/* ========================================
   geneRelate — Global Styles
   EB Garamond · Dark/Light · Minimal
   ======================================== */

/* ---- CSS Custom Properties ---- */
:root {
  --font-main: 'EB Garamond', Georgia, 'Times New Roman', serif;
  --radius: 10px;
  --radius-sm: 6px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
}

/* Light theme — monochrome */
[data-theme="light"] {
  --bg: #f8f8f8;
  --bg-panel: #ffffff;
  --bg-hover: #f0f0f0;
  --bg-input: #f4f4f4;
  --border: #e0e0e0;
  --border-focus: #555555;
  --text: #1a1a1a;
  --text-secondary: #555555;
  --text-muted: #999999;
  --accent: #333333;
  --accent-hover: #1a1a1a;
  --accent-subtle: rgba(0, 0, 0, 0.04);
  --badge-bg: #eeeeee;
  --badge-text: #555555;
  --score-high: #333333;
  --score-med: #666666;
  --score-low: #999999;
  --tag-go-bp: #f0f0f0;
  --tag-go-mf: #e8e8e8;
  --tag-go-cc: #f0f0f0;
  --tag-kegg: #e8e8e8;
  --tag-go-bp-text: #333333;
  --tag-go-mf-text: #444444;
  --tag-go-cc-text: #333333;
  --tag-kegg-text: #444444;
  --tag-nog: #e8f0e8;
  --tag-nog-text: #2a5a2a;
  --tag-alias: #f0ece8;
  --tag-alias-text: #5a4a2a;
  --modal-overlay: rgba(0, 0, 0, 0.25);
}

/* Dark theme — monochrome */
[data-theme="dark"] {
  --bg: #111111;
  --bg-panel: #1a1a1a;
  --bg-hover: #252525;
  --bg-input: #202020;
  --border: #333333;
  --border-focus: #aaaaaa;
  --text: #e0e0e0;
  --text-secondary: #aaaaaa;
  --text-muted: #666666;
  --accent: #cccccc;
  --accent-hover: #e0e0e0;
  --accent-subtle: rgba(255, 255, 255, 0.05);
  --badge-bg: #252525;
  --badge-text: #aaaaaa;
  --score-high: #d0d0d0;
  --score-med: #999999;
  --score-low: #666666;
  --tag-go-bp: rgba(255, 255, 255, 0.06);
  --tag-go-mf: rgba(255, 255, 255, 0.08);
  --tag-go-cc: rgba(255, 255, 255, 0.06);
  --tag-kegg: rgba(255, 255, 255, 0.08);
  --tag-go-bp-text: #bbbbbb;
  --tag-go-mf-text: #aaaaaa;
  --tag-go-cc-text: #bbbbbb;
  --tag-kegg-text: #aaaaaa;
  --tag-nog: rgba(100, 180, 100, 0.12);
  --tag-nog-text: #8abb8a;
  --tag-alias: rgba(180, 150, 100, 0.12);
  --tag-alias-text: #bba87a;
  --modal-overlay: rgba(0, 0, 0, 0.55);
}

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

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background var(--transition), color var(--transition);
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ================= HEADER ================= */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-group {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.logo {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.logo-accent {
  color: var(--accent);
}

.logo-subtitle {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ================= BUTTONS ================= */
.btn {
  font-family: var(--font-main);
  font-size: 0.92rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 0.7rem 1.5rem;
  font-weight: 600;
  font-size: 1rem;
  width: 100%;
  justify-content: center;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.btn-icon {
  background: transparent;
  color: var(--text-secondary);
  padding: 0.45rem;
  border-radius: 50%;
}

.btn-icon:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.btn-sm {
  font-size: 0.8rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

/* Theme toggle icons */
[data-theme="dark"] .icon-sun {
  display: block;
}

[data-theme="dark"] .icon-moon {
  display: none;
}

[data-theme="light"] .icon-sun {
  display: none;
}

[data-theme="light"] .icon-moon {
  display: block;
}

/* ================= MODAL ================= */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}

.modal[hidden] {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: var(--modal-overlay);
}

