:root {
  --bg: #f3f7fc;
  --bg-strong: #e4eefb;
  --panel: #ffffff;
  --panel-border: #d1dff2;
  --text: #0c1a33;
  --muted: #374766;
  --accent: #1f5fd1;
  --accent-strong: #0a357f;
  --accent-deep: #06224f;
  --accent-soft: #c6daf6;
  --accent-tint: #e6effc;
  --success: #146c3c;
  --danger: #9a2020;
  --shadow: 0 1px 0 rgba(10, 53, 127, 0.04), 0 2px 12px rgba(10, 53, 127, 0.08);
  --radius-lg: 6px;
  --radius-md: 4px;
  --radius-sm: 3px;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, "Helvetica Neue", Arial, sans-serif;
  --display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: var(--display);
}

* {
  box-sizing: border-box;
}

html, body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--sans);
  font-feature-settings: "cv11", "ss01", "ss03";
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
}

/* --------------- Navigation --------------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #ffffff;
  border-bottom: 1px solid var(--panel-border);
}

.site-nav__inner {
  width: min(1280px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 0.75rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-nav__brand,
.site-nav__links a {
  color: var(--text);
  text-decoration: none;
}

.site-nav__brand {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.015em;
  color: var(--accent-strong);
}

.site-nav__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.site-nav__links a {
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid transparent;
  font-size: 0.92rem;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}

.site-nav__links a:hover {
  background: var(--accent-tint);
  color: var(--accent-strong);
  border-color: var(--accent-soft);
}

/* --------------- Layout --------------- */
.page-shell {
  width: min(1280px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 3rem;
}

.page-shell--detail {
  width: min(1180px, calc(100% - 2rem));
}

/* --------------- Hero --------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 2.6rem 2rem 2.4rem;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(1100px 260px at 0% -10%, rgba(120, 170, 255, 0.35), transparent 60%),
    radial-gradient(700px 220px at 100% 110%, rgba(255, 255, 255, 0.12), transparent 60%),
    linear-gradient(135deg, var(--accent-deep) 0%, var(--accent-strong) 55%, var(--accent) 100%);
  color: #ffffff;
  box-shadow: var(--shadow);
}

.hero--detail {
  margin-top: 0.7rem;
  padding: 2rem 1.75rem;
}

.hero h1 {
  margin: 0.4rem 0 0.75rem;
  max-width: 22ch;
  font-family: var(--display);
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.hero-copy {
  max-width: 60rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.55;
}

.hero-actions,
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.2rem;
}

.hero-tags span,
.back-link {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.12);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #ffffff;
  text-decoration: none;
}

.back-link {
  display: inline-flex;
  margin-bottom: 0.5rem;
  background: #ffffff;
  color: var(--accent-strong);
  border: 1px solid var(--panel-border);
  font-weight: 600;
}

.back-link:hover {
  background: var(--accent-tint);
}

/* --------------- Grid --------------- */
.content-grid,
.detail-layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.panel {
  padding: 1.25rem;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow);
  min-width: 0;
}

#csv-panel,
#pdf-panel,
.detail-layout > .panel:nth-child(2),
.detail-layout > .panel:nth-child(3) {
  grid-column: span 6;
}

#manual-panel,
.panel--records,
.panel--wide,
.detail-layout > .panel:nth-child(1) {
  grid-column: 1 / -1;
}

.panel-head {
  margin-bottom: 0.85rem;
}

.panel-head--split,
.session-card,
.card-heading,
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.eyebrow {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.panel h2,
.panel h3,
.detail-link-card h3,
.detail-record h3 {
  margin: 0.25rem 0 0;
  font-family: var(--display);
  font-size: 1.4rem;
  letter-spacing: -0.015em;
  color: var(--text);
  font-weight: 700;
}

.record-body h3,
.detail-link-card h3,
.detail-record h3 {
  font-size: 1.1rem;
}

/* --------------- Forms --------------- */
.stack-form {
  display: grid;
  gap: 0.85rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--text);
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 6rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 40px;
  padding: 0.55rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  font-weight: 600;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}

.button--primary {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.button--primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.button--secondary {
  background: var(--accent-strong);
  color: #ffffff;
  border-color: var(--accent-strong);
}

.button--secondary:hover {
  background: var(--accent);
}

.button--ghost {
  background: #ffffff;
  color: var(--accent-strong);
  border-color: var(--panel-border);
}

.button--ghost:hover {
  background: var(--accent-tint);
  border-color: var(--accent-soft);
}

