/* Who we are — Butti Pipe inner page */

.at-inner h1,
.at-inner h2,
.at-inner h3 {
  font-family: var(--at-display);
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.12;
  color: #2b2b2b;
}

.at-inner .at-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 1rem;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
  color: var(--at-blue);
}

.at-inner .at-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--at-blue);
}

/* Hero */
.at-about-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: calc(100vh - var(--at-header));
  overflow: hidden;
  background: #f7f7f7;
}

.at-about-hero-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.92fr) 1.08fr;
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  width: 100%;
  padding: 3.2rem 0 3.2rem calc(var(--at-px) + 2.4rem);
}

.at-about-hero-copy {
  position: relative;
  z-index: 2;
  padding-right: 1rem;
}

.at-crumb {
  margin: 0 0 1.35rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #b0b8be;
}

.at-crumb strong {
  color: #2b2b2b;
  font-weight: 700;
}

.at-inner .at-about-hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 5.2vw, 4.35rem);
  line-height: 0.98;
  color: #2b2b2b;
}

.at-hero-sub {
  margin: 1rem 0 0;
  max-width: 36ch;
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.45;
  color: var(--at-blue);
}

.at-inner .at-prod-hero h1 {
  max-width: 12ch;
}


.at-inner .at-galv-hero h1 {
  max-width: 16ch;
}

.at-inner .at-quality-hero h1 {
  max-width: 10ch;
}

.at-quality-hero .at-about-hero-copy {
  max-width: 38rem;
}

.at-quality-hero .at-about-hero-lead {
  max-width: 48ch;
}

.at-sustain-hero {
  background: #fff;
}

.at-sustain-hero .at-about-hero-grid {
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
  min-height: calc(100vh - var(--at-header));
  padding: 0;
}

.at-sustain-hero .at-about-hero-copy {
  max-width: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3.4rem clamp(1.6rem, 4.5vw, 4.6rem) 3.4rem var(--at-px);
}

.at-inner .at-sustain-hero h1 {
  max-width: 18ch;
  font-size: clamp(2.55rem, 5.1vw, 4.45rem);
  line-height: 0.96;
  text-transform: lowercase;
}

.at-sustain-hero .at-about-hero-lead {
  max-width: 54ch;
  gap: 1.15rem;
  margin-top: 1.55rem;
  font-size: 0.98rem;
  line-height: 1.72;
}

.at-sustain-hero .at-about-hero-media {
  position: relative;
  min-height: calc(100vh - var(--at-header));
}

.at-sustain-hero .at-about-hero-media img {
  display: block;
  height: 100%;
  min-height: calc(100vh - var(--at-header));
  object-position: center 45%;
}

.at-sustain-down {
  position: absolute;
  right: 1.35rem;
  bottom: 1.55rem;
  z-index: 2;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.92);
  border-radius: 50%;
  color: #2b2b2b;
  background: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.at-sustain-down:hover,
.at-sustain-down:focus-visible {
  color: var(--at-blue);
}

.at-sustain-facts {
  background: #f3f5f4;
  padding: 4.8rem 0 5.2rem;
}

.at-sustain-facts .at-facts-grid {
  gap: 2.4rem 2.8rem;
}

.at-sustain-facts .at-facts-grid strong {
  display: inline-block;
  font-family: var(--at-display);
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  font-weight: 400;
  letter-spacing: 0.01em;
  padding-bottom: 0.55rem;
  border-bottom: 1px dotted #9aafa6;
}

.at-sustain-facts .at-facts-grid span {
  max-width: 24ch;
  margin-top: 0.7rem;
  padding-top: 0;
  border-top: 0;
  font-size: 0.98rem;
  line-height: 1.45;
  color: #5e6e67;
}

.at-btn-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  margin-top: 1.7rem;
  padding: 0.7rem 1.45rem;
  border: 0;
  border-radius: 2px;
  background: #2b2b2b;
  color: #fff;
  font-family: var(--at-sans);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: background 0.2s ease;
}

