/* ============================================
   APPLICATION PAGES — Shared Styles
   
   Styles specific to application/sector pages
   (highways, railways, industrial, utilities,
   urban-developments, data-centres).
   
   These pages reuse homepage components (product
   module, lifecycle, circularity, applications,
   insights, contact, footer) but add new sections:
   hero, sub-nav, intro, why-air, benefits,
   specification, FAQs.
   ============================================ */


/* ============================================
   APP HERO

   Full-viewport background image with bold text
   sitting directly on a gradient-darkened image.
   Strong dark-green wash on left fades right.
   ============================================ */

.app-hero {
  position: relative;
  width: 100%;
  height: 77vh;
  min-height: 540px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border-top: none;
  border-bottom: 6px solid #A3AE9C;
  padding: 0;
}

.app-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.app-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(to right, rgba(8,49,42,.9) 0%, rgba(8,49,42,.7) 35%, rgba(8,49,42,.25) 60%, transparent 80%),
    radial-gradient(circle at 72% 35%, rgba(255,255,255,.12), transparent 34%),
    linear-gradient(180deg, rgba(0,0,0,.18), rgba(0,0,0,.32));
}

.app-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.035);
  transform-origin: center;
  animation: appHeroDrift 18s ease-out forwards;
}

@keyframes appHeroDrift {
  from { transform: scale(1.055); }
  to { transform: scale(1.01); }
}

.app-hero__breadcrumb {
  position: relative;
  z-index: 2;
  padding: 110px var(--container-padding) 0;
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
  font-size: 14px;
  color: rgba(255,255,255,.85);
  font-family: var(--font-body);
}

.app-hero__breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.app-hero__breadcrumb li {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}

.app-hero__breadcrumb li + li::before {
  content: "›";
  margin: 0 6px;
  color: rgba(255,255,255,.55);
}

.app-hero__breadcrumb a {
  color: rgba(255,255,255,.85);
  text-decoration: none;
}

.app-hero__breadcrumb a:hover {
  text-decoration: underline;
}

.app-hero__breadcrumb [aria-current="page"] {
  color: rgba(255,255,255,.92);
}

.app-hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
  width: 100%;
}

.app-hero__content h1 {
  color: #fff;
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  font-family: var(--font-heading);
  line-height: 1.1;
  margin: 0 0 12px;
  max-width: 600px;
}

.app-hero__content p {
  color: rgba(255,255,255,.85);
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.65;
  margin: 0 0 28px;
  max-width: 520px;
}

.app-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.app-hero__chip {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.26);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  color: rgba(255,255,255,.9);
  font-family: var(--font-body);
  white-space: nowrap;
  backdrop-filter: blur(8px);
}

.app-hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.app-hero__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-body);
  text-decoration: none;
  cursor: pointer;
  transition: all .2s ease;
}

.app-hero__btn--primary {
  background: #fff;
  color: #1F3B2D;
  border: 2px solid #fff;
}

.app-hero__btn--primary:hover {
  background: transparent;
  color: #fff;
}

.app-hero__btn--outline {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 2px solid rgba(255,255,255,.4);
}

.app-hero__btn--outline:hover {
  background: #fff;
  color: #1F3B2D;
}

/* Depth pages can carry longer, search-specific titles without compressing
   the supporting copy and actions against the section boundary. */
.app-hero--long-title {
  height: max(77vh, 620px);
  min-height: 620px;
}

.app-hero--long-title .app-hero__content h1 {
  max-width: 780px;
  font-size: clamp(2.5rem, 4.3vw, 3.5rem);
}

.app-hero--long-title .app-hero__content p {
  max-width: 620px;
}

@media (min-width: 768px) and (max-height: 800px) {
  .app-hero--long-title .app-hero__breadcrumb {
    padding-top: 92px;
  }

  .app-hero--long-title .app-hero__content {
    padding-bottom: 32px;
  }
}

@media (max-width: 767px) {
  .page-app {
    overflow-x: hidden;
  }

  .app-hero {
    min-height: min(820px, 96svh);
    height: auto;
  }

  .app-hero__breadcrumb {
    padding-top: clamp(96px, 24vw, 124px);
  }

  .app-hero__content {
    min-width: 0;
    flex: 0 0 auto;
    justify-content: flex-start;
    padding-top: clamp(26px, 8vw, 44px);
    padding-bottom: clamp(54px, 15vw, 86px);
  }

  .app-hero__content h1,
  .app-hero__content p,
  .app-hero__chips,
  .app-hero__ctas {
    max-width: 100%;
  }

  .app-hero__content h1 {
    margin-bottom: clamp(18px, 5vw, 26px);
  }

  .app-hero__content p {
    margin-bottom: clamp(30px, 8vw, 42px);
  }

  .app-hero__chips {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 9px 8px;
  }

  .app-hero__chip {
    max-width: 100%;
    width: auto;
    padding-inline: 12px;
    white-space: normal;
    line-height: 1.25;
  }

  .app-hero__ctas {
    margin-top: clamp(30px, 8vw, 44px);
  }

  .app-hero--long-title {
    height: auto;
    min-height: min(860px, 98svh);
  }
}

@media (prefers-reduced-motion: reduce) {
  .app-subnav::after {
    transition: none;
  }

  .app-hero__bg img {
    animation: none;
    transform: none;
  }

  .app-intro__card,
  .app-why__card,
  .app-benefits__card,
  .app-evidence__card,
  .app-faq,
  .app-faq__answer {
    transition: none;
  }
}


/* ============================================
   STICKY SUB-NAV
   
   Horizontal scrolling nav that sticks to the top
   on scroll. Dark green background when stuck.
   Highlights the current section.
   ============================================ */

.app-subnav {
  position: sticky;
  top: 72px;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid rgba(0,0,0,.1);
  transition: background .25s ease, box-shadow .25s ease;
  padding: 0;
  --app-subnav-progress: 0%;
}

.app-subnav::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, #08312A, #A3AE9C);
  transform: scaleX(var(--app-subnav-progress));
  transform-origin: left center;
  transition: transform .12s linear;
}

