/* ==========================================================================
   padmounttransformerbuyers.com — "NAMEPLATE" design system
   Mid-century American industrial signage x Swiss technical documentation.
   Reference: a 1970s GE transformer data plate. NOT a SaaS landing page.

   RULES ENFORCED HERE (see ideas.md):
   - Stamped, not floating: hairline borders + ruled frames. NO soft shadows.
   - Warning Ochre is the ONLY accent, used scarcely so it always means "act".
   - Asymmetric two-column ledger. Never a centered single-column stack.
   - Oswald (display) / Source Serif 4 (prose) / IBM Plex Mono (data).
   - Zero JavaScript. All state via :hover :focus-visible :active :target.
   ========================================================================== */

:root {
  --ground:      oklch(0.965 0.008 85);   /* aged manila paper ground */
  --ground-2:    oklch(0.935 0.010 85);   /* recessed plate fill */
  --ground-3:    oklch(0.895 0.012 82);   /* stamped label bar */
  --ink:         oklch(0.22 0.015 60);    /* warm near-black, never #000 */
  --ink-soft:    oklch(0.38 0.014 60);
  --steel:       oklch(0.42 0.012 240);   /* structural rules, secondary text */
  --steel-line:  oklch(0.78 0.008 240);   /* hairlines */
  --ochre:       oklch(0.68 0.16 62);     /* SIGNATURE — CTAs only */
  --ochre-deep:  oklch(0.58 0.15 58);
  --copper:      oklch(0.58 0.11 45);     /* value / pricing references */
  --danger:      oklch(0.52 0.19 25);     /* genuine warnings ONLY */

  --ease-out:    cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);

  --rail: 33%;
  --maxw: 1240px;
  --gut: clamp(1.1rem, 4vw, 3rem);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--ground);
  /* Weathered, not grubby: felt, not noticed. */
  background-image:
    repeating-linear-gradient(
      90deg,
      transparent 0 3px,
      oklch(0.5 0.02 70 / 0.014) 3px 4px
    ),
    radial-gradient(
      circle at 12% 6%, oklch(0.55 0.03 60 / 0.05), transparent 46%
    );
  color: var(--ink);
  font-family: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  font-size: 1.0625rem;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ---------------------------------------------------------------- type */
h1, h2, h3, h4 {
  font-family: Oswald, "Arial Narrow", Impact, sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.012em;
  line-height: 1.06;
  margin: 0;
  text-wrap: balance;
}

h1 { font-size: clamp(2.05rem, 5.2vw, 3.65rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 500; }
h3 { font-size: clamp(1.12rem, 1.9vw, 1.4rem); font-weight: 500; }
h4 {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
}

p { margin: 0 0 1.15em; }
p:last-child { margin-bottom: 0; }

a { color: var(--ink); }

/* Mechanical link: 2px ochre rule wipes in from the left. No fades. */
.lnk {
  position: relative;
  text-decoration: none;
  border-bottom: 1px solid var(--steel-line);
  padding-bottom: 1px;
}
.lnk::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: var(--ochre);
  transform: scaleX(0);
  transform-origin: left center;
}
@media (prefers-reduced-motion: no-preference) {
  .lnk::after { transition: transform 140ms var(--ease-out); }
}
.lnk:hover::after, .lnk:focus-visible::after { transform: scaleX(1); }

:where(a, button, summary, input, textarea, select):focus-visible {
  outline: 2px solid var(--ochre);
  outline-offset: 3px;
  border-radius: 1px;
}

/* Monospace data voice — spec tables, kVA figures, phone numbers, labels. */
.mono, .plate td, .plate th, .lbl, .kv, .crumbs, .tag {
  font-family: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

.lbl {
  display: block;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
}

/* ---------------------------------------------------------------- shell */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gut);
}

