.masthead {
  position: relative;
  z-index: 20;
  background: var(--paper);
  transition: transform 240ms var(--ease-mechanical);
}

.masthead.is-condensed {
  position: fixed;
  inset: 0 0 auto;
  box-shadow: 0 1px 0 var(--rule);
}

.masthead.is-hidden { transform: translateY(-105%); }

.utility-bar {
  border-bottom: var(--hairline);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
}

.utility-bar .shell {
  display: flex;
  min-height: 2.25rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.utility-bar a { text-underline-offset: 0.24em; }

.nav-row { border-bottom: var(--hairline); }

.nav-row .shell {
  display: flex;
  min-height: 5.4rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.wordmark {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  font-variation-settings: "opsz" 64, "SOFT" 55, "WONK" 1;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1;
  text-decoration: none;
}

.desktop-nav ul,
.footer-nav ul {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.desktop-nav a {
  padding-block: 0.9rem;
  font-size: 0.73rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
}

.desktop-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--clay);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.55em;
}

.menu-toggle {
  display: none;
  min-width: 4.5rem;
  min-height: 2.75rem;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: right;
}

.mobile-menu {
  position: fixed;
  z-index: 50;
  inset: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 1.25rem;
  background: var(--paper);
}

.mobile-menu[hidden] { display: none; }

.mobile-menu-head {
  display: flex;
  min-height: 3.5rem;
  align-items: center;
  justify-content: space-between;
  border-bottom: var(--hairline);
}

.menu-close {
  min-width: 4.5rem;
  min-height: 2.75rem;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: right;
}

.mobile-menu nav { align-self: center; }

.mobile-menu ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.mobile-menu nav a {
  display: block;
  padding: 0.7rem 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 9vw, 3rem);
  line-height: 1.05;
  text-decoration: none;
}

.mobile-menu-foot {
  display: flex;
  min-height: 3.5rem;
  align-items: center;
  border-top: var(--hairline);
}

.hero { border-bottom: var(--hairline); }

.hero-grid {
  display: grid;
  min-height: min(46rem, calc(100vh - 7.7rem));
  grid-template-columns: minmax(0, 0.9fr) minmax(32rem, 1.1fr);
  align-items: stretch;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-7) var(--space-7) var(--space-7) max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter)));
}

.hero-copy h1 { max-width: 12ch; }

.hero-copy .standfirst {
  max-width: 36rem;
  margin-top: var(--space-5);
  font-size: var(--step-1);
}

.hero-source {
  max-width: 38rem;
  margin-top: var(--space-3);
  color: color-mix(in srgb, var(--ink) 72%, transparent);
  font-size: 0.75rem;
  line-height: 1.45;
}

.hero-copy .text-link {
  align-self: flex-start;
  margin-top: var(--space-5);
  font-weight: 650;
}

.page-hero {
  border-bottom: var(--hairline);
}

.page-hero-grid {
  display: grid;
  min-height: min(43rem, calc(100vh - 7.7rem));
  grid-template-columns: minmax(0, 0.9fr) minmax(32rem, 1.1fr);
}

.page-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-7) var(--space-7) var(--space-7) max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter)));
}

.page-hero-copy h1 { max-width: 11ch; }

.page-hero-copy .standfirst {
  max-width: 38rem;
  margin-top: var(--space-5);
  font-size: var(--step-1);
}

.page-hero-copy .source-note {
  max-width: 38rem;
  margin-top: var(--space-3);
  color: color-mix(in srgb, var(--ink) 72%, transparent);
  font-size: 0.75rem;
  line-height: 1.45;
}

.page-hero-copy .text-link {
  align-self: flex-start;
  margin-top: var(--space-5);
  font-weight: 650;
}

.index-hero {
  border-bottom: var(--hairline);
}

.index-hero-grid {
  display: grid;
  min-height: 28rem;
  grid-template-columns: minmax(0, 0.9fr) minmax(32rem, 1.1fr);
}

.index-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-7) var(--space-7) var(--space-7) max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter)));
}

.index-hero h1 { max-width: 9ch; }

.index-hero .standfirst {
  max-width: 44rem;
  margin-top: var(--space-5);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
}

.index-hero .crop-index {
  min-height: 28rem;
  background: var(--ink);
}

.index-hero .crop-index svg {
  width: 100%;
  height: 100%;
  min-height: 28rem;
}

.editorial-hero {
  padding-block: clamp(6rem, 11vw, 10rem);
  border-bottom: var(--hairline);
}

