:root{
  --bg:#f3f5f9;--panel:#fff;--panel2:#eef1f6;--line:#dde3ec;--text:#16202e;--muted:#64748b;
  --accent:#2563eb;--accent-ink:#fff;--ok:#0f9d58;--warn:#d97706;--bad:#dc2626;--buy:#f97316;
  --head:#0b1220;--head-ink:#e8eefc;--band1:#1e293b;--band2:#3b3a8c;--radius:10px;--shadow:0 1px 2px rgba(15,23,42,.06),0 4px 14px rgba(15,23,42,.05);
  --font:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
:root[data-theme="dark"]{--bg:#0d1320;--panel:#151d2e;--panel2:#1b2539;--line:#27344c;--text:#e6ecf7;--muted:#8fa0bb;--accent:#4c8dff;--shadow:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0d1320;--panel:#151d2e;--panel2:#1b2539;--line:#27344c;--text:#e6ecf7;--muted:#8fa0bb;--accent:#4c8dff;--shadow:none}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:14.5px/1.55 var(--font);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{max-width:1240px;margin:0 auto;padding:0 18px}

/* header */
header.site{background:var(--head);color:var(--head-ink);position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(255,255,255,.06)}
header.site .wrap{display:flex;align-items:center;gap:18px;height:58px}
.logo{font-weight:800;font-size:19px;color:#fff;letter-spacing:-.3px;white-space:nowrap}
.logo b{color:#6ea8ff}
nav.main{display:flex;gap:2px;flex:1;align-items:center}
nav.main>a,nav.main summary{color:#b6c4de;padding:8px 12px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;list-style:none;white-space:nowrap}
nav.main summary::-webkit-details-marker{display:none}
nav.main>a:hover,nav.main summary:hover,nav.main>a.on{background:rgba(255,255,255,.08);color:#fff;text-decoration:none}
.dd{position:relative}
.dd[open] summary{background:rgba(255,255,255,.08);color:#fff}
.dd .menu{position:absolute;top:calc(100% + 6px);left:0;background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 30px rgba(0,0,0,.25);padding:8px;min-width:220px;display:grid;gap:2px}
.dd .menu a{color:var(--text);padding:8px 10px;border-radius:8px;font-weight:600}
.dd .menu a:hover{background:var(--panel2);text-decoration:none}
.iconbtn{background:transparent;border:1px solid rgba(255,255,255,.18);color:#dbe6ff;width:34px;height:34px;border-radius:8px;cursor:pointer;font-size:16px}
.iconbtn:hover{background:rgba(255,255,255,.08)}
@media(max-width:860px){nav.main>a:not(.keep){display:none}header.site .wrap{gap:10px}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:var(--panel);color:var(--text);padding:8px 14px;border-radius:8px;font:600 13.5px var(--font);cursor:pointer;text-decoration:none;transition:.12s;white-space:nowrap}
.btn:hover{border-color:var(--accent);text-decoration:none}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.buy{background:var(--buy);border-color:var(--buy);color:#fff}
.btn.buy:hover{filter:brightness(1.07)}
.btn.ghost{background:transparent}
.btn.sm{padding:5px 10px;font-size:12.5px}
.btn.lg{padding:12px 20px;font-size:15px}
.btn[disabled]{opacity:.45;cursor:not-allowed;filter:none}
.btn.add{background:var(--accent);border-color:var(--accent);color:#fff;min-width:64px}

main{padding:22px 0 60px}
h1{font-size:28px;line-height:1.2;margin:0 0 8px;letter-spacing:-.4px}
h2{font-size:19px;margin:30px 0 12px;letter-spacing:-.2px}
.muted{color:var(--muted)}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:12px}
.crumbs a{color:var(--muted)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}

