:root {
  --roof-green: #3e6b20;
  --roof-green-deep: #31551a;
  --roof-ink: #171a16;
  --roof-muted: #5f655e;
  --roof-line: #d9ded8;
  --roof-paper: #f7f8f4;
  --roof-white: #ffffff;
  --roof-radius: 12px;
  --roof-shadow: 0 15px 42px rgba(34, 59, 23, 0.08);
  --roof-header-max: 1600px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.roof-page {
  min-width: 320px;
  margin: 0;
  color: var(--roof-ink);
  background: var(--roof-white);
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  line-height: 1.55;
}
.roof-page a { color: inherit; }
.roof-page img,
.roof-page svg { max-width: 100%; height: auto; }
.roof-shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--roof-green-deep);
  color: white;
}
.skip-link:focus { top: 16px; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  padding: 0;
  margin: -1px;
  border: 0;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.roof-site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(17, 17, 31, 0.96);
  backdrop-filter: blur(12px);
}
.roof-header-inner {
  width: min(var(--roof-header-max), calc(100% - 40px));
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  margin-inline: auto;
}
.roof-brand {
  position: relative;
  width: 205px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.roof-brand img {
  width: 100%;
  display: block;
  content: url("/assets/logos/ecoviva-horizontal-header.png");
}
.roof-main-nav { display: flex; align-items: center; gap: 24px; margin-left: auto; color: #f6f6f4; }
.roof-main-nav a { font-size: .76rem; font-weight: 650; letter-spacing: .035em; text-decoration: none; white-space: nowrap; }
.roof-main-nav a:hover, .roof-main-nav a[aria-current="page"] { color: #91b879; }
.roof-nav-dropdown { position: relative; }
.roof-nav-dropdown summary { display: flex; align-items: center; gap: 7px; color: inherit; cursor: pointer; font-size: .76rem; font-weight: 650; letter-spacing: .035em; list-style: none; white-space: nowrap; }
.roof-nav-dropdown summary::-webkit-details-marker { display: none; }
.roof-nav-dropdown summary span { color: #91b879; transition: transform .2s ease; }
.roof-nav-dropdown[open] summary span { transform: rotate(180deg); }
.roof-nav-dropdown-menu { position: absolute; top: calc(100% + 28px); left: -22px; width: 270px; padding: 12px; background: #181827; border: 1px solid rgba(255,255,255,.12); box-shadow: 0 20px 45px rgba(0,0,0,.3); }
.roof-nav-dropdown-right .roof-nav-dropdown-menu { right: -22px; left: auto; }
.roof-main-nav .roof-nav-dropdown-menu a { display: block; padding: 11px 12px; color: rgba(255,255,255,.82); line-height: 1.3; }
.roof-main-nav .roof-nav-dropdown-menu a:hover { color: #91b879; background: rgba(255,255,255,.05); }
.roof-header-cta {
  min-height: 47px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .8rem 1.15rem;
  color: white !important;
  background: var(--roof-green);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .07em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}
.roof-header-cta:hover { background: var(--roof-green-deep); }
.language-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
  border: 0;
}
.language-switch a {
  min-width: 30px;
  min-height: 38px;
  display: grid;
  place-items: center;
  border-radius: 0;
  font-size: 0.72rem;
  font-weight: 700;
  text-decoration: none;
  color: white;
}
.language-switch a[aria-current="page"] {
  color: white;
  background: var(--roof-green);
}

.page-heading { padding-block: clamp(44px, 7vw, 76px) 32px; }
.roof-eyebrow {
  margin: 0 0 12px;
  color: var(--roof-green);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.roof-page h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(2.25rem, 5vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
  overflow-wrap: break-word;
  text-wrap: balance;
}
.thermowood-page h1 { overflow-wrap: break-word; }
.heading-rule {
  width: 82px;
  height: 4px;
  margin-top: 28px;
  background: var(--roof-green);
}
.technical-subtitle {
  max-width: 850px;
  margin: 18px 0 0;
  color: var(--roof-muted);
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 700;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}
.content-flow { display: grid; gap: 24px; padding-bottom: 72px; }
.hero-overview {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(330px, 0.82fr);
  gap: 20px;
}
.stack { min-width: 0; display: grid; align-content: start; gap: 24px; }
