.case-study-page .site-header { position: sticky; }
.case-study-page h1 { max-width: 900px; }
.case-breadcrumb { color: var(--muted); display: flex; gap: 10px; align-items: center; margin-bottom: 26px; }
.case-breadcrumb a:hover { color: var(--lime); }
.case-hero { padding-top: 42px; }
.case-hero-grid { display: grid; grid-template-columns: minmax(0,1.7fr) minmax(300px,.9fr); gap: 64px; align-items: end; padding: 22px 0 54px; }
.case-hero-copy .eyebrow { color: var(--lime); margin: 0 0 18px; }
.case-hero-copy h1 { margin-bottom: 26px; }
.case-lead { max-width: 730px; color: #b9c6d8; font-size: 19px; line-height: 1.65; margin: 0 0 28px; }
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.case-tags span { border: 1px solid #37445a; border-radius: 4px; padding: 5px 10px; color: #c1ccdc; font-size: 12px; }
.case-hero-panel { background: var(--blue); border: 1px solid #6884ef; border-radius: 14px; padding: 30px; box-shadow: 0 28px 70px #0004; }
.case-hero-panel .eyebrow { color: #d2dfff; margin: 0; }
.case-hero-panel h2 { font-size: clamp(26px,2.5vw,34px); margin: 20px 0 28px; letter-spacing: -1px; }
.case-facts { margin: 0; border-top: 1px solid #ffffff40; }
.case-facts>div { display: grid; grid-template-columns: 95px 1fr; gap: 18px; padding: 13px 0; border-bottom: 1px solid #ffffff40; }
.case-facts dt { color: #c2d2ff; font-size: 12px; }
.case-facts dd { margin: 0; font-size: 14px; }
.case-hero-bottom { border-top: 1px solid var(--line); padding: 22px 0 26px; display: flex; justify-content: space-between; gap: 20px; align-items: center; color: var(--muted); font-size: 12px; letter-spacing: 1.3px; }
.case-hero-bottom a { color: #f7f9ff; letter-spacing: 0; font-size: 14px; }
.case-hero-bottom a:hover { color: var(--lime); }
.case-section { padding-top: 92px; padding-bottom: 92px; }
.case-two-col { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); gap: 90px; }
.case-section-heading .eyebrow { margin: 0 0 12px; }
.case-section-heading h2 { margin-top: 14px; }
.case-section-heading-wide { display: grid; grid-template-columns: minmax(0,1.2fr) minmax(260px,.55fr); column-gap: 70px; align-items: end; margin-bottom: 42px; }
.case-section-heading-wide .eyebrow { grid-column: 1 / -1; }
.case-section-heading-wide h2 { margin-bottom: 0; }
.case-section-heading-wide>p:not(.eyebrow) { color: var(--muted); margin: 0 0 8px; }
.light .case-section-heading-wide>p:not(.eyebrow) { color: #526076; }
.case-copy p:not(.large) { color: #526076; }
.case-dark-section .case-copy p:not(.large), .case-reflection .case-copy p:not(.large) { color: #b9c6d8; }
.case-source-note { padding: 18px 20px; border-left: 2px solid #254bdf; background: #e8edf6; margin-top: 28px; }
.case-source-note strong { color: #243d90; }
.case-problem-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px; margin-top: 56px; }
.case-card { background: #fff; border: 1px solid #cdd5e0; border-radius: 10px; padding: 25px; transition: transform .4s var(--ease),box-shadow .4s; }
.case-card:hover { transform: translateY(-5px); box-shadow: 0 16px 32px #15254b0a; }
.case-card h3 { font-size: 21px; margin: 18px 0 9px; letter-spacing: -.4px; }
.case-card p { color: #526076; margin: 0; font-size: 15px; }
.case-dark-section { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.case-timeline { max-width: 1030px; margin-left: auto; }
.case-timeline ol { list-style: none; margin: 0; padding: 0; position: relative; }
.case-timeline ol::before { content: ""; position: absolute; left: 29px; top: 30px; bottom: 30px; width: 1px; background: #3a465b; }
.case-timeline li { display: grid; grid-template-columns: 60px 1fr; gap: 28px; position: relative; padding: 22px 0; }
.case-step { width: 60px; height: 60px; display: grid; place-items: center; border: 1px solid #53617a; border-radius: 50%; background: var(--navy); color: var(--lime); font-size: 12px; z-index: 1; }
.case-timeline h3 { margin: 2px 0 7px; font-size: 22px; font-weight: 550; letter-spacing: -.4px; }
.case-timeline p { margin: 0; color: #b9c6d8; max-width: 820px; }
.case-visual-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 22px; }
.case-configuration-proof { margin-top: 54px; }
.case-configuration-heading { display: grid; grid-template-columns: minmax(170px,.55fr) minmax(0,1.45fr); gap: 26px; align-items: start; padding: 25px 0; margin-bottom: 22px; border-top: 1px solid #cdd5e0; border-bottom: 1px solid #cdd5e0; }
.case-configuration-heading .eyebrow { margin: 2px 0 0; }
.case-configuration-heading>p:last-child { margin: 0; max-width: 680px; color: #526076; font-size: 15px; line-height: 1.6; }
