:root{font-family:Arial,Helvetica,sans-serif;color:#15304a;background:#f2f6fa;font-size:16px;--navy:#0b2545;--blue:#006bca;--line:#d9e3ec;--muted:#546b80}*{box-sizing:border-box}body{margin:0}a{color:#005cad;text-underline-offset:3px}button,input,textarea{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,textarea:focus-visible{outline:3px solid #00a4d6;outline-offset:4px}header{background:var(--navy);color:white;padding:22px max(24px,calc((100vw - 1200px)/2));display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;gap:14px;align-items:center;color:white;text-decoration:none;font-size:14px;font-weight:800;letter-spacing:1px}.brand small{display:block;font-size:14px;font-weight:400;color:#c3d7e9;letter-spacing:0;margin-top:6px}.mark{font-size:20px;letter-spacing:-1px;padding:10px 9px;border:2px solid #3bd0f2;border-radius:8px}.store-link{color:white;font-size:14px}main{max-width:1250px;padding:36px 25px 25px;margin:auto}.intro{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px}.eyebrow{font-size:12px;letter-spacing:1.5px;font-weight:800;color:#006baf;margin:0 0 10px}h1{font-size:clamp(25px,3vw,36px);letter-spacing:-1px;margin:0 0 12px;line-height:1.2}h2{font-size:25px;letter-spacing:-.5px;margin:0 0 7px}h3{font-size:18px;margin:0 0 16px}p{line-height:1.6;margin:0 0 15px}.sub{color:var(--muted);margin:0}.date{font-size:12px;line-height:1.8;color:var(--muted);text-align:right;white-space:nowrap}.date strong{font-size:14px}#devices{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:25px}.device{background:white;border:1px solid var(--line);border-radius:10px;text-align:left;padding:18px 20px;position:relative;color:var(--navy)}.device strong{font-size:18px;display:block;line-height:1.3}.device small{font-size:14px;color:var(--muted);display:block;margin-top:6px}.device.active{background:var(--navy);color:white;border-color:var(--navy);box-shadow:inset 0 4px #3bd0f2}.device.active small{color:#c3d7e9}.workspace{background:white;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 8px 30px #0b254508}.workspace-head{padding:26px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}#scope{font-size:14px;color:var(--muted);margin:0;max-width:560px}.views{display:flex;border:1px solid var(--line);padding:4px;border-radius:9px;gap:3px}.views button{border:0;background:none;padding:10px 13px;color:var(--muted);font-size:14px;border-radius:5px;white-space:nowrap}.views button[aria-selected=true]{background:#e8f2fb;color:#005caf;font-weight:bold}.safety{margin:20px 28px;padding:13px 16px;border-left:4px solid #e6a132;background:#fff8eb;border-radius:4px;line-height:1.5;font-size:14px;color:#6a4814}.safety button{border:0;background:none;text-decoration:underline;color:#864208;padding:0;font-weight:bold}.diagnostic-grid{display:grid;grid-template-columns:300px 1fr;min-height:500px}.diagnostic-grid aside{padding:20px 20px 28px 28px;border-right:1px solid var(--line)}#issues{display:grid;gap:7px}.issue{border:1px solid transparent;background:#f4f7fa;padding:11px 12px;text-align:left;border-radius:7px;color:var(--navy);font-size:14px;line-height:1.35}.issue strong{display:block;margin-bottom:3px}.issue.selected{background:#e8f3ff;border-color:#72b4ed;box-shadow:inset 3px 0 #0076d4}.issue:hover{border-color:#a8c6e1}#flow{padding:28px;min-width:0}.empty{display:flex;flex-direction:column;justify-content:center;min-height:320px;max-width:520px}.empty h3{font-size:26px;line-height:1.25;margin-bottom:12px}.empty p{color:var(--muted)}.number{display:inline-grid;place-items:center;border-radius:50%;background:#e5f3ff;color:#0065b4;width:35px;height:35px;font-weight:bold;margin-bottom:18px}.badge{display:inline-block;border:1px solid #b6d7f0;color:#005ca5;background:#eff8ff;padding:5px 9px;border-radius:4px;font-size:12px;letter-spacing:.6px;font-weight:bold;margin-bottom:15px}.badge.amber{background:#fff5df;border-color:#eed09a;color:#74501a}.flow-title{font-size:25px;line-height:1.25;margin-bottom:14px}.step-label{font-size:14px;color:var(--muted);margin-bottom:10px}.question{font-size:20px;line-height:1.4;margin:14px 0}.answers{display:grid;gap:10px;margin:24px 0}.answer{padding:14px 18px;border:1px solid #a1c3de;background:#f1f8ff;color:#005ba7;text-align:left;border-radius:7px;font-weight:bold;line-height:1.4}.answer:hover{background:#e0f0fe}.secondary{background:white;border:1px solid var(--line);border-radius:6px;padding:10px 14px;color:var(--muted);font-size:14px}.flow-bottom{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}.tech{background:#f3f6f9;padding:16px;border-radius:6px;font-size:14px;line-height:1.5;color:#415a71}.tech strong{display:block;margin-bottom:5px}.part{border:1px solid #b0d6ee;border-radius:9px;margin-top:25px;padding:20px;display:flex;gap:20px;align-items:center;background:#f5fbff}.part