.editorial-hero-grid {
  display: grid;
  grid-template-columns: minmax(22rem, 0.9fr) minmax(26rem, 1.1fr);
  gap: var(--space-7);
  align-items: end;
}

.editorial-hero h1 { max-width: 11ch; }

.editorial-hero .standfirst {
  max-width: 42rem;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
}

.attic-figure {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: var(--paper-2);
  border-left: var(--hairline);
}

.attic-figure svg {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 38rem;
  object-fit: cover;
}

.attic-figure figcaption {
  position: absolute;
  right: var(--space-4);
  bottom: var(--space-3);
  left: var(--space-4);
  padding-top: var(--space-2);
  border-top: 1px solid rgb(246 241 232 / 60%);
  color: #f6f1e8;
  font-size: 0.75rem;
  line-height: 1.45;
}

.page-hero .attic-figure svg {
  width: 125%;
  height: 116%;
  transform: translate(-10%, -6%);
}

.page-hero .attic-figure.crop-insulation svg {
  width: 145%;
  height: 132%;
  transform: translate(-16%, -15%);
}

.page-hero .attic-figure.crop-removal svg {
  width: 152%;
  height: 136%;
  transform: translate(-20%, -13%);
}

.crop-insulation .attic-svg .insulation-layer {
  filter: saturate(1.12) brightness(1.08);
}

.crop-removal .attic-svg .insulation-layer {
  filter: saturate(0.58) brightness(0.82);
  opacity: 0.86;
}

.crop-removal .attic-svg .heat-arrow { opacity: 0.46; }

.attic-svg .thermal-flat { stop-color: var(--cool); }
.attic-svg .thermal-mid { animation: thermal-mid var(--motion-resolve) var(--ease-mechanical) both; }
.attic-svg .thermal-hot { animation: thermal-hot var(--motion-resolve) var(--ease-mechanical) both; }
.attic-svg .heat-arrow {
  animation: arrow-resolve var(--motion-resolve) var(--ease-mechanical) both;
}

@keyframes thermal-mid { from { stop-color: var(--cool); } to { stop-color: var(--clay); } }
@keyframes thermal-hot { from { stop-color: var(--cool); } to { stop-color: var(--rust); } }
@keyframes arrow-resolve { from { opacity: 0; transform: translateY(18px); } to { opacity: 0.78; transform: none; } }

.content-section { padding-block: var(--space-8); }
.content-section.banded { background: var(--paper-2); }

.section-intro {
  display: grid;
  grid-template-columns: minmax(18rem, 0.9fr) minmax(24rem, 1.1fr);
  gap: var(--space-7);
  align-items: start;
}

.section-intro .body-copy { font-size: var(--step-1); }

.evidence-rail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: var(--space-7);
  border-top: var(--hairline);
  border-bottom: var(--hairline);
}

.evidence-item {
  min-width: 0;
  padding: var(--space-5);
}

.evidence-item + .evidence-item { border-left: var(--hairline); }

.evidence-figure {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5rem);
  font-variant-numeric: tabular-nums;
  font-variation-settings: "opsz" 110, "SOFT" 25, "WONK" 1;
  line-height: 0.95;
}

.evidence-label { margin-top: var(--space-3); line-height: 1.35; }

.evidence-source {
  margin-top: var(--space-4);
  color: color-mix(in srgb, var(--ink) 72%, transparent);
  font-size: 0.73rem;
  line-height: 1.45;
}

.services-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  margin-bottom: var(--space-6);
}

.services-head p { align-self: end; max-width: 32rem; font-size: var(--step-1); }

.spec-rows { border-top: var(--hairline); }

.spec-row {
  display: grid;
  grid-template-columns: minmax(15rem, 0.7fr) minmax(22rem, 1.3fr) auto;
  gap: var(--space-5);
  align-items: center;
  min-height: 10rem;
  padding-block: var(--space-5);
  border-bottom: var(--hairline);
}

.spec-row h3 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
.spec-row p { max-width: 44rem; }
.spec-row .text-link { white-space: nowrap; }

.numbered-rows { border-top: var(--hairline); }

.numbered-row {
  display: grid;
  grid-template-columns: minmax(7.5rem, 0.25fr) minmax(15rem, 0.65fr) minmax(23rem, 1.1fr);
  gap: var(--space-5);
  align-items: start;
  padding-block: var(--space-5);
  border-bottom: var(--hairline);
}

.row-number {
  padding-top: 0.55rem;
  color: var(--cool);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  font-weight: 650;
  letter-spacing: 0.14em;
  line-height: 1.2;
  text-transform: uppercase;
}