.at-btn-dark:hover,
.at-btn-dark:focus-visible {
  background: #111;
  color: #fff;
}

.at-galv-hero .at-about-hero-copy {
  max-width: 38rem;
}

.at-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem 2rem;
  margin-top: 2rem;
  max-width: 28rem;
}

.at-specs h3 {
  margin: 0;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed #c5cdc9;
  font-family: var(--at-display);
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.1;
  color: var(--at-blue);
}

.at-specs p {
  margin: 0.65rem 0 0;
  font-size: 0.95rem;
  line-height: 1.5;
  color: #6a7a73;
}

/* Supply chain */
.at-supply {
  position: relative;
  background: #fff;
  padding: 5.5rem 0 6rem;
  overflow: hidden;
  scroll-margin-top: var(--at-header);
}

.at-supply-inner {
  position: relative;
}

.at-supply-shade {
  position: absolute;
  z-index: 0;
  left: 22%;
  right: 10%;
  top: 6%;
  bottom: 6%;
  background: #eef2f0;
  pointer-events: none;
}

.at-supply-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(280px, 1.15fr);
  gap: clamp(2.4rem, 6vw, 5.5rem);
  align-items: start;
}

.at-supply-copy {
  padding: 0.4rem 0 1rem;
}

.at-inner .at-supply h2 {
  margin: 0 0 1.4rem;
  font-size: clamp(1.9rem, 3.5vw, 2.95rem);
  line-height: 1.08;
  color: #2b2b2b;
}

.at-supply-copy p {
  margin: 0 0 1.15rem;
  font-size: 1.02rem;
  line-height: 1.7;
  color: #6b737a;
}

.at-supply-copy p:last-child {
  margin-bottom: 0;
}

.at-supply-copy strong {
  color: #2b2b2b;
  font-weight: 700;
}

.at-supply-list {
  display: grid;
  gap: 1.55rem;
  padding: 0.2rem 0;
}

.at-supply-list-cols {
  grid-template-columns: 1fr 1fr;
  column-gap: 2rem;
}

.at-supply-list article {
  margin: 0;
}

.at-supply-list h3 {
  margin: 0;
  padding-bottom: 0.7rem;
  border-bottom: 1px dashed #c5cdc9;
  font-family: var(--at-display);
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.15;
  color: var(--at-blue);
}

.at-supply-list p {
  margin: 0.7rem 0 0;
  font-size: 0.98rem;
  line-height: 1.6;
  color: #6b737a;
}

.at-supply-list ul {
  margin: 0.7rem 0 0;
  padding: 0 0 0 1.1rem;
}

.at-supply-list li {
  margin: 0.35rem 0 0;
  font-size: 0.98rem;
  line-height: 1.55;
  color: #6b737a;
}

.at-coatings {
  padding-top: 0;
}

.at-coatings-note {
  margin: 0.4rem 0 0;
  max-width: 52ch;
  font-size: 0.98rem;
  line-height: 1.6;
  color: #6b737a;
  font-style: italic;
}

.at-about-hero-lead {
  display: grid;
  gap: 1rem;
  margin-top: 1.35rem;
  max-width: 46ch;
  font-size: 1.02rem;
  line-height: 1.65;
  color: #6b737a;
}

.at-about-hero-lead p {
  margin: 0;
}

.at-about-hero-lead strong {
  color: #2b2b2b;
  font-weight: 700;
}

.at-about-hero-media {
  margin: 0;
}

.at-about-hero-media img {
  width: 100%;
  height: min(78vh, 740px);
  object-fit: cover;
  object-position: center;
}

.at-side-scroll {
  position: absolute;
  left: 0.15rem;
  top: 52%;
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  color: #b0b8be;
  text-decoration: none;
  transform: translateY(-50%);
  transition: color 0.25s ease, transform 0.25s ease;
}

.at-side-scroll span {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.at-side-scroll::after {
  content: "";
  width: 1px;
  height: 3.25rem;
  background: currentColor;
  opacity: 0.7;
}