.case-visual { appearance: none; width: 100%; text-align: left; border: 1px solid #cdd5e0; background: #fff; border-radius: 12px; padding: 0; overflow: hidden; cursor: zoom-in; color: var(--ink); box-shadow: 0 10px 28px #15254b08; transition: transform .45s var(--ease),box-shadow .45s,border-color .3s; }
.case-visual:hover { transform: translateY(-6px); box-shadow: 0 22px 50px #15254b14; border-color: #a9b7ce; }
.case-visual:focus-visible { outline: 3px solid #254bdf; outline-offset: 5px; }
.mock-window { margin: 22px; border-radius: 10px; background: #e9eef5; border: 1px solid #c8d1df; overflow: hidden; min-height: 330px; transform: scale(.985); transition: transform .5s var(--ease); }
.case-visual:hover .mock-window { transform: scale(1); }
.case-visual-image { min-height: 0; background: #101926; }
.case-visual-image img { display: block; width: 100%; height: auto; }
.mock-window-bar { height: 44px; display: flex; align-items: center; gap: 7px; border-bottom: 1px solid #c8d1df; padding: 0 14px; background: #f8faff; }
.mock-window-bar span { width: 8px; height: 8px; border-radius: 50%; background: #a9b5c7; }
.mock-window-bar b { margin-left: auto; color: #647086; font-size: 10px; letter-spacing: 1.2px; }
.mock-compose { padding: 34px; background: #fff; min-height: 285px; }
.mock-lines { display: grid; gap: 9px; margin-bottom: 58px; }
.mock-lines i { display: block; height: 7px; border-radius: 10px; background: #dde4ee; width: 82%; }
.mock-lines i:nth-child(2) { width: 68%; }
.mock-lines i:nth-child(3) { width: 46%; }
.mock-signature { display: flex; gap: 15px; align-items: center; border-top: 1px solid #e1e6ee; padding-top: 20px; }
.mock-mark { width: 50px; height: 50px; display: grid; place-items: center; border-radius: 50%; background: var(--blue); color: white; font-weight: 700; }
.mock-signature strong, .mock-signature small { display: block; }
.mock-signature strong { color: #172237; font-size: 14px; }
.mock-signature small { color: #6d7889; font-size: 11px; margin-top: 2px; }
.mock-banner { margin-top: 18px; background: var(--lime); color: var(--navy); font-size: 10px; letter-spacing: 1.2px; font-weight: 700; padding: 9px 12px; border-radius: 5px; }
.mock-admin { background: #111b2c; border-color: #31405a; }
.mock-admin .mock-window-bar { background: #18253a; border-color: #31405a; }
.mock-admin .mock-window-bar b { color: #9fb0c8; }
.mock-rule-list { padding: 28px; display: grid; gap: 12px; }
.mock-rule { display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 12px; padding: 16px; border: 1px solid #30405a; background: #152238; border-radius: 8px; color: #e9eff8; }
.mock-rule b { color: var(--lime); font-size: 12px; }
.mock-rule span { font-size: 13px; }
.mock-rule em { font-style: normal; font-size: 9px; letter-spacing: 1px; color: #aebcd0; border: 1px solid #3e4d63; border-radius: 4px; padding: 3px 6px; }
.case-visual-caption { min-height: 92px; border-top: 1px solid #d7dee8; padding: 18px 22px; display: grid; grid-template-columns: 1fr auto; gap: 4px 20px; align-items: center; }
.case-visual-caption>span:first-child { color: #4257a2; font-size: 11px; letter-spacing: 1.2px; text-transform: uppercase; }
.case-visual-caption strong { grid-column: 1; font-size: 16px; }
.visual-open { grid-column: 2; grid-row: 1 / 3; color: #254bdf; font-size: 24px; transition: transform .3s var(--ease); }
.case-visual:hover .visual-open { transform: translate(3px,-3px); }
.case-outcomes { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.case-outcome-card { min-height: 230px; padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .3s; }
.case-outcome-card:hover { background: #121c2e; }
.case-outcome-card>span { color: var(--lime); font-size: 12px; }
.case-outcome-card h3 { font-size: 24px; margin: 42px 0 10px; font-weight: 550; }
.case-outcome-card p { color: #b9c6d8; margin: 0; }
.evidence-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 22px; }
.evidence-card { position: relative; min-height: 360px; border-radius: 12px; background: #fff; border: 1px solid #cdd5e0; padding: 28px; overflow: hidden; transition: transform .45s var(--ease),box-shadow .45s,border-color .3s; }
.evidence-card::after { content: ""; position: absolute; width: 210px; height: 210px; right: -70px; bottom: -90px; border-radius: 50%; background: #eef2f8; transition: transform .5s var(--ease); }
.evidence-card:hover { transform: translateY(-6px); box-shadow: 0 22px 50px #15254b14; border-color: #a9b7ce; }
.evidence-card:hover::after { transform: scale(1.12); }
