/* ═══════════════════════════════════════════════════════════════
   PRODUCT INFORMATION TABS (.pi-*)
   Used by product_information.html
   ═══════════════════════════════════════════════════════════════ */

.pi-wrap {
  max-width: var(--main-width);
  margin: var(--spacing-4xl) auto 0;
  padding: var(--spacing-3xl) var(--padding-100) 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  border-top: 1px solid var(--border-light);
}

/* ── Tabs ──────────────────────────────────────────────────── */
.pi-tabs {
  position: relative;
  display: flex;
  gap: 8px;
  padding-bottom: 6px;
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border-light);
  overflow-x: auto;
  scrollbar-width: none;
}

.pi-tabs::-webkit-scrollbar {
  display: none;
}

.pi-tab {
  position: relative;
  appearance: none;
  background: none;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 10px;
  margin-bottom: -1px;
  /* sit flush on top of the tabs border */
  border-radius: 0;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.pi-tab-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: currentColor;
}

.pi-tab:hover,
.pi-tab.is-active {
  color: var(--primary-color);
  background: none;
}

.pi-tab-count {
  font-weight: 400;
  color: var(--text-muted);
  background: var(--bg-card, #f1f1f4);
  border-radius: 999px;
  padding: 1px 8px;
  font-size: var(--font-size-xs, 12px);
}

/* underline indicator on the active tab */
.pi-tab-indicator {
  display: none;
}

.pi-tab.is-active::after {
  content: '';
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: -5px;
  height: 2px;
  background: var(--primary-color);
  border-radius: 2px;
  width: 100%;
}

/* ── Panels ────────────────────────────────────────────────── */
.pi-panel {
  display: none;
}

.pi-panel.is-active {
  display: block;
  animation: pd-fadeIn var(--transition-normal);
}

.pi-empty {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  padding: var(--spacing-xl) 0;
}

/* ── Description ───────────────────────────────────────────── */
.pi-desc-grid {
  display: block;
}

.pi-desc-text {
  max-width: 82ch;
  margin: 0 0 var(--spacing-2xl);
  font-size: var(--font-size-md);
  line-height: 1.8;
  color: var(--text-secondary);
}

.pi-features-title {
  margin: var(--spacing-lg) 0;
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--text-primary);
}

.pi-feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.pi-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-card);
}

.pi-feature-check {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  background: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pi-feature-check svg {
  width: 12px;
  height: 12px;
}

.pi-feature-text {
  font-size: var(--font-size-sm);
  line-height: 1.5;
  color: var(--text-primary);
}

/* ── Specifications ────────────────────────────────────────── */
.pi-spec-list {
  margin: var(--spacing-lg) 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 var(--spacing-3xl);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-card);
}

.pi-spec-content {
  max-width: 900px;
}

.pi-spec-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: baseline;
  gap: var(--spacing-lg);
  padding: var(--spacing-md);
  font-weight: 500;
  font-size: 14px;
}

.pi-spec-row-primary {
    background-color: var(--bg-primary);
}

.pi-spec-row-secondary {
    background-color: var(--bg-active);
}

.pi-spec-row dt {
  margin: 0;
  color: var(--text-secondary);
}

.pi-spec-row dd {
  margin: 0;
  color: var(--text-primary);
  text-align: start;
}

.pi-spec-row-secondary dd,
.pi-spec-row-secondary dt{
  color: var(--primary-more-dark);
}

/* ── Accordion ─────────────────────────────────────────────── */
.pi-accordion {
  border-top: 1px solid var(--border-light);
  margin-top: var(--spacing-lg);
  overflow: hidden;
}

.pi-acc-item {
  border-bottom: 1px solid var(--border-light);
}

.pi-acc-head {
  width: 100%;
  appearance: none;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: 24px 0;
  text-align: left;
}

.pi-acc-title {
  flex: 1;
  font-family: var(--font-primary);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  padding-right: 20px;
}

.pi-acc-toggle {
  position: relative;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.pi-acc-toggle::before,
.pi-acc-toggle::after {
  content: '';
  position: absolute;
  background-color: currentColor;
  transition: transform var(--transition-normal);
}

.pi-acc-toggle::before {
  width: 14px;
  height: 1.5px;
}

.pi-acc-toggle::after {
  width: 1.5px;
  height: 14px;
}

.pi-acc-item.is-open .pi-acc-toggle::after {
  transform: rotate(90deg);
}

.pi-acc-item.is-open .pi-acc-toggle::before {
  transform: rotate(180deg);
}

.pi-acc-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.pi-acc-item.is-open .pi-acc-body {
  max-height: 500px;
  transition: max-height var(--transition-slow);
}

.pi-acc-body-inner {
  overflow: hidden;
  min-height: 0;
  padding-bottom: var(--spacing-lg);
}

.pi-para {
  margin: 0;
  font-size: var(--font-size-sm);
  line-height: 1.75;
  color: var(--text-secondary);
}

.pi-steps {
  list-style: none;
  counter-reset: pi-step;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.pi-steps li {
  counter-increment: pi-step;
  display: flex;
  gap: var(--spacing-md);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--text-secondary);
}

.pi-steps li::before {
  content: counter(pi-step);
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--primary-color);
}

.pi-plain-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.pi-plain-list li {
  position: relative;
  padding-left: var(--spacing-lg);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--text-secondary);
}