/* band like the reference title strip */
.band{background:linear-gradient(110deg,var(--band1),var(--band2));color:#fff;padding:24px 0}.band + main{padding-top:22px}
.band h1{text-align:center;font-size:30px;margin:0}
.tabs{display:flex;justify-content:center;gap:4px}
.tabs button{background:rgba(255,255,255,.12);color:#dfe6ff;border:0;padding:10px 20px;border-radius:10px 10px 0 0;font:600 14px var(--font);cursor:pointer}
.tabs button.on{background:var(--bg);color:var(--text)}

.hero{padding:34px 0 10px}
.hero h1{font-size:40px;max-width:780px}
.hero p{max-width:650px;color:var(--muted);font-size:17px}
.hero .cta{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px;margin-top:14px}
.cat{display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px;color:var(--text);box-shadow:var(--shadow)}
.cat:hover{border-color:var(--accent);text-decoration:none}
.cat b{display:block;font-size:16px}.cat span{color:var(--muted);font-size:13px}

/* tables */
.tbl{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.tbl th,.tbl td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
.tbl th{font-size:11.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);background:var(--panel2);white-space:nowrap}
.tbl tr:last-child td{border-bottom:0}
.tbl td.num,.tbl th.num{text-align:right;white-space:nowrap}
.tbl-wrap{overflow-x:auto}
.badge{display:inline-block;font-size:11px;font-weight:700;padding:2px 8px;border-radius:99px;background:var(--panel2);border:1px solid var(--line);color:var(--muted);vertical-align:middle;white-space:nowrap}
.badge.refurb{color:var(--warn);border-color:var(--warn)}
.badge.ok{color:var(--ok);border-color:var(--ok)}
.badge.out{color:var(--bad);border-color:var(--bad)}
.price{font-weight:800;font-variant-numeric:tabular-nums}
.specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px 18px;margin:0;padding:0;list-style:none}
.specs li{display:flex;justify-content:space-between;gap:10px;border-bottom:1px dashed var(--line);padding:5px 0}
.specs li span:first-child{color:var(--muted)}
.grid2{display:grid;grid-template-columns:1fr 340px;gap:20px;align-items:start}
@media(max-width:900px){.grid2{grid-template-columns:1fr}.hero h1{font-size:30px}}
.filterbar{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}
input[type=search],input[type=number],input[type=text],select,.in{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:8px 10px;font:14px var(--font);min-width:0}
input:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px}
.summary{position:sticky;top:76px}
.summary .total{font-size:32px;font-weight:800;letter-spacing:-.5px;font-variant-numeric:tabular-nums}
.row-btns{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}

/* builder: share bar */
.sharebar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:var(--panel);border:1px solid var(--line);border-radius:12px 12px 0 0;padding:10px 12px;box-shadow:var(--shadow)}
.sharebar .url{flex:1;min-width:200px;display:flex;align-items:center;gap:8px;background:var(--panel2);border-radius:8px;padding:0 4px 0 10px}
.sharebar .url input{flex:1;min-width:0;width:100%;border:0;background:transparent;font-size:13px;padding:9px 0;color:var(--text)}
.sharebar .url input:focus{outline:0}
.sharebar .grp{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:13px}
.statusbar{display:flex;border-radius:0 0 12px 12px;overflow:hidden;font-weight:700;color:#fff;margin-bottom:18px}
.statusbar .c{flex:1;padding:10px 16px;background:var(--ok);display:flex;gap:8px;align-items:center;min-width:0}
.statusbar .c.warn{background:var(--warn)}.statusbar .c.error{background:var(--bad)}.statusbar .c.idle{background:#64748b}
.statusbar .w{padding:10px 16px;background:#1d4ed8;white-space:nowrap}
.statusbar a{color:#fff;text-decoration:underline}

