/* Case study additions. Shared homepage styles stay in styles.css. */
.case-label { display: inline-block; color: #80dcf1; font-size: .74rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; }
.case-tags li { border: 1px solid var(--glass-brd); border-radius: 999px; padding: 5px 11px; color: #b8c4e0; font-size: .75rem; }
.featured-case { display: grid; grid-template-columns: 1.25fr 1fr; overflow: hidden; }
.featured-case-copy { padding: clamp(28px, 4vw, 48px); }
.featured-case h3 { font-size: clamp(1.65rem, 3.2vw, 2.35rem); line-height: 1.25; letter-spacing: -.04em; margin: 18px 0; }
.featured-case p { color: #b8c4e0; max-width: 530px; }
.featured-case .case-tags { margin: 24px 0 30px; }
.case-read-link { display: inline-flex; align-items: center; gap: 18px; color: var(--ink); font-weight: 600; border-bottom: 1px solid #7c5cff; padding-bottom: 7px; }
.case-read-link span { color: var(--cyan); transition: transform .2s ease; }
.case-read-link:hover span { transform: translate(3px, -3px); }
.featured-case-visual { position: relative; min-height: 370px; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 30px 18px; overflow: hidden; background: radial-gradient(ellipse at 55% 45%, rgba(93,71,181,.25), transparent 65%), rgba(6,11,29,.45); border-left: 1px solid var(--glass-brd); }
.case-visual-label, .case-visual-foot { color: #a7b6d5; font-size: .7rem; text-align: center; }
.case-visual-label { letter-spacing: .1em; text-transform: uppercase; }
.case-visual-foot { margin-top: 8px; }
.world-orbit { position: relative; width: 310px; max-width: 100%; height: 260px; display: grid; place-items: center; }
.orbit-ring { position: absolute; width: 240px; height: 184px; border: 1px solid rgba(136,116,223,.28); border-radius: 50%; transform: rotate(-28deg); }
.orbit-ring-two { width: 280px; height: 138px; transform: rotate(35deg); border-color: rgba(92,205,235,.18); }
.world-core { display: grid; place-items: center; gap: 8px; width: 136px; height: 136px; border-radius: 50%; border: 1px solid rgba(117,101,223,.5); background: radial-gradient(circle at 30% 20%, #28345b, #11172d 75%); color: #a5c9ff; box-shadow: 0 0 70px rgba(96,72,200,.18); }
.world-core span { font-size: .68rem; color: #c5d4f1; margin-top: -8px; }
.world-node { position: absolute; padding: 8px 12px; background: #141d35; border: 1px solid rgba(137,154,206,.35); border-radius: 9px; font-size: .67rem; color: #d9e4fa; box-shadow: 0 8px 25px #060a17; }
.node-assets { top: 35px; left: 15px; }
.node-data { top: 68px; right: 0; }
.node-ops { bottom: 21px; left: 57px; }
.case-page { --case-copy: #b8c4e0; }
.case-atmosphere { position: absolute; top: 0; left: 0; right: 0; height: 900px; pointer-events: none; z-index: -1; background: radial-gradient(ellipse at 83% 15%, rgba(100,71,196,.18), transparent 48%), radial-gradient(ellipse at 25% 8%, rgba(31,149,181,.1), transparent 50%); }
.case-page .nav { background: rgba(7,10,22,.88); backdrop-filter: blur(14px); }
.case-page .nav-links a[aria-current="page"] { color: var(--cyan); }
.skip-link { position: fixed; top: 8px; left: 12px; z-index: 100; padding: 12px 18px; background: var(--ink); color: var(--bg); border-radius: 6px; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
:where(.case-page, .case-studies, .nav) a:focus-visible, .nav-toggle:focus-visible { outline: 2px solid var(--cyan); outline-offset: 6px; border-radius: 3px; }
.case-hero { max-width: var(--maxw); margin: 0 auto; padding: 130px clamp(20px,5vw,32px) 55px; }
.case-breadcrumb { display: flex; gap: 10px; align-items: center; margin-bottom: 40px; color: #a4b1ce; font-size: .8rem; }
.case-breadcrumb a:hover { color: var(--cyan); }
.case-breadcrumb span[aria-hidden] { color: #596783; }
.case-hero h1 { max-width: 1000px; font-size: clamp(2.25rem, 5.2vw, 4.1rem); line-height: 1.12; letter-spacing: -.045em; margin: 20px 0 24px; font-weight: 800; }
.case-subtitle { max-width: 790px; font-size: clamp(1.05rem,1.7vw,1.25rem); line-height: 1.75; color: var(--case-copy); }