.app-subnav.is-stuck {
  background: #08312A;
  box-shadow: 0 2px 12px rgba(0,0,0,.15);
}

.app-subnav.is-stuck::after {
  background: linear-gradient(90deg, #fff, #A3AE9C);
}

.app-subnav.is-stuck .app-subnav__link {
  color: rgba(255,255,255,.8);
}

.app-subnav.is-stuck .app-subnav__link:hover,
.app-subnav.is-stuck .app-subnav__link.is-active {
  color: #fff;
  border-bottom-color: #fff;
}

.app-subnav__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  gap: clamp(20px, 3vw, 36px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.app-subnav__inner::-webkit-scrollbar {
  display: none;
}

.app-subnav__link {
  display: block;
  padding: 16px 0;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s ease, border-color .2s ease;
}

.app-subnav__link:hover,
.app-subnav__link.is-active {
  color: var(--color-text);
  border-bottom-color: var(--color-text);
}


/* ============================================
   INTRODUCTION SECTION
   
   Left column: heading + body text.
   Right side: two cards with green header bars.
   ============================================ */

.app-intro {
  background: var(--color-off-white);
  border-top: none;
}

.app-intro__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
}

@media (min-width: 900px) {
  .app-intro__inner {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }
}

.app-intro__text h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin: 0 0 20px;
  font-family: var(--font-heading);
}

.app-intro__text p {
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
  font-size: 16px;
}

.app-intro__cards {
  display: grid;
  gap: 16px;
}

.app-intro__card {
  border: 1px solid rgba(8,49,42,.12);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 10px 30px rgba(8,49,42,.05);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
@media (hover: hover) {
  .app-intro__card:hover {
    transform: translateY(-5px);
    border-color: rgba(8,49,42,.22);
    box-shadow: 0 18px 42px rgba(8,49,42,.1);
  }
}

.app-intro__card-header {
  background: var(--color-primary-dark);
  color: #fff;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-body);
  border-bottom: 3px solid #A3AE9C;
}

.app-intro__card-body {
  padding: 20px;
}

.app-intro__card-body ul {
  list-style: disc;
  padding-left: 20px;
  margin: 0;
}

.app-intro__card-body li {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: 8px;
}

.app-intro__card-body li:last-child {
  margin-bottom: 0;
}

.app-intro__card-body a {
  color: inherit;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: rgba(8,49,42,.35);
  text-underline-offset: 3px;
  transition: color .2s ease, text-decoration-color .2s ease;
}

.app-intro__card-body a:hover {
  color: var(--color-primary-dark);
  text-decoration-color: currentColor;
}


/* ============================================
   FEATURED CHILD-PAGE MODULE

   Prominent parent-to-child discovery path for
   application pages with deeper solution content.
   ============================================ */

.app-child-feature {
  background: #08312A;
  color: #fff;
  border-top: none;
  scroll-margin-top: 130px;
}

.app-child-feature__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  align-items: center;
  gap: clamp(32px, 5vw, 80px);
}

.app-child-feature__media {
  display: block;
  min-height: clamp(360px, 34vw, 540px);
  overflow: hidden;
  border-radius: 6px;
  background: #102e29;
}

.app-child-feature__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
  transition: transform .45s ease;
}

@media (hover: hover) {
  .app-child-feature__media:hover img {
    transform: scale(1.025);
  }
}

.app-child-feature__content {
  max-width: 650px;
}

.app-child-feature__eyebrow {
  margin: 0 0 16px;
  color: #C8D7A5;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.app-child-feature__content h2 {
  margin: 0;
  color: #fff;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.08;
}

.app-child-feature__summary {
  max-width: 60ch;
  margin: 24px 0 0;
  color: rgba(255,255,255,.8);
  font-size: 17px;
  line-height: 1.7;
}

.app-child-feature__proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: clamp(28px, 4vw, 42px) 0 0;
  padding: 0;
  border-top: 1px solid rgba(255,255,255,.18);
  border-bottom: 1px solid rgba(255,255,255,.18);
}

.app-child-feature__proof div {
  padding: 20px 18px 20px 0;
}

.app-child-feature__proof div + div {
  padding-left: 18px;
  border-left: 1px solid rgba(255,255,255,.18);
}

.app-child-feature__proof dt {
  margin: 0;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.25;
}

.app-child-feature__proof dd {
  margin: 5px 0 0;
  color: rgba(255,255,255,.65);
  font-size: 13px;
  line-height: 1.45;
}

.app-child-feature__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  margin-top: 32px;
  padding: 14px 24px;
  border: 1px solid #fff;
  border-radius: 999px;
  color: #08312A;
  background: #fff;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background .2s ease, color .2s ease, transform .2s ease;
}

.app-child-feature__cta:hover {
  color: #fff;
  background: transparent;
  transform: translateY(-2px);
}

.app-child-feature__cta:focus-visible,
.app-child-feature__media:focus-visible {
  outline: 3px solid #C8D7A5;
  outline-offset: 4px;
}

@media (max-width: 899px) {
  .app-child-feature__inner {
    grid-template-columns: 1fr;
  }

  .app-child-feature__media {
    min-height: clamp(260px, 62vw, 420px);
  }
}

@media (max-width: 560px) {
  .app-child-feature__proof {
    grid-template-columns: 1fr;
  }

  .app-child-feature__proof div {
    padding: 16px 0;
  }

  .app-child-feature__proof div + div {
    padding-left: 0;
    border-top: 1px solid rgba(255,255,255,.18);
    border-left: none;
  }

  .app-child-feature__cta {
    width: 100%;
  }
}


/* ============================================
   APPLICATION PROOF FLOW

   Sector-specific visual proof module used after
   the introduction on application pages.
   ============================================ */

.app-flow {
  background: #fff;
  border-top: 1px solid rgba(8,49,42,.08);
}

.app-flow__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.app-flow__header {
  display: grid;
  gap: 10px;
  max-width: 820px;
}

.app-flow__header h2 {
  margin: 0;
  color: #08312A;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.14;
}

.app-flow__header p {
  margin: 0;
  color: var(--color-text-light);
  font-size: 16px;
  line-height: 1.7;
}

