/* GEOLiNK · /design-guides/wide-voltage/ — voltage-window page
   Unique prefix: pg-wv- . No global class selectors in this file. */

/* ---- Hero: type and a measured window over an illustrative scene ---- */
.pg-wv-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(48px, 6vw, 92px) var(--gutter) clamp(44px, 5.5vw, 76px);
}
.pg-wv-hero-copy {
  max-width: 620px;
}
.pg-wv-hero-copy h1 {
  max-width: 13ch;
  margin: 0;
}
.pg-wv-hero-copy p {
  max-width: 52ch;
  margin-top: var(--space-5);
  color: var(--text-secondary);
}
.pg-wv-hero-copy > p:first-child {
  margin-top: 0;
  color: var(--accent-ink);
}
.pg-wv-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}
.pg-wv-hero-boundary {
  padding-top: var(--space-5);
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.65;
}
.pg-wv-hero-visual {
  position: relative;
  min-height: clamp(430px, 41vw, 560px);
}
.pg-wv-readout {
  position: absolute;
  z-index: 2;
  left: clamp(38px, 4vw, 58px);
  top: 5%;
  display: grid;
  gap: 4px;
  min-width: 210px;
  padding: var(--space-5) var(--space-6);
  border: 1px solid var(--line);
  background: rgba(var(--color-lab-raised-rgb), 0.9);
  box-shadow: var(--shadow-lift);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.pg-wv-readout-key {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}
.pg-wv-readout-num {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: clamp(56px, 6.2vw, 86px);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.pg-wv-readout-unit {
  margin-left: 8px;
  color: var(--accent-ink);
  font-size: 0.28em;
  letter-spacing: 0.08em;
  vertical-align: super;
}
.pg-wv-readout-note {
  color: var(--text-secondary);
  font-size: 12px;
}
.pg-wv-hero-scene {
  position: absolute;
  right: 0;
  top: 0;
  width: 78%;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-lift);
}
.pg-wv-hero-scene img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.pg-wv-hero-scene figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 10px;
  background: rgba(var(--color-graphite-deep-rgb), 0.72);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.pg-wv-rail {
  position: absolute;
  left: 0;
  bottom: 4%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 34px;
  height: 58%;
}
.pg-wv-rail::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--line-strong);
}
.pg-wv-rail-line {
  display: none;
}
.pg-wv-rail-tick {
  position: relative;
  display: block;
  padding-left: 22px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1;
}
.pg-wv-rail-tick::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 50%;
  width: 10px;
  height: 1px;
  background: var(--line-strong);
}

/* ---- Voltage axis ---- */
.pg-wv-band-notes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-8);
  list-style: none;
}
.pg-wv-band-line {
  max-width: 76ch;
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
  color: var(--text-secondary);
  font-size: 13.5px;
}
.pg-wv-axis-wrap {
  padding: clamp(18px, 3vw, 36px);
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(var(--color-white-rgb), 0.9), rgba(var(--color-ice-rgb), 0.42)),
    var(--panel-deep);
  box-shadow: var(--shadow-raised);
}
.pg-wv-axis {
  width: 100%;
  height: auto;
}
.pg-wv-axis-line {
  stroke: var(--line-strong);
  stroke-width: 1;
}
.pg-wv-axis-label {
  fill: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 11px;
}
.pg-wv-axis-wide {
  fill: rgba(var(--color-cyan-rgb), 0.16);
  stroke: var(--accent-strong);
  stroke-width: 1;
}
.pg-wv-axis-narrow {
  fill: rgba(var(--color-graphite-rgb), 0.1);
  stroke: var(--line-strong);
  stroke-width: 1;
}
.pg-wv-axis-band-label {
  fill: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
}
.pg-wv-axis-narrow-label {
  fill: var(--ink);
  font-family: var(--font-mono);
  font-size: 10px;
}
.pg-wv-axis-marker {
  stroke: var(--accent-ink);
  stroke-width: 1;
  stroke-dasharray: 3 4;
}
.pg-wv-band-note {
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
}
.pg-wv-band-note p {
  margin-top: var(--space-3);
  color: var(--text-secondary);
  font-size: 13.5px;
  line-height: 1.6;
}

/* ---- Split: what the range does not cover ---- */
.pg-wv-split-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(30px, 5vw, 68px);
  align-items: center;
}
.pg-wv-media {
  margin: 0;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lift);
}
.pg-wv-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.pg-wv-media {
  position: relative;
}
.pg-wv-media figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 10px;
  background: rgba(var(--color-graphite-deep-rgb), 0.72);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.pg-wv-split-copy h2 {
  max-width: 20ch;
  margin-top: var(--space-2);
}
.pg-wv-split-copy > p {
  max-width: 52ch;
  margin-top: var(--space-4);
  color: var(--text-secondary);
}
.pg-wv-checks {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5) var(--space-6);
  margin-top: var(--space-7);
  list-style: none;
}
.pg-wv-check {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
}
.pg-wv-check svg {
  width: 22px;
  height: 22px;
  color: var(--accent-ink);
}
.pg-wv-check h3 {
  font-size: 16px;
  line-height: 1.3;
}
.pg-wv-check p {
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.6;
}

