/* ============================================================================
   MARKETING: page-level components
   Hero and drawings, numbers, the parts index, splits, process steps,
   sectors, trade panel, quote band, page heroes, product pages, FAQ,
   articles, contact, thanks, errors.
   ============================================================================ */

/* ============================================================================
   1. DRAWINGS (inline SVG technical illustration)
   Every drawing is line art in currentColor with a handful of classes. The
   palette switches with the surface: ink on paper, light on slate bands.
   ============================================================================ */

.drawing {
  --dw-fill: var(--white);
  --dw-bg: var(--white);
  --dw-muted: var(--slate-500);
  --dw-accent: var(--blue-500);
  --dw-ok: var(--status-success-500);
  width: 100%;
  height: auto;
  color: var(--slate-800);
  overflow: visible;
}

.section--band .drawing {
  --dw-fill: var(--slate-700);
  --dw-bg: var(--slate-800);
  --dw-muted: var(--slate-300);
  --dw-accent: var(--blue-400);
  --dw-ok: #5cc98a;
  color: var(--slate-100);
}

.dw-frame {
  stroke: currentColor;
  stroke-width: 1;
  opacity: 0.22;
}

.dw-line,
.dw-line path,
.dw-line rect,
.dw-line circle {
  stroke: currentColor;
  stroke-width: 1.5;
}

.dw-fine,
.dw-fine path,
.dw-fine rect,
.dw-fine circle {
  stroke: currentColor;
  stroke-width: 1;
  opacity: 0.55;
}

.dw-solid {
  fill: var(--dw-fill);
  stroke: currentColor;
  stroke-width: 1.5;
}

.dw-centre {
  stroke: var(--dw-accent);
  stroke-width: 1;
  stroke-dasharray: 16 4 3 4;
  opacity: 0.6;
}

.dw-dim {
  stroke: currentColor;
  stroke-width: 1;
  opacity: 0.5;
}

.dw-dim-tick {
  stroke: currentColor;
  stroke-width: 1.5;
}

.dw-label-bg {
  fill: var(--dw-bg);
}

.dw-text {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  fill: var(--dw-muted);
}

.dw-text--strong {
  fill: currentColor;
}

.dw-accent,
.dw-accent path {
  stroke: var(--dw-accent);
  stroke-width: 2;
  stroke-linecap: round;
}

.dw-accent-fill,
.dw-accent-fill circle,
.dw-accent-fill rect,
.dw-led,
.dw-pulse {
  fill: var(--dw-accent);
}

.dw-ok {
  fill: var(--dw-ok);
}

.dw-signal {
  fill: var(--signal-500);
}

.dw-leader {
  stroke: var(--dw-accent);
  stroke-width: 1;
}

.dw-callout {
  fill: var(--dw-bg);
  stroke: var(--dw-accent);
  stroke-width: 1.5;
}

.dw-callout__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  fill: currentColor;
}

.dw-callout__num--sm {
  font-size: 10px;
}

/* A drawing on its own sheet: white panel, faint drafting grid, ticks */
.sheet-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: clamp(16px, 3vw, 32px);
  background-color: var(--white);
  background-image:
    linear-gradient(rgba(62, 132, 197, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 132, 197, 0.07) 1px, transparent 1px);
  background-size: var(--grid-cell) var(--grid-cell);
  background-position: -1px -1px;
  border: var(--rule-width) solid var(--rule);
  color: var(--slate-800);
  text-decoration: none;
}

/* A drawing's intrinsic width (its viewBox, 320px for family art) would
   otherwise set the sheet's minimum width and overflow a 320px screen */
.sheet-figure > * {
  min-width: 0;
}

.sheet-figure__caption {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  padding-top: var(--space-3);
  border-top: var(--rule-width) solid var(--rule);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.sheet-figure__caption > span {
  color: var(--accent-strong);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============================================================================
   2. HOME: INTRO AND PLATE
   A light opening, not a slate split: the headline runs wide, and the
   hardware itself is the hero, photographed and annotated like a plate in
   a catalogue.
   ============================================================================ */

.photo,
.photo__img {
  display: block;
  width: 100%;
  height: auto;
}

.intro {
  padding: clamp(40px, 6vw, 88px) 0 clamp(48px, 7vw, 96px);
  background-image:
    linear-gradient(rgba(62, 132, 197, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 132, 197, 0.06) 1px, transparent 1px);
  background-size: var(--grid-cell) var(--grid-cell);
  background-position: center top;
  border-bottom: var(--rule-width) solid var(--rule);
}

.intro__head {
  display: grid;
  gap: var(--space-8);
  align-items: end;
  margin-bottom: clamp(32px, 5vw, 56px);
}

.intro__title {
  font-size: var(--text-display-xl);
  font-stretch: var(--stretch-display);
  line-height: var(--leading-tight);
  letter-spacing: -0.03em;
}

.intro__title .text-accent {
  display: block;
}

.intro__aside {
  display: grid;
  gap: var(--space-6);
  padding-left: var(--space-5);
  border-left: 3px solid var(--accent);
}

.intro__lead {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-muted);
}

.intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@media (min-width: 1024px) {
  .intro__head {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    gap: var(--space-12);
  }
}

