/* Slide-out detail panel — right side overlay */
.detail-panel {
  position: fixed;
  top: 44px; /* below topbar */
  right: 0;
  bottom: 28px; /* above ticker */
  width: 440px;
  background: var(--s1);
  border-left: 1px solid rgba(255,255,255,0.06);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(.4,0,.2,1);
  z-index: 200;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-gutter: stable;
}
.detail-panel.open {
  transform: translateX(0);
}
.detail-panel-header {
  position: sticky;
  top: 0;
  background: var(--s1);
  padding: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 1;
}
.detail-panel-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--s2);
  border: none;
  color: var(--t2);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  font-size: 14px;
}
.detail-panel-close:hover {
  background: var(--s3);
  color: var(--t);
}
.detail-panel-body {
  padding: 20px 16px;
}
.detail-panel-title {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--t);
  margin-bottom: 12px;
  line-height: 1.4;
}
.detail-panel-tag {
  display: inline-block;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 3px 8px;
  font-family: var(--m);
  margin-bottom: 16px;
}
.detail-panel-summary {
  font-size: 11px;
  line-height: 1.85;
  color: var(--t2);
  margin-bottom: 20px;
}
.detail-panel-summary p {
  margin-bottom: 12px;
}
.detail-panel-summary strong {
  color: var(--t);
}
.detail-panel-summary h3 {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--o);
  font-family: var(--m);
  margin: 20px 0 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.detail-panel-summary h3:first-child {
  margin-top: 0;
}
.detail-panel-summary ul {
  list-style: none;
  padding: 0;
  margin: 8px 0;
}
.detail-panel-summary ul li {
  padding: 6px 0 6px 12px;
  position: relative;
  border-bottom: 1px solid rgba(255,255,255,0.02);
}
.detail-panel-summary ul li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--o);
  font-weight: 700;
}
.detail-panel-summary ul li strong {
  color: var(--l);
  font-family: var(--m);
  font-size: 10px;
}
.detail-panel-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--m);
  font-size: 9px;
  color: var(--t3);
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.04);
}
.detail-panel-vocab {
  margin-top: 20px;
  padding: 12px;
  background: var(--s2);
}
.detail-panel-vocab-title {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--o);
  font-family: var(--m);
  margin-bottom: 8px;
}
.detail-panel-vocab-item {
  font-size: 10px;
  color: var(--t2);
  padding: 4px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.detail-panel-vocab-item:last-child { border-bottom: none; }
.detail-panel-vocab-term {
  color: var(--l);
  font-weight: 600;
  font-family: var(--m);
}

/* Light theme overrides for detail panel */
[data-theme="light"] .detail-panel {
  background: #FFFFFF !important;
  border-left-color: rgba(0,0,0,0.08) !important;
}
[data-theme="light"] .detail-panel-header {
  background: #FFFFFF !important;
  border-bottom-color: rgba(0,0,0,0.06) !important;
}
[data-theme="light"] .detail-panel-close { background: #F0F0ED !important; }
[data-theme="light"] .detail-panel-close:hover { background: #E0E0DD !important; }
[data-theme="light"] .detail-panel-vocab { background: #F5F5F0 !important; }
[data-theme="light"] .detail-panel-summary h3 { color: var(--o) !important; border-bottom-color: rgba(0,0,0,0.06) !important; }
[data-theme="light"] .detail-panel-summary ul li { border-bottom-color: rgba(0,0,0,0.04) !important; }
[data-theme="light"] .detail-panel-summary ul li strong { color: #4A7A00 !important; }
[data-theme="light"] .detail-panel-meta a { color: var(--o) !important; }