/*
 * Catalog homepage refresh.
 * Loaded after the legacy theme files so the existing result page can keep its
 * theme switch while the catalog adopts a compact, Luogu-inspired filter flow.
 */

body[data-theme="command-light"] {
  --catalog-ground: #f5f7fa;
  --catalog-surface: #ffffff;
  --catalog-surface-soft: #f8fafc;
  --catalog-ink: #2d333b;
  --catalog-muted: #6f7782;
  --catalog-border: #dfe3e8;
  --catalog-border-strong: #c8ced6;
  --catalog-accent: #3498db;
  --catalog-accent-strong: #2687c8;
  --catalog-accent-soft: #edf7fd;
  --catalog-tag: #eef2f6;
  --catalog-shadow: 0 12px 36px rgba(33, 43, 54, 0.07);
}

body[data-theme="command"] {
  --catalog-ground: #0d0f13;
  --catalog-surface: #17191f;
  --catalog-surface-soft: #1d2027;
  --catalog-ink: #f5f7fa;
  --catalog-muted: #a0a7b2;
  --catalog-border: #2b2f38;
  --catalog-border-strong: #3a404b;
  --catalog-accent: #53a9e2;
  --catalog-accent-strong: #67b5e8;
  --catalog-accent-soft: rgba(83, 169, 226, 0.14);
  --catalog-tag: #242831;
  --catalog-shadow: 0 14px 44px rgba(0, 0, 0, 0.24);
}

body[data-theme^="command"] {
  width: 100%;
  overflow-x: hidden;
  background: var(--catalog-ground);
  color: var(--catalog-ink);
  font-family: "Inter", "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
}

body[data-theme^="command"]::before {
  display: none;
}

body[data-theme^="command"] .site-header {
  width: auto;
  max-width: 1180px;
  min-height: 64px;
  border-bottom: 1px solid var(--catalog-border);
}

body[data-theme^="command"] .wordmark {
  color: var(--catalog-ink);
  font-family: inherit;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

body[data-theme^="command"] .header-meta {
  color: var(--catalog-muted);
  font-family: inherit;
  font-size: 12px;
  letter-spacing: 0;
  text-transform: none;
}

body[data-theme^="command"] .header-meta a {
  text-decoration: none;
  transition: color 150ms ease;
}

body[data-theme^="command"] .header-meta a:hover {
  color: var(--catalog-accent);
}

body[data-theme^="command"] .header-rule {
  width: 1px;
  height: 14px;
  background: var(--catalog-border-strong);
}

body[data-theme^="command"] .catalog-page {
  width: auto;
  max-width: 1180px;
  padding: 44px 0 96px;
}

.catalog-hero {
  max-width: 760px;
  margin-bottom: 28px;
}

.catalog-kicker {
  margin: 0 0 9px;
  color: var(--catalog-accent);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.12em;
}

.catalog-hero h1 {
  margin: 0;
  color: var(--catalog-ink);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 720;
  letter-spacing: -0.045em;
  line-height: 1.15;
}

.catalog-hero > p:last-child {
  margin: 14px 0 0;
  color: var(--catalog-muted);
  font-size: 15px;
  line-height: 1.7;
}

.filter-card {
  overflow: hidden;
  border: 1px solid var(--catalog-border);
  border-radius: 12px;
  background: var(--catalog-surface);
  box-shadow: var(--catalog-shadow);
}

.filter-row {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  align-items: center;
  min-height: 70px;
  padding: 14px 18px;
}

.filter-row > *,
.source-tabs,
.condition-grid {
  min-width: 0;
}

.source-row {
  border-bottom: 1px solid var(--catalog-border);
}

.filter-row-label {
  color: var(--catalog-muted);
  font-size: 13px;
  font-weight: 650;
}

.source-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.source-tabs button {
  min-width: 0;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--catalog-ink);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition:
    border-color 150ms ease,
    background-color 150ms ease,
    color 150ms ease,
    transform 150ms ease;
}

.source-tabs button:hover {
  border-color: var(--catalog-border);
  background: var(--catalog-surface-soft);
}

.source-tabs button:active {
  transform: translateY(1px);
}

.source-tabs button small {
  color: var(--catalog-muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  font-weight: 550;
}

.source-tabs button[aria-pressed="true"] {
  border-color: var(--catalog-accent);
  background: var(--catalog-accent);
  color: #ffffff;
}

.source-tabs button[aria-pressed="true"] small {
  color: rgba(255, 255, 255, 0.8);
}