/* The plate: photograph with drawn marks beside its legend */
.plate {
  margin: 0;
  display: grid;
  background: var(--white);
  border: var(--rule-width) solid var(--rule);
}

.plate__photo {
  position: relative;
  background: #e4e4ea;
  overflow: hidden;
}

.plate__marks {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.mark__ring {
  stroke: var(--blue-600);
  stroke-width: 3;
  stroke-dasharray: 6 6;
}

.mark__dot {
  fill: var(--blue-600);
}

.mark__leader {
  stroke: var(--blue-600);
  stroke-width: 3;
}

.mark__bubble {
  fill: var(--white);
  stroke: var(--blue-600);
  stroke-width: 4;
}

.mark__num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 500;
  fill: var(--slate-900);
}

.plate__legend {
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 3vw, 36px);
}

.plate__label {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  padding-bottom: var(--space-4);
  border-bottom: var(--rule-width-strong) solid var(--rule-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.plate__label > span {
  color: var(--accent-strong);
  font-weight: var(--font-medium);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.legend {
  margin: 0;
  padding: 0;
  list-style: none;
}

.legend__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: var(--rule-width) dashed var(--rule-strong);
}

.legend__num {
  grid-row: span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 2px solid var(--blue-600);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--slate-900);
}

.legend__title {
  font-weight: var(--font-bold);
  font-stretch: var(--stretch-heading);
  color: var(--text-strong);
}

.legend__body {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* The four headline figures, as the plate's own specification */
.plate__spec {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: auto 0 0;
  padding-top: var(--space-6);
}

.plate__spec-item {
  padding: var(--space-3) var(--space-3) var(--space-3) 0;
  border-top: var(--rule-width-strong) solid var(--rule-ink);
  min-width: 0;
}

.plate__spec-item:nth-child(even) {
  padding-left: var(--space-4);
  border-left: var(--rule-width) solid var(--rule);
}

.plate__spec dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.plate__spec dd {
  margin: var(--space-1) 0 0;
  font-size: var(--text-2xl);
  font-weight: var(--font-heavy);
  font-stretch: var(--stretch-display);
  line-height: 1.1;
  color: var(--text-strong);
  font-variant-numeric: tabular-nums;
}

@media (min-width: 900px) {
  .plate {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .plate__legend {
    border-left: var(--rule-width) solid var(--rule);
  }
}

/* ============================================================================
   3. HOME: THE SYSTEM AS A CATALOGUE
   A parts list, not a card grid: one ruled row per family with its
   photograph, line, name and three figures from its specification.
   ============================================================================ */

.catalogue {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--rule-width-strong) solid var(--rule-ink);
}

.catalogue__item {
  border-bottom: var(--rule-width) solid var(--rule);
}

.catalogue__row {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) auto;
  grid-template-areas:
    "photo body arrow";
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4) var(--space-2);
  color: var(--text);
  text-decoration: none;
  transition: background-color var(--duration-base) var(--ease);
}

.catalogue__row:hover {
  background: var(--paper-50);
  color: var(--text);
}

.catalogue__index {
  display: none;
  grid-area: index;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  color: var(--accent-strong);
}

.catalogue__photo {
  grid-area: photo;
  display: block;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: var(--rule-width) solid var(--rule);
  background: #ececf0;
}

.catalogue__photo .photo,
.catalogue__photo .photo__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.catalogue__drawing {
  display: flex;
  align-items: center;
  height: 100%;
  padding: var(--space-2);
  background-color: var(--white);
  background-image:
    linear-gradient(rgba(62, 132, 197, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 132, 197, 0.07) 1px, transparent 1px);
  background-size: 12px 12px;
}

.catalogue__body {
  grid-area: body;
  display: grid;
  gap: 2px;
  min-width: 0;
}

.catalogue__kicker {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

.catalogue__name {
  font-size: var(--text-lg);
  overflow-wrap: anywhere;
  font-weight: var(--font-heavy);
  font-stretch: var(--stretch-display);
  line-height: var(--leading-snug);
  color: var(--text-strong);
}

.catalogue__tagline {
  display: none;
  color: var(--text-muted);
}

.catalogue__facts {
  display: none;
  grid-area: facts;
}

.catalogue__fact {
  display: grid;
  grid-template-columns: 8em 1fr;
  gap: var(--space-3);
  padding: 3px 0;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--text-strong);
}

.catalogue__fact-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: var(--font-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-top: 2px;
}

.catalogue__arrow {
  grid-area: arrow;
  color: var(--link);
  transition: transform var(--duration-base) var(--ease);
}

.catalogue__row:hover .catalogue__arrow {
  transform: translateX(4px);
}

.catalogue__row:hover .catalogue__name {
  color: var(--link);
}

@media (min-width: 640px) {
  .catalogue__row {
    grid-template-columns: 140px minmax(0, 1fr) auto;
    gap: var(--space-6);
    padding: var(--space-5) var(--space-3);
  }