.numbered-row h3 { font-size: clamp(1.75rem, 3vw, 2.4rem); }
.numbered-row p { max-width: 48rem; }

.reading-section .section-intro {
  grid-template-columns: minmax(20rem, 0.8fr) minmax(28rem, 1.2fr);
}

.reading-section .body-copy {
  max-width: 62ch;
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
}

.section-lead {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  margin-bottom: var(--space-6);
}

.section-lead p {
  align-self: end;
  max-width: 36rem;
  font-size: var(--step-1);
}

.decline-section {
  border-block: var(--hairline);
}

.decline-section .section-intro { align-items: center; }

.candour-section {
  padding-block: clamp(6rem, 12vw, 10rem);
  background: #12303c;
  color: var(--on-dark);
}

.candour-section .shell {
  display: grid;
  grid-template-columns: minmax(20rem, 0.8fr) minmax(28rem, 1.2fr);
  gap: var(--space-7);
  align-items: start;
}

.candour-section h2 {
  max-width: 10ch;
  font-size: clamp(3rem, 6vw, 5rem);
}

.candour-section p {
  max-width: 52ch;
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  line-height: 1.55;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(20rem, 0.75fr) minmax(30rem, 1.25fr);
  gap: var(--space-7);
  align-items: start;
}

.contact-aside {
  display: grid;
  gap: var(--space-6);
}

.contact-aside section {
  padding-top: var(--space-4);
  border-top: var(--hairline);
}

.contact-aside h2 { font-size: var(--step-3); }
.contact-aside p { margin-top: var(--space-3); }

.phone-link {
  display: inline-block;
  margin-top: var(--space-4);
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  text-decoration-color: var(--clay);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.2em;
}

.quote-form {
  padding: var(--space-6);
  border: 1px solid var(--rule-strong);
}

.quote-form h2 { margin-bottom: var(--space-3); }
.form-intro { max-width: 55ch; }

.form-note {
  margin-top: var(--space-3);
  color: color-mix(in srgb, var(--ink) 72%, transparent);
  font-size: 0.82rem;
}

.form-fields {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-6);
}

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

.field label {
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.field input,
.field textarea {
  width: 100%;
  min-height: 3.25rem;
  padding: 0.8rem 0;
  border: 0;
  border-bottom: 1px solid var(--rule-strong);
  border-radius: 0;
  background: transparent;
  font-size: var(--step-0);
}

.field textarea { min-height: 10rem; resize: vertical; }
.field input:focus,
.field textarea:focus { border-bottom-color: var(--clay); outline: 3px solid var(--clay); outline-offset: 4px; }
.field [aria-invalid="true"] { border-bottom: 2px solid var(--rust); }

.field-error {
  min-height: 1.4em;
  color: var(--rust);
  font-size: 0.8rem;
  line-height: 1.4;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.form-status {
  max-width: 38rem;
  padding: var(--space-4);
  border-left: 4px solid var(--clay);
  background: var(--paper-2);
}

.form-status[hidden] { display: none; }
.form-status a { font-weight: 650; }

.legal-hero {
  padding-block: clamp(5rem, 9vw, 8rem);
  border-bottom: var(--hairline);
}

.legal-hero h1 { max-width: 12ch; }

.legal-content {
  width: min(100%, 54rem);
  margin-inline: auto;
  padding: var(--space-8) var(--gutter);
}

.legal-section {
  padding-block: var(--space-5);
  border-top: var(--hairline);
}

.legal-section:first-child { border-top: 0; padding-top: 0; }
.legal-section h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
.legal-section h2 + p { margin-top: var(--space-2); }
.legal-section p + p { margin-top: var(--space-3); }
.legal-section ul { margin: var(--space-3) 0 0; padding-left: 1.2rem; }
.legal-section li + li { margin-top: var(--space-2); }

.services-index .spec-row {
  grid-template-columns: minmax(16rem, 0.65fr) minmax(25rem, 1.35fr) auto;
  min-height: 12rem;
}

.local-grid,
.cta-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-7);
  align-items: start;
}

.local-grid p,
.cta-copy p { max-width: 36rem; font-size: var(--step-1); }

.cta-copy .button { margin-top: var(--space-5); }

.site-footer {
  padding-block: var(--space-7) var(--space-5);
  background: #12303c;
  color: var(--on-dark);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-6);
  align-items: start;
}

.site-footer .wordmark { font-size: var(--step-2); }
.footer-nav ul { align-items: flex-start; justify-content: flex-end; flex-wrap: wrap; }
.footer-nav a { font-size: 0.76rem; text-underline-offset: 0.28em; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: var(--space-5);
  margin-top: var(--space-7);
  padding-top: var(--space-4);
  border-top: 1px solid rgb(246 241 232 / 22%);
  font-size: 0.75rem;
}