.case-confidential { margin-top: 23px; color: #94a2c0; font-size: .78rem; }
.case-facts { display: flex; flex-wrap: wrap; gap: 18px 46px; border-top: 1px solid var(--glass-brd); padding-top: 25px; margin-top: 35px; }
.case-facts div { display: grid; gap: 5px; }
.case-facts dt { font-size: .65rem; letter-spacing: .12em; text-transform: uppercase; color: #8f9fbe; }
.case-facts dd { font-size: .87rem; color: #d5def3; }
.case-layout { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(20px,5vw,32px) 60px; display: grid; grid-template-columns: 205px minmax(0,1fr); gap: 70px; align-items: start; }
.case-toc { position: sticky; top: 110px; padding: 25px 0; }
.case-toc > p { color: #8f9fbe; text-transform: uppercase; letter-spacing: .13em; font-size: .65rem; margin-bottom: 19px; }
.case-toc ol { list-style: none; border-left: 1px solid #28324b; }
.case-toc a { display: block; padding: 9px 0 9px 17px; color: #9daecc; font-size: .79rem; border-left: 2px solid transparent; margin-left: -1px; }
.case-toc a:hover, .case-toc a[aria-current="location"] { color: #b8f0ff; border-color: #53c9e8; }
.case-article { min-width: 0; max-width: 790px; color: var(--case-copy); font-size: .98rem; line-height: 1.85; }
.case-article > .case-summary { margin-bottom: 47px; padding: 27px 30px; border-left: 2px solid #8f78f2; background: linear-gradient(110deg, rgba(107,85,182,.12), rgba(107,85,182,.025)); border-radius: 0 13px 13px 0; color: #d3ddf2; font-size: 1.02rem; }
.case-section { scroll-margin-top: 110px; padding: 0 0 42px; margin-bottom: 41px; border-bottom: 1px solid rgba(154,172,209,.13); }
.case-section h2 { color: var(--ink); font-size: clamp(1.45rem,2.8vw,1.85rem); letter-spacing: -.025em; line-height: 1.3; margin-bottom: 24px; }
.case-section h2 span { color: #7c88ab; font-family: Inter, sans-serif; font-size: .7rem; font-weight: 500; letter-spacing: .08em; margin-right: 12px; vertical-align: middle; }
.case-section p + p { margin-top: 19px; }
.case-section h3 { color: #dce6fa; font-size: .97rem; line-height: 1.45; margin-bottom: 7px; }
.challenge-list { counter-reset: challenge; list-style: none; }
.challenge-list li { counter-increment: challenge; position: relative; padding: 0 0 23px 45px; margin-bottom: 22px; border-bottom: 1px solid rgba(154,172,209,.1); }
.challenge-list li:last-child { border-bottom: 0; margin-bottom: 0; padding-bottom: 0; }
.challenge-list li::before { content: "0" counter(challenge); position: absolute; top: 0; left: 0; color: #8f88c7; font-size: .7rem; font-weight: 600; letter-spacing: .04em; }
.challenge-list p { font-size: .9rem; line-height: 1.8; }
.architecture-figure { margin: 30px 0; padding: 25px 20px 19px; border: 1px solid #303c58; border-radius: 15px; background: linear-gradient(140deg, #10192d, #0c1020); }
.architecture-figure .diagram-label { display: block; text-align: center; color: #adbbd6; text-transform: uppercase; letter-spacing: .12em; font-size: .6rem; margin-bottom: 20px; }
.architecture-lanes { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 11px; }
.architecture-lane { text-align: center; padding: 18px 8px; border: 1px solid #33425d; border-radius: 9px; background: rgba(127,153,203,.045); }
.architecture-lane b { color: #e0eafa; font-size: .75rem; font-weight: 600; display: block; line-height: 1.4; min-height: 34px; }
.architecture-lane span { display: block; color: #9fb0d3; font-size: .66rem; line-height: 1.6; }
.architecture-lane .lane-arrow { color: #71acc8; font-size: 1.1rem; line-height: 1.5; }
.architecture-data { grid-column: 2 / 4; border: 1px solid #514775; border-radius: 8px; text-align: center; padding: 10px 8px; background: rgba(115,81,172,.07); color: #c1b4e8; font-size: .66rem; }
.architecture-data span { display: block; color: #9b91b6; font-size: .56rem; text-transform: uppercase; letter-spacing: .09em; }
.architecture-observability { color: #9cb1d4; border-top: 1px dashed #37415c; margin-top: 18px; padding-top: 13px; text-align: center; font-size: .65rem; }
.architecture-figure figcaption { font-size: .65rem; color: #8595b6; line-height: 1.6; margin-top: 15px; }
