:root{--paper:#faf7f2;--ink:#1F1B16;--mut:#6b655d;--line:#e3ddd2;--cta:#ff5000;
--ctah:#e5152c;--dark:#333333;--card:#ffffff;--mono:ui-monospace,'Cascadia Mono',Consolas,monospace}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);
font:17px/1.65 system-ui,'Segoe UI',Roboto,Arial,sans-serif}
h1,h2,h3{font-family:Georgia,'Times New Roman',serif;line-height:1.22;margin:0 0 .5em}
h1{font-size:clamp(1.7rem,4.2vw,2.6rem)}
h2{font-size:clamp(1.35rem,2.8vw,1.8rem)}
h3{font-size:1.12rem}
p{margin:.6em 0}
a{color:var(--ink);text-decoration-color:var(--cta);text-decoration-thickness:2px}
a:hover{color:var(--ctah)}
img{max-width:100%;height:auto;display:block}
.om-wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.om-prose{max-width:72ch}
/* header */
.om-top{background:var(--card);border-bottom:3px solid var(--dark)}
.om-topin{max-width:1080px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.om-mark{font-family:var(--mono);font-weight:700;font-size:1.02rem;letter-spacing:.02em;
text-decoration:none;display:inline-flex;align-items:center;gap:9px;min-height:44px}
.om-mark img{width:108px;height:27px}
.om-mark span{border-left:2px solid var(--line);padding-left:9px;color:var(--mut);font-weight:400;font-size:.8rem}
.om-nav{margin-left:auto}
.om-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:2px;flex-wrap:wrap}
.om-nav a{display:inline-flex;align-items:center;min-height:44px;min-width:44px;padding:0 11px;
text-decoration:none;font-size:.92rem;border-bottom:3px solid transparent}
.om-nav a:hover,.om-nav a[aria-current]{border-bottom-color:var(--cta)}
/* hero */
.om-hero{background:var(--card);border-bottom:1px solid var(--line);padding:40px 0 26px}
.om-hero h1{max-width:21ch}
.om-lede{max-width:64ch;font-size:1.08rem;color:var(--mut);margin:.4em 0 1.1em}
.om-find{display:flex;max-width:720px;border:2px solid var(--ink);background:#fff}
.om-find label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.om-find input[type=search]{flex:1;min-width:0;border:0;padding:14px 16px;font:inherit;background:transparent}
.om-find input[type=search]:focus{outline:3px solid var(--cta);outline-offset:-3px}
.om-find button{border:0;background:var(--cta);color:var(--ink);font:inherit;font-weight:700;
padding:0 26px;cursor:pointer;min-height:52px}
.om-find button:hover{background:var(--ctah);color:#fff}
.om-sub{list-style:none;display:flex;flex-wrap:wrap;gap:4px 18px;margin:14px 0 0;padding:0;font-size:.9rem}
.om-sub a{display:inline-flex;align-items:center;min-height:44px;min-width:44px;color:var(--mut)}
/* wall */
.om-wall{padding:40px 0;background:var(--paper)}
.om-wall>.om-wrap>p{max-width:72ch}
.om-grid{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:14px;
grid-template-columns:repeat(auto-fill,minmax(205px,1fr))}
.om-grid li{min-width:0}
.om-tile{display:block;background:var(--card);border:1px solid var(--line);text-decoration:none;
transition:border-color .15s}
.om-tile:hover{border-color:var(--cta)}
.om-tile img{width:100%;aspect-ratio:1;object-fit:cover}
.om-tilet{display:flex;justify-content:space-between;align-items:center;gap:6px;padding:9px 11px;min-height:44px}
.om-tilet b{font-weight:600;font-size:.93rem}
.om-kind{font-family:var(--mono);font-size:.66rem;color:var(--mut);text-transform:uppercase;
letter-spacing:.06em;white-space:nowrap}
/* numbered manual sections */
.om-sec{padding:44px 0;border-top:1px solid var(--line)}
.om-sec:nth-of-type(even){background:var(--card)}
.om-eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
color:var(--mut);margin:0 0 6px}
/* duo */
.om-duo{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:stretch}
.om-duo>*{min-width:0}
.om-duo figure,.om-band figure{margin:0;border:1px solid var(--line);background:var(--card);padding:10px}
.om-duo figure{display:flex;flex-direction:column}
.om-duo figcaption{margin-top:auto}
