:root{--bg:#FAFAF8;--surface:#fff;--ink:#0B0B0C;--ink-2:#17171A;--line:#E6E4DE;--line-2:#D8D5CD;--mute:#5E5C55;--soft:#F2F1EC;--heat:#FF4A1C;--btn:#D93A0B;--btn-h:#BF3209;--heat-ink:#C23209;--blue:#2F6FED;--green:#1F9254;--amber:#D98E04;--red:#D92D20;--r:16px;--font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{max-width:100%;display:block}
img{height:auto}
a{color:inherit}
a:focus-visible,summary:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}
.wrap{width:min(1180px,100% - 32px);margin-inline:auto}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:10px 16px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

/* header */
header.top{position:sticky;top:0;z-index:50;background:rgba(250,250,248,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.top .in{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px}
header.top .logo{display:flex;align-items:center;min-height:44px}
header.top .logo svg{height:32px;width:auto;max-width:none;color:var(--ink)}
header.top nav{display:flex;align-items:center;gap:24px}
header.top nav a.l{font-weight:600;font-size:15px;color:var(--mute);text-decoration:none;padding:8px 0}
header.top nav a.l:hover,header.top nav a.l[aria-current="page"]{color:var(--ink)}
header.top nav a.l[aria-current="page"]{text-decoration:underline;text-decoration-color:var(--heat);text-decoration-thickness:3px;text-underline-offset:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;border-radius:12px;font-weight:700;font-size:16.5px;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:background .15s ease,transform .15s ease;font-family:inherit}
.btn-primary{background:var(--btn);color:#fff}
.btn-primary:hover{background:var(--btn-h);transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:rgba(11,11,12,.06)}
header.top .btn{min-height:46px;padding:0 20px;font-size:15px;border-radius:10px}
@media(max-width:1020px){header.top nav a.l{display:none}}
@media(max-width:480px){header.top .logo svg{height:26px}header.top .btn{padding:0 14px;font-size:14px}}

/* hero */
.hero{padding:56px 0 44px;border-bottom:1px solid var(--line);background:var(--surface)}
.crumbs{font-size:14.5px;color:var(--mute);margin-bottom:26px}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px 10px}
.crumbs li+li::before{content:"/";margin-right:10px;color:var(--line-2)}
.crumbs a{color:var(--mute);text-underline-offset:3px}
.crumbs a:hover{color:var(--ink)}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--heat-ink);margin-bottom:12px}
h1{font-size:clamp(34px,5.2vw,60px);font-weight:800;letter-spacing:-.035em;line-height:1.05;max-width:960px}
.answer{font-size:clamp(18px,1.7vw,21px);color:var(--ink-2);max-width:820px;margin-top:22px;line-height:1.55}
.answer strong{font-weight:700}
.byline{display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;margin-top:26px;font-size:14.5px;color:var(--mute)}
.byline b{color:var(--ink);font-weight:700}
.byline a{color:var(--ink);text-underline-offset:3px}
.hero .row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* layout */
.page{display:grid;grid-template-columns:260px minmax(0,1fr);gap:64px;padding:56px 0 24px;align-items:start}
.page.single{grid-template-columns:minmax(0,1fr);max-width:820px;margin-inline:auto}
@media(max-width:980px){.page{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:36px}}
aside.toc{position:sticky;top:92px;font-size:15px}
aside.toc b{display:block;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--mute);margin-bottom:12px}
aside.toc ol{list-style:none;display:grid;gap:2px;border-left:2px solid var(--line)}
aside.toc a{display:block;padding:7px 0 7px 16px;margin-left:-2px;border-left:2px solid transparent;color:var(--mute);text-decoration:none;font-weight:500;line-height:1.35}
aside.toc a:hover{color:var(--ink);border-left-color:var(--heat)}
@media(max-width:980px){aside.toc{position:static;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px}aside.toc ol{border-left:0;grid-template-columns:1fr}aside.toc a{padding:6px 0;margin:0;border:0}}