/* builder: parts table */
.parts{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.parts th{font-size:11.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);text-align:left;padding:10px 12px;background:var(--panel2)}
.parts td{padding:10px 12px;border-top:1px solid var(--line);vertical-align:middle}
.parts td.comp{width:132px;font-weight:700}
.parts td.comp a{color:var(--accent)}
.parts .nm{font-weight:600;overflow-wrap:anywhere}
.parts .sub{font-size:12px;color:var(--muted)}
.parts .thumb{width:46px;height:46px;border-radius:9px;background:var(--panel2);border:1px solid var(--line);display:grid;place-items:center;font-size:10.5px;font-weight:800;color:var(--muted);letter-spacing:.3px;flex:none}
.parts .sel{display:flex;gap:12px;align-items:center}
.parts tr.bad td{background:rgba(220,38,38,.07)}
.parts tr.bad td.comp{box-shadow:inset 3px 0 0 var(--bad)}
.parts td.num{text-align:right;white-space:nowrap}
.parts td.act{white-space:nowrap;text-align:right}
.parts .where{font-size:12px;color:var(--muted)}
.choose{display:inline-flex;align-items:center;gap:6px}
.totalrow{display:flex;justify-content:flex-end;align-items:center;gap:18px;padding:16px 4px;flex-wrap:wrap}
.totalrow .t{font-size:30px;font-weight:800;font-variant-numeric:tabular-nums}
.budget{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.budget input{width:110px}
.progress{height:8px;border-radius:99px;background:var(--panel2);overflow:hidden;margin-top:6px}
.progress i{display:block;height:100%;background:var(--accent);width:0;transition:width .25s}
.progress.over i{background:var(--bad)}
.issue{display:flex;gap:10px;padding:10px 12px;border-radius:8px;margin:7px 0;font-size:13.5px;background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--muted)}
.issue.error{border-left-color:var(--bad)}.issue.warn{border-left-color:var(--warn)}.issue.info{border-left-color:var(--accent)}.issue.ok{border-left-color:var(--ok)}
.issue .tag{font-weight:800;font-size:11px;text-transform:uppercase;letter-spacing:.5px;min-width:64px}
.issue.error .tag{color:var(--bad)}.issue.warn .tag{color:var(--warn)}.issue.info .tag{color:var(--accent)}.issue.ok .tag{color:var(--ok)}
.stack{display:flex;height:16px;border-radius:99px;overflow:hidden;background:var(--panel2)}
.stack i{display:block;height:100%}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:10px;font-size:13px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend em{width:10px;height:10px;border-radius:3px;display:inline-block}
.gauge{height:10px;border-radius:99px;background:var(--panel2);overflow:hidden}
.gauge i{display:block;height:100%;background:linear-gradient(90deg,var(--ok),var(--warn),var(--bad));width:0}
@media(max-width:820px){
  .parts thead{display:none}.parts,.parts tbody,.parts tr,.parts td{display:block;width:100%}
  .parts tr{border-top:1px solid var(--line);padding:8px 4px}.parts td{border:0;padding:4px 10px}.parts td.num,.parts td.act{text-align:left}
}

