:root{--bg:#f4f4f5;--paper:#fff;--ink:#18181b;--ink2:#3f3f46;--teal:#0d9488;--teal-d:#0b766c;--rule:#e4e4e7;--or:#f97316;--or-d:#c2410c;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 "Hind",system-ui,sans-serif;overflow-wrap:break-word}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal-d);text-underline-offset:2px}
a:hover{color:var(--or-d)}
h1,h2,h3,h4{font-family:"Rajdhani","Hind",sans-serif;line-height:1.15;margin:1.6em 0 .5em;letter-spacing:.01em}
h1{font-size:2.1rem;margin:.2em 0 .3em}
h2{font-size:1.55rem;border-top:2px solid var(--ink);padding-top:.45em}
h3{font-size:1.22rem}
p,ul,ol{margin:0 0 1em}
li{margin:.25em 0}
.skip{position:absolute;left:-999px;top:0}
.skip:focus{left:8px;top:8px;background:var(--paper);padding:10px;z-index:9}

/* ---------- top strip ---------- */
.strip{background:var(--ink);color:#fafafa}
.strip-in{max-width:1120px;margin:0 auto;padding:6px 16px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.mark{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;min-height:44px}
.mark svg{width:34px;height:34px}
.mark b{font:700 1.45rem/1 "Rajdhani",sans-serif;letter-spacing:.04em}
.mark small{display:block;font:500 .75rem/1.2 "Hind",sans-serif;color:#a1a1aa;letter-spacing:.08em;text-transform:uppercase}
.menu{margin-left:auto}
.menu summary{list-style:none;cursor:pointer;border:1px solid #52525b;border-radius:3px;padding:8px 14px;font:600 .9rem "Rajdhani",sans-serif;letter-spacing:.1em;text-transform:uppercase;min-height:44px;display:flex;align-items:center}
.menu summary::-webkit-details-marker{display:none}
.menu ul{list-style:none;margin:0;padding:0}
.menu a{display:flex;align-items:center;min-height:44px;padding:0 12px;color:#e4e4e7;text-decoration:none;font:600 1rem "Rajdhani",sans-serif;letter-spacing:.06em;text-transform:uppercase}
.menu a:hover,.menu a[aria-current]{color:var(--or)}
@media(max-width:899px){.menu[open] ul{position:absolute;left:0;right:0;background:var(--ink);padding:6px 16px 14px;z-index:5;border-top:1px solid #3f3f46}
.strip{position:relative}}
.desk{display:none;margin-left:auto}
.desk ul{list-style:none;margin:0;padding:0;display:flex;gap:2px}
.desk a{display:flex;align-items:center;min-height:44px;padding:0 12px;color:#e4e4e7;text-decoration:none;font:600 1rem "Rajdhani",sans-serif;letter-spacing:.06em;text-transform:uppercase}
.desk a:hover,.desk a[aria-current]{color:var(--or)}
@media(min-width:900px){.menu{display:none}.desk{display:block}}

/* ---------- sheet ---------- */
.sheet{max-width:1120px;margin:0 auto;padding:18px 16px 40px}
.page{background:var(--paper);border:1px solid var(--rule);border-radius:2px;padding:0 0 26px}
.crumbs{font-size:.85rem;color:var(--ink2);padding:10px 22px 0;margin:0}
.crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:4px}
.crumbs li+li::before{content:"/";margin-right:4px;color:#a1a1aa}
.crumbs a{display:inline}
.dochead{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:2px solid var(--ink);border-top:2px solid var(--ink);margin:10px 0 0}
.dochead div{padding:8px 12px;border-right:1px solid var(--rule)}
.dochead div:last-child{border-right:0}
.dochead dt,.lbl{font:600 .75rem/1.3 "Rajdhani",sans-serif;letter-spacing:.14em;text-transform:uppercase;color:var(--teal-d)}
.dochead dd{margin:2px 0 0;font:600 1rem/1.3 var(--mono);font-size:.9rem}
.titleblk{padding:14px 22px 4px;display:grid;grid-template-columns:1fr;gap:6px}
.titleblk .kicker{font:700 .8rem "Rajdhani",sans-serif;letter-spacing:.18em;text-transform:uppercase;color:var(--or-d)}
.lede{font-size:1.08rem;color:var(--ink2);max-width:62ch}
.cols{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;padding:0 22px}
@media(min-width:980px){.cols{grid-template-columns:minmax(0,1fr) 270px}}
.prose{max-width:74ch}
.prose h2:first-child{margin-top:.6em}
.plate{margin:10px 0 18px;border:1px solid var(--rule)}
.plate figcaption{font-size:.85rem;color:var(--ink2);padding:6px 10px;border-top:1px solid var(--rule);background:#fafafa}
.plate figcaption b{font-family:"Rajdhani",sans-serif;letter-spacing:.1em;color:var(--teal-d);margin-right:6px}