.at-side-scroll:hover,
.at-side-scroll:focus-visible {
  color: var(--at-blue);
  transform: translateY(-42%);
}

/* Quality tests */
.at-tests {
  background: #f7f7f7;
  padding: 5.4rem 0 6rem;
  scroll-margin-top: var(--at-header);
}

.at-inner .at-tests h2 {
  margin: 0 0 1.35rem;
  max-width: 18ch;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.02;
  color: #2b2b2b;
}

.at-tests-intro p,
.at-tests-close p {
  margin: 0 0 1.05rem;
  max-width: 68ch;
  font-size: 1.02rem;
  line-height: 1.7;
  color: #6b737a;
}

.at-tests-intro p:last-child,
.at-tests-close p:last-child {
  margin-bottom: 0;
}

.at-tests-intro strong,
.at-tests-close strong {
  color: #2b2b2b;
  font-weight: 700;
}

.at-tests-rule {
  width: 100%;
  height: 1px;
  margin: 2.4rem 0 1.8rem;
  background: #d5ddd8;
}

.at-tests-label {
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: #6b737a;
}

.at-tests-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1.4rem 1.1rem;
  align-items: stretch;
}

.at-tests-sub {
  margin: 0 0 0.55rem;
  font-family: var(--at-sans);
  font-size: 1.05rem;
  font-weight: 700;
  color: #2b2b2b;
}

.at-tests-card {
  position: relative;
  z-index: 0;
  display: flex;
  flex-direction: column;
  min-height: 22.5rem;
  padding: 2.3rem 1.2rem 1.9rem;
}

.at-tests-card::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  bottom: 0;
  left: 0.85rem;
  right: 0.85rem;
  background: #e6ebe8;
}

.at-tests-icon {
  display: grid;
  place-items: center;
  flex: 1 1 auto;
  min-height: 6.5rem;
  margin-bottom: 0.4rem;
  color: #2b2b2b;
}

.at-tests-icon img {
  width: 48px;
  height: 48px;
}

.at-tests-card h3 {
  margin: 0;
  padding: 1.05rem 0 0;
  border-top: 1px solid #c5cdc9;
  font-family: var(--at-sans);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.35;
  color: #2b2b2b;
}

.at-tests-card p {
  margin: 0.55rem 0 0;
  font-size: 0.82rem;
  font-weight: 400;
  line-height: 1.45;
  color: #7a858c;
}

.at-tests-close {
  margin-top: 2.6rem;
}

/* Facts */
.at-facts {
  background: #f5f7f6;
  padding: 4.5rem 0 5rem;
  scroll-margin-top: var(--at-header);
}

.at-facts-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2.6rem 2rem;
}

.at-facts-grid article {
  min-width: 0;
}

.at-facts-grid strong {
  display: block;
  font-family: var(--at-sans);
  font-size: clamp(1.55rem, 2.4vw, 2.05rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--at-blue);
}

.at-facts-grid strong sup {
  font-size: 0.55em;
}

.at-facts-grid span {
  display: block;
  margin-top: 0.7rem;
  padding-top: 0.7rem;
  border-top: 1px dotted #9aafa6;
  font-size: 0.95rem;
  line-height: 1.4;
  color: #5e6e67;
}

/* Strengths on inner pages */
.at-inner .at-strengths {
  background: #f7f7f7;
  color: var(--at-text);
  padding: 5.5rem 0 5rem;
}

.at-inner .at-strengths h2 {
  margin: 0;
  font-size: clamp(2.1rem, 4vw, 3.3rem);
  line-height: 1.05;
  color: #2b2b2b;
}

.at-inner .at-strengths .at-feature-content h3 {
  margin: 0 0 0.55rem;
  font-family: var(--at-display);
  font-weight: 400;
  font-size: 1.12rem;
  letter-spacing: 0.01em;
  line-height: 1.2;
  color: #2b2b2b;
}

/* Mission / Vision */
.at-story {
  position: relative;
  background: #fff;
  padding: 5.5rem 0 0;
  overflow: hidden;
}