.case-article .reference-link, .case-article .source-link { color: #9acbe8; text-decoration: underline; text-decoration-color: #466683; text-underline-offset: 4px; }
.case-article .reference-link:hover, .case-article .source-link:hover { color: var(--cyan); }
.delivery-list { margin: 23px 0 0; list-style: none; }
.delivery-list li { position: relative; padding: 12px 0 12px 25px; border-top: 1px solid rgba(154,172,209,.12); font-size: .9rem; }
.delivery-list li::before { content: "✓"; position: absolute; left: 0; color: #79ceda; }
.value-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; }
.value-item { padding: 23px; border: 1px solid rgba(127,153,203,.18); border-radius: 13px; background: rgba(127,153,203,.035); }
.value-item p { font-size: .85rem; line-height: 1.8; }
.case-discuss { padding: 30px; border-radius: 15px; border: 1px solid rgba(136,112,222,.37); background: linear-gradient(120deg, rgba(106,73,175,.17), rgba(49,128,155,.07)); margin-bottom: 55px; scroll-margin-top: 110px; }
.case-discuss h2 { color: var(--ink); font-size: clamp(1.2rem,2.6vw,1.55rem); line-height: 1.4; margin-bottom: 14px; }
.case-discuss p { font-size: .9rem; margin-bottom: 24px; }
.case-discuss .btn { font-size: .85rem; padding: 13px 20px; }
.case-research { margin-bottom: 0; padding-bottom: 0; border-bottom: 0; }
.case-research h2 { font-size: 1.25rem; }
.case-research > p { font-size: .8rem; color: #8f9fbe; }
.research-item { padding: 22px 0; border-bottom: 1px solid rgba(154,172,209,.12); }
.research-item:last-child { border-bottom: 0; }
.research-item h3 { font-size: .87rem; }
.research-item p { font-size: .79rem; line-height: 1.8; }
.research-item .source-link { font-size: .72rem; display: inline-block; margin-top: 8px; }
.case-page .footer { margin-top: 10px; }
.case-page .footer-meta a { color: #b9c8e4; }
@media (max-width: 1024px) {
  .nav-links { position: fixed; inset: 0 0 auto; flex-direction: column; gap: 22px; padding: 100px 30px 40px; background: rgba(7,10,22,.98); backdrop-filter: blur(20px); transform: translateY(-100%); transition: transform .4s ease; height: 100svh; justify-content: flex-start; align-items: flex-start; }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { font-size: 1.4rem; }
  .nav-toggle { display: flex; z-index: 60; }
  .case-layout { grid-template-columns: 170px minmax(0,1fr); gap: 32px; }
}
@media (max-width: 760px) {
  .featured-case { grid-template-columns: 1fr; }
  .featured-case-visual { min-height: 325px; border-left: 0; border-top: 1px solid var(--glass-brd); }
  .case-hero { padding-top: 108px; padding-bottom: 30px; }
  .case-breadcrumb { margin-bottom: 28px; }
  .case-hero h1 { font-size: clamp(2.15rem,7vw,3.5rem); }
  .case-layout { grid-template-columns: 1fr; gap: 28px; }
  .case-toc { position: static; padding: 0 0 22px; border-bottom: 1px solid var(--glass-brd); }
  .case-toc > p { margin-bottom: 11px; }
  .case-toc ol { display: flex; flex-wrap: wrap; gap: 6px; border: 0; }
  .case-toc a { padding: 6px 10px; margin: 0; border: 1px solid #2b3853; border-radius: 6px; font-size: .7rem; }
  .case-article > .case-summary { padding: 22px; margin-bottom: 38px; }
  .case-section { padding-bottom: 33px; margin-bottom: 33px; }
  .case-facts { gap: 20px 26px; }
}
@media (max-width: 480px) {
  .case-hero h1 { font-size: 2.15rem; }
  .case-label { font-size: .62rem; letter-spacing: .07em; }
  .case-subtitle { font-size: .98rem; }
  .case-facts { display: grid; grid-template-columns: 1fr 1fr; }
  .case-facts dd { font-size: .79rem; }
  .value-grid { grid-template-columns: 1fr; }
  .architecture-figure { padding: 19px 12px 14px; }
  .architecture-lanes { gap: 7px; }
  .architecture-lane { padding: 14px 4px; }
  .architecture-lane b { font-size: .64rem; min-height: 31px; }
  .architecture-lane span, .architecture-data { font-size: .59rem; }
  .case-discuss { padding: 24px 20px; }
  .case-discuss .btn { font-size: .78rem; padding: 13px 15px; }
  .case-page .footer-meta { align-items: flex-start; }
}