/* ============================================
   Brays Island Biodiversity Atlas
   Design system matched to braysstewardship.org —
   Frank Ruhl Libre serif display + Open Sans body,
   deep forest-green accent (#0e5924), charcoal text,
   flat rectangular UI with signature offset accent bar.
   ============================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

:root, [data-theme="light"] {
  /* Surfaces — clean white, matching stewardship site */
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-surface-2: #ffffff;
  --color-surface-offset: #f8f8f8;
  --color-divider: #e2e2e2;
  --color-border: #cccccc;

  /* Text */
  --color-text: #333333;
  --color-text-muted: #666666;
  --color-text-faint: #999999;
  --color-text-inverse: #ffffff;

  /* Primary accent — deep forest green (site-wide link/accent color) */
  --color-primary: #0e5924;
  --color-primary-hover: #0a4019;
  --color-primary-active: #072d12;
  --color-primary-highlight: #e6efe8;

  /* Secondary accent — dark moss (logo color) */
  --color-moss: #403f2d;
  --color-moss-highlight: #ecebe4;

  /* Kingdom tag colors */
  --tag-animalia: #8a5a2a;
  --tag-animalia-bg: #f1e6d8;
  --tag-plantae: #0e5924;
  --tag-plantae-bg: #e6efe8;
  --tag-fungi: #6d4a6b;
  --tag-fungi-bg: #ece2eb;
  --tag-protozoa: #2c6e6a;
  --tag-protozoa-bg: #e2edec;

  /* SWAP conservation-priority colors */
  --swap-highest: #7a1f1f;
  --swap-highest-bg: #f6e2e2;
  --swap-high: #9a4a12;
  --swap-high-bg: #f7e7d8;
  --swap-moderate: #8a7a12;
  --swap-moderate-bg: #f5f1d8;
  --swap-dd: #555555;
  --swap-dd-bg: #ececec;

  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 2px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);

  --font-display: 'Frank Ruhl Libre', Georgia, 'Times New Roman', serif;
  --font-body: 'Open Sans', Arial, sans-serif;
}

[data-theme="dark"] {
  --color-bg: #1a1a1a;
  --color-surface: #212121;
  --color-surface-2: #262626;
  --color-surface-offset: #262626;
  --color-divider: #3a3a3a;
  --color-border: #454545;

  --color-text: #ececec;
  --color-text-muted: #b3b3b3;
  --color-text-faint: #838383;
  --color-text-inverse: #1a1a1a;

  --color-primary: #4caf6e;
  --color-primary-hover: #6cc38c;
  --color-primary-active: #8ed6ac;
  --color-primary-highlight: #1d2f22;

  --color-moss: #a9a884;
  --color-moss-highlight: #2a2a22;

  --tag-animalia: #d9a35f;
  --tag-animalia-bg: #362a18;
  --tag-plantae: #7fce97;
  --tag-plantae-bg: #1c2e20;
  --tag-fungi: #cf9dcb;
  --tag-fungi-bg: #302331;
  --tag-protozoa: #7fc7c1;
  --tag-protozoa-bg: #1b2c2b;

  --swap-highest: #e28a8a;
  --swap-highest-bg: #3a2020;
  --swap-high: #e0a76e;
  --swap-high-bg: #3a2c18;
  --swap-moderate: #d8cd82;
  --swap-moderate-bg: #34301a;
  --swap-dd: #b3b3b3;
  --swap-dd-bg: #2c2c2c;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45);
}

:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.83rem + 0.2vw, 0.9375rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.4vw, 1.375rem);
  --text-xl: clamp(1.375rem, 1.2rem + 0.9vw, 1.875rem);
  --text-2xl: clamp(1.75rem, 1.3rem + 2vw, 2.75rem);
  --text-hero: clamp(2.5rem, 1.6rem + 4vw, 5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --transition-interactive: 160ms cubic-bezier(0.16, 1, 0.3, 1);
  --content-wide: 1240px;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  background-color: var(--color-bg);
  transition: background-color var(--transition-interactive), color var(--transition-interactive);
}

img, svg { display: block; max-width: 100%; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }

a { color: var(--color-primary); text-decoration-color: color-mix(in srgb, var(--color-primary) 40%, transparent); }
a:visited { color: var(--color-primary); }
a:hover { color: var(--color-primary-hover); }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