/* chooser (full page) */
.chooser{display:none}
.chooser.open{display:block}
.ch-grid{display:grid;grid-template-columns:270px 1fr;gap:18px;align-items:start}
@media(max-width:900px){.ch-grid{grid-template-columns:1fr}.side{position:static!important;max-height:none!important}}
.side{position:sticky;top:76px;max-height:calc(100vh - 92px);overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px;box-shadow:var(--shadow)}
.side h3{font-size:12px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);margin:16px 0 8px;border-top:1px solid var(--line);padding-top:12px}
.side h3:first-of-type{border-top:0;padding-top:0;margin-top:10px}
.mini{display:grid;grid-template-columns:1fr auto;gap:4px 8px;font-size:13px}
.mini b{text-align:right}
.check{display:flex;align-items:center;gap:8px;padding:3px 0;font-size:13.5px;cursor:pointer}
.check span.n{margin-left:auto;color:var(--muted);font-size:12px}
.check input{accent-color:var(--accent)}
.facet-more{background:none;border:0;color:var(--accent);cursor:pointer;font-size:12.5px;padding:2px 0}
.range{position:relative;height:28px;margin:6px 4px 2px}
.range input[type=range]{position:absolute;left:0;right:0;width:100%;pointer-events:none;-webkit-appearance:none;appearance:none;background:none;height:28px;margin:0}
.range input[type=range]::-webkit-slider-thumb{pointer-events:auto;-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--accent);border:2px solid #fff;box-shadow:0 1px 4px rgba(0,0,0,.35);cursor:pointer}
.range input[type=range]::-moz-range-thumb{pointer-events:auto;width:16px;height:16px;border-radius:50%;background:var(--accent);border:2px solid #fff;cursor:pointer}
.range .track{position:absolute;top:12px;left:0;right:0;height:4px;border-radius:99px;background:var(--panel2)}
.range .fill{position:absolute;top:12px;height:4px;border-radius:99px;background:var(--accent)}
.pricein{display:flex;gap:8px;align-items:center}.pricein input{width:100%}
.ch-top{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.ch-top h1{font-size:24px;margin:0;flex:1}
.ch-top input[type=search]{min-width:220px;flex:1;max-width:340px}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 10px}
.chip{display:inline-flex;gap:6px;align-items:center;background:var(--panel2);border:1px solid var(--line);border-radius:99px;padding:3px 6px 3px 10px;font-size:12.5px}
.chip button{border:0;background:none;color:var(--muted);cursor:pointer;font-size:14px;line-height:1}
.ctable{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.ctable th{font-size:11.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);text-align:left;padding:10px 10px;background:var(--panel2);white-space:nowrap;cursor:pointer;user-select:none}
.ctable th.on{color:var(--accent)}
.ctable th.on::after{content:" ▲"}.ctable th.on.desc::after{content:" ▼"}
.ctable td{padding:9px 10px;border-top:1px solid var(--line);vertical-align:middle;font-size:13.5px}
.ctable tr:hover td{background:var(--panel2)}
.ctable tr.no td{opacity:.55}
.ctable .nm{font-weight:600;color:var(--text);overflow-wrap:anywhere}
.ctable .why{font-size:12px;color:var(--bad);margin-top:2px}
.ctable td.num{text-align:right;white-space:nowrap}
.pager{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;margin:18px 0}
.pager button{min-width:36px;height:36px;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:8px;cursor:pointer;font:600 13px var(--font)}
.pager button.on{background:var(--accent);border-color:var(--accent);color:#fff}
.pager button[disabled]{opacity:.4;cursor:default}
@media(max-width:700px){.ctable .hide-s{display:none}}

/* accessibility helpers */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* homepage */
.hero2{background:linear-gradient(110deg,var(--band1),var(--band2));color:#fff;padding:34px 0 30px}
.hero2 .eyebrow{margin:0 0 6px;text-transform:uppercase;letter-spacing:.8px;font-size:12px;font-weight:700;color:#b8c4ff}
.hero2 h1{font-size:38px;max-width:820px;margin:0 0 10px;color:#fff}
.hero2 .lead{font-size:17px;max-width:680px;color:#dbe3ff;margin:0 0 16px}
.trust{display:flex;flex-wrap:wrap;gap:8px 22px;list-style:none;margin:0;padding:0;font-size:13.5px;color:#cfd8ff}
.trust li::before{content:"✓ ";color:#7ee0a6;font-weight:700}
.trust strong{color:#fff}
.hero2 + main{padding-top:22px}
.tool{margin-bottom:10px}
.in-chooser .home-extra,.in-chooser .hero2{display:none}
.in-chooser .tool + .home-extra{display:none}
.steps{list-style:none;counter-reset:s;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;padding:0;margin:0}
.steps li{counter-increment:s;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px 16px 16px 58px;position:relative;box-shadow:var(--shadow)}
.steps li::before{content:counter(s);position:absolute;left:16px;top:16px;width:30px;height:30px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800}
.steps h3,.steps p{margin:0}
.steps h3{font-size:16px;margin-bottom:4px}
.steps p{color:var(--muted)}
.catgrid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.catgrid .cat h3{margin:0 0 2px;font-size:16px}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(235px,1fr));gap:12px}
.pcard{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:12px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:2px}
.pcard h3{font-size:14px;line-height:1.35;margin:6px 0 0}
.pcard h3 a{color:var(--text)}
.pcard p{margin:2px 0;font-size:13px}
.pcard .btn{align-self:flex-start;margin-top:6px}
.pimg2{display:grid;place-items:center;height:110px;background:#fff;border-radius:8px;border:1px solid var(--line)}
.pimg2 img{max-height:96px;width:auto;object-fit:contain}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px;margin:8px 0}
.faq summary{cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary h3{display:inline;font-size:15.5px;margin:0}
.faq summary::after{content:"+";float:right;font-weight:800;color:var(--accent)}
.faq details[open] summary::after{content:"−"}
.faq details p{margin:10px 0 2px;color:var(--muted)}
.home-extra section{margin-top:34px}
.home-extra section > h2:first-child,section.home-extra > h2:first-child{margin-top:0}
section.home-extra{margin-top:34px}
@media(max-width:700px){.hero2 h1{font-size:28px}}