.button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --------------- Database layout --------------- */
.db-header {
  margin-bottom: 0;
}

.db-header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.db-search-input {
  display: block;
  width: 100%;
  margin-top: 0.85rem;
}

.db-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.1rem;
  align-items: start;
  margin-top: 1rem;
  border-top: 1px solid var(--panel-border);
  padding-top: 1rem;
}

/* Sidebar */
.filter-sidebar {
  position: sticky;
  top: calc(57px + 0.75rem);
  max-height: calc(100vh - 90px);
  overflow-y: auto;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-soft) transparent;
}

/* Mobile drawer chrome — hidden on desktop */
.filter-sidebar__mobile-head {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--panel-border);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text);
}

.filter-sidebar__close {
  background: none;
  border: none;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
  padding: 0 0.25rem;
}

.filters-toggle {
  display: none;
}

.filters-toggle__icon {
  font-size: 1.05rem;
  line-height: 1;
}

.filter-backdrop {
  display: none;
}

.filter-sidebar::-webkit-scrollbar {
  width: 6px;
}

.filter-sidebar::-webkit-scrollbar-thumb {
  background: var(--accent-soft);
  border-radius: 3px;
}

.sidebar-filter-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--panel-border);
}

.sidebar-filter-head span {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text);
}

.sidebar-filter-clear {
  min-height: auto;
  background: none;
  border: none;
  padding: 0;
  border-radius: 0;
  font-size: 0.78rem;
  font-family: inherit;
  color: var(--accent);
  cursor: pointer;
}

.sidebar-filter-clear:hover {
  text-decoration: underline;
}

/* Filter sections */
.filter-section {
  border-bottom: 1px solid var(--panel-border);
}

.filter-section:last-child {
  border-bottom: none;
}

.filter-section > summary {
  list-style: none;
  display: flex;
  align-items: center;
  padding: 0.6rem 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  gap: 0.5rem;
}

.filter-section__title {
  flex: 1;
}

.filter-section > summary::-webkit-details-marker {
  display: none;
}

.filter-section > summary::after {
  content: "▾";
  flex-shrink: 0;
  font-size: 0.8rem;
  color: var(--muted);
  transition: transform 180ms ease;
}

.filter-section:not([open]) > summary::after {
  transform: rotate(-90deg);
}

.filter-section__body {
  padding: 0.2rem 0.6rem 0.65rem;
  display: flex;
  flex-direction: column;
}

.filter-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.4rem;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  color: var(--text);
  cursor: pointer;
  transition: background 100ms ease;
  line-height: 1.35;
}

.filter-option[hidden] {
  display: none;
}

.filter-option:hover {
  background: var(--accent-tint);
}

.filter-option input[type="checkbox"],
.filter-option input[type="radio"] {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  min-width: 14px;
  padding: 0;
  border: none;
  border-radius: 2px;
  background: none;
  accent-color: var(--accent);
  cursor: pointer;
}

.filter-option input[type="checkbox"]:focus,
.filter-option input[type="radio"]:focus {
  outline: 2px solid var(--accent-soft);
}

.filter-section-clear {
  all: unset;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  cursor: pointer;
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  flex-shrink: 0;
  line-height: 1;
  transition: background 100ms ease;
}

.filter-section-clear:hover {
  background: var(--accent-tint);
}

.filter-count {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--bg-strong);
  border-radius: 10px;
  padding: 0.05rem 0.45rem;
  min-width: 1.6em;
  text-align: center;
  flex-shrink: 0;
  transition: opacity 150ms ease;
}

.filter-option--zero {
  opacity: 0.35;
}

.filter-option--zero .filter-count {
  background: transparent;
}

.filter-see-all {
  align-self: flex-start;
  margin-top: 0.3rem;
  margin-left: 0.4rem;
  min-height: auto;
  background: none;
  border: none;
  padding: 0;
  border-radius: 0;
  font-size: 0.74rem;
  font-family: inherit;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  cursor: pointer;
}

.filter-see-all:hover {
  text-decoration: underline;
}

.db-results {
  min-width: 0;
}

/* --------------- Combobox --------------- */
.filter-combo {
  position: relative;
  display: flex;
  align-items: center;
}

.filter-combo input[type="text"] {
  width: 100%;
  padding-right: 1.6rem;
  cursor: default;
}

.filter-combo input[type="text"].combo-open {
  cursor: text;
}

.combo-clear {
  position: absolute;
  right: 0.4rem;
  background: none;
  border: none;
  padding: 0 0.2rem;
  font-size: 0.85rem;
  color: var(--muted);
  cursor: pointer;
  line-height: 1;
}

