.page-products {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  overflow-x: hidden;
}

.page-products *,
.page-products *::before,
.page-products *::after {
  box-sizing: border-box;
}

.page-products h1,
.page-products h2,
.page-products h3,
.page-products h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--paper);
  margin: 0;
}

.page-products p {
  margin: 0 0 1.1em;
}

.page-products a {
  color: var(--paper);
}

.page-products .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- breadcrumb ---------- */
.page-products .breadcrumb {
  padding: 24px 0 2px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-products .breadcrumb a {
  color: var(--sand);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-products .breadcrumb a:hover {
  color: var(--pulse);
  border-bottom-color: var(--pulse);
}

/* ---------- hero ---------- */
.page-products .svc-hero {
  padding: 16px 0 40px;
}

.page-products .hero-grid {
  display: grid;
  gap: 34px;
  align-items: center;
}

.page-products .index-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-products .hero-copy h1 {
  font-size: clamp(30px, 8.2vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 14px 0 18px;
  max-width: 16ch;
}

.page-products .hero-lead {
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--paper);
  opacity: 0.86;
  max-width: 52ch;
}

.page-products .hero-actions {
  margin: 24px 0 0;
  gap: 12px;
}

.page-products .hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 28px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-products .hero-stats dt {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--sand);
}

.page-products .hero-stats dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 14.5px;
  color: var(--gold);
}

.page-products .hero-visual {
  display: flex;
  justify-content: center;
}

.page-products .orbit-svg {
  width: 100%;
  max-width: 440px;
  height: auto;
  display: block;
}

.page-products .ring-a,
.page-products .ring-b,
.page-products .ring-c {
  transform-box: view-box;
  transform-origin: 210px 210px;
}

.page-products .ring-a {
  animation: pp-spin 44s linear infinite;
}

.page-products .ring-b {
  animation: pp-spin 30s linear infinite reverse;
}

.page-products .ring-c {
  animation: pp-spin 38s linear infinite;
}

.page-products .node {
  animation: pp-breathe 6s ease-in-out infinite;
}

.page-products .node:nth-of-type(2) {
  animation-delay: 1.4s;
}

@keyframes pp-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pp-breathe {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.45;
  }
}

/* ---------- chapters ---------- */
.page-products .chapter {
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

.page-products .sec-head {
  margin-bottom: 26px;
}

.page-products .sec-head h2 {
  font-size: clamp(24px, 5.2vw, 38px);
  line-height: 1.24;
  margin: 12px 0 14px;
  max-width: 24ch;
}

.page-products .sec-lead {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--sand);
  max-width: 62ch;
}

.page-products .chapter-main h2 {
  font-size: clamp(22px, 4.8vw, 34px);
  line-height: 1.26;
  margin: 12px 0 16px;
}

.page-products .chapter-main p {
  color: var(--paper);
  opacity: 0.86;
}

/* ---------- service grid ---------- */
.page-products .svc-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-products .svc-cell {
  background: var(--ink-deep);
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .svc-cell-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.page-products .svc-ico {
  font-size: 18px;
  color: var(--pulse);
  line-height: 1;
}

.page-products .svc-num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--sand);
}

.page-products .svc-name {
  font-size: 19px;
  line-height: 1.4;
  margin: 0;
}

.page-products .svc-line {
  font-size: 14px;
  line-height: 1.75;
  color: var(--sand);
  margin: 0;
}

/* ---------- expand control ---------- */
.page-products .expand-toggle {
  align-self: flex-start;
  margin-top: 4px;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  color: var(--pulse);
  font-family: var(--font-body);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-products .expand-toggle:hover {
  border-color: var(--pulse);
}

.page-products .expand-toggle:focus-visible {
  outline: 2px solid var(--pulse);
  outline-offset: 2px;
}

.page-products .expand-panel {
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--nebula);
  font-size: 14px;
  line-height: 1.8;
  color: var(--sand);
}

/* ---------- figures ---------- */
.page-products .fig {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-deep);
  box-shadow: var(--shadow);
}

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

.page-products .fig-wide {
  aspect-ratio: 2 / 1;
}

.page-products .fig-square {
  aspect-ratio: 1 / 1;
}

.page-products .fig-3x2 {
  aspect-ratio: 3 / 2;
}

.page-products .fig-10x7 {
  aspect-ratio: 10 / 7;
}

.page-products .fig-pano {
  aspect-ratio: 40 / 13;
}

.page-products .fig-cap {
  margin: 10px 0 26px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sand);
}

/* ---------- chapter grid ---------- */
.page-products .chapter-grid {
  display: grid;
  gap: 30px;
  margin-top: 26px;
}

.page-products .chapter-note {
  border-left: 1px solid var(--line-2);
  padding-left: 18px;
  font-size: 14.5px;
  color: var(--sand);
}

.page-products .chapter-note .fig-cap {
  margin: 10px 0 16px;
}

.page-products .note-title {
  font-size: 18px;
  margin: 0 0 12px;
  color: var(--paper);
}

.page-products .note-link {
  margin-top: 14px;
}

.page-products .link-gold {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 193, 108, 0.45);
}

.page-products .link-gold:hover {
  color: var(--pulse);
  border-bottom-color: var(--pulse);
}

.page-products .inline-link {
  margin-top: 18px;
  font-size: 14.5px;
}

/* ---------- field list ---------- */
.page-products .field-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-products .field-list li {
  background: var(--ink);
  padding: 11px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  justify-content: space-between;
  font-size: 14.5px;
}

.page-products .field-val {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--sand);
}