.conditions-row {
  align-items: start;
  padding-block: 18px;
}

.conditions-row .filter-row-label {
  padding-top: 25px;
}

.condition-grid {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px;
}

.field-control,
.catalog-search,
.cf-range-form {
  display: grid;
  gap: 7px;
  margin: 0;
}

.field-control {
  flex: 0 1 190px;
  min-width: 170px;
}

.field-control > span,
.catalog-search > label,
.field-caption {
  color: var(--catalog-muted);
  font-size: 11px;
  font-weight: 650;
  line-height: 1;
}

.field-control select,
.catalog-search input,
.range-inputs input {
  height: 40px;
  border: 1px solid var(--catalog-border-strong);
  border-radius: 7px;
  outline: 0;
  background: var(--catalog-surface);
  color: var(--catalog-ink);
  font-size: 13px;
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease,
    background-color 150ms ease;
}

.field-control select {
  width: 100%;
  padding: 0 34px 0 11px;
  cursor: pointer;
}

.field-control select:hover,
.catalog-search input:hover,
.range-inputs input:hover {
  border-color: var(--catalog-muted);
}

.field-control select:focus,
.catalog-search input:focus,
.range-inputs input:focus {
  border-color: var(--catalog-accent);
  box-shadow: 0 0 0 3px var(--catalog-accent-soft);
}

.cf-range-form {
  flex: 0 1 340px;
  min-width: 320px;
}

.range-inputs {
  display: grid;
  grid-template-columns: minmax(78px, 1fr) auto minmax(78px, 1fr) auto;
  align-items: center;
  gap: 7px;
}

.range-inputs input {
  width: 100%;
  padding: 0 10px;
  font-variant-numeric: tabular-nums;
}

.range-separator {
  color: var(--catalog-muted);
  font-size: 12px;
}

.range-inputs button,
.search-input-row button {
  height: 40px;
  padding: 0 14px;
  border: 1px solid var(--catalog-accent);
  border-radius: 7px;
  background: var(--catalog-accent);
  color: #ffffff;
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
  transition:
    border-color 150ms ease,
    background-color 150ms ease,
    transform 150ms ease;
}

.range-inputs button:hover,
.search-input-row button:hover {
  border-color: var(--catalog-accent-strong);
  background: var(--catalog-accent-strong);
}

.range-inputs button:active,
.search-input-row button:active {
  transform: translateY(1px);
}

.catalog-search {
  flex: 1 1 290px;
  min-width: 260px;
}

.search-input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.catalog-search input {
  min-width: 0;
  padding: 0 12px;
  border-radius: 7px 0 0 7px;
}

.catalog-search input::placeholder,
.range-inputs input::placeholder {
  color: color-mix(in srgb, var(--catalog-muted) 72%, transparent);
}

.search-input-row button {
  border-radius: 0 7px 7px 0;
}

.clear-filters {
  height: 40px;
  padding: 0 13px;
  border: 1px solid var(--catalog-border-strong);
  border-radius: 7px;
  background: var(--catalog-surface);
  color: var(--catalog-muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition:
    border-color 150ms ease,
    color 150ms ease,
    background-color 150ms ease;
}

.clear-filters:not(:disabled):hover {
  border-color: var(--catalog-accent);
  background: var(--catalog-accent-soft);
  color: var(--catalog-accent-strong);
}

body[data-theme^="command"] .results-region {
  margin-top: 24px;
  padding: 24px;
  border: 1px solid var(--catalog-border);
  border-radius: 12px;
  background: var(--catalog-surface);
  box-shadow: var(--catalog-shadow);
}

body[data-theme^="command"] .results-toolbar {
  min-height: auto;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  padding: 0 0 20px;
}

body[data-theme^="command"] .results-toolbar h2 {
  margin: 0;
  color: var(--catalog-ink);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

body[data-theme^="command"] .active-filter-summary {
  margin: 0;
  color: var(--catalog-muted);
  font-size: 12px;
}

body[data-theme^="command"] .active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: -4px 0 18px;
}

body[data-theme^="command"] .active-filter {
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid color-mix(in srgb, var(--catalog-accent) 38%, var(--catalog-border));
  border-radius: 999px;
  background: var(--catalog-accent-soft);
  color: var(--catalog-accent-strong);
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
}

body[data-theme^="command"] .active-filter:hover {
  border-color: var(--catalog-accent);
  background: color-mix(in srgb, var(--catalog-accent) 17%, var(--catalog-surface));
}

