/* Engineering project case study. */
.case-study { --case-line: rgba(74,222,128,.20); }
.case-study .section { padding-block: 70px; }
.case-study .case-hero { padding-top: 132px; padding-bottom: 48px; }
.case-back { display: inline-block; margin-bottom: 36px; color: var(--muted); font-size: .88rem; }
.case-back:hover { color: var(--emerald); }
.case-hero-grid { display: grid; grid-template-columns: 1.12fr 1fr; align-items: center; gap: 48px; }
.case-hero h1 { font-size: clamp(2.9rem,5.1vw,5rem); letter-spacing: -.055em; line-height: 1.02; }
.case-title-dot { color: var(--emerald); }
.case-lead { max-width: 650px; font-size: clamp(1.15rem,1.6vw,1.4rem); line-height: 1.5; color: #d3e9da; }
.case-intro { color: var(--muted); margin-bottom: 25px; }
.case-scan { margin: 0; padding: 14px; border: 1px solid var(--case-line); border-radius: 24px; background: #07120c; }
.case-scan img { border-radius: 14px; height: auto; }
.case-scan figcaption { padding: 12px 10px 4px; color: var(--muted); font-size: .79rem; }
.case-facts { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 24px; margin: 48px 0 0; padding: 28px 0; border-block: 1px solid var(--case-line); }
.case-facts dt { color: var(--muted); font-size: .76rem; margin-bottom: 8px; }
.case-facts dd { margin: 0; font-family: "Space Grotesk",sans-serif; font-size: .98rem; }
.case-jump { width: min(var(--max-width),calc(100% - 40px)); margin-inline: auto; display: flex; flex-wrap: wrap; gap: 10px 24px; padding-bottom: 25px; border-bottom: 1px solid var(--case-line); }
.case-jump a { color: var(--emerald); font-size: .85rem; padding-block: 6px; }
.case-section { display: grid; grid-template-columns: 190px minmax(0,1fr); gap: 48px; border-bottom: 1px solid var(--case-line); }
.case-section-label span { color: var(--emerald); font-family: monospace; font-size: .8rem; }
.case-section-label p { color: var(--muted); font-size: .9rem; margin-top: 10px; }
.case-section-body { min-width: 0; }
.case-section-body h2 { margin: 0 0 25px; font-size: clamp(1.9rem,3vw,3rem); line-height: 1.12; letter-spacing: -.035em; }
.case-section-body h3 { margin-top: 0; font-size: 1.2rem; line-height: 1.35; }
.case-prose { color: #acbfb2; max-width: 790px; margin: 0 0 25px; }
.case-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; margin-block: 28px; }
.case-card { min-width: 0; border: 1px solid var(--case-line); background: rgba(9,22,15,.65); padding: 27px; border-radius: 18px; }
.case-card p { color: var(--muted); font-size: .95rem; }
.case-card p:last-child { margin-bottom: 0; }
.case-card .eyebrow { display: block; color: var(--emerald); font-size: .67rem; margin-bottom: 14px; }
.case-credit,.case-note { font-size: .88rem; color: var(--muted); border-left: 2px solid var(--emerald-deep); padding-left: 18px; }
.case-pipeline { list-style: none; padding: 0; margin: 30px 0; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; }
.case-pipeline li { border: 1px solid var(--case-line); border-radius: 14px; padding: 22px; min-width: 0; }
.case-pipeline span { color: var(--emerald); font-size: .7rem; }
.case-pipeline strong { display: block; margin-top: 16px; font-size: .95rem; overflow-wrap: anywhere; }
.case-pipeline p { color: var(--muted); font-size: .86rem; margin-bottom: 0; }
.case-table { width: 100%; border-collapse: collapse; font-size: .91rem; }
.case-table caption { text-align: left; font-weight: 700; padding: 12px 0 18px; }
.case-table th,.case-table td { text-align: left; padding: 16px; border-bottom: 1px solid var(--case-line); vertical-align: top; }
.case-table thead { background: rgba(74,222,128,.06); color: var(--emerald); }
.case-table tbody th { width: 35%; font-weight: 500; }
.case-table td { color: var(--muted); }
.case-details { margin-top: 25px; padding: 20px 22px; border: 1px solid var(--case-line); border-radius: 14px; }
.case-details summary { cursor: pointer; color: var(--emerald); font-weight: 600; }
.case-commands { display: grid; gap: 14px; }
.case-commands > div { display: grid; grid-template-columns: 150px 1fr; gap: 16px; }
.case-commands dd { margin: 0; color: var(--muted); }
.case-commands kbd { display: inline-block; padding: 2px 6px; border: 1px solid var(--case-line); border-radius: 4px; }
.case-equation { padding: 26px; margin-bottom: 26px; border-radius: 14px; background: rgba(74,222,128,.045); }
.case-equation span { display: block; color: var(--muted); font-size: .8rem; }
.case-equation code { display: block; margin-block: 12px; font-size: clamp(1.1rem,2.5vw,1.7rem); }
.case-equation p { font-size: .9rem; color: var(--muted); margin-bottom: 0; }
.case-choices article { border-top: 1px solid var(--case-line); padding-block: 25px; }
.case-choices p { color: var(--muted); margin-bottom: 0; }
.case-log { margin: 28px 0; overflow: hidden; background: #030806; border: 1px solid var(--case-line); border-radius: 14px; }
.case-log figcaption { padding: 14px 20px; font-size: .77rem; color: var(--muted); border-bottom: 1px solid var(--case-line); }
.case-log pre { margin: 0; padding: 22px; white-space: pre-wrap; overflow-wrap: anywhere; }
.case-log code { font-size: .82rem; }
.case-outcome { margin-top: 32px; padding: 30px; border: 1px solid var(--case-line); border-radius: 18px; background: linear-gradient(120deg,rgba(74,222,128,.07),transparent); }
.case-outcome p:last-child { color: var(--muted); margin-bottom: 0; }
.case-study .section-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.case-study a:focus-visible,.case-study summary:focus-visible { outline: 2px solid var(--emerald); outline-offset: 5px; }
.skip-case { position: fixed; top: -100px; left: 20px; padding: 12px 20px; background: var(--emerald); color: #031008; z-index: 6000; }
.skip-case:focus { top: 12px; }
@media(max-width:1100px) { .case-hero-grid { gap: 26px; } .case-section { grid-template-columns: 145px minmax(0,1fr); gap: 30px; } }
@media(max-width:960px) { .case-hero-grid { grid-template-columns: 1fr; } .case-scan { max-width: 600px; } .case-section { grid-template-columns: 1fr; gap: 20px; } .case-section-label { display: flex; align-items: center; gap: 16px; } .case-section-label p { margin: 0; } }
@media(max-width:640px) {
  .case-study .case-hero { padding-top: 110px; }
  .case-study .section { padding-bottom: 45px; }
  .case-study .case-section { padding-top: 45px; }
  .case-hero h1 { font-size: clamp(2.5rem,10vw,3.8rem); }
  .case-facts { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px 16px; }
  .case-grid,.case-pipeline { grid-template-columns: 1fr; }
  .case-card { padding: 22px; }
  .case-jump { width: calc(100% - 26px); gap: 8px 20px; }
  .case-table th,.case-table td { padding: 13px 8px; font-size: .82rem; }
  .case-commands > div { grid-template-columns: 1fr; gap: 6px; }
  .case-equation,.case-outcome { padding: 22px; }
}