@media (max-width: 64rem) {
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(26rem, 0.9fr); }
  .spec-row { grid-template-columns: minmax(13rem, 0.75fr) minmax(18rem, 1.25fr); }
  .spec-row .text-link { grid-column: 2; justify-self: start; }
  .page-hero-grid { grid-template-columns: minmax(0, 1fr) minmax(26rem, 0.9fr); }
  .services-index .spec-row { grid-template-columns: minmax(13rem, 0.75fr) minmax(18rem, 1.25fr); }
  .services-index .spec-row .text-link { grid-column: 2; }
}

@media (max-width: 48rem) {
  .utility-bar .shell { align-items: flex-start; padding-block: 0.55rem; line-height: 1.35; }
  .utility-bar span { max-width: 12rem; }
  .nav-row .shell { min-height: 4.5rem; }
  .hero-grid { display: flex; min-height: 0; flex-direction: column; }
  .page-hero-grid { display: flex; min-height: 0; flex-direction: column; }
  .index-hero-grid { display: flex; min-height: 0; flex-direction: column; }
  .editorial-hero { padding-block: var(--space-7); }
  .editorial-hero-grid,
  .candour-section .shell,
  .contact-layout { grid-template-columns: 1fr; gap: var(--space-5); }
  .attic-figure { order: -1; height: 17rem; border-left: 0; border-bottom: var(--hairline); }
  .attic-figure svg {
    width: 142%;
    height: 42rem;
    min-height: 0;
    transform: translate(-15%, -59%);
  }
  .attic-figure figcaption {
    right: var(--gutter);
    bottom: var(--space-2);
    left: var(--gutter);
    padding-top: var(--space-1);
    font-size: 0.68rem;
  }
  .page-hero .attic-figure svg,
  .page-hero .attic-figure.crop-insulation svg,
  .page-hero .attic-figure.crop-removal svg {
    width: 150%;
    height: 43rem;
    min-height: 0;
    transform: translate(-17%, -60%);
  }
  .hero-copy { padding: var(--space-6) var(--gutter) var(--space-7); }
  .page-hero-copy { padding: var(--space-6) var(--gutter) var(--space-7); }
  .hero-copy h1 { max-width: 10ch; }
  .page-hero-copy h1 { max-width: 10ch; }
  .hero-copy .standfirst { font-size: var(--step-0); }
  .page-hero-copy .standfirst { font-size: var(--step-0); }
  .index-hero-copy { padding: var(--space-6) var(--gutter) var(--space-7); }
  .index-hero .crop-index { min-height: 17rem; }
  .index-hero .crop-index svg {
    width: 100%;
    height: 17rem;
    min-height: 0;
    transform: none;
  }
  .content-section { padding-block: var(--space-7); }
  .section-intro,
  .section-lead,
  .services-head,
  .local-grid,
  .cta-grid,
  .footer-top { grid-template-columns: 1fr; gap: var(--space-5); }
  .reading-section .section-intro { grid-template-columns: 1fr; }
  .evidence-rail { grid-template-columns: 1fr; }
  .evidence-item { padding-inline: 0; }
  .evidence-item + .evidence-item { border-top: var(--hairline); border-left: 0; }
  .spec-row { grid-template-columns: 1fr; gap: var(--space-3); min-height: 0; padding-block: var(--space-5); }
  .spec-row .text-link { grid-column: auto; margin-top: var(--space-2); }
  .services-index .spec-row { grid-template-columns: 1fr; min-height: 0; }
  .services-index .spec-row .text-link { grid-column: auto; }
  .numbered-row { grid-template-columns: 1fr; gap: var(--space-2); }
  .row-number { padding-top: 0; }
  .footer-nav ul { display: grid; grid-template-columns: 1fr 1fr; justify-content: start; gap: 0.8rem 1.5rem; }
  .footer-bottom { flex-direction: column; }
  .candour-section { padding-block: var(--space-7); }
  .candour-section h2 { font-size: clamp(2.75rem, 13vw, 4rem); }
  .quote-form { padding: var(--space-5) 0; border-inline: 0; }
  .legal-content { padding-block: var(--space-7); }
}

@media (prefers-reduced-motion: reduce) {
  .attic-svg .thermal-mid { stop-color: var(--clay); }
  .attic-svg .thermal-hot { stop-color: var(--rust); }
  .attic-svg .heat-arrow { opacity: 0.78; transform: none; }
}