/* ---------- sync timeline ---------- */
.page-products .sync-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0 0 0 18px;
  border-left: 1px solid var(--line-2);
}

.page-products .sync-item {
  position: relative;
  padding: 0 0 18px 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--sand);
}

.page-products .sync-item:last-child {
  padding-bottom: 0;
}

.page-products .sync-item::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pulse);
  box-shadow: 0 0 0 3px rgba(63, 224, 208, 0.14);
}

.page-products .sync-time {
  display: inline-block;
  min-width: 76px;
  margin-right: 12px;
  font-size: 15px;
  color: var(--gold);
}

.page-products .sync-text {
  display: inline;
}

/* ---------- compare ---------- */
.page-products .compare-stage {
  display: grid;
  gap: 24px;
}

.page-products .compare-visual {
  display: grid;
  gap: 16px;
}

.page-products .ring-trio {
  width: 100%;
  height: auto;
  display: block;
  max-width: 640px;
}

.page-products .trio-row {
  transform-box: view-box;
  animation: pp-drift 34s ease-in-out infinite;
}

.page-products .trio-row:nth-child(2) {
  animation-duration: 40s;
  animation-delay: 1.2s;
}

.page-products .trio-row:nth-child(3) {
  animation-duration: 28s;
  animation-delay: 2.4s;
}

@keyframes pp-drift {
  0%,
  100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(6px);
  }
}

.page-products .compare-drawer {
  border: 1px solid var(--line-nebula);
  border-radius: var(--radius);
  background: var(--ink-deep);
  box-shadow: var(--shadow);
  padding: 16px 16px 18px;
}

.page-products .compare-head {
  margin: 0 0 6px;
  font-size: 13.5px;
  color: var(--sand);
}

.page-products .compare-tally {
  color: var(--gold);
  font-size: 14px;
  margin-right: 6px;
}

.page-products .compare-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .compare-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 4px 10px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

.page-products .compare-row:last-child {
  border-bottom: 0;
}

.page-products .compare-name {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
}

.page-products .compare-row .sync-date {
  font-size: 13px;
  color: var(--gold);
}

.page-products .compare-count {
  font-size: 12.5px;
  color: var(--sand);
  text-align: right;
}

.page-products .compare-foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--sand);
}

/* ---------- subscription pills ---------- */
.page-products .sub-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
}

.page-products .sub-pills .pill {
  font-size: 13px;
  padding: 7px 12px;
}

.page-products .pill-num {
  margin-left: 6px;
  font-size: 12px;
  color: var(--gold);
}

.page-products .pill-note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--sand);
}

/* ---------- api band ---------- */
.page-products .api-band {
  margin: 24px 0 0;
}

.page-products .api-facts {
  display: grid;
  gap: 1px;
  margin-top: 24px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-products .api-fact {
  background: var(--ink-deep);
  padding: 16px 18px;
}

.page-products .api-fact p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--sand);
}

.page-products .api-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--pulse);
}

/* ---------- scenarios ---------- */
.page-products .scenario-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-products .scenario-card {
  background: var(--ink-deep);
  padding: 20px 18px;
}

.page-products .scenario-card h3 {
  font-size: 19px;
  line-height: 1.45;
  margin: 0 0 12px;
}

.page-products .scenario-card p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--sand);
}

.page-products .scenario-meta {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

/* ---------- flow ---------- */
.page-products .flow {
  margin-top: 44px;
}

.page-products .flow-title {
  font-size: 22px;
  margin: 0 0 22px;
}

.page-products .flow-band {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-2);
}

.page-products .flow-step {
  position: relative;
  padding: 26px 0 22px;
}

.page-products .flow-step::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--gold);
}

.page-products .flow-step.is-active::before {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(245, 193, 108, 0.16);
}

.page-products .flow-index {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-products .flow-step h4 {
  font-size: 19px;
  margin: 10px 0 10px;
}

.page-products .flow-step p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--sand);
}

/* ---------- closing ---------- */
.page-products .closing {
  padding: 44px 0 62px;
  border-top: 1px solid var(--line);
}

.page-products .closing h2 {
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1.24;
  margin: 0 0 16px;
}

.page-products .closing p {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--sand);
  max-width: 68ch;
}

.page-products .closing-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  margin-top: 26px;
}

.page-products .link-plain {
  color: var(--paper);
  font-size: 14.5px;
  text-decoration: none;
  border-bottom: 1px solid var(--line-2);
  padding-bottom: 2px;
}

.page-products .link-plain:hover {
  color: var(--pulse);
  border-bottom-color: var(--pulse);
}

/* ---------- tablet ---------- */
@media (min-width: 720px) {
  .page-products .svc-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .page-products .chapter-note {
    padding-left: 22px;
  }
}

/* ---------- desktop ---------- */
@media (min-width: 980px) {
  .page-products {
    font-size: 17px;
  }

  .page-products .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
  }

  .page-products .hero-visual {
    justify-content: flex-end;
  }

  .page-products .chapter {
    padding: 56px 0;
  }

  .page-products .chapter-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    column-gap: 52px;
    row-gap: 32px;
  }

  .page-products .chapter-grid.is-flipped {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  }

  .page-products .compare-stage {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    column-gap: 44px;
    align-items: start;
  }

  .page-products .compare-visual {
    gap: 20px;
  }

  .page-products .flow-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: 26px;
  }

  .page-products .flow-step {
    padding: 30px 0 12px;
  }
}

@media (min-width: 1120px) {
  .page-products .svc-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .ring-a,
  .page-products .ring-b,
  .page-products .ring-c,
  .page-products .node,
  .page-products .trio-row {
    animation: none;
  }
}