.page-leaderboard {
  overflow-x: hidden;
}

body.page-leaderboard {
  overflow-x: hidden;
}

.page-leaderboard .container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  box-sizing: border-box;
}

.page-leaderboard .leaderboard-main {
  display: grid;
  gap: var(--space-3);
  min-width: 0;
}

.page-leaderboard .leaderboard-hero,
.page-leaderboard .leaderboard-card {
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-lg);
  background: var(--surface-bg);
  box-shadow: var(--shadow-xs);
  min-width: 0;
}

.page-leaderboard .leaderboard-hero {
  padding: var(--space-4);
  background: linear-gradient(140deg, var(--surface-bg) 0%, var(--surface-subtle) 100%);
}

.page-leaderboard .leaderboard-hero h1 {
  margin: 0 0 8px;
}

.page-leaderboard .leaderboard-hero p {
  margin: 0;
}

.page-leaderboard .leaderboard-week-label {
  margin-top: 10px;
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-leaderboard .leaderboard-card {
  padding: var(--space-3);
}

.page-leaderboard .leaderboard-card-header {
  margin-bottom: 12px;
}

.page-leaderboard .leaderboard-card-header h2 {
  margin: 0;
}

.page-leaderboard .leaderboard-status {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.page-leaderboard .leaderboard-empty {
  margin: 10px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.page-leaderboard .leaderboard-self-rank {
  margin: 12px 0 0;
  padding: 12px 14px;
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-sm);
  background: var(--surface-subtle);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.4;
}

.page-leaderboard .leaderboard-my-rank-card {
  margin-top: 14px;
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--surface-bg) 0%, var(--surface-subtle) 100%);
  padding: 14px;
  position: relative;
  overflow: hidden;
}

.page-leaderboard .leaderboard-my-rank-header h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--text-primary);
}

.page-leaderboard .leaderboard-my-rank-status {
  margin: 8px 0 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
}

.page-leaderboard .leaderboard-my-rank-sensitive {
  margin-top: 12px;
  transition: filter 0.2s ease, opacity 0.2s ease;
  position: relative;
  z-index: 1;
}

.page-leaderboard .leaderboard-my-rank-sensitive.is-blurred {
  filter: blur(10px);
  opacity: 0.35;
  user-select: none;
  pointer-events: none;
}

.page-leaderboard .leaderboard-my-rank-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.page-leaderboard .leaderboard-my-rank-item {
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-sm);
  background: var(--surface-bg);
  padding: 10px;
  min-width: 0;
}

.page-leaderboard .leaderboard-my-rank-label {
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.page-leaderboard .leaderboard-my-rank-value {
  display: block;
  margin-top: 6px;
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.35;
}

.page-leaderboard .leaderboard-my-rank-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px;
  text-align: center;
  z-index: 12;
  pointer-events: auto;
}

.page-leaderboard .leaderboard-my-rank-overlay p {
  margin: 0;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1.4;
}

.page-leaderboard .leaderboard-upgrade-btn {
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--accent-primary);
  color: #ffffff;
  min-height: 40px;
  padding: 10px 14px;
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
}

.page-leaderboard .leaderboard-my-rank-card.is-loading .leaderboard-my-rank-sensitive {
  opacity: 0.6;
}

html[data-theme='dark'] .page-leaderboard .leaderboard-my-rank-overlay {
  background: rgba(0, 0, 0, 0.45);
}

.page-leaderboard .leaderboard-upgrade-btn:hover {
  background: var(--accent-primary-hover);
}

.page-leaderboard .leaderboard-table-wrap {
  margin-top: 12px;
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-width: 100%;
  min-width: 0;
}

/* Mobile-safe fixed table layout.
   Chosen mobile column percentages:
   Rank 14%, Username 58%, Score 28% (fits 360px-430px without horizontal scroll). */
.page-leaderboard .leaderboard-table {
  width: 100%;
  max-width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
}

.page-leaderboard .leaderboard-table col.leaderboard-col-rank {
  width: 14%;
}

.page-leaderboard .leaderboard-table col.leaderboard-col-username {
  width: 58%;
}

.page-leaderboard .leaderboard-table col.leaderboard-col-score {
  width: 28%;
}

.page-leaderboard .leaderboard-table thead {
  background: var(--surface-subtle);
}

.page-leaderboard .leaderboard-table th,
.page-leaderboard .leaderboard-table td {
  border-bottom: 1px solid var(--line-subtle);
  padding: 12px 14px;
  font-size: 0.92rem;
  line-height: 1.35;
  vertical-align: middle;
}

.page-leaderboard .leaderboard-table tr:last-child td {
  border-bottom: none;
}

.page-leaderboard .leaderboard-table th {
  color: var(--text-primary);
  font-weight: 700;
}

.page-leaderboard .leaderboard-table td {
  color: var(--text-secondary);
}

.page-leaderboard .leaderboard-table th:nth-child(1),
.page-leaderboard .leaderboard-cell-rank {
  text-align: center;
}

.page-leaderboard .leaderboard-table th:nth-child(2),
.page-leaderboard .leaderboard-cell-username {
  text-align: left;
}

.page-leaderboard .leaderboard-table th:nth-child(3),
.page-leaderboard .leaderboard-cell-score {
  text-align: right;
}

.page-leaderboard .leaderboard-cell-username {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.page-leaderboard .leaderboard-cell-score {
  white-space: nowrap;
  color: var(--text-primary);
  font-weight: 700;
}

.page-leaderboard .leaderboard-username-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  max-width: 100%;
}

