.page-products {
  --phi-card-border: rgba(192,200,208,.18);
  --phi-shadow: 0 16px 40px rgba(0,0,0,.28);
  --phi-soft-radius: 12px;
  background: var(--deep-space);
  color: var(--text-light);
}

.page-products .phi-container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.page-products .phi-hero {
  padding-block: calc(var(--header-height) + var(--space-5)) var(--space-6);
  border-bottom-left-radius: 64px 24px;
  border-bottom-right-radius: 24px;
  background:
    radial-gradient(circle at 84% 18%, rgba(0,255,170,.16), transparent 34%),
    linear-gradient(135deg, var(--deep-space) 0%, var(--deep-teal) 100%);
}

.page-products .phi-hero-grid {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}

.page-products .phi-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-5);
  font-size: .875rem;
  color: var(--text-mist);
}

.page-products .phi-breadcrumb a {
  color: var(--metal-silver);
  text-decoration: none;
  transition: color var(--transition);
}

.page-products .phi-breadcrumb a:hover {
  color: var(--electric-green);
}

.page-products .phi-breadcrumb-sep {
  color: var(--dark-gold);
}

.page-products .phi-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.page-products .tag {
  display: inline-block;
  padding: .3em .7em;
  border: 1px solid var(--metal-silver);
  border-radius: 999px;
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--text-mist);
}

.page-products .tag--green {
  color: var(--electric-green);
  border-color: var(--electric-green);
}

.page-products .tag--gold {
  color: var(--dark-gold);
  border-color: var(--dark-gold);
}

.page-products .tag--red {
  color: var(--china-red);
  border-color: var(--china-red);
}

.page-products .phi-hero-copy h1 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  line-height: 1.12;
  margin: 0 0 var(--space-2);
  letter-spacing: .01em;
}

.page-products .phi-lead {
  max-width: 52ch;
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-mist);
  margin: 0;
}

.page-products .phi-hero-meta {
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: .9rem;
  color: var(--dark-gold);
}

.page-products .phi-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-products .button--ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--metal-silver);
  border-radius: 6px;
  background: transparent;
  color: var(--text-light);
  font-family: var(--font-mono);
  font-size: .9rem;
  text-decoration: none;
  transition:
    border-color var(--transition),
    color var(--transition),
    background var(--transition);
}

.page-products .button--ghost:hover {
  border-color: var(--electric-green);
  color: var(--electric-green);
  background: rgba(0,255,170,.06);
}

.page-products .phi-hero-visual svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .phi-trust-strip {
  padding-block: var(--space-3);
  background: rgba(0,255,170,.08);
  border-bottom: 1px solid var(--phi-card-border);
  font-size: .95rem;
}

.page-products .phi-trust-strip p {
  margin: 0;
  max-width: 80ch;
}

.page-products .phi-section {
  position: relative;
  padding-block: var(--space-6);
}

.page-products .phi-section--matrix {
  background: linear-gradient(135deg, rgba(15,89,83,.95), rgba(11,30,60,.92));
}

.page-products .phi-section--rank {
  background: linear-gradient(120deg, var(--deep-space), rgba(15,89,83,.72));
}

.page-products .phi-section--indigo {
  background: var(--indigo);
}

.page-products .phi-section--wine {
  background: var(--wine-red);
}

.page-products .phi-section-head {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  margin-bottom: var(--space-5);
  border-left: 4px solid var(--electric-green);
  padding-left: var(--space-3);
}

.page-products .phi-section-head h2 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.1;
  margin: 0 0 var(--space-1);
  letter-spacing: .02em;
}

.page-products .phi-section-head p {
  margin: 0;
  max-width: 64ch;
  color: var(--text-mist);
  font-size: 1rem;
  line-height: 1.6;
}

.page-products .phi-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--dark-gold);
  padding-top: .3rem;
}

.page-products .phi-overview-grid,
.page-products .phi-rank-grid,
.page-products .phi-h2h-grid,
.page-products .phi-lineup-grid,
.page-products .phi-version-grid {
  display: grid;
  gap: var(--space-4);
  align-items: center;
}

.page-products .phi-overview-list h3,
.page-products .phi-rhythm-head h3,
.page-products .phi-module-card h3,
.page-products .phi-arch-card h3,
.page-products .phi-version-card h3 {
  font-family: var(--font-head);
  font-weight: 800;
}

.page-products .phi-overview-list h3 {
  margin: 0 0 var(--space-2);
}

.page-products .phi-feature-list {
  list-style: none;
  margin: var(--space-3) 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-products .phi-feature-list li {
  padding: var(--space-2) 0;
  border-bottom: 1px dashed var(--phi-card-border);
}