body[data-theme^="command"] .results-list {
  display: grid;
  gap: 10px;
  border: 0;
}

body[data-theme^="command"] .problem-card {
  display: grid;
  grid-template-columns: 126px minmax(0, 1fr);
  gap: 18px;
  margin: 0;
  padding: 18px;
  border: 1px solid var(--catalog-border);
  border-radius: 9px;
  background: var(--catalog-surface);
  box-shadow: none;
  transition:
    border-color 150ms ease,
    background-color 150ms ease,
    transform 150ms ease;
}

body[data-theme^="command"] .problem-card:hover {
  border-color: color-mix(in srgb, var(--catalog-accent) 52%, var(--catalog-border));
  background: var(--catalog-surface-soft);
  transform: translateY(-1px);
}

body[data-theme^="command"] .problem-identity {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

body[data-theme^="command"] .source-label {
  padding: 4px 7px;
  border-radius: 5px;
  background: var(--catalog-accent-soft);
  color: var(--catalog-accent-strong);
  font-size: 10px;
  font-weight: 720;
  letter-spacing: 0.02em;
}

body[data-theme^="command"] .problem-id {
  color: var(--catalog-muted);
  font-size: 11px;
  font-weight: 600;
  overflow-wrap: anywhere;
}

body[data-theme^="command"] .problem-title {
  margin: 0;
  color: var(--catalog-ink);
  font-size: 16px;
  font-weight: 680;
  letter-spacing: -0.015em;
  line-height: 1.45;
}

body[data-theme^="command"] .problem-info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 12px;
}

body[data-theme^="command"] .problem-metadata {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

body[data-theme^="command"] .difficulty-label,
body[data-theme^="command"] .tag-chip {
  min-height: 27px;
  display: inline-flex;
  align-items: center;
  padding: 0 8px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: var(--catalog-tag);
  color: var(--catalog-muted);
  font-family: inherit;
  font-size: 10px;
  font-weight: 600;
}

body[data-theme^="command"] .difficulty-label {
  border-color: color-mix(in srgb, #f2a93b 38%, transparent);
  background: color-mix(in srgb, #f2a93b 13%, var(--catalog-surface));
  color: color-mix(in srgb, #c77b09 84%, var(--catalog-ink));
}

body[data-theme^="command"] .tag-chip {
  cursor: pointer;
}

body[data-theme^="command"] .tag-chip:hover {
  border-color: var(--catalog-border-strong);
  color: var(--catalog-ink);
}

body[data-theme^="command"] .problem-summary {
  margin: 11px 0 0;
  color: var(--catalog-muted);
  font-family: inherit;
  font-size: 12px;
  line-height: 1.65;
}

body[data-theme^="command"] .problem-summary.is-missing {
  opacity: 0.72;
}

body[data-theme^="command"] .problem-actions {
  display: flex;
  flex: none;
  gap: 7px;
}

body[data-theme^="command"] .problem-link {
  min-width: 66px;
  min-height: 29px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  border: 1px solid var(--catalog-border-strong);
  border-radius: 6px;
  background: var(--catalog-surface);
  color: var(--catalog-ink);
  font-size: 11px;
  font-weight: 600;
  text-decoration: none;
}

body[data-theme^="command"] .problem-link:hover {
  border-color: var(--catalog-accent);
  background: var(--catalog-accent-soft);
  color: var(--catalog-accent-strong);
}

body[data-theme^="command"] .problem-link.hydro-link {
  border-color: color-mix(in srgb, var(--catalog-accent) 62%, var(--catalog-border));
  background: var(--catalog-accent-soft);
  color: var(--catalog-accent-strong);
}

body[data-theme^="command"] .problem-link.hydro-link:hover {
  background: var(--catalog-accent);
  color: #ffffff;
}

body[data-theme^="command"] .problem-link.is-disabled {
  border-color: var(--catalog-border);
  background: var(--catalog-surface-soft);
  color: var(--catalog-muted);
}

body[data-theme^="command"] .loading-row {
  min-height: 112px;
  border: 1px solid var(--catalog-border);
  border-radius: 9px;
  background: var(--catalog-surface-soft);
}

body[data-theme^="command"] .loading-row span {
  background: color-mix(in srgb, var(--catalog-muted) 13%, transparent);
}

body[data-theme^="command"] .state-card {
  border: 1px dashed var(--catalog-border-strong);
  border-radius: 9px;
  background: var(--catalog-surface-soft);
}

body[data-theme^="command"] .state-action {
  border-radius: 7px;
  background: var(--catalog-accent);
  color: #ffffff;
}

body[data-theme^="command"] .pagination {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  margin-top: 24px;
  padding: 24px 0 0;
  border-top: 1px solid var(--catalog-border);
}