.page-leaderboard .leaderboard-username-medal {
  flex: 0 0 auto;
  font-size: 0.96em;
  line-height: 1;
}

.page-leaderboard .leaderboard-username-text {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-leaderboard .leaderboard-rank-cell {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-leaderboard .leaderboard-rank-medal {
  min-width: 30px;
  display: inline-flex;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
  opacity: 0.9;
}

.page-leaderboard .leaderboard-rank-top1 {
  color: #9a6700;
}

.page-leaderboard .leaderboard-rank-top2 {
  color: #475467;
}

.page-leaderboard .leaderboard-rank-top3 {
  color: #7a3e00;
}

.page-leaderboard .leaderboard-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  overflow-x: auto;
  overflow-y: hidden;
  flex-wrap: nowrap;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
}

.page-leaderboard .leaderboard-subject-select-wrap {
  display: none;
  margin-bottom: 12px;
}

.page-leaderboard .leaderboard-subject-select-label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.page-leaderboard .leaderboard-subject-select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line-subtle);
  border-radius: 10px;
  background: var(--surface-bg);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 10px 12px;
}

.page-leaderboard .leaderboard-tab {
  flex: 0 0 auto;
  min-height: 44px;
  border: 1px solid var(--line-subtle);
  border-radius: 10px;
  background: var(--surface-bg);
  color: var(--text-primary);
  padding: 10px 14px;
  font-size: 0.84rem;
  font-weight: 600;
  white-space: nowrap;
  scroll-snap-align: start;
}

.page-leaderboard .leaderboard-tab:hover {
  border-color: var(--accent-primary);
  background: var(--accent-soft);
}

.page-leaderboard .leaderboard-tab[aria-selected="true"] {
  border-color: var(--accent-primary);
  background: var(--accent-primary);
  color: #fff;
}

.page-leaderboard .leaderboard-tab:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* 1024px: medium laptops/tablets */
@media (max-width: 1024px) {
  .page-leaderboard .container {
    max-width: 980px;
  }

  .page-leaderboard .leaderboard-hero,
  .page-leaderboard .leaderboard-card {
    padding: var(--space-3);
  }
}

/* 768px: tablets */
@media (max-width: 768px) {
  .page-leaderboard .container {
    padding: var(--space-2);
  }

  .page-leaderboard .leaderboard-hero,
  .page-leaderboard .leaderboard-card {
    padding: var(--space-2);
  }

  .page-leaderboard .leaderboard-table th,
  .page-leaderboard .leaderboard-table td {
    padding: 10px 10px;
    font-size: 0.84rem;
  }

  .page-leaderboard .leaderboard-tab {
    padding: 10px 12px;
    font-size: 0.8rem;
  }

  .page-leaderboard .leaderboard-my-rank-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 640px: large phones / small phones landscape */
@media (max-width: 640px) {
  .page-leaderboard .leaderboard-hero h1 {
    font-size: 1.45rem;
  }

  .page-leaderboard .leaderboard-card-header h2 {
    font-size: 1.02rem;
  }

  .page-leaderboard .leaderboard-table col.leaderboard-col-rank {
    width: 15%;
  }

  .page-leaderboard .leaderboard-table col.leaderboard-col-username {
    width: 57%;
  }

  .page-leaderboard .leaderboard-table col.leaderboard-col-score {
    width: 28%;
  }

  .page-leaderboard .leaderboard-table th,
  .page-leaderboard .leaderboard-table td {
    padding: 9px 9px;
    font-size: 0.8rem;
  }

  .page-leaderboard .leaderboard-tabs {
    display: none;
  }

  .page-leaderboard .leaderboard-subject-select-wrap {
    display: block;
  }

  .page-leaderboard .leaderboard-self-rank {
    font-size: 0.84rem;
    padding: 10px 12px;
  }

  .page-leaderboard .leaderboard-my-rank-card {
    padding: 12px;
  }

  .page-leaderboard .leaderboard-my-rank-grid {
    grid-template-columns: 1fr;
  }
}

/* 480px: compact phones (includes 360px targets) */
@media (max-width: 480px) {
  .page-leaderboard .container {
    padding: 10px;
  }

  .page-leaderboard .leaderboard-main {
    gap: 10px;
  }

  .page-leaderboard .leaderboard-hero,
  .page-leaderboard .leaderboard-card {
    border-radius: 12px;
  }

  .page-leaderboard .leaderboard-table th,
  .page-leaderboard .leaderboard-table td {
    padding: 8px 7px;
    font-size: 0.76rem;
    line-height: 1.3;
  }

  .page-leaderboard .leaderboard-card-header h2 {
    font-size: 0.96rem;
  }

  .page-leaderboard .leaderboard-status,
  .page-leaderboard .leaderboard-empty,
  .page-leaderboard .leaderboard-self-rank {
    font-size: 0.8rem;
  }

  .page-leaderboard .leaderboard-tab {
    min-height: 44px;
    padding: 9px 11px;
    font-size: 0.78rem;
  }

  .page-leaderboard .leaderboard-subject-select {
    min-height: 44px;
    font-size: 0.82rem;
    padding: 9px 10px;
  }
}

html[data-theme='dark'] .page-leaderboard .leaderboard-rank-top1 {
  color: #fbbf24;
}

html[data-theme='dark'] .page-leaderboard .leaderboard-rank-top2 {
  color: #cbd5e1;
}

html[data-theme='dark'] .page-leaderboard .leaderboard-rank-top3 {
  color: #fdba74;
}