.page-products .phi-feature-list p,
.page-products .phi-overview-list > p,
.page-products .phi-rank-copy > p,
.page-products .phi-h2h-copy > p,
.page-products .phi-lineup-copy > p,
.page-products .phi-version-copy > p {
  line-height: 1.65;
  color: var(--text-mist);
}

.page-products .phi-arch-grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.page-products .folder-card.phi-arch-card,
.page-products .folder-card.phi-module-card {
  border: 1px solid var(--phi-card-border);
  border-left: 4px solid var(--electric-green);
  border-radius: var(--phi-soft-radius);
  background: rgba(11,30,60,.55);
  padding: var(--space-3);
  transition:
    transform var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.page-products .folder-card.phi-arch-card:hover,
.page-products .folder-card.phi-module-card:hover {
  transform: translateY(-4px);
  border-color: var(--electric-green);
  box-shadow: var(--phi-shadow);
}

.page-products .phi-arch-card h3,
.page-products .phi-module-card h3 {
  margin: 0 0 var(--space-1);
  font-size: 1.05rem;
}

.page-products .phi-arch-card p,
.page-products .phi-module-card p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.6;
  color: var(--text-mist);
}

.page-products .phi-module-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}

.page-products .phi-tabs {
  margin-top: var(--space-2);
}

.page-products .phi-tab-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--phi-card-border);
}

.page-products .phi-tab-link {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--phi-card-border);
  border-radius: 6px;
  color: var(--text-mist);
  background: rgba(11,30,60,.35);
  font-family: var(--font-mono);
  font-size: .9rem;
  text-decoration: none;
  transition:
    color var(--transition),
    border-color var(--transition),
    background var(--transition);
}

.page-products .phi-tab-link:hover {
  color: var(--electric-green);
  border-color: var(--electric-green);
}

.page-products .phi-tab-link.is-active {
  color: var(--electric-green);
  border-color: var(--electric-green);
  background: rgba(0,255,170,.08);
}

.page-products .phi-panel {
  display: none;
}

.page-products .phi-panel:target {
  display: block;
}

.page-products .phi-panel.is-default {
  display: block;
}

.page-products:has(.phi-panel:target:not(.is-default)) .phi-panel.is-default {
  display: none;
}

.page-products:has(.phi-panel:target:not(.is-default)) .phi-tab-link.is-active {
  color: var(--text-mist);
  border-color: var(--phi-card-border);
  background: rgba(11,30,60,.35);
}

.page-products:has(#tab-service:target) .phi-tab-link[href="#tab-service"],
.page-products:has(#tab-scene:target) .phi-tab-link[href="#tab-scene"] {
  color: var(--electric-green);
  border-color: var(--electric-green);
  background: rgba(0,255,170,.08);
}

.page-products .phi-service-grid {
  display: grid;
  gap: var(--space-3);
}

.page-products .phi-service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-products .phi-service-list li {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2);
  border-bottom: 1px dashed var(--phi-card-border);
}

.page-products .phi-service-note {
  padding: var(--space-4);
  border: 1px solid var(--phi-card-border);
  border-radius: var(--phi-soft-radius);
  background: rgba(11,30,60,.45);
}

.page-products .phi-service-note p {
  margin: 0;
  line-height: 1.6;
  color: var(--text-mist);
}

.page-products .phi-scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.page-products .phi-scene-list a {
  display: block;
  padding: var(--space-3);
  border: 1px solid var(--phi-card-border);
  border-radius: var(--phi-soft-radius);
  background: rgba(11,30,60,.45);
  color: var(--text-light);
  text-decoration: none;
  transition:
    color var(--transition),
    border-color var(--transition),
    transform var(--transition);
}

.page-products .phi-scene-list a:hover {
  color: var(--electric-green);
  border-color: var(--electric-green);
  transform: translateX(4px);
}

.page-products .phi-check-list {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-products .phi-check-list li {
  position: relative;
  padding-left: var(--space-3);
  color: var(--text-mist);
  line-height: 1.5;
}

.page-products .phi-check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: 8px;
  height: 8px;
  background: var(--electric-green);
  transform: rotate(45deg);
}

.page-products .phi-rhythm {
  margin-top: var(--space-5);
  padding: var(--space-4);
  border: 1px solid var(--phi-card-border);
  border-radius: var(--phi-soft-radius);
  background: rgba(11,30,60,.4);
}

.page-products .phi-rhythm-head {
  margin-bottom: var(--space-3);
}

.page-products .phi-rhythm-head h3 {
  margin: 0;
  font-size: 1.2rem;
}

.page-products .phi-rhythm-row {
  display: grid;
  grid-template-columns: 6.5em 1fr auto;
  gap: var(--space-2);
  align-items: center;
  margin-bottom: var(--space-2);
}

