:root {
  --background: #f3f6f8;
  --surface: #ffffff;
  --surface-soft: #f7f9fb;
  --ink: #12212b;
  --muted: #63727c;
  --line: #dfe7eb;
  --accent: #087ea4;
  --accent-dark: #075c79;
  --accent-soft: #e6f5f9;
  --navy: #123142;
  --shadow: 0 14px 38px rgba(19, 49, 66, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(8, 126, 164, 0.08), transparent 32rem),
    var(--background);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

main {
  width: min(1180px, calc(100% - 40px));
  margin: 36px auto 80px;
}

.page-header {
  position: relative;
  overflow: hidden;
  padding: 40px;
  background: linear-gradient(135deg, #102d3e 0%, #164d61 62%, #087ea4 100%);
  border-radius: 28px;
  box-shadow: var(--shadow);
  color: #ffffff;
}

.page-header::after {
  position: absolute;
  right: -100px;
  top: -150px;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  content: "";
}

.eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.page-header .eyebrow {
  color: #8ed7e7;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  position: relative;
  z-index: 1;
  margin-bottom: 10px;
  font-size: clamp(36px, 6vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.page-header > p {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 17px;
}

h2 {
  margin-bottom: 0;
  color: var(--navy);
  font-size: 25px;
  letter-spacing: -0.025em;
}

.stats-bar {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  margin-top: 30px;
}

.stat-card {
  min-width: 0;
  padding: 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 16px;
  backdrop-filter: blur(10px);
}

.stat-number,
.stat-label {
  display: block;
}

.stat-number {
  overflow-wrap: anywhere;
  color: #ffffff;
  font-size: 24px;
  font-weight: 780;
  letter-spacing: -0.03em;
}

.stat-label {
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
}

.filter-panel {
  margin-top: 24px;
  padding: 26px;
  background: var(--surface);
  border: 1px solid rgba(18, 49, 66, 0.08);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.filter-panel-heading,
.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-end;
}

.clear-button,
.toolbar-button {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  color: var(--navy);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
}

.clear-button {
  padding: 9px 14px;
  color: var(--accent-dark);
}

.toolbar-button {
  padding: 12px 15px;
}

.clear-button:hover,
.toolbar-button:hover {
  border-color: #b7cbd3;
  background: var(--surface-soft);
}

.toolbar {
  display: flex;
  gap: 10px;
  margin-top: 22px;
}

.search-field {
  position: relative;
  flex: 1;
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
  transform: translateY(-54%);
  pointer-events: none;
}

#searchInput {
  width: 100%;
  padding: 13px 18px 13px 44px;
  border: 1px solid #cfdce2;
  border-radius: 14px;
  outline: none;
  background: var(--surface-soft);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
}

#searchInput::placeholder {
  color: #81909a;
}

#searchInput:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(8, 126, 164, 0.12);
  background: #ffffff;
}

.filter-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.65fr) minmax(0, 1.35fr);
  gap: 24px;
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.filter-group {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.filter-group legend {
  margin-bottom: 10px;
  padding: 0;
  color: var(--navy);
  font-size: 13px;
  font-weight: 800;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-chip {
  display: inline-flex;
  gap: 7px;
  align-items: center;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-soft);
  color: #354852;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 720;
  transition: 0.16s ease;
}

.filter-chip span {
  color: #7a8a93;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.filter-chip:hover {
  border-color: #b6cbd3;
  background: #ffffff;
}

.filter-chip.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 5px 14px rgba(8, 126, 164, 0.2);
}

.filter-chip.is-active span {
  color: rgba(255, 255, 255, 0.75);
}

.result-status {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.download-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.download-card {
  display: flex;
  min-width: 0;
  min-height: 112px;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 18px 20px;
  border: 1px solid #b9d7e1;
  border-radius: 17px;
  background: linear-gradient(135deg, #f1fafc 0%, #ffffff 100%);
  color: var(--navy);
  cursor: pointer;
  font: inherit;
  text-align: left;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.download-card-filtered:not(:disabled) {
  border-color: #87c6d7;
  background: linear-gradient(135deg, #e7f7fa 0%, #f8fcfd 100%);
}

.download-card:hover:not(:disabled) {
  border-color: var(--accent);
  box-shadow: 0 9px 22px rgba(8, 126, 164, 0.12);
  transform: translateY(-1px);
}

.download-card:disabled {
  border-color: var(--line);
  background: var(--surface-soft);
  color: #81909a;
  cursor: not-allowed;
}

.download-card-copy,
.download-kicker,
.download-title,
.download-meta {
  display: block;
}

.download-card-copy {
  min-width: 0;
}

.download-kicker {
  margin-bottom: 5px;
  color: var(--accent-dark);
  font-size: 10px;
  font-weight: 820;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.download-card:disabled .download-kicker {
  color: #8b989f;
}

.download-title {
  font-size: 15px;
  font-weight: 780;
  line-height: 1.35;
}

.download-meta {
  margin-top: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 550;
}

.download-arrow {
  display: inline-grid;
  flex: 0 0 36px;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: #ffffff;
  font-size: 20px;
  font-weight: 750;
}

