.page-products {
  --pp-mirror: 46%;
  --pp-spine: 8%;
  position: relative;
  overflow-x: clip;
  color: var(--nm-snow);
  background-color: var(--nm-deep);
  background-image:
    linear-gradient(var(--nm-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--nm-grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
  padding-block: clamp(24px, 4vw, 46px) clamp(56px, 8vw, 104px);
  font-family: var(--font-body);
}

.page-products .breadcrumb a {
  color: var(--nm-ice);
  text-decoration: none;
}

.page-products .breadcrumb a:hover {
  text-decoration: underline;
}

.page-products .eyebrow {
  color: var(--nm-ice);
  letter-spacing: 0.2em;
}

.page-products .page-head {
  position: relative;
  padding-block: clamp(18px, 3vw, 30px) clamp(8px, 2vw, 16px);
}

.page-products .page-head h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5.2vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0.4em 0 0.5em;
  max-width: 18ch;
}

.page-products .page-head .lede {
  max-width: 64ch;
  margin: 0;
  color: var(--nm-frost);
  font-size: 1rem;
  line-height: 1.85;
}

.page-products .page-head::after {
  content: "";
  display: block;
  width: min(100%, 360px);
  height: 3px;
  margin-top: clamp(20px, 3vw, 32px);
  background: linear-gradient(90deg, var(--nm-maple), var(--nm-copper) 55%, var(--nm-ice));
}

.page-products .page-head__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-products .section {
  margin-top: clamp(44px, 6vw, 84px);
}

.page-products .section__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.26;
  letter-spacing: -0.012em;
  margin: 0;
}

.page-products .section__sub {
  max-width: 62ch;
  margin: 10px 0 0;
  color: var(--nm-rock);
  font-size: 0.92rem;
  line-height: 1.78;
}

.page-products .plate {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--nm-line);
  background: var(--nm-sea);
}

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

.page-products .plate::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(95, 208, 220, 0.16);
  pointer-events: none;
}

.page-products .plate--wide { aspect-ratio: 16 / 10; }
.page-products .plate--3x2 { aspect-ratio: 3 / 2; }
.page-products .plate--6x7 { aspect-ratio: 6 / 7; }
.page-products .plate--14x9 { aspect-ratio: 14 / 9; }

.page-products .overview__figure {
  margin: clamp(22px, 3vw, 36px) 0 0;
}

.page-products .overview__figure figcaption,
.page-products .choose__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  line-height: 1.7;
  color: var(--nm-rock);
}

.page-products .class-grid {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--nm-line-soft);
  border: 1px solid var(--nm-line-soft);
}

.page-products .class-cell {
  background: var(--nm-deep);
  border-top: 2px solid var(--nm-line);
  padding: 15px 16px 18px;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-products .class-cell:hover {
  background: var(--nm-sea);
  border-top-color: var(--nm-ice);
}

.page-products .class-cell__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--nm-ice);
}

.page-products .class-cell__name {
  margin: 7px 0 5px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--nm-snow);
}

.page-products .class-cell__desc {
  margin: 0;
  font-size: 0.83rem;
  line-height: 1.68;
  color: var(--nm-rock);
}

.page-products .code-guide {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
  margin-top: clamp(28px, 4vw, 48px);
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--nm-line);
  border-left: 3px solid var(--nm-copper);
  background: linear-gradient(135deg, rgba(27, 74, 107, 0.42), rgba(6, 23, 37, 0.18));
}

.page-products .code-guide__title {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: 0.01em;
}

.page-products .code-guide__text {
  margin: 0;
  max-width: 58ch;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--nm-frost);
}

.page-products .code-guide__figure {
  margin: 0;
}

.page-products .code-guide__tip {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--nm-rock);
}

.page-products .code-legend {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
}

.page-products .code-legend__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
}

.page-products .code-legend__row dt {
  margin: 0;
}

.page-products .code-legend__row dd {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--nm-frost);
}

.page-products .code-legend__row dd strong {
  color: var(--nm-snow);
  font-weight: 700;
}

.page-products .code-tag {
  user-select: all;
  cursor: pointer;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-products .code-tag:hover {
  border-color: var(--nm-copper);
  color: var(--nm-copper);
}