.at-story-inner {
  position: relative;
}

.at-story-shade {
  position: absolute;
  z-index: 0;
  pointer-events: none;
  background: #eef2f0;
}

.at-story-mission {
  scroll-margin-top: var(--at-header);
}

.at-story-mission .at-story-shade {
  left: 18%;
  right: calc(var(--at-px) * -1);
  top: 42%;
  bottom: 0;
}

.at-story-vision {
  padding: 0;
}

.at-story-vision .at-story-shade {
  left: calc(var(--at-px) * -1);
  right: 22%;
  top: 0;
  height: 58%;
}

.at-story-sustain {
  padding: 0 0 5.5rem;
}

.at-story-sustain .at-story-shade {
  left: 18%;
  right: calc(var(--at-px) * -1);
  top: 18%;
  bottom: 0;
}

.at-story-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2.4rem, 6vw, 5.5rem);
  align-items: center;
}

.at-story-media {
  margin: 0;
}

.at-story-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.at-story-copy {
  position: relative;
  z-index: 1;
  padding: 0.4rem 0 5.5rem;
}

.at-inner .at-story h2 {
  margin: 0 0 1.5rem;
  max-width: 18ch;
  font-size: clamp(2rem, 3.8vw, 3.15rem);
  line-height: 1.05;
  color: #2b2b2b;
}

.at-story-copy p {
  margin: 0 0 1.15rem;
  max-width: 48ch;
  font-size: 1.02rem;
  line-height: 1.7;
  color: #6b737a;
}

.at-story-copy p:last-child {
  margin-bottom: 0;
}

.at-story-copy strong {
  color: #2b2b2b;
  font-weight: 700;
}

@media (max-width: 1100px) {
  .at-facts-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem 1.6rem;
  }
}

@media (max-width: 991.98px) {
  .at-about-hero {
    min-height: 0;
  }

  .at-about-hero-grid,
  .at-story-grid,
  .at-supply-grid {
    grid-template-columns: 1fr;
  }

  .at-supply-list-cols {
    grid-template-columns: 1fr;
  }

  .at-about-hero-grid {
    padding: 1.8rem var(--at-px) 4.2rem;
  }

  .at-sustain-hero .at-about-hero-grid {
    min-height: 0;
    padding: 1.8rem var(--at-px) 0;
  }

  .at-sustain-hero .at-about-hero-copy {
    padding: 0 0 1.6rem;
  }

  .at-inner .at-sustain-hero h1 {
    max-width: none;
    font-size: clamp(1.9rem, 9vw, 2.8rem);
  }

  .at-sustain-hero .at-about-hero-media,
  .at-sustain-hero .at-about-hero-media img {
    min-height: 42vh;
    height: 42vh;
  }

  .at-about-hero-copy {
    max-width: none;
    padding-right: 0;
  }

  .at-inner .at-about-hero h1 {
    max-width: none;
    font-size: clamp(2rem, 9vw, 2.9rem);
  }

  .at-specs {
    max-width: none;
  }

  .at-about-hero-media img,
  .at-story-media img {
    height: auto;
    max-height: 48vh;
    width: 100%;
  }

  .at-side-scroll {
    display: none;
  }

  .at-story-vision .at-story-copy {
    order: -1;
  }

  .at-story-mission .at-story-shade,
  .at-story-vision .at-story-shade,
  .at-story-sustain .at-story-shade {
    left: calc(var(--at-px) * -0.5);
    right: calc(var(--at-px) * -0.5);
  }

  .at-story-vision .at-story-shade {
    top: 0;
    height: 42%;
    bottom: auto;
  }

  .at-story-mission .at-story-shade,
  .at-story-sustain .at-story-shade {
    top: 38%;
    bottom: 0;
  }

  .at-story-copy {
    padding-bottom: 3.2rem;
  }

  .at-supply {
    padding: 3.4rem 0 4rem;
  }

  .at-supply-shade {
    left: calc(var(--at-px) * -0.4);
    right: calc(var(--at-px) * -0.4);
    top: 8%;
    bottom: 0;
  }

