:root {
  --bg:        #fafaf9;
  --surface:   #ffffff;
  --border:    #e5e5e3;
  --border-focus: #a1a1aa;
  --text:      #1c1c1e;
  --muted:     #8e8e93;
  --muted2:    #b5b5bc;
  --accent:    #18181b;
  --link:      #2563eb;
  --danger:    #dc2626;
  --success:   #059669;
  --radius:    14px;
  --font:      "Inter", system-ui, -apple-system, sans-serif;
  --mono:      ui-monospace, "SF Mono", monospace;
}

/* ── Auth Overlay ───────────────────────────────────── */
.auth-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.auth-overlay.active {
  opacity: 1;
  visibility: visible;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  animation: fadeUp 0.4s ease;
}

.auth-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.auth-sub {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 2rem;
}

.input-group {
  margin-bottom: 1.25rem;
}

.input-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.input-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font);
  font-size: 0.95rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  outline: none;
  transition: border-color 0.15s;
}

.input-group input:focus {
  border-color: var(--accent);
}

.auth-toggle {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}

.text-btn {
  background: none;
  border: none;
  color: var(--link);
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  font-family: inherit;
  font-size: inherit;
}

.text-btn:hover {
  text-decoration: underline;
}

.google-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  height: 44px; /* Standard Google button height */
  padding: 0 16px;
  background: #ffffff;
  border: 1px solid #dadce0;
  border-radius: 4px; /* Google's preferred slightly rounded corner */
  color: #3c4043;
  font-family: 'Roboto', 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background-color .218s, border-color .218s, box-shadow .218s;
  box-shadow: 0 1px 1px 0 rgba(66,133,244,.15);
  cursor: pointer;
  outline: none;
}

.google-btn:hover {
  background-color: #f8f9fa;
  border-color: #d2d4d7;
  box-shadow: 0 1px 2px 0 rgba(66,133,244,.3), 0 1px 3px 1px rgba(66,133,244,.15);
}

.google-btn:active {
  background-color: #eeeeee;
  box-shadow: 0 1px 2px 0 rgba(66,133,244,.3);
}

.google-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.header-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
}

.user-email {
  color: var(--muted);
  font-weight: 500;
}

.ingest-status-section {
  margin-top: 2rem;
}

.ingest-tasks-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.ingest-task-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.task-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.task-query {
  font-weight: 600;
  font-size: 0.9rem;
}

.task-status-pill {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.status-running   { background: #e0f2fe; color: #0369a1; }
.status-completed { background: #dcfce7; color: #166534; }
.status-failed    { background: #fef2f2; color: #dc2626; }

.task-progress {
  font-size: 0.8rem;
  color: var(--muted);
}

.task-meta {
  font-size: 0.75rem;
  color: var(--muted2);
  display: flex;
  gap: 1rem;
}

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

html { -webkit-font-smoothing: antialiased; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 15px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* ── Page shell ─────────────────────────────────────── */
.page {
  max-width: 680px;
  margin: 0 auto;
  padding: 2.25rem 1.5rem 4rem;
}

/* ── Header ─────────────────────────────────────────── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text);
  text-decoration: none;
}

.logo-mark {
  color: var(--text);
  flex-shrink: 0;
}

.brand-name {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.stats {
  font-size: 0.75rem;
  color: var(--muted);
  font-family: var(--mono);
  text-align: right;
}

/* ── Tab Navigation ─────────────────────────────────── */
.tab-nav {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 2rem;
  padding: 0.25rem;
  background: #f1f1ef;
  border-radius: 10px;
}

.tab-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.18s ease;
  position: relative;
}

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

.tab-btn.active {
  color: var(--text);
  background: var(--surface);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(0, 0, 0, 0.04);
  font-weight: 600;
}

.tab-btn svg {
  flex-shrink: 0;
  opacity: 0.6;
}

.tab-btn.active svg {
  opacity: 1;
}

.tab-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 0.65rem;
  font-weight: 700;
  color: #fff;
  background: var(--success);
  border-radius: 9px;
  line-height: 1;
}

/* ── Sub-Navigation (Knowledge) ──────────────────────── */
.sub-nav {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
  padding: 0.2rem;
  background: #f1f1ef;
  border-radius: 10px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.sub-tab-btn {
  padding: 0.4rem 1.25rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--muted);
  background: transparent;
  border: none;
  border-radius: 7px;
  cursor: pointer;
  transition: all 0.15s ease;
}