.hero-diagram {
  min-width: 0;
  align-self: start;
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--roof-line);
  background: var(--roof-paper);
}
.hero-diagram svg { width: 100%; display: block; }
.hero-diagram > img { width: 100%; display: block; }
.stone-hero-diagram {
  overflow: hidden;
  border-color: var(--roof-green);
  border-radius: var(--roof-radius);
  background: #f4f6f3;
}
.stone-hero-diagram > img {
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
  transform: none;
}
.thermowood-hero-diagram {
  overflow: hidden;
  border: 0;
  border-radius: var(--roof-radius);
  background: #fff;
}
.thermowood-hero-diagram > img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  object-position: center;
}
.etics-hero-diagram,
.thermowood-hero-diagram {
  contain: layout paint;
}
.etics-hero-diagram > svg {
  width: 100%;
  height: auto;
  aspect-ratio: 103 / 68.667;
  overflow: hidden;
}
.thermowood-hero-diagram > svg {
  width: 100%;
  height: auto;
  aspect-ratio: 105 / 60;
  overflow: hidden;
}
.hero-number { fill: #fff; font: 700 2.3px Arial, sans-serif; }
.panel {
  min-width: 0;
  padding: clamp(20px, 3vw, 30px);
  border: 2px solid var(--roof-green);
  border-radius: var(--roof-radius);
  background: white;
}
.panel h2,
.panel h3,
.panel p,
.panel li { overflow-wrap: anywhere; }
.panel p { margin: 0; color: var(--roof-muted); }
.section-title {
  margin: 0 0 20px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--roof-line);
  color: var(--roof-green);
  font-size: clamp(1rem, 1.6vw, 1.22rem);
  line-height: 1.2;
  letter-spacing: 0.015em;
  text-transform: uppercase;
}
.overview p { font-size: clamp(1rem, 1.4vw, 1.12rem); }
.technical-note {
  margin-top: 14px !important;
  font-size: 0.92em !important;
}
.why-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.why-list li {
  position: relative;
  padding-left: 18px;
  color: #4e554d;
  font-weight: 700;
}
.why-list li::before {
  position: absolute;
  top: 0.57em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--roof-green);
  content: "";
}
.layer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}
.layer-grid li {
  min-width: 0;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 22px 24px;
  border-bottom: 1px solid var(--roof-line);
}
.layer-grid li:nth-child(odd) { border-right: 1px solid var(--roof-line); }
.layer-grid li:nth-last-child(-n + 2) { border-bottom: 0; }
.number {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: var(--roof-green);
  font-weight: 700;
}
.roof-page h3 { margin: 0 0 5px; font-size: 1rem; line-height: 1.3; }
.layer-grid p,
.icon-card p { font-size: 0.93rem; line-height: 1.45; }
.principle-grid { display: grid; grid-template-columns: repeat(6, 1fr); }
.principle-grid .icon-card { grid-column: span 2; }
.principle-grid .icon-card:nth-last-child(-n + 2) {
  grid-column: span 3;
  border-top: 1px solid var(--roof-line);
}
.icon-card {
  min-width: 0;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 15px;
  padding: 20px;
}
.principle-grid .icon-card:not(:nth-child(3)):not(:last-child) {
  border-right: 1px solid var(--roof-line);
}
.icon-card img { width: 42px; height: 42px; object-fit: contain; }
.lower-grid {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: 20px;
  align-items: start;
}
.fixing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.fixing-grid li {
  min-width: 0;
  display: grid;
  grid-template-rows: 105px auto;
  align-items: end;
  color: var(--roof-muted);
  font-size: 0.84rem;
  line-height: 1.25;
  text-align: center;
}
.fixing-grid img { width: 100%; height: 95px; object-fit: contain; }
.benefit-list { display: grid; }
.benefit-list .icon-card { padding: 11px 0; }
.benefit-list .icon-card + .icon-card { border-top: 1px solid var(--roof-line); }
.compliance { background: var(--roof-paper); }
.etics-principle-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.etics-principle-grid .icon-card:nth-child(odd) {
  border-right: 1px solid var(--roof-line);
}
.etics-principle-grid .icon-card:nth-child(n + 3) {
  border-top: 1px solid var(--roof-line);
}
.thermowood-principle-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.thermowood-principle {
  min-width: 0;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 22px 24px;
}
.thermowood-principle:nth-child(odd) { border-right: 1px solid var(--roof-line); }