  .at-inner .at-supply h2 {
    max-width: none;
  }

  .at-tests {
    padding: 3.4rem 0 4rem;
  }

  .at-inner .at-tests h2 {
    max-width: none;
  }

  .at-tests-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.4rem 1rem;
  }

  .at-tests-card {
    min-height: 18rem;
  }
}

@media (max-width: 900px) {
  .at-tests-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .at-tests-grid {
    grid-template-columns: 1fr;
    max-width: 22rem;
    margin-inline: auto;
  }

  .at-facts-grid {
    grid-template-columns: 1fr;
    gap: 1.6rem;
  }

  .at-facts {
    padding: 2.6rem 0 2.8rem;
  }

  .at-story {
    padding: 2.6rem 0 0;
  }

  .at-story-vision,
  .at-story-sustain {
    padding: 0 0 2.6rem;
  }

  .at-contact-top {
    padding-top: 1.8rem;
  }

  .at-inner .at-contact-top h1,
  .at-inner .at-careers h1,
  .at-inner .at-tubes-listing h1,
  .at-inner .at-tube h1 {
    font-size: clamp(2rem, 10vw, 2.7rem);
  }

  .at-tube {
    padding: 2rem 0 3.6rem;
  }

  .at-careers {
    padding: 2rem 0 3.6rem;
  }

  .at-careers-form .at-btn {
    width: 100%;
    min-width: 0;
  }

  .at-contact-map {
    height: 36vh;
  }

  .at-find {
    padding-bottom: 2.4rem;
  }
}

/* Contacts */
.at-contact-top {
  background: #f7f7f7;
  padding: 2.6rem 0 0;
}

.at-inner .at-contact-top h1 {
  margin: 0 0 1.8rem;
  font-size: clamp(2.6rem, 5.4vw, 4.5rem);
  line-height: 0.95;
  color: #2b2b2b;
}

.at-contact-mapwrap {
  width: min(1400px, calc(100% - (var(--at-px) * 2)));
  margin: 0 auto;
}

.at-contact-map {
  width: 100%;
  height: min(58vh, 520px);
  background: #e4e9e6;
  filter: grayscale(0.15);
}

.at-map-pin {
  width: 16px;
  height: 16px;
  border-radius: 50% 50% 50% 0;
  background: #e31c23;
  transform: rotate(-45deg);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
}

.at-find {
  position: relative;
  background: #fff;
  padding: 4.8rem 0 5.2rem;
  scroll-margin-top: var(--at-header);
}

.at-find-grid {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) minmax(280px, 1.4fr) minmax(180px, 0.75fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
}

.at-inner .at-find h2 {
  margin: 0;
  max-width: 8ch;
  font-size: clamp(1.9rem, 3.4vw, 2.85rem);
  line-height: 1.05;
  color: #2b2b2b;
}

.at-find-places {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.4rem 1.6rem;
}

.at-find-places h3 {
  margin: 0 0 0.7rem;
  font-family: var(--at-sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #2b2b2b;
}

.at-find-places p,
.at-find-reach p {
  margin: 0 0 1.1rem;
  font-size: 0.95rem;
  line-height: 1.55;
  color: #6b737a;
}

.at-find-reach p:last-of-type {
  margin-bottom: 1.2rem;
}

.at-find-reach a {
  color: inherit;
}

.at-find-reach a:hover {
  color: var(--at-blue);
}

.at-linkedin-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0.45rem 1.15rem;
  border-radius: 999px;
  background: var(--at-blue);
  color: #fff !important;
  font-size: 0.88rem;
  font-weight: 600;
}

.at-linkedin-btn:hover {
  background: var(--at-blue-800);
}

.at-find-down,
.at-contact-down {
  position: absolute;
  right: var(--at-px);
  top: 50%;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: #8a949c;
  transform: translateY(-50%);
}

.at-find-down:hover,
.at-contact-down:hover {
  color: var(--at-blue);
}

.at-inner .at-contact {
  position: relative;
  scroll-margin-top: var(--at-header);
}

