/* ============================================================
   KernelSight Dashboard — Styles
   Technical manual aesthetic: monospace headers, clean lines,
   no shadows, no rounded corners.
   ============================================================ */

/* --- Stats Bar --- */
.ks-stats-bar {
  display: flex;
  gap: 0;
  border-top: 2px solid var(--ks-section);
  border-bottom: 1px solid var(--ks-border);
  margin-bottom: 2rem;
}

.ks-stat-card {
  flex: 1;
  padding: 1.2rem 1rem;
  border-right: 1px solid var(--ks-border);
  text-align: left;
}

.ks-stat-card:last-child {
  border-right: none;
}

.ks-stat-card .ks-stat-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--ks-section);
  display: block;
  line-height: 1.2;
}

.ks-stat-card .ks-stat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ks-fg-muted);
  display: block;
  margin-top: 0.3rem;
}

/* --- Search & Filter Controls --- */
.ks-controls {
  margin-bottom: 1.5rem;
}

.ks-search-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
  align-items: stretch;
}

.ks-search-input {
  flex: 1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--ks-border);
  border-radius: 0;
  background: var(--ks-bg-surface);
  color: var(--ks-fg);
  outline: none;
  transition: border-color 0.15s;
}

.ks-search-input:focus {
  border-color: var(--ks-section);
}

.ks-search-input::placeholder {
  color: var(--ks-fg-light);
}

.ks-filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.ks-chip {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--ks-border);
  border-radius: 0;
  background: transparent;
  color: var(--ks-fg-muted);
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
}

.ks-chip:hover {
  border-color: var(--ks-section);
  color: var(--ks-section);
}

.ks-chip.active {
  border-color: var(--ks-section);
  background: var(--ks-cobalt-wash-strong);
  color: var(--ks-section);
}

.ks-chip-clear {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.6rem;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--ks-fg-light);
  cursor: pointer;
  transition: color 0.15s;
}

.ks-chip-clear:hover {
  color: var(--ks-badge-itw);
}

.ks-result-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--ks-fg-muted);
  margin-bottom: 0.8rem;
}

/* --- CVE Table --- */
.ks-table-wrap {
  overflow-x: auto;
  margin-bottom: 2rem;
}

.ks-cve-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}

.ks-cve-table thead {
  background: transparent;
}

.ks-cve-table th {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ks-fg-muted);
  border-bottom: 2px solid var(--ks-section);
  border-top: none;
  border-left: none;
  border-right: none;
  padding: 0.5rem 0.6rem;
  text-align: left;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  transition: color 0.15s;
}

.ks-cve-table th:hover {
  color: var(--ks-section);
}

.ks-cve-table th .sort-arrow {
  display: inline-block;
  margin-left: 0.3rem;
  font-size: 0.6rem;
  opacity: 0.4;
}

.ks-cve-table th.sorted .sort-arrow {
  opacity: 1;
  color: var(--ks-section);
}

.ks-cve-table td {
  border: none;
  border-bottom: 1px solid var(--ks-border);
  padding: 0.5rem 0.6rem;
  vertical-align: middle;
}

.ks-cve-table tbody tr {
  transition: background 0.1s;
}

.ks-cve-table tbody tr:hover {
  background: color-mix(in srgb, var(--ks-section) 5%, transparent);
}

.ks-cve-table tbody tr.hidden {
  display: none;
}

.ks-cve-table a {
  color: var(--ks-cobalt);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 0.76rem;
}

.ks-cve-table a:hover {
  border-bottom-color: var(--ks-cobalt);
}

.ks-cve-table .clickable {
  cursor: pointer;
  transition: color 0.15s;
}

.ks-cve-table .clickable:hover {
  color: var(--ks-section);
}

/* --- Table Badges --- */
.ks-badge {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  font-weight: 600;
  padding: 0.08rem 0.35rem;
  border-radius: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  vertical-align: middle;
  line-height: 1.4;
}

.ks-badge-itw {
  color: var(--ks-badge-itw);
  border: 1px solid var(--ks-badge-itw);
}

.ks-badge-poc {
  color: var(--ks-c-primitives);
  border: 1px solid var(--ks-c-primitives);
}

.ks-badge-writeup {
  color: var(--ks-c-surfaces);
  border: 1px solid var(--ks-c-surfaces);
}

.ks-badges-cell {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
}

/* --- Heat Matrix --- */
.ks-matrix-section {
  margin: 2.5rem 0;
}

.ks-matrix-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ks-fg-muted);
  margin-bottom: 1rem;
}

.ks-matrix-scroll {
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.ks-matrix {
  display: grid;
  gap: 1px;
  background: var(--ks-border);
  border: 1px solid var(--ks-border);
  width: max-content;
  min-width: 100%;
}