  .catalogue__tagline {
    display: block;
  }

  .catalogue__name {
    font-size: var(--text-xl);
  }
}

@media (min-width: 1024px) {
  .catalogue__row {
    grid-template-columns: 56px 168px minmax(0, 1.1fr) minmax(0, 1fr) auto;
    grid-template-areas: "index photo body facts arrow";
    gap: var(--space-8);
  }

  .catalogue__index,
  .catalogue__facts {
    display: block;
  }

  .catalogue__name {
    font-size: var(--text-2xl);
  }
}

/* ============================================================================
   4. HOME: MECHANICAL COMPARED, INDUSTRY BANDS, TRADE, CLOSING
   ============================================================================ */

.compare {
  display: grid;
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.compare__intro {
  display: grid;
  gap: var(--space-5);
}

.compare__figure {
  margin-top: var(--space-4);
}

.compare__table-wrap {
  overflow-x: auto;
}

.compare__note {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.compare__table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border: var(--rule-width) solid var(--rule);
}

.compare__table th,
.compare__table td {
  padding: var(--space-4);
  text-align: left;
  vertical-align: top;
  border-bottom: var(--rule-width) solid var(--rule);
}

.compare__table thead th {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: var(--rule-width-strong) solid var(--rule-ink);
}

.compare__table tbody th {
  width: 30%;
  font-weight: var(--font-bold);
  font-stretch: var(--stretch-heading);
  color: var(--text-strong);
}

.compare__table td {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.compare__table .compare__ours {
  background: var(--blue-50);
  color: var(--text-strong);
  font-weight: var(--font-semibold);
}

.compare__table thead .compare__ours {
  background: var(--blue-600);
  color: var(--white);
}

.compare__table tbody tr:last-child th,
.compare__table tbody tr:last-child td {
  border-bottom: 0;
}

/* Phones: each situation becomes a small block, mechanical above CyberLock */
@media (max-width: 639px) {
  .compare__table,
  .compare__table tbody,
  .compare__table tr,
  .compare__table th,
  .compare__table td {
    display: block;
    width: auto;
  }

  .compare__table thead {
    display: none;
  }

  .compare__table tbody th {
    width: auto;
    padding-bottom: var(--space-2);
    border-bottom: 0;
  }

  .compare__table td {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
    border-bottom: 0;
  }

  .compare__table td::before {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
  }

  .compare__table td:not(.compare__ours)::before {
    content: "Mechanical";
  }

  .compare__table td.compare__ours::before {
    content: "CyberLock";
    color: var(--accent-strong);
  }

  .compare__table tr {
    border-bottom: var(--rule-width) solid var(--rule);
  }

  .compare__table tbody tr:last-child {
    border-bottom: 0;
  }
}

@media (min-width: 1024px) {
  .compare {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: var(--space-16);
  }
}

/* Industry bands: panoramic photographs with the name set over a slate fade */
.panos {
  display: grid;
  gap: var(--space-3);
}

.pano {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 140px;
  overflow: hidden;
  color: var(--white);
  text-decoration: none;
  background: var(--slate-800);
}

.pano__photo,
.pano__photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pano__photo img {
  transition: transform var(--duration-slow) var(--ease);
}

.pano:hover .pano__photo img {
  transform: scale(1.03);
}

.pano::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(24, 38, 47, 0.94) 0%, rgba(24, 38, 47, 0.8) 45%, rgba(24, 38, 47, 0.15) 100%);
}

.pano__body {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px var(--space-4);
  padding: var(--space-5) var(--space-6);
}

.pano__index {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--blue-300);
  padding-top: 6px;
}

.pano__name {
  font-size: var(--text-2xl);
  font-weight: var(--font-heavy);
  font-stretch: var(--stretch-display);
  line-height: 1.15;
}

.pano__line {
  font-size: var(--text-sm);
  color: var(--slate-100);
}

.pano__arrow {
  position: relative;
  z-index: 2;
  margin: 0 var(--space-6) 0 auto;
  flex: none;
  box-sizing: content-box;
  padding: 10px;
  border-radius: var(--radius-full);
  background: var(--slate-900);
  transition: transform var(--duration-base) var(--ease);
}

.pano:hover .pano__arrow {
  transform: translateX(4px);
}

@media (min-width: 900px) {
  .panos {
    grid-template-columns: 1fr 1fr;
  }

  .pano {
    min-height: 168px;
  }
}

/* Trade: a photograph of the job beside the pitch */
.trade-split {
  display: grid;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

.trade-split__photo {
  margin: 0;
  overflow: hidden;
  border: var(--rule-width) solid var(--rule);
  aspect-ratio: 4 / 3;
}

.trade-split__photo .photo,
.trade-split__photo .photo__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 70%;
}

.trade-split__copy {
  display: grid;
  gap: var(--space-5);
  justify-items: start;
}

.trade-split__copy .eyebrow {
  margin-bottom: 0;
}

.trade-split__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

@media (min-width: 900px) {
  .trade-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .trade-split__photo {
    aspect-ratio: 1;
  }
}

/* Closing: a light contact sheet with the phone number as the headline */
.closing {
  padding: var(--section-y) 0;
  background: var(--white);
  border-top: var(--rule-width-strong) solid var(--rule-ink);
}

