/* ==========================================================================
   Technofrigo by Clauger — Solution detail pages
   ========================================================================== */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--bg); overflow-x: hidden; color: var(--fg); }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }
a { color: inherit; }

:root {
  --page-pad: clamp(20px, 4vw, 64px);
  --col-max: 1440px;
}

.wrap {
  width: 100%;
  max-width: var(--col-max);
  margin: 0 auto;
  padding-left: var(--page-pad);
  padding-right: var(--page-pad);
}

/* ─── Top utility bar ─────────────────────────────────────────────────── */
.utility {
  position: relative; z-index: 30;
  background: var(--tf-darkgreen);
  color: var(--fg-inverse-2);
  font-size: 11.5px; letter-spacing: 0.03em;
}
.utility .wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 36px; gap: 16px;
}
.utility .group-mark { display: inline-flex; align-items: baseline; gap: 10px; }
.utility .group-mark .dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--tf-sage);
  display: inline-block; transform: translateY(-1px);
}
.utility .group-mark strong { color: var(--fg-inverse); font-weight: 600; }
.utility nav { display: flex; gap: 22px; align-items: center; }
.utility nav a {
  color: var(--fg-inverse-2); text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
}
.utility nav a:hover { color: var(--fg-inverse); }
.utility .langs { display: inline-flex; gap: 2px; align-items: center; }
.utility .langs button {
  padding: 4px 8px; font-size: 11px; letter-spacing: 0.06em;
  color: var(--fg-inverse-3); border-radius: 4px;
}
.utility .langs button.active { color: var(--fg-inverse); background: rgba(255,255,255,0.06); }

/* ─── Primary nav (solid by default on solution pages) ───────────────── */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  color: var(--fg);
}
.nav .wrap {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center; gap: 32px;
  min-height: 76px;
}
.nav .logo img { height: 38px; }
.nav .menu {
  display: flex; justify-content: center; gap: 4px;
  font-family: var(--font-display); font-weight: 500; font-size: 14px;
}
.nav .menu a {
  position: relative;
  padding: 10px 14px;
  color: inherit; text-decoration: none;
  border-radius: var(--radius-sm);
  display: inline-flex; align-items: center; gap: 6px;
  transition: background var(--dur-fast) var(--ease-out);
}
.nav .menu a .caret {
  width: 8px; height: 8px;
  border-right: 1.4px solid currentColor;
  border-bottom: 1.4px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  opacity: 0.5;
}
.nav .menu a:hover { background: var(--state-hover-overlay); }
.nav .menu a.is-active { color: var(--tf-forest); }
.nav .menu a.is-active::after {
  content: '';
  position: absolute;
  left: 14px; right: 14px; bottom: 4px;
  height: 2px;
  background: var(--tf-forest);
  border-radius: 1px;
}

.nav .cta-group { display: flex; align-items: center; gap: 12px; }
.nav .search {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid currentColor;
  display: grid; place-items: center; opacity: 0.85;
}
.nav .search svg { width: 16px; height: 16px; stroke: currentColor; }
.nav .search:hover { opacity: 1; background: var(--state-hover-overlay); }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 22px; border-radius: var(--radius-pill);
  font-family: var(--font-display); font-weight: 600; font-size: 14px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.btn .arrow {
  width: 18px; height: 18px; border-radius: 50%;
  display: grid; place-items: center;
}
.btn .arrow svg { width: 10px; height: 10px; }
.btn.primary { background: var(--tf-sage); color: var(--tf-darkgreen); }
.btn.primary .arrow { background: var(--tf-darkgreen); color: var(--tf-sage); }
.btn.primary:hover { background: #b3d9b6; }
.btn.ghost-light { color: var(--fg-inverse); border-color: rgba(255,255,255,0.45); }
.btn.ghost-light .arrow { border: 1px solid currentColor; }
.btn.ghost-light:hover { background: rgba(255,255,255,0.10); border-color: white; }
.btn.ghost-dark { color: var(--fg); border-color: var(--border-strong); }
.btn.ghost-dark .arrow { border: 1px solid currentColor; }
.btn.ghost-dark:hover { background: var(--state-hover-overlay); }

/* ─── Solutions dropdown (shared with homepage) ──────────────────────── */
.nav .menu .has-dropdown { position: static; }
.nav .menu .has-dropdown > a { cursor: pointer; }
.nav .menu .has-dropdown > a .caret { transition: transform var(--dur-fast) var(--ease-out); }
.nav .menu .has-dropdown.open > a .caret { transform: rotate(225deg) translate(2px,-2px); }