img{width:85px;height:85px;object-fit:contain;background:white;border-radius:6px}.part h4{font-size:18px;margin:4px 0 8px;line-height:1.4}.part p{font-size:14px;margin-bottom:13px}.buy{display:inline-block;text-decoration:none;background:#006dcc;color:white;font-weight:bold;font-size:14px;padding:12px 17px;border-radius:6px}.support{background:#f3f6f9;padding:18px;border-radius:8px;margin-top:20px}.support strong{display:block;margin-bottom:8px}.muted{color:var(--muted);font-size:14px}.checks{padding-left:20px;line-height:1.6}.checks li{margin-bottom:8px}#reference,#notes{padding:12px 28px 30px}details{border:1px solid var(--line);border-radius:7px;margin:10px 0;padding:15px}summary{font-weight:bold;cursor:pointer}details p,details ul{margin-top:14px}.source{font-size:14px;line-height:1.6;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}label{display:block;font-size:14px;margin:20px 0 8px}textarea{display:block;width:100%;border:1px solid #b4c4d2;border-radius:7px;padding:15px;resize:vertical;line-height:1.6}footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:15px;color:var(--muted);font-size:12px;padding:25px 2px;line-height:1.6}footer a{font-size:14px}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;background:white;padding:10px;z-index:2}[hidden]{display:none!important}@media(max-width:950px){.workspace-head{display:block}.views{display:inline-flex;margin-top:20px}.diagnostic-grid{grid-template-columns:250px 1fr}#devices{gap:8px}.device{padding:15px}.device strong{font-size:16px}.date{display:none}}@media(max-width:650px){header{padding:16px}.brand{font-size:12px}.store-link{font-size:12px}main{padding:25px 14px}.intro{margin-bottom:22px}h1{letter-spacing:-.5px}#devices{grid-template-columns:repeat(2,1fr);margin-bottom:20px}.workspace-head{padding:22px 18px}.safety{margin:16px 18px}.diagnostic-grid{display:block}.diagnostic-grid aside{padding:15px 18px 22px;border-right:0;border-bottom:1px solid var(--line)}#issues{grid-template-columns:repeat(2,minmax(0,1fr))}.issue{font-size:14px;padding:10px}#flow{padding:22px 18px}.empty{min-height:170px}.part{padding:15px;gap:12px;align-items:flex-start}.part img{width:60px;height:60px}.part h4{font-size:16px}#reference,#notes{padding:10px 18px 25px}.views{max-width:100%}.views button{padding:9px 11px}.flow-title{font-size:23px}}@media print{header,#devices,.views,.safety,aside,.answers,.flow-bottom,footer{display:none}.workspace{border:0;box-shadow:none}.diagnostic-grid{display:block}#flow{padding:0}#notes[hidden]{display:block!important}textarea{border:0}main{padding:0}.buy{color:black;background:none;padding:0}}

/* Category hub */
.landing-tools{display:flex;align-items:end;justify-content:space-between;gap:20px;margin:0 0 22px}.landing-tools label{margin-top:0;font-weight:bold}.landing-tools input{border:1px solid #b4c4d2;background:white;border-radius:8px;padding:13px 15px;width:min(450px,75vw);font:inherit}.landing-tools input:focus-visible{outline:3px solid #00a4d6;outline-offset:3px}#category-filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}.filter{border:1px solid var(--line);background:white;border-radius:30px;padding:10px 16px;color:var(--navy);font-size:14px}.filter.active{background:var(--navy);color:white}.guide-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.guide-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:12px;background:white;padding:25px;box-shadow:0 4px 18px #0b254505}.guide-card h3{font-size:24px;line-height:1.2}.guide-card p{font-size:14px;color:var(--muted);flex:1}.guide-card .buy{border:0;text-align:left;align-self:flex-start;margin-top:8px}.how-it-works{margin:40px 0;padding:30px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.how-it-works ol{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;padding-left:20px;margin:24px 0}.how-it-works li{padding-left:5px;line-height:1.6}.how-it-works span{display:block;font-size:14px;color:var(--muted)}.how-it-works>p{font-size:14px;color:var(--muted);margin:0}.help-panel{display:flex;gap:30px;align-items:center;justify-content:space-between;padding:28px;background:#e2eff9;border-radius:12px}.help-panel p{margin-bottom:0;max-width:700px}.help-panel .buy{white-space:nowrap}#home-button{margin:0 0 20px}#devices{grid-template-columns:repeat(3,1fr)}@media(max-width:850px){.guide-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.help-panel{display:block}.help-panel .buy{margin-top:20px}}@media(max-width:650px){.landing-tools{display:block}.landing-tools input{width:100%}.landing-tools>p{margin-top:12px}.guide-cards{grid-template-columns:1fr}.guide-card{padding:23px}.how-it-works ol{grid-template-columns:1fr;gap:18px}#devices{grid-template-columns:repeat(2,minmax(0,1fr))}.help-panel{padding:22px}}@media print{#landing,#home-button{display:none}}