.closing__inner {
  display: grid;
  gap: var(--space-10);
  align-items: end;
}

.closing__title {
  font-size: var(--text-display);
  font-stretch: var(--stretch-display);
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
  max-width: 14ch;
}

.closing__body {
  margin-top: var(--space-5);
  max-width: 48ch;
  font-size: var(--text-lg);
  color: var(--text-muted);
}

.closing__routes {
  display: grid;
  gap: var(--space-5);
  justify-items: start;
}

.closing__phone,
.closing__email {
  display: grid;
  gap: var(--space-1);
  min-height: 44px;
  color: var(--text-strong);
  text-decoration: none;
}

.closing__phone {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 1.2rem + 2.4vw, 3rem);
  font-weight: var(--font-medium);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.closing__email {
  font-weight: var(--font-semibold);
  overflow-wrap: anywhere;
}

.closing__phone:hover,
.closing__email:hover {
  color: var(--link);
}

.closing__route-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

@media (min-width: 1024px) {
  .closing__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  }

  .closing__routes {
    padding-left: var(--space-10);
    border-left: var(--rule-width) solid var(--rule);
  }
}

/* ============================================================================
   5. SPLITS AND CHECKLISTS
   ============================================================================ */

.split {
  display: grid;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

.split__copy {
  display: grid;
  gap: var(--space-5);
  justify-items: start;
}

.split--even {
  align-items: start;
}

@media (min-width: 900px) {
  .split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }

  .split--even {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

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

.checklist__item {
  position: relative;
  padding-left: var(--space-8);
  color: var(--text);
}

/* A drawn tick in a square, the mark a surveyor leaves on a schedule */
.checklist__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2em;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-sm);
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 18 18'%3E%3Cpath d='M4.5 9.5l3 3 6-7' fill='none' stroke='%232d6aa3' stroke-width='2'/%3E%3C/svg%3E") center / 16px no-repeat;
}

.checklist--large {
  gap: var(--space-5);
}

.checklist--large .checklist__item {
  padding-bottom: var(--space-5);
  border-bottom: var(--rule-width) dashed var(--rule-strong);
  font-size: var(--text-md);
}

.checklist--large .checklist__item strong {
  color: var(--text-strong);
}

/* ============================================================================
   6. PROCESS STEPS (on slate bands)
   ============================================================================ */

.steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.step {
  position: relative;
  display: grid;
  gap: var(--space-2);
  padding: var(--space-6) 0 var(--space-6) var(--space-16);
  border-top: var(--rule-width) solid var(--rule-on-dark-strong);
}

.step__num {
  position: absolute;
  left: 0;
  top: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--blue-300);
}

.step__title {
  font-size: var(--text-xl);
  font-stretch: var(--stretch-heading);
}

.step__body {
  color: var(--on-dark-muted);
}

@media (min-width: 900px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
  }

  .step {
    padding: var(--space-12) 0 0;
    border-top-width: 2px;
  }

  /* The first segment of each rule is drawn in the accent */
  .step::before {
    content: "";
    position: absolute;
    top: -2px;
    left: 0;
    width: 48px;
    height: 2px;
    background: var(--blue-400);
  }

  .step__num {
    top: var(--space-4);
  }
}

/* ============================================================================
   7. SECTORS
   ============================================================================ */

.sector__icon {
  width: 40px;
  height: 40px;
  color: var(--slate-800);
}

.sector__icon-accent {
  stroke: var(--accent);
}

/* Industries page: one sheet per sector */
.sector-list {
  display: grid;
  gap: var(--space-8);
}

.sector {
  display: grid;
  gap: var(--space-6);
  padding: clamp(24px, 4vw, 48px);
  background: var(--white);
  border: var(--rule-width) solid var(--rule);
  scroll-margin-top: calc(var(--nav-height) + var(--space-6));
}

.sector__photo {
  display: block;
  margin: calc(clamp(24px, 4vw, 48px) * -1) calc(clamp(24px, 4vw, 48px) * -1) 0;
  /* A height, not an aspect ratio: with a minimum height an aspect ratio
     would widen the box past a 320px screen */
  height: clamp(120px, 22vw, 300px);
  overflow: hidden;
  background: var(--slate-800);
}

.sector__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sector__header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2) var(--space-5);
  align-items: center;
}

.sector__mark {
  grid-row: span 2;
  display: inline-flex;
  padding: var(--space-3);
  border: var(--rule-width) solid var(--rule-strong);
  border-radius: var(--radius-md);
  background: var(--paper-50);
}

.sector__index {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.1em;
  color: var(--accent-strong);
}

.sector__name {
  font-size: var(--text-display-sm);
  font-stretch: var(--stretch-display);
  line-height: 1.05;
}

.sector__summary {
  grid-column: 1 / -1;
  margin-top: var(--space-3);
  max-width: 62ch;
  font-size: var(--text-lg);
  color: var(--text-muted);
}

.sector__body {
  display: grid;
  gap: var(--space-5);
}

.sector__block {
  display: grid;
  gap: var(--space-3);
  align-content: start;
  padding-top: var(--space-4);
  border-top: var(--rule-width-strong) solid var(--rule-ink);
}