.dropdown {
  position: absolute; left: 0; right: 0; top: 100%;
  z-index: 50; opacity: 0; visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out),
              visibility 0s linear var(--dur-base);
  background: var(--surface); color: var(--fg);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  box-shadow: 0 24px 60px rgba(14,20,16,0.18);
}
.has-dropdown.open .dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
  transition-delay: 0s;
}
.dropdown__inner {
  width: 100%; max-width: var(--col-max); margin: 0 auto;
  padding: 48px var(--page-pad) 56px;
  display: grid; grid-template-columns: 340px 1fr; gap: 56px;
}
.dropdown__intro { border-right: 1px solid var(--border); padding-right: 48px; }
.dropdown__eyebrow {
  font-family: var(--font-display); font-size: 11px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg-3); margin-bottom: 16px;
}
.dropdown__intro h4 {
  font-family: var(--font-display); font-weight: 700;
  font-size: 26px; line-height: 1.1; letter-spacing: -0.02em;
  margin: 0 0 14px;
}
.dropdown__intro h4 span { color: var(--tf-forest); font-style: italic; font-weight: 600; }
.dropdown__intro p { font-size: 14px; line-height: 1.55; color: var(--fg-2); margin: 0 0 28px; }
.dropdown__all {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600; font-size: 13px;
  text-decoration: none; color: var(--tf-darkgreen);
}
.dropdown__all .arr {
  width: 26px; height: 26px; border-radius: 50%;
  border: 1px solid currentColor; display: grid; place-items: center;
}
.dropdown__all .arr svg { width: 12px; height: 12px; }
.dropdown__all:hover { color: var(--tf-forest); }

.dropdown__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }
.dd-item {
  display: grid; grid-template-columns: 36px 1fr; gap: 16px;
  align-items: start; padding: 18px 20px;
  border-radius: var(--radius-md); text-decoration: none; color: var(--fg);
  transition: background var(--dur-fast) var(--ease-out);
}
.dd-item:hover { background: var(--surface-muted); }
.dd-item:hover .dd-num { color: var(--tf-forest); }
.dd-num {
  font-family: var(--font-mono), var(--font-display);
  font-size: 11px; letter-spacing: 0.14em; color: var(--fg-3);
  padding-top: 4px; transition: color var(--dur-fast) var(--ease-out);
}
.dd-body { display: flex; flex-direction: column; gap: 4px; }
.dd-body strong {
  font-family: var(--font-display); font-weight: 600; font-size: 15.5px;
  letter-spacing: -0.005em; color: var(--fg);
}
.dd-body em { font-style: normal; font-size: 13px; line-height: 1.45; color: var(--fg-3); }

/* ─── Page hero ──────────────────────────────────────────────────────── */
.page-hero {
  position: relative;
  background: var(--tf-darkgreen);
  color: var(--fg-inverse);
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 80% 30%, rgba(155,204,158,0.18) 0%, transparent 55%),
    linear-gradient(180deg, rgba(14,20,16,0.4) 0%, rgba(14,20,16,0.85) 100%);
  pointer-events: none;
}
.page-hero__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.35;
  filter: saturate(0.85);
}
.page-hero .wrap {
  position: relative;
  z-index: 2;
  padding-top: 80px;
  padding-bottom: 100px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

.breadcrumb {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-display); font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-inverse-3);
  margin-bottom: 32px;
}
.breadcrumb a { color: var(--fg-inverse-2); text-decoration: none; }
.breadcrumb a:hover { color: var(--fg-inverse); }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb .current { color: var(--fg-inverse); }

.page-hero__num {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-display);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--tf-sage);
  margin-bottom: 24px;
}
.page-hero__num::before {
  content: ''; width: 36px; height: 1px; background: var(--tf-sage);
}

.page-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(44px, 6vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin: 0;
  max-width: 18ch;
  color: var(--fg-inverse);
  text-wrap: balance;
}
.page-hero__title .sage { color: var(--tf-sage); font-style: italic; font-weight: 600; }

.page-hero__lede {
  font-size: clamp(15px, 1.1vw, 18px);
  line-height: 1.6;
  color: var(--fg-inverse-2);
  max-width: 64ch;
  margin: 28px 0 0;
}

.page-hero__meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.16);
  margin-top: 16px;
}
.page-hero__meta div { display: flex; flex-direction: column; gap: 6px; }
.page-hero__meta .k {
  font-family: var(--font-display);
  font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg-inverse-3);
}
.page-hero__meta .v {
  font-family: var(--font-display);
  font-weight: 600; font-size: 16px;
  color: var(--fg-inverse);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