.pagination-total {
  margin: 0;
  color: var(--catalog-ink);
  font-size: 19px;
  font-weight: 650;
  white-space: nowrap;
}

.pagination-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

body[data-theme^="command"] .pagination-controls button {
  height: 40px;
  min-width: 40px;
  padding: 0 10px;
  border: 1px solid var(--catalog-border-strong);
  border-radius: 8px;
  background: var(--catalog-surface);
  color: var(--catalog-ink);
  cursor: pointer;
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  transition:
    border-color 150ms ease,
    background-color 150ms ease,
    color 150ms ease,
    transform 150ms ease;
}

body[data-theme^="command"] .pagination-controls .page-jump {
  min-width: 58px;
  font-size: 12px;
}

body[data-theme^="command"] .pagination-controls button:not(:disabled):hover {
  border-color: var(--catalog-accent);
  color: var(--catalog-accent-strong);
}

body[data-theme^="command"] .pagination-controls button:not(:disabled):active {
  transform: translateY(1px);
}

body[data-theme^="command"] .pagination-controls button.is-current {
  border-color: var(--catalog-accent);
  background: var(--catalog-accent);
  color: #ffffff;
  font-weight: 700;
}

body[data-theme^="command"] .pagination-controls button:disabled {
  cursor: not-allowed;
  opacity: 0.4;
}

@media (max-width: 1220px) {
  body[data-theme^="command"] .site-header,
  body[data-theme^="command"] .catalog-page {
    margin-right: 20px;
    margin-left: 20px;
  }
}

@media (max-width: 900px) {
  body[data-theme^="command"] .catalog-page {
    padding-top: 34px;
  }

  .filter-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .conditions-row .filter-row-label {
    padding-top: 0;
  }

  .field-control {
    flex-grow: 1;
  }

  body[data-theme^="command"] .pagination {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .pagination-controls {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 5px;
    scrollbar-width: thin;
  }
}

@media (max-width: 680px) {
  body[data-theme^="command"] .site-header,
  body[data-theme^="command"] .catalog-page {
    width: auto;
    max-width: 1180px;
    margin-right: 14px;
    margin-left: 14px;
  }

  body[data-theme^="command"] .header-meta > span,
  body[data-theme^="command"] .header-meta > a,
  body[data-theme^="command"] .header-rule {
    display: none;
  }

  .catalog-hero {
    margin-bottom: 22px;
  }

  .catalog-hero h1 {
    font-size: 31px;
  }

  .catalog-hero > p:last-child {
    font-size: 13px;
  }

  .filter-row {
    padding: 14px;
  }

  .source-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .source-tabs button {
    justify-content: center;
    padding-inline: 9px;
  }

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

  .field-control,
  .catalog-search,
  .cf-range-form {
    width: 100%;
    min-width: 0;
  }

  .clear-filters {
    width: 100%;
  }

  body[data-theme^="command"] .results-region {
    padding: 16px 14px;
  }

  body[data-theme^="command"] .results-toolbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  body[data-theme^="command"] .problem-card {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 15px;
  }

  body[data-theme^="command"] .problem-identity {
    flex-direction: row;
    align-items: center;
  }

  body[data-theme^="command"] .problem-info-row {
    align-items: flex-start;
    flex-direction: column;
  }

  body[data-theme^="command"] .problem-actions {
    width: 100%;
  }

  body[data-theme^="command"] .problem-link {
    flex: 1;
  }

  body[data-theme^="command"] .pagination-controls button {
    height: 36px;
    min-width: 36px;
    padding-inline: 8px;
    font-size: 13px;
  }

  body[data-theme^="command"] .pagination-controls .page-jump {
    min-width: 54px;
    font-size: 11px;
  }
}

@media (max-width: 420px) {
  .range-inputs {
    grid-template-columns: 1fr auto 1fr;
  }

  .range-inputs button {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .source-tabs button,
  .range-inputs button,
  .search-input-row button,
  body[data-theme^="command"] .problem-card,
  body[data-theme^="command"] .pagination-controls button {
    transition: none;
  }
}