.sector__block--answer {
  border-top-color: var(--accent);
}

.sector__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  font-stretch: 100%;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.sector__families {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-2) 0 0;
  padding: 0;
  list-style: none;
}

.sector__families .tag {
  min-height: 36px;
  text-decoration: none;
}

.sector__families .tag:hover {
  border-color: var(--blue-600);
  color: var(--blue-800);
}

@media (min-width: 900px) {
  .sector {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: var(--space-10);
  }

  .sector__photo {
    grid-column: 1 / -1;
  }

  .sector__body {
    grid-template-columns: 1fr 1fr;
  }
}

.also {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-3) var(--space-6);
  padding: var(--space-6) 0;
  border-top: var(--rule-width) dashed var(--rule-strong);
  border-bottom: var(--rule-width) dashed var(--rule-strong);
}

.also__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.also__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-6);
  margin: 0;
  padding: 0;
  list-style: none;
}

.also__item {
  font-weight: var(--font-bold);
  font-stretch: var(--stretch-heading);
  color: var(--text-strong);
}

/* ============================================================================
   8. TRADE PANEL AND QUOTE BAND
   ============================================================================ */

.trade-panel {
  display: grid;
  gap: var(--space-8);
  padding: clamp(28px, 5vw, 56px);
  background: var(--white);
  border: var(--rule-width) solid var(--rule);
}

.trade-panel__copy {
  display: grid;
  gap: var(--space-2);
}

.trade-panel__copy .eyebrow {
  margin-bottom: var(--space-2);
}

.trade-panel__title {
  font-size: var(--text-display-sm);
  font-stretch: var(--stretch-display);
  line-height: 1.08;
  max-width: 22ch;
}

.trade-panel__body {
  margin-top: var(--space-3);
  max-width: 58ch;
  font-size: var(--text-md);
  color: var(--text-muted);
}

.trade-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-content: start;
}

@media (min-width: 1024px) {
  .trade-panel {
    grid-template-columns: 1fr auto;
    align-items: end;
  }

  .trade-panel__actions {
    flex-direction: column;
  }
}

.section-spacer {
  height: var(--section-y);
}

.quote-band {
  padding: clamp(56px, 8vw, 104px) 0;
}

.quote-band__inner {
  display: grid;
  gap: var(--space-8);
  align-items: end;
}

.quote-band__title {
  font-size: var(--text-display);
  font-stretch: var(--stretch-display);
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
  max-width: 16ch;
}

.quote-band__body {
  margin-top: var(--space-5);
  max-width: 52ch;
  font-size: var(--text-lg);
  color: var(--on-dark-muted);
}

.quote-band__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4) var(--space-8);
}

.section--band .quote-band__phone,
.quote-band__phone {
  display: inline-flex;
  flex-direction: column;
  min-height: 44px;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--font-medium);
  color: var(--white);
  text-decoration: none;
}

.section--band .quote-band__phone:hover {
  color: var(--blue-300);
}

.quote-band__phone-label {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
}

@media (min-width: 1024px) {
  .quote-band__inner {
    grid-template-columns: 1fr auto;
  }
}

/* ============================================================================
   9. PAGE HEROES (interior pages)
   ============================================================================ */

.page-hero {
  position: relative;
  padding: clamp(48px, 7vw, 96px) 0 clamp(40px, 6vw, 72px);
  background-image:
    linear-gradient(rgba(62, 132, 197, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 132, 197, 0.06) 1px, transparent 1px);
  background-size: var(--grid-cell) var(--grid-cell);
  background-position: center top;
}

/* The grid fades out before the content below it */
.page-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 60%;
  background: linear-gradient(to bottom, rgba(245, 243, 238, 0), var(--paper-100));
  pointer-events: none;
}

.page-hero > .container {
  position: relative;
  z-index: 1;
}

.page-hero__title {
  font-size: var(--text-display);
  font-stretch: var(--stretch-display);
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
  max-width: 18ch;
}

.page-hero__tagline {
  margin-top: var(--space-5);
  max-width: 40ch;
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  font-stretch: var(--stretch-heading);
  line-height: var(--leading-snug);
  color: var(--text-strong);
}

.page-hero__lead {
  margin-top: var(--space-5);
  max-width: 62ch;
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-muted);
}

.page-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.page-hero--compact {
  padding-bottom: clamp(32px, 4vw, 48px);
}

.page-hero__inner {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
  align-items: center;
}

.page-hero__art {
  max-width: 560px;
}

@media (min-width: 900px) {
  .page-hero--split .page-hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  }

  .page-hero__art {
    max-width: none;
  }
}

/* In-page index: jump links styled as a drawing's sheet list */
.index-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

.index-nav__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0 var(--space-4);
  border: var(--rule-width) solid var(--rule-strong);
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--text-strong);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-decoration: none;
}

.index-nav__link:hover {
  border-color: var(--slate-800);
  color: var(--text-strong);
}

.index-nav__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent-strong);
}

/* ============================================================================
   10. PRODUCT PAGES
   ============================================================================ */

/* Products index: alternating rows of drawing and specification */
.family-list {
  display: grid;
  gap: clamp(48px, 7vw, 96px);
}