/* ─── Section chrome ─────────────────────────────────────────────────── */
.section { padding: clamp(64px, 9vw, 128px) 0; }
.section.cream { background: var(--tf-cream); }
.section.surface { background: var(--surface); }
.section.muted { background: var(--surface-muted); }
.section.dark { background: var(--tf-darkgreen); color: var(--fg-inverse); }

.section-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: end;
  margin-bottom: 56px;
}
.section-head .eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-size: 11px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg-3); margin-bottom: 18px;
}
.section.dark .section-head .eyebrow { color: var(--tf-sage); }
.section-head .eyebrow::before {
  content: ''; width: 28px; height: 1px; background: var(--accent);
}
.section.dark .section-head .eyebrow::before { background: var(--tf-sage); }
.section-head h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(32px, 4vw, 56px); line-height: 1.04;
  letter-spacing: -0.025em;
  margin: 0;
}
.section.dark .section-head h2 { color: var(--fg-inverse); }
.section-head h2 .sage { color: var(--tf-forest); font-style: italic; font-weight: 600; }
.section.dark .section-head h2 .sage { color: var(--tf-sage); }
.section-head .rhs {
  font-size: 16px; line-height: 1.6;
  color: var(--fg-2);
  max-width: 52ch;
  justify-self: end;
}
.section.dark .section-head .rhs { color: var(--fg-inverse-2); }

/* ─── Capability cards ───────────────────────────────────────────────── */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.cap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.cap:hover { border-color: var(--tf-forest); }
.section.cream .cap { background: white; }
.cap__num {
  font-family: var(--font-mono), var(--font-display);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--tf-forest);
  margin-bottom: 10px;
}
.cap__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.015em;
  margin: 0;
  line-height: 1.15;
}
.cap__desc {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--fg-2);
  margin: 0;
}
.cap__list {
  list-style: none; padding: 0; margin: 8px 0 0;
  display: flex; flex-direction: column; gap: 8px;
}
.cap__list li {
  font-size: 14px;
  line-height: 1.4;
  color: var(--fg-2);
  padding-left: 22px;
  position: relative;
}
.cap__list li::before {
  content: '';
  position: absolute;
  left: 4px; top: 9px;
  width: 8px; height: 1.5px;
  background: var(--tf-forest);
}

/* ─── Applications band ──────────────────────────────────────────────── */
.apps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.apps__col h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.015em;
  margin: 0 0 12px;
}
.apps__col p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg-2);
  margin: 0 0 20px;
}
.section.dark .apps__col p { color: var(--fg-inverse-2); }
.tags {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.tag {
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 500;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  color: var(--fg-2);
}
.section.dark .tag {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.18);
  color: var(--fg-inverse-2);
}
.section.cream .tag { background: white; }
.tag.accent {
  background: var(--tf-pale-green);
  border-color: var(--tf-sage);
  color: var(--tf-darkgreen);
}

/* ─── Spec block (used on hydrogen / gas pages with hard numbers) ────── */
.specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.specs .s {
  padding: 28px 24px;
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 6px;
}
.specs .s:last-child { border-right: 0; }
.specs .s .k {
  font-family: var(--font-display);
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg-3);
}
.specs .s .v {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--tf-darkgreen);
}
.specs .s .u { font-size: 13px; color: var(--fg-3); margin-top: 2px; }

/* ─── Projects ───────────────────────────────────────────────────────── */
.proj-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border);
}
.proj-row {
  display: grid;
  grid-template-columns: 80px 1fr 220px auto;
  align-items: center;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  color: var(--fg);
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease-out);
}
.proj-row:hover { background: var(--surface-muted); padding-left: 16px; padding-right: 16px; margin: 0 -16px; border-radius: var(--radius-md); }
.proj-row .num {
  font-family: var(--font-mono), var(--font-display);
  font-size: 12px; letter-spacing: 0.14em; color: var(--fg-3);
}
.proj-row .t {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.proj-row .meta {
  font-size: 13px;
  color: var(--fg-3);
}
.proj-row .arr {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--border-strong);
  display: grid; place-items: center;
  transition: all var(--dur-fast) var(--ease-out);
}
.proj-row:hover .arr {
  background: var(--tf-darkgreen);
  color: var(--tf-sage);
  border-color: var(--tf-darkgreen);
}
.proj-row .arr svg { width: 14px; height: 14px; }

