:root {
  --navy: #1a1a2e;
  --accent: #0066cc;
  --bg: #ffffff;
  --surface: #f8f8fc;
  --text: #1a1a2e;
  --muted: #5a5a6e;
  --border: #e2e2ea;
  --green-bg: #e3f6e8;
  --green-fg: #1b7a37;
  --amber-bg: #fdf3d8;
  --amber-fg: #9a6b00;
  --highly-cited-bg: #fff0e0;
  --highly-cited-fg: #b45309;
  --cache-bg: #e8f4fd;
  --cache-fg: #1565a8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --navy: #0d0d1a;
    --accent: #4d9fff;
    --bg: #12121f;
    --surface: #1a1a2e;
    --text: #e8e8f0;
    --muted: #8888aa;
    --border: #2e2e4a;
    --green-bg: #0f2e18;
    --green-fg: #4ade80;
    --amber-bg: #2a1f00;
    --amber-fg: #f0b429;
    --highly-cited-bg: #2e1800;
    --highly-cited-fg: #f6a23e;
    --cache-bg: #0d1e30;
    --cache-fg: #60b0f0;
  }
}

[data-theme="dark"] {
  --navy: #0d0d1a;
  --accent: #4d9fff;
  --bg: #12121f;
  --surface: #1a1a2e;
  --text: #e8e8f0;
  --muted: #8888aa;
  --border: #2e2e4a;
  --green-bg: #0f2e18;
  --green-fg: #4ade80;
  --amber-bg: #2a1f00;
  --amber-fg: #f0b429;
  --highly-cited-bg: #2e1800;
  --highly-cited-fg: #f6a23e;
  --cache-bg: #0d1e30;
  --cache-fg: #60b0f0;
}

[data-theme="light"] {
  --navy: #1a1a2e;
  --accent: #0066cc;
  --bg: #ffffff;
  --surface: #f8f8fc;
  --text: #1a1a2e;
  --muted: #5a5a6e;
  --border: #e2e2ea;
  --green-bg: #e3f6e8;
  --green-fg: #1b7a37;
  --amber-bg: #fdf3d8;
  --amber-fg: #9a6b00;
  --highly-cited-bg: #fff0e0;
  --highly-cited-fg: #b45309;
  --cache-bg: #e8f4fd;
  --cache-fg: #1565a8;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

/* Header */
.site-header {
  background: var(--navy);
  color: #fff;
  padding: 1.75rem 1rem;
}
.header-inner {
  max-width: 860px;
  margin: 0 auto;
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.logo {
  margin: 0;
  font-size: 2rem;
  letter-spacing: -0.5px;
}
.tagline {
  margin: 0.25rem 0 0;
  color: #b9b9d0;
  font-size: 0.95rem;
}
.usage-line {
  margin: 0.2rem 0 0;
  color: #8888aa;
  font-size: 0.8rem;
}

/* Header auth controls */
.header-auth {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}
.signin-btn {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.25);
  padding: 0.4rem 0.9rem;
  font-size: 0.88rem;
  border-radius: 6px;
}
.signin-btn:hover {
  background: rgba(255,255,255,0.22);
}
.user-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.user-badge {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.82rem;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.signout-btn {
  background: transparent;
  color: #b9b9d0;
  border: none;
  padding: 0.25rem 0.5rem;
  font-size: 0.82rem;
  border-radius: 4px;
}
.signout-btn:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

/* Theme toggle */
.theme-toggle-btn {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.25);
  padding: 0.3rem 0.55rem;
  font-size: 1rem;
  border-radius: 6px;
  line-height: 1;
}
.theme-toggle-btn:hover {
  background: rgba(255,255,255,0.22);
}

/* Auth modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}
.modal-overlay[hidden] {
  display: none;
}
.modal-box {
  background: var(--bg);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 380px;
  position: relative;
  box-shadow: 0 8px 32px rgba(0,0,0,0.22);
}
.modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: none;
  color: var(--muted);
  font-size: 1.4rem;
  line-height: 1;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}
.modal-close:hover {
  background: var(--border);
  color: var(--text);
}
.modal-title {
  margin: 0 0 1rem;
  font-size: 1.2rem;
  color: var(--text);
}