.page-products .phi-rhythm-row:last-child {
  margin-bottom: 0;
}

.page-products .phi-rhythm-label {
  font-size: .9rem;
  color: var(--text-mist);
}

.page-products .phi-rhythm-track {
  height: 10px;
  border-radius: 999px;
  background: rgba(192,200,208,.16);
  overflow: hidden;
}

.page-products .phi-rhythm-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--deep-teal), var(--electric-green));
  transition: background var(--transition);
}

.page-products .phi-rhythm--score { width: 96%; }
.page-products .phi-rhythm--rank { width: 82%; }
.page-products .phi-rhythm--lineup { width: 68%; }
.page-products .phi-rhythm--cache { width: 50%; }

.page-products .phi-rhythm-row:hover .phi-rhythm-fill {
  background: linear-gradient(90deg, var(--electric-green), var(--dark-gold));
}

.page-products .phi-steps {
  margin: var(--space-4) 0;
  padding-left: var(--space-4);
  display: grid;
  gap: var(--space-2);
}

.page-products .phi-steps li {
  font-weight: 600;
  color: var(--text-light);
}

.page-products .phi-table-caption {
  display: block;
  text-align: left;
  font-family: var(--font-mono);
  color: var(--dark-gold);
  margin-bottom: var(--space-2);
}

.page-products .phi-sample-table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(11,30,60,.4);
}

.page-products .phi-sample-table th,
.page-products .phi-sample-table td {
  padding: var(--space-2);
  border-bottom: 1px solid var(--phi-card-border);
  text-align: left;
  font-size: .9rem;
}

.page-products .phi-sample-table .num {
  font-family: var(--font-mono);
  color: var(--electric-green);
  text-align: right;
}

.page-products .phi-tag-list {
  list-style: none;
  margin: var(--space-3) 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-products .phi-expand-card {
  margin-top: var(--space-3);
}

.page-products .expand summary {
  font-family: var(--font-mono);
  font-size: .9rem;
  color: var(--electric-green);
  cursor: pointer;
}

.page-products .expand summary:focus-visible,
.page-products a:focus-visible {
  outline: 2px solid var(--electric-green);
  outline-offset: 3px;
}

.page-products .expand-body {
  padding-top: var(--space-2);
  color: var(--text-mist);
  font-size: .9rem;
  line-height: 1.6;
}

.page-products .phi-timeline {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.page-products .phi-version-card {
  padding: var(--space-4);
  border: 1px solid var(--phi-card-border);
  border-radius: var(--phi-soft-radius);
  background: rgba(11,30,60,.45);
  transition:
    transform var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.page-products .phi-version-card:hover,
.page-products .phi-version-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--electric-green);
  box-shadow: var(--phi-shadow);
}

.page-products .phi-version-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--dark-gold);
}

.page-products .phi-version-card h3 {
  margin: var(--space-2) 0 var(--space-1);
  font-size: 1.2rem;
}

.page-products .phi-version-card p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.6;
  color: var(--text-mist);
}

.page-products .phi-version-card:hover h3,
.page-products .phi-version-card:focus-within h3 {
  color: var(--electric-green);
}

.page-products .phi-getting {
  margin-top: var(--space-6);
  padding: var(--space-5);
  border-left: 6px solid var(--electric-green);
  border-radius: var(--phi-soft-radius);
  background: linear-gradient(120deg, rgba(11,30,60,.7), rgba(15,89,83,.35));
}

.page-products .phi-getting p {
  max-width: 72ch;
  margin: 0;
  line-height: 1.65;
  color: var(--text-mist);
}

.page-products .phi-getting-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-products .phi-media {
  position: relative;
  border: 1px solid var(--phi-card-border);
  border-radius: var(--phi-soft-radius);
  overflow: hidden;
  background: rgba(192,200,208,.06);
  line-height: 0;
}

.page-products .phi-media--wide {
  aspect-ratio: 8 / 5;
}

.page-products .phi-media--3to2 {
  aspect-ratio: 3 / 2;
}

.page-products .phi-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .data-number {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--electric-green);
  font-variant-numeric: tabular-nums;
}

.page-products .data-label {
  color: var(--text-mist);
  font-size: .85rem;
}

@media (min-width: 720px) {
  .page-products .phi-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr);
  }

  .page-products .phi-overview-grid,
  .page-products .phi-rank-grid,
  .page-products .phi-lineup-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr);
  }

  .page-products .phi-h2h-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr);
    align-items: start;
  }

  .page-products .phi-version-grid {
    grid-template-columns: minmax(0, 1fr) minmax(260px, .8fr);
  }

  .page-products .phi-arch-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .phi-service-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-products .phi-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-products .phi-module-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}