.page-products .mirror {
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 4vw, 40px);
  background: var(--nm-line);
  border: 1px solid var(--nm-line);
}

.page-products .mirror__spine {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 12px;
  background: var(--nm-sea);
}

.page-products .mirror__spine-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--nm-ice);
}

.page-products .pane {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(18px, 3vw, 30px);
  background: var(--nm-deep);
}

.page-products .pane--std { border-top: 3px solid var(--nm-maple); }
.page-products .pane--pro { border-top: 3px solid var(--nm-copper); }

.page-products .pane__head {
  display: grid;
  gap: 8px;
}

.page-products .pane__badge {
  justify-self: start;
  padding: 4px 8px;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.22em;
  color: var(--nm-frost);
}

.page-products .pane__badge--std {
  border-color: var(--nm-maple);
  background: rgba(200, 64, 47, 0.14);
}

.page-products .pane__badge--pro {
  border-color: var(--nm-copper);
  background: rgba(215, 162, 76, 0.14);
}

.page-products .pane__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: 0.01em;
}

.page-products .pane__lead {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--nm-ice);
}

.page-products .pane__points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .pane__points li {
  position: relative;
  padding-left: 18px;
  font-size: 0.89rem;
  line-height: 1.72;
  color: var(--nm-frost);
}

.page-products .pane__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--nm-ice);
}

.page-products .tree-group {
  border: 1px solid var(--nm-line-soft);
  background: rgba(14, 43, 69, 0.5);
}

.page-products .tree-group > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 13px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--nm-frost);
}

.page-products .tree-group > summary::-webkit-details-marker {
  display: none;
}

.page-products .tree-group > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--nm-ice);
}

.page-products .tree-group[open] > summary {
  border-bottom: 1px solid var(--nm-line-soft);
}

.page-products .tree-group[open] > summary::after {
  content: "−";
  color: var(--nm-copper);
}

.page-products .tree-group ul {
  list-style: none;
  margin: 0;
  padding: 12px 14px;
  display: grid;
  gap: 8px;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--nm-frost);
}

.page-products .condensed {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--nm-line-soft);
  border: 1px solid var(--nm-line-soft);
}

.page-products .condensed li {
  display: grid;
  grid-template-columns: 1.8em minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 11px 13px;
  background: var(--nm-deep);
  font-size: 0.86rem;
  line-height: 1.68;
  color: var(--nm-frost);
}

.page-products .condensed li span:first-child {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--nm-copper);
}

.page-products .diff__scroll {
  margin-top: clamp(20px, 3vw, 32px);
  overflow-x: auto;
  border: 1px solid var(--nm-line);
  background: var(--nm-deep);
}

.page-products .diff-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.79rem;
  line-height: 1.65;
}

.page-products .diff-table caption {
  caption-side: bottom;
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-body);
  font-size: 0.76rem;
  color: var(--nm-rock);
}

.page-products .diff-table th,
.page-products .diff-table td {
  padding: 11px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--nm-line-soft);
}

.page-products .diff-table thead th {
  background: var(--nm-sea);
  color: var(--nm-frost);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.page-products .diff-table thead th.diff-table__std {
  border-bottom: 2px solid var(--nm-maple);
}

.page-products .diff-table thead th.diff-table__pro {
  border-bottom: 2px solid var(--nm-copper);
}

.page-products .diff-table tbody th {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.84rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
  color: var(--nm-snow);
  background: var(--nm-deep);
}

.page-products .diff-table tbody tr:nth-child(even) td {
  background: rgba(14, 43, 69, 0.4);
}

.page-products .diff-table tbody tr:hover td {
  background: rgba(27, 74, 107, 0.42);
  transition: background var(--t-fast) var(--ease);
}

.page-products .diff-table tbody tr:hover th {
  background: var(--nm-polar);
  transition: background var(--t-fast) var(--ease);
}

.page-products .choose__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(22px, 3vw, 36px);
}

.page-products .choose-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  border: 1px solid var(--nm-line);
  background: var(--nm-sea);
  box-shadow: var(--shadow-card);
}

