.systems-intro{background:#f4f7fa}.systems-intro>.wrap>p{max-width:780px}.systems-metrics{display:flex;gap:50px;margin:35px 0 45px}.systems-metrics div{display:grid;gap:5px}.systems-metrics strong{font-size:30px;color:#05243f}.systems-metrics span{font-size:13px;color:#52687b}.systems-browser{display:grid;grid-template-columns:310px minmax(0,1fr);gap:24px;align-items:start}.system-tabs{display:grid;gap:5px;background:white;border:1px solid #dee7ed;border-radius:18px;padding:12px}.system-tabs button{font:inherit;font-size:14px;line-height:1.4;text-align:left;display:flex;gap:12px;align-items:center;padding:13px;border:0;border-radius:9px;background:transparent;color:#173b54;cursor:pointer}.system-tabs button span{font-size:11px;color:#b34148}.system-tabs button[aria-selected=true]{background:#05243f;color:white}.system-tabs button[aria-selected=true] span{color:#ff858a}.system-tabs button:hover{box-shadow:inset 0 0 0 1px #b5c6d2}.system-tabs button:focus-visible,.system-panel:focus-visible{outline:3px solid #d33b48;outline-offset:3px}.system-panel{background:#fff;border:1px solid #dce6ee;border-radius:22px;padding:44px;box-shadow:0 20px 50px #05243f0a;min-height:620px}.system-panel[hidden]{display:none}.system-panel-top{display:flex;justify-content:space-between;gap:15px;font-size:12px;color:#617489;margin-bottom:30px}.system-category{background:#fcebed;color:#a32538;padding:5px 12px;border-radius:30px}.system-panel h2{font-size:clamp(27px,3vw,43px);line-height:1.12;letter-spacing:-1px;color:#05243f;margin-bottom:22px}.system-lead{font-size:21px;line-height:1.5}.system-workflow{background:linear-gradient(125deg,#05243f,#164c68);padding:24px;border-radius:14px;color:white;margin:28px 0}.system-workflow small{letter-spacing:2px;font-size:10px;color:#bcd3df}.system-workflow div{display:flex;gap:16px;padding-top:20px;align-items:center}.system-workflow b{color:#ff7a83;font-size:12px}.system-workflow span{font-size:15px}.system-actions{display:flex;flex-wrap:wrap;gap:12px;margin:25px 0}.system-actions .button:not(.red){background:#eaf0f5;color:#05243f}.system-note{font-size:12px;color:#62788c}.systems-article{max-width:850px!important}.systems-article h2{font-size:28px;margin:40px 0 16px;color:#05243f}.systems-article h3{font-size:20px;margin:26px 0 10px}.systems-article p,.systems-article li{line-height:1.85;color:#42566a}.systems-article-image{display:block;width:100%;height:auto;border-radius:18px;margin-bottom:36px}.systems-home{background:#edf4f7}.systems-home p{max-width:720px}.systems-home .button{margin-top:20px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.math-check{padding:20px;border:1px solid #d5e1e9;border-radius:12px;background:#f4f7fa}.math-check input{max-width:180px}.math-check button{border:0;background:transparent;text-decoration:underline;cursor:pointer;color:#173b54}.services-dropdown{max-height:75vh;overflow-y:auto}@media(min-width:901px){.system-panels{position:sticky;top:120px}}@media(max-width:900px){.systems-browser{grid-template-columns:1fr}.system-tabs{display:flex;overflow:auto;gap:6px;scroll-snap-type:x proximity}.system-tabs button{flex:0 0 210px;scroll-snap-align:start}.system-panel{padding:25px;min-height:0}.systems-metrics{gap:25px;flex-wrap:wrap}.system-panel-top{margin-bottom:20px}.system-actions .button{width:100%;text-align:center}}

/* Mobile system chooser: every category is available without horizontal swiping. */
.systems-mobile-nav{display:none}
@media(max-width:900px){
.systems-browser{min-width:0;gap:16px}
.systems-browser.is-enhanced .system-tabs{display:none}
.systems-browser.is-enhanced .systems-mobile-nav{display:block;position:sticky;top:0;z-index:20;padding:16px;background:#fff;border:1px solid #dce6ee;border-radius:14px;box-shadow:0 8px 24px #05243f12}
.systems-mobile-nav label{display:block;font-weight:700;font-size:13px;color:#05243f;margin-bottom:8px}
.systems-mobile-nav select{display:block;width:100%;max-width:100%;min-width:0;font:inherit;font-size:16px;font-weight:600;line-height:1.4;color:#05243f;background:#edf3f7;border:1px solid #b9cbd7;border-radius:8px;padding:13px 32px 13px 12px;min-height:50px}
.systems-mobile-controls{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:12px}
.systems-mobile-controls button{font:inherit;font-size:14px;font-weight:700;border:1px solid #cbd9e3;color:#05243f;background:#fff;border-radius:8px;min-height:44px;padding:10px 16px;cursor:pointer}
.systems-mobile-controls button:disabled{opacity:.4;cursor:default}
.systems-mobile-controls span{font-size:12px;color:#52687b;white-space:nowrap}
.systems-mobile-nav select:focus-visible,.systems-mobile-controls button:focus-visible{outline:3px solid #d33b48;outline-offset:2px}
.system-panel{min-width:0;overflow-wrap:anywhere;scroll-margin-top:210px}
.system-panel h2{font-size:29px;letter-spacing:-.5px}
.system-panel-top{flex-wrap:wrap}
.systems-intro{padding-top:35px}
.systems-metrics{margin:24px 0;gap:20px}
.systems-metrics strong{font-size:24px}
.system-actions{gap:10px}.system-actions .button{min-height:48px}
}