.combo-list {
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  right: 0;
  z-index: 200;
  list-style: none;
  margin: 0;
  padding: 0.25rem 0;
  background: #ffffff;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  max-height: 14rem;
  overflow-y: auto;
  overflow-x: hidden;
}

.combo-list li {
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.88rem;
}

.combo-list li:hover,
.combo-list li[aria-selected="true"] {
  background: var(--accent-tint);
}

.combo-list li[data-picked="true"] {
  background: var(--accent-tint);
  color: var(--accent-strong);
  font-weight: 600;
}

.combo-list li[data-picked="true"]::before {
  content: "\2713  ";
}

.combo-list li[hidden] {
  display: none;
}

/* --------------- Sources & cards --------------- */
.source-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.9rem;
}

.source-list--compact,
.detail-links--stacked {
  grid-template-columns: 1fr;
}

.source-card,
.detail-link-card,
.detail-record {
  display: grid;
  gap: 0.55rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--panel-border);
  background: #ffffff;
}

/* ── Records grid: 3 per row by default, responsive fallback ── */
.records-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.detail-links,
.detail-records {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.9rem;
}

.record-card {
  display: grid;
  grid-template-rows: 200px 1fr;
  overflow: hidden;
  min-height: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--panel-border);
  background: #ffffff;
  min-width: 0;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.record-card--link {
  text-decoration: none;
  color: inherit;
}

.record-card--link:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 18px rgba(11, 62, 143, 0.1);
}

.record-image {
  height: 200px;
  width: 100%;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: var(--bg-strong);
}

.record-image img,
.gallery-card img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: cover;
  display: block;
}

.record-image__empty,
.gallery-stage__empty {
  display: grid;
  place-items: center;
  padding: 1rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.55;
  font-size: 0.85rem;
}

.record-body {
  display: grid;
  gap: 0.55rem;
  padding: 0.9rem 1rem;
  min-width: 0;
}

.record-body > * {
  min-width: 0;
}

.record-type {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--accent-tint);
  color: var(--accent-strong);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}

.record-copy,
.muted,
.small-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  word-wrap: break-word;
  overflow-wrap: anywhere;
}

.detail-copy {
  display: grid;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.detail-copy p {
  margin: 0;
  line-height: 1.65;
  color: var(--text);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.4rem;
}

.chip-row--spaced {
  margin: 0.85rem 0 0;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  width: fit-content;
  padding: 0.28rem 0.55rem;
  border-radius: var(--radius-sm);
  background: var(--accent-tint);
  color: var(--accent-strong);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
  word-break: break-word;
  white-space: normal;
  border: 1px solid var(--accent-soft);
}

.meta-chip--text {
  text-transform: none;
  font-size: 0.78rem;
  letter-spacing: 0;
  font-weight: 500;
}

.meta-chip--alias {
  background: #ffffff;
  color: var(--text);
  font-style: italic;
  text-transform: none;
  font-size: 0.78rem;
  letter-spacing: 0;
  font-weight: 500;
}

.meta-chip--iarc {
  background: #fde9e9;
  color: #7a2020;
  border-color: #f1c3c3;
}

.meta-chip--epa {
  background: #e3f3e8;
  color: #1a5c28;
  border-color: #c2e3cd;
}

.meta-chip--cancer-type {
  background: #fde9e9;
  color: #7a2020;
  border-color: #f1c3c3;
}

.meta-chip--infection {
  background: #fff0d9;
  color: #8a4a00;
  border-color: #f0d8ae;
}

.meta-chip--rank {
  background: var(--accent-tint);
  color: var(--accent-strong);
  border-color: var(--accent-soft);
}

.meta-chip--strains {
  background: #e3f3e8;
  color: #1a5c28;
  border-color: #c2e3cd;
}

/* Phylogeny / strain tree on detail page */
.strain-tree-container {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  background: var(--bg);
}

.strain-tree-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.7rem;
}

.strain-tree-toolbar__title h3 {
  margin: 0;
  font-size: 1.05rem;
}

.strain-tree-toolbar__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--muted);
  align-items: center;
}

.legend-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-right: 0.25rem;
  vertical-align: middle;
}
.legend-dot--genus { background: var(--accent-strong); }
.legend-dot--species { background: var(--accent); }
.legend-dot--strain { background: #2f7dd1; }
.legend-dot--variant { background: #7a3a9a; }

.strain-tree-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.8rem;
  flex: 1 1 320px;
}

