/* Helicon turbine case · scoped to .turbine, consistent with site V3 black/green baseline. */
.turbine{--t-line:#30452c;--t-panel:#0b120b;--t-muted:#a8b9a6;--t-accent:#beddaa;background:#000;color:#f6f7f4}
.turbine main{overflow:hidden}.turbine a:focus-visible,.turbine button:focus-visible{outline:3px solid #d6f5bd;outline-offset:3px}
.turbine .eyebrow{font-size:12px;letter-spacing:.16em;font-weight:790;color:#a9d19a;text-transform:uppercase;margin:0 0 16px}.turbine h1,.turbine h2,.turbine h3{color:#f5f7f1}.turbine h2{font-size:clamp(30px,3.45vw,49px);line-height:1.13;letter-spacing:-.037em;font-weight:720;margin:0 0 22px}.turbine h3{letter-spacing:-.022em}.turbine p{line-height:1.69}.turbine .container{max-width:1180px}
.turbine-crumb{display:flex;align-items:center;gap:12px;padding-top:24px;padding-bottom:20px;color:#b4c1b0;font-size:13px;flex-wrap:wrap}.turbine-crumb a{text-decoration:underline;text-underline-offset:4px}.turbine-client-chip{font-weight:800;font-size:11px;letter-spacing:.10em;margin-left:auto;color:#cee5bf;border:1px solid #4b6842;border-radius:80px;padding:7px 13px;background:#0e1a0b}
.turbine-hero{padding:24px 0 32px}.turbine-hero-grid{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);align-items:center;gap:44px}.turbine-hero-copy{padding:20px 0}.turbine h1{font-size:clamp(42px,4.45vw,70px);line-height:1.045;letter-spacing:-.052em;margin:0 0 27px;font-weight:770}.turbine h1 span{color:#a9d28f}.turbine-intro{color:#d9e0d5;font-size:clamp(17px,1.6vw,19px);line-height:1.69;max-width:590px;margin:0}.turbine-intro strong{color:#f7fbf3}.turbine-hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.turbine-hero-actions .btn,.turbine-cta .btn{padding:13px 20px}.turbine-summary-fine{color:#9cac98;font-size:13px;margin-top:20px;max-width:600px}.turbine-hero-figure{margin:0;position:relative;min-width:0;background:#101612;border:1px solid #334431;border-radius:12px;overflow:hidden}.turbine-hero-figure img{display:block;width:100%;height:clamp(340px,34vw,500px);object-fit:cover;object-position:50% 40%}.turbine-hero-figure figcaption{background:#071007e8;color:#e4ece0;font:700 11px/1.5 system-ui, sans-serif;letter-spacing:.07em;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:14px 17px}
.turbine-statband{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid #355035;border-bottom:1px solid #355035;margin-top:22px;margin-bottom:22px}.turbine-statband>div{padding:26px 22px;display:grid;align-content:start;border-right:1px solid #30432e;gap:1px}.turbine-statband>div:last-child{border:0}.turbine-statband small{font-size:11px;font-weight:800;letter-spacing:.13em;color:#a8c99a}.turbine-statband strong{font-size:clamp(29px,3vw,43px);line-height:1.3;letter-spacing:-.055em;color:#fff}.turbine-statband span{font-size:14px;color:#b7c9b4}
.turbine-section{padding:88px 0}.turbine-intro-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.92fr);gap:65px;align-items:start}.turbine-reading{color:#c8d3c3;font-size:17px}.turbine-reading p:first-child{margin-top:0}.turbine-reading p{margin-bottom:18px}.turbine-inline-link{color:#c0e3ad!important;font-weight:750;text-decoration:underline;text-underline-offset:5px}
.turbine-concerns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:43px}.turbine-concerns article{padding:27px 26px 29px;background:linear-gradient(180deg,#101a0e,#080d09);border:1px solid #334931;border-radius:11px}.turbine-concerns article>span{font-size:12px;letter-spacing:.12em;color:#a7cf95;font-weight:800}.turbine-concerns h3{font-size:23px;margin:15px 0 10px}.turbine-concerns p{margin:0;color:#c4d0c0;font-size:16px}