/* ---- Model table and plates ---- */
.pg-wv-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: rgba(var(--color-white-rgb), 0.72);
  box-shadow: var(--shadow-raised);
}
.pg-wv-table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.pg-wv-table caption {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--line);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: var(--tracking-label);
  text-align: left;
  text-transform: uppercase;
}
.pg-wv-table th,
.pg-wv-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  vertical-align: top;
}
.pg-wv-table thead th {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.pg-wv-table tbody th {
  color: var(--ink);
  font-family: var(--font-mono);
  font-weight: 500;
  white-space: nowrap;
}
.pg-wv-table tbody tr:hover {
  background: rgba(var(--color-cyan-rgb), 0.05);
}
.pg-wv-plates {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-7);
  list-style: none;
}
.pg-wv-plate figure,
.pg-wv-detail-list figure {
  margin: 0;
}
.pg-wv-plate img {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  padding: 12px;
  border: 1px solid var(--line);
  background:
    radial-gradient(70% 70% at 50% 45%, rgba(var(--color-white-rgb), 0.95), transparent 70%),
    var(--panel-soft);
  object-fit: contain;
  box-shadow: var(--shadow-raised);
}
.pg-wv-plate figcaption,
.pg-wv-detail-list figcaption {
  margin-top: 6px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-align: center;
  text-transform: uppercase;
}
.pg-wv-details {
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line);
}
.pg-wv-details-head,
.pg-wv-plates-head {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}
.pg-wv-detail-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
  list-style: none;
}
.pg-wv-detail-list img {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--panel-soft);
  object-fit: contain;
}

/* ---- Process ladder ---- */
.pg-wv-flow {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}
.pg-wv-flow-svg {
  width: 110px;
  height: auto;
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}
.pg-wv-flow-line {
  stroke: var(--line-strong);
  stroke-width: 1;
  stroke-dasharray: 2 4;
}
.pg-wv-flow-node {
  fill: var(--color-lab-raised);
  stroke: var(--accent-strong);
  stroke-width: 1.5;
}
.pg-wv-flow-num {
  fill: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  text-anchor: middle;
}
.pg-wv-steps {
  list-style: none;
}
.pg-wv-step {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: var(--space-5);
  padding: var(--space-5) 0;
  border-top: 1px solid var(--line);
}
.pg-wv-step:last-child {
  border-bottom: 1px solid var(--line);
}
.pg-wv-step h3 {
  font-size: 17px;
}
.pg-wv-step p {
  color: var(--text-secondary);
  font-size: 13.5px;
  line-height: 1.6;
}

/* ---- FAQ ---- */
.pg-wv-faq-list {
  max-width: 880px;
  border-top: 1px solid var(--line);
}
.pg-wv-faq-item {
  border-bottom: 1px solid var(--line);
}
.pg-wv-faq-item summary {
  padding: var(--space-5) 44px var(--space-5) 0;
  color: var(--ink);
  cursor: pointer;
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 400;
  line-height: 1.3;
  list-style: none;
  position: relative;
}
.pg-wv-faq-item summary::-webkit-details-marker {
  display: none;
}
.pg-wv-faq-item summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 20px;
  transform: translateY(-50%);
}
.pg-wv-faq-item[open] summary::after {
  content: "−";
}
.pg-wv-faq-item p {
  max-width: 74ch;
  padding: 0 44px var(--space-5) 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.65;
}

/* ---- CTA ---- */
.pg-wv-cta {
  padding-top: 0;
}
.pg-wv-cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(28px, 4.5vw, 60px);
  align-items: center;
  padding-top: var(--space-7);
  border-top: 1px solid var(--line-strong);
}
.pg-wv-cta-copy h2 {
  max-width: 18ch;
}
.pg-wv-cta-copy p {
  max-width: 48ch;
  margin-top: var(--space-4);
  color: var(--text-secondary);
}
.pg-wv-cta-media {
  position: relative;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lift);
}
.pg-wv-cta-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.pg-wv-cta-media figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 10px;
  background: rgba(var(--color-graphite-deep-rgb), 0.72);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ---- Responsive ---- */
@media (max-width: 1020px) {
  .pg-wv-hero {
    grid-template-columns: 1fr;
  }
  .pg-wv-hero-copy {
    max-width: 720px;
  }
  .pg-wv-hero-visual {
    min-height: 440px;
    max-width: 620px;
    width: 100%;
  }
  .pg-wv-plates {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .pg-wv-detail-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .pg-wv-split-grid {
    grid-template-columns: 1fr;
  }
  .pg-wv-media {
    max-width: 560px;
  }
}
@media (max-width: 760px) {
  .pg-wv-band-notes {
    grid-template-columns: 1fr;
  }
  .pg-wv-checks {
    grid-template-columns: 1fr;
  }
  .pg-wv-flow {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: var(--space-4);
  }
  .pg-wv-flow-svg {
    width: 56px;
  }
  .pg-wv-step {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
  .pg-wv-cta-grid {
    grid-template-columns: 1fr;
  }
  .pg-wv-detail-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 520px) {
  .pg-wv-plates {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .pg-wv-hero-visual {
    min-height: 360px;
  }
  .pg-wv-hero-scene {
    width: 86%;
  }
  .pg-wv-readout {
    left: 0;
    padding: var(--space-4);
    min-width: 170px;
  }
  .pg-wv-readout-num {
    font-size: 48px;
  }
  .pg-wv-rail {
    display: none;
  }
}