.family-row {
  display: grid;
  /* An explicit shrinkable column: an implicit one sizes to the widest
     child's content and overflows at 320px */
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-8);
  align-items: center;
  scroll-margin-top: calc(var(--nav-height) + var(--space-6));
}

.family-row__art .drawing {
  max-width: 420px;
  margin: 0 auto;
}

.family-row__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  justify-items: start;
}

.family-row__body .eyebrow {
  margin-bottom: var(--space-1);
}

.family-row__title {
  font-size: var(--text-display-sm);
  overflow-wrap: anywhere;
  font-stretch: var(--stretch-display);
  line-height: 1.05;
}

.family-row__title a {
  color: inherit;
  text-decoration: none;
}

.family-row__title a:hover {
  color: var(--link);
}

.family-row__tagline {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  font-stretch: var(--stretch-heading);
  color: var(--text-strong);
}

.family-row__summary {
  max-width: 60ch;
  color: var(--text-muted);
}

.family-row__spec {
  width: 100%;
  margin-top: var(--space-3);
}

.family-row__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

@media (min-width: 900px) {
  .family-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(40px, 6vw, 80px);
  }

  .family-row--flip .family-row__art {
    order: 2;
  }
}

/* A product photograph on its own plate: the photo-led counterpart of
   .sheet-figure, with the same ticks and caption */
.plate-photo {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--white);
  border: var(--rule-width) solid var(--rule);
  color: var(--slate-800);
  text-decoration: none;
}

.plate-photo .photo {
  aspect-ratio: 4 / 5;
  background: #ececf0;
  overflow: hidden;
}

.plate-photo .photo__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.plate-photo .sheet-figure__caption {
  padding: var(--space-2) var(--space-2) var(--space-1);
}

/* Detail layout: narrative and features, with a sticky specification card */
.detail-layout {
  display: grid;
  gap: var(--space-12);
}

.detail-layout__aside {
  min-width: 0;
}

.detail-prose {
  display: grid;
  gap: var(--space-5);
  max-width: 66ch;
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
}

.detail-prose p:first-child {
  font-size: var(--text-lg);
  color: var(--text-strong);
}

.section--band .detail-prose p:first-child {
  color: var(--white);
}

.detail-heading {
  margin: var(--space-16) 0 var(--space-6);
  padding-top: var(--space-4);
  border-top: var(--rule-width-strong) solid var(--rule-ink);
  font-size: var(--text-2xl);
  font-stretch: var(--stretch-display);
}

@media (min-width: 1024px) {
  .detail-layout {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: var(--space-16);
    align-items: start;
  }

  .detail-layout__aside {
    position: sticky;
    top: calc(var(--nav-height) + var(--space-6));
  }
}

.spec-card {
  display: grid;
  gap: var(--space-5);
  padding: var(--space-6);
  background: var(--paper-50);
  border: var(--rule-width) solid var(--rule);
}

.spec-card__drawing {
  margin: calc(var(--space-6) * -1) calc(var(--space-6) * -1) 0;
  padding: var(--space-5) var(--space-6);
  background-color: var(--white);
  background-image:
    linear-gradient(rgba(62, 132, 197, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 132, 197, 0.07) 1px, transparent 1px);
  background-size: var(--grid-cell) var(--grid-cell);
  border-bottom: var(--rule-width) solid var(--rule);
}

.spec-card__download {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
}

.spec-card__title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

.spec-card__note {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* Features: numbered capability notes, ruled rather than boxed */
.features {
  display: grid;
  gap: 0 var(--space-8);
}

.feature {
  position: relative;
  display: grid;
  gap: var(--space-2);
  align-content: start;
  padding: var(--space-5) 0 var(--space-6) var(--space-12);
  border-top: var(--rule-width) solid var(--rule-strong);
}

.feature__num {
  position: absolute;
  left: 0;
  top: var(--space-5);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-strong);
}

.feature__title {
  font-size: var(--text-lg);
  font-stretch: var(--stretch-heading);
}

.feature__body {
  color: var(--text-muted);
}

@media (min-width: 640px) {
  .features {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .features--three {
    grid-template-columns: repeat(3, 1fr);
  }

  .features--four {
    grid-template-columns: repeat(4, 1fr);
  }

  .features--three .feature,
  .features--four .feature {
    padding: var(--space-12) 0 0;
  }
}

/* Benefits: what the family does for each kind of person, side by side */
.benefits {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-16);
}

.benefit {
  padding: var(--space-6);
  background: var(--paper-50);
  border: var(--rule-width) solid var(--rule);
  border-top: 3px solid var(--slate-800);
}

.benefit:nth-child(2) {
  border-top-color: var(--accent);
}

.benefit__audience {
  margin-bottom: var(--space-4);
  font-size: var(--text-xl);
  font-stretch: var(--stretch-display);
}

.benefit__points {
  margin: 0;
  display: grid;
  gap: var(--space-4);
}

.benefit__title {
  font-weight: var(--font-bold);
  color: var(--text-strong);
}

