/* Stage 4: sketch-style dual-mode leaderboard */
.leaderboard-screen {
  display: none;
  padding: 1.25rem 1rem 3rem;
}
.leaderboard-screen.active { display: block; }
.leaderboard-wrap { max-width: 720px; margin: 0 auto; }
.leaderboard-head {
  position: relative;
  text-align: center;
  margin-bottom: 1rem;
  min-height: 2.2rem;
}
.leaderboard-head h2 {
  margin: 0.35rem 0;
  font-size: 1.4rem;
  text-align: center;
}
.leaderboard-head .leaderboard-back {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}
.leaderboard-back, .leaderboard-link {
  border: 1px solid color-mix(in srgb, currentColor 25%, transparent);
  background: transparent;
  color: inherit;
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  cursor: pointer;
}
.leaderboard-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
  flex-wrap: wrap;
}
.leaderboard-tab {
  border: 1px dashed color-mix(in srgb, currentColor 35%, transparent);
  background: transparent;
  color: inherit;
  border-radius: 10px;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  font: inherit;
}
.leaderboard-tab.active {
  border-style: solid;
  background: color-mix(in srgb, currentColor 8%, transparent);
  font-weight: 600;
}
.leaderboard-meta {
  font-size: 0.82rem;
  opacity: 0.75;
  margin-bottom: 0.75rem;
}
.leaderboard-meta code {
  font-size: 0.78em;
  padding: 0.05rem 0.3rem;
  border-radius: 4px;
  background: color-mix(in srgb, currentColor 8%, transparent);
}
.leaderboard-mine { margin-bottom: 0.85rem; }
.mine-card {
  border: 1px solid color-mix(in srgb, currentColor 18%, transparent);
  border-radius: 12px;
  padding: 0.75rem 0.9rem;
  font-size: 0.92rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.mine-card.guest { opacity: 0.9; }
.leaderboard-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.leaderboard-row {
  display: grid;
  grid-template-columns: 2.5rem 2rem minmax(0, 1fr) auto auto;
  gap: 0.55rem;
  align-items: center;
  border: 1px solid color-mix(in srgb, currentColor 16%, transparent);
  border-radius: 12px;
  padding: 0.65rem 0.8rem;
}
.lb-rank { font-weight: 700; opacity: 0.85; }
.lb-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid color-mix(in srgb, currentColor 20%, transparent);
}
.lb-nick {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  overflow: hidden;
  font-weight: 600;
  min-width: 0;
}
.lb-nick > small.lb-stats {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lb-ret {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.1rem;
  line-height: 1.15;
}
.lb-ret-label {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  opacity: 0.65;
}
.lb-ret.pos { color: #e05252; }
.lb-ret.neg { color: #3db86a; }
.lb-time { font-size: 0.75rem; opacity: 0.65; white-space: nowrap; }
.leaderboard-empty { opacity: 0.7; padding: 1rem 0.25rem; }
.leaderboard-note {
  margin-top: 1rem;
  font-size: 0.8rem;
  opacity: 0.65;
  line-height: 1.45;
}
@media (max-width: 640px) {
  .leaderboard-row {
    grid-template-columns: 2.2rem 1.75rem minmax(0, 1fr) auto;
    grid-template-rows: auto auto;
  }
  .lb-time {
    grid-column: 3 / -1;
    grid-row: 2;
  }
}
.lb-nick {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.lb-stats, .mine-stats {
  font-size: 0.75rem;
  font-weight: 500;
  opacity: 0.7;
}
.mine-stats {
  margin-left: 0.35rem;
}

/* Perceived perf: keep last board visible while refreshing */
.leaderboard-screen.is-busy .leaderboard-list {
  opacity: 0.72;
  transition: opacity 0.15s ease;
}
.leaderboard-meta.is-refreshing::after {
  content: " · 刷新中…";
  opacity: 0.7;
}
.lb-refresh-err {
  color: #c44;
  font-size: 0.85em;
}

/* Metric segmented control (最佳单局 / 平均收益) */
.leaderboard-metric-tabs {
  display: inline-flex;
  gap: 0;
  margin-bottom: 0.65rem;
  border: 1px solid color-mix(in srgb, currentColor 22%, transparent);
  border-radius: 999px;
  overflow: hidden;
  max-width: 100%;
}
.leaderboard-metric-tab {
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0.4rem 0.95rem;
  cursor: pointer;
  font: inherit;
  opacity: 0.78;
}
.leaderboard-metric-tab.active {
  background: color-mix(in srgb, currentColor 10%, transparent);
  font-weight: 700;
  opacity: 1;
}
.leaderboard-metric-note {
  border-left: 3px solid color-mix(in srgb, currentColor 28%, transparent);
  padding-left: 0.65rem;
  margin-top: 0.55rem;
}

