/* ============================================
   GOXEM Academic Pulse — Signal Card Styles
   ============================================ */

/* --- Signal Card (in feed) --- */
.signal-card {
  border: 1px solid #e5e7eb;
  border-left: 3px solid #6e4f9e;
  background: linear-gradient(135deg, #fefefe 0%, #f8f7ff 100%);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.15s;
}
.signal-card:hover {
  box-shadow: 0 4px 16px rgba(110, 79, 158, 0.1);
  transform: translateY(-1px);
}

/* --- Signal Card Header --- */
.signal-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px 0;
}
.signal-card-header .feed-post-avatar img {
  border: 2px solid #e8e0f5;
}
.signal-card-header .feed-post-meta {
  flex: 1;
  min-width: 0;
}
.signal-card-header .feed-post-author {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  font-size: 0.9rem;
  color: #1a1a2e;
}
.signal-card-header .feed-post-date {
  font-size: 0.78rem;
  color: #6b7280;
}
.signal-verified-badge {
  display: inline-flex;
  align-items: center;
}
.signal-verified-badge svg {
  width: 14px;
  height: 14px;
}

/* --- Signal Card Menu --- */
.signal-card-menu {
  position: relative;
}
.signal-menu-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  z-index: 100;
  min-width: 200px;
  padding: 4px 0;
}
.signal-menu-dropdown.show {
  display: block;
}

/* --- Signal Card Content --- */
.signal-card-content {
  padding: 12px 16px;
}

/* --- Badges Row --- */
.signal-badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}
.signal-type-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--signal-color, #6b7280);
  background: color-mix(in srgb, var(--signal-color, #6b7280) 10%, white);
  border: 1px solid color-mix(in srgb, var(--signal-color, #6b7280) 25%, white);
  letter-spacing: 0.02em;
}
.signal-deadline-chip {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 500;
}
.signal-deadline-normal {
  color: #d97706;
  background: #fef3c7;
  border: 1px solid #fde68a;
}
.signal-deadline-urgent {
  color: #dc2626;
  background: #fef2f2;
  border: 1px solid #fecaca;
  animation: pulse-urgent 2s ease-in-out infinite;
}
@keyframes pulse-urgent {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* --- Title --- */
.signal-title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 0 0 6px;
  color: #1a1a2e;
}
.signal-title a {
  color: inherit;
  text-decoration: none;
}
.signal-title a:hover {
  color: #6e4f9e;
  text-decoration: underline;
}

/* --- Summary --- */
.signal-summary-text {
  font-size: 0.87rem;
  line-height: 1.6;
  color: #4a4a68;
  margin: 0 0 8px;
}

/* --- Authors --- */
.signal-authors-line {
  font-size: 0.82rem;
  color: #6b7280;
  margin-bottom: 8px;
}

/* --- Tags --- */
.signal-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 8px;
}
.signal-tag-chip {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
  color: #6e4f9e;
  background: #f3f0fa;
  border: 1px solid #e8e0f5;
}

/* --- Relevance explanation --- */
.signal-relevance {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  border-radius: 8px;
  font-size: 0.78rem;
  color: #0369a1;
  margin-top: 4px;
}
.signal-relevance svg {
  flex-shrink: 0;
  color: #0284c7;
}

/* --- Signal Card Actions --- */
.signal-card-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 8px 12px;
  border-top: 1px solid #f3f4f6;
}
.signal-action {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  border: none;
  background: none;
  color: #6b7280;
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
  text-decoration: none;
  white-space: nowrap;
}
.signal-action:hover {
  background: #f3f4f6;
  color: #1a1a2e;
}
.signal-action.active {
  color: #6e4f9e;
}
.signal-action-read {
  color: #6e4f9e;
  font-weight: 600;
}
.signal-action-read:hover {
  background: #f3f0fa;
  color: #5a3d8e;
}

/* --- In-feed signal body (when rendered as forum post) --- */
.signal-card-body .signal-type-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.signal-card-body .signal-type-journal_update    { color: #3b82f6; background: #eff6ff; }
.signal-card-body .signal-type-conference_announcement { color: #8b5cf6; background: #f5f3ff; }
.signal-card-body .signal-type-call_for_papers   { color: #d97706; background: #fffbeb; }
.signal-card-body .signal-type-funding_opportunity { color: #059669; background: #ecfdf5; }
.signal-card-body .signal-type-tool_update       { color: #6366f1; background: #eef2ff; }
.signal-card-body .signal-type-research_news     { color: #0284c7; background: #f0f9ff; }
.signal-card-body .signal-type-education_news    { color: #db2777; background: #fdf2f8; }
.signal-card-body .signal-summary  { color: #374151; line-height: 1.65; }
.signal-card-body .signal-authors  { font-size: 0.85rem; color: #6b7280; margin-top: 8px; }
.signal-card-body .signal-deadline { font-size: 0.85rem; color: #dc2626; font-weight: 500; margin-top: 4px; }
.signal-card-body .signal-tags     { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 10px; }
.signal-card-body .signal-tag      { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 0.72rem; color: #6e4f9e; background: #f3f0fa; }
.signal-card-body .signal-footer   { margin-top: 12px; padding-top: 10px; border-top: 1px solid #f3f4f6; font-size: 0.82rem; }
.signal-card-body .signal-source   { color: #9ca3af; }
.signal-card-body .signal-read-more {
  color: #6e4f9e;
  font-weight: 600;
  text-decoration: none;
}
.signal-card-body .signal-read-more:hover {
  text-decoration: underline;
}

