/* GLOBAL HEADER V3 — NAV v12 (approved copy) */
.topbar{background:#0f1d2b;color:#c6d5e2;font-family:"IBM Plex Sans Arabic",system-ui,"Segoe UI",sans-serif;font-size:.83rem}
.topbar .wrap{max-width:1540px;margin-inline:auto;padding-inline:20px;display:flex;justify-content:space-between;align-items:center;gap:14px;min-height:38px;flex-wrap:wrap}
.topbar a{color:#fff}.topbar-links{display:flex;gap:16px;align-items:center}.topbar .link-icon{display:inline-flex;align-items:center;gap:8px}.topbar .link-icon svg{width:17px;height:17px;flex:none;stroke:currentColor;fill:none;stroke-width:1.9}
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid #dde5ec;font-family:"IBM Plex Sans Arabic",system-ui,"Segoe UI",sans-serif}
.site-header .wrap{max-width:1540px;margin-inline:auto;padding-inline:20px}.site-header .header-inner{display:flex;align-items:center;gap:14px;min-height:74px}
.site-header .brand{display:flex;align-items:center;gap:11px;flex:none;text-decoration:none}.site-header .brand:hover{text-decoration:none}.site-header .brand img{width:46px;height:46px;object-fit:contain}
.site-header .brand-ar{font-family:"Readex Pro","IBM Plex Sans Arabic",system-ui,sans-serif;font-weight:600;font-size:.98rem;color:#0f1d2b;display:block;line-height:1.3}.site-header .brand-en{font-size:.66rem;color:#51677c;letter-spacing:.06em;display:block}
.site-header .nav{margin-inline-start:auto;display:flex;align-items:center;gap:2px}.site-header .nav-item{position:relative}.site-header .nav-link{display:flex;align-items:center;gap:6px;padding:11px 11px;border-radius:8px;font-family:"Readex Pro","IBM Plex Sans Arabic",system-ui,sans-serif;font-size:.94rem;font-weight:500;color:#0f1d2b;background:none;border:0;cursor:pointer;white-space:nowrap;text-decoration:none}.site-header .nav-link:hover{background:#f2f6f9;text-decoration:none;color:#6f8f14}.site-header .nav-link.page-active{background:#f4f9e6;color:#6f8f14}.site-header .nav-link .chev{width:12px;height:12px;stroke:currentColor;fill:none;stroke-width:2.2;transition:transform .2s}.site-header .nav-item[data-open="true"] .chev{transform:rotate(180deg)}
.site-header .dropdown{position:absolute;inset-inline-start:0;top:calc(100% + 8px);background:#fff;border:1px solid #dde5ec;border-radius:14px;box-shadow:0 1px 2px rgba(15,29,43,.05),0 8px 24px -12px rgba(15,29,43,.18);padding:10px;min-width:330px;display:none;z-index:70}.site-header .nav-item[data-open="true"] .dropdown{display:block}.site-header .dropdown-grid{display:grid;gap:2px}.site-header .dd-link{display:flex;gap:11px;align-items:flex-start;padding:10px 11px;border-radius:8px;text-decoration:none}.site-header .dd-link:hover{background:#f4f9e6;text-decoration:none}.site-header .dd-link svg{width:21px;height:21px;flex:none;margin-top:3px;stroke:#a8c83e;fill:none;stroke-width:1.6}.site-header .dd-title{font-family:"Readex Pro","IBM Plex Sans Arabic",system-ui,sans-serif;font-weight:500;font-size:.92rem;color:#0f1d2b;display:block;line-height:1.4}.site-header .dd-desc{font-size:.79rem;color:#51677c;display:block;line-height:1.5}.site-header .dd-all{margin-top:6px;border-top:1px solid #dde5ec;padding-top:9px;display:block;text-align:center;font-family:"Readex Pro","IBM Plex Sans Arabic",system-ui,sans-serif;font-size:.87rem;font-weight:600;color:#6f8f14;padding-bottom:4px;text-decoration:none}.site-header .dropdown--wide{min-width:650px}.site-header .dropdown--wide .dropdown-grid{grid-template-columns:1fr 1fr}
.site-header .header-cta{display:flex;gap:9px;flex:none;margin-inline-start:0;align-items:center}.site-header .header-cta .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:"Readex Pro","IBM Plex Sans Arabic",system-ui,sans-serif;font-size:.88rem;font-weight:600;padding:10px 14px;border-radius:8px;border:1.5px solid transparent;cursor:pointer;transition:background .18s,border-color .18s,color .18s;text-decoration:none;line-height:1.2;min-height:0;white-space:nowrap;transform:none}.site-header .header-cta .btn:hover{transform:none;text-decoration:none}.site-header .header-cta .btn svg{width:18px;height:18px;flex:none;stroke:currentColor;fill:none;stroke-width:1.9}.site-header .header-cta .btn-ghost{background:transparent;color:#0f1d2b;border-color:#c3d2de}.site-header .header-cta .btn-ghost:hover{border-color:#a8c83e;color:#6f8f14;background:rgba(168,200,62,.06)}.site-header .header-cta .btn-wa{background:#1faa53;color:#fff}.site-header .header-cta .btn-wa:hover{background:#188443}