/* ─── Related solutions strip ────────────────────────────────────────── */
.related {
  background: var(--bg);
  padding: 80px 0;
  border-top: 1px solid var(--border);
}
.related h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -0.02em;
  margin: 0 0 32px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.related-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--fg);
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.related-card:hover {
  background: var(--tf-darkgreen);
  border-color: var(--tf-darkgreen);
  color: var(--fg-inverse);
}
.related-card:hover .related-card__num { color: var(--tf-sage); }
.related-card:hover .related-card__cta { color: var(--tf-sage); }
.related-card__num {
  font-family: var(--font-mono), var(--font-display);
  font-size: 10.5px; letter-spacing: 0.14em; color: var(--fg-3);
}
.related-card__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: 16px; letter-spacing: -0.01em; line-height: 1.2;
  margin: 0;
  text-wrap: balance;
}
.related-card__cta {
  margin-top: auto;
  font-family: var(--font-display);
  font-size: 12px; font-weight: 600;
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--fg-3);
}

/* ─── Contact CTA ────────────────────────────────────────────────────── */
.contact-cta {
  background: var(--tf-cream);
  padding: clamp(72px, 10vw, 144px) 0;
  position: relative;
  overflow: hidden;
}
.contact-cta::before {
  content: '';
  position: absolute;
  right: -120px; top: -120px;
  width: 480px; height: 480px;
  border-radius: 50%;
  background: var(--tf-pale-green);
  opacity: 0.5;
  filter: blur(60px);
}
.contact-cta .inner { position: relative; z-index: 2; }
.contact-cta h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 5vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0 0 24px;
  max-width: 18ch;
  text-wrap: balance;
}
.contact-cta h2 .sage { color: var(--tf-forest); font-style: italic; font-weight: 700; }
.contact-cta p {
  font-size: 17px; line-height: 1.55; color: var(--fg-2);
  max-width: 56ch; margin: 0 0 36px;
}
.contact-cta .row { display: flex; gap: 14px; flex-wrap: wrap; }

/* ─── Footer (shared) ────────────────────────────────────────────────── */
footer {
  background: var(--tf-darkgreen);
  color: var(--fg-inverse-2);
  padding: 80px 0 32px;
}
footer .top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.10);
}
footer .brand img { height: 44px; margin-bottom: 24px; }
footer .brand p { color: var(--fg-inverse-2); margin: 0 0 24px; font-size: 14px; max-width: 36ch; }
footer .brand .group {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11.5px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg-inverse-3);
  text-decoration: none;
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius-pill);
  transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
footer .brand .group:hover { color: var(--tf-sage); border-color: rgba(155,204,158,0.5); }
footer .brand .group .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--tf-sage); }
footer .brand .group .ext { font-size: 13px; opacity: 0.7; }

footer h6 {
  font-family: var(--font-display);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg-inverse); margin: 0 0 18px;
}
footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
footer ul a { color: var(--fg-inverse-2); text-decoration: none; font-size: 14px; }
footer ul a:hover { color: var(--tf-sage); }
footer .bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 32px; font-size: 12px; color: var(--fg-inverse-3);
}
footer .bottom .links { display: flex; gap: 24px; }
footer .bottom a { color: var(--fg-inverse-3); text-decoration: none; }
footer .bottom a:hover { color: var(--fg-inverse-2); }

/* ─── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .nav .menu { display: none; }
  .page-hero__meta { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: 1fr; }
  .apps { grid-template-columns: 1fr; gap: 40px; }
  .specs { grid-template-columns: repeat(2, 1fr); }
  .specs .s:nth-child(2n) { border-right: 0; }
  .section-head { grid-template-columns: 1fr; gap: 24px; }
  .section-head .rhs { justify-self: start; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .proj-row { grid-template-columns: 60px 1fr auto; gap: 20px; padding: 20px 0; }
  .proj-row .meta { grid-column: 1 / -1; padding-left: 80px; }
  footer .top { grid-template-columns: 1fr 1fr; }
  .dropdown__inner { grid-template-columns: 1fr; gap: 32px; padding: 32px var(--page-pad); }
  .dropdown__intro { border-right: 0; padding-right: 0; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
  .dropdown__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .related-grid { grid-template-columns: 1fr; }
  .section-head { margin-bottom: 32px; }
  footer .top { grid-template-columns: 1fr; }
}

footer .brand .socials {
  margin-top: 18px;
  display: inline-flex;
  gap: 8px;
}
footer .brand .socials a {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--fg-inverse-2);
  text-decoration: none;
  transition: border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}
footer .brand .socials a svg { width: 16px; height: 16px; display: block; }
footer .brand .socials a:hover {
  color: var(--tf-darkgreen);
  background: var(--tf-sage);
  border-color: var(--tf-sage);
}