/* Search-depth pages often need two short explanatory paragraphs. Present
   them as an editorial pair on desktop instead of leaving the page visually
   weighted to one side. */
.page-depth-copy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-depth-copy-grid > p {
  max-width: none !important;
  margin: 0 !important;
  color: var(--color-text-light);
  font-size: 16px;
  line-height: 1.7;
}

.page-depth section[id] {
  scroll-margin-top: 140px;
}

@media (min-width: 900px) {
  .page-depth-copy-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(36px, 5vw, 72px);
  }

  .page-depth .app-flow__header {
    max-width: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(36px, 5vw, 72px);
  }

  .page-depth .app-flow__header h2 {
    grid-column: 1 / -1;
  }

  .page-depth .app-benefits__header {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(36px, 5vw, 72px);
    row-gap: 12px;
  }

  .page-depth .app-benefits__header h2 {
    grid-column: 1 / -1;
  }

  .page-depth .app-benefits__header .app-benefits__lead {
    max-width: none;
    margin: 0;
  }
}

.app-flow__corridor {
  position: relative;
  min-height: clamp(240px, 26vw, 360px);
  overflow: hidden;
  border: 1px solid rgba(8,49,42,.14);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,0)),
    linear-gradient(135deg, #08312A 0%, #123F36 100%);
  box-shadow: 0 22px 54px rgba(8,49,42,.12);
  isolation: isolate;
}

.app-flow__corridor::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: .38;
  pointer-events: none;
}

.app-flow__corridor-road {
  position: absolute;
  left: clamp(24px, 5vw, 80px);
  top: 0;
  bottom: 0;
  width: clamp(120px, 16vw, 220px);
  background:
    linear-gradient(90deg, rgba(255,255,255,.08), rgba(255,255,255,.16), rgba(255,255,255,.08)),
    #151D1B;
  transform: skewX(-5deg);
  box-shadow: 22px 0 46px rgba(0,0,0,.18);
}

.app-flow__lane {
  position: absolute;
  left: 50%;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
  background: repeating-linear-gradient(
    180deg,
    rgba(255,255,255,.72) 0 28px,
    transparent 28px 56px
  );
}

.app-flow__lane--one { margin-left: -18%; }
.app-flow__lane--two { margin-left: 18%; }

.app-flow__vehicle {
  position: absolute;
  width: clamp(34px, 3.8vw, 58px);
  height: clamp(82px, 7vw, 118px);
  border-radius: 7px 7px 5px 5px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.72) 0 16%, transparent 16% 22%),
    linear-gradient(180deg, rgba(163,174,156,.96) 0 43%, rgba(128,141,120,.96) 43% 100%);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.22),
    0 10px 24px rgba(0,0,0,.28);
}

.app-flow__vehicle--one {
  left: 20%;
  top: 18%;
}

.app-flow__vehicle--two {
  right: 18%;
  bottom: 16%;
  height: clamp(62px, 5.8vw, 96px);
  background:
    linear-gradient(180deg, rgba(255,255,255,.76) 0 20%, transparent 20% 29%),
    linear-gradient(180deg, rgba(255,255,255,.92) 0 46%, rgba(214,221,211,.92) 46% 100%);
}

.app-flow__vehicle::before,
.app-flow__vehicle::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.app-flow__vehicle::before {
  top: 20%;
  width: 58%;
  height: 28%;
  border-radius: 5px 5px 3px 3px;
  background:
    linear-gradient(90deg, rgba(8,49,42,.36) 0 46%, transparent 46% 54%, rgba(8,49,42,.36) 54% 100%),
    rgba(255,255,255,.42);
  box-shadow:
    0 -14px 0 -8px rgba(255,255,255,.78),
    0 22px 0 -10px rgba(255,255,255,.22);
}

.app-flow__vehicle::after {
  bottom: 8%;
  width: 72%;
  height: 10px;
  border-radius: 999px;
  background:
    radial-gradient(circle at 16% 50%, rgba(8,49,42,.8) 0 4px, transparent 4px),
    radial-gradient(circle at 84% 50%, rgba(8,49,42,.8) 0 4px, transparent 4px),
    linear-gradient(90deg, rgba(255,213,90,.85), rgba(255,213,90,.85));
}

.app-flow__sound {
  position: absolute;
  left: clamp(170px, 20vw, 320px);
  top: 50%;
  width: clamp(130px, 18vw, 260px);
  aspect-ratio: 1;
  border: 1px solid rgba(255,255,255,.22);
  border-left-color: transparent;
  border-bottom-color: transparent;
  border-radius: 50%;
  transform: translateY(-50%) rotate(45deg);
  opacity: .72;
  -webkit-mask-image: linear-gradient(90deg, #000 0 58%, rgba(0,0,0,.35) 68%, transparent 84%);
  mask-image: linear-gradient(90deg, #000 0 58%, rgba(0,0,0,.35) 68%, transparent 84%);
}

.app-flow__sound--two {
  width: clamp(190px, 26vw, 380px);
  opacity: .48;
}

.app-flow__sound--three {
  width: clamp(250px, 34vw, 500px);
  opacity: .24;
}

.app-flow__quiet-zone {
  position: absolute;
  inset: 0 0 0 52%;
  background:
    linear-gradient(90deg, rgba(163,174,156,.18), rgba(163,174,156,.08) 34%, transparent 100%),
    linear-gradient(180deg, transparent 0 56%, rgba(255,255,255,.08) 100%);
  z-index: 1;
  pointer-events: none;
}

.app-flow__verge {
  position: absolute;
  left: calc(52% + clamp(24px, 4vw, 70px));
  right: 0;
  bottom: 0;
  height: 32%;
  background:
    linear-gradient(180deg, rgba(163,174,156,0), rgba(163,174,156,.24)),
    repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 1px, transparent 1px 34px);
  opacity: .82;
  z-index: 1;
  pointer-events: none;
}