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

.sub-tab-btn.active {
  color: var(--text);
  background: var(--surface);
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
  font-weight: 600;
}

/* ── Tab Panels ─────────────────────────────────────── */
.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeUp 0.25s ease;
}

.sub-tab-panel {
  display: none;
}

.sub-tab-panel.active {
  display: block;
  animation: fadeUp 0.25s ease;
}

/* ── Hero ────────────────────────────────────────────── */
.hero {
  margin-bottom: 2rem;
}

.hero-title {
  margin: 0 0 0.4rem;
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.2;
  color: var(--text);
}

.hero-sub {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

/* ── Search card ─────────────────────────────────────── */
.search-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.search-card:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(24, 24, 27, 0.06);
}

textarea {
  display: block;
  width: 100%;
  padding: 1rem 1.1rem 0.6rem;
  font-family: var(--font);
  font-size: 0.975rem;
  color: var(--text);
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  overflow: hidden;
  line-height: 1.6;
  min-height: 52px;
}

textarea::placeholder { color: var(--muted2); }

.search-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.75rem 0.55rem 1.1rem;
  border-top: 1px solid var(--border);
  gap: 0.75rem;
}

.k-label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
  user-select: none;
}

.k-label input {
  width: 3.5rem;
  padding: 0.3rem 0.45rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  text-align: center;
  outline: none;
  transition: border-color 0.12s;
}

.k-label input:focus { border-color: var(--border-focus); }

/* ── Ask button ──────────────────────────────────────── */
/* ── Action Buttons (Unified) ───────────────────────── */
.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.48rem 1.25rem;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 9px;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.action-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.action-btn:active {
  transform: translateY(0) scale(0.98);
}

.action-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* spinner inside button */
.btn-spinner {
  width: 14px;
  height: 14px;
  animation: spin 0.75s linear infinite;
  flex-shrink: 0;
}

/* ── Disclaimer ──────────────────────────────────────── */
.disclaimer {
  margin: 0.75rem 0 0;
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.5;
}

.disclaimer a {
  color: var(--link);
  text-decoration: none;
}

.disclaimer a:hover { text-decoration: underline; }

/* ── Loading state ───────────────────────────────────── */
.loading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 2.5rem;
  color: var(--muted);
  font-size: 0.875rem;
}

.spinner {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  animation: spin 0.9s linear infinite;
  color: var(--text);
}

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

/* ── Results ─────────────────────────────────────────── */
.results {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  animation: fadeUp 0.3s ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.result-block {
  min-width: 0;
}

.block-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.85rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.source-count {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--muted2);
  text-transform: none;
  letter-spacing: 0;
}

/* ── Answer ──────────────────────────────────────────── */
.answer {
  font-size: 0.975rem;
  line-height: 1.75;
  color: var(--text);
  white-space: pre-wrap;
}

/* ── Sources ─────────────────────────────────────────── */
.sources {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.source-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9rem 1rem;
  transition: border-color 0.12s ease;
  display: grid;
  grid-template-columns: 1.5rem 1fr;
  gap: 0 0.65rem;
}

.source-card:hover { border-color: var(--border-focus); }

.source-num {
  font-size: 0.7rem;
  font-family: var(--mono);
  color: var(--muted2);
  padding-top: 0.18rem;
  user-select: none;
}

.source-body {
  min-width: 0;
}

.source-card a.title {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--link);
  text-decoration: none;
  line-height: 1.4;
  margin-bottom: 0.3rem;
}

.source-card a.title:hover { text-decoration: underline; }

.source-meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  margin-bottom: 0.45rem;
}

.source-excerpt {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}

/* ── Error ───────────────────────────────────────────── */
.error {
  margin-top: 1.5rem;
  padding: 0.8rem 1rem;
  font-size: 0.875rem;
  color: var(--danger);
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 10px;
}

/* ── Footer ──────────────────────────────────────────── */
.footer {
  margin-top: 4rem;
  font-size: 0.75rem;
  color: var(--muted2);
}

.footer code {
  font-family: var(--mono);
  font-size: 0.72rem;
  background: #f1f1ef;
  padding: 0.15rem 0.4rem;
  border-radius: 5px;
}

/* ── Utility ─────────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Answer header (answer + confidence badge) ──────── */
.answer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0;
}