.om-duo figcaption,.om-band figcaption{font-size:.84rem;color:var(--mut);padding:8px 2px 0}
.om-band figure{max-width:640px;margin:18px 0 0}
/* spec card */
.om-spec{border:2px solid var(--ink);background:var(--card);margin:18px 0 0}
.om-spec table{width:100%;border-collapse:collapse;font-size:.92rem}
.om-spec caption{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;
text-align:left;padding:10px 14px;border-bottom:2px solid var(--ink);background:var(--paper)}
.om-spec th{font-family:var(--mono);font-weight:400;font-size:.78rem;text-transform:uppercase;
letter-spacing:.07em;color:var(--mut);text-align:left;padding:10px 14px;border-bottom:1px solid var(--line)}
.om-spec td{padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.om-spec tr:last-child td{border-bottom:0}
.om-specwrap{overflow-x:auto}
/* note + caution */
.om-note,.om-caution{padding:14px 18px;margin:18px 0;max-width:72ch}
.om-note{background:var(--card);border-left:4px solid var(--mut)}
.om-caution{background:#fff3ec;border-left:4px solid var(--cta)}
.om-note b:first-child,.om-caution b:first-child{font-family:var(--mono);font-size:.74rem;
letter-spacing:.12em;text-transform:uppercase;display:block;margin-bottom:4px}
/* steps */
.om-steps{list-style:none;margin:18px 0 0;padding:0;counter-reset:om}
.om-steps li{counter-increment:om;padding:12px 0 12px 58px;position:relative;border-top:1px dashed var(--line);max-width:72ch}
.om-steps li::before{content:counter(om,decimal-leading-zero);position:absolute;left:0;top:12px;
font-family:var(--mono);font-size:1.05rem;color:var(--cta);font-weight:700}
/* edge finder */
.om-edge{border:2px solid var(--ink);background:var(--card);padding:22px;max-width:860px}
.om-edge label{font-family:var(--mono);font-size:.78rem;letter-spacing:.09em;text-transform:uppercase;display:block;margin-bottom:8px}
.om-edge select{font:inherit;padding:10px 12px;border:2px solid var(--ink);background:#fff;max-width:100%;min-height:44px}
.om-edgeout{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
.om-edgeout>div{min-width:0;padding:14px;border:1px solid var(--line)}
.om-edgeout h3{font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;margin:0 0 8px}
.om-edgeout .om-get{background:var(--paper)}
.om-edgeout .om-bound{background:#fff3ec}
/* cta row */
.om-ctas{display:flex;gap:14px;flex-wrap:wrap;margin:20px 0 0}
.om-cta{display:inline-flex;align-items:center;background:var(--cta);color:var(--ink);font-weight:700;
padding:12px 22px;min-height:44px;text-decoration:none;border:2px solid var(--ink)}
.om-cta:hover{background:var(--ctah);color:#fff}
.om-cta--ghost{background:transparent}
.om-cta--ghost:hover{background:var(--dark);color:#fff}
/* faq */
.om-faq{max-width:72ch}
.om-faq details{border:1px solid var(--line);background:var(--card);margin:0 0 10px}
.om-faq summary{cursor:pointer;padding:13px 16px;font-weight:600;min-height:44px}
.om-faq summary:hover{color:var(--ctah)}
.om-faq div{padding:0 16px 13px;color:var(--ink)}
/* footer */
.om-foot{background:var(--dark);color:#fff;margin-top:56px;padding:40px 0 26px}
.om-foot a{color:#fff;text-decoration-color:var(--cta)}
.om-footgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:26px}
.om-foot h2{font-size:.86rem;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase}
.om-foot ul{list-style:none;margin:0;padding:0}
.om-foot li a{display:inline-flex;align-items:center;min-height:44px;min-width:44px;font-size:.92rem}
.om-fine{border-top:1px solid #4a4a4a;margin-top:28px;padding-top:18px;font-size:.84rem;color:#cfcac2}
.om-fine a{color:#cfcac2}
/* responsive */
@media(max-width:860px){
.om-duo,.om-edgeout{grid-template-columns:1fr}
.om-hero{padding:28px 0 20px}
.om-find button{padding:0 18px}
}

/* Account handbook: a clean typographic surface and the real registration screen. */
