/* ═══════════════════════════════════════════════════════════════
   OmicsLab — Study Pack styles
   ═══════════════════════════════════════════════════════════════ */

/* ── Wrapper ── */
.sp-wrap {
  min-height: 100vh;
  background: #0d1117;
  color: #e6edf3;
}

/* ── Header ── */
.sp-header {
  background: linear-gradient(135deg, #161b22 0%, #0d1117 60%);
  border-bottom: 1px solid #21262d;
  padding: 2.5rem 0 1.5rem;
}
.sp-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}
.sp-header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.sp-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #3fb950;
  margin-bottom: 0.35rem;
}
.sp-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: #e6edf3;
  margin: 0 0 0.5rem;
  line-height: 1.15;
}
.sp-sub {
  font-size: 0.88rem;
  color: #7d8590;
  max-width: 560px;
  line-height: 1.6;
  margin: 0;
}
.sp-export-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: #21262d;
  border: 1px solid #30363d;
  color: #c9d1d9;
  padding: 0.55rem 1rem;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background 0.15s, border-color 0.15s;
}
.sp-export-btn:hover { background: #30363d; border-color: #58a6ff; color: #58a6ff; }

/* ── Progress ── */
.sp-progress-wrap { }
.sp-prog-stats {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}
.sp-prog-num {
  font-size: 1.4rem;
  font-weight: 700;
  color: #3fb950;
}
.sp-prog-den {
  font-size: 0.9rem;
  color: #7d8590;
}
.sp-prog-label {
  font-size: 0.8rem;
  color: #7d8590;
}
.sp-prog-sep {
  width: 1px;
  height: 14px;
  background: #30363d;
}
.sp-prog-ip {
  font-size: 0.8rem;
  color: #e3b341;
}
.sp-prog-bar-wrap {
  height: 4px;
  background: #21262d;
  border-radius: 2px;
  overflow: hidden;
  max-width: 420px;
}
.sp-prog-bar {
  height: 100%;
  background: linear-gradient(90deg, #3fb950, #58a6ff);
  border-radius: 2px;
  transition: width 0.4s;
}

/* ── Body layout ── */
.sp-body {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 2rem 4rem;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: start;
}

/* ── Sidebar ── */
.sp-sidebar {
  position: sticky;
  top: 1.5rem;
}
.sp-search-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  margin-bottom: 1.5rem;
  color: #7d8590;
}
.sp-search-wrap:focus-within { border-color: #58a6ff; }
.sp-search {
  background: none;
  border: none;
  outline: none;
  color: #e6edf3;
  font-size: 0.83rem;
  width: 100%;
}
.sp-search::placeholder { color: #7d8590; }
.sp-filter-group { margin-bottom: 1.5rem; }
.sp-filter-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: #7d8590;
  padding: 0 0 0.5rem 0.25rem;
}
.sp-cat-btn,
.sp-sf-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  color: #7d8590;
  font-size: 0.82rem;
  padding: 0.4rem 0.5rem;
  border-radius: 5px;
  cursor: pointer;
  text-align: left;
  transition: background 0.12s, color 0.12s;
}
.sp-cat-btn:hover,  .sp-sf-btn:hover  { background: #161b22; color: #c9d1d9; }
.sp-cat-active, .sp-sf-active { background: #1a2233 !important; color: #58a6ff !important; }
.sp-filter-count {
  background: #21262d;
  color: #7d8590;
  font-size: 0.68rem;
  padding: 0.1rem 0.45rem;
  border-radius: 10px;
}

/* ── Main ── */
.sp-grid-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.sp-count {
  font-size: 0.78rem;
  color: #7d8590;
}
.sp-empty {
  text-align: center;
  padding: 3rem;
  color: #7d8590;
  font-size: 0.9rem;
}

/* ── Cards ── */
.sp-card {
  background: #161b22;
  border: 1px solid #21262d;
  border-radius: 8px;
  margin-bottom: 0.6rem;
  overflow: hidden;
  border-left: 3px solid var(--mc, #58a6ff);
  transition: border-color 0.15s;
}
.sp-card:hover { border-color: var(--mc, #58a6ff); background: #1a1f28; }
.sp-card-open { background: #1a1f28; }

