/* ═══════════════════════════════════════════════════════════════
   OmicsLab — Dataset Browser styles
   ═══════════════════════════════════════════════════════════════ */

.ds-wrap {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 4rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

/* ─── Header ─── */
.ds-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(88,166,255,0.12);
  border: 1px solid rgba(88,166,255,0.3);
  color: #58a6ff;
  border-radius: 100px;
  padding: 3px 12px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 0.6rem;
}
.ds-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: #e6edf3;
  margin: 0 0 0.4rem;
}
.ds-subtitle {
  color: #8b949e;
  font-size: 0.9rem;
  max-width: 540px;
  line-height: 1.5;
}
.ds-stats-row {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
  flex-wrap: wrap;
}
.ds-stat {
  background: #0d1117;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 0.6rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 68px;
}
.ds-stat-n { font-size: 1.3rem; font-weight: 800; color: #58a6ff; }
.ds-stat-l { font-size: 0.65rem; color: #8b949e; text-transform: uppercase; letter-spacing: 0.05em; }

/* ─── Filter bar ─── */
.ds-filter-bar {
  background: #0d1117;
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 14px;
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.ds-search-wrap {
  position: relative;
}
.ds-search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: #6e7681;
  pointer-events: none;
}
.ds-search {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  color: #c9d1d9;
  font-size: 0.85rem;
  padding: 0.55rem 0.75rem 0.55rem 2.2rem;
  outline: none;
  transition: border-color 0.15s;
  box-sizing: border-box;
}
.ds-search:focus { border-color: #58a6ff; }
.ds-search::placeholder { color: #6e7681; }

.ds-filters-row {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.ds-filter-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.ds-filter-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: #6e7681;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  white-space: nowrap;
}
.ds-chips { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.ds-chip {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 100px;
  color: #8b949e;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.7rem;
  cursor: pointer;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
  white-space: nowrap;
}
.ds-chip:hover { background: rgba(255,255,255,0.1); color: #c9d1d9; }
.ds-chip.active {
  background: rgba(88,166,255,0.12);
  border-color: rgba(88,166,255,0.35);
  color: #58a6ff;
}

/* ─── Result bar ─── */
.ds-result-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.25rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.ds-count { font-size: 0.8rem; font-weight: 600; color: #e6edf3; }
.ds-note {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  color: #6e7681;
}

/* ─── Canvas: grid + detail ─── */
.ds-canvas {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  transition: grid-template-columns 0.3s;
}
.ds-canvas.split {
  grid-template-columns: 1fr 380px;
}
@media (max-width: 960px) {
  .ds-canvas.split { grid-template-columns: 1fr; }
}

/* ─── Dataset grid ─── */
.ds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.875rem;
  align-content: start;
}

/* ─── Dataset card ─── */
.ds-card {
  background: #0d1117;
  border: 1.5px solid rgba(255,255,255,0.07);
  border-left: 3px solid var(--ds-color, #58a6ff);
  border-radius: 12px;
  padding: 1rem;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.12s, box-shadow 0.15s;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ds-card:hover {
  border-color: rgba(255,255,255,0.18);
  border-left-color: var(--ds-color, #58a6ff);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}
.ds-card.selected {
  border-color: var(--ds-color, #58a6ff);
  box-shadow: 0 0 0 1px var(--ds-color, #58a6ff), 0 4px 20px rgba(88,166,255,0.12);
}
.ds-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.ds-card-accession {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: #58a6ff;
}
.ds-card-type {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 600;
  color: #8b949e;
  padding: 1px 6px;
  white-space: nowrap;
}
.ds-card-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: #e6edf3;
  line-height: 1.35;
}
.ds-card-organism {
  font-size: 0.72rem;
  color: #6e7681;
  font-style: italic;
}
.ds-card-meta-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 2px;
}
.ds-card-meta {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 0.68rem;
  color: #8b949e;
}
.ds-card-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.ds-tag {
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
  font-size: 0.63rem;
  color: #8b949e;
  padding: 1px 6px;
}

/* ─── Empty state ─── */
.ds-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 3rem 1rem;
}
.ds-empty-icon { display:flex;align-items:center;justify-content:center;margin-bottom:.5rem;color:var(--text-faint,#484f58); }
.ds-empty-msg  { color: #6e7681; font-size: 0.9rem; }
.ds-empty-reset {
  background: rgba(88,166,255,0.1);
  border: 1px solid rgba(88,166,255,0.25);
  border-radius: 8px;
  color: #58a6ff;
  font-size: 0.8rem;
  padding: 0.45rem 1rem;
  cursor: pointer;
}