/* spec table */
.tbl{overflow-x:auto;margin:0 0 1.2em;border:1px solid var(--ink);border-radius:2px}
table{border-collapse:collapse;width:100%;font-size:.95rem}
caption{caption-side:top;text-align:left;font:700 .85rem "Rajdhani",sans-serif;letter-spacing:.12em;text-transform:uppercase;background:var(--ink);color:#fff;padding:6px 10px}
th,td{border-bottom:1px solid var(--rule);padding:8px 10px;text-align:left;vertical-align:top}
thead th{background:#fafafa;font:700 .8rem "Rajdhani",sans-serif;letter-spacing:.1em;text-transform:uppercase;color:var(--ink2);border-bottom:1px solid var(--ink)}
tbody th{font-weight:600;width:38%;background:#fcfcfc}
td.num{font-family:var(--mono);font-size:.88rem;white-space:nowrap}
.st{display:inline-block;font:700 .75rem/1 "Rajdhani",sans-serif;letter-spacing:.08em;text-transform:uppercase;padding:4px 6px;border-radius:2px;margin-top:4px}
.st-v{background:#ccfbf1;color:#115e59}
.st-c{background:#fff7ed;color:#9a3412;border:1px solid #fed7aa}
.st-x{background:#e4e4e7;color:#27272a}
sup a{text-decoration:none;font-family:var(--mono);font-size:.78rem;padding:0 2px}

/* absolute maximum ratings (risk) */
.amr{border:2px solid var(--or);border-radius:2px;margin:18px 0;background:#fffaf5}
.amr p{margin:0;padding:10px 14px}
.amr .amr-h{background:var(--or);color:#fff;font:700 .85rem "Rajdhani",sans-serif;letter-spacing:.14em;text-transform:uppercase;padding:6px 14px}

.callout{border-left:4px solid var(--teal);background:#f0fdfa;padding:10px 14px;margin:0 0 1.2em}
.steps{counter-reset:s;list-style:none;padding:0}
.steps>li{counter-increment:s;position:relative;padding:4px 0 8px 46px;border-bottom:1px dashed var(--rule)}
.steps>li::before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:4px;font:700 1rem var(--mono);color:var(--teal-d);border:1px solid var(--teal);border-radius:2px;padding:1px 5px}
.pinout{font-family:var(--mono);font-size:.88rem}

/* FAQ */
.qa{border-top:1px solid var(--ink)}
.qa details{border-bottom:1px solid var(--rule)}
.qa summary{cursor:pointer;padding:12px 4px;font-weight:600;min-height:44px}
.qa details>div{padding:0 4px 10px}

/* footnotes */
.notes{border-top:2px solid var(--ink);margin-top:26px;padding-top:8px;font-size:.9rem;color:var(--ink2)}
.notes ol{padding-left:1.6em}

/* aside */
.side{font-size:.93rem}
.side .box{border:1px solid var(--ink);border-radius:2px;margin-bottom:16px}
.side .box p.lbl{margin:0;padding:6px 10px;background:var(--ink);color:#fff}
.side ul{list-style:none;margin:0;padding:4px 10px 8px}
.side li a{display:flex;min-height:40px;align-items:center;text-decoration:none;border-bottom:1px solid var(--rule)}
.side li code{font-family:var(--mono);font-size:.78rem;color:var(--teal-d);margin-right:8px}

/* footer */
.foot{background:var(--ink);color:#d4d4d8;font-size:.92rem}
.foot-in{max-width:1120px;margin:0 auto;padding:26px 16px;display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.foot p.lbl{color:var(--or);margin:0 0 6px}
.foot ul{list-style:none;padding:0;margin:0}
.foot a{color:#e4e4e7;display:inline-block;padding:6px 0;min-height:32px}
.foot .legal{grid-column:1/-1;border-top:1px solid #3f3f46;padding-top:12px;color:#a1a1aa;font-size:.85rem}

/* ---------- home catalog ---------- */
.cat-top{display:grid;grid-template-columns:1fr;gap:0;border-bottom:2px solid var(--ink)}
@media(min-width:900px){.cat-top{grid-template-columns:1.25fr 1fr}}
.cat-top .t{padding:18px 22px}
.cat-top figure{margin:0;border-left:1px solid var(--rule)}
.series{padding:6px 22px}
.parts{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));margin:10px 0 8px}
.part{border:1px solid var(--ink);border-radius:3px;display:flex;flex-direction:column;background:var(--paper)}
.part .pn{display:flex;justify-content:space-between;gap:8px;background:#fafafa;border-bottom:1px solid var(--rule);padding:6px 10px;font:600 .8rem var(--mono)}
.part .pn span:last-child{color:var(--or-d)}
.part h3{margin:8px 10px 4px;font-size:1.15rem}
.part h3 a{color:var(--ink);text-decoration:none}
.part h3 a:hover{color:var(--teal-d)}
.part p{margin:0 10px 10px;font-size:.93rem;color:var(--ink2)}
.part .pk{margin-top:auto;border-top:1px dashed var(--rule);padding:6px 10px;font-size:.8rem;color:var(--ink2)}
.legend{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin:10px 0 18px}
.legend div{border:1px solid var(--rule);padding:10px}
.blockdia{border:1px solid var(--ink);padding:10px;margin:8px 0 18px;background:#fafafa}
.blockdia svg{width:100%;height:auto;max-width:720px;margin:0 auto;display:block}
.revtab td:first-child{font-family:var(--mono)}
@media(max-width:620px){.dochead{grid-template-columns:1fr 1fr}.dochead div:nth-child(2){border-right:0}.dochead div:nth-child(-n+2){border-bottom:1px solid var(--rule)}h1{font-size:1.75rem}.crumbs,.titleblk,.cols,.series{padding-left:14px;padding-right:14px}.cat-top .t{padding:14px}tbody th{width:44%}}