.story-breadcrumb { padding: 18px 0; font-size: .875rem; color: var(--muted); }
.story-breadcrumb ol { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; margin: 0; padding: 0; }
.story-breadcrumb li + li::before { content: '/'; margin-right: 10px; }
.story-breadcrumb a { color: var(--navy); text-decoration: underline; text-underline-offset: 3px; }
.case-hero { position: relative; isolation: isolate; overflow: hidden; display: flex; align-items: center; min-height: clamp(560px,45vw,680px); background: var(--navy-dark); color: #e3ebf3; padding: 72px 0 44px; }
.case-hero-media { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg,rgba(var(--palette-dark-rgb, 4,15,33),.94) 0%,rgba(var(--palette-dark-rgb, 4,15,33),.79) 42%,rgba(var(--palette-dark-rgb, 4,15,33),.3) 100%),url("solar-home-hero.jpg") center 55% / cover no-repeat; }
.case-hero-content { max-width: 680px; }
.case-hero h1 { color: #fff; font-size: clamp(2.4rem,4.4vw,4rem); letter-spacing: -.035em; }
.case-hero .case-lead { margin: 24px 0 0; font-size: 1.125rem; }
.case-status { display: inline-block; padding: 7px 12px; margin: 0 0 22px; border: 1px solid #708299; border-radius: 4px; color: #e3ebf3; font-size: .8125rem; font-weight: 700; }
.case-hero .btn-primary, .error-main .btn-primary { color: var(--navy-dark); }
.case-image-caption { max-width: 680px; margin: 40px 0 0; color: #d1dce7; font-size: .8125rem; }
.case-intro-note { margin: 32px auto 0; padding: 20px 24px; background: var(--palette-accent-soft, #fff6e9); border-left: 4px solid var(--orange); border-radius: 4px; }
.case-intro-note p { margin: 0; }
.case-facts { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); margin: 32px 0 0; padding: 0; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.case-facts > div { padding: 24px; background: #fff; border-right: 1px solid var(--line); }
.case-facts > div:last-child { border: 0; }
.case-facts dt { color: var(--muted); font-size: .8125rem; font-weight: 750; letter-spacing: .04em; text-transform: uppercase; }
.case-facts dd { margin: 8px 0 0; color: var(--navy); font-weight: 750; font-size: 1.0625rem; }
.case-facts dd small { display: block; color: var(--muted); font-size: .8125rem; font-weight: 400; }
.case-layout { display: grid; grid-template-columns: minmax(0,1.5fr) minmax(260px,1fr); gap: 64px; align-items: start; }
.case-copy > p { color: var(--muted); font-size: 1.0625rem; }
.case-panel { padding: 30px; border: 1px solid var(--line); border-top: 4px solid var(--orange); border-radius: 12px; background: #fff; }
.case-panel h3 { font-size: 1.45rem; }
.case-panel p { color: var(--muted); }
.case-panel ul { color: var(--muted); padding-left: 20px; }
.case-panel li { margin: 10px 0; }
.case-journey { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; counter-reset: case-step; }
.case-journey li { position: relative; display: grid; grid-template-columns: 54px minmax(0,1fr); gap: 22px; padding: 26px; background: #fff; border: 1px solid var(--line); border-radius: 12px; counter-increment: case-step; }
.case-journey li::before { content: '0' counter(case-step); display: grid; place-items: center; align-self: start; width: 54px; height: 54px; border-radius: 50%; background: var(--navy); color: var(--orange); font-size: 1.125rem; font-weight: 800; }
.case-journey h3 { font-size: 1.3rem; }
.case-journey p { margin: 10px 0 0; color: var(--muted); }
.case-results-note { margin: 0 0 30px; color: var(--muted); }
.case-result-state { display: inline-block; color: #76501b; background: var(--palette-accent-soft, #fff3df); font-size: .8125rem; padding: 5px 9px; margin-bottom: 18px; font-weight: 700; border-radius: 4px; }
.case-gallery { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.case-gallery figure { margin: 0; min-width: 0; }
.case-gallery .placeholder { aspect-ratio: 8/5; display: grid; place-items: center; padding: 28px; text-align: center; background: repeating-linear-gradient(135deg,#e5edf5 0 14px,#f0f5fa 14px 28px); border: 1px dashed #97adc2; border-radius: 12px; color: var(--navy); font-size: 1rem; font-weight: 750; }
.case-gallery figcaption { margin-top: 12px; color: var(--muted); font-size: .9375rem; }
.case-study-main a:focus-visible, .case-study-main button:focus-visible, .error-main a:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }
.case-next { display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.case-next > div { max-width: 750px; }
.case-next p { color: #ccd9e5; }
.case-next .btn { flex-shrink: 0; }
.case-study-main [id] { scroll-margin-top: 180px; }
.error-main { background: var(--soft); }
.error-hero { padding: 76px 0 64px; text-align: center; background: var(--navy-dark); color: #d7e4ef; }
.error-code { margin: 0 0 16px; color: var(--orange); font-weight: 850; font-size: clamp(5rem,12vw,9rem); line-height: 1; letter-spacing: -.07em; }
.error-hero h1 { color: #fff; font-size: clamp(2rem,4.5vw,3.5rem); letter-spacing: -.03em; }
.error-hero p:not(.error-code):not(.eyebrow) { max-width: 620px; margin: 24px auto 0; font-size: 1.125rem; }
.error-hero .actions { justify-content: center; }
.error-options { padding: 52px 0 64px; }
.error-options h2 { font-size: clamp(1.6rem,3vw,2.2rem); margin-bottom: 28px; }
.error-option { display: block; padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: 12px; }
.error-option h3 { display: flex; justify-content: space-between; gap: 14px; font-size: 1.25rem; }
.error-option h3 span { color: var(--palette-accent-ink, #a75a00); }
.error-option p { margin: 14px 0 0; color: var(--muted); }
.error-option:hover { border-color: var(--orange); box-shadow: 0 8px 22px #0b2a4a10; }
.error-contact { margin: 28px 0 0; color: var(--muted); text-align: center; }
.error-contact a { font-weight: 750; color: var(--navy); text-decoration: underline; text-underline-offset: 3px; }
@media(max-width:980px) {
  .case-layout { gap: 32px; }
  .case-facts { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .case-facts > div { border-bottom: 1px solid var(--line); }
  .case-facts > div:nth-child(2) { border-right: 0; }
  .case-facts > div:nth-child(3) { border-bottom: 0; }
}
@media(max-width:780px) {
  .case-layout, .case-gallery { grid-template-columns: minmax(0,1fr); }
  .case-hero { min-height: 540px; padding: 48px 0 32px; }
  .case-hero-media { background-position: 62% center; background-image: linear-gradient(90deg,rgba(var(--palette-dark-rgb, 4,15,33),.9),rgba(var(--palette-dark-rgb, 4,15,33),.7)),url("solar-home-hero.jpg"); }
  .case-next { flex-direction: column; align-items: flex-start; }
  .case-journey li { gap: 16px; padding: 20px; grid-template-columns: 42px minmax(0,1fr); }
  .case-journey li::before { width: 42px; height: 42px; font-size: .9375rem; }
  .error-hero { padding: 52px 0; }
}
@media(min-width:1025px) and (hover:hover) and (pointer:fine) and (prefers-reduced-motion:no-preference) {
  .case-hero-media { background-attachment: fixed; }
}
@media(max-width:420px) {
  .case-facts { grid-template-columns: 1fr; }
  .case-facts > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .case-facts > div:nth-child(3) { border-bottom: 1px solid var(--line); }
}