.strain-tree-filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem;
}

.strain-tree-filter-group__label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-right: 0.2rem;
}

.strain-tree-chip {
  font-size: 0.75rem;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  background: #ffffff;
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.strain-tree-chip:hover {
  background: var(--accent-tint);
}
.strain-tree-chip--active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.strain-tree-stage {
  width: 100%;
  overflow-x: auto;
  background: #ffffff;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  padding: 0.4rem;
}

.strain-tree-svg {
  display: block;
}

.strain-tree-branch {
  stroke: var(--accent-strong);
  stroke-width: 1.4;
  fill: none;
}
.strain-tree-branch--muted {
  stroke: var(--panel-border);
}

.strain-tree-node {
  stroke: #fff;
  stroke-width: 1;
}
.strain-tree-node--muted {
  opacity: 0.25;
}

.strain-tree-label {
  font: 11px/1.2 var(--sans);
  fill: var(--text);
}
.strain-tree-label--muted {
  fill: var(--muted);
}

.strain-tree-summary {
  margin-top: 0.5rem;
  font-size: 0.78rem;
}

.meta-list,
.detail-meta {
  display: grid;
  gap: 0.55rem;
  padding-top: 0.7rem;
  margin-top: 0.25rem;
  border-top: 1px solid var(--panel-border);
}

.meta-list > p,
.detail-meta > p {
  margin: 0;
  line-height: 1.55;
}

.detail-meta {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.7rem 1rem;
}

.meta-list strong,
.detail-meta strong {
  color: var(--text);
}

.card-footer {
  padding-top: 0.35rem;
  border-top: 1px solid var(--panel-border);
}

.card-arrow {
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}

.source-link {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  background: #ffffff;
  color: var(--accent-strong);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.88rem;
}

.source-link:hover {
  background: var(--accent-tint);
  border-color: var(--accent-soft);
}

.details-panel {
  border-radius: var(--radius-md);
  border: 1px solid var(--panel-border);
  background: #ffffff;
  padding: 0.85rem 1rem;
}

.details-panel summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
}

.details-panel[open] summary {
  margin-bottom: 0.75rem;
}

.details-panel--spaced {
  margin-top: 0.85rem;
}

.gallery-section + .gallery-section {
  margin-top: 1.15rem;
}

/* --------------- Gallery --------------- */
.gallery-stage {
  display: grid;
  grid-template-rows: auto auto auto;
  gap: 0;
  margin-top: 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--panel-border);
  overflow: hidden;
  background: #ffffff;
  min-width: 0;
}

.gallery-stage__frame {
  display: grid;
  place-items: center;
  overflow: hidden;
  position: relative;
  background: var(--bg-strong);
  min-height: 260px;
  max-height: 480px;
  width: 100%;
}

.gallery-stage__frame img {
  width: 100%;
  max-width: 100%;
  max-height: 480px;
  object-fit: contain;
  display: block;
  transition: opacity 180ms ease;
}

.gallery-stage__frame img.gallery-img--loading {
  opacity: 0.4;
}

.gallery-stage__empty {
  min-height: 200px;
  padding: 1.5rem;
}

.gallery-stage__counter {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  background: rgba(15, 28, 46, 0.75);
  color: #fff;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.22rem 0.55rem;
  border-radius: var(--radius-sm);
  pointer-events: none;
}

.gallery-stage__attribution {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.55rem 0.9rem;
  border-top: 1px solid var(--panel-border);
  background: var(--bg);
  flex-wrap: wrap;
}

.gallery-stage__source-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.76rem;
  color: var(--muted);
  font-weight: 500;
}

.gallery-stage__source-badge::before {
  content: "\1F4CC";
  font-size: 0.72rem;
}

.gallery-stage__source-link {
  font-size: 0.82rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.gallery-stage__source-link:hover {
  text-decoration: underline;
}

.gallery-stage__meta {
  display: grid;
  gap: 0.35rem;
  padding: 0.85rem 1rem 1rem;
  border-top: 1px solid var(--panel-border);
}

.gallery-thumb-row {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  border-top: 1px solid var(--panel-border);
  background: var(--bg);
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-soft) transparent;
}

.gallery-thumb-row::-webkit-scrollbar {
  height: 6px;
}

.gallery-thumb-row::-webkit-scrollbar-thumb {
  background: var(--accent-soft);
  border-radius: 3px;
}

.gallery-thumb {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.35rem;
  width: 96px;
  font: inherit;
  color: var(--text);
  text-align: center;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  background: #ffffff;
  cursor: pointer;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.gallery-thumb:hover {
  border-color: var(--accent-soft);
}