:root{--paper:#f5f4f1;--mut:#565a60;--ink:#202329;--line:#d8dbdf;--dark:#22272d}h1,h2,h3{font-family:system-ui,'Segoe UI',sans-serif;letter-spacing:-.03em}h2{font-weight:650}.om-wrap,.om-topin{max-width:1200px}.om-top{border-bottom:1px solid var(--line)}.om-mark span{max-width:150px;line-height:1.4;font-family:system-ui}.om-nav a{font-size:14px;padding-inline:9px}.ac-skip{position:absolute;left:-9999px;top:8px;z-index:20;background:var(--ink);color:var(--card);padding:12px}.ac-skip:focus{left:8px}.ac-menu{display:none;min-height:44px;padding:8px 16px;background:var(--card);color:var(--ink);border:1px solid var(--ink);font:600 15px system-ui;cursor:pointer}.ac-hero{display:grid;grid-template-columns:1.25fr .8fr;align-items:center;gap:70px;padding-block:54px}.ac-hero h1{font-size:clamp(40px,4.7vw,65px);line-height:1.03;letter-spacing:-.055em;font-weight:720;margin:20px 0}.ac-lede{font-size:19px;max-width:550px;color:var(--mut)}.ac-edition{font-size:13px;margin-top:26px;color:var(--mut)}.ac-cover{margin:0;border:1px solid var(--line);background:var(--card)}.ac-cover img{width:100%;height:auto;max-height:470px;object-fit:contain;background:#ff5000}.ac-cover figcaption{padding:14px 18px;font-size:14px}.ac-cover figcaption a{display:inline-flex;align-items:center;min-height:44px}.ac-text-link{display:inline-flex;align-items:center;min-height:44px;font-size:15px;font-weight:600}.ac-search{padding-block:24px;background:var(--dark);color:#fff}.ac-search .om-find{max-width:none;border:0;background:none;display:block}.ac-search .om-find label{position:static;clip:auto;width:auto;height:auto;display:block;color:#fff;font:600 15px system-ui;margin-bottom:10px}.ac-search-row{display:flex;border:1px solid #8b9199;background:#fff}.ac-search .om-find input{color:#202329}.ac-search .om-find button{color:#202329}.ac-search p{font-size:13px;color:#d7dce1;margin-bottom:0}.ac-catalog{padding-block:40px}.ac-heading{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:22px}.ac-heading h2{margin:0}.ac-heading>a{display:inline-flex;align-items:center;min-height:44px;font-size:14px;flex-shrink:0}.ac-products{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.ac-products .om-tile{display:flex;align-items:center;gap:10px;padding:10px}.ac-products .om-tile img{width:88px;height:88px;object-fit:cover}.ac-products .om-kind{display:none}.ac-products .om-tilet{padding:0;min-width:0}.ac-products .om-tilet b{font-size:15px}.ac-all{display:flex;flex-wrap:wrap;gap:0 22px;margin-top:15px}.ac-all .om-tile{display:inline-flex;align-items:center;min-height:44px;border:0;background:none}.ac-all .om-tilet{padding:0}.ac-all b{font-weight:400;font-size:14px;text-decoration:underline;text-decoration-color:var(--cta);text-underline-offset:4px}.ac-small{font-size:13px;color:var(--mut)}.ac-handbook{background:var(--card);padding:40px 0;border-block:1px solid var(--line)}.ac-chapters{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}.ac-chapters>a{color:var(--ink);text-decoration:none;border-top:3px solid var(--cta);padding-top:16px}.ac-chapters>a:hover h3{text-decoration:underline}.ac-chapters span{font:500 35px/1 var(--mono);color:#9b3500}.ac-chapters h3{font-size:23px;margin:20px 0 10px}.ac-chapters p{font-size:15px;color:var(--mut)}.ac-basics{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding-block:44px}.ac-basics p{font-size:16px}.ac-basics a{min-height:44px;display:inline-flex;align-items:center}.ac-next{padding-block:24px;border-top:1px solid var(--line)}.ac-next p{font-size:16px}.ac-next div{display:flex;flex-wrap:wrap;gap:0 26px}.ac-next a{min-height:44px;display:inline-flex;align-items:center;font-size:15px}.om-foot{margin-top:28px}.om-hero h1{max-width:25ch;font-size:clamp(34px,4.1vw,52px)}.om-duo{align-items:start}.om-duo figure{align-self:start}.om-prose{max-width:78ch}.om-band