.mine-page {
  background:
    linear-gradient(90deg, rgba(34, 49, 43, 0.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(34, 49, 43, 0.045) 1px, transparent 1px),
    linear-gradient(135deg, #fbf7ed 0%, #edf4ee 54%, #f8efe2 100%);
  background-size: 34px 34px, 34px 34px, auto;
}

.mine-shell {
  width: min(1160px, calc(100% - 32px));
  min-height: calc(100svh - 62px);
}

.mine-titlebar {
  display: grid;
  grid-template-columns: max-content minmax(280px, 560px);
  justify-content: start;
  gap: 22px;
  align-items: end;
  padding: 2px 0 14px;
}

.mine-titlebar h1 {
  margin: 0;
  font-size: 2.6rem;
  line-height: 1;
}

.mine-titlebar p:not(.eyebrow) {
  margin: 0;
  color: #4d5c55;
  line-height: 1.55;
}

.mine-layout {
  display: grid;
  grid-template-columns: max-content minmax(320px, 360px);
  justify-content: center;
  gap: clamp(18px, 2.6vw, 28px);
  align-items: start;
  min-width: 0;
}

.mine-board-panel,
.mine-control-panel {
  min-width: 0;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 253, 247, 0.96), rgba(250, 245, 234, 0.94));
  box-shadow: 8px 8px 0 var(--ink);
  animation: mine-panel-in 420ms var(--ease-out-quint) both;
}

.mine-board-panel {
  position: relative;
  display: grid;
  gap: 10px;
  width: fit-content;
  padding: 12px;
  overflow: auto;
  max-width: 100%;
}

.mine-board {
  box-sizing: border-box;
  --cols: 9;
  --mine-cell-size: 34px;
  --mine-cell-gap: 4px;
  --mine-font-size: 1rem;
  display: grid;
  grid-template-columns: repeat(var(--cols), var(--mine-cell-size));
  gap: var(--mine-cell-gap);
  border: 3px solid var(--ink);
  border-radius: 8px;
  padding: 8px;
  background:
    linear-gradient(135deg, rgba(34, 49, 43, 0.08), transparent 28%),
    #d8cbb8;
  box-shadow: inset 0 0 0 1px rgba(255, 253, 247, 0.45);
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.mine-board[data-level="medium"] {
  --mine-cell-size: 32px;
  --mine-cell-gap: 3px;
  --mine-font-size: 0.92rem;
}

.mine-board[data-level="hard"] {
  --mine-cell-size: 28px;
  --mine-cell-gap: 2px;
  --mine-font-size: 0.84rem;
}

.mine-cell {
  display: grid;
  place-items: center;
  width: var(--mine-cell-size);
  height: var(--mine-cell-size);
  border: 2px solid var(--ink);
  border-radius: 5px;
  background:
    linear-gradient(145deg, rgba(255, 253, 247, 0.92), rgba(247, 240, 223, 0.8));
  color: var(--ink);
  font: inherit;
  font-size: var(--mine-font-size);
  font-weight: 950;
  cursor: pointer;
  box-shadow: 2px 2px 0 var(--ink);
  transform: translateZ(0);
  transition:
    transform 120ms var(--ease-out-quart),
    background 120ms var(--ease-out-quart),
    color 120ms var(--ease-out-quart),
    border-color 120ms var(--ease-out-quart),
    box-shadow 120ms var(--ease-out-quart);
}

.mine-cell:hover:not(.open) {
  background: #fff7e6;
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--ink);
}

.mine-cell:active:not(.open) {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 var(--ink);
}

.mine-board[data-level="medium"] .mine-cell,
.mine-board[data-level="hard"] .mine-cell {
  border-width: 1.5px;
  border-radius: 4px;
  box-shadow: 1.5px 1.5px 0 var(--ink);
}

.mine-board[data-level="hard"] .mine-cell {
  font-weight: 900;
}

.mine-cell.open {
  border-color: rgba(34, 49, 43, 0.18);
  background:
    linear-gradient(145deg, rgba(255, 253, 247, 0.28), rgba(34, 49, 43, 0.03)),
    #f1ead9;
  box-shadow: none;
  cursor: default;
}

.mine-cell.flagged {
  background:
    linear-gradient(145deg, rgba(255, 253, 247, 0.42), transparent 56%),
    #f3b64b;
}

.mine-cell.mine-hit {
  background: #e96f55;
  color: #fffdf7;
}

.mine-cell.just-opened {
  animation: mine-open 150ms cubic-bezier(0.22, 1, 0.36, 1);
}

.mine-cell.just-flagged {
  animation: mine-flag 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.mine-cell.mine-hit {
  animation: mine-hit 260ms cubic-bezier(0.25, 1, 0.5, 1);
}