.app-flow__corridor-barrier {
  position: absolute;
  left: 52%;
  top: 12%;
  bottom: 12%;
  width: clamp(16px, 2vw, 26px);
  border-radius: 999px;
  background:
    repeating-linear-gradient(
      180deg,
      #A3AE9C 0 18px,
      #7F8D78 18px 20px
    );
  box-shadow:
    0 0 0 1px rgba(255,255,255,.22),
    0 18px 42px rgba(0,0,0,.22);
  z-index: 3;
}

.app-flow__corridor-barrier::after {
  content: "";
  position: absolute;
  left: 100%;
  top: 0;
  bottom: 0;
  width: clamp(72px, 12vw, 170px);
  background: linear-gradient(90deg, rgba(163,174,156,.18), rgba(163,174,156,0));
  pointer-events: none;
}

.app-flow__community-trees {
  position: absolute;
  right: clamp(22px, 6vw, 96px);
  top: 23%;
  display: flex;
  gap: clamp(34px, 5vw, 74px);
  align-items: flex-end;
  z-index: 2;
  opacity: .88;
}

.app-flow__community-trees span {
  position: relative;
  display: block;
  width: clamp(28px, 3vw, 44px);
  height: clamp(42px, 4vw, 60px);
}

.app-flow__community-trees span::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 4px;
  height: 44%;
  transform: translateX(-50%);
  border-radius: 999px;
  background: rgba(255,255,255,.5);
}

.app-flow__community-trees span::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: 100%;
  aspect-ratio: 1;
  transform: translateX(-50%);
  border-radius: 50% 50% 46% 46%;
  background:
    radial-gradient(circle at 35% 32%, rgba(255,255,255,.3), transparent 30%),
    rgba(163,174,156,.82);
  box-shadow:
    -9px 12px 0 -5px rgba(163,174,156,.72),
    10px 14px 0 -6px rgba(255,255,255,.42);
}

.app-flow__community-trees span:nth-child(2) {
  margin-bottom: clamp(18px, 2vw, 30px);
  transform: scale(1.12);
}

.app-flow__community-trees span:nth-child(3) {
  margin-bottom: clamp(6px, 1vw, 16px);
  transform: scale(.9);
}

.app-flow__receivers {
  position: absolute;
  right: clamp(28px, 8vw, 120px);
  top: 50%;
  display: grid;
  grid-template-columns: repeat(3, clamp(42px, 4.8vw, 68px));
  gap: clamp(12px, 2vw, 22px);
  align-items: end;
  transform: translateY(-50%);
  z-index: 4;
}

.app-flow__receivers span {
  position: relative;
  display: block;
  height: clamp(56px, 6.6vw, 88px);
  border-radius: 3px 3px 2px 2px;
  border: 1px solid rgba(255,255,255,.28);
  background:
    linear-gradient(90deg, transparent 0 18%, rgba(8,49,42,.2) 18% 34%, transparent 34% 66%, rgba(8,49,42,.2) 66% 82%, transparent 82% 100%),
    linear-gradient(180deg, rgba(255,255,255,.94), rgba(225,232,222,.92));
  box-shadow: 0 14px 34px rgba(0,0,0,.14);
}

.app-flow__receivers span::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: calc(100% - 3px);
  width: 80%;
  height: 32%;
  border-radius: 2px 2px 0 0;
  background: linear-gradient(135deg, rgba(163,174,156,.96) 0 50%, rgba(125,139,119,.96) 50% 100%);
  border: 1px solid rgba(255,255,255,.24);
  border-bottom: none;
  transform: translateX(-50%) rotate(45deg) skew(-8deg, -8deg);
  transform-origin: center bottom;
}

.app-flow__receivers span::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 8px;
  width: 18%;
  height: 34%;
  border-radius: 2px 2px 0 0;
  transform: translateX(-50%);
  background: rgba(8,49,42,.28);
  box-shadow:
    -16px -18px 0 -5px rgba(8,49,42,.18),
    16px -18px 0 -5px rgba(8,49,42,.18);
}

.app-flow__receivers span:nth-child(2) {
  height: clamp(70px, 8vw, 108px);
}

.app-flow__receivers span:nth-child(2)::before {
  background: linear-gradient(135deg, rgba(255,255,255,.9) 0 50%, rgba(163,174,156,.96) 50% 100%);
}

.app-flow__corridor-label {
  position: absolute;
  bottom: clamp(14px, 2vw, 22px);
  z-index: 4;
  color: rgba(255,255,255,.78);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.2;
}

.app-flow__corridor-label--road {
  left: clamp(24px, 5vw, 80px);
}

.app-flow__corridor-label--barrier {
  left: 52%;
  transform: translateX(-40%);
}

.app-flow__corridor-label--receivers {
  right: clamp(28px, 8vw, 120px);
}

@media (max-width: 760px) {
  .app-flow__corridor {
    min-height: 300px;
  }

  .app-flow__corridor-road {
    left: 20px;
    width: 92px;
  }

  .app-flow__sound {
    left: 92px;
  }

  .app-flow__corridor-barrier {
    left: 49%;
  }

  .app-flow__quiet-zone {
    left: 49%;
  }

  .app-flow__verge {
    left: calc(49% + 26px);
    height: 28%;
  }

  .app-flow__community-trees {
    right: 18px;
    top: 24%;
    gap: 28px;
  }

  .app-flow__community-trees span:nth-child(3) {
    display: none;
  }

  .app-flow__receivers {
    right: 20px;
    grid-template-columns: repeat(2, 34px);
    gap: 12px;
  }

  .app-flow__receivers span:nth-child(3) {
    display: none;
  }

  .app-flow__corridor-label {
    font-size: 11px;
  }

  .app-flow__corridor-label--road {
    left: 20px;
  }

  .app-flow__corridor-label--barrier {
    left: 49%;
  }

  .app-flow__corridor-label--receivers {
    right: 20px;
  }
}

.app-flow__diagram {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 320px);
  gap: clamp(18px, 2.6vw, 30px);
  align-items: stretch;
  overflow: hidden;
  border: 1px solid rgba(8,49,42,.14);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,0)),
    linear-gradient(135deg, #08312A 0%, #123F36 100%);
  box-shadow: 0 22px 54px rgba(8,49,42,.12);
  isolation: isolate;
}