/* ---------------------------------------------------------------- header */
.top {
  border-bottom: 2px solid var(--ink);
  background: var(--ground);
}
.top-in {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.85rem var(--gut);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* Wordmark = stamped equipment plate proportions. */
.mark {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  margin-right: auto;
}
.mark img { width: 42px; height: 42px; display: block; flex: none; }
.mark-txt { display: block; }
.mark-1 {
  display: block;
  font-family: Oswald, sans-serif;
  font-weight: 600;
  font-size: 1.32rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  line-height: 1;
  color: var(--ink);
}
.mark-rule { height: 2px; background: var(--ochre); margin: 3px 0 3px; }
.mark-2 {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.5rem;
  letter-spacing: 0.235em;
  text-transform: uppercase;
  line-height: 1;
  color: var(--steel);
}

.top nav {
  display: flex;
  gap: 1.1rem;
  flex-wrap: wrap;
  align-items: center;
}
.top nav a {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--steel);
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}
@media (prefers-reduced-motion: no-preference) {
  .top nav a { transition: color 140ms var(--ease-out), border-color 140ms var(--ease-out); }
}
.top nav a:hover, .top nav a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ochre);
}

.top-tel {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--ink);
  border: 2px solid var(--ink);
  padding: 0.4rem 0.75rem;
  white-space: nowrap;
}
@media (prefers-reduced-motion: no-preference) {
  .top-tel { transition: background-color 180ms var(--ease-out), color 180ms var(--ease-out); }
}
.top-tel:hover, .top-tel:focus-visible { background: var(--ochre); border-color: var(--ochre); }
.top-tel:active { transform: scale(0.97); }

/* ---------------------------------------------------------------- hero */
.hero { border-bottom: 2px solid var(--ink); }
.hero-in {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(1.75rem, 4vw, 3rem) var(--gut) clamp(1.6rem, 3.5vw, 2.5rem);
  display: grid;
  grid-template-columns: 1fr var(--rail);
  gap: clamp(1.6rem, 3.5vw, 3.25rem);
  align-items: start;
}
@media (max-width: 900px) {
  .hero-in { grid-template-columns: 1fr; }
}

.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 0 0 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--steel-line);
}

/* Ochre hairline rule beneath the page title. */
.h1-rule {
  width: 108px;
  height: 3px;
  background: var(--ochre);
  margin: 1.05rem 0 1.25rem;
}

.lede {
  font-size: clamp(1.08rem, 1.5vw, 1.24rem);
  line-height: 1.62;
  max-width: 62ch;
}

/* The freight differentiator — a stamped safety-tag callout. */
.freight {
  border: 2px solid var(--ink);
  border-left: 7px solid var(--ochre);
  background: var(--ground-2);
  padding: 0.9rem 1.1rem;
  margin: 1.5rem 0 0;
  max-width: 62ch;
}
.freight .lbl { margin-bottom: 0.3rem; }
.freight p {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.55;
}

/* ---------------------------------------------------------------- data plate */
/* THE recurring motif: hairline-bordered rect, stamped-label header bar,
   tabular key/value spec rows. */
.plate {
  border: 2px solid var(--ink);
  background: var(--ground-2);
  margin: 0 0 1.5rem;
}
.plate-hd {
  background: var(--ink);
  color: var(--ground);
  padding: 0.5rem 0.8rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
}
.plate-hd span:last-child { color: var(--ochre); }
.plate-bd { padding: 0.35rem 0.8rem 0.7rem; }

.plate table { width: 100%; border-collapse: collapse; }
.plate tr { border-bottom: 1px solid var(--steel-line); }
.plate tr:last-child { border-bottom: 0; }
.plate th, .plate td {
  text-align: left;
  padding: 0.48rem 0;
  font-size: 0.78rem;
  vertical-align: top;
  line-height: 1.45;
}
.plate th {
  font-weight: 400;
  color: var(--steel);
  letter-spacing: 0.03em;
  width: 45%;
  padding-right: 0.9rem;
}
.plate td { font-weight: 500; color: var(--ink); }