/* Tab switcher */
.tab-switcher {
  display: flex;
  gap: 0;
  margin-bottom: 1.25rem;
  border-bottom: 2px solid var(--border);
}
.tab-btn {
  background: none;
  color: var(--muted);
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: 0.5rem 1.1rem;
  margin-bottom: -2px;
  font-size: 0.95rem;
  font-weight: 600;
}
.tab-btn:hover {
  background: none;
  color: var(--text);
}
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: none;
}

/* Auth form */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.auth-form label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 0.25rem;
}
.auth-form input {
  font: inherit;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 100%;
}
.auth-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,102,204,0.12);
}
.auth-btn {
  margin-top: 0.75rem;
  width: 100%;
  padding: 0.65rem;
  font-size: 0.95rem;
}
.auth-error {
  background: #fdecec;
  border: 1px solid #f5b5b5;
  color: #a12626;
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
}
[data-theme="dark"] .auth-error {
  background: rgba(200, 60, 60, 0.15);
  border-color: rgba(200, 60, 60, 0.35);
  color: #ff9999;
}
@media (prefers-color-scheme: dark) {
  .auth-error { background: rgba(200,60,60,0.15); border-color: rgba(200,60,60,0.35); color: #ff9999; }
}
.auth-error[hidden] {
  display: none;
}
.auth-hint {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.82rem;
}

/* Layout */
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

/* Mode selector */
.mode-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.mode-card {
  /* Override the global button styling. */
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 0.3rem;
  padding: 0.9rem 1rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.mode-card:hover {
  background: var(--surface);
}
.mode-card.active {
  border: 2px solid var(--accent);
  background: var(--bg);
  box-shadow: 0 1px 3px rgba(0, 102, 204, 0.12);
}
.mode-card.disabled,
.mode-card:disabled {
  background: var(--surface);
  color: var(--muted);
  cursor: not-allowed;
  opacity: 0.7;
}
.mode-card.disabled:hover {
  background: var(--surface);
  border-color: var(--border);
}
.mode-icon {
  font-size: 1.4rem;
  line-height: 1;
}
.mode-title {
  font-weight: 700;
  font-size: 1.05rem;
}
.mode-desc {
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 400;
}
.mode-badge {
  margin-top: 0.3rem;
  display: inline-block;
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
}
.mode-badge.free {
  background: var(--green-bg);
  color: var(--green-fg);
}
.mode-badge.soon {
  background: var(--border);
  color: var(--muted);
}

/* Hint text below the textarea */
.hint {
  margin: 0.4rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}

/* Search form */
.search-form textarea {
  width: 100%;
  /* Tall enough that the placeholder/example hints are fully visible without
     the user having to drag the resize handle. */
  min-height: 120px;
  padding: 0.75rem;
  font: inherit;
  border: 1px solid var(--border);
  border-radius: 8px;
  resize: vertical;
}
/* The Cite textarea takes longer pasted text — give it more room. */
#cite-text {
  min-height: 160px;
}
.search-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.15);
}
.form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.75rem;
  gap: 1rem;
}
.form-row label {
  color: var(--muted);
  font-size: 0.9rem;
}
select {
  font: inherit;
  padding: 0.3rem 0.4rem;
  border-radius: 6px;
  border: 1px solid var(--border);
}
button {
  font: inherit;
  cursor: pointer;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1.2rem;
  transition: background 0.15s ease;
}
button:hover {
  background: #0052a3;
}
button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Status / spinner */
.status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 1.5rem 0;
  color: var(--muted);
}
.spinner {
  width: 18px;
  height: 18px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Error */
.error {
  margin: 1.5rem 0;
  padding: 0.9rem 1rem;
  background: #fdecec;
  border: 1px solid #f5b5b5;
  color: #a12626;
  border-radius: 8px;
}
.retry-btn {
  margin-top: 0.6rem;
  background: #a12626;
  color: #fff;
  padding: 0.35rem 0.9rem;
  font-size: 0.85rem;
}
.retry-btn:hover {
  background: #842020;
}
[data-theme="dark"] .error {
  background: rgba(200, 60, 60, 0.15);
  border-color: rgba(200, 60, 60, 0.35);
  color: #ff9999;
}
@media (prefers-color-scheme: dark) {
  .error { background: rgba(200,60,60,0.15); border-color: rgba(200,60,60,0.35); color: #ff9999; }
}

/* Partial-failure warning banner */
.warning {
  margin: 1rem 0;
  padding: 0.6rem 0.9rem;
  background: var(--amber-bg);
  border: 1px solid #f0d28a;
  color: var(--amber-fg);
  border-radius: 8px;
  font-size: 0.85rem;
}