.turbine-evidence{background:#071007;border-top:1px solid #223a21;border-bottom:1px solid #223a21}.turbine-evidence-header{display:flex;gap:30px;justify-content:space-between;align-items:end}.turbine-evidence-header>div:first-child{max-width:700px}.turbine-evidence-header p:not(.eyebrow){max-width:700px;color:#c2cfc0;margin:0 0 27px}.turbine-gallery-controls{display:flex;align-items:center;gap:14px;flex-shrink:0;padding-bottom:28px}.turbine-gallery-controls button,.turbine-lightbox-actions button{border:1px solid #476344;border-radius:8px;background:#111e10;color:#eef8e8;min-width:43px;min-height:43px;font-size:20px}.turbine-gallery-controls button:hover,.turbine-lightbox-actions button:hover{background:#20351b}.turbine-gallery-controls span{font-size:14px;font-weight:800;letter-spacing:.12em;color:#bacfb4}
.turbine-gallery{border:1px solid #3a5237;border-radius:12px;overflow:hidden;display:grid;grid-template-columns:230px minmax(0,1fr);background:#050805}.turbine-gallery-switch{padding:10px;background:#0d160c;border-right:1px solid #334a30;display:flex;flex-direction:column;gap:5px}.turbine-gallery-option{border:1px solid transparent;border-radius:7px;background:transparent;color:#aebfad;text-align:left;padding:17px 14px;display:grid;grid-template-columns:28px minmax(0,1fr);gap:3px 8px;width:100%;transition:background .16s ease}.turbine-gallery-option>span{grid-row:span 2;color:#81a473;font:800 13px/1.55 system-ui}.turbine-gallery-option strong{font-size:14px;line-height:1.35;color:#e5eee2}.turbine-gallery-option small{font-size:10px;letter-spacing:.10em;color:#a5b4a0}.turbine-gallery-option.is-active{border-color:#638958;background:#1c3218}.turbine-gallery-option:hover{background:#172615}.turbine-gallery-main{min-width:0}.turbine-gallery-imageframe{position:relative;min-height:420px;background:#4d5368;display:grid;place-items:center;overflow:hidden}.turbine-gallery-imageframe img{display:block;width:100%;height:auto;max-height:555px;object-fit:contain}.turbine-gallery-overline{position:absolute;top:15px;left:17px;border-radius:5px;background:#020702c9;color:white;font-size:11px;font-weight:850;letter-spacing:.1em;padding:8px 11px}.turbine-expand{position:absolute;right:14px;bottom:14px;background:#020702ec;border:1px solid #94b985;border-radius:7px;color:#fff;padding:10px 14px;font-size:14px;font-weight:740}.turbine-expand:hover{background:#173512}.turbine-gallery-caption{padding:27px 29px;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(170px,.75fr);gap:28px;border-top:1px solid #354a32}.turbine-gallery-caption .eyebrow{font-size:10px;margin-bottom:6px}.turbine-gallery-caption h3{font-size:22px;margin:0 0 6px}.turbine-gallery-caption p{font-size:15px;color:#d3decf;margin:0}.turbine-gallery-caption .turbine-viewer-note{border-left:2px solid #799f6b;color:#9fb39b;padding-left:18px;font-size:13px;line-height:1.65;align-self:start}.turbine-keyboard-help{color:#a7baa2;margin:15px 0 0;font-size:13px}
.turbine-method-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:46px}.turbine-method-grid article{border-top:2px solid #68915e;background:#0c130b;padding:24px 24px 25px;display:flex;flex-direction:column}.turbine-method-no{font-weight:850;color:#a8cf96;font-size:11px;letter-spacing:.12em}.turbine-method-grid h3{font-size:22px;line-height:1.25;margin:16px 0 10px}.turbine-method-grid p{margin:0 0 16px;color:#c6d0c2;font-size:15px}.turbine-method-grid .turbine-method-evidence{margin-top:auto;padding-top:18px;border-top:1px solid #33462f;font-size:12px;color:#b6d0aa;line-height:1.5;font-weight:750}.turbine-method-grid code{font-size:.95em;color:#f1e5d6}