.mine-cell[data-nearby="1"] { color: #2f7a5a; }
.mine-cell[data-nearby="2"] { color: #3d6f99; }
.mine-cell[data-nearby="3"] { color: #b34735; }
.mine-cell[data-nearby="4"],
.mine-cell[data-nearby="5"],
.mine-cell[data-nearby="6"],
.mine-cell[data-nearby="7"],
.mine-cell[data-nearby="8"] { color: #6b4f9c; }

.mine-control-panel {
  display: grid;
  gap: 12px;
  padding: 14px;
  animation-delay: 80ms;
}

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

.mine-stats span {
  display: grid;
  gap: 4px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  padding: 10px;
  background: #fffdf7;
  box-shadow: 3px 3px 0 var(--ink);
  transition: transform 160ms var(--ease-out-quart), box-shadow 160ms var(--ease-out-quart);
}

.mine-stats span:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink);
}

.mine-stats strong {
  font-size: 1.3rem;
}

.mine-stats small,
.hint-text {
  color: var(--muted);
  font-weight: 800;
}

.mine-toolbar {
  display: grid;
  gap: 8px;
}

.mine-message {
  min-height: 24px;
  margin: 0;
  color: #4d5c55;
  font-weight: 800;
}

.mine-rules {
  padding-top: 40px;
}

@media (max-width: 1100px) {
  .mine-titlebar,
  .mine-layout {
    grid-template-columns: 1fr;
    justify-content: stretch;
  }

  .mine-board-panel {
    justify-self: center;
    width: fit-content;
    max-width: 100%;
    justify-items: center;
  }

  .mine-control-panel {
    justify-self: center;
    width: min(100%, 520px);
  }
}

@media (max-width: 620px) {
  .mine-shell,
  .compact-header {
    width: min(100% - 28px, 1160px);
  }

  .compact-header {
    position: sticky;
    z-index: 30;
    top: 0;
    padding: 10px 0 6px;
    background:
      linear-gradient(90deg, rgba(34, 49, 43, 0.045) 1px, transparent 1px),
      linear-gradient(0deg, rgba(34, 49, 43, 0.045) 1px, transparent 1px),
      linear-gradient(135deg, rgba(251, 247, 237, 0.96), rgba(237, 244, 238, 0.96));
    background-size: 34px 34px, 34px 34px, auto;
  }

  .compact-header .brand strong {
    font-size: 0.9rem;
  }

  .compact-header .brand small {
    display: block;
    font-size: 0.62rem;
    line-height: 1.15;
  }

  .mine-shell {
    min-height: auto;
  }

  .mine-titlebar {
    padding: 4px 0 10px;
  }

  .mine-titlebar p:not(.eyebrow) {
    display: none;
  }

  .mine-titlebar .eyebrow {
    margin-bottom: 6px;
    font-size: 0.68rem;
  }

  .mine-titlebar h1 {
    font-size: clamp(1.9rem, 9vw, 2.25rem);
  }

  .mine-board-panel,
  .mine-control-panel {
    justify-self: stretch;
    width: 100%;
    box-shadow: 5px 5px 0 var(--ink);
  }

  .mine-board-panel {
    padding: 7px;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
  }

  .mine-board {
    --mine-cell-size: 30px;
    --mine-cell-gap: 3px;
    grid-template-columns: repeat(var(--cols), var(--mine-cell-size));
    padding: 7px;
    max-width: 100%;
  }

  .mine-board[data-level="medium"] {
    --mine-cell-size: 25px;
    --mine-cell-gap: 2px;
    --mine-font-size: 0.82rem;
  }

  .mine-board[data-level="hard"] {
    --mine-cell-size: 16px;
    --mine-cell-gap: 1px;
    --mine-font-size: 0.68rem;
  }

  .mine-cell {
    font-size: var(--mine-font-size);
  }

  .mine-control-panel {
    gap: 9px;
    padding: 10px;
    overflow: hidden;
  }

  .mine-stats {
    gap: 6px;
  }

  .mine-stats span {
    min-height: 52px;
    padding: 8px;
    box-shadow: 2px 2px 0 var(--ink);
  }

  .mine-stats strong {
    font-size: 1.08rem;
  }

  .mine-toolbar {
    gap: 7px;
  }

  .segmented button,
  .tool-button {
    min-height: 44px;
  }

  .leaderboard-list.compact {
    max-height: 128px;
  }
}

@media (max-width: 380px) {
  .mine-board {
    --mine-cell-size: 28px;
    --mine-cell-gap: 2px;
  }

  .mine-board[data-level="medium"] {
    --mine-cell-size: 22px;
  }

  .mine-board[data-level="hard"] {
    --mine-cell-size: 15px;
    --mine-font-size: 0.62rem;
  }
}

@keyframes mine-open {
  from { opacity: 0.55; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes mine-flag {
  0% { transform: translateY(0) scale(1); }
  45% { transform: translateY(-2px) scale(1.05); }
  100% { transform: translateY(0) scale(1); }
}

@keyframes mine-hit {
  0% { transform: scale(1); }
  40% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

@keyframes mine-panel-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .mine-cell {
    animation: none !important;
    transition: none !important;
  }
}