/* Export controls */
.export-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.export-label {
  font-weight: 600;
  color: var(--text);
}
.export-opt {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--muted);
  cursor: pointer;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 1.5rem 0 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}
#export-btn {
  background: var(--navy);
}
#export-btn:hover {
  background: #2b2b48;
}

/* Results */
.results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 0.5rem;
}
.card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  background: var(--bg);
  box-shadow: 0 1px 3px rgba(26, 26, 46, 0.06);
}
.card-title {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
  line-height: 1.35;
}
.result-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-right: 0.5rem;
  border-radius: 50%;
  background: var(--border);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  vertical-align: middle;
}
.card-title a {
  color: var(--accent);
  text-decoration: none;
}
.card-title a:hover {
  text-decoration: underline;
}
.card-authors {
  color: var(--text);
  font-size: 0.92rem;
  margin: 0 0 0.25rem;
}
.card-meta {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 0.6rem;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.15rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}
.badge.verified {
  background: var(--green-bg);
  color: var(--green-fg);
}
.badge.unverified {
  background: var(--amber-bg);
  color: var(--amber-fg);
}

/* Abstract */
.abstract-toggle {
  background: none;
  color: var(--accent);
  padding: 0;
  font-size: 0.85rem;
}
.abstract-toggle:hover {
  background: none;
  text-decoration: underline;
}
.abstract {
  margin: 0.5rem 0 0;
  color: var(--text);
  font-size: 0.9rem;
  white-space: pre-wrap;
}
.abstract[hidden] {
  display: none;
}

/* Card actions */
.card-actions {
  margin-top: 0.7rem;
  display: flex;
  gap: 0.6rem;
  align-items: center;
}
.copy-btn {
  background: var(--surface);
  color: var(--accent);
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
}
.copy-btn:hover {
  background: var(--border);
}
.copy-btn.copied {
  background: var(--green-bg);
  color: var(--green-fg);
}

.warning-inline {
  color: var(--amber-fg);
}

/* Source breakdown line */
.source-stats {
  margin: 1.25rem 0 0.25rem;
  font-size: 0.85rem;
  color: var(--muted);
}

/* "Showing X–Y of N" */
#results-meta {
  font-size: 0.9rem;
  color: var(--muted);
}

/* Pagination */
.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: center;
  margin: 1.5rem 0 0.5rem;
}
.page-btn {
  background: var(--bg);
  color: var(--accent);
  border: 1px solid var(--border);
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
  min-width: 36px;
}
.page-btn:hover:not(:disabled) {
  background: var(--surface);
}
.page-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.page-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.page-gap {
  align-self: center;
  color: var(--muted);
  padding: 0 0.15rem;
}

/* ---- Cite mode ---- */
.cite-summary {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 600;
}
.cite-results {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1rem;
}
.claim-block {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  background: var(--bg);
}
.claim-sentence {
  background: #fff8d6;
  border-left: 4px solid #e6c200;
  padding: 0.6rem 0.8rem;
  border-radius: 4px;
  font-size: 0.95rem;
  margin-bottom: 0.8rem;
}
[data-theme="dark"] .claim-sentence {
  background: rgba(230, 194, 0, 0.12);
  border-left-color: #c9a800;
}
@media (prefers-color-scheme: dark) {
  .claim-sentence { background: rgba(230,194,0,0.12); border-left-color: #c9a800; }
}
.claim-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0.4rem 0 0.6rem;
  font-size: 0.8rem;
}
.claim-type-badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: var(--border);
  color: var(--muted);
  font-weight: 600;
  text-transform: capitalize;
}
.claim-query-hint {
  color: var(--muted);
  font-style: italic;
}
.claim-sources {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.claim-none {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0;
}
.cite-source {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  background: var(--surface);
}
.cite-source.accepted {
  background: var(--green-bg);
  border-color: var(--green-fg);
}
.cite-source-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}
.cite-source-title a {
  color: var(--accent);
  text-decoration: none;
}
.cite-source-title a:hover {
  text-decoration: underline;
}
.cite-source-meta {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.use-btn {
  background: var(--surface);
  color: var(--accent);
  padding: 0.3rem 0.8rem;
  font-size: 0.82rem;
}
.use-btn:hover {
  background: var(--border);
}
.cite-source.accepted .use-btn {
  background: var(--green-fg);
  color: #fff;
}
#cite-export {
  margin-top: 1.5rem;
  background: var(--navy);
}
#cite-export:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Highly-cited badge */
.badge-highly-cited {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--highly-cited-bg);
  color: var(--highly-cited-fg);
  margin-left: 0.35rem;
  vertical-align: middle;
}