.download-card:disabled .download-arrow {
  background: #dce4e8;
  color: #8a989f;
}

.download-note {
  margin: 10px 2px 0;
  color: #788890;
  font-size: 11px;
}

.manifest-link {
  display: inline-block;
  margin: 10px 2px 0;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.manifest-link:hover {
  color: var(--accent);
}

.section-heading {
  margin: 42px 2px 18px;
}

.section-count {
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.repository {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.supergroup,
.group,
.genome {
  overflow: hidden;
}

.supergroup > summary,
.group > summary,
.genome > summary {
  display: flex;
  gap: 12px;
  align-items: center;
  cursor: pointer;
  list-style: none;
}

.supergroup > summary::-webkit-details-marker,
.group > summary::-webkit-details-marker,
.genome > summary::-webkit-details-marker {
  display: none;
}

.supergroup > summary::before,
.group > summary::before,
.genome > summary::before {
  flex: 0 0 auto;
  color: #7d8e97;
  content: "›";
  font-size: 24px;
  line-height: 1;
  transition: transform 0.16s ease;
}

.supergroup[open] > summary::before,
.group[open] > summary::before,
.genome[open] > summary::before {
  transform: rotate(90deg);
}

.title {
  flex: 1;
  min-width: 0;
  overflow-wrap: anywhere;
}

.count {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 13px;
  font-weight: 550;
  white-space: nowrap;
}

.summary-icon {
  display: inline-grid;
  flex: 0 0 27px;
  width: 27px;
  height: 27px;
  place-items: center;
  border-radius: 9px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 11px;
}

.supergroup {
  background: var(--surface);
  border: 1px solid rgba(18, 49, 66, 0.08);
  border-radius: 20px;
  box-shadow: 0 7px 24px rgba(19, 49, 66, 0.055);
}

.supergroup > summary {
  padding: 19px 22px;
  font-size: 18px;
  font-weight: 780;
}

.group-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0 16px 16px;
}

.group {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.group > summary {
  padding: 15px 17px;
  font-size: 15px;
  font-weight: 740;
}

.group .summary-icon {
  background: #eef1fb;
  color: #4f65a2;
}

.genome-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 12px 12px;
}

.genome {
  background: #ffffff;
  border: 1px solid #e2e9ed;
  border-radius: 13px;
}

.genome > summary {
  padding: 12px 14px;
  font-size: 14px;
  font-weight: 680;
}

.genome .summary-icon {
  background: #f2f6f7;
  color: #637985;
}

.genome-info {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px 16px;
  margin: 0 14px 10px 50px;
  padding: 12px 14px;
  background: #f5f8fa;
  border-radius: 10px;
  color: #53656f;
  font-size: 12px;
  overflow-wrap: anywhere;
}

.genome-info strong {
  color: var(--navy);
  white-space: nowrap;
}

.info-item {
  display: flex;
  min-width: 0;
  gap: 5px;
  align-items: baseline;
}

.info-item span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.file-list {
  margin: 0;
  padding: 0 16px 14px 50px;
  list-style: none;
}

.file-row {
  border-top: 1px solid #e5ecef;
}

.file-row a {
  display: grid;
  grid-template-columns: 25px minmax(0, 1fr) auto;
  gap: 9px;
  align-items: center;
  padding: 10px 2px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 620;
  text-decoration: none;
}

.file-row a:hover .file-name {
  text-decoration: underline;
}

.file-icon {
  font-size: 15px;
}

.file-name {
  overflow-wrap: anywhere;
}

.file-size {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.empty-state {
  margin-top: 18px;
  padding: 48px 24px;
  border: 1px dashed #bdcbd1;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.65);
  text-align: center;
}

.empty-state > span {
  color: var(--accent);
  font-size: 40px;
}

.empty-state h3 {
  margin: 8px 0 4px;
}

.empty-state p {
  margin-bottom: 0;
  color: var(--muted);
}

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

button:focus-visible,
summary:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(8, 126, 164, 0.35);
  outline-offset: 3px;
}

@media (max-width: 960px) {
  .stats-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .filter-grid {
    grid-template-columns: 1fr;
  }

  .download-actions {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  main {
    width: min(100% - 24px, 1180px);
    margin-top: 12px;
  }

  .page-header,
  .filter-panel {
    padding: 22px;
    border-radius: 20px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .toolbar {
    flex-wrap: wrap;
  }

  .search-field {
    flex-basis: 100%;
  }

  .toolbar-button {
    flex: 1;
  }

  .filter-panel-heading,
  .section-heading {
    align-items: flex-start;
  }

  .supergroup > summary,
  .group > summary,
  .genome > summary {
    align-items: flex-start;
  }

  .count {
    white-space: normal;
  }

  .genome-info {
    grid-template-columns: 1fr;
    margin-left: 14px;
  }

  .file-list {
    padding-left: 16px;
  }

  .file-row a {
    grid-template-columns: 24px minmax(0, 1fr);
  }

  .file-size {
    grid-column: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}