.at-inner .at-contact h2 {
  margin: 0 0 1.2rem;
  max-width: 10em;
  font-size: clamp(2rem, 3.6vw, 3.05rem);
  line-height: 1.05;
  color: #2b2b2b;
}

.at-inner .at-contact .at-btn {
  border-radius: 4px;
}

.at-contact-down {
  top: auto;
  bottom: 2rem;
  transform: none;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.at-contact-down:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.2);
}

.at-form-success {
  margin: 0;
  color: #1d6b3a;
  font-size: 0.95rem;
}

.at-form-errors {
  margin: 0;
  color: #b42318;
  font-size: 0.92rem;
}

.at-form-errors p {
  margin: 0 0 0.35rem;
}

/* Tube listing + detail */
.at-tubes-listing {
  background: #f7f7f7;
  padding: 4.2rem 0 5.5rem;
}

.at-tubes-intro {
  max-width: 46rem;
  margin-bottom: 2.4rem;
}

.at-inner .at-tubes-listing h1 {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(2.4rem, 5vw, 4.1rem);
  color: #2b2b2b;
}

.at-tubes-intro .at-hero-sub {
  margin: 0.85rem 0 1.1rem;
  max-width: none;
}

.at-tubes-intro p {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.7;
  color: #6b737a;
}

.at-tubes-intro p strong {
  color: #2b2b2b;
}

.at-inner .at-product-card {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.15rem 1.1rem 1.1rem;
  background: linear-gradient(180deg, #4f7362 0%, #3f5e4f 48%, #243d37 100%);
  color: #fff;
  text-decoration: none;
  transition: filter 0.3s ease;
}

.at-inner .at-product-card:hover {
  filter: brightness(1.12);
}

.at-inner .at-product-card h3 {
  position: relative;
  z-index: 1;
  margin: auto 0 1.1rem;
  font-family: var(--at-display);
  font-size: clamp(1.15rem, 1.5vw, 1.55rem);
  font-weight: 400;
  line-height: 1.05;
  color: #fff;
  text-transform: uppercase;
  max-width: 88%;
}

.at-inner .at-product-card:hover .at-product-arrow {
  transform: translateX(4px);
}

.at-tube {
  position: relative;
  background: #fff;
  padding: 4.4rem 0 5.8rem;
  min-height: calc(100vh - var(--at-header));
}

.at-tube-grid {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(240px, 1fr);
  gap: 4rem;
  align-items: start;
}

.at-tube-copy {
  position: sticky;
  top: calc(var(--at-header) + 1.5rem);
  align-self: start;
  z-index: 1;
  transition: top 0.35s ease;
}

body:has(.at-header.is-hidden) .at-tube-copy {
  top: 1.5rem;
}

.at-inner .at-tube h1 {
  margin: 0;
  font-size: 3rem;
  color: #2b2b2b;
}

.at-tube-std {
  margin: 0.9rem 0 0;
  font-family: var(--at-sans);
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--at-blue);
}

.at-tube-use {
  margin: 0.2rem 0 0;
  font-size: 1.12rem;
  font-weight: 500;
  color: var(--at-blue);
}

.at-tube-lead {
  margin: 1.35rem 0 0;
  font-size: 1.02rem;
  line-height: 1.7;
  color: #6b737a;
}

.at-tube .at-btn-dark {
  gap: 0.55rem;
}

.at-tube-specs {
  padding-top: 0rem;
}

.at-spec-block {
  margin: 0 0 1.85rem;
}

.at-spec-block:last-child {
  margin-bottom: 0;
}

.at-inner .at-tube-specs h3 {
  margin: 0;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed #c5cdc9;
  font-family: var(--at-sans);
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.3;
  color: #2b2b2b;
}

.at-tube-specs p {
  margin: 0.55rem 0 0;
  font-size: 0.98rem;
  line-height: 1.55;
  color: #6b737a;
}