.turbine-mesh-section{background:#080d08}.turbine-mesh-top{max-width:770px}.turbine-mesh-top p:not(.eyebrow){color:#bcc9b9}.turbine-mesh-pair{margin-top:33px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.turbine-mesh-pair figure{margin:0;border:1px solid #41513d;border-radius:10px;overflow:hidden;background:#0c140b}.turbine-mesh-pair figure button{display:block;border:0;background:#575d76;width:100%;padding:0;cursor:zoom-in}.turbine-mesh-pair figure button img{display:block;width:100%;height:280px;object-fit:contain}.turbine-mesh-pair figcaption{padding:16px 18px;display:flex;flex-wrap:wrap;align-items:center;gap:8px 15px;justify-content:space-between}.turbine-mesh-pair b{font-size:15px}.turbine-mesh-pair span{font-size:12px;color:#a2b89c}
.turbine-interpretation{border-top:1px solid #2e422b}.turbine-final-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.85fr);gap:76px}.turbine-final-grid>div>p:not(.eyebrow){font-size:17px;color:#c8d4c3;max-width:690px}.turbine-client-credit{border-left:3px solid #739964;margin-top:35px;padding-left:18px;display:grid;gap:4px}.turbine-client-credit span{color:#b1c9a9;font-size:11px;letter-spacing:.12em;font-weight:800}.turbine-client-credit strong{font-size:22px}.turbine-client-credit small{font-size:13px;color:#a9b8a4}.turbine-limit{background:#111b0f;border:1px solid #3a5332;padding:29px;border-radius:10px}.turbine-limit h3{font-size:22px;margin:0 0 13px}.turbine-limit p{color:#c2cfc0;font-size:15px}.turbine-limit p+ p{margin-top:16px}.turbine-limit a{display:inline-block;margin-top:12px}
.turbine-cta{border-top:1px solid #30482b;background:#0c160b;padding:65px 0}.turbine-cta-inner{display:flex;justify-content:space-between;gap:34px;align-items:center}.turbine-cta-inner>div{max-width:760px}.turbine-cta-inner h2{font-size:clamp(28px,3vw,40px);margin-bottom:13px}.turbine-cta-inner p:not(.eyebrow){margin:0;color:#bfcab9}.turbine-cta .btn{flex-shrink:0}
#turbine-lightbox{position:fixed;inset:24px;width:calc(100% - 48px);max-width:1480px;max-height:calc(100% - 48px);padding:0;border:1px solid #6e9462;border-radius:11px;background:#070b07;color:#f4f9f0;overflow:hidden}#turbine-lightbox::backdrop{background:#000e;backdrop-filter:blur(5px)}.turbine-lightbox-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 18px;border-bottom:1px solid #30462b}.turbine-lightbox-head strong{margin-right:auto;font-size:15px}.turbine-lightbox-head>span{color:#afc4a8;font-size:13px;min-width:45px}.turbine-lightbox-actions{display:flex;gap:6px;flex-wrap:wrap}.turbine-lightbox-actions button{font-size:14px;min-height:38px;min-width:38px;padding:6px 11px}.turbine-lightbox-canvas{height:min(75vh,780px);min-height:210px;display:flex;align-items:center;justify-content:center;overflow:hidden;touch-action:none;cursor:zoom-in;background:#41495b}.turbine-lightbox-canvas.is-zoomed{cursor:grab}.turbine-lightbox-canvas.is-dragging{cursor:grabbing}.turbine-lightbox-canvas img{max-height:100%;max-width:100%;object-fit:contain;transform-origin:center center;user-select:none;pointer-events:none}.turbine-lightbox-foot{font-size:12px;color:#a4b7a2;text-align:center;margin:9px 0 11px}
@media(max-width:950px){.turbine-hero-grid{grid-template-columns:1fr;gap:24px}.turbine-hero-figure img{height:min(64vw,490px)}.turbine-intro-grid,.turbine-final-grid{gap:32px}.turbine-gallery{grid-template-columns:185px minmax(0,1fr)}.turbine-gallery-option{padding:15px 10px}.turbine-statband>div{padding:20px 14px}.turbine-method-grid{gap:10px}.turbine-method-grid article{padding:22px 17px}}