.app-flow__diagram::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: .28;
  pointer-events: none;
}

.app-flow__diagram-field {
  position: relative;
  min-height: clamp(210px, 24vw, 320px);
  overflow: hidden;
  z-index: 1;
}

.app-flow__diagram-note {
  position: relative;
  z-index: 2;
  align-self: stretch;
  display: grid;
  align-content: end;
  gap: 8px;
  padding: clamp(20px, 2.5vw, 30px);
  color: #fff;
  background:
    linear-gradient(90deg, rgba(8,49,42,0), rgba(8,49,42,.44) 18%, rgba(8,49,42,.78));
}

.app-flow__diagram-note strong {
  display: block;
  max-width: 15ch;
  font-family: var(--font-heading);
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.08;
}

.app-flow__diagram-note p {
  max-width: 32ch;
  margin: 0;
  color: rgba(255,255,255,.78);
  font-size: 14px;
  line-height: 1.62;
}

.app-flow__rail-track,
.app-flow__rail-track--return {
  position: absolute;
  left: 8%;
  right: 7%;
  top: 50%;
  height: 2px;
  background: rgba(255,255,255,.58);
  box-shadow:
    0 18px 0 rgba(255,255,255,.26),
    0 -18px 0 rgba(255,255,255,.26);
}

.app-flow__rail-track::before,
.app-flow__rail-track--return::before {
  content: "";
  position: absolute;
  inset: -26px 0;
  background: repeating-linear-gradient(90deg, rgba(255,255,255,.22) 0 2px, transparent 2px 34px);
}

.app-flow__rail-track--return {
  top: 36%;
  opacity: .52;
}

.app-flow__rail-train {
  position: absolute;
  left: 12%;
  top: 30%;
  display: flex;
  gap: 8px;
  transform: translateY(-50%);
}

.app-flow__rail-train span {
  width: clamp(54px, 7vw, 90px);
  height: 30px;
  border-radius: 5px;
  background:
    linear-gradient(90deg, rgba(255,255,255,.74) 0 20%, transparent 20% 30%, rgba(255,255,255,.74) 30% 50%, transparent 50% 62%, rgba(255,255,255,.74) 62% 82%, transparent 82%),
    rgba(163,174,156,.88);
  box-shadow: 0 12px 30px rgba(0,0,0,.2);
}

.app-flow__rail-barrier,
.app-flow__boundary-barrier,
.app-flow__utility-barrier,
.app-flow__urban-barrier,
.app-flow__data-barrier {
  position: absolute;
  display: flex;
  gap: 4px;
  align-items: end;
  z-index: 3;
}

.app-flow__rail-barrier {
  left: 18%;
  right: 14%;
  bottom: 23%;
}

.app-flow__rail-barrier span,
.app-flow__boundary-barrier span,
.app-flow__utility-barrier span,
.app-flow__urban-barrier span,
.app-flow__data-barrier span {
  flex: 1;
  min-width: 16px;
  height: clamp(42px, 5vw, 70px);
  border-radius: 2px 2px 0 0;
  background:
    repeating-linear-gradient(0deg, rgba(8,49,42,.18) 0 1px, transparent 1px 12px),
    #A3AE9C;
  box-shadow: 0 8px 22px rgba(0,0,0,.18);
}

.app-flow__rail-window {
  position: absolute;
  left: 12%;
  right: 10%;
  bottom: 9%;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.18);
  color: rgba(255,255,255,.78);
  font-size: 11px;
  font-weight: 700;
  text-align: center;
}

.app-flow__rail-window span {
  padding: 7px 8px;
  background: rgba(255,255,255,.08);
}

.app-flow__plant {
  position: absolute;
  left: 10%;
  bottom: 20%;
  display: flex;
  align-items: end;
  gap: 10px;
}

.app-flow__plant span {
  width: clamp(52px, 6vw, 84px);
  height: clamp(70px, 8vw, 118px);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 4px 4px 0 0;
  background:
    linear-gradient(90deg, rgba(255,255,255,.18) 0 14%, transparent 14% 28%, rgba(255,255,255,.18) 28% 42%, transparent 42% 56%, rgba(255,255,255,.18) 56% 70%, transparent 70%),
    rgba(255,255,255,.72);
}

.app-flow__plant span:nth-child(2) {
  height: clamp(92px, 10vw, 146px);
  background:
    linear-gradient(180deg, rgba(163,174,156,.96), rgba(163,174,156,.72));
}

.app-flow__source-waves span {
  position: absolute;
  left: 34%;
  top: 48%;
  width: clamp(94px, 13vw, 190px);
  aspect-ratio: 1;
  border: 1px solid rgba(255,255,255,.22);
  border-left-color: transparent;
  border-bottom-color: transparent;
  border-radius: 50%;
  transform: translateY(-50%) rotate(45deg);
  opacity: .48;
}

.app-flow__source-waves span:nth-child(2) { width: clamp(140px, 18vw, 260px); opacity: .3; }
.app-flow__source-waves span:nth-child(3) { width: clamp(188px, 23vw, 340px); opacity: .18; }

.app-flow__boundary-barrier {
  left: 53%;
  top: 22%;
  bottom: 18%;
  flex-direction: column;
  width: 24px;
}

.app-flow__boundary-barrier span,
.app-flow__utility-barrier span,
.app-flow__urban-barrier span,
.app-flow__data-barrier span {
  width: 100%;
}

.app-flow__quiet-boundary,
.app-flow__amenity-wash,
.app-flow__receiver-edge {
  position: absolute;
  inset: 0 0 0 54%;
  background: linear-gradient(90deg, rgba(163,174,156,.18), rgba(163,174,156,.04) 70%, transparent);
}

.app-flow__weather-lines span {
  position: absolute;
  right: 13%;
  width: clamp(80px, 12vw, 150px);
  height: 1px;
  background: rgba(255,255,255,.18);
  transform: rotate(-12deg);
}