.gallery-thumb--active {
  border-color: var(--accent);
}

.gallery-thumb img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-sm);
  background: var(--bg-strong);
}

.gallery-thumb__label {
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

.gallery-thumb__source {
  color: var(--accent);
  font-size: 0.68rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.gallery-card {
  overflow: hidden;
  margin: 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--panel-border);
  background: #ffffff;
}

.gallery-card img {
  height: 200px;
}

.gallery-card figcaption {
  padding: 0.8rem 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.detail-list-block + .detail-list-block {
  margin-top: 1rem;
}

.chem-props {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.35rem 1.25rem;
  margin: 0;
  font-size: 0.9rem;
}

.chem-props dt {
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.chem-props dd {
  margin: 0;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.detail-list-block h3 {
  margin: 0;
}

.notice {
  margin: 0.75rem 0 0;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  line-height: 1.45;
  background: #ffffff;
}

.notice[hidden] {
  display: none;
}

.notice--soft {
  background: var(--accent-tint);
  border-color: var(--accent-soft);
  color: var(--accent-strong);
}

.notice--info {
  background: var(--accent-tint);
  border-color: var(--accent-soft);
  color: var(--accent-strong);
}

.notice--success {
  background: #e3f3e8;
  border-color: #c2e3cd;
  color: var(--success);
}

.notice--error {
  background: #fde9e9;
  border-color: #f1c3c3;
  color: var(--danger);
}

code {
  padding: 0.15rem 0.35rem;
  border-radius: 3px;
  background: var(--bg-strong);
  font-family: "SFMono-Regular", Consolas, Menlo, monospace;
  font-size: 0.92em;
}

/* --------------- Pagination --------------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  background: #ffffff;
}

.pagination__controls {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.pagination__info {
  font-size: 0.85rem;
  color: var(--muted);
}

.pagination__page-size {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.pagination__page-size select {
  width: auto;
  padding: 0.35rem 0.5rem;
  min-width: 70px;
}

.pagination__button {
  min-height: 34px;
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
}

.session-card {
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  background: var(--accent-tint);
  margin-top: 0.85rem;
}

/* --------------- Responsive breakpoints --------------- */

/* Tablet: 3 → 2 columns */
@media (max-width: 1024px) {
  .records-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .db-layout {
    grid-template-columns: 220px 1fr;
  }
}

@media (max-width: 920px) {
  #csv-panel,
  #pdf-panel,
  .detail-layout > .panel:nth-child(2),
  .detail-layout > .panel:nth-child(3) {
    grid-column: 1 / -1;
  }

  .db-layout {
    grid-template-columns: 1fr;
  }

  /* Sidebar becomes a slide-in drawer on mobile */
  .filter-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: auto;
    width: min(320px, 92vw);
    max-height: 100vh;
    height: 100vh;
    margin: 0;
    z-index: 40;
    border-radius: 0;
    border-left: 1px solid var(--panel-border);
    box-shadow: -8px 0 24px rgba(11, 62, 143, 0.12);
    transform: translateX(100%);
    transition: transform 220ms ease;
  }

  .filter-sidebar--open {
    transform: translateX(0);
  }

  .filter-sidebar__mobile-head {
    display: flex;
    position: sticky;
    top: 0;
    background: #ffffff;
    z-index: 1;
  }

  .filters-toggle {
    display: inline-flex;
  }

  .filter-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 28, 46, 0.4);
    z-index: 35;
  }

  .filter-backdrop--open {
    display: block;
  }

  body.filters-open {
    overflow: hidden;
  }

  .session-card,
  .panel-head--split,
  .card-heading,
  .card-footer,
  .site-nav__inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* Mobile: 2 → 1 column */
@media (max-width: 680px) {
  .records-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 1rem, 1280px);
    padding-top: 0.6rem;
  }

  .hero,
  .panel {
    padding: 1rem;
    border-radius: var(--radius-md);
  }

  .hero h1 {
    max-width: unset;
    font-size: 1.7rem;
  }

  .site-nav__inner {
    padding: 0.6rem 0;
    flex-direction: row;
    align-items: center;
  }

  .site-nav__links {
    gap: 0.2rem;
  }

  .site-nav__links a {
    padding: 0.3rem 0.55rem;
    font-size: 0.82rem;
  }

  .pagination {
    justify-content: center;
  }

  .pagination__info {
    width: 100%;
    text-align: center;
  }
}