.thermowood-principle:nth-child(n + 3) { border-top: 1px solid var(--roof-line); }
.thermowood-principle > span {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 2px solid var(--roof-green);
  border-radius: 50%;
  color: var(--roof-green);
  font-weight: 700;
}
.thermowood-principle p { font-size: 0.93rem; line-height: 1.45; }
.universal-facade-page .layer-grid .number { transform: translateY(3px); }
.universal-facade-page .thermowood-principle { padding-block: 23px; }
.universal-facade-page .thermowood-principle h3 { margin-bottom: 7px; }
.universal-section-intro {
  margin: 0 0 20px;
  color: var(--roof-muted);
}
.component-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: 16px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}
.component-grid li {
  min-width: 0;
  display: grid;
  grid-template-rows: 180px auto;
  gap: 12px;
  color: var(--roof-muted);
  font-size: 0.86rem;
  line-height: 1.3;
  text-align: center;
}
.component-image {
  min-width: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 8px;
  background: var(--roof-paper);
}
.component-image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.universal-component-grid li {
  grid-template-rows: 180px auto auto;
  align-content: start;
}
.universal-component-grid .component-image {
  padding: 4px;
  background: var(--roof-paper);
}
.universal-component-grid li:nth-child(1) img { transform: scale(1.18); }
.universal-component-grid li:nth-child(2) img { transform: scale(1.12); }
.universal-component-grid li:nth-child(3) img { transform: scale(1.18); }
.universal-component-grid li:nth-child(4) img { transform: scale(1.16); }
.universal-component-grid li:nth-child(5) img { transform: scale(1.14); }
.universal-component-grid small {
  color: var(--roof-muted);
  font-size: 0.78rem;
  line-height: 1.35;
}
.universal-material-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: 18px;
}
.universal-material-card {
  min-width: 0;
  overflow: hidden;
  display: grid;
  grid-template-rows: auto 1fr;
  border: 1px solid var(--roof-line);
  border-radius: 12px;
  background: var(--roof-paper);
}
.universal-material-card > img {
  width: 100%;
  aspect-ratio: 1.6 / 1;
  display: block;
  object-fit: cover;
}
.universal-material-card > div { padding: 18px 18px 20px; }
.universal-material-card h3 {
  margin: 0 0 10px;
  color: var(--roof-green);
  font-size: 1.03rem;
  line-height: 1.15;
}
.universal-material-card p { margin: 0; }
.etics-page .component-image {
  box-sizing: border-box;
  padding: 14px;
  background: #f6f8f4;
}
.etics-page .component-image img { transform-origin: center; }
.etics-page .component-image-1 img { transform: scale(1.08); }
.etics-page .component-image-2 img { transform: scale(0.88); }
.etics-page .component-image-3 img { transform: scale(0.86); }
.etics-page .component-image-4 img { transform: scale(1.12); }
.etics-page .component-image-5 img { transform: scale(1.08); }
.stone-component-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.stone-component-grid li {
  grid-template-rows: 150px auto;
}
.stone-component-grid .component-image img {
  object-fit: contain;
  transform-origin: center;
}
.stone-component-grid li:nth-child(5) .component-image img {
  transform: scale(1.12);
}
.stone-component-grid li:nth-child(6) .component-image img {
  transform: scale(0.65);
}
.stone-component-grid li:nth-child(8) .component-image img {
  transform: scale(0.62);
}
.stone-selection-panel {
  display: grid;
  gap: 18px;
}
.thermowood-component-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.thermowood-component-grid li {
  min-width: 0;
  padding: 0 15px;
  color: var(--roof-muted);
}
.thermowood-component-grid li + li { border-left: 1px solid var(--roof-line); }
.thermowood-component-grid h3 { margin-top: 12px; }
.thermowood-component-grid p { font-size: 0.86rem; line-height: 1.35; }
.thermowood-component-image {
  height: 145px;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.thermowood-component-image img {
  min-width: 0;
  min-height: 0;
  max-height: 100%;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  object-position: center;
}
.thermowood-design-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}
.thermowood-design-grid figure,
.thermowood-ageing-grid figure { min-width: 0; margin: 0; }
.thermowood-design-grid img {
  width: 100%;