.site-header .burger{display:none;background:none;border:1.5px solid #c3d2de;border-radius:8px;padding:9px 11px;cursor:pointer;margin-inline-start:auto}.site-header .burger svg{width:22px;height:22px;stroke:#0f1d2b;fill:none;stroke-width:2}
@media(max-width:1480px){.site-header .dropdown--wide{min-width:0}.site-header .dropdown--wide .dropdown-grid{grid-template-columns:1fr}.site-header .burger{display:block}.site-header .nav{display:none;position:absolute;inset-inline:0;top:100%;background:#fff;border-bottom:1px solid #dde5ec;flex-direction:column;align-items:stretch;gap:0;padding:10px 16px 18px;max-height:78vh;overflow-y:auto;box-shadow:0 1px 2px rgba(15,29,43,.05),0 8px 24px -12px rgba(15,29,43,.18)}.site-header[data-menu="open"] .nav{display:flex}.site-header .nav-link{width:100%;justify-content:space-between;padding:14px 6px;font-size:1rem;border-bottom:1px solid #dde5ec}.site-header .dropdown{position:static;border:0;box-shadow:none;padding:4px 0 10px;min-width:0;background:#f2f6f9;border-radius:8px;margin-block:6px}.site-header .header-cta{display:none}.topbar-links{display:none}}
@media(max-width:620px){.topbar{display:none}.site-header .brand-en{display:none}}

/* PAGE 24 LOCAL LAYOUT — does not alter approved GLOBAL HEADER V3 */
main .wrap{width:min(1380px,calc(100% - 40px));margin-inline:auto}
.btn-ghost{background:transparent;color:#0f1d2b;border-color:#c3d2de}.btn-ghost:hover{border-color:#a8c83e;color:#6f8f14;background:rgba(168,200,62,.06)}
.btn-wa{background:#1faa53;color:#fff;border-color:#1faa53}.btn-wa:hover{background:#188443;border-color:#188443}
.btn.btn-ghost svg,.btn.btn-wa svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.9;flex:none}

/* Page 24 only */
.breadcrumbs{display:flex;gap:7px;flex-wrap:wrap;align-items:center;font-size:12px;color:var(--muted);margin-bottom:16px}.breadcrumbs a{color:#238db8;font-weight:850}.breadcrumbs span[aria-current="page"]{font-weight:800;color:#526a74}
.p24-hero{padding-top:54px}.p24-hero .hero-grid{grid-template-columns:minmax(0,.92fr) minmax(430px,1.08fr);gap:42px}.p24-hero h1{font-size:clamp(36px,4.2vw,58px);line-height:1.14}.p24-hero .hero-copy>p{line-height:1.9;max-width:720px}
.chiller-hero-figure{margin:0;border:1px solid #d8e5ea;border-radius:26px;background:linear-gradient(145deg,#ffffff,#eef5f7);box-shadow:var(--shadow);overflow:hidden}.chiller-hero-figure .hero-photo{position:relative;min-height:480px;display:grid;place-items:center;padding:0;background:radial-gradient(circle at 50% 46%,#fff 0,#f8fbfc 50%,#edf4f6 100%)}.chiller-hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}.hero-legend{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;position:absolute;left:20px;right:20px;bottom:20px}.hero-legend span{background:rgba(16,47,60,.93);color:#fff;border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:8px 7px;text-align:center;font-size:10.5px;font-weight:850;backdrop-filter:blur(4px)}.chiller-hero-figure figcaption{padding:12px 16px;border-top:1px solid #d8e5ea;background:#fff;color:#607984;font-size:12px;line-height:1.7}
.p24-answer{background:#fff;border:1px solid var(--line);border-radius:24px;padding:30px;box-shadow:var(--shadow)}.p24-answer h2{font-size:clamp(27px,3vw,40px);margin:7px 0 10px;line-height:1.3}.p24-answer>p{margin:0;color:var(--muted);max-width:920px}