/* --- Pulse Sidebar Widget --- */
.pulse-sidebar-widget h3 {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: #1a1a2e;
  margin: 0 0 12px;
}
.pulse-sidebar-widget h3 svg {
  color: #f59e0b;
}
.pulse-sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pulse-sidebar-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px;
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s;
}
.pulse-sidebar-item:hover {
  background: #f8f7ff;
}
.pulse-sidebar-icon {
  font-size: 1.1rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}
.pulse-sidebar-info {
  flex: 1;
  min-width: 0;
}
.pulse-sidebar-title {
  font-size: 0.8rem;
  font-weight: 500;
  color: #1a1a2e;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.pulse-sidebar-meta {
  font-size: 0.7rem;
  color: #9ca3af;
  margin-top: 2px;
}

/* --- Share menu --- */
.signal-share-menu {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  padding: 6px;
  z-index: 100;
  min-width: 180px;
  margin-bottom: 8px;
}
.signal-share-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 0.82rem;
  color: #374151;
  background: none;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  width: 100%;
  text-decoration: none;
  font-family: inherit;
  transition: background 0.15s;
}
.signal-share-option:hover { background: #f3f4f6; }

/* --- Sidebar suggest button --- */
.pulse-sidebar-footer {
  padding: 8px 12px 12px;
  border-top: 1px solid #f0f0f0;
}
.pulse-suggest-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 8px 12px;
  font-size: 0.78rem;
  font-weight: 500;
  color: #6366f1;
  background: #f0f0ff;
  border: 1px dashed #c7c7f7;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, color 0.15s;
}
.pulse-suggest-btn:hover { background: #e0e0ff; color: #4f46e5; }

/* --- Suggest source modal --- */
.signal-suggest-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.2s;
}
.signal-suggest-modal {
  background: #fff;
  border-radius: 14px;
  width: 90%;
  max-width: 480px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  overflow: hidden;
}
.signal-suggest-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid #e5e7eb;
}
.signal-suggest-header h3 { font-size: 1rem; font-weight: 700; color: #1a1a2e; margin: 0; }
.signal-suggest-close {
  background: none; border: none; font-size: 1.5rem; color: #999;
  cursor: pointer; padding: 0 4px; line-height: 1;
}
.signal-suggest-body { padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.signal-suggest-field label {
  display: block; font-size: 0.82rem; font-weight: 600; color: #374151; margin-bottom: 4px;
}
.signal-suggest-input {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 0.85rem;
  font-family: inherit;
  transition: border-color 0.15s;
  box-sizing: border-box;
}
.signal-suggest-input:focus { outline: none; border-color: #6366f1; box-shadow: 0 0 0 3px rgba(99,102,241,0.1); }
textarea.signal-suggest-input { resize: vertical; min-height: 60px; }
select.signal-suggest-input { appearance: auto; }
.signal-suggest-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 20px;
  border-top: 1px solid #e5e7eb;
  background: #f9fafb;
}
.signal-suggest-cancel {
  padding: 8px 16px; border: 1px solid #d1d5db; border-radius: 8px;
  background: #fff; color: #374151; font-size: 0.85rem; cursor: pointer; font-family: inherit;
}
.signal-suggest-submit {
  padding: 8px 20px; border: none; border-radius: 8px;
  background: #6366f1; color: #fff; font-size: 0.85rem; font-weight: 600;
  cursor: pointer; font-family: inherit; transition: background 0.15s;
}
.signal-suggest-submit:hover { background: #4f46e5; }
.signal-suggest-submit:disabled { opacity: 0.6; cursor: not-allowed; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* --- Responsive --- */
@media (max-width: 768px) {
  .signal-card-content { padding: 10px 14px; }
  .signal-card-actions { flex-wrap: wrap; }
  .signal-title { font-size: 0.92rem; }
  .signal-summary-text { font-size: 0.83rem; }
  .signal-action { padding: 5px 8px; font-size: 0.73rem; }
  .signal-suggest-modal { width: 95%; max-width: none; }
  .signal-share-menu { min-width: 160px; }
}