/* ============ Header ============ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 0 rgba(0, 0, 0, 0.1);
}

.header-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand { display: flex; align-items: center; gap: var(--space-3); }
.logo-mark {
  flex-shrink: 0;
  width: 40px;
  height: auto;
  filter: none;
}
[data-theme="dark"] .logo-mark { filter: brightness(0) invert(1) opacity(0.9); }

.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.brand-subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: border-color var(--transition-interactive), color var(--transition-interactive), background var(--transition-interactive);
}
.theme-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); background: var(--color-primary-highlight); }

/* ============ Hero / KPI ============ */

.hero {
  padding: var(--space-12) var(--space-6) var(--space-8);
  background:
    radial-gradient(ellipse 1000px 320px at 12% -10%, var(--color-surface-offset), transparent 60%),
    var(--color-bg);
}

.hero-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  text-align: left;
}

.hero-count {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.count-number {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-hero);
  color: var(--color-text);
  line-height: 1;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums lining-nums;
}

.count-label {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.hero-desc {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-base);
  max-width: 62ch;
}

.hero-stats {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.stat-chip {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  min-width: 96px;
  box-shadow: inset -4px 0 0 0 var(--color-primary);
}

.stat-chip .stat-value {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  font-variant-numeric: tabular-nums lining-nums;
  color: var(--color-text);
}

.stat-chip .stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
}

/* ============ Filters ============ */

.filters {
  padding: var(--space-6);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface-offset);
}

.filters-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
}

.filters-row {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.search-field {
  position: relative;
  flex: 1 1 280px;
  min-width: 220px;
}

.search-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-faint);
  pointer-events: none;
}

.search-field input {
  width: 100%;
  padding: var(--space-3) var(--space-3) var(--space-3) var(--space-10);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.search-field input:focus {
  border-color: var(--color-primary);
}

/* Signature stewardship-site button: flat rectangle + offset green accent bar */
.reset-btn, .export-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
  border: 2px solid var(--color-primary);
  background: transparent;
  color: var(--color-text-muted);
  box-shadow: -8px 0 0 0 var(--color-primary);
  margin-left: 8px;
  transition: color var(--transition-interactive), background var(--transition-interactive), border-color var(--transition-interactive);
}

.reset-btn:hover, .export-btn:hover {
  color: var(--color-primary);
}

.export-btn {
  color: var(--color-text-inverse);
  background: #000000;
  border-color: #000000;
  box-shadow: -8px 0 0 0 var(--color-primary);
}
[data-theme="dark"] .export-btn { background: var(--color-text); color: var(--color-bg); border-color: var(--color-text); }
.export-btn:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: var(--color-text-inverse); }

.filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-3);
}

.filter-field { display: flex; flex-direction: column; gap: var(--space-1); min-width: 0; }

.filter-field label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.filter-field select {
  width: 100%;
  min-width: 0;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  font-size: var(--text-sm);
  color: var(--color-text);
  appearance: none;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23666666' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 28px;
}

.filter-field select:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.filter-field select:focus {
  border-color: var(--color-primary);
}

.filter-field.active select {
  border-color: var(--color-primary);
  background-color: var(--color-primary-highlight);
  font-weight: 600;
}

/* ---- Multi-select filter (Kingdom, Phylum, Class, Order, Family, Genus, Species) ---- */
.filter-field.multiselect { position: relative; }

.multiselect-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  width: 100%;
  min-width: 0;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  font-family: inherit;
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
  text-align: left;
}

.multiselect-trigger:disabled { opacity: 0.45; cursor: not-allowed; }
.multiselect-trigger:focus-visible { outline: none; border-color: var(--color-primary); }

