.installation-hero {
  padding-block: 36px clamp(76px, 9vw, 136px);
}
.installation-breadcrumb {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: clamp(52px, 8vw, 104px);
  color: #bcbcbc;
  font-size: 11px;
}
.installation-breadcrumb a:hover {
  color: var(--white);
}
.installation-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  align-items: end;
  gap: 72px;
}
.installation-hero .eyebrow {
  margin-bottom: 30px;
}
.installation-hero h1 {
  max-width: 820px;
  font-size: clamp(52px, 6.1vw, 88px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.07em;
}
.installation-hero-side > p {
  max-width: 370px;
  margin-bottom: 27px;
  color: #d3d3d3;
  font-size: 16px;
  line-height: 1.8;
}
.installation-hero-side .text-link {
  margin-top: 0;
}
.installation-chapter-nav {
  position: fixed;
  z-index: 45;
  top: 50%;
  right: 12px;
  display: grid;
  width: 52px;
  padding: 8px 5px;
  border: 1px solid #42423f;
  border-radius: 5px;
  background: #191919;
  color: #e7e7e2;
  transform: translateY(-50%);
  box-shadow: 0 10px 30px #0002;
}
.installation-chapter-title,
.installation-chapter-label { display: none; }
.installation-chapter-nav a {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 11px;
  border-left: 2px solid transparent;
  color: #c4c4be;
  font-size: 11px;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.installation-chapter-nav a:hover,
.installation-chapter-nav a[aria-current="location"] {
  border-left-color: var(--neon);
  background: #ffffff15;
  color: #fff;
}
.installation-chapter-nav a:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: -2px;
}
.installation-chapter-number {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .04em;
}
@media (min-width: 1600px) {
  .installation-chapter-nav {
    right: max(20px, calc((100vw - 1440px) / 2 - 175px));
    width: 145px;
    padding: 15px 9px;
  }
  .installation-chapter-title {
    display: block;
    padding: 0 9px 10px;
    color: #a9a9a3;
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: .07em;
    text-transform: uppercase;
  }
  .installation-chapter-label { display: inline; }
  .installation-chapter-nav a { justify-content: flex-start; padding-inline: 9px; }
}
.installation-page .ip-installation {
  padding-block: clamp(72px, 8vw, 112px);
}
.installation-page .ip-scene {
  position: relative;
  aspect-ratio: 1.52;
  margin: 22px 20px 8px;
  overflow: hidden;
  background: #eae8e2;
}
.installation-page .ip-scene img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.installation-page .ip-scene figcaption {
  position: absolute;
  right: 12px;
  bottom: 12px;
  left: 12px;
  width: fit-content;
  padding: 6px 8px;
  background: #ffffffeb;
  color: #333;
  font-size: 9px;
  line-height: 1.5;
}
.installation-page .ip-figure {
  padding-top: 0;
}
.installation-page .ip-card-copy {
  display: flex;
  flex: 1;
  flex-direction: column;
}
.installation-page .ip-card-more {
  margin-top: 21px;
  padding-top: 18px;
  border-top: 1px solid #e6e6e0;
  color: #555;
  font-size: 11px;
  line-height: 1.65;
}
.installation-page .ip-card-more strong {
  display: block;
  margin-bottom: 9px;
  color: #111;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.installation-page .ip-card-more ul {
  margin: 0;
  padding-left: 17px;
}
.installation-page .ip-card-more li + li {
  margin-top: 7px;
}
.installation-planning,
.installation-process {
  padding-block: clamp(72px, 8vw, 112px);
}
.installation-planning {
  background: #fff;
}
.installation-process {
  background: #f4f4f0;
}
.installation-section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.65fr);
  gap: 18px 72px;
  align-items: end;
  margin-bottom: 42px;
}
.installation-section-heading .eyebrow {
  grid-column: 1 / -1;
  color: #555;
}
.installation-section-heading h2 {
  max-width: 700px;
  font-size: clamp(36px, 4vw, 56px);
}
.installation-section-heading > p:last-child {
  max-width: 430px;
  color: #555;
  font-size: 14px;
  line-height: 1.8;
}
.installation-planning-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.installation-planning-grid article {
  min-width: 0;
  min-height: 255px;
  padding: 26px 24px;
  border: 1px solid #deded9;