.page-products .choose-card--std { border-top: 2px solid var(--nm-maple); }
.page-products .choose-card--pro { border-top: 2px solid var(--nm-copper); }

.page-products .choose-card__q {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--nm-snow);
}

.page-products .choose-card__a {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--nm-ice);
}

.page-products .choose-card__note {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--nm-rock);
}

.page-products .choose-card__link {
  margin-top: auto;
  padding-top: 6px;
  align-self: flex-start;
  font-size: 0.84rem;
  text-decoration: none;
  color: var(--nm-copper);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast) var(--ease);
}

.page-products .choose-card__link:hover {
  border-bottom-color: var(--nm-copper);
}

.page-products .choose__figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

.page-products .cadence__body {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-products .cadence__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .cadence__list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--nm-frost);
}

.page-products .cadence__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 12px;
  height: 2px;
  background: var(--nm-tundra);
}

.page-products .cadence__list strong {
  color: var(--nm-snow);
  font-weight: 700;
}

.page-products .note {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--nm-ice);
  font-size: 0.86rem;
  line-height: 1.76;
  color: var(--nm-rock);
}

.page-products .note p {
  margin: 0 0 10px;
}

.page-products .note p:last-child {
  margin-bottom: 0;
}

.page-products .note a {
  color: var(--nm-copper);
  text-decoration: none;
  border-bottom: 1px solid rgba(215, 162, 76, 0.45);
}

.page-products .note a:hover {
  border-bottom-color: var(--nm-copper);
}

.page-products .closing {
  margin-top: clamp(44px, 6vw, 80px);
  padding-top: clamp(24px, 4vw, 40px);
  border-top: 1px solid var(--nm-line);
}

.page-products .closing__text {
  max-width: 66ch;
  margin: 12px 0 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--nm-frost);
}

.page-products .closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 3vw, 26px);
}

@media (min-width: 560px) {
  .page-products .class-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-products .choose__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-products .choose-card:nth-child(even) {
    margin-top: 32px;
  }
}

@media (min-width: 760px) {
  .page-products .diff-table tbody th,
  .page-products .diff-table thead th:first-child {
    position: sticky;
    left: 0;
    z-index: 2;
    background: var(--nm-deep);
  }

  .page-products .diff-table thead th:first-child {
    z-index: 3;
    background: var(--nm-sea);
  }
}

@media (min-width: 860px) {
  .page-products .code-guide {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-products .class-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .cadence__body {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-products .mirror {
    grid-template-columns: var(--pp-mirror) var(--pp-spine) var(--pp-mirror);
    gap: 0;
  }

  .page-products .mirror__spine {
    padding: 20px 0;
  }

  .page-products .mirror__spine-label {
    writing-mode: vertical-rl;
    letter-spacing: 0.42em;
  }
}

@media (min-width: 1180px) {
  .page-products .class-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .class-cell,
  .page-products .code-tag,
  .page-products .choose-card__link,
  .page-products .diff-table tbody tr:hover td,
  .page-products .diff-table tbody tr:hover th {
    transition: none;
  }
}

@media print {
  .page-products {
    background: #ffffff;
    color: #14202b;
    padding-block: 0;
  }

  .page-products .plate,
  .page-products .page-head__actions,
  .page-products .closing__actions {
    display: none;
  }

  .page-products .mirror {
    grid-template-columns: 1fr 1fr;
    background: none;
    border-color: #b9c6d0;
  }

  .page-products .mirror__spine {
    display: none;
  }

  .page-products .pane,
  .page-products .class-cell,
  .page-products .choose-card,
  .page-products .diff__scroll {
    background: #ffffff;
    box-shadow: none;
    border-color: #b9c6d0;
  }

  .page-products .class-cell__name,
  .page-products .pane__title,
  .page-products .choose-card__q,
  .page-products .cadence__list strong,
  .page-products .diff-table tbody th {
    color: #14202b;
  }

  .page-products .class-cell__desc,
  .page-products .pane__points li,
  .page-products .section__sub,
  .page-products .cadence__list li {
    color: #3c4b57;
  }
}
<<<END>>>