/* Cache-hit badge */
.cache-badge {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--cache-bg);
  color: var(--cache-fg);
  margin-left: 0.35rem;
  vertical-align: middle;
}

/* Domain field row (Cite mode) */
.field-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.6rem;
}
.field-row label {
  font-size: 0.88rem;
  color: var(--muted);
  white-space: nowrap;
}
.field-row input[type="text"] {
  font: inherit;
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  flex: 1;
  max-width: 300px;
}
.field-row input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.12);
}
.hint-inline {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--muted);
}

/* Pro badge for gated mode cards */
.mode-badge.pro {
  background: #ebe5ff;
  color: #6d28d9;
}
[data-theme="dark"] .mode-badge.pro {
  background: rgba(109, 40, 217, 0.25);
  color: #c4b5fd;
}
@media (prefers-color-scheme: dark) {
  .mode-badge.pro { background: rgba(109,40,217,0.25); color: #c4b5fd; }
}

/* Auth modal gate note */
.auth-gate-note {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  color: var(--text);
  margin-bottom: 0.75rem;
}
.auth-gate-note[hidden] {
  display: none;
}

/* Google OAuth */
.oauth-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 16px 0;
  color: var(--muted);
  font-size: 0.85rem;
}
.oauth-divider::before,
.oauth-divider::after {
  content: "";
  flex: 1;
  border-top: 1px solid var(--border);
}
.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px 16px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.15s ease;
}
.btn-google:hover {
  background: var(--surface);
}

/* Upgrade modal */
.upgrade-modal-box {
  background: var(--bg);
  border-radius: 12px;
  padding: 40px;
  width: 100%;
  max-width: 380px;
  text-align: center;
  position: relative;
  box-shadow: 0 8px 32px rgba(0,0,0,0.22);
}
.upgrade-modal-box .modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
}
.upgrade-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  line-height: 1;
}
.upgrade-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  margin: 1rem 0;
}
.upgrade-price span {
  font-size: 1rem;
  color: var(--muted);
  font-weight: 400;
}
.btn-primary {
  display: block;
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  margin-top: 1rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}
.btn-primary:hover {
  background: #0052a3;
}
.btn-ghost {
  display: block;
  width: 100%;
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  margin-top: 0.75rem;
  padding: 0.4rem;
  font-size: 0.9rem;
  border-radius: 6px;
}
.btn-ghost:hover {
  color: var(--text);
  background: transparent;
}

/* Global form element theming */
input:not([type="radio"]):not([type="checkbox"]),
select,
textarea {
  background: var(--bg);
  color: var(--text);
}

/* Draft mode output */
.draft-output {
  margin-top: 1.5rem;
}
.draft-output-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}
.draft-output-label {
  font-weight: 600;
  color: var(--text);
  font-size: 0.9rem;
  flex: 1;
}
.draft-pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
  margin: 0;
  max-height: 400px;
  overflow-y: auto;
}

/* Responsive */
@media (max-width: 600px) {
  .mode-selector {
    grid-template-columns: 1fr;
  }
  .form-row {
    flex-direction: column;
    align-items: stretch;
  }
  .form-row button {
    width: 100%;
  }
}

/* Save to library button */
.save-btn {
  background: #fff8e8;
  color: #8a5c00;
  border: 1px solid #e8d89a;
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  border-radius: 6px;
  cursor: pointer;
}
.save-btn:hover {
  background: #fef3c7;
}
.save-btn.saved {
  background: var(--green-bg);
  color: var(--green-fg);
  border-color: var(--green-fg);
}

/* Library delete button */
.delete-btn {
  background: transparent;
  color: #c0392b;
  border: 1px solid #e0b0b0;
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  border-radius: 6px;
  cursor: pointer;
}
.delete-btn:hover {
  background: #fdf0ef;
}

/* Manage subscription button */
.manage-sub-btn {
  background: transparent;
  color: #b9b9d0;
  border: none;
  padding: 0.25rem 0.5rem;
  font-size: 0.82rem;
  border-radius: 4px;
  cursor: pointer;
}
.manage-sub-btn:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