}
.installation-planning-grid article > span {
  display: block;
  margin-bottom: 53px;
  color: #555;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}
.installation-planning-grid h3 {
  margin-bottom: 10px;
  font-size: 19px;
  font-weight: 600;
}
.installation-planning-grid p {
  color: #555;
  font-size: 12px;
  line-height: 1.75;
}
.installation-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.installation-steps li {
  display: flex;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid #bdbdb6;
}
.installation-steps li > span {
  display: grid;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 50%;
  background: #a6ff2e;
  font-family: var(--mono);
  font-size: 10px;
}
.installation-steps h3 {
  margin-bottom: 7px;
  font-size: 17px;
}
.installation-steps p {
  color: #555;
  font-size: 12px;
  line-height: 1.75;
}
.installation-contact {
  padding-block: clamp(72px, 8vw, 112px);
}
.installation-contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.7fr);
  gap: 72px;
  align-items: end;
}
.installation-contact h2 {
  max-width: 700px;
  margin-top: 24px;
  font-size: clamp(38px, 4.6vw, 64px);
}
.installation-contact-grid > div:last-child p {
  max-width: 430px;
  margin-bottom: 24px;
  color: #d3d3d3;
  font-size: 14px;
  line-height: 1.8;
}
@media (max-width: 1199px) {
  .installation-chapter-nav {
    position: relative;
    top: auto;
    right: auto;
    display: flex;
    width: 100%;
    padding: 7px max(12px, var(--gutter));
    border: 0;
    border-bottom: 1px solid #deded9;
    border-radius: 0;
    background: #f4f4f0;
    color: #111;
    transform: none;
    box-shadow: none;
  }
  .installation-chapter-nav a {
    flex: 1;
    min-width: 0;
    min-height: 48px;
    flex-direction: column;
    gap: 0;
    border-left: 0;
    border-bottom: 2px solid transparent;
    color: #474741;
    line-height: 1.3;
  }
  .installation-chapter-label { display: inline; font-size: 9px; }
  .installation-chapter-nav a:hover,
  .installation-chapter-nav a[aria-current="location"] { border-left-color: transparent; border-bottom-color: #377600; background: transparent; color: #111; }
  .installation-chapter-nav a:focus-visible { outline-color: #111; }
  .installation-hero-grid,
  .installation-contact-grid {
    gap: 40px;
  }
  .installation-planning-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .installation-planning-grid article {
    min-height: 215px;
  }
  .installation-planning-grid article > span {
    margin-bottom: 30px;
  }
}
@media (max-width: 800px) {
  .installation-hero-grid,
  .installation-contact-grid,
  .installation-section-heading {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .installation-hero h1 {
    max-width: 720px;
  }
  .installation-section-heading .eyebrow {
    grid-column: auto;
  }
  .installation-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 639px) {
  .installation-hero {
    padding-block: 22px 78px;
  }
  .installation-breadcrumb {
    margin-bottom: 55px;
  }
  .installation-hero h1 {
    font-size: clamp(43px, 12vw, 60px);
  }
  .installation-hero-side > p {
    font-size: 14px;
  }
  .installation-page .ip-scene {
    margin-inline: 16px;
  }
  .installation-planning-grid,
  .installation-steps {
    grid-template-columns: 1fr;
  }
  .installation-planning-grid article {
    min-height: 0;
  }
  .installation-planning-grid article > span {
    margin-bottom: 20px;
  }
}

/* A single guide stroke calls attention to the profile; the underlying cut stays legible. */
.ip-trace {
  fill: none;
  stroke: #a6ff2e;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  opacity: 0;
  pointer-events: none;
}
@keyframes aled-installation-trace {
  0% { stroke-dashoffset: 1; opacity: 0; }
  12% { opacity: 1; }
  70% { stroke-dashoffset: 0; opacity: 1; }
  100% { stroke-dashoffset: 0; opacity: 0; }
}
@media (prefers-reduced-motion: no-preference) {
  .ip-card.is-tracing .ip-trace { animation: aled-installation-trace .9s cubic-bezier(.25, 1, .5, 1) both; }
  .ip-card:nth-child(2).is-tracing .ip-trace { animation-delay: .14s; }
  .ip-card:nth-child(3).is-tracing .ip-trace { animation-delay: .28s; }
}