.benefit__body {
  margin: 2px 0 0;
  font-size: var(--text-sm);
  color: var(--text-muted);
}

@media (min-width: 640px) {
  .benefits {
    grid-template-columns: 1fr 1fr;
  }
}

/* Gallery: further photographs of the family in use */
.gallery {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr 1fr;
}

.gallery__item {
  margin: 0;
  overflow: hidden;
  border: var(--rule-width) solid var(--rule);
  background: #ececf0;
  aspect-ratio: 4 / 5;
}

.gallery__item .photo,
.gallery__item .photo__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* A wide photograph (the annotated cabinet diagram) spans the row, uncropped */
.gallery__item--wide {
  grid-column: 1 / -1;
  aspect-ratio: auto;
}

.gallery__item--wide .photo__img {
  height: auto;
  object-fit: contain;
}

@media (min-width: 900px) {
  .gallery {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Variants: models and formats, coded like sub-assemblies */
.variants {
  display: grid;
  gap: var(--space-4);
}

.variant {
  display: grid;
  gap: var(--space-2);
  align-content: start;
  padding: var(--space-5);
  background: var(--paper-50);
  border: var(--rule-width) solid var(--rule);
  border-left: 3px solid var(--accent);
}

.variant__code {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.08em;
  color: var(--accent-strong);
}

.variant__title {
  font-size: var(--text-lg);
  font-stretch: var(--stretch-heading);
}

.variant__body {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

@media (min-width: 640px) {
  .variants {
    grid-template-columns: 1fr 1fr;
  }
}

/* FAQ: native details elements, no script */
.faq-layout {
  display: grid;
  gap: var(--space-10);
}

.faq-layout__intro {
  display: grid;
  gap: var(--space-5);
  align-content: start;
}

.faq {
  border-top: var(--rule-width-strong) solid var(--rule-ink);
}

.faq__item {
  border-bottom: var(--rule-width) solid var(--rule-strong);
}

.faq__question {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 64px;
  padding: var(--space-4) var(--space-12) var(--space-4) 0;
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  font-stretch: var(--stretch-heading);
  color: var(--text-strong);
  cursor: pointer;
  list-style: none;
}

.faq__question::-webkit-details-marker {
  display: none;
}

/* Plus that turns to minus: two bars, one rotates away */
.faq__question::before,
.faq__question::after {
  content: "";
  position: absolute;
  right: var(--space-3);
  top: 50%;
  width: 16px;
  height: 2px;
  background: var(--accent-strong);
  transition: transform var(--duration-base) var(--ease);
}

.faq__question::after {
  transform: rotate(90deg);
}

.faq__item[open] .faq__question::after {
  transform: rotate(0deg);
}

.faq__question:hover {
  color: var(--link);
}

.faq__answer {
  max-width: 66ch;
  padding: 0 var(--space-12) var(--space-6) 0;
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
}

@media (min-width: 1024px) {
  .faq-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
    gap: var(--space-16);
  }
}

/* Siblings: the rest of the system, as a parts list */
.siblings {
  display: grid;
  border-top: var(--rule-width-strong) solid var(--rule-ink);
}

.sibling {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "index kicker arrow"
    "index name arrow";
  gap: 0 var(--space-5);
  align-items: center;
  min-height: 72px;
  padding: var(--space-4) var(--space-2);
  border-bottom: var(--rule-width) solid var(--rule);
  color: var(--text);
  text-decoration: none;
  transition: background-color var(--duration-base) var(--ease);
}

.sibling:hover {
  background: var(--paper-50);
  color: var(--text);
}

.sibling__index {
  grid-area: index;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--accent-strong);
}

.sibling__kicker {
  grid-area: kicker;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.sibling__name {
  grid-area: name;
  font-size: var(--text-lg);
  font-weight: var(--font-heavy);
  font-stretch: var(--stretch-heading);
  color: var(--text-strong);
}

.sibling__arrow {
  grid-area: arrow;
  color: var(--link);
  transition: transform var(--duration-base) var(--ease);
}

.sibling:hover .sibling__arrow {
  transform: translateX(4px);
}

@media (min-width: 900px) {
  .siblings {
    grid-template-columns: repeat(4, 1fr);
  }

  .sibling {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "index arrow"
      "kicker kicker"
      "name name";
    gap: var(--space-2);
    align-content: start;
    padding: var(--space-5);
    border-bottom: 0;
    border-right: var(--rule-width) solid var(--rule);
  }

  .sibling:last-child {
    border-right: 0;
  }

  .sibling__index {
    margin-bottom: var(--space-6);
  }
}

/* Awards on the about page: one ruled block per year */
.awards {
  display: grid;
  gap: var(--space-6);
}

.awards__year {
  display: grid;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: var(--rule-width-strong) solid var(--rule-ink);
}

.awards__label {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  font-stretch: 100%;
  color: var(--accent-strong);
}

.awards__list {
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.awards__list strong {
  color: var(--text-strong);
}

/* ============================================================================
   11. ARTICLES
   ============================================================================ */

.article-grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .article-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .article-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: var(--rule-width) solid var(--rule);
  border-radius: var(--radius-md);
  color: var(--text);
  text-decoration: none;
  overflow: hidden;
  transition: border-color var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease), transform var(--duration-base) var(--ease);
}