.app-flow__weather-lines span:nth-child(1) { top: 26%; }
.app-flow__weather-lines span:nth-child(2) { top: 38%; right: 19%; }
.app-flow__weather-lines span:nth-child(3) { top: 50%; }

.app-flow__utility-nodes {
  position: absolute;
  left: 9%;
  top: 50%;
  display: flex;
  gap: clamp(28px, 4vw, 60px);
  transform: translateY(-50%);
}

.app-flow__utility-nodes span {
  width: clamp(58px, 7vw, 92px);
  aspect-ratio: 1;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.82), rgba(255,255,255,.58)),
    rgba(163,174,156,.4);
  box-shadow: 0 14px 34px rgba(0,0,0,.16);
}

.app-flow__utility-nodes span::before {
  content: "";
  display: block;
  width: 42%;
  height: 42%;
  margin: 29%;
  border-radius: 50%;
  background: rgba(8,49,42,.36);
}

.app-flow__utility-connection,
.app-flow__continuity-line {
  position: absolute;
  left: 12%;
  right: 18%;
  top: 50%;
  height: 2px;
  background: linear-gradient(90deg, rgba(255,255,255,.18), rgba(163,174,156,.8), rgba(255,255,255,.18));
}

.app-flow__utility-barrier {
  right: 23%;
  top: 22%;
  bottom: 20%;
  flex-direction: column;
  width: 24px;
}

.app-flow__permit-file {
  position: absolute;
  right: 8%;
  top: 28%;
  width: clamp(54px, 6vw, 82px);
  height: clamp(70px, 7vw, 104px);
  border-radius: 4px;
  background:
    linear-gradient(135deg, transparent 0 13%, rgba(8,49,42,.18) 13% 22%, transparent 22%),
    linear-gradient(180deg, rgba(255,255,255,.94), rgba(225,232,222,.9));
  box-shadow: 0 16px 38px rgba(0,0,0,.16);
}

.app-flow__continuity-line {
  top: auto;
  bottom: 19%;
  left: 12%;
  right: 8%;
  height: 1px;
  background: repeating-linear-gradient(90deg, rgba(255,255,255,.36) 0 18px, transparent 18px 30px);
}

.app-flow__urban-road {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 42%;
  height: 44%;
  background:
    linear-gradient(90deg, rgba(255,255,255,.08), rgba(255,255,255,.16), rgba(255,255,255,.08)),
    #151D1B;
  transform: skewX(-8deg);
  transform-origin: bottom left;
}

.app-flow__urban-road::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: repeating-linear-gradient(180deg, rgba(255,255,255,.7) 0 24px, transparent 24px 46px);
}

.app-flow__urban-barrier {
  left: 38%;
  bottom: 16%;
  width: 22%;
}

.app-flow__urban-landscape {
  position: absolute;
  left: 46%;
  right: 12%;
  bottom: 0;
  height: 34%;
  background:
    linear-gradient(180deg, rgba(163,174,156,0), rgba(163,174,156,.3)),
    repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 1px, transparent 1px 30px);
}

.app-flow__urban-landscape span {
  position: absolute;
  bottom: 36%;
  width: 26px;
  height: 42px;
}

.app-flow__urban-landscape span::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 4px;
  height: 42%;
  background: rgba(255,255,255,.48);
  transform: translateX(-50%);
}

.app-flow__urban-landscape span::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(163,174,156,.86);
  transform: translateX(-50%);
}

.app-flow__urban-landscape span:nth-child(1) { left: 8%; }
.app-flow__urban-landscape span:nth-child(2) { left: 33%; bottom: 48%; transform: scale(1.18); }
.app-flow__urban-landscape span:nth-child(3) { left: 62%; transform: scale(.9); }

.app-flow__urban-homes,
.app-flow__data-blocks {
  position: absolute;
  right: 8%;
  top: 28%;
  display: flex;
  gap: 12px;
  align-items: end;
  z-index: 3;
}

.app-flow__urban-homes span {
  position: relative;
  width: clamp(38px, 4.4vw, 60px);
  height: clamp(52px, 5.6vw, 78px);
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 3px;
  background: linear-gradient(180deg, rgba(255,255,255,.94), rgba(225,232,222,.9));
}

.app-flow__urban-homes span::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: calc(100% - 2px);
  width: 78%;
  height: 30%;
  background: rgba(163,174,156,.96);
  transform: translateX(-50%) rotate(45deg) skew(-8deg, -8deg);
}

.app-flow__urban-homes span:nth-child(2) {
  height: clamp(66px, 6.8vw, 94px);
}

.app-flow__data-blocks {
  left: 9%;
  right: auto;
  top: auto;
  bottom: 20%;
}

.app-flow__data-blocks span {
  width: clamp(58px, 6vw, 86px);
  height: clamp(82px, 8vw, 122px);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 4px 4px 0 0;
  background:
    repeating-linear-gradient(180deg, rgba(255,255,255,.18) 0 2px, transparent 2px 14px),
    rgba(255,255,255,.72);
}

.app-flow__data-blocks span:nth-child(2) {
  height: clamp(106px, 10vw, 154px);
  background:
    repeating-linear-gradient(180deg, rgba(255,255,255,.22) 0 2px, transparent 2px 14px),
    rgba(163,174,156,.86);
}

.app-flow__cooling-line {
  position: absolute;
  left: 15%;
  right: 18%;
  top: 38%;
  display: flex;
  justify-content: space-between;
}

.app-flow__cooling-line span {
  width: clamp(54px, 7vw, 94px);
  height: clamp(54px, 7vw, 94px);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 50%;
  background:
    conic-gradient(from 0deg, rgba(255,255,255,.62), transparent 18%, rgba(255,255,255,.62) 34%, transparent 52%, rgba(255,255,255,.62) 68%, transparent 84%, rgba(255,255,255,.62));
  opacity: .54;
}

.app-flow__data-barrier {
  right: 23%;
  top: 18%;
  bottom: 18%;
  flex-direction: column;
  width: 24px;
}

.app-flow__uptime-ring {
  position: absolute;
  right: 8%;
  top: 26%;
  width: clamp(72px, 8vw, 112px);
  aspect-ratio: 1;
  border: 2px solid rgba(163,174,156,.74);
  border-radius: 50%;
  box-shadow: inset 0 0 0 12px rgba(255,255,255,.06);
}