.multiselect-trigger-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.multiselect-trigger svg { flex-shrink: 0; transition: transform var(--transition-interactive); }
.filter-field.multiselect.open .multiselect-trigger svg { transform: rotate(180deg); }

.filter-field.multiselect.active .multiselect-trigger {
  border-color: var(--color-primary);
  background-color: var(--color-primary-highlight);
  font-weight: 600;
}

.multiselect-panel {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 220px;
  width: max-content;
  max-width: min(320px, calc(100vw - 32px));
  padding: var(--space-2);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.16);
}

.multiselect-panel[hidden] { display: none; }

.multiselect-search {
  width: 100%;
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  font-family: inherit;
  font-size: var(--text-sm);
  color: var(--color-text);
}
.multiselect-search:focus { outline: none; border-color: var(--color-primary); }

.multiselect-actions { display: flex; gap: var(--space-2); }

.multiselect-action {
  flex: 1;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  font-family: inherit;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
}
.multiselect-action:hover { color: var(--color-primary); border-color: var(--color-primary); }

.multiselect-options {
  max-height: 220px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.multiselect-option {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
}
.multiselect-option:hover { background: var(--color-surface-2); }
.multiselect-option input {
  accent-color: var(--color-primary);
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  margin-top: 3px;
}
.multiselect-option span { overflow-wrap: anywhere; }

.multiselect-empty {
  padding: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: center;
}

.active-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.chip button {
  display: flex;
  color: inherit;
  opacity: 0.7;
}
.chip button:hover { opacity: 1; }

/* ============ SWAP filter toggle ============ */

.swap-toggle-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.swap-toggle-field .toggle-label-row {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.swap-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
}

.swap-toggle input { accent-color: var(--color-primary); width: 15px; height: 15px; }

.swap-toggle.active {
  border-color: var(--swap-high);
  background: var(--swap-high-bg);
  color: var(--swap-high);
  font-weight: 700;
}

.common-groups-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.common-groups-label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.common-groups-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ---- Scientific Filters (expandable) ---- */
.scientific-filters {
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  margin-bottom: var(--space-4);
}

.scientific-filters-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
  list-style: none;
}

.scientific-filters-summary::-webkit-details-marker { display: none; }

.scientific-filters-summary:hover { color: var(--color-primary); }

.scientific-filters-chevron { transition: transform var(--transition-interactive); flex-shrink: 0; }

.scientific-filters[open] .scientific-filters-chevron { transform: rotate(180deg); }

.scientific-filters .filter-grid {
  padding: 0 var(--space-4) var(--space-4);
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-4);
}

.group-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
}

.group-toggle input { accent-color: var(--color-primary); width: 15px; height: 15px; }

.group-toggle.active {
  border-color: var(--color-primary);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  font-weight: 700;
}

/* ============ Results ============ */

.results {
  padding: var(--space-8) var(--space-6) var(--space-16);
}

.results-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
}

.results-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.results-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
}

.results-count {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums lining-nums;
}

.table-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  overflow: auto;
  max-height: 70vh;
  box-shadow: var(--shadow-sm);
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: var(--text-sm);
}

thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  text-align: left;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-offset);
  border-bottom: 2px solid var(--color-primary);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  font-weight: 700;
  white-space: nowrap;
}

tbody td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-divider);
  vertical-align: top;
  color: var(--color-text);
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--color-surface-offset); }

td.col-common { font-weight: 700; display: flex; align-items: center; gap: 6px; }
td.col-scientific { font-style: italic; color: var(--color-text-muted); }

tr.species-row { cursor: pointer; }
tr.species-row:focus-visible { outline: 2px solid var(--color-primary); outline-offset: -2px; }

.info-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface-offset);
  color: var(--color-primary);
  cursor: pointer;
  padding: 0;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.info-btn .info-icon {
  display: block;
  font-family: Georgia, 'Times New Roman', serif;
  font-style: italic;
  font-weight: 700;
  font-size: 12px;
  line-height: 1;
}

.info-btn:hover,
.info-btn:focus-visible {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
  transform: scale(1.08);
}

.info-btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.kingdom-tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 700;
}