.leaderboard-assist-tabs {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin: 0.55rem 0 0.35rem;
}
.leaderboard-assist-tab {
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--ink, #2b2118) 22%, transparent);
  background: transparent;
  padding: 0.28rem 0.75rem;
  cursor: pointer;
  font-size: 0.85rem;
}
.leaderboard-assist-tab.active {
  background: var(--ink, #2b2118);
  color: var(--paper, #f7f1e6);
  border-color: transparent;
}
[data-theme="dark"] .leaderboard-assist-tab.active {
  background: #f3ebe0;
  color: #1c1915;
}


/* Play-kind tabs (classic / oneshot / survival) — paper aesthetic + mode accents */
.leaderboard-kind-tabs {
  display: flex;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}
.leaderboard-kind-tab {
  border: 1px dashed color-mix(in srgb, currentColor 35%, transparent);
  background: transparent;
  color: inherit;
  border-radius: 10px;
  padding: 0.4rem 0.85rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.92rem;
}
.leaderboard-kind-tab.active {
  border-style: solid;
  font-weight: 700;
  background: color-mix(in srgb, currentColor 8%, transparent);
}
.leaderboard-kind-tab.lb-kind-tab-oneshot.active,
.leaderboard-screen.lb-kind-oneshot .leaderboard-kind-tab.lb-kind-tab-oneshot {
  border-color: color-mix(in srgb, var(--mode-oneshot) 70%, var(--line));
  background: color-mix(in srgb, var(--mode-oneshot) 16%, var(--card));
  color: color-mix(in srgb, var(--mode-oneshot) 75%, var(--ink));
}
.leaderboard-kind-tab.lb-kind-tab-survival.active,
.leaderboard-screen.lb-kind-survival .leaderboard-kind-tab.lb-kind-tab-survival {
  border-color: color-mix(in srgb, var(--mode-survival) 70%, var(--line));
  background: color-mix(in srgb, var(--mode-survival) 14%, var(--card));
  color: color-mix(in srgb, var(--mode-survival) 75%, var(--ink));
}
.leaderboard-screen.lb-kind-oneshot .leaderboard-head h2 {
  color: color-mix(in srgb, var(--mode-oneshot) 55%, var(--ink));
}
.leaderboard-screen.lb-kind-survival .leaderboard-head h2 {
  color: color-mix(in srgb, var(--mode-survival) 55%, var(--ink));
}
.lb-survive-badge {
  display: inline-block;
  margin-top: 0.1rem;
  margin-right: 0.35rem;
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  width: fit-content;
}
.lb-survive-ok {
  color: color-mix(in srgb, var(--mode-survival) 70%, var(--ink));
  background: color-mix(in srgb, var(--mode-survival) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--mode-survival) 40%, transparent);
}
.lb-survive-bust {
  color: var(--mute);
  background: color-mix(in srgb, var(--mute) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--mute) 30%, transparent);
}
.leaderboard-row.lb-row-survive {
  border-color: color-mix(in srgb, var(--mode-survival) 28%, var(--line));
}

/* Own row (outside Top 10 / highlighted) + recent games */
.leaderboard-row.is-me {
  background: color-mix(in srgb, var(--accent, #c0392b) 8%, transparent);
  border-color: color-mix(in srgb, var(--accent, #c0392b) 40%, transparent);
}
.lb-me-tag {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0 0.35rem;
  border-radius: 6px;
  font-size: 0.65rem;
  border: 1px solid currentColor;
  opacity: 0.8;
}
.leaderboard-gap { text-align: center; opacity: 0.5; line-height: 1; letter-spacing: 0.3em; }
.lb-recent { margin-top: 0.6rem; font-size: 0.82rem; }
.lb-recent-title { opacity: 0.7; margin-bottom: 0.35rem; }
.lb-recent-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.3rem; }
.lb-recent-row {
  display: grid;
  grid-template-columns: 4.6rem minmax(0, 1fr) auto;
  gap: 0.5rem;
  align-items: baseline;
  padding: 0.3rem 0.1rem;
  border-bottom: 1px dashed color-mix(in srgb, currentColor 16%, transparent);
}
.lb-recent-row.is-off .lb-recent-txt { opacity: 0.75; }
.lb-recent-ret { font-weight: 700; font-variant-numeric: tabular-nums; }
.lb-recent-ret.pos { color: #e05252; }
.lb-recent-ret.neg { color: #3db86a; }
.lb-recent-time { opacity: 0.6; font-size: 0.72rem; white-space: nowrap; }
.cloud-save-retry {
  margin-left: 0.4rem;
  padding: 0.2rem 0.7rem;
  min-height: 32px;
  border: 2px solid currentColor;
  border-radius: 10px;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  transition: transform 90ms ease;
}
.cloud-save-retry:active { transform: scale(0.96); }