.app-flow__uptime-ring::before,
.app-flow__uptime-ring::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: rgba(255,255,255,.72);
  transform-origin: left center;
}

.app-flow__uptime-ring::before {
  width: 30%;
  height: 2px;
  transform: rotate(-12deg);
}

.app-flow__uptime-ring::after {
  width: 23%;
  height: 2px;
  transform: rotate(-90deg);
}

@media (max-width: 760px) {
  .app-flow__diagram {
    grid-template-columns: 1fr;
  }

  .app-flow__diagram-field {
    min-height: 260px;
  }

  .app-flow__diagram-note {
    background: rgba(8,49,42,.58);
  }

  .app-flow__diagram-note strong,
  .app-flow__diagram-note p {
    max-width: none;
  }

  .app-flow__rail-window {
    left: 8%;
    right: 8%;
    font-size: 10px;
  }

  .app-flow__urban-homes span:nth-child(3),
  .app-flow__data-blocks span:nth-child(3),
  .app-flow__cooling-line span:nth-child(3) {
    display: none;
  }
}

.app-flow__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 820px) {
  .app-flow__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.app-flow__step {
  position: relative;
  display: grid;
  gap: 10px;
  align-content: start;
  min-height: 100%;
  padding: clamp(18px, 2vw, 24px);
  border: 1px solid rgba(8,49,42,.12);
  border-radius: 8px;
  background: linear-gradient(180deg, #fff 0%, rgba(247,249,248,.86) 100%);
  box-shadow: 0 14px 36px rgba(8,49,42,.06);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

@media (min-width: 820px) {
  .app-flow__step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 32px;
    right: -12px;
    width: 12px;
    height: 1px;
    background: rgba(8,49,42,.24);
  }
}

@media (hover: hover) {
  .app-flow__step:hover {
    transform: translateY(-4px);
    border-color: rgba(8,49,42,.24);
    box-shadow: 0 22px 46px rgba(8,49,42,.1);
  }
}

.app-flow__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-width: 34px;
  min-height: 34px;
  padding: 0 10px;
  border-radius: 999px;
  background: #08312A;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .05em;
  line-height: 1;
  text-transform: uppercase;
}

.app-flow__step h3 {
  margin: 0;
  color: #08312A;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.28;
}

.app-flow__step p {
  margin: 0;
  color: rgba(8,49,42,.72);
  font-size: 14px;
  line-height: 1.58;
}


/* ============================================
   WHY AIR SECTION
   
   5-column card grid. Each card has a dark green
   header with uppercase label + icon, then white
   body with subheading and description.
   ============================================ */

.app-why {
  background: #fff;
}

.app-why__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.app-why__inner > h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin: 0 0 12px;
  font-family: var(--font-heading);
}

.app-why__inner > p {
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: clamp(28px, 4vw, 48px);
  max-width: 90ch;
}

.app-why__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 600px) {
  .app-why__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .app-why__grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.app-why__card {
  border: 1px solid rgba(8,49,42,.12);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 30px rgba(8,49,42,.04);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
@media (hover: hover) {
  .app-why__card:hover {
    transform: translateY(-5px);
    border-color: rgba(8,49,42,.24);
    box-shadow: 0 20px 44px rgba(8,49,42,.1);
  }
}

.app-why__card-header {
  background: var(--color-primary-dark);
  color: #fff;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 3px solid #A3AE9C;
}

.app-why__card-label {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-family: var(--font-body);
}

.app-why__card-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  filter: brightness(0) invert(1);
}

.app-why__card-body {
  padding: 20px 18px;
  flex: 1;
}

.app-why__card-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 10px;
  line-height: 1.35;
  font-family: var(--font-heading);
}

.app-why__card-body p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-light);
  margin: 0;
}

.app-why__card-body ul {
  list-style: disc;
  padding-left: 18px;
  margin: 0;
}

.app-why__card-body li {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-light);
  margin-bottom: 6px;
}


/* ============================================
   BENEFITS SECTION
   
   3x2 grid of icon cards. Each has icon badge
   on the left, title + description on the right.
   ============================================ */

.app-benefits {
  background: var(--color-off-white);
}

.app-benefits__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.app-benefits__header {
  margin: 0 0 clamp(28px, 4vw, 48px);
}

.app-benefits__header h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin: 0;
  font-family: var(--font-heading);
}

.app-benefits__lead {
  max-width: 720px;
  margin: 12px 0 0;
  color: var(--color-text-light);
  font-size: clamp(1rem, 1.25vw, 1.1rem);
  line-height: 1.7;
}

.app-benefits__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 600px) {
  .app-benefits__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .app-benefits__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.app-benefits__card {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 16px;
  padding: clamp(20px, 2.5vw, 28px);
  min-height: 178px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.98), rgba(247,249,245,.96)),
    #fff;
  border: 1px solid rgba(8,49,42,.12);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(8,49,42,.04);
  position: relative;
  overflow: hidden;
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease, background .28s ease;
}

.app-benefits__card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, #A3AE9C, rgba(8,49,42,.5));
  opacity: .85;
}

@media (hover: hover) {
  .app-benefits__card:hover {
    transform: translateY(-4px);
    border-color: rgba(8,49,42,.22);
    box-shadow: 0 18px 40px rgba(8,49,42,.1);
  }
}

.app-benefits__icon-wrap {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(8,49,42,.12);
  border-radius: 999px;
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(8,49,42,.06);
}

.app-benefits__icon-wrap img {
  width: 24px;
  height: 24px;
}

.app-benefits__card h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 8px;
  font-family: var(--font-heading);
}

.app-benefits__card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-light);
  margin: 0;
}


/* ============================================
   SPECIFICATION SECTION
   
   Two-column spec list in bordered cards.
   Expandable "Technical documents" bar below.
   ============================================ */

.app-spec {
  background: #fff;
}

.app-spec__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.app-spec__inner > h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin: 0 0 clamp(24px, 3vw, 40px);
  font-family: var(--font-heading);
}