.swap-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 7px;
  border-radius: var(--radius-pill);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  flex-shrink: 0;
}
.swap-badge svg { flex-shrink: 0; }
.swap-badge.tier-highest { color: var(--swap-highest); background: var(--swap-highest-bg); }
.swap-badge.tier-high { color: var(--swap-high); background: var(--swap-high-bg); }
.swap-badge.tier-moderate { color: var(--swap-moderate); background: var(--swap-moderate-bg); }
.swap-badge.tier-data-deficient, .swap-badge.tier-other { color: var(--swap-dd); background: var(--swap-dd-bg); }

.voucher-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
  color: var(--color-primary);
  border-bottom: 1px solid transparent;
}
.voucher-link:hover, .voucher-link:focus-visible { border-bottom-color: currentColor; }
.voucher-link svg { flex-shrink: 0; }
.voucher-note {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.empty-state {
  padding: var(--space-16) var(--space-6);
  text-align: center;
  color: var(--color-text-muted);
}

/* ============ SWAP legend note ============ */

.swap-legend {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-text-muted);
}

.swap-legend strong { color: var(--color-text); font-weight: 700; }

/* ============ Footer ============ */

.site-footer {
  padding: var(--space-10) var(--space-6) var(--space-12);
  text-align: center;
  color: #b8b8b0;
  font-size: var(--text-xs);
  background: #222222;
}

.site-footer p { max-width: 640px; margin: 0 auto; line-height: 1.7; }

/* Footer background is always dark regardless of site theme, so use a fixed
   bright green (not the theme-dependent --color-primary) for reliable contrast. */
.site-footer a { color: #6bcf8e; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* ============ Responsive ============ */

@media (max-width: 640px) {
  .header-inner { padding: var(--space-3) var(--space-4); }
  .hero { padding: var(--space-8) var(--space-4) var(--space-6); }
  .filters { padding: var(--space-4); }
  .results { padding: var(--space-6) var(--space-4) var(--space-12); }
  .filter-grid { grid-template-columns: repeat(2, 1fr); }
  .filters-row { flex-direction: column; }
  .common-groups-row { flex-direction: column; align-items: flex-start; gap: var(--space-2); }
  .search-field { flex: 1 1 auto; min-width: 0; }
  .reset-btn, .export-btn { width: 100%; justify-content: center; margin-left: 0; box-shadow: inset -8px 0 0 0 var(--color-primary); }
}

/* ============ Species detail popup ============ */

body.modal-open { overflow: hidden; }

.species-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  animation: modal-fade-in 0.15s ease;
}

.species-modal-overlay[hidden] { display: none; }

@keyframes modal-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.species-modal {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 440px;
  max-height: 85vh;
  overflow-y: auto;
  animation: modal-pop-in 0.18s ease;
}

@keyframes modal-pop-in {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.species-modal-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: 2;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.species-modal-close:hover { background: var(--color-surface-offset); color: var(--color-text); }
.species-modal-close:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 1px; }

.species-modal-body { padding: var(--space-6) var(--space-6) var(--space-5); }

.modal-header { padding-right: var(--space-6); margin-bottom: var(--space-4); }

.modal-header h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.25;
}

.modal-sciname {
  font-style: italic;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: 2px;
}

.modal-swap { margin-top: var(--space-2); }

.modal-photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--color-surface-offset);
  border: 1px solid var(--color-divider);
  margin-bottom: var(--space-4);
}

.modal-summary {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.modal-summary-empty { color: var(--color-text-faint); font-style: italic; }

.modal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.modal-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  text-decoration: none;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: background 0.15s ease, color 0.15s ease;
}

.modal-link:hover { background: var(--color-primary); color: var(--color-text-inverse); }

.modal-loading {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  padding: var(--space-4) 0;
}

.spinner {
  width: 15px;
  height: 15px;
  border: 2px solid var(--color-divider);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 480px) {
  .species-modal { max-width: 100%; }
  .species-modal-body { padding: var(--space-5) var(--space-4) var(--space-4); }
}