@media(max-width:720px){.turbine .container{width:calc(100% - 34px)}.turbine-crumb{padding-top:15px}.turbine-client-chip{margin-left:0}.turbine-hero{padding-top:8px}.turbine-hero-copy{padding:0}.turbine h1{font-size:clamp(38px,9vw,58px)}.turbine-hero-figure img{height:260px}.turbine-hero-figure figcaption{font-size:9px}.turbine-statband{grid-template-columns:repeat(2,minmax(0,1fr))}.turbine-statband>div:nth-child(2){border-right:0}.turbine-statband>div:nth-child(-n+2){border-bottom:1px solid #30432e}.turbine-section{padding:60px 0}.turbine-intro-grid,.turbine-concerns,.turbine-method-grid,.turbine-final-grid{grid-template-columns:1fr}.turbine-concerns,.turbine-method-grid{gap:12px}.turbine-evidence-header{display:block}.turbine-gallery-controls{padding:2px 0 20px}.turbine-gallery{display:block}.turbine-gallery-switch{flex-direction:row;overflow-x:auto;scrollbar-width:thin;gap:6px;border-bottom:1px solid #354a32;border-right:0}.turbine-gallery-option{min-width:162px;flex:0 0 162px}.turbine-gallery-imageframe{min-height:260px}.turbine-gallery-imageframe img{max-height:375px}.turbine-gallery-caption{grid-template-columns:1fr;gap:13px;padding:21px 17px}.turbine-mesh-pair{grid-template-columns:1fr}.turbine-mesh-pair figure button img{height:250px}.turbine-cta-inner{display:block}.turbine-cta-inner .btn{margin-top:24px;display:inline-block}.turbine-lightbox-head{padding:9px}.turbine-lightbox-canvas{height:min(70vh,550px)}#turbine-lightbox{inset:8px;width:calc(100% - 16px);max-height:calc(100% - 16px)}.turbine-lightbox-foot{font-size:10px}}
@media(prefers-reduced-motion:reduce){.turbine-gallery-option{transition:none}}

/* Performance-led case study additions (approved 18% CFD result). */
.turbine-intro-follow{margin-top:17px;color:#d5e2d0}
.turbine-highlight strong{color:#d6f5bd}
.turbine-statband strong{overflow-wrap:anywhere}
.turbine-statband>div:last-child strong{font-size:clamp(22px,2.15vw,33px);letter-spacing:-.04em}
.turbine-design-section{background:linear-gradient(150deg,#0c180b 0%,#050905 75%);border-top:1px solid #294126;border-bottom:1px solid #294126}
.turbine-gain-panel{margin-top:40px;display:grid;grid-template-columns:minmax(260px,.73fr) minmax(0,1.27fr);border:1px solid #638c55;border-radius:13px;overflow:hidden;background:#070c07}
.turbine-gain-number{padding:37px 35px;background:linear-gradient(155deg,#173011,#0b160a);display:flex;flex-direction:column;justify-content:center;gap:3px;border-right:1px solid #3d6034}
.turbine-gain-number span{font-size:11px;font-weight:800;letter-spacing:.13em;color:#b8dca7}
.turbine-gain-number strong{font-size:clamp(64px,8vw,108px);line-height:1.12;letter-spacing:-.07em;color:#d2f5b8;font-weight:790;margin:16px 0 7px}
.turbine-gain-number strong small{font-size:.46em;letter-spacing:0;margin-left:4px}
.turbine-gain-story{padding:36px 44px 32px;display:flex;flex-direction:column;justify-content:center}
.turbine-gain-story h3{font-size:clamp(23px,2.3vw,30px);margin:0 0 12px}
.turbine-gain-story p{font-size:16px;color:#d3dfcf;margin:0 0 13px}
.turbine-gain-story p strong{color:#f2ffeb}
.turbine-gain-story small{display:block;border-top:1px solid #344d2e;padding-top:12px;margin-top:6px;color:#aabda5;line-height:1.6}
.turbine-outcome-list{list-style:none;padding:0;margin:24px 0 14px;display:grid;gap:12px}
.turbine-outcome-list li{color:#d4dfcf;font-size:15px;line-height:1.52;padding-left:23px;position:relative}
.turbine-outcome-list li::before{content:'✓';position:absolute;left:0;color:#aedc97;font-weight:800}
@media(max-width:720px){.turbine-gain-panel{grid-template-columns:1fr}.turbine-gain-number{border-right:0;border-bottom:1px solid #3d6034;padding:25px 25px}.turbine-gain-number strong{font-size:70px;margin:7px 0}.turbine-gain-story{padding:25px 25px}}