/* Corner rivets — primary blocks only, max four per page. */
.rivets { position: relative; }
.rivets::before, .rivets::after {
  content: "";
  position: absolute;
  top: 6px;
  width: 3px; height: 3px;
  background: var(--steel);
  border-radius: 50%;
}
.rivets::before { left: 6px; }
.rivets::after { right: 6px; }

/* ---------------------------------------------------------------- quote form */
/* "The quote form is the product." Styled as a real RFQ document. */
.rfq {
  border: 3px solid var(--ink);
  background: var(--ground);
}
.rfq-hd {
  background: var(--ink);
  color: var(--ground);
  padding: 0.65rem 0.95rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border-bottom: 3px solid var(--ochre);
}
.rfq-bd { padding: 1rem 0.95rem 1.1rem; }
.rfq-bd > p { font-size: 0.9rem; line-height: 1.55; }

.rfq-row { display: grid; gap: 0.55rem; margin-bottom: 0.85rem; }
.rfq-row.two { grid-template-columns: 1fr 1fr; gap: 0.7rem; }
@media (max-width: 460px) { .rfq-row.two { grid-template-columns: 1fr; } }

.rfq label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--steel);
  display: block;
  margin-bottom: 0.28rem;
}
.rfq input, .rfq textarea, .rfq select {
  width: 100%;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.86rem;
  color: var(--ink);
  background: oklch(1 0 0 / 0.6);
  border: 1px solid var(--steel);
  border-radius: 0;
  padding: 0.5rem 0.6rem;
  -webkit-appearance: none;
  appearance: none;
}
.rfq select {
  background-image: linear-gradient(45deg, transparent 50%, var(--steel) 50%),
                    linear-gradient(135deg, var(--steel) 50%, transparent 50%);
  background-position: calc(100% - 15px) 51%, calc(100% - 10px) 51%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 1.9rem;
}
.rfq textarea { min-height: 84px; resize: vertical; line-height: 1.5; }
@media (prefers-reduced-motion: no-preference) {
  .rfq input, .rfq textarea, .rfq select {
    transition: border-color 180ms var(--ease-out), background-color 180ms var(--ease-out);
  }
}
.rfq input:hover, .rfq textarea:hover, .rfq select:hover { border-color: var(--ink); }
.rfq input:focus, .rfq textarea:focus, .rfq select:focus {
  border-color: var(--ochre);
  background: oklch(1 0 0 / 0.9);
  outline: 2px solid var(--ochre);
  outline-offset: 1px;
}

/* Primary CTA: mechanical press, no lift, no scale-up. */
.btn {
  display: block;
  width: 100%;
  font-family: Oswald, sans-serif;
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  text-align: center;
  text-decoration: none;
  color: var(--ink);
  background: var(--ochre);
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 0.72rem 1rem;
  cursor: pointer;
}
@media (prefers-reduced-motion: no-preference) {
  .btn { transition: background-color 160ms var(--ease-out), transform 160ms var(--ease-out); }
}
.btn:hover, .btn:focus-visible { background: var(--ochre-deep); }
.btn:active { transform: scale(0.97); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
}
.btn-ghost:hover, .btn-ghost:focus-visible { background: var(--ground-3); }

.rfq-alt {
  margin-top: 0.8rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--steel-line);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  line-height: 1.65;
  color: var(--steel);
}
.rfq-alt a { color: var(--ink); font-weight: 600; }

/* ---------------------------------------------------------------- body layout */
/* Asymmetric two-column ledger. Rail carries data; prose on the left/wide. */
.ledger {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(2rem, 4.5vw, 3.4rem) var(--gut);
  display: grid;
  grid-template-columns: 1fr var(--rail);
  gap: clamp(1.75rem, 4vw, 3.5rem);
  align-items: start;
}
@media (max-width: 900px) {
  .ledger { grid-template-columns: 1fr; }
  /* Mobile: rail collapses ABOVE the prose, quote block staying first. */
  .ledger > .rail { order: -1; }
}
.rail { position: sticky; top: 1.25rem; }
@media (max-width: 900px) { .rail { position: static; } }