  aspect-ratio: 1.55 / 1;
  display: block;
  object-fit: cover;
}
.thermowood-design-grid figcaption {
  display: grid;
  gap: 4px;
  padding-top: 10px;
  text-align: center;
}
.thermowood-design-grid figcaption strong { line-height: 1.25; }
.thermowood-design-grid figcaption span {
  color: var(--roof-muted);
  font-size: 0.84rem;
  line-height: 1.3;
}
.thermowood-lower-grid {
  display: grid;
  grid-template-columns: 0.95fr 0.95fr 1.5fr;
  gap: 0;
}
.thermowood-lower-grid > div {
  min-width: 0;
  padding: 0 20px;
}
.thermowood-lower-grid > div:first-child { padding-left: 0; }
.thermowood-lower-grid > div:last-child { padding-right: 0; }
.thermowood-lower-grid > div + div { border-left: 1px solid var(--roof-line); }
.thermowood-bullet-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.thermowood-bullet-list li {
  position: relative;
  padding-left: 16px;
  color: var(--roof-muted);
}
.thermowood-bullet-list li::before {
  position: absolute;
  top: 0.6em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--roof-green);
  content: "";
}
.thermowood-ageing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 13px;
}
.thermowood-ageing-grid img {
  width: 100%;
  aspect-ratio: 1 / 1.15;
  display: block;
  object-fit: cover;
}
.thermowood-ageing-grid figcaption {
  margin-top: 6px;
  font-size: 0.75rem;
  line-height: 1.25;
  text-align: center;
}
.stone-selection-panel .section-title { margin-bottom: 0; }
.stone-selection-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}
.stone-selection-grid figure { min-width: 0; margin: 0; text-align: center; }
.stone-selection-grid img {
  width: 100%;
  aspect-ratio: 17 / 4.4;
  display: block;
  border: 1px solid var(--roof-line);
  border-radius: 6px;
  object-fit: cover;
}
.stone-selection-grid figcaption {
  margin-top: 7px;
  color: var(--roof-ink);
  font-size: 0.84rem;
  font-weight: 700;
}
.colour-panel { display: grid; gap: 18px; }
.colour-panel .section-title { margin-bottom: 0; }
.colour-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}
.colour-row span {
  min-height: 64px;
  border: 1px solid rgba(23, 26, 22, 0.18);
  border-radius: 8px;
}
.tl-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding-top: 16px;
}
.tl-actions--landing {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 620px;
  padding-top: 0;
}
.tl-button {
  min-width: 0;
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 2px solid transparent;
  border-radius: 0;
  line-height: 1.2;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    background-color 0.18s ease,
    color 0.18s ease,
    box-shadow 0.18s ease;
}
.tl-button:hover { transform: translateY(-2px); }
.tl-button:active { transform: translateY(0); }
.tl-button:focus-visible {
  outline: 3px solid #c66f24;
  outline-offset: 3px;
  box-shadow: 0 0 0 2px var(--roof-white);
}
.roof-page .tl-button--primary { color: white; background: var(--roof-green); }
.tl-button--primary:hover { background: var(--roof-green-deep); }
.roof-page .tl-button--secondary {
  border-color: var(--roof-green);
  color: var(--roof-green-deep);
  background: var(--roof-white);
}
.roof-page .tl-button--secondary:hover { color: white; background: var(--roof-green-deep); }

.roof-site-footer { border-top: 1px solid var(--roof-line); background: var(--roof-paper); }
.roof-footer-inner { display: grid; gap: 12px; padding-block: 34px; text-align: center; }
.roof-footer-inner p { margin: 0; }
.roof-footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 22px; }
.roof-footer-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--roof-green-deep);
}
.roof-disclaimer { color: var(--roof-green); font-size: 0.88rem; }

.library-landing {
  min-height: calc(100vh - 170px);
  display: grid;
  align-content: center;
  gap: 20px;
  padding-block: 70px;
}
.library-landing h1 { max-width: 980px; }
.landing-intro {
  max-width: 620px;
  margin: 0;
  color: var(--roof-muted);
  font-size: 1.15rem;
}
.library-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}
.library-card {
  width: 100%;
  overflow: hidden;
  display: grid;
  grid-template-rows: 245px 1fr;
  border: 2px solid var(--roof-green);
  border-radius: var(--roof-radius);
  color: inherit;
  background: white;
  box-shadow: var(--roof-shadow);
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.library-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 48px rgba(34, 59, 23, 0.13);