/* ─── Detail panel ─── */
.ds-detail {
  position: sticky;
  top: 80px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: #30363d transparent;
}
.ds-detail::-webkit-scrollbar { width: 4px; }
.ds-detail::-webkit-scrollbar-track { background: transparent; }
.ds-detail::-webkit-scrollbar-thumb { background: #30363d; border-radius: 2px; }

.ds-detail-inner {
  background: #0d1117;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  padding: 1.25rem;
  position: relative;
}
.ds-detail-close {
  position: absolute;
  top: 0.875rem;
  right: 0.875rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  color: #6e7681;
  width: 28px;
  height: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.12s, color 0.12s;
}
.ds-detail-close:hover { background: rgba(255,255,255,0.12); color: #c9d1d9; }

.ds-det-source-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}
.ds-det-source {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: 4px;
  padding: 2px 7px;
}
.ds-det-source.ncbi { background: rgba(63,185,80,0.1); color: #3fb950; border: 1px solid rgba(63,185,80,0.25); }
.ds-det-source.ena  { background: rgba(88,166,255,0.1); color: #58a6ff; border: 1px solid rgba(88,166,255,0.25); }
.ds-det-source.gisaid { background: rgba(249,115,22,0.1); color: #f97316; border: 1px solid rgba(249,115,22,0.25); }
.ds-det-acc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: #58a6ff;
  font-weight: 600;
}
.ds-det-year { font-size: 0.72rem; color: #6e7681; margin-left: auto; }

.ds-det-title {
  font-size: 1rem;
  font-weight: 800;
  color: #e6edf3;
  line-height: 1.35;
  margin: 0 0 0.3rem;
}
.ds-det-organism {
  font-size: 0.78rem;
  color: #6e7681;
  font-style: italic;
  margin-bottom: 0.75rem;
}
.ds-det-badges {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 0.875rem;
}
.ds-det-badge {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  color: #8b949e;
  padding: 2px 10px;
}
.ds-det-abstract {
  font-size: 0.8rem;
  color: #8b949e;
  line-height: 1.6;
  margin: 0 0 1rem;
}

.ds-det-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 0.875rem;
}
.ds-det-cell {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  padding: 0.5rem 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.ds-det-cell-label { font-size: 0.65rem; color: #6e7681; text-transform: uppercase; letter-spacing: 0.06em; }
.ds-det-cell-val   { font-size: 0.85rem; font-weight: 700; color: #e6edf3; }

.ds-det-countries { margin-bottom: 0.75rem; }
.ds-det-country-chips {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 0.4rem;
}
.ds-country-chip {
  background: rgba(88,166,255,0.07);
  border: 1px solid rgba(88,166,255,0.18);
  border-radius: 100px;
  font-size: 0.72rem;
  color: #58a6ff;
  padding: 2px 9px;
}

.ds-det-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 0.875rem;
}
.ds-det-citation {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  font-size: 0.72rem;
  color: #6e7681;
  line-height: 1.45;
  margin-bottom: 1rem;
  padding: 0.5rem 0.75rem;
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.06);
}
.ds-det-citation svg { flex-shrink: 0; margin-top: 1px; }

.ds-det-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.ds-det-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.12s, transform 0.1s;
  border: none;
}
.ds-det-btn:hover { opacity: 0.88; transform: scale(1.01); }
.ds-det-btn-primary {
  background: #58a6ff;
  color: #0d1117;
}
.ds-det-btn-secondary {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: #c9d1d9;
}
.ds-det-btn-copy {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  color: #8b949e;
}
.ds-det-btn-lab {
  background: linear-gradient(135deg, #3fb950 0%, #58a6ff 100%);
  color: #fff;
}


/* ─── Responsive ─── */
@media (max-width: 768px) {
  .ds-wrap { padding: 2rem 1rem; }
  .ds-title { font-size: 1.4rem; }
  .ds-header { flex-direction: column; }
  .ds-stats-row { width: 100%; justify-content: stretch; }
  .ds-stat { flex: 1; }
  .ds-filters-row { flex-direction: column; gap: 0.75rem; }
  .ds-grid { grid-template-columns: 1fr; }
}