.boundary-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:25px}.boundary-card{border:1px solid var(--line);border-radius:22px;padding:24px;background:#fff;position:relative;overflow:hidden}.boundary-card:before{content:"";position:absolute;inset-inline-start:0;top:0;bottom:0;width:5px;background:#2997c2}.boundary-card.system:before{background:#8faf20}.boundary-card .boundary-label{display:inline-flex;padding:5px 9px;border-radius:999px;background:#edf7fb;color:#227fa6;font-size:11px;font-weight:950}.boundary-card.system .boundary-label{background:#f2f7df;color:#627f16}.boundary-card h3{font-size:23px;line-height:1.35;margin:10px 0 7px}.boundary-card p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.9}.part-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:15px}.part-list span{border:1px solid #dbe6ea;border-radius:999px;padding:6px 10px;background:#fbfdfe;font-size:11px;font-weight:850;color:#49626d}
.route-wrap{position:relative;margin-top:28px}.route-line{position:absolute;top:28px;right:6%;left:6%;height:2px;background:linear-gradient(90deg,#d6e5ea,#85b01b,#2e98c3);z-index:0}.diagnostic-route{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;position:relative;z-index:1;counter-reset:p24step}.route-step{counter-increment:p24step;text-align:center}.route-step:before{content:counter(p24step);width:56px;height:56px;border-radius:50%;display:grid;place-items:center;margin:0 auto 11px;background:#fff;border:2px solid #9fc8d8;box-shadow:0 6px 16px rgba(15,29,43,.07);font-size:14px;font-weight:950;color:#173f4e}.route-step:nth-child(4):before,.route-step:nth-child(5):before{border-color:#b6ce72}.route-step:nth-child(6):before{background:#102f3c;border-color:#102f3c;color:#fff}.route-step b{display:block;font-size:14px;line-height:1.45;margin-bottom:3px}.route-step span{display:block;color:var(--muted);font-size:11.5px;line-height:1.65}
.control-split{display:grid;grid-template-columns:minmax(340px,.92fr) 1.08fr;gap:28px;align-items:center}.control-photo{margin:0;border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}.control-photo img{width:100%;aspect-ratio:4/3;object-fit:cover}.control-photo figcaption{padding:12px 14px;color:var(--muted);font-size:12px;line-height:1.7}.control-list{display:grid;grid-template-columns:1fr 1fr;gap:11px}.control-item{border:1px solid var(--line);border-radius:16px;background:#fff;padding:16px}.control-item svg{width:24px;height:24px;stroke:#238db8;fill:none;stroke-width:1.8;margin-bottom:8px}.control-item b{display:block;font-size:15px;margin-bottom:3px}.control-item span{display:block;color:var(--muted);font-size:12px;line-height:1.75}
.issue-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.issue-card{border:1px solid var(--line);border-radius:22px;background:#fff;padding:22px;box-shadow:0 12px 34px -31px rgba(15,29,43,.45);position:relative;overflow:hidden}.issue-card:before{content:"";position:absolute;inset-inline-start:0;top:0;bottom:0;width:5px;background:#2e98c3}.issue-card h3{font-size:23px;line-height:1.35;margin:0 0 12px;color:#173f4e}.issue-block{border-top:1px solid #e7eef2;padding-top:12px;margin-top:12px}.issue-label{display:block;font-size:11px;font-weight:950;color:#6e8590;margin-bottom:6px}.issue-text{display:block;font-size:13px;line-height:1.8}.issue-text.start{color:#227fa6;font-weight:850}.issue-text.expand{color:var(--muted)}.warning-note{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;border:1px solid #efd8c4;background:#fff9f2;border-radius:20px;padding:21px 23px}.warning-note .warn-icon{width:46px;height:46px;border-radius:14px;background:#ef7a35;color:#fff;display:grid;place-items:center;font-size:24px;font-weight:950}.warning-note h3{margin:0 0 5px;font-size:21px}.warning-note p{margin:0;color:#735c4c;font-size:13.5px;line-height:1.9}
