.tier-page {
  --tier-s: #b42318;
  --tier-a: #b54708;
  --tier-b: #8a6116;
  --tier-c: #18794e;
  --tier-d: #2f6f9f;
  margin: 2rem auto 4rem;
  max-width: 1280px;
  padding: 0 1.5rem;
}

.tier-page-header {
  align-items: end;
  display: flex;
  gap: 2rem;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.tier-page-kicker {
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin: 0 0 0.5rem;
  text-transform: uppercase;
}

.tier-page-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  letter-spacing: -0.04em;
  margin: 0;
  text-wrap: balance;
}

.tier-filters {
  display: grid;
  flex: 0 0 min(470px, 44vw);
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tier-filter {
  color: var(--text-muted);
  display: grid;
  font-size: 0.75rem;
  font-weight: 700;
  gap: 0.35rem;
  letter-spacing: 0.04em;
  min-width: 0;
  text-transform: uppercase;
}

.tier-filter-control {
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-sizing: border-box;
  color: var(--text-primary);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 400;
  height: 44px;
  letter-spacing: 0;
  min-width: 0;
  padding: 0.65rem 0.8rem;
  text-transform: none;
  width: 100%;
}

.tier-filter-control--choice {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23555' d='M6 9 1 4h10z'/%3E%3C/svg%3E");
  background-position: right 0.75rem center;
  background-repeat: no-repeat;
  cursor: pointer;
  padding-right: 2.25rem;
}

button.tier-filter-control--choice {
  overflow: hidden;
  text-align: left;
  text-overflow: ellipsis;
  user-select: none;
  white-space: nowrap;
}

.tier-filter-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.16);
  outline: none;
}

.tier-board {
  background: var(--border);
  border: 1px solid var(--border);
  display: grid;
  gap: 1px;
}

.tier-board-row {
  background: var(--bg);
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  margin: 0;
  max-width: none;
  min-height: 245px;
  padding: 0;
  width: auto;
}

.tier-board-rail {
  align-items: center;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1rem 0.5rem;
  text-align: center;
}

.tier-board-row[data-tier="s"] .tier-board-rail {
  background: var(--tier-s);
}

.tier-board-row[data-tier="a"] .tier-board-rail {
  background: var(--tier-a);
}

.tier-board-row[data-tier="b"] .tier-board-rail {
  background: var(--tier-b);
}

.tier-board-row[data-tier="c"] .tier-board-rail {
  background: var(--tier-c);
}

.tier-board-row[data-tier="d"] .tier-board-rail {
  background: var(--tier-d);
}

.tier-board-letter {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}

.tier-board-rail[data-tier-description] {
  cursor: help;
  outline: none;
}

.tier-board-rail[data-tier-description]:focus-visible {
  box-shadow: inset 0 0 0 3px currentColor, inset 0 0 0 5px rgba(17, 24, 39, 0.45);
}

.tier-board-count {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-top: 0.5rem;
  opacity: 0.7;
  text-transform: uppercase;
}

.tier-board-items {
  align-items: start;
  display: flex;
  gap: 0.75rem;
  min-width: 0;
  overflow-x: auto;
  padding: 0.9rem;
  scrollbar-color: var(--border) transparent;
  scrollbar-width: thin;
}

.tier-board-empty {
  align-self: center;
  color: var(--text-muted);
  margin: auto;
}

.tier-card {
  color: var(--text-primary);
  display: grid;
  flex: 0 0 122px;
  gap: 0.45rem;
  grid-template-rows: 172px auto;
  min-width: 0;
  text-decoration: none;
}

.tier-card::after {
  display: none;
}

.tier-card-cover {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.08);
  overflow: hidden;
  position: relative;
  transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.tier-card:hover .tier-card-cover,
.tier-card:focus-visible .tier-card-cover {
  border-color: var(--accent);
  box-shadow: 0 7px 18px rgba(16, 24, 40, 0.16);
  transform: translateY(-3px);
}

.tier-card:focus-visible {
  outline: none;
}

.tier-card:focus-visible .tier-card-cover {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2), 0 7px 18px rgba(16, 24, 40, 0.16);
}

.tier-card-image {
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.tier-card--product .tier-card-image {
  background: var(--bg);
  box-sizing: border-box;
  object-fit: contain;
  padding: 0.35rem;
}

.tier-card-badge {
  align-items: center;
  background: rgba(17, 24, 39, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 4px;
  color: #fff;
  display: flex;
  font-size: 0.7rem;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  height: 1.65rem;
  justify-content: center;
  position: absolute;
  right: 0.4rem;
  top: 0.4rem;
  width: 2.45rem;
}

.tier-card-note {
  background: rgba(255, 255, 255, 0.94);
  border-radius: 3px;
  bottom: 0.4rem;
  color: #344054;
  font-size: 0.65rem;
  font-weight: 700;
  left: 0.4rem;
  max-width: calc(100% - 0.8rem);
  overflow: hidden;
  padding: 0.22rem 0.38rem;
  position: absolute;
  text-overflow: ellipsis;
  text-transform: capitalize;
  white-space: nowrap;
}

.tier-card-title {
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  color: var(--text-primary);
  display: -webkit-box;
  font-size: 0.76rem;
  font-weight: 650;
  line-height: 1.25;
  min-height: 1.9em;
  overflow: hidden;
  text-align: center;
}

.tier-tooltip {
  background: #111827;
  border: 1px solid #344054;
  border-radius: 6px;
  box-shadow: 0 12px 32px rgba(16, 24, 40, 0.3);
  color: #f9fafb;
  font-size: 0.8rem;
  line-height: 1.4;
  max-width: min(300px, calc(100vw - 24px));
  padding: 0.8rem;
  pointer-events: none;
  position: fixed;
  width: max-content;
  z-index: 1200;
}

.tier-tooltip--interactive {
  pointer-events: auto;
}

.tier-tooltip[hidden] {
  display: none;
}

.tier-tooltip-title {
  border-bottom: 1px solid #344054;
  font-size: 0.9rem;
  font-weight: 750;
  margin-bottom: 0.55rem;
  padding-bottom: 0.5rem;
}

.tier-tooltip-meta {
  color: #d0d5dd;
  margin-bottom: 0.55rem;
}

.tier-tooltip-section {
  color: #98a2b3;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin: 0.65rem 0 0.25rem;
  text-transform: uppercase;
}

.tier-tooltip-row {
  align-items: baseline;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
}

.tier-tooltip-row + .tier-tooltip-row {
  margin-top: 0.2rem;
}

.tier-tooltip-row > :last-child {
  color: #e4e7ec;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

@media (max-width: 720px) {
  .tier-page {
    padding: 0 0.75rem;
  }

  .tier-page-header {
    align-items: stretch;
    flex-direction: column;
    gap: 1.25rem;
  }

  .tier-filters {
    flex-basis: auto;
    width: 100%;
  }

  .tier-board-row {
    grid-template-columns: 58px minmax(0, 1fr);
    min-height: 215px;
  }

  .tier-board-letter {
    font-size: 2.25rem;
  }

  .tier-board-items {
    gap: 0.6rem;
    padding: 0.7rem;
  }

  .tier-card {
    flex-basis: 104px;
    grid-template-rows: 148px auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tier-card-cover {
    transition: none;
  }

  .tier-card:hover .tier-card-cover,
  .tier-card:focus-visible .tier-card-cover {
    transform: none;
  }
}