.article-card:hover {
  color: var(--text);
  border-color: var(--slate-800);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.article-card__media {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--slate-800);
  border-bottom: var(--rule-width) solid var(--rule);
}

.article-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* No thumbnail: a slate sheet with the drafting grid and the accent rule */
.article-card__placeholder {
  position: absolute;
  inset: 0;
  background-color: var(--slate-800);
  background-image:
    linear-gradient(90deg, var(--blue-500) 0 48px, transparent 48px),
    linear-gradient(rgba(62, 132, 197, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 132, 197, 0.14) 1px, transparent 1px);
  background-size: 100% 3px, var(--grid-cell) var(--grid-cell), var(--grid-cell) var(--grid-cell);
  background-position: 24px calc(100% - 24px), 0 0, 0 0;
  background-repeat: no-repeat, repeat, repeat;
}

.article-card__format {
  position: absolute;
  left: var(--space-4);
  top: var(--space-4);
  padding: 4px var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--white);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: var(--font-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate-900);
}

.article-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-5) var(--space-6);
}

.article-card__title {
  font-size: var(--text-lg);
  font-stretch: var(--stretch-heading);
}

.article-card__excerpt {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.article-card__more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
  font-weight: var(--font-bold);
  color: var(--link);
}

.category-grid {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
  .category-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.category-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-4);
  align-items: center;
  min-height: 88px;
  padding: var(--space-4) var(--space-5);
  background: var(--white);
  border: var(--rule-width) solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--text);
  text-decoration: none;
  transition: border-color var(--duration-base) var(--ease), background-color var(--duration-base) var(--ease);
}

.category-card:hover {
  color: var(--text);
  border-color: var(--slate-800);
  border-left-color: var(--accent);
}

.category-card__image {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.category-card__body {
  grid-column: 2;
  min-width: 0;
}

.category-card__title {
  font-size: var(--text-lg);
  font-stretch: var(--stretch-heading);
}

.category-card__desc {
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.category-card__arrow {
  grid-column: 3;
  color: var(--link);
}

/* Article page */
.page-hero--article .page-hero__title--article {
  font-size: var(--text-display-sm);
  max-width: none;
}

.article__body {
  padding-bottom: var(--section-y);
}

.article__note {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.article__footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: var(--rule-width-strong) solid var(--rule-ink);
}

.media-frame {
  margin: 0;
  overflow: hidden;
  background: var(--slate-900);
  border: var(--rule-width) solid var(--rule);
  border-radius: var(--radius-md);
}

.media-frame__video,
.media-frame__image {
  width: 100%;
}

.download-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--white);
  border: var(--rule-width) solid var(--rule);
  border-left: 3px solid var(--accent);
}

.download-card__title {
  font-weight: var(--font-bold);
  color: var(--text-strong);
}

.download-card__meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ============================================================================
   12. CONTACT AND THANKS
   ============================================================================ */

.contact-layout {
  display: grid;
  gap: var(--space-10);
  align-items: start;
}

@media (min-width: 1024px) {
  .contact-layout {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: var(--space-12);
  }
}

.form-sheet {
  border-radius: 0;
  padding: clamp(20px, 4vw, 40px);
}

.form-sheet__label {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: var(--rule-width-strong) solid var(--rule-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

.contact-aside {
  display: grid;
  border-top: var(--rule-width-strong) solid var(--rule-ink);
}

.contact-aside__block {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-5) 0;
  border-bottom: var(--rule-width) solid var(--rule);
}

.contact-aside__title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  font-stretch: 100%;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.contact-aside__phone {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--font-medium);
  color: var(--text-strong);
  text-decoration: none;
}

.contact-aside__phone:hover {
  color: var(--link);
}

.contact-aside__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-weight: var(--font-semibold);
  overflow-wrap: anywhere;
}

.contact-aside__body {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.thanks {
  display: grid;
  justify-items: start;
}

.thanks__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-6);
  border-radius: var(--radius-md);
  background: var(--blue-600);
  color: var(--white);
}

/* ============================================================================
   13. ERRORS
   ============================================================================ */

/* The error layout has no footer content to speak of: the slate panel
   fills the viewport between header and footer */
.site-main:has(> .error-page) {
  display: flex;
  flex-direction: column;
}

.error-page {
  flex: 1;
  display: flex;
  align-items: center;
  padding: clamp(56px, 10vw, 128px) 0;
}

.error-page__inner {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

.error-page__code {
  font-size: clamp(5rem, 3rem + 12vw, 11rem);
  font-weight: var(--font-heavy);
  font-stretch: 125%;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 2px var(--blue-400);
}

.error-page__title {
  font-size: var(--text-display-sm);
  font-stretch: var(--stretch-display);
}

.error-page__message {
  margin-top: var(--space-4);
  max-width: 52ch;
  font-size: var(--text-lg);
  color: var(--on-dark-muted);
}

.error-page__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

@media (min-width: 900px) {
  .error-page__inner {
    grid-template-columns: auto 1fr;
    gap: var(--space-16);
  }
}