.modal-content {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s ease;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 1.2rem;
  font-weight: 600;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.modal-close:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.modal-body {
  padding: 1.5rem;
}

.db-card {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 0.8rem;
}

.db-card:last-child {
  margin-bottom: 0;
}

.db-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.4rem;
}

.db-card-name {
  font-weight: 600;
  font-size: 1.05rem;
}

.db-card-version {
  font-size: 0.82rem;
  background: var(--accent-subtle);
  color: var(--accent);
  padding: 0.15rem 0.6rem;
  border-radius: 12px;
  font-weight: 500;
}

.db-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
}

.db-card-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

.db-card-url {
  font-size: 0.8rem;
  color: var(--accent);
  text-decoration: none;
}

.db-card-url:hover {
  text-decoration: underline;
}

/* ================= LAYOUT ================= */
.main {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 1.5rem;
  width: 100%;
}

@media (max-width: 900px) {
  .main {
    grid-template-columns: 1fr;
  }
}

/* ================= PANELS ================= */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
}

.panel-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
}

.panel-title svg {
  color: var(--accent);
}

.results-panel {
  min-height: 500px;
}

/* ================= FORM ELEMENTS ================= */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-weight: 500;
  font-size: 0.88rem;
  margin-bottom: 0.35rem;
  color: var(--text-secondary);
}

.hint {
  font-weight: 400;
  font-style: italic;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.form-select,
.form-textarea {
  width: 100%;
  font-family: var(--font-main);
  font-size: 0.92rem;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.8rem;
  transition: border var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-select:focus,
.form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px var(--accent-subtle);
}

.form-textarea {
  resize: vertical;
}

.form-select option {
  background: var(--bg-panel);
  color: var(--text);
}

/* Checkbox list */
.checkbox-list {
  max-height: 180px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.4rem;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: background var(--transition);
}

.checkbox-item:hover {
  background: var(--bg-hover);
}

.checkbox-item input[type="checkbox"] {
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
}

.checkbox-controls {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.4rem;
}

/* Range slider */
.range-group {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.form-range {
  flex: 1;
  accent-color: var(--accent);
  height: 4px;
}

.range-value {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--accent);
  min-width: 2.5rem;
  text-align: center;
}

/* ================= PLACEHOLDER ================= */
.placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  text-align: center;
  color: var(--text-muted);
  gap: 1rem;
}

.placeholder p {
  max-width: 300px;
  font-size: 0.95rem;
  line-height: 1.5;
}

/* ================= LOADING ================= */
.loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-panel);
  border-radius: var(--radius);
  z-index: 10;
  gap: 1rem;
}

[hidden] {
  display: none !important;
}

.loading[hidden] {
  display: none;
}

.loading p {
  color: var(--text-muted);
  font-style: italic;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ================= TABS ================= */
.results-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.2rem;
  overflow-x: auto;
}

.tab {
  font-family: var(--font-main);
  font-size: 0.82rem;
  font-weight: 500;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  padding: 0.5rem 0.7rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
}

.tab:hover {
  color: var(--text-secondary);
}

.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-content {
  display: none;
  animation: fadeIn 0.2s ease;
}

.tab-content.active {
  display: block;
}

/* ================= RESULT TABLES ================= */
.result-section {
  margin-bottom: 1.5rem;
}

.result-section-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.result-gene-badge {
  display: inline-block;
  background: var(--accent-subtle);
  color: var(--accent);
  padding: 0.1rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.85rem;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  background: var(--bg-panel);
  /* Ensure background behind scroll */
}

/* Ensure table container scrolls horizontally on small screens */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  /* Optional: confine scrolling visually */
  border-radius: var(--radius-sm);
}

.result-table th {
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  /* Prevent wrapping (e.g., P-VALUE) */
}

.result-table td {
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: top;
}

.result-table tr:last-child td {
  border-bottom: none;
}

.result-table tr:hover td {
  background: var(--bg-hover);
}

/* Score badge */
.score {
  font-weight: 600;
  font-size: 0.82rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}