.at-tube-specs ul {
  margin: 0.45rem 0 0;
  padding: 0 0 0 1.05rem;
}

.at-tube-specs li {
  margin: 0.28rem 0 0;
  font-size: 0.98rem;
  line-height: 1.5;
  color: #6b737a;
}

.at-spec-group {
  margin-top: 0.95rem;
}

.at-spec-group h4 {
  margin: 0;
  font-family: var(--at-sans);
  font-size: 0.92rem;
  font-weight: 700;
  color: #2b2b2b;
}

.at-spec-rows {
  margin: 0.55rem 0 0;
}

.at-spec-rows > div {
  display: grid;
  grid-template-columns: minmax(8rem, 0.42fr) minmax(0, 1fr);
  gap: 0.65rem 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid #ecefee;
}

.at-spec-rows dt {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: #2b2b2b;
}

.at-spec-rows dd {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.5;
  color: #6b737a;
}

.at-spec-note {
  font-style: italic;
}

.at-tube-down {
  position: absolute;
  right: var(--at-px);
  bottom: 1.8rem;
  z-index: 2;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid #c5cdc9;
  border-radius: 50%;
  color: #8a949c;
  background: #fff;
}

.at-tube-down:hover,
.at-tube-down:focus-visible {
  color: var(--at-blue);
  border-color: var(--at-blue);
}

.at-related {
  background: #f7f7f7;
  padding: 4.2rem 0 5.2rem;
  scroll-margin-top: var(--at-header);
}

.at-inner .at-related h2 {
  margin: 0 0 1.8rem;
  font-size: clamp(1.8rem, 3.2vw, 2.7rem);
  color: #2b2b2b;
}

.at-related-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 991.98px) {
  .at-tube {
    min-height: 0;
    padding: 2.4rem 0 5.2rem;
  }

  .at-tube-grid {
    grid-template-columns: 1fr;
    gap: 2.4rem;
  }

  .at-tube-copy {
    position: static;
  }

  .at-tube-specs {
    padding-top: 0;
  }

  .at-inner .at-tube h1,
  .at-inner .at-tubes-listing h1 {
    max-width: none;
  }

  .at-spec-rows > div {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  .at-related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .at-related-grid {
    grid-template-columns: 1fr;
    max-width: 22rem;
  }
}

@media (max-width: 991.98px) {
  .at-find-grid,
  .at-find-places {
    grid-template-columns: 1fr;
  }

  .at-find-down {
    display: none;
  }

  .at-contact-map {
    height: 42vh;
  }
}

/* Work with us */
.at-careers {
  background: #fff;
  padding: 3.4rem 0 6.5rem;
  min-height: calc(100vh - var(--at-header));
}

.at-inner .at-careers h1 {
  margin: 0;
  font-size: clamp(2.6rem, 5.4vw, 4.5rem);
  line-height: 0.95;
  color: #2b2b2b;
}

.at-careers-lead {
  margin: 1.15rem 0 2.4rem;
  max-width: 54ch;
  font-size: 1.05rem;
  line-height: 1.65;
  color: #6b737a;
}

.at-careers-form {
  max-width: 920px;
}

.at-careers-form textarea {
  min-height: 168px;
}

.at-file {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
  min-height: 52px;
  border: 1px solid #c5cdc9;
  background: #fff;
  padding: 0.55rem 0.85rem 0.65rem;
}

.at-file input[type="file"] {
  width: 100%;
  border: 0;
  padding: 0;
  font-size: 0.92rem;
  color: #8a949c;
  background: transparent;
}

.at-file input[type="file"]:focus {
  outline: none;
}

.at-file-hint {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.4;
  color: #8a949c;
}

.at-careers-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  flex-wrap: wrap;
  margin-top: 0.35rem;
}

.at-careers-foot .at-form-actions {
  margin-top: 0;
}

.at-careers-form .at-btn {
  min-width: 180px;
  border-radius: 0;
}

@media (max-width: 991.98px) {
  .at-careers {
    min-height: 0;
    padding: 2.4rem 0 5.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .at-side-scroll {
    transition: none;
  }
}