/* photos */
.thumb img{width:100%;height:100%;object-fit:contain;border-radius:8px;background:#fff;display:block}
.parts .thumb.has{background:#fff;padding:2px}
.pimg{background:#fff;border-radius:10px;border:1px solid var(--line);margin-bottom:14px;display:grid;place-items:center;overflow:hidden}
.pimg img{width:100%;height:auto;max-height:320px;object-fit:contain;display:block}
img.lt{width:40px;height:40px;object-fit:contain;background:#fff;border-radius:6px;border:1px solid var(--line);vertical-align:middle;margin-right:10px}
.ctable .nmcell{display:flex;gap:10px;align-items:center}
.ctable .nmcell .cth{width:44px;height:44px;flex:none;border-radius:8px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;overflow:hidden;font-size:10px;font-weight:800;color:var(--muted)}
.ctable .nmcell .cth img{width:100%;height:100%;object-fit:contain}

/* modals */
.modal{position:fixed;inset:0;z-index:60;background:rgba(2,6,16,.65);display:none;padding:18px;overflow:auto}
.modal.open{display:block}
.modal .m{max-width:760px;margin:30px auto;background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.modal .mh{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line)}
.modal .mh h2{margin:0;flex:1;font-size:18px}
.modal .mb{padding:14px 16px}
textarea.code{width:100%;min-height:200px;background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:10px;font:12.5px/1.5 ui-monospace,Consolas,monospace}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#0b1220;color:#fff;padding:10px 18px;border-radius:10px;z-index:99;font-weight:600;box-shadow:0 8px 24px rgba(0,0,0,.35)}
.saved{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}
.saved .i{flex:1;min-width:0}
.foot{border-top:1px solid var(--line);color:var(--muted);font-size:13px;padding:22px 0;margin-top:40px}
.faq details{border-bottom:1px solid var(--line);padding:10px 0}.faq summary{cursor:pointer;font-weight:600}
.related{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.related a{display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:10px;color:var(--text);font-size:14px;box-shadow:var(--shadow)}
.related a:hover{border-color:var(--accent);text-decoration:none}
.related b{display:block;margin-top:4px}
.builds{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.build{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.build h3{margin:0 0 6px;font-size:17px}
.build ul{padding-left:16px;margin:8px 0 12px;color:var(--muted);font-size:13.5px}

.modal .mh .mt{margin:0;flex:1;font-size:18px;font-weight:700}
.ch-top .ch-h{font-size:24px;font-weight:800;margin:0;flex:1;letter-spacing:-.3px}

/* header: shop links on wide screens, Shop menu on narrow ones */
nav.main>a.dsk{display:none}
nav.main>.dd.mob{display:block}
@media(min-width:1180px){nav.main>a.dsk{display:inline-block}nav.main>.dd.mob{display:none}}
.dd .menu{z-index:40}