:root{
  --bg:#f4f7fb;--bg2:#edf3f8;--glass:rgba(255,255,255,.76);--solid:#fff;--text:#172033;--muted:#667085;
  --line:rgba(23,32,51,.11);--primary:#4056c8;--primary2:#2e47b4;--accent:#168a8a;--shadow:0 18px 60px rgba(29,43,78,.10);--r:22px
}
[data-theme="dark"]{
  --bg:#0d1523;--bg2:#111f33;--glass:rgba(20,31,50,.79);--solid:#18263b;--text:#eff4fb;--muted:#a9b5c7;
  --line:rgba(255,255,255,.10);--primary:#8b99f3;--primary2:#7181ef;--accent:#5bc6bf;--shadow:0 20px 60px rgba(0,0,0,.28)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.65 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:
radial-gradient(circle at 8% 0%,rgba(64,86,200,.11),transparent 30rem),
radial-gradient(circle at 96% 8%,rgba(22,138,138,.09),transparent 28rem),
linear-gradient(180deg,var(--bg),var(--bg2));min-height:100vh}
a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.container{width:min(1180px,calc(100% - 34px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:14px;top:10px;z-index:99;background:var(--solid);padding:9px 12px;border-radius:10px}
header{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 74%,transparent);backdrop-filter:blur(18px)}
.nav{height:74px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{display:flex;align-items:center;gap:10px;font-weight:850;letter-spacing:-.03em}.brandmark{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 9px 26px rgba(64,86,200,.22)}
.navlinks{display:flex;align-items:center;gap:5px}.navlinks a{padding:9px 12px;border-radius:10px;color:var(--muted);font-weight:650}.navlinks a:hover,.navlinks a.active{background:var(--glass);color:var(--text)}.iconbtn{width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:var(--glass);color:var(--text);cursor:pointer}.menubtn{display:none}
.hero{padding:76px 0 42px}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center}.eyebrow{display:inline-flex;padding:7px 11px;border:1px solid var(--line);background:var(--glass);border-radius:999px;color:var(--primary);font-weight:800;font-size:.84rem}.hero h1,.pagehero h1,h2,h3{line-height:1.15;letter-spacing:-.035em}.hero h1{font-size:clamp(2.7rem,6vw,5rem);margin:17px 0}.hero p,.lead{color:var(--muted);font-size:1.1rem}.glass,.toolbox{background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(18px);border-radius:var(--r)}
.hero-card{padding:22px}.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.mini-grid>div{padding:16px;border:1px solid var(--line);background:var(--solid);border-radius:15px}.mini-grid strong{display:block;font-size:1.3rem}.mini-grid span{font-size:.85rem;color:var(--muted)}
.search{display:flex;gap:10px;margin-top:25px;max-width:720px}input,textarea,select{width:100%;border:1px solid var(--line);border-radius:13px;background:var(--solid);color:var(--text);padding:13px 14px;outline:none}textarea{resize:vertical}input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 4px color-mix(in srgb,var(--primary) 11%,transparent)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;border:0;border-radius:12px;padding:11px 15px;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;font-weight:750;cursor:pointer}.btn.secondary{background:var(--solid);color:var(--text);border:1px solid var(--line)}.btn.ghost{background:transparent;color:var(--muted);border:1px solid var(--line)}.disabled{opacity:.45;pointer-events:none}
.section{padding:40px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:19px}.section-head h2{font-size:clamp(1.7rem,4vw,2.5rem);margin:0}.section-head p{color:var(--muted);max-width:610px;margin:0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{padding:21px;min-height:188px;transition:.2s}.card:hover{transform:translateY(-3px);box-shadow:0 22px 56px rgba(29,43,78,.13)}.tool-icon{display:grid;place-items:center;width:43px;height:43px;border-radius:13px;background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 14%,var(--solid)),color-mix(in srgb,var(--accent) 12%,var(--solid)));border:1px solid var(--line);color:var(--primary);font-weight:850}.card h3{margin:14px 0 7px}.card p{margin:0;color:var(--muted);font-size:.94rem}.tag{display:inline-block;margin-top:12px;color:var(--accent);font-size:.78rem;font-weight:850;text-transform:uppercase;letter-spacing:.08em}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.feature{padding:20px}.feature strong{display:block;margin-bottom:6px}.feature p{margin:0;color:var(--muted);font-size:.94rem}
