru-op-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.lru-op {
  min-width: 0;
  min-height: 72px;
  border: 2px solid #cbd5e1;
  border-radius: 8px;
  background: #fff;
  color: #17202a;
  padding: 8px 6px;
  cursor: pointer;
  touch-action: manipulation;
  display: grid;
  place-items: center;
  gap: 1px;
  text-align: center;
  box-shadow: 0 6px 14px rgba(20, 31, 50, 0.07);
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.lru-op:active {
  transform: scale(0.97);
}

.lru-op:focus-visible,
.lru-btn:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.32);
  outline-offset: 2px;
}

.lru-op strong {
  font-size: 24px;
  line-height: 1;
}

.lru-op small {
  color: #475467;
  font-size: 12px;
  font-weight: 850;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.lru-op-get {
  background: #eef6ff;
  border-color: #bfd7f4;
}

.lru-op-put {
  background: #f0fdf4;
  border-color: #bbefd0;
}

.lru-op-current {
  border-color: #0f766e;
  background: #d7f4ef;
  transform: translateY(-4px);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.14), 0 10px 18px rgba(20, 31, 50, 0.08);
}

.lru-op-done {
  background: #eef2f6;
  border-color: #cbd5e1;
  color: #667085;
  box-shadow: none;
}

.lru-op:disabled {
  cursor: default;
}

.lru-op-wrong {
  border-color: #b42318;
  background: #fff1f0;
  animation: lru-shake 360ms ease;
}

.lru-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.lru-btn {
  min-height: 46px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #fff;
  color: #17202a;
  padding: 0 14px;
  font-size: 15px;
  font-weight: 850;
  cursor: pointer;
  touch-action: manipulation;
}

.lru-btn-primary {
  background: #0f766e;
  border-color: #0f766e;
  color: #fff;
}

.lru-btn:disabled {
  opacity: 0.55;
  cursor: default;
}

@keyframes lru-seat-pop {
  0% { transform: scale(0.86); }
  45% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

@keyframes lru-seat-in {
  0% { transform: translateY(14px) scale(0.9); opacity: 0.2; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}

@keyframes lru-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

@media (max-width: 760px) {
  .lru-score {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
  }

  .lru-stat {
    padding: 8px 7px;
  }

  .lru-stat strong {
    font-size: 16px;
  }

  .lru-stage {
    grid-template-columns: 1fr;
  }

  .lru-index-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 6px;
  }

  .lru-index-slot {
    min-height: 66px;
    grid-template-columns: 1fr;
    place-items: center;
    padding: 6px 4px;
    text-align: center;
  }

  .lru-index-key {
    grid-row: auto;
    width: 32px;
    min-height: 30px;
  }

  .lru-index-slot strong {
    font-size: 13px;
  }

  .lru-index-slot small {
    font-size: 11px;
  }

  .lru-seat-row {
    min-height: 116px;
    padding: 10px 8px;
    gap: 6px;
  }

  .lru-seat {
    min-height: 88px;
    padding: 7px 3px;
  }

  .lru-seat strong,
  .lru-op strong {
    font-size: 22px;
  }

  .lru-link {
    display: none;
  }

  .lru-op-list {
    grid-template-columns: repeat(5, minmax(54px, 1fr));
    gap: 6px;
  }

  .lru-op {
    min-height: 68px;
    padding: 7px 3px;
  }
}

@media (max-width: 420px) {
  .lru-brief,
  .lru-status {
    font-size: 14px;
  }

  .lru-score {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .lru-section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }

  .lru-section-head strong {
    text-align: left;
  }

  .lru-index-panel,
  .lru-seat-panel,
  .lru-request-panel {
    padding: 10px;
  }

  .lru-index-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .lru-index-slot {
    min-height: 62px;
  }

  .lru-seat-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .lru-seat {
    min-height: 84px;
  }

  .lru-seat small,
  .lru-op small,
  .lru-index-slot small {
    font-size: 10px;
  }

  .lru-op-list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .lru-op {
    min-height: 64px;
  }

  .lru-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}