/* Hanging margin label with a rule running to the page edge — drawing callout. */
.sec { margin: 0 0 2.4rem; }
.sec:last-child { margin-bottom: 0; }
.sec-hd {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--ink);
}
.sec-hd .num {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--ochre);
  flex: none;
  padding-top: 0.2rem;
}
.prose { max-width: 68ch; }
.prose h3 { margin: 1.9rem 0 0.55rem; }
.prose h3:first-child { margin-top: 0; }

/* ---------------------------------------------------------------- figure */
figure {
  margin: 0 0 1.5rem;
  border: 2px solid var(--ink);
  background: var(--ground-2);
}
figure img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: 2px solid var(--ink);
  filter: saturate(0.9) contrast(1.03);
}
figcaption {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.07em;
  color: var(--steel);
  padding: 0.5rem 0.7rem;
  line-height: 1.5;
}
.hero figure { margin-bottom: 0; }

/* ---------------------------------------------------------------- cards/grids */
.grid { display: grid; gap: 1px; background: var(--ink); border: 2px solid var(--ink); }
.grid.c2 { grid-template-columns: repeat(2, 1fr); }
.grid.c3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 760px) { .grid.c2, .grid.c3 { grid-template-columns: 1fr; } }

.cell {
  background: var(--ground);
  padding: 1rem 1.05rem 1.1rem;
  text-decoration: none;
  display: block;
  color: var(--ink);
}
@media (prefers-reduced-motion: no-preference) {
  .cell { transition: background-color 180ms var(--ease-out); }
}
a.cell:hover, a.cell:focus-visible { background: var(--ground-3); }
.cell h3 { margin: 0.3rem 0 0.4rem; }
.cell p { font-size: 0.9rem; line-height: 1.58; color: var(--ink-soft); margin: 0; }
.cell .kv {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--copper);
}

/* Dense link columns — city/state indexes. */
.cols {
  columns: 4 190px;
  column-gap: 1.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.cols li {
  break-inside: avoid;
  border-bottom: 1px solid var(--steel-line);
  padding: 0.3rem 0;
}
.cols a {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.79rem;
  text-decoration: none;
  color: var(--ink);
  display: block;
}
@media (prefers-reduced-motion: no-preference) {
  .cols a { transition: color 140ms var(--ease-out), padding-left 140ms var(--ease-out); }
}
.cols a:hover, .cols a:focus-visible { color: var(--ochre-deep); padding-left: 4px; }
.cols .pop { color: var(--steel); font-size: 0.68rem; }

/* ---------------------------------------------------------------- misc */
.crumbs {
  font-size: 0.66rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--steel);
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--steel-line);
}
.crumbs a { color: var(--steel); text-decoration: none; }
.crumbs a:hover, .crumbs a:focus-visible { color: var(--ochre-deep); }
.crumbs .sep { color: var(--steel-line); padding: 0 0.35rem; }

.tagrow { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.9rem 0 0; }
.tag {
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--steel);
  padding: 0.24rem 0.5rem;
  color: var(--steel);
  text-decoration: none;
}
@media (prefers-reduced-motion: no-preference) {
  .tag { transition: background-color 160ms var(--ease-out), color 160ms var(--ease-out), border-color 160ms var(--ease-out); }
}
a.tag:hover, a.tag:focus-visible { background: var(--ink); color: var(--ground); border-color: var(--ink); }

/* Genuine warnings ONLY — PCB / oil / EPA. Never decorative. */
.warn {
  border: 2px solid var(--danger);
  border-left: 7px solid var(--danger);
  background: oklch(0.52 0.19 25 / 0.045);
  padding: 0.85rem 1rem;
  margin: 1.5rem 0;
}
.warn .lbl { color: var(--danger); margin-bottom: 0.3rem; }
.warn p { font-size: 0.93rem; margin: 0; line-height: 1.58; }