.pagehero{padding:56px 0 24px}.pagehero h1{font-size:clamp(2.3rem,5vw,4rem);margin:12px 0}.pagehero p{max-width:780px;color:var(--muted);font-size:1.08rem}.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:.9rem}.breadcrumbs span{opacity:.6}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:22px;align-items:start}.toolbox{padding:22px}.toolbox label{display:block;font-weight:700;margin:0 0 7px}.two-col,.three-col{display:grid;gap:12px;margin-top:12px}.two-col{grid-template-columns:1fr 1fr}.three-col{grid-template-columns:repeat(3,1fr)}.actions{display:flex;gap:9px;align-items:center;margin-top:15px}.actions.wrap{flex-wrap:wrap}.options{display:flex;gap:16px;flex-wrap:wrap;margin-top:13px;color:var(--muted)}.options label{margin:0;font-weight:600}.options input{width:auto}
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}.metric-grid.compact{grid-template-columns:repeat(3,1fr)}.metric-grid>div,.result{padding:15px;border:1px solid var(--line);border-radius:14px;background:var(--solid)}.metric-grid strong,.result strong{display:block;font-size:1.25rem}.metric-grid span,.result span,.result small{display:block;color:var(--muted);font-size:.83rem}.result{margin-top:16px}.result strong{font-size:1.55rem;margin:3px 0}.status,.fine{color:var(--muted);font-size:.88rem}.code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.inline-field{max-width:220px}.password-row{display:grid;grid-template-columns:1fr auto;gap:10px;margin-top:14px}.preview{margin-top:15px;min-height:100px;border:1px dashed var(--line);border-radius:15px;background:var(--solid);display:grid;place-items:center;overflow:hidden}.preview canvas{max-width:100%;max-height:420px}
.prose{max-width:860px;padding:28px 0}.prose h2{margin-top:37px;font-size:1.62rem}.prose h3{margin-top:23px}.prose p,.prose li{color:color-mix(in srgb,var(--text) 78%,var(--muted))}.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}.callout{padding:18px 20px;border-left:4px solid var(--accent);background:var(--glass);border-radius:0 14px 14px 0}.faq{border-top:1px solid var(--line);padding:16px 0}.faq h3{margin:0 0 5px}.faq p{margin:0}.side{position:sticky;top:94px;padding:18px}.side h3{margin-top:0}.side a{display:block;padding:8px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:.92rem}.side a:last-child{border-bottom:0}.side a:hover{color:var(--primary)}
.guide-card{padding:22px}.guide-card h3{margin:7px 0}.guide-card p{color:var(--muted)}.meta{font-size:.79rem;color:var(--accent);font-weight:850;text-transform:uppercase;letter-spacing:.08em}.source-list{padding:17px 20px;border:1px solid var(--line);background:var(--glass);border-radius:15px}
footer{margin-top:58px;border-top:1px solid var(--line);background:color-mix(in srgb,var(--glass) 55%,transparent)}.footer-grid{padding:40px 0;display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:26px}.footer-grid h4{margin:0 0 8px}.footer-grid p,.footer-grid a{display:block;color:var(--muted);font-size:.92rem;padding:3px 0}.footer-bottom{border-top:1px solid var(--line);padding:16px 0;color:var(--muted);font-size:.84rem;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.notice{padding:16px 18px;border:1px solid var(--line);background:var(--glass);border-radius:15px;color:var(--muted)}
@media(max-width:900px){.hero-grid,.layout{grid-template-columns:1fr}.cards{grid-template-columns:repeat(2,1fr)}.side{position:static}.footer-grid{grid-template-columns:1fr 1fr}.navlinks{display:none;position:absolute;top:74px;left:17px;right:17px;flex-direction:column;align-items:stretch;padding:12px;background:var(--solid);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.navlinks.open{display:flex}.menubtn{display:inline-grid;place-items:center}}
@media(max-width:620px){.container{width:min(100% - 24px,1180px)}.cards,.feature-grid,.two-col,.three-col,.metric-grid,.metric-grid.compact,.footer-grid{grid-template-columns:1fr}.hero{padding-top:48px}.hero h1{font-size:2.6rem}.search{flex-direction:column}.toolbox{padding:16px}.password-row{grid-template-columns:1fr}.nav{height:66px}.navlinks{top:66px}}

.article-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:.88rem;margin-top:14px}.quick-answer{margin:22px 0;padding:20px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 7%,var(--solid)),color-mix(in srgb,var(--accent) 6%,var(--solid)))}.quick-answer h2{margin:0 0 8px;font-size:1.18rem}.quick-answer p{margin:0;color:var(--text)}.takeaways{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:0;list-style:none}.takeaways li{padding:13px 14px;border:1px solid var(--line);border-radius:13px;background:var(--solid);margin:0!important}.article-links{display:grid;grid-template-columns:1fr 1fr;gap:12px}.article-links a{padding:14px;border:1px solid var(--line);border-radius:13px;background:var(--solid);text-decoration:none}@media(max-width:620px){.takeaways,.article-links{grid-template-columns:1fr}}