:root{--navy:#0b2852;--blue:#176cc1;--orange:#dc3c00;--green:#18826d;--violet:#6254af;--paper:#f5f8fc;--ink:#18334f;--muted:#587087;--line:#d7e2ed;--shadow:0 12px 34px rgba(11,40,82,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(135deg,#f2f6fb,#fff 58%,#fff4ef);color:var(--ink);font:18px/1.55 Arial,Helvetica,sans-serif}a{color:#075fa9}
.topbar{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}.top-inner{max-width:1380px;margin:auto;padding:11px 22px;display:flex;align-items:center;gap:18px}.brand{font-weight:900;color:var(--navy);white-space:nowrap}.brand span{color:var(--orange)}.progress{height:10px;background:#e4eaf1;border-radius:99px;overflow:hidden;flex:1}.progress span{display:block;width:var(--progress);height:100%;background:linear-gradient(90deg,var(--orange),var(--blue))}.step-label{font-size:14px;color:var(--muted);white-space:nowrap}
.layout{max-width:1380px;margin:auto;padding:30px 22px 80px;display:grid;grid-template-columns:300px minmax(0,1fr);gap:30px}.side{position:sticky;top:76px;align-self:start;max-height:calc(100vh - 95px);overflow:auto;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}.side a{display:block;padding:9px 10px;border-radius:9px;color:#35536d;text-decoration:none;font-size:14px}.side a:hover{background:#f4f6fa}.side a.active{background:#fff0e9;color:#742713;font-weight:900}.side .divider{margin:10px 8px 5px;padding-top:10px;border-top:1px solid var(--line);color:var(--violet);font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.06em}
.main{min-width:0}.hero,.card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}.eyebrow{color:var(--orange);font-size:14px;font-weight:900;text-transform:uppercase;letter-spacing:.08em}h1{margin:7px 0 16px;color:var(--navy);font-size:clamp(34px,5vw,55px);line-height:1.06;letter-spacing:-.035em}h2{margin:32px 0 12px;color:var(--navy);font-size:28px}h3{color:var(--navy)}.lead{max-width:900px;margin:0 0 18px;color:#395d78;font-size:22px}
.hero-image,.screenshot{display:block;width:100%;max-height:650px;object-fit:contain;background:#f1f4f7;border:1px solid var(--line);border-radius:16px;padding:8px}.screenshot{cursor:zoom-in}.compact-shot{max-height:430px}.tiny-shot{max-height:270px}.caption{margin:7px 4px 0;color:var(--muted);font-size:14px}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.image-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.mini{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.mini h3{margin:0 0 7px;font-size:20px}.mini p{margin:0;color:#45637a}
.task,.hint,.warn,.deep{margin:20px 0;border-left:8px solid var(--orange);border-radius:14px;background:#fff3ed;padding:17px 20px}.task strong,.hint strong,.warn strong,.deep strong{display:block;margin-bottom:4px}.hint{border-color:var(--blue);background:#edf6ff}.warn{border-color:#d4a000;background:#fff9df}.deep{border-color:var(--violet);background:#f4f1ff}.pill{display:inline-block;margin:3px 6px 3px 0;padding:5px 10px;border-radius:99px;background:#ffe8df;color:#7c2a17;font-size:14px;font-weight:800}
.steps{counter-reset:step;list-style:none;padding:0}.steps li{position:relative;margin:12px 0;padding:14px 16px 14px 54px;background:#fff;border:1px solid var(--line);border-radius:14px}.steps li:before{counter-increment:step;content:counter(step);position:absolute;left:14px;top:12px;width:29px;height:29px;border-radius:50%;display:grid;place-items:center;background:var(--orange);color:#fff;font-weight:900}.checklist{list-style:none;padding:0}.checklist li{position:relative;padding:7px 0 7px 34px}.checklist li:before{content:"✓";position:absolute;left:0;top:7px;width:23px;height:23px;border-radius:50%;display:grid;place-items:center;background:#dcf4ec;color:var(--green);font-weight:900}
.compare{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}.compare th,.compare td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.compare th{background:#fff0e9;color:#6f2918}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}.btn{display:inline-block;border:0;border-radius:12px;padding:13px 18px;text-decoration:none;font:800 17px Arial;cursor:pointer}.btn.primary{background:var(--navy);color:#fff}.btn.done{background:#f1b29e;color:#40160c}.btn.help{background:#ece7fb;color:#554397}.btn.secondary{background:#e8f1f7;color:var(--navy)}.btn[aria-pressed=true]{outline:4px solid rgba(24,130,109,.22);background:#8ed1c2}.helpbox{display:none;margin:12px 0;padding:17px;background:#f5f1ff;border:1px solid #d9d0f2;border-radius:14px}.helpbox.open{display:block}.nav-bottom{display:flex;justify-content:space-between;gap:12px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}.status{min-height:26px;color:var(--green);font-weight:900}.choice{display:block;margin:10px 0;padding:14px;background:#fff;border:2px solid var(--line);border-radius:14px;cursor:pointer}.choice:has(input:checked){border-color:var(--orange);background:#fff2ec}
.lightbox{position:fixed;inset:0;z-index:99;display:none;align-items:center;justify-content:center;padding:24px;background:rgba(3,16,32,.91)}.lightbox.open{display:flex}.lightbox img{max-width:96vw;max-height:92vh;object-fit:contain;background:#fff}.lightbox button{position:absolute;right:20px;top:15px;border:0;background:#fff;color:#111;border-radius:50%;width:44px;height:44px;font-size:28px;cursor:pointer}details{margin:12px 0;padding:13px 16px;background:#fff;border:1px solid var(--line);border-radius:13px}summary{cursor:pointer;color:var(--navy);font-weight:900}button:focus-visible,a:focus-visible,input:focus-visible{outline:4px solid #78b9ec;outline-offset:3px}
@media(max-width:900px){body{font-size:17px}.layout{display:block;padding:18px 14px 60px}.side{position:static;max-height:none;margin-bottom:20px;display:flex;overflow:auto}.side a{min-width:max-content}.side .divider{display:none}.grid,.grid.three,.image-row{grid-template-columns:1fr}.hero,.card{padding:19px}.top-inner{padding:9px 12px}.brand{font-size:14px}.step-label{font-size:12px}.nav-bottom{flex-wrap:wrap}.compare{font-size:15px}}@media print{.topbar,.side,.actions,.nav-bottom{display:none}.layout{display:block}.hero,.card{box-shadow:none}}