.score-high {
  color: var(--score-high);
  background: rgba(46, 125, 50, 0.08);
}

.score-med {
  color: var(--score-med);
  background: rgba(184, 134, 11, 0.08);
}

.score-low {
  color: var(--score-low);
}

/* Tags */
.tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
  margin: 0.1rem 0.15rem;
  font-weight: 500;
  white-space: nowrap;
}

.tag-bp {
  background: var(--tag-go-bp);
  color: var(--tag-go-bp-text);
}

.tag-mf {
  background: var(--tag-go-mf);
  color: var(--tag-go-mf-text);
}

.tag-cc {
  background: var(--tag-go-cc);
  color: var(--tag-go-cc-text);
}

.tag-kegg {
  background: var(--tag-kegg);
  color: var(--tag-kegg-text);
}

.tag-nog {
  background: var(--tag-nog);
  color: var(--tag-nog-text);
}

.tag-alias {
  background: var(--tag-alias);
  color: var(--tag-alias-text);
}

.alias-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
  word-break: break-all;
}

.no-data {
  text-align: center;
  color: var(--text-muted);
  font-style: italic;
  padding: 2rem;
}

/* Gene not found row */
.gene-not-found {
  color: var(--text-muted);
  font-style: italic;
  padding: 0.5rem 0;
}

/* ================= FOOTER ================= */
.footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

.footer a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.footer a:hover {
  color: var(--text);
  border-bottom-color: var(--accent);
}

/* ================= ENRICHMENT UI ================= */
.enrichment-stats {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.8rem;
  padding: 0.6rem 0.8rem;
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.download-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0;
  margin-bottom: 0.8rem;
  flex-wrap: wrap;
}

.download-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.download-sep {
  color: var(--border);
  font-size: 0.8rem;
  margin: 0 0.2rem;
}

.download-btn {
  font-family: var(--font-main);
  font-size: 0.78rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.download-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.download-btn.active,
.plot-toggle.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.plot-container {
  margin-bottom: 1.2rem;
  overflow-x: auto;
}

.plot-container svg {
  display: block;
  max-width: 100%;
  height: auto;
}

.not-found-summary {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
  padding: 0.6rem 0;
  border-top: 1px solid var(--border);
  margin-top: 0.8rem;
}

.auto-detect-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 0.35rem 0.6rem;
  margin-top: 0.3rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.auto-detect-hint:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.auto-detect-hint em {
  font-style: italic;
}

/* ================= GENE NAVIGATION ================= */
.gene-nav {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
  padding: 0.45rem 0.7rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  flex-wrap: wrap;
}

/* Pill mode (few genes) */
.gene-nav-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  flex: 1;
  min-width: 0;
}

.gene-pill {
  font-family: var(--font-main);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.gene-pill:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: var(--text-muted);
}

.gene-pill.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

/* Dropdown mode (many genes) */
.gene-nav-compact {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.gene-nav-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}

.gene-nav-select {
  font-family: var(--font-main);
  font-size: 0.82rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  color: var(--text);
  outline: none;
  max-width: 200px;
  cursor: pointer;
}

.gene-nav-select:focus {
  border-color: var(--border-focus);
}

.gene-nav-select option {
  background: var(--bg-panel);
  color: var(--text);
}

.gene-nav-arrow {
  font-family: var(--font-main);
  font-size: 1.1rem;
  line-height: 1;
  padding: 0.1rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.gene-nav-arrow:hover {
  background: var(--bg-hover);
  color: var(--text);
}

/* Search input (shared) */
.gene-filter-input {
  font-family: var(--font-main);
  font-size: 0.8rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  color: var(--text);
  outline: none;
  width: 150px;
  margin-left: auto;
  transition: border var(--transition), box-shadow var(--transition);
}

.gene-filter-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px var(--accent-subtle);
}

.gene-filter-input::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

/* ================= PHYLOGENY ================= */
.phylo-tree-container {
  overflow-x: auto;
  margin-bottom: 1rem;
}

.phylo-tree-container svg {
  display: block;
  max-width: 100%;
  height: auto;
}