.answer-header .block-label {
  margin-bottom: 0.85rem;
}

/* ── Confidence Badge ───────────────────────────────── */
.confidence-badge {
  display: inline-block;
  padding: 0.22rem 0.65rem;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-radius: 20px;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── Intent Badge ───────────────────────────────────── */
.intent-badge {
  display: inline-block;
  padding: 0.18rem 0.55rem;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: 16px;
  text-transform: uppercase;
  margin-left: auto;
  flex-shrink: 0;
}

/* ── Chain-of-Thought Sections ──────────────────────── */
.cot-section {
  animation: fadeUp 0.3s ease;
}

.cot-details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.cot-details:hover {
  border-color: var(--border-focus);
}

.cot-details[open] {
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.cot-summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  user-select: none;
  list-style: none;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
  transition: background 0.12s ease;
}

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

.cot-summary::before {
  content: "▸";
  font-size: 0.7rem;
  color: var(--muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.cot-details[open] .cot-summary::before {
  transform: rotate(90deg);
}

.cot-summary:hover {
  background: rgba(0,0,0,0.015);
}

.cot-icon {
  font-size: 0.95rem;
  flex-shrink: 0;
}

.cot-title {
  font-weight: 600;
  letter-spacing: -0.01em;
}

.cot-content {
  padding: 0 1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-top: 1px solid var(--border);
  padding-top: 0.85rem;
}

/* ── CoT Fields ─────────────────────────────────────── */
.cot-field {
  min-width: 0;
}

.cot-field-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.cot-field-value {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text);
  margin: 0;
}

/* ── Tags ────────────────────────────────────────────── */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 500;
  color: #374151;
  background: #f3f4f6;
  border-radius: 6px;
  border: 1px solid #e5e7eb;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.15s ease;
}

.tag:hover {
  background: #e5e7eb;
  border-color: var(--border-focus);
  color: var(--text);
}

.discover-history-item {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
  transition: all 0.15s ease;
}

.discover-history-item:hover {
  background: #f9fafb;
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.mesh-tag {
  background: #eff6ff;
  color: #1e40af;
  border-color: #bfdbfe;
}

/* ── PubMed Query Code Block ────────────────────────── */
.pubmed-query-code {
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.55;
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.7rem 0.85rem;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
  color: var(--text);
  overflow-x: auto;
}

/* ── Embedding Queries ──────────────────────────────── */
.embedding-queries {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.embedding-queries li {
  font-size: 0.82rem;
  color: var(--text);
  padding: 0.4rem 0.65rem;
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: 7px;
  line-height: 1.45;
}

.embedding-queries li::before {
  content: "→ ";
  color: var(--muted);
}

/* ── Evidence Table ─────────────────────────────────── */
.evidence-table-wrap {
  overflow-x: auto;
}

.evidence-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}

.evidence-table thead th {
  text-align: left;
  font-size: 0.67rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.evidence-table tbody td {
  padding: 0.5rem;
  border-bottom: 1px solid #f3f4f6;
  vertical-align: top;
  color: var(--text);
  line-height: 1.45;
}

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

.ev-pmid {
  font-family: var(--mono);
  font-size: 0.72rem;
  white-space: nowrap;
  color: var(--muted);
}

.rel-badge {
  display: inline-block;
  padding: 0.13rem 0.45rem;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: 10px;
  text-transform: uppercase;
  white-space: nowrap;
}

.rel-high   { background: #dcfce7; color: #166534; }
.rel-medium { background: #fef9c3; color: #854d0e; }
.rel-low    { background: #fee2e2; color: #991b1b; }

/* ── Gaps List ──────────────────────────────────────── */
.gaps-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.gaps-list li {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.5;
  padding-left: 1rem;
  position: relative;
}

.gaps-list li::before {
  content: "⚠";
  position: absolute;
  left: 0;
  font-size: 0.7rem;
}

/* ═══════════════════════════════════════════════════════ */
/* SUBSCRIPTION STYLES                                     */
/* ═══════════════════════════════════════════════════════ */

/* ── Add Subscription Form ──────────────────────────── */
.sub-form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.sub-form-card:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(24, 24, 27, 0.06);
}

.sub-form-row {
  padding: 0;
}

.sub-query-input {
  display: block;
  width: 100%;
  padding: 1rem 1.1rem;
  font-family: var(--font);
  font-size: 0.975rem;
  color: var(--text);
  background: transparent;
  border: none;
  outline: none;
}

.sub-query-input::placeholder {
  color: var(--muted2);
}

.sub-form-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.75rem 0.55rem 1.1rem;
  border-top: 1px solid var(--border);
  gap: 0.75rem;
}