}
.library-card > img { width: 100%; height: 245px; display: block; object-fit: cover; }
.library-card--natural-stone > img {
  object-fit: contain;
  object-position: center;
  background: #fff;
}
.library-card--thermowood > img {
  padding: 12px;
  object-fit: contain;
  object-position: center;
  background: #fff;
}
.library-card--universal-facade > img {
  padding: 12px;
  object-fit: contain;
  object-position: center;
  background: #fff;
}
.library-card--flat-roof > img {
  padding: 12px;
  object-fit: contain;
  object-position: center;
  background: #fff;
}
.library-card > span { display: grid; align-content: center; gap: 8px; padding: 26px; }
.library-card > span { min-height: 142px; }
.library-card strong {
  min-height: 2.4em;
  display: flex;
  align-items: end;
  font-size: 1.35rem;
  line-height: 1.2;
}
.library-card small { color: var(--roof-green); font-weight: 700; }
.roof-page a:focus-visible {
  outline: 3px solid #c66f24;
  outline-offset: 4px;
}

.flat-roof-section-intro {
  max-width: 940px;
  margin: 0 0 22px;
  color: var(--roof-muted);
}
.flat-roof-component-grid {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}
.flat-roof-component-grid li {
  min-width: 0;
  padding: 0 10px;
  color: var(--roof-muted);
}
.flat-roof-component-grid li + li { border-left: 1px solid var(--roof-line); }
.flat-roof-component-grid h3 {
  margin: 10px 0 6px;
  font-size: 0.95rem;
  line-height: 1.18;
}
.flat-roof-component-grid p {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.32;
}
.flat-roof-component-image {
  height: 128px;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.flat-roof-component-image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.flat-roof-options-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.flat-roof-option-card {
  min-width: 0;
  overflow: hidden;
  display: grid;
  grid-template-rows: auto 1fr;
  margin: 0;
  border: 1px solid var(--roof-line);
  border-radius: 12px;
  background: var(--roof-paper);
}
.flat-roof-option-card img {
  width: 100%;
  aspect-ratio: 1.875 / 1;
  display: block;
  object-fit: contain;
}
.flat-roof-option-card figcaption {
  display: grid;
  align-content: start;
  gap: 7px;
  padding: 16px 18px 19px;
}
.flat-roof-option-card strong { color: var(--roof-green); line-height: 1.2; }
.flat-roof-option-card span {
  color: var(--roof-muted);
  font-size: 0.86rem;
  line-height: 1.35;
}
.reference-tag {
  width: fit-content;
  padding: 4px 7px;
  border: 1px solid var(--roof-green);
  border-radius: 999px;
  color: var(--roof-green) !important;
  font-size: 0.68rem !important;
  font-weight: 700;
  letter-spacing: 0.025em;
}
.flat-roof-requirements {
  columns: 2;
  column-gap: 34px;
  margin: 0;
  padding-left: 20px;
  color: var(--roof-muted);
}
.flat-roof-requirements li {
  break-inside: avoid;
  margin-bottom: 7px;
}

@media (max-width: 1320px) {
  .roof-main-nav { display: none; }
}

@media (max-width: 940px) {
  .hero-overview,
  .lower-grid { grid-template-columns: 1fr; }
  .hero-diagram { width: 100%; max-width: 760px; margin-inline: auto; }
  .principle-grid { grid-template-columns: 1fr 1fr; }
  .principle-grid .icon-card,
  .principle-grid .icon-card:nth-last-child(-n + 2) {
    grid-column: span 1;
    border: 0;
  }
  .principle-grid .icon-card:nth-child(odd) { border-right: 1px solid var(--roof-line); }
  .principle-grid .icon-card:nth-child(n + 3) { border-top: 1px solid var(--roof-line); }
  .component-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .universal-material-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stone-component-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stone-selection-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .thermowood-component-grid,
  .thermowood-design-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .thermowood-component-grid li:nth-child(4) { border-left: 0; }
  .thermowood-component-grid li:nth-child(n + 4) {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--roof-line);
  }
  .flat-roof-component-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .flat-roof-component-grid li:nth-child(5) { border-left: 0; }
  .flat-roof-component-grid li:nth-child(n + 5) {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--roof-line);
  }
