/* ==============================
   Comparison Table - Premium data table
   ============================== */

/* ---- Key / legend ---- */
.comparison-table__key {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  justify-content: flex-end;
}

.comparison-table__key-label {
  font-weight: 500;
  color: var(--text-tertiary);
}

.comparison-table__key-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.comparison-table {
  margin-block: 0 var(--space-xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  background: var(--surface-2);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.comparison-table__wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ---- Table ---- */
.comparison-table__grid {
  width: 100%;
  border-collapse: collapse;
  white-space: nowrap;
}

/* ---- Header ---- */
.comparison-table__th {
  padding: var(--space-sm) var(--space-sm);
  text-align: left;
  font-weight: 500;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  background: var(--surface-3);
  border-bottom: 1px solid var(--border-default);
  position: relative;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.comparison-table__th--compact {
  padding-inline: var(--space-xs);
  text-align: center;
}

.comparison-table__th:first-child {
  padding-left: var(--space-lg);
}

.comparison-table__th-inner {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.comparison-table__th-inner i {
  opacity: 0.5;
}

/* ---- Rows ---- */
.comparison-table__row {
  transition: background var(--duration-fast) var(--ease-out);
}

.comparison-table__row:hover {
  background: rgba(var(--color-primary-rgb), 0.04);
}

.comparison-table__row:not(:last-child) {
  border-bottom: 1px solid var(--border-subtle);
}

/* ---- Cells ---- */
.comparison-table__cell {
  padding: var(--space-sm);
  font-size: var(--font-size-sm);
  vertical-align: middle;
  color: var(--text-secondary);
}

.comparison-table__cell:first-child {
  padding-left: var(--space-lg);
}

.comparison-table__cell--center {
  text-align: center;
}

/* ---- Engine name cell - stacked icon + name ---- */
.comparison-table__cell--name {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--surface-2);
}

.comparison-table__row:hover .comparison-table__cell--name {
  background: color-mix(in srgb, var(--surface-2), rgba(var(--color-primary-rgb), 0.04) 50%);
}

.comparison-table__engine-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  color: var(--text-primary);
  padding: var(--space-xs) var(--space-sm);
}

.comparison-table__engine-logo {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.comparison-table__engine-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.comparison-table__engine-link strong {
  font-weight: 600;
  font-size: var(--font-size-xs);
}

.comparison-table__engine-link:hover strong {
  color: var(--color-primary);
}

/* ---- Languages cell ---- */
.comparison-table__cell--lang {
  max-width: 130px;
  white-space: normal;
  font-size: var(--font-size-xs);
}

/* ---- Icons ---- */
.comparison-table__icon--yes {
  width: 18px;
  height: 18px;
  color: var(--color-success);
}

.comparison-table__icon--no {
  width: 16px;
  height: 16px;
  color: var(--text-tertiary);
  opacity: 0.4;
}

/* ---- Capability dots (2D / 3D) ---- */
.cap-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.cap-dot--native {
  background: var(--color-success);
  box-shadow: 0 0 4px rgba(var(--color-success-rgb), 0.5);
}

.cap-dot--supported {
  background: var(--color-primary);
  box-shadow: 0 0 4px rgba(var(--color-primary-rgb), 0.4);
}

.cap-dot--limited {
  background: var(--color-warning);
  box-shadow: 0 0 4px rgba(var(--color-warning-rgb), 0.4);
}

.cap-dot--none {
  background: var(--text-tertiary);
  opacity: 0.3;
}

/* ---- Platform icon grid ---- */
.comparison-table__platform-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 3px;
  max-width: 110px;
}

.plat-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-sm);
}

.plat-icon--native {
  color: var(--color-success);
  opacity: 0.9;
}

.plat-icon--middleware {
  color: var(--color-warning);
  opacity: 0.7;
}

.plat-icon--none {
  color: var(--text-tertiary);
  opacity: 0.2;
}

.plat-icon__svg {
  flex-shrink: 0;
}

.plat-icon__img {
  display: inline-block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  background-color: currentColor;
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  -webkit-mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
}

/* ---- Cost ---- */
.comparison-table__cost {
  font-size: var(--font-size-xs);
  line-height: 1.4;
  white-space: normal;
  max-width: 150px;
  display: inline-block;
}

/* ---- AI Rating ---- */
.comparison-table__ai-rating {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--font-size-sm);
  font-family: var(--font-mono);
}

.comparison-table__ai-rating--5 {
  background: rgba(var(--color-success-rgb), 0.15);
  color: var(--color-success);
}

.comparison-table__ai-rating--4 {
  background: rgba(var(--color-success-rgb), 0.1);
  color: var(--color-success);
}

.comparison-table__ai-rating--3 {
  background: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
}

.comparison-table__ai-rating--2 {
  background: rgba(var(--color-warning-rgb), 0.12);
  color: var(--color-warning);
}

.comparison-table__ai-rating--1 {
  background: rgba(255, 69, 58, 0.12);
  color: var(--color-danger);
}

/* ---- Tags in table ---- */
.comparison-table__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.comparison-table__tags .tag {
  font-size: 0.65rem;
  padding: 2px 8px;
}

/* ---- Mobile ---- */
@media (max-width: 768px) {
  .comparison-table {
    border-radius: var(--radius-lg);
    margin-inline: calc(-1 * var(--space-lg));
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .comparison-table__key {
    flex-wrap: wrap;
    gap: var(--space-xs) var(--space-md);
    justify-content: center;
  }

  .comparison-table__cell--lang {
    max-width: 100px;
  }

  .comparison-table__platform-grid {
    max-width: 90px;
  }
}