.phylo-legend {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.tag-phylo {
  background: var(--accent-subtle);
  color: var(--accent);
}

.phylo-large-tree-notice {
  padding: 1.5rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
}

.phylo-large-tree-notice a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.phylo-large-tree-notice a:hover {
  border-bottom-color: var(--accent);
}

/* ================= ANIMATIONS ================= */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* ================= ENRICHMENT CONTROLS ================= */
.enrichment-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
  padding: 0.5rem;
  background: var(--bg-panel);
  border-radius: 4px;
  border: 1px solid var(--border);
}

.control-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.control-group label {
  margin: 0;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Utilities */
.mt-4 {
  margin-top: 1.5rem;
}

/* PPI Legend */
.ppi-legend {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-left: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.ppi-legend-item {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.ppi-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.ppi-dot.query {
  background-color: #c92a2a;
}

.ppi-dot.hub {
  background-color: #1864ab;
}

.ppi-dot.interactor {
  background-color: #868e96;
}

[data-theme="dark"] .ppi-dot.query {
  background-color: #ff8787;
}

[data-theme="dark"] .ppi-dot.hub {
  background-color: #4dabf7;
}

[data-theme="dark"] .ppi-dot.interactor {
  background-color: #adb5bd;
}

/* Sortable Tables */
th.sortable {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 1.2rem;
  /* space for icon */
}

th.sortable:hover {
  background-color: var(--bg-hover);
  color: var(--text);
}

th.sortable::after {
  content: '↕';
  position: absolute;
  right: 0.4rem;
  opacity: 0.3;
  font-size: 0.8rem;
}

th.sortable.asc::after {
  content: '↑';
  opacity: 1;
  color: var(--accent);
}

th.sortable.desc::after {
  content: '↓';
  opacity: 1;
  color: var(--accent);
}

/* ================= MODAL TABS ================= */
.large-modal {
  max-width: 800px !important;
  width: 90% !important;
}

.modal-tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}

.modal-tab {
  padding: 0.5rem 1rem;
  border: none;
  background: none;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.modal-tab:hover {
  color: var(--text);
  background: var(--bg-hover);
}

.modal-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.modal-tab-content {
  display: none;
}

.modal-tab-content.active {
  display: block;
  animation: fadeIn 0.2s ease-in-out;
}

.modal-tab-content h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3rem;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

/* ---- Gene Tooltip ---- */
.gene-tooltip {
  position: fixed;
  z-index: 10000;
  max-width: 400px;
  min-width: 260px;
  padding: 0.75rem 1rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  font-family: var(--font-main);
  font-size: 0.85rem;
  color: var(--text);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease;
  line-height: 1.45;
}

.gene-tooltip.visible {
  opacity: 1;
  pointer-events: auto;
}

.gene-tooltip-header {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border);
}

.gene-tooltip-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
}

.gene-tooltip-pid {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: monospace;
}

.gene-tooltip-size {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: auto;
}

.gene-tooltip-annotation {
  margin: 0.35rem 0;
  color: var(--text-secondary);
  font-style: italic;
}

.gene-tooltip-section {
  margin-top: 0.4rem;
}

.gene-tooltip-section-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}

.gene-tooltip-terms {
  list-style: none;
  padding: 0;
  margin: 0;
}

.gene-tooltip-terms li {
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 0.1rem 0;
}

.gene-tooltip-terms a {
  color: var(--text-muted);
  font-family: monospace;
  font-size: 0.7rem;
  text-decoration: none;
}

.gene-tooltip-terms a:hover {
  text-decoration: underline;
}

.gene-tooltip-refs {
  margin-top: 0.5rem;
  padding-top: 0.35rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 0.75rem;
}

.gene-tooltip-refs a {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
}

.gene-tooltip-refs a:hover {
  color: var(--text);
  text-decoration: underline;
}

/* Hoverable gene elements */
[data-pid] {
  cursor: help;
}

[data-pid]:hover {
  text-decoration: underline;
  text-decoration-style: dotted;
}