.pi-plain-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--primary-color);
}

/* ── Reviews ───────────────────────────────────────────────── */
.pi-reviews-grid {
  display: grid;
  grid-template-columns: 1fr 25%;
  gap: var(--spacing-3xl);
}

.pi-review-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.pi-review {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--bg-card);
  box-shadow: var(--shadow-light);
  transition: transform var(--transition-fast),
    box-shadow var(--transition-fast),
    border-color var(--transition-fast);
}

.pi-review:hover {
  border-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-light);
}

.pi-section {
  display: flex;
  gap: var(--spacing-md);
  width: 100%;
  justify-content: space-between;
}

.pi-div {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.pi-avatar {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 2px solid var(--border-light);
  box-shadow: var(--shadow-light);
}

.pi-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pi-review-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pi-review-name {
  margin: 0 0 5px;
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.pi-review-date {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  white-space: nowrap;
}

.pi-review-title {
  margin: 0 0 4px;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--text-primary);
}

.pi-review-text {
  margin: 0;
  font-size: var(--font-size-sm);
  line-height: 1.7;
  color: var(--text-secondary);
}

.pi-verified-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--success-bg);
  color: var(--success-color);
  font-size: var(--font-size-xs);
  font-weight: 600;
  line-height: 1.6;
}

.pi-verified-badge svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

/* ── Review summary ────────────────────────────────────────── */
.pi-review-summary {
  min-width: 355px;
  max-width: 355px;
  padding: var(--spacing-2xl);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  position: sticky;
  top: 20px;
  box-shadow: var(--shadow-light);
  height: fit-content;
}

.pi-review-avg {
  margin: 0 0 6px;
  font-size: 45px;
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
}

.pi-stars {
  display: flex;
  gap: 3px;
  margin-bottom: var(--spacing-sm);
}

.pi-star {
  width: 22px !important;
  height: 22px !important;
}

.pi-star.is-filled {
  color: var(--statr-color);
}

.pi-star.is-empty {
  color: var(--border-primary);
}

.pi-review-count {
  margin: 0 0 var(--spacing-xl);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.pi-rating-bars {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.pi-rating-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.pi-rating-label {
  display: flex;
  align-items: center;
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  gap: var(--spacing-xs);
}

.pi-rating-track {
  flex: 1;
  height: 8px;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
}

.pi-rating-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  background: var(--statr-color);
}

.pi-rating-percent {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  width: 28px;
  text-align: right;
}

/* ═══════════════════════════════════════════════════════════════
   USAGE PANEL — steps, recommended-for cards, warnings
   ═══════════════════════════════════════════════════════════════ */

.pu-section {
  margin-bottom: 28px;
}

.pu-section:last-child {
  margin-bottom: 0;
}

.pu-title {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ── Numbered steps ── */
.pu-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.pu-step {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 10px;
  align-items: start;
}

.pu-step__num {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--primary-color);
  color: var(--text-white);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.pu-step__body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 4px;
  min-width: 0;
}

.pu-step__desc {
  line-height: 1;
  color: var(--text-muted);
  font-weight: 400;
  font-size: 15px;
  letter-spacing: 0%;
}

/* ── Reco cards (Great for / Not recommended for) ── */
.pu-reco-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 720px) {
  .pu-reco-grid {
    grid-template-columns: 1fr;
  }
}

.pu-card {
  border-radius: 14px;
  padding: 20px 22px;
  border: 1px solid transparent;
}

.pu-card--full {
  grid-column: 1 / -1;
}

.pu-card--good {
  background: color-mix(in srgb, var(--success-color, #16a34a) 7%, var(--bg-card));
  border-color: color-mix(in srgb, var(--success-color, #16a34a) 18%, transparent);
}

.pu-card--bad {
  background: var(--bg-secondary, #f6f6f5);
  border-color: var(--border-light);
}

.pu-card--warn {
  background: color-mix(in srgb, var(--warning-color, #d97706) 10%, var(--bg-card));
  border-color: color-mix(in srgb, var(--warning-color, #d97706) 25%, transparent);
}

/* ── Card header ── */
.pu-card__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.pu-card__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -.005em;
}

.pu-card__icon {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 50%;
}

.pu-card__icon svg {
  width: 15px;
  height: 15px;
}

.pu-card__icon--good {
  background: color-mix(in srgb, var(--success-color, #16a34a) 18%, transparent);
  color: var(--success-color, #16a34a);
}

.pu-card__icon--bad {
  background: color-mix(in srgb, var(--text-secondary) 12%, transparent);
  color: var(--text-secondary);
}

.pu-card__icon--warn {
  background: color-mix(in srgb, var(--warning-color, #d97706) 22%, transparent);
  color: var(--warning-color, #d97706);
}

/* ── Lists inside cards ── */
.pu-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pu-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
}

.pu-list__icon {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 3px;
}

.pu-list__icon svg {
  width: 100%;
  height: 100%;
}

.pu-list--good .pu-list__icon {
  color: var(--success-color, #16a34a);
}

.pu-list--bad .pu-list__icon {
  color: var(--text-muted);
}

.pu-list--warn .pu-list__icon {
  color: var(--warning-color, #d97706);
}

/* Slight left padding on warn list rows for the icon alignment */
.pu-card--warn .pu-list li {
  gap: 14px;
}