.sp-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1rem;
  cursor: pointer;
  gap: 1rem;
}
.sp-card-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
}
.sp-cat-tag {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}
.sp-card-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: #c9d1d9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sp-note-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #58a6ff;
  flex-shrink: 0;
}
.sp-card-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}
.sp-time {
  font-size: 0.72rem;
  color: #7d8590;
  white-space: nowrap;
}
.sp-status-badge {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.15rem 0.55rem;
  border-radius: 4px;
  white-space: nowrap;
}
.sp-badge-ns   { background: #21262d; color: #7d8590; }
.sp-badge-ip   { background: #2d2a1e; color: #e3b341; }
.sp-badge-done { background: #1a2d1e; color: #3fb950; }
.sp-bm-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: #7d8590;
  padding: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  transition: color 0.12s;
}
.sp-bm-btn:hover, .sp-bm-active { color: #e3b341 !important; }
.sp-caret {
  color: #7d8590;
  transition: transform 0.2s;
  flex-shrink: 0;
}
.sp-card-open .sp-caret { transform: rotate(180deg); }

/* ── Card body ── */
.sp-card-body {
  padding: 0 1.25rem 1.25rem;
  border-top: 1px solid #21262d;
}
.sp-why {
  font-size: 0.85rem;
  color: #7d8590;
  line-height: 1.6;
  margin: 1rem 0 1.1rem;
  padding-left: 0.75rem;
  border-left: 2px solid var(--mc, #58a6ff);
  font-style: italic;
}
.sp-section-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7d8590;
  margin: 0 0 0.6rem;
}

/* Objectives */
.sp-obj-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
}
.sp-obj-item {
  font-size: 0.84rem;
  color: #c9d1d9;
  line-height: 1.55;
  padding: 0.3rem 0 0.3rem 1.2rem;
  position: relative;
}
.sp-obj-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mc, #58a6ff);
  opacity: 0.8;
}

/* Concepts */
.sp-concepts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}
.sp-concept {
  background: #0d1117;
  border: 1px solid #21262d;
  border-radius: 5px;
  padding: 0.6rem 0.8rem;
}
.sp-concept-term {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--mc, #58a6ff);
  margin-bottom: 0.25rem;
}
.sp-concept-def {
  display: block;
  font-size: 0.78rem;
  color: #7d8590;
  line-height: 1.5;
}

/* Notes */
.sp-notes-area {
  background: #0d1117;
  border: 1px solid #21262d;
  border-radius: 6px;
  padding: 0.9rem;
  margin-bottom: 1rem;
}
.sp-notes-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
}
.sp-save-ind {
  font-size: 0.72rem;
  color: #3fb950;
  min-width: 50px;
  text-align: right;
}
.sp-notes-ta {
  width: 100%;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 5px;
  color: #c9d1d9;
  font-size: 0.83rem;
  font-family: inherit;
  padding: 0.65rem 0.8rem;
  resize: vertical;
  outline: none;
  line-height: 1.6;
  box-sizing: border-box;
  transition: border-color 0.15s;
}
.sp-notes-ta:focus { border-color: #58a6ff; }
.sp-notes-ta::placeholder { color: #484f58; }
.sp-notes-foot {
  margin-top: 0.35rem;
  text-align: right;
}
.sp-char-count {
  font-size: 0.7rem;
  color: #484f58;
}

/* Actions */
.sp-card-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.sp-status-sel {
  background: #21262d;
  border: 1px solid #30363d;
  color: #c9d1d9;
  padding: 0.45rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  outline: none;
}
.sp-status-sel:focus { border-color: #58a6ff; }
.sp-open-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--mc, #58a6ff);
  color: #0d1117;
  border: none;
  padding: 0.45rem 1rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}
.sp-open-btn:hover { opacity: 0.85; }

/* ── Responsive ── */
@media (max-width: 860px) {
  .sp-body { grid-template-columns: 1fr; }
  .sp-sidebar { position: static; }
  .sp-filter-group { display: flex; flex-wrap: wrap; gap: 0.3rem; }
  .sp-filter-label { width: 100%; }
  .sp-cat-btn, .sp-sf-btn { width: auto; padding: 0.3rem 0.65rem; }
}
@media (max-width: 600px) {
  .sp-header-inner, .sp-body { padding-left: 1rem; padding-right: 1rem; }
  .sp-header-top { flex-direction: column; }
  .sp-card-name { max-width: 160px; }
  .sp-concepts { grid-template-columns: 1fr; }
}