.type-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.type-card{border:1px solid var(--line);border-radius:22px;background:#fff;padding:24px;box-shadow:0 12px 34px -31px rgba(15,29,43,.45)}.type-card .type-kicker{display:inline-flex;padding:5px 9px;border-radius:999px;background:#edf7fb;color:#227fa6;font-size:11px;font-weight:950}.type-card.water .type-kicker{background:#f2f7df;color:#627f16}.type-card h3{font-size:22px;margin:11px 0 7px;line-height:1.35}.type-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.85}.type-card ul{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:7px}.type-card li{position:relative;padding-inline-start:18px;color:#49626d;font-size:12.5px;line-height:1.7}.type-card li:before{content:"";position:absolute;inset-inline-start:0;top:.72em;width:7px;height:7px;border-radius:50%;background:#2e98c3}.type-card.water li:before{background:#8faf20}
.service-photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.service-photo{margin:0;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff;box-shadow:0 12px 34px -30px rgba(15,29,43,.5)}.service-photo img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;background:#eef4f6}.service-photo figcaption{padding:13px 14px;color:var(--muted);font-size:12.5px;line-height:1.75}.service-photo strong{display:block;color:#173f4e;font-size:14px;margin-bottom:2px}
.send-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.send-card{border:1px solid var(--line);border-radius:17px;padding:18px;background:#fff}.send-card strong{display:block;font-size:15px;margin:7px 0 5px}.send-card p{margin:0;color:var(--muted);font-size:12.5px;line-height:1.75}.send-num{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#eff7d9;color:#668712;font-weight:900}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.related-card{border:1px solid var(--line);border-radius:20px;padding:22px;background:#fff}.related-card h3{font-size:20px;margin:4px 0 6px}.related-card p{margin:0;color:var(--muted);font-size:13px}.related-card a{display:inline-flex;margin-top:12px;color:#238db8;font-weight:900;font-size:13px}
.products-footer-brand strong{color:#fff}.products-footer-brand p{font-size:13px;color:#a9bec7;margin:5px 0}.footer-bottom a{display:inline;color:#c9e975}
@media(max-width:1480px){.site-header .dropdown--wide{min-width:0}.site-header .dropdown--wide .dropdown-grid{grid-template-columns:1fr}.site-header .burger{display:block}.site-header .nav{display:none;position:absolute;inset-inline:0;top:100%;background:#fff;border-bottom:1px solid #dde5ec;flex-direction:column;align-items:stretch;gap:0;padding:10px 16px 18px;max-height:78vh;overflow-y:auto;box-shadow:0 1px 2px rgba(15,29,43,.05),0 8px 24px -12px rgba(15,29,43,.18)}.site-header[data-menu="open"] .nav{display:flex}.site-header .nav-link,.site-header>.wrap .nav>a{width:100%;justify-content:space-between;padding:14px 6px;font-size:1rem;border-bottom:1px solid #dde5ec}.site-header .dropdown{position:static;border:0;box-shadow:none;padding:4px 0 10px;min-width:0;background:#f2f6f9;border-radius:8px;margin-block:6px}.site-header .header-cta{display:none}.topbar-links{display:none}}
@media(max-width:1120px){.p24-hero .hero-grid{grid-template-columns:1fr}.chiller-hero-figure{max-width:780px;margin-inline:auto}.control-split{grid-template-columns:1fr}.control-photo{max-width:720px;margin-inline:auto}.diagnostic-route{grid-template-columns:repeat(3,1fr);gap:24px 12px}.route-line{display:none}.issue-grid{grid-template-columns:1fr 1fr}.service-photo-grid{grid-template-columns:1fr 1fr}.service-photo:last-child{grid-column:1/-1;max-width:680px;width:100%;justify-self:center}.send-grid{grid-template-columns:1fr 1fr}.related-grid{grid-template-columns:1fr}}
@media(max-width:760px){.topbar{display:none}.site-header .brand-en{display:none}.p24-hero{padding-top:34px}.boundary-grid,.type-grid{grid-template-columns:1fr}.chiller-hero-figure .hero-photo{min-height:360px}.hero-legend{grid-template-columns:repeat(2,1fr)}.diagnostic-route{grid-template-columns:1fr 1fr}.control-list{grid-template-columns:1fr}.issue-grid,.service-photo-grid,.send-grid,.related-grid{grid-template-columns:1fr}.service-photo:last-child{grid-column:auto;max-width:none}.p24-answer{padding:21px}.warning-note{grid-template-columns:1fr}.warning-note .warn-icon{width:42px;height:42px}.hero-legend span:last-child{grid-column:1/-1}}
@media(max-width:480px){.diagnostic-route{grid-template-columns:1fr}}