/* Upgrade success banner */
.upgraded-banner {
  background: #1b7a37;
  color: #fff;
  text-align: center;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  position: sticky;
  top: 0;
  z-index: 200;
}

/* Upgrade modal features list */
.upgrade-features {
  text-align: left;
  margin: 0.75rem 0 0 0;
  padding-left: 1.4rem;
  font-size: 0.95rem;
  color: var(--text);
}
.upgrade-features li {
  margin: 0.35rem 0;
}

/* Upgrade modal compare link */
.upgrade-compare-link {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.upgrade-compare-link:hover {
  color: var(--accent);
}

/* Footer links */
.site-footer a {
  color: inherit;
  opacity: 0.8;
}
.site-footer a:hover {
  opacity: 1;
}

/* ---- Draft interactive claims panel ---- */
.draft-claims-panel {
  margin-top: 2rem;
  border-top: 2px solid var(--border);
  padding-top: 1.5rem;
}

.draft-claim-row {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  background: var(--bg);
  margin-bottom: 0.9rem;
  transition: opacity 0.15s;
}

.draft-claim-row.excluded {
  opacity: 0.45;
}

.draft-claim-header {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}

.draft-claim-checkbox {
  margin-top: 0.3rem;
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--accent);
}

.draft-claim-sentence {
  background: #fff8d6;
  border-left: 4px solid #e6c200;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  font-size: 0.92rem;
  flex: 1;
  line-height: 1.45;
}

[data-theme="dark"] .draft-claim-sentence {
  background: rgba(230, 194, 0, 0.12);
  border-left-color: #c9a800;
}

@media (prefers-color-scheme: dark) {
  .draft-claim-sentence { background: rgba(230,194,0,0.12); border-left-color: #c9a800; }
}

.draft-sources {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.draft-source-option {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.65rem 0.9rem;
  background: var(--surface);
  transition: border-color 0.12s, background 0.12s;
  cursor: pointer;
}

.draft-source-option:hover {
  border-color: var(--accent);
}

.draft-source-option.selected {
  background: var(--green-bg);
  border-color: var(--green-fg);
}

.draft-radio-label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  cursor: pointer;
  margin-bottom: 0.35rem;
}

.draft-radio-label input[type="radio"] {
  margin-top: 0.3rem;
  flex-shrink: 0;
  accent-color: var(--accent);
}

/* Source database badges (SS / OA) */
.source-db-badge {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-size: 0.68rem;
  font-weight: 700;
  margin-left: 0.5rem;
  vertical-align: middle;
  letter-spacing: 0.04em;
}

.source-db-semantic-scholar {
  background: #dbeafe;
  color: #1d4ed8;
}

.source-db-openalex {
  background: #dcfce7;
  color: #166534;
}

[data-theme="dark"] .source-db-semantic-scholar {
  background: rgba(30, 64, 175, 0.3);
  color: #93c5fd;
}

[data-theme="dark"] .source-db-openalex {
  background: rgba(22, 101, 52, 0.3);
  color: #86efac;
}

@media (prefers-color-scheme: dark) {
  .source-db-semantic-scholar { background: rgba(30,64,175,0.3); color: #93c5fd; }
  .source-db-openalex { background: rgba(22,101,52,0.3); color: #86efac; }
}

/* ---- Draft claim number label ---- */
.draft-claim-number {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

/* ---- Bib [N] number badge on source cards ---- */
.draft-bib-num {
  display: inline-flex;
  align-items: center;
  background: var(--accent);
  color: #fff;
  border-radius: 4px;
  padding: 0.05rem 0.4rem;
  font-size: 0.68rem;
  font-weight: 700;
  margin-left: 0.5rem;
  flex-shrink: 0;
  align-self: center;
  letter-spacing: 0.03em;
}

/* ---- Editable BibTeX key row ---- */
.draft-cite-key-row {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin: 0.3rem 0 0.35rem 1.6rem;
}

.draft-cite-key-label {
  font-size: 0.78rem;
  color: var(--muted);
  white-space: nowrap;
}

.draft-cite-key-input {
  font-size: 0.78rem;
  font-family: monospace;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15rem 0.4rem;
  background: var(--surface);
  color: var(--text);
  width: 13rem;
  min-width: 0;
}

.draft-cite-key-input:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}

/* Checkbox in source option (same alignment as old radio) */
.draft-radio-label input[type="checkbox"] {
  margin-top: 0.3rem;
  flex-shrink: 0;
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
  cursor: pointer;
}