/* Using .action-btn for primary actions */

/* ── Subscription List ──────────────────────────────── */
.sub-list {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

/* ── Subscription Card ──────────────────────────────── */
.sub-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  overflow: hidden;
}

.sub-card:hover {
  border-color: var(--border-focus);
}

.sub-card.sub-running {
  border-color: var(--success);
  box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.12);
}

.sub-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
}

.sub-card-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
  flex: 1;
}

.sub-query {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sub-status {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: 10px;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}

.sub-status-active {
  background: #dcfce7;
  color: #166534;
}

.sub-status-paused {
  background: #f3f4f6;
  color: #6b7280;
}

.sub-card-actions {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-shrink: 0;
}

.sub-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  transition: all 0.12s ease;
}

.sub-action-btn:hover {
  border-color: var(--border-focus);
  color: var(--text);
  background: #f9fafb;
}

.sub-action-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.sub-run-btn:hover:not(:disabled) {
  border-color: var(--success);
  color: var(--success);
  background: #ecfdf5;
}

.sub-delete-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: #fef2f2;
}

.sub-card-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  background: #fafaf9;
}

.sub-stat {
  padding: 0.6rem 1rem;
  text-align: center;
  border-right: 1px solid var(--border);
}

.sub-stat:last-child {
  border-right: none;
}

.sub-stat-label {
  display: block;
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.15rem;
}

.sub-stat-value {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  font-family: var(--mono);
}

/* ── Empty State ────────────────────────────────────── */
.sub-empty {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--muted);
}

.sub-empty svg {
  color: var(--muted2);
  margin-bottom: 0.75rem;
  opacity: 0.5;
}

.sub-empty p {
  margin: 0 0 0.3rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
}

.sub-empty span {
  font-size: 0.82rem;
  color: var(--muted);
}

/* ── Running animation ──────────────────────────────── */
.sub-running .sub-run-btn {
  animation: pulse-green 1.5s ease-in-out infinite;
}

@keyframes pulse-green {
  0%, 100% { background: #ecfdf5; border-color: var(--success); color: var(--success); }
  50% { background: #dcfce7; }
}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 500px) {
  .sub-card-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .sub-stat:nth-child(2) {
    border-right: none;
  }

  .sub-stat:nth-child(3),
  .sub-stat:nth-child(4) {
    border-top: 1px solid var(--border);
  }
}
/* ── Discovery Actions ──────────────────────────────── */
.discovery-actions {
  margin-top: 1.5rem;
}

.action-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.action-header h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0;
}

.section-divider {
  display: flex;
  align-items: center;
  margin: 2.5rem 0 1.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted2);
}

.section-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
  margin-left: 1rem;
}

/* ── Discovery List (simplified source cards) ──────── */
.discover-list .source-card {
  padding: 0.75rem 1rem;
  grid-template-columns: 1.25rem 1fr;
}

.discover-list .title {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.15rem;
}

.discover-list .source-meta {
  font-size: 0.7rem;
  margin-bottom: 0;
}

/* ── User Tour (Guided Onboarding) ──────────────────── */
.tour-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.tour-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.tour-highlight {
  position: absolute;
  z-index: 1001;
  border-radius: 12px;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.4), 0 0 15px rgba(255, 255, 255, 0.5);
  pointer-events: none;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.tour-tooltip {
  position: fixed;
  z-index: 1002;
  width: 320px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 20px 40px rgba(0,0,0,0.15), 0 0 0 1px rgba(0,0,0,0.05);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}

.tour-tooltip.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.tour-step-counter {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.tour-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.tour-content {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--muted);
  margin-bottom: 1.25rem;
}

.tour-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tour-btn {
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tour-btn-next {
  background: var(--text);
  color: #fff;
  border: none;
}

.tour-btn-next:hover {
  background: #000;
  transform: translateY(-1px);
}

.tour-btn-skip {
  background: transparent;
  color: var(--muted);
  border: none;
  padding: 0.5rem 0;
}

.tour-btn-skip:hover {
  color: var(--text);
}

.pulse-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  border: 2px solid var(--accent);
  border-radius: inherit;
  animation: tourPulse 2s infinite;
  pointer-events: none;
}

@keyframes tourPulse {
  0% { transform: translate(-50%, -50%) scale(0.95); opacity: 0.7; }
  70% { transform: translate(-50%, -50%) scale(1.1); opacity: 0; }
  100% { transform: translate(-50%, -50%) scale(0.95); opacity: 0; }
}