/* ── Skill Library Page ── */

.skills-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.skills-search {
  flex: 1 1 220px;
  min-width: 180px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 8px;
  background: var(--surface-1, #fff);
  color: var(--text-1, #1f2937);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.15s;
}
.skills-search:focus {
  border-color: var(--primary, #1e40af);
  box-shadow: 0 0 0 2px rgb(var(--ring-rgb, 59 130 246) / 0.25);
}

.skills-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.skills-filter-btn {
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 999px;
  background: var(--surface-1, #fff);
  color: var(--text-2, #374151);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition:
    background 0.15s,
    border-color 0.15s,
    color 0.15s;
  white-space: nowrap;
}
.skills-filter-btn:hover {
  background: var(--surface-2, #f3f4f6);
}
.skills-filter-btn.active {
  background: var(--primary, #1e40af);
  color: #fff;
  border-color: var(--primary, #1e40af);
}

/* ── Category-colored filter buttons ── */
.skills-filter-btn[data-cat='golden'],
.skills-filter-btn[data-cat='gold'] {
  --cat-rgb: var(--cat-gold-rgb);
}
.skills-filter-btn[data-cat='yellow'] {
  --cat-rgb: var(--cat-yellow-rgb);
}
.skills-filter-btn[data-cat='blue'] {
  --cat-rgb: var(--cat-blue-rgb);
}
.skills-filter-btn[data-cat='green'] {
  --cat-rgb: var(--cat-green-rgb);
}
.skills-filter-btn[data-cat='red'] {
  --cat-rgb: var(--cat-red-rgb);
}
.skills-filter-btn[data-cat='purple'] {
  --cat-rgb: var(--cat-purple-rgb);
}
.skills-filter-btn[data-cat='evo'] {
  --cat-rgb: var(--cat-evo-rgb);
}
.skills-filter-btn[data-cat='ius'],
.skills-filter-btn[data-cat='orange'] {
  --cat-rgb: var(--cat-orange-rgb);
}
.skills-filter-btn[data-cat]:not(.active):not([data-cat='all']) {
  border-color: rgb(var(--cat-rgb) / 0.5);
  color: rgb(var(--cat-rgb));
}
.skills-filter-btn[data-cat]:not([data-cat='all']).active {
  background: rgb(var(--cat-rgb));
  border-color: rgb(var(--cat-rgb));
  color: #fff;
}

/* ── Info bar ── */
.skills-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.8rem;
  color: var(--muted, #6b7280);
}

/* ── Table wrapper ── */
.skills-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 10px;
}

.skills-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
}

/* ── Header ── */
.skills-table thead {
  position: sticky;
  top: 0;
  z-index: 2;
}
.skills-table th {
  padding: 0.6rem 0.75rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted, #6b7280);
  background: var(--surface-2, #f3f4f6);
  border-bottom: 1px solid var(--border, #e5e7eb);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: color 0.15s;
}
.skills-table th:hover {
  color: var(--text-1, #1f2937);
}
.skills-table th.sorted-asc::after,
.skills-table th.sorted-desc::after {
  margin-left: 0.3rem;
  font-size: 0.65rem;
}
.skills-table th.sorted-asc::after {
  content: '\25B2';
}
.skills-table th.sorted-desc::after {
  content: '\25BC';
}

/* ── Right-align numeric columns ── */
.skills-table th.col-cost,
.skills-table th.col-score,
.skills-table th.col-eff,
.skills-table td.col-cost,
.skills-table td.col-score,
.skills-table td.col-eff {
  text-align: right;
}

/* ── Body rows ── */
.skills-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border, #e5e7eb);
  color: var(--text-1, #1f2937);
}
.skills-table tbody tr:last-child td {
  border-bottom: none;
}
.skills-table tbody tr:hover {
  background: var(--surface-2, #f3f4f6);
}

/* ── Category pill ── */
.skill-cat-pill {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: capitalize;
  letter-spacing: 0.02em;
}
.skill-cat-pill.cat-golden,
.skill-cat-pill.cat-gold {
  background: rgb(var(--cat-gold-rgb) / 0.15);
  color: rgb(var(--cat-gold-rgb));
}
.skill-cat-pill.cat-yellow {
  background: rgb(var(--cat-yellow-rgb) / 0.15);
  color: rgb(var(--cat-yellow-rgb));
}
.skill-cat-pill.cat-blue {
  background: rgb(var(--cat-blue-rgb) / 0.15);
  color: rgb(var(--cat-blue-rgb));
}
.skill-cat-pill.cat-green {
  background: rgb(var(--cat-green-rgb) / 0.15);
  color: rgb(var(--cat-green-rgb));
}
.skill-cat-pill.cat-red {
  background: rgb(var(--cat-red-rgb) / 0.15);
  color: rgb(var(--cat-red-rgb));
}
.skill-cat-pill.cat-purple {
  background: rgb(var(--cat-purple-rgb) / 0.15);
  color: rgb(var(--cat-purple-rgb));
}
.skill-cat-pill.cat-evo {
  background: rgb(var(--cat-evo-rgb) / 0.15);
  color: rgb(var(--cat-evo-rgb));
}
.skill-cat-pill.cat-ius,
.skill-cat-pill.cat-orange {
  background: rgb(var(--cat-orange-rgb) / 0.15);
  color: rgb(var(--cat-orange-rgb));
}

/* ── Efficiency highlight ── */
.eff-high {
  color: rgb(var(--cat-gold-rgb));
  font-weight: 600;
}
.eff-mid {
  color: var(--text-1, #1f2937);
}
.eff-low {
  color: var(--muted, #6b7280);
}

/* ── No results ── */
.skills-empty {
  padding: 2rem;
  text-align: center;
  color: var(--muted, #6b7280);
  font-size: 0.9rem;
}

/* ── Loading state ── */
.skills-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 3rem 1rem;
  color: var(--muted, #6b7280);
  font-size: 0.9rem;
}
.skills-loading::before {
  content: '';
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--border, #e5e7eb);
  border-top-color: var(--primary, #1e40af);
  border-radius: 50%;
  animation: skills-spin 0.6s linear infinite;
}
@keyframes skills-spin {
  to {
    transform: rotate(360deg);
  }
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .skills-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .skills-search {
    flex: none;
    width: 100%;
  }
  .skills-table {
    font-size: 0.8rem;
  }
  .skills-table th,
  .skills-table td {
    padding: 0.4rem 0.5rem;
  }
  .skills-table .col-eff {
    display: none;
  }
}

@media (max-width: 420px) {
  .skills-table th,
  .skills-table td {
    padding: 0.35rem 0.4rem;
    font-size: 0.75rem;
  }
  .skills-filter-btn {
    padding: 0.3rem 0.5rem;
    font-size: 0.7rem;
  }
}