figure{max-width:1100px}.om-sec{padding-block:36px}.om-specwrap{max-width:100%;scrollbar-width:thin}.om-spec table{overflow-wrap:anywhere}.ac-full,.ac-guide-fig>a{display:flex;align-items:center;min-height:44px}.om-duo figcaption>a,.om-band figcaption>a{display:inline-flex;min-height:44px;align-items:center}.ac-practice{margin-block:34px;padding-block:25px;border-left:4px solid var(--cta);background:var(--card)}.ac-practice p{max-width:85ch}.ac-practice a{min-height:44px;display:inline-flex;align-items:center}.ac-guide-start{padding-block:25px}.ac-guide-start>a{min-height:44px;display:inline-flex;align-items:center}.ac-guide-start ol{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;list-style:none;padding:18px 0;margin:0}.ac-guide-start li a{display:flex;align-items:center;min-height:60px;border:1px solid var(--line);background:var(--card);padding:10px;font-size:14px;text-decoration:none}.ac-step{padding-block:28px 42px;border-top:1px solid var(--line)}.ac-step header{display:flex;gap:24px;max-width:900px;margin:0 auto 24px}.ac-step header>span{font:500 44px var(--mono);color:#a73b00}.ac-step header a{min-height:44px;display:inline-flex;align-items:center}.ac-guide-fig{margin:20px 0;border:1px solid var(--line);background:white}.ac-guide-fig img{width:100%;height:auto}.ac-guide-fig figcaption{background:var(--card);padding:14px 18px;font-size:15px}.ac-guide-fig figcaption a{display:inline-flex;align-items:center;min-height:44px}.om-edge select{width:100%;white-space:normal;font-size:16px}.om-edgeout{min-height:240px}.om-edgeout p{margin:0}.om-edgeout h3{letter-spacing:.04em}.om-find input[type=search]{color:var(--ink)}:focus-visible{outline:3px solid #aa3700;outline-offset:3px}
@media(max-width:1000px){.ac-menu{display:block;margin-left:auto}.om-nav{display:none;width:100%;margin:0}.om-nav.ac-open{display:block}.ac-hero{gap:34px}.ac-products{grid-template-columns:repeat(2,1fr)}.ac-chapters{gap:18px}.ac-heading{align-items:start}.ac-guide-start ol{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.ac-hero{grid-template-columns:1fr;padding-block:32px;gap:24px}.ac-hero h1{font-size:46px}.ac-lede{font-size:18px}.ac-cover{max-width:420px}.ac-cover img{max-height:390px}.ac-edition{margin-top:18px}.om-topin{padding-inline:16px;gap:8px}.om-mark img{width:86px;height:auto}.om-mark span{font-size:11px;max-width:110px}.ac-menu{padding-inline:12px}.ac-search{margin-inline:12px}.ac-products{gap:10px}.ac-products .om-tile{padding:6px;display:block}.ac-products .om-tile img{width:100%;height:auto;aspect-ratio:1}.ac-products .om-tilet{min-height:44px;padding-top:5px}.ac-all{gap:0 16px}.ac-heading{display:block}.ac-chapters{grid-template-columns:repeat(2,1fr);gap:25px 20px}.ac-chapters h3{font-size:21px}.ac-basics{grid-template-columns:1fr;gap:26px;padding-block:30px}.ac-step header{gap:12px}.ac-step header>span{font-size:30px}.ac-step h2{font-size:27px}.ac-guide-start li a{font-size:13px}.ac-guide-fig figcaption{padding:12px;font-size:14px}.om-edge{padding:16px}.om-edgeout{min-height:0}.om-edgeout>div{padding:12px}.om-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.om-tilet{display:block}.om-kind{font-size:10px}.om-specwrap table{min-width:500px}}
@media(prefers-color-scheme:dark){:root{--paper:#171b20;--ink:#f0f1f2;--mut:#bcc3cb;--line:#424a54;--card:#22272d;--dark:#101318}a:hover{color:#ffb99a}.om-find{background:#14181d}.om-find button,.om-cta{color:#202329}.om-caution,.om-edgeout .om-bound{background:#3b281e}.om-edge select{background:#14181d;color:var(--ink)}.om-note,.om-edgeout .om-get{background:var(--paper)}.om-sub a{color:var(--mut)}.ac-chapters span,.ac-step header>span{color:#ffad7b}.ac-search{background:#101318}.ac-guide-fig{background:#fff}.ac-search input{color:#202329!important}.om-fine{color:#ccd0d5}.om-cta--ghost{color:var(--ink)}:focus-visible{outline-color:#ffb78d}}