/* FAQ — CSS-only disclosure via <details>. No JS. */
.faq { border: 2px solid var(--ink); background: var(--ground-2); }
.faq details { border-bottom: 1px solid var(--steel-line); }
.faq details:last-child { border-bottom: 0; }
.faq summary {
  cursor: pointer;
  padding: 0.8rem 1rem;
  font-family: Oswald, sans-serif;
  font-weight: 500;
  font-size: 1.02rem;
  text-transform: uppercase;
  letter-spacing: 0.015em;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: "IBM Plex Mono", monospace;
  font-size: 1.15rem;
  color: var(--ochre);
  flex: none;
  line-height: 1;
}
.faq details[open] summary::after { content: "\2212"; }
@media (prefers-reduced-motion: no-preference) {
  .faq summary { transition: background-color 180ms var(--ease-out); }
}
.faq summary:hover { background: var(--ground-3); }
.faq .ans { padding: 0 1rem 0.95rem; font-size: 0.95rem; line-height: 1.66; }

/* Stat strip — numbers do the selling. */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--ink);
  border-block: 2px solid var(--ink);
}
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat { background: var(--ground); padding: 1rem var(--gut); }
.stat b {
  font-family: Oswald, sans-serif;
  font-weight: 600;
  font-size: clamp(1.35rem, 2.6vw, 1.95rem);
  display: block;
  line-height: 1.1;
  letter-spacing: 0.01em;
}
.stat span {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.63rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
  display: block;
  margin-top: 0.2rem;
}
.stats-wrap { max-width: var(--maxw); margin: 0 auto; }

/* Full-bleed CTA band. */
.band {
  border-block: 2px solid var(--ink);
  background: var(--ground-2);
}
.band-in {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(1.6rem, 3.5vw, 2.6rem) var(--gut);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: center;
}
@media (max-width: 760px) { .band-in { grid-template-columns: 1fr; } }
.band h2 { margin-bottom: 0.5rem; }
.band p { max-width: 58ch; margin: 0; }
.band-act { display: flex; flex-direction: column; gap: 0.6rem; min-width: 232px; }

/* ---------------------------------------------------------------- footer */
.foot {
  border-top: 2px solid var(--ink);
  background: var(--ground-3);
  margin-top: 0;
}
.foot-in {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(1.75rem, 3.5vw, 2.75rem) var(--gut) 1.5rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
}
@media (max-width: 900px) { .foot-in { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .foot-in { grid-template-columns: 1fr; } }
.foot h4 { margin-bottom: 0.7rem; color: var(--ink); }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { margin-bottom: 0.38rem; }
.foot a {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  text-decoration: none;
  color: var(--ink-soft);
}
.foot a:hover, .foot a:focus-visible { color: var(--ochre-deep); }
.foot p { font-size: 0.86rem; color: var(--ink-soft); }
.foot-bar {
  border-top: 1px solid var(--steel);
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.9rem var(--gut) 1.5rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--steel);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ochre);
  color: var(--ink);
  padding: 0.6rem 1rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  z-index: 50;
}
.skip:focus { left: 0; }

@media print {
  .top nav, .rfq, .band, .foot ul { display: none; }
  body { background: #fff; }
}
/* ---------------------------------------------------------------- terms strip */
/* ------------------------------------------------------- layout corrections */
/* Section headers live inside .ledger/.sec, but the numbered header needs the
   same gutter as the content beneath it. Without this the "01" hangs off the
   left edge of the viewport. */
.sec > .sec-hd {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}
/* When a section's body is a .ledger (which supplies its own gutter), the
   header must not double-pad. */
.sec > .ledger { padding-top: 1.1rem; }