.app-spec__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid rgba(0,0,0,.1);
}

.app-evidence {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 36px);
}

@media (min-width: 760px) {
  .app-evidence {
    grid-template-columns: repeat(3, 1fr);
  }
}

.app-evidence__card {
  position: relative;
  min-height: 160px;
  padding: clamp(18px, 2vw, 24px);
  border: 1px solid rgba(8,49,42,.12);
  border-radius: 8px;
  background: linear-gradient(180deg, #fff 0%, rgba(247,249,248,.78) 100%);
  color: #08312A;
  box-shadow: 0 12px 34px rgba(8,49,42,.06);
  overflow: hidden;
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.app-evidence__card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: #A3AE9C;
}

@media (hover: hover) {
  .app-evidence__card:hover {
    transform: translateY(-4px);
    border-color: rgba(8,49,42,.22);
    box-shadow: 0 20px 46px rgba(8,49,42,.11);
  }
}

.app-evidence__label {
  display: block;
  margin-bottom: 12px;
  color: rgba(8,49,42,.68);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.app-evidence__card strong {
  display: block;
  margin-bottom: 8px;
  color: #08312A;
  font-family: var(--font-heading);
  font-size: clamp(20px, 2.2vw, 28px);
  line-height: 1.1;
}

.app-evidence__card p {
  margin: 0;
  color: rgba(8,49,42,.74);
  font-size: 14px;
  line-height: 1.55;
}

@media (min-width: 700px) {
  .app-spec__grid {
    grid-template-columns: 1fr 1fr;
  }

  .app-spec__col + .app-spec__col {
    border-left: 1px solid rgba(0,0,0,.1);
  }
}

.app-spec__col {
  padding: clamp(20px, 2.5vw, 32px);
}

.app-spec__col ul {
  list-style: disc;
  padding-left: 20px;
  margin: 0;
}

.app-spec__col li {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 10px;
  color: var(--color-text);
}

.app-spec__col li strong {
  font-weight: 700;
}

.app-spec__col li:last-child {
  margin-bottom: 0;
}

/* Technical documents expandable bar */
.app-spec__docs {
  margin-top: clamp(24px, 3vw, 40px);
}

.app-spec__docs-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--color-primary-dark);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-body);
  transition: background .2s ease;
}

.app-spec__docs-toggle:hover {
  background: #0f2e1f;
}

.app-spec__docs-toggle svg {
  width: 20px;
  height: 20px;
  stroke: #fff;
  transition: transform .25s ease;
}

.app-spec__docs-toggle[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.app-spec__docs-panel {
  display: none;
  background: #f9faf9;
  border: 1px solid rgba(0,0,0,.1);
  border-top: none;
  padding: 20px 24px;
}

.app-spec__docs-panel.is-open {
  display: block;
}

.app-spec__docs-panel a,
.app-spec__docs-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary-dark);
  font-weight: 600;
  font-size: 14px;
  font-family: var(--font-body);
  text-decoration: none;
  padding: 8px 0;
  background: none;
  border: none;
  cursor: pointer;
}

.app-spec__docs-panel a:hover,
.app-spec__docs-link:hover {
  text-decoration: underline;
}

.app-spec__docs-panel a + a,
.app-spec__docs-link + .app-spec__docs-link {
  margin-left: 32px;
}

.app-spec__docs-panel svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}


/* ============================================
   FAQs SECTION
   
   Dark green background with 2-column grid
   of accordion items. Chevron rotates on open.
   ============================================ */

.app-faqs {
  --faq-bg: #08312A;
  background: var(--faq-bg);
  color: #fff;
}

.app-faqs__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.app-faqs__inner > h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin: 0 0 12px;
  color: #fff;
  font-family: var(--font-heading);
}

.app-faqs__inner > p {
  color: rgba(255,255,255,.8);
  line-height: 1.7;
  margin-bottom: clamp(28px, 4vw, 48px);
  max-width: 70ch;
}

.app-faqs__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 700px) {
  .app-faqs__grid {
    grid-template-columns: 1fr 1fr;
  }
}

.app-faq {
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(255,255,255,.045);
  box-shadow: 0 14px 34px rgba(0,0,0,.06);
  transition: border-color .25s ease, background .25s ease, transform .25s ease;
}

.app-faq:has(.app-faq__question[aria-expanded="true"]) {
  border-color: rgba(255,255,255,.32);
  background: rgba(255,255,255,.075);
}

@media (hover: hover) {
  .app-faq:hover {
    transform: translateY(-2px);
    border-color: rgba(255,255,255,.26);
  }
}

.app-faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: transparent;
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-body);
  text-align: left;
  line-height: 1.4;
  outline: none;
  transition: background .2s ease, color .2s ease;
}

.app-faq__question:hover {
  background: rgba(255,255,255,.06);
}

.app-faq__question:focus-visible {
  background: rgba(255,255,255,.1);
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.42);
}

.app-faq__question svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  stroke: rgba(255,255,255,.7);
  transition: transform .25s ease;
}

.app-faq__question[aria-expanded="true"] svg {
  transform: rotate(90deg);
}

.app-faq__answer {
  display: grid;
  grid-template-rows: 0fr;
  padding: 0 20px;
  color: rgba(255,255,255,.85);
  font-size: 14px;
  line-height: 1.7;
  opacity: .72;
  transition: grid-template-rows .32s ease, padding .32s ease, opacity .24s ease;
}

.app-faq__answer > * {
  overflow: hidden;
}

.app-faq__answer.is-open {
  grid-template-rows: 1fr;
  padding-bottom: 20px;
  opacity: 1;
}

.app-faq__answer p {
  margin: 0;
}


/* ============================================
   PAGE LAYOUT OVERRIDES
   
   Application pages need the header to overlay
   the hero. These rules handle that stacking.
   ============================================ */

.page-app .site-header {
  position: fixed;
}

/* Remove the default section border from
   sections that already exist on the homepage
   and are being reused on application pages */
.page-app .app-hero,
.page-app .app-subnav {
  border-top: none;
}