/* article */
article{min-width:0}
article h2{font-size:clamp(26px,3vw,36px);font-weight:800;letter-spacing:-.028em;line-height:1.12;margin:68px 0 16px}
article h2:first-child{margin-top:0}
article h3{font-size:clamp(20px,2vw,24px);font-weight:800;letter-spacing:-.02em;line-height:1.2;margin:34px 0 10px}
article p,article li,article dd{font-size:18px;color:var(--ink-2)}
article p{margin-bottom:18px}
article ul,article ol.n{padding-left:24px;margin:0 0 20px;display:grid;gap:10px}
article li::marker{color:var(--heat-ink);font-weight:700}
article a{color:var(--heat-ink);font-weight:600;text-underline-offset:3px}
article a:hover{color:var(--btn-h)}
article strong{font-weight:700;color:var(--ink)}
article em{font-style:italic}
.box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px 26px;margin:0 0 28px}
.box>b:first-child,.box>h3:first-child{display:block;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--heat-ink);margin:0 0 10px;font-weight:700}
.box ul{margin-bottom:0}
.box p:last-child{margin-bottom:0}
.box.key{border-left:5px solid var(--heat)}
.box.warn{border-left:5px solid var(--amber);background:#FFFBF2}
.box.note{background:var(--soft)}
.tbl{overflow-x:auto;margin:0 0 30px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
.tbl table{border-collapse:collapse;width:100%;min-width:640px}
.tbl caption{text-align:left;padding:14px 18px;font-weight:700;font-size:15px;color:var(--mute);border-bottom:1px solid var(--line)}
.tbl th,.tbl td{padding:14px 18px;text-align:left;vertical-align:top;font-size:16px;border-bottom:1px solid var(--line);line-height:1.5}
.tbl thead th{background:var(--soft);font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--mute)}
.tbl tbody th{font-weight:700;color:var(--ink);background:#FDFDFB}
.tbl tr:last-child th,.tbl tr:last-child td{border-bottom:0}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:0 0 28px}
.stats div{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 18px 16px}
.stats b{display:block;font-size:34px;font-weight:800;letter-spacing:-.03em;line-height:1}
.stats span{display:block;margin-top:8px;font-size:14.5px;color:var(--mute);line-height:1.35}
figure{margin:0 0 30px}
figure img{border:1px solid var(--line-2);border-radius:14px;box-shadow:0 24px 60px -42px rgba(0,0,0,.45);background:#fff;width:100%}
figcaption{font-size:14.5px;color:var(--mute);margin-top:10px}
blockquote{border-left:4px solid var(--line-2);padding:4px 0 4px 20px;margin:0 0 22px}
blockquote p{font-size:19px;margin-bottom:6px}
blockquote cite{font-size:14.5px;color:var(--mute);font-style:normal}
dl.gl{display:grid;gap:0;margin:0 0 24px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);overflow:hidden}
dl.gl div{padding:16px 20px;border-bottom:1px solid var(--line)}
dl.gl div:last-child{border-bottom:0}
dl.gl dt{font-weight:800;font-size:17px;margin-bottom:2px}
dl.gl dd{font-size:16.5px;color:var(--mute)}
.steps{counter-reset:s;list-style:none;padding:0!important;display:grid;gap:14px!important}
.steps li{counter-increment:s;position:relative;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px 18px 68px}
.steps li::before{content:counter(s);position:absolute;left:18px;top:16px;width:36px;height:36px;border-radius:50%;background:var(--ink);color:#fff;font-weight:800;display:grid;place-items:center;font-size:16px}
.steps li strong{display:block;font-size:18px;margin-bottom:2px}
.steps li span{color:var(--mute);font-size:16.5px;display:block}
.cta-inline{display:flex;flex-wrap:wrap;gap:14px;align-items:center;background:var(--ink);color:#fff;border-radius:var(--r);padding:26px 28px;margin:34px 0}
.cta-inline p{flex:1 1 320px;margin:0;color:#E8EAF0;font-size:18px}
.cta-inline p strong{color:#fff}
.cta-inline .btn{flex:none}

/* faq */
.faq{margin:0 0 20px}
.faq details{border-top:1px solid var(--line-2)}
.faq details:last-of-type{border-bottom:1px solid var(--line-2)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:68px;font-size:clamp(17px,1.8vw,20px);font-weight:700;letter-spacing:-.01em;padding:14px 0}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:30px;font-weight:400;color:var(--heat-ink);transition:transform .2s ease;line-height:1}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 22px;color:var(--mute);font-size:17.5px;max-width:760px;margin:0}

/* related */
.related{background:var(--soft);border-block:1px solid var(--line);padding:72px 0;margin-top:64px}
.related h2{font-size:clamp(26px,3vw,36px);font-weight:800;letter-spacing:-.028em;margin-bottom:24px}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}
.rel-grid a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;text-decoration:none;transition:border-color .15s ease,transform .15s ease}
.rel-grid a:hover{border-color:var(--ink);transform:translateY(-2px)}
.rel-grid small{display:block;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--heat-ink);margin-bottom:8px}
.rel-grid b{display:block;font-size:19px;letter-spacing:-.015em;line-height:1.25;margin-bottom:6px}
.rel-grid span{display:block;color:var(--mute);font-size:15.5px;line-height:1.5}

/* closing cta */
.close{background:var(--ink);color:#fff;padding:80px 0}
.close .eyebrow{color:#FF7A55}
.close h2{font-size:clamp(28px,3.6vw,46px);font-weight:800;letter-spacing:-.03em;line-height:1.08;max-width:760px;margin-bottom:14px}
.close p.lead{color:#B9B7AF;font-size:19px;max-width:660px;margin-bottom:26px}
.close small{display:block;margin-top:14px;color:#9A9890;font-size:14px}

/* footer */
footer{background:var(--ink);color:#B9B7AF;font-size:15px;border-top:1px solid #26262a}
footer .f-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:56px 0}
footer .flogo{height:30px;width:auto;color:#fff;margin-bottom:16px}
footer .f-brand p{max-width:340px;color:#B9B7AF;font-size:15.5px}
footer h3{font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#FF7A55;margin-bottom:12px}
footer .f-col a{display:block;padding:8px 0;color:#E8EAF0;text-decoration:none;font-weight:500;font-size:15.5px}
footer .f-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
footer .f-base{padding:24px 0 36px;border-top:1px solid #26262a;font-size:14px;color:#9A9890}
@media(max-width:760px){footer .f-main{grid-template-columns:1fr 1fr}}
@media(max-width:480px){footer .f-main{grid-template-columns:1fr}.btn{width:100%}.hero .row .btn{width:100%}.cta-inline .btn{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}