.ks-matrix-header {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  font-weight: 500;
  padding: 0.4rem 0.5rem;
  background: var(--ks-bg-surface);
  color: var(--ks-fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ks-matrix-header.row-header {
  text-align: right;
  min-width: 120px;
}

.ks-matrix-header.col-header {
  text-align: center;
  writing-mode: horizontal-tb;
  min-width: 60px;
}

.ks-matrix-header.corner {
  background: var(--ks-bg-surface);
}

.ks-matrix-cell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.4rem;
  cursor: pointer;
  transition: outline 0.1s;
  min-height: 32px;
}

.ks-matrix-cell:hover {
  outline: 2px solid var(--ks-section);
  outline-offset: -2px;
  z-index: 1;
}

/* Heat levels — light mode */
.ks-heat-0 {
  background: var(--ks-bg-surface);
  color: transparent;
}

.ks-heat-1 {
  background: color-mix(in srgb, var(--ks-cobalt) 8%, var(--ks-bg-surface));
  color: var(--ks-cobalt);
}

.ks-heat-2 {
  background: color-mix(in srgb, var(--ks-cobalt) 18%, var(--ks-bg-surface));
  color: var(--ks-cobalt);
}

.ks-heat-3 {
  background: color-mix(in srgb, var(--ks-cobalt) 30%, var(--ks-bg-surface));
  color: #fff;
}

.ks-heat-4 {
  background: color-mix(in srgb, var(--ks-cobalt) 50%, var(--ks-bg-surface));
  color: #fff;
}

/* ITW red dot */
.ks-itw-dot {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 5px;
  height: 5px;
  background: var(--ks-badge-itw);
  border-radius: 50%;
}

/* --- Export Buttons --- */
.ks-export-row {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.ks-export-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--ks-border);
  border-radius: 0;
  background: var(--ks-bg-surface);
  color: var(--ks-fg-muted);
  cursor: pointer;
  transition: all 0.15s;
}

.ks-export-btn:hover {
  border-color: var(--ks-section);
  color: var(--ks-section);
}

/* --- Dark Mode (Slate) Overrides --- */
[data-md-color-scheme="slate"] .ks-search-input {
  background: var(--ks-bg-surface);
  border-color: var(--ks-border);
  color: var(--ks-fg);
}

[data-md-color-scheme="slate"] .ks-search-input:focus {
  border-color: var(--ks-section);
}

[data-md-color-scheme="slate"] .ks-heat-0 {
  background: var(--ks-bg-surface);
}

[data-md-color-scheme="slate"] .ks-heat-1 {
  background: color-mix(in srgb, var(--ks-cobalt) 10%, var(--ks-bg-surface));
  color: var(--ks-cobalt);
}

[data-md-color-scheme="slate"] .ks-heat-2 {
  background: color-mix(in srgb, var(--ks-cobalt) 22%, var(--ks-bg-surface));
  color: var(--ks-cobalt);
}

[data-md-color-scheme="slate"] .ks-heat-3 {
  background: color-mix(in srgb, var(--ks-cobalt) 35%, var(--ks-bg-surface));
  color: #fff;
}

[data-md-color-scheme="slate"] .ks-heat-4 {
  background: color-mix(in srgb, var(--ks-cobalt) 55%, var(--ks-bg-surface));
  color: #fff;
}

[data-md-color-scheme="slate"] .ks-export-btn {
  background: var(--ks-bg-surface);
  border-color: var(--ks-border);
  color: var(--ks-fg-muted);
}

[data-md-color-scheme="slate"] .ks-export-btn:hover {
  border-color: var(--ks-section);
  color: var(--ks-section);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .ks-stats-bar {
    flex-direction: column;
  }

  .ks-stat-card {
    border-right: none;
    border-bottom: 1px solid var(--ks-border);
    padding: 0.8rem 1rem;
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
  }

  .ks-stat-card:last-child {
    border-bottom: none;
  }

  .ks-stat-card .ks-stat-number {
    font-size: 1.3rem;
  }

  .ks-search-row {
    flex-direction: column;
  }

  .ks-matrix-scroll {
    -webkit-overflow-scrolling: touch;
  }

  .ks-export-row {
    flex-wrap: wrap;
  }

  .ks-cve-table {
    font-size: 0.72rem;
  }

  .ks-cve-table th,
  .ks-cve-table td {
    padding: 0.4rem;
  }
}

@media (max-width: 480px) {
  .ks-filter-chips {
    gap: 0.3rem;
  }

  .ks-chip {
    font-size: 0.58rem;
    padding: 0.25rem 0.45rem;
  }
}