  .flat-roof-options-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .thermowood-lower-grid { grid-template-columns: 1fr 1fr; }
  .thermowood-lower-grid > div:last-child {
    grid-column: 1 / -1;
    margin-top: 24px;
    padding: 24px 0 0;
    border-top: 1px solid var(--roof-line);
    border-left: 0;
  }
  .library-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tl-actions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .roof-shell,
  .roof-header-inner { width: min(100% - 28px, 1180px); }
  .roof-header-inner { min-height: 72px; }
  .roof-brand { width: 150px; }
  .language-switch a { min-width: 44px; min-height: 44px; }
  .page-heading { padding-top: 34px; }
  .roof-page h1 { font-size: clamp(2.15rem, 11vw, 3.4rem); }
  .thermowood-page h1 { font-size: clamp(2rem, 9vw, 3.4rem); }
  .panel { padding: 18px; }
  .why-list,
  .layer-grid,
  .principle-grid { grid-template-columns: 1fr; }
  .layer-grid li,
  .layer-grid li:nth-child(odd) {
    padding: 18px 0;
    border-right: 0;
    border-bottom: 1px solid var(--roof-line);
  }
  .layer-grid li:last-child { border-bottom: 0; }
  .principle-grid .icon-card,
  .principle-grid .icon-card:nth-child(odd),
  .principle-grid .icon-card:nth-child(n + 3) {
    padding-inline: 0;
    border: 0;
    border-bottom: 1px solid var(--roof-line);
  }
  .principle-grid .icon-card:last-child { border-bottom: 0; }
  .etics-principle-grid { grid-template-columns: 1fr; }
  .etics-principle-grid .icon-card,
  .etics-principle-grid .icon-card:nth-child(odd),
  .etics-principle-grid .icon-card:nth-child(n + 3) {
    padding-inline: 0;
    border: 0;
    border-bottom: 1px solid var(--roof-line);
  }
  .etics-principle-grid .icon-card:last-child { border-bottom: 0; }
  .thermowood-principle-grid { grid-template-columns: 1fr; }
  .thermowood-principle,
  .thermowood-principle:nth-child(odd),
  .thermowood-principle:nth-child(n + 3) {
    padding: 18px 0;
    border: 0;
    border-bottom: 1px solid var(--roof-line);
  }
  .thermowood-principle:last-child { border-bottom: 0; }
  .component-grid { grid-template-columns: 1fr 1fr; }
  .universal-material-grid { grid-template-columns: 1fr; }
  .stone-component-grid { grid-template-columns: 1fr 1fr; }
  .thermowood-component-grid,
  .thermowood-design-grid { grid-template-columns: 1fr 1fr; }
  .thermowood-component-grid li {
    margin: 0;
    padding: 16px 12px;
    border-top: 1px solid var(--roof-line);
  }
  .thermowood-component-grid li:nth-child(odd) { border-left: 0; }
  .thermowood-component-grid li:nth-child(-n + 2) { border-top: 0; }
  .thermowood-component-image { height: 125px; }
  .flat-roof-component-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flat-roof-component-grid li {
    margin: 0;
    padding: 16px 12px;
    border-top: 1px solid var(--roof-line);
  }
  .flat-roof-component-grid li:nth-child(odd) { border-left: 0; }
  .flat-roof-component-grid li:nth-child(-n + 2) { border-top: 0; }
  .flat-roof-component-image { height: 120px; }
  .flat-roof-options-grid { grid-template-columns: 1fr; }
  .flat-roof-requirements { columns: 1; }
  .thermowood-lower-grid { grid-template-columns: 1fr; }
  .thermowood-lower-grid > div,
  .thermowood-lower-grid > div:first-child,
  .thermowood-lower-grid > div:last-child {
    grid-column: auto;
    margin: 0;
    padding: 20px 0;
    border: 0;
    border-bottom: 1px solid var(--roof-line);
  }
  .thermowood-lower-grid > div:first-child { padding-top: 0; }
  .thermowood-lower-grid > div:last-child {
    padding-bottom: 0;
    border-bottom: 0;
  }
  .component-grid li { grid-template-rows: 160px auto; }
  .universal-component-grid li { grid-template-rows: 160px auto auto; }
  .colour-row { grid-template-columns: repeat(3, 1fr); }
  .colour-row span { min-height: 54px; }
  .fixing-grid { grid-template-columns: 1fr; }
  .fixing-grid li {
    grid-template-rows: 120px auto;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--roof-line);
  }
  .fixing-grid li:last-child { border-bottom: 0; }
  .tl-actions,
  .tl-actions--landing { grid-template-columns: 1fr; }
  .tl-button { width: 100%; }
  .library-grid { grid-template-columns: 1fr; }
  .library-card { grid-template-rows: auto 1fr; }
  .library-card > img { height: auto; aspect-ratio: 3 / 2; }
  .library-card > span,
  .library-card strong { min-height: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}