/* Sections whose body is NOT a .ledger need their own gutter wrapper. */
.sec > .prose,
.sec > .grid,
.sec > .faq,
.sec > .cols {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}
/* .grid draws its own ink border, so padding must sit outside it. */
.sec > .grid {
  box-sizing: content-box;
  max-width: calc(var(--maxw) - 2 * var(--gut));
}

/* Hero photograph: let the image keep a natural landscape ratio so the
   transformer body is actually visible. A hard pixel cap was cropping the
   1800x1012 source down to its roofline only. */
.hero figure img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  height: auto;
  object-fit: cover;
  object-position: center 58%;
}
.hero figure { margin-bottom: 1.1rem; }

/* Stat strip is full-bleed by design, but the cells must line up with the
   content gutter rather than the raw viewport edge. */
.stats {
  padding-inline: max(0px, calc((100vw - var(--maxw)) / 2));
}
.stat { padding-inline: clamp(1rem, 2.2vw, 1.6rem); }
.stats > .stat:first-child { padding-left: var(--gut); }

/* Hero / inline button row. */
.acts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.4rem;
}
/* .btn defaults to width:100% for the RFQ form and the CTA band rail. Inside a
   hero row it must size to its own label instead. */
.acts .btn {
  flex: 0 0 auto;
  width: auto;
  padding-inline: 1.6rem;
}
@media (max-width: 460px) {
  .acts { flex-direction: column; align-items: stretch; }
  .acts .btn { width: 100%; }
}

/* Three stamped cells: freight, payment timing, testing. The payment cell is
   the one that gets the ochre, because paying before loading is the claim
   nobody else in this trade makes. */
.promises {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 2px solid var(--ink);
  background: var(--ground-2);
  margin: 1.75rem 0 0;
}
.promises .promise {
  padding: 0.85rem 1.05rem;
  border-right: 1px solid var(--steel-line);
}
.promises .promise:last-child { border-right: 0; }
.promises .lbl { margin-bottom: 0.28rem; }
.promises b {
  display: block;
  font-family: Oswald, "Arial Narrow", sans-serif;
  font-weight: 600;
  font-size: 1.01rem;
  letter-spacing: 0.005em;
  line-height: 1.22;
  text-transform: uppercase;
}
.promises .promise:nth-child(2) {
  background: var(--ochre);
  box-shadow: inset 0 0 0 1px oklch(1 0 0 / 0.25);
}
.promises .promise:nth-child(2) .lbl { color: oklch(0.28 0.04 60); }
.promises .promise:nth-child(2) b { color: var(--ink); }
@media (max-width: 660px) {
  .promises { grid-template-columns: 1fr; }
  .promises .promise {
    border-right: 0;
    border-bottom: 1px solid var(--steel-line);
  }
  .promises .promise:last-child { border-bottom: 0; }
}

/* Payment variant of the callout block: inverted label bar, ink edge. */
.freight.pay { border-left-color: var(--ink); }
.freight.pay .lbl { color: var(--ink); font-weight: 600; }

/* ---------------------------------------------------------------- guarantees */
.guars { margin: 1.5rem 0 0; }
.guar {
  display: grid;
  grid-template-columns: 3.4rem 1fr;
  gap: 1rem;
  padding: 1.15rem 0;
  border-top: 1px solid var(--steel-line);
}
.guar:last-child { border-bottom: 1px solid var(--steel-line); }
.guar .num {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ochre-deep);
  letter-spacing: 0.06em;
  padding-top: 0.25rem;
}
.guar h3 {
  font-family: Oswald, "Arial Narrow", sans-serif;
  font-weight: 600;
  font-size: 1.07rem;
  letter-spacing: 0.005em;
  text-transform: uppercase;
  margin: 0 0 0.35rem;
}
.guar p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.72;
  color: var(--ink-soft);
}
@media (max-width: 660px) {
  .guar { grid-template-columns: 1fr; gap: 0.3rem; }
}