.evidence-card-top { display: flex; justify-content: space-between; align-items: center; color: #4257a2; font-size: 11px; letter-spacing: 1.2px; }
.evidence-card-top>span:last-child { font-size: 24px; transition: transform .3s var(--ease); }
.evidence-card:hover .evidence-card-top>span:last-child { transform: translate(3px,-3px); }
.evidence-mark { margin: 42px 0 28px; width: 64px; height: 64px; display: grid; place-items: center; border-radius: 10px; font-size: 25px; font-weight: 750; letter-spacing: -1px; }
.linkedin-mark { background: #0a66c2; color: #fff; }
.codetwo-mark { background: var(--navy); color: var(--lime); }
.evidence-card h3 { position: relative; z-index: 1; font-size: 26px; line-height: 1.25; letter-spacing: -.6px; margin: 0 0 12px; }
.evidence-card p { position: relative; z-index: 1; color: #526076; max-width: 520px; margin: 0 0 26px; }
.evidence-action { position: relative; z-index: 1; color: #254bdf; font-weight: 650; font-size: 14px; }
.case-reflection { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); gap: 90px; }
.case-reflection .button { margin-top: 22px; }
.case-lightbox { position: fixed; inset: 0; z-index: 100; background: rgba(6,10,18,.92); padding: 58px; display: grid; place-items: center; }
.case-lightbox[hidden] { display: none; }
.case-lightbox-content { width: min(1040px,100%); max-height: calc(100vh - 116px); overflow: auto; background: var(--paper); border: 1px solid #5b6679; border-radius: 14px; box-shadow: 0 30px 100px #0008; }
.case-lightbox-content .mock-window { margin: 30px; min-height: 500px; transform: none; }
.case-lightbox-content .mock-window.case-visual-image { min-height: 0; background: #eef2f8; }
.case-lightbox-content .mock-compose { min-height: 455px; padding: 50px; }
.case-lightbox-content .mock-rule-list { padding: 48px; }
.case-lightbox-close { position: fixed; top: 22px; right: 28px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid #667083; background: #111a2a; color: white; font-size: 28px; cursor: pointer; }
.case-lightbox-close:hover { color: var(--lime); border-color: var(--lime); }
body.lightbox-open { overflow: hidden; }

@media(max-width:1050px) {
  .case-hero-grid { grid-template-columns: minmax(0,1.25fr) minmax(280px,.75fr); gap: 34px; }
  .case-two-col, .case-reflection { gap: 48px; }
  .case-problem-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .case-section-heading-wide { grid-template-columns: 1fr; gap: 10px; }
  .case-section-heading-wide>p:not(.eyebrow) { max-width: 720px; }
}
@media(max-width:760px) {
  .case-hero { padding-top: 28px; }
  .case-hero-grid { grid-template-columns: 1fr; gap: 34px; padding-bottom: 36px; }
  .case-hero-panel { padding: 25px; }
  .case-lead { font-size: 17px; }
  .case-hero-bottom { align-items: flex-start; flex-direction: column; gap: 8px; }
  .case-section { padding-top: 58px; padding-bottom: 58px; }
  .case-two-col, .case-reflection { grid-template-columns: 1fr; gap: 18px; }
  .case-problem-grid, .case-visual-grid, .case-outcomes, .evidence-grid { grid-template-columns: 1fr; }
  .case-configuration-heading { display: block; }
  .case-configuration-heading>p:last-child { margin-top: 12px; }
  .case-problem-grid { margin-top: 34px; }
  .case-timeline li { grid-template-columns: 48px 1fr; gap: 20px; }
  .case-step { width: 48px; height: 48px; }
  .case-timeline ol::before { left: 23px; }
  .mock-window { min-height: 280px; margin: 14px; }
  .case-visual-image { min-height: 0; }
  .mock-compose { min-height: 235px; padding: 24px; }
  .mock-lines { margin-bottom: 42px; }
  .mock-rule-list { padding: 20px; }
  .mock-rule { grid-template-columns: 30px 1fr; }
  .mock-rule em { grid-column: 2; justify-self: start; }
  .case-lightbox { padding: 64px 16px 20px; }
  .case-lightbox-content .mock-window { margin: 12px; min-height: 420px; }
  .case-lightbox-content .mock-window.case-visual-image { min-height: 0; }
  .case-lightbox-content .mock-compose { min-height: 375px; padding: 28px; }
  .case-lightbox-content .mock-rule-list { padding: 24px; }
}
@media(prefers-reduced-motion:reduce) {
  .case-visual:hover,.evidence-card:hover,.case-card:hover { transform: none; }
  .case-visual:hover .mock-window,.evidence-card:hover::after { transform: none; }
}
@media print {
  .case-hero-grid,.case-two-col,.case-reflection,.case-section-heading-wide,.case-problem-grid,.case-visual-grid,.case-outcomes,.evidence-grid { display: block; }
  .case-section { padding-top: 28px; padding-bottom: 28px; }
  .case-hero-panel,.case-card,.case-visual,.case-outcome-card,.evidence-card { margin-bottom: 20px; break-inside: avoid; }
  .case-lightbox { display: none!important; }
}