/* Aurora Filtech V2 — technical index theme */
:root{
  --paper:#F6F7F4; --panel:#FFFFFF; --ink:#121B24; --mute:#5A6470;
  --line:#DCE0D7; --rule:#121B24;
  --accent:#1E4FD8; --accent-deep:#123AA0; --accent-wash:#EAF0FE;
  --sans:"Segoe UI",-apple-system,BlinkMacSystemFont,Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:Consolas,"Cascadia Mono","SF Mono",Menlo,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);font-size:16px;line-height:1.65}
a{color:var(--accent-deep);text-decoration:none}
a:hover{text-decoration:underline}
img{display:block;max-width:100%;height:auto}
.wrap{max-width:1240px;margin:0 auto;padding:0 28px}
.label{font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--accent-deep)}
.label.dim{color:var(--mute)}
.mono{font-family:var(--mono);font-size:.85em}

/* top utility strip + header */
.util{background:var(--ink);color:#C9D2DB;font-size:12.5px}
.util .wrap{display:flex;justify-content:space-between;gap:16px;padding-top:7px;padding-bottom:7px}
.util a{color:#E8EDF2}
.masthead{background:var(--panel);border-bottom:2px solid var(--rule)}
.mast{display:flex;align-items:stretch;gap:0}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.28rem;letter-spacing:-.01em;color:var(--ink)}
.brand svg{flex:none}
.nav2{margin-left:auto;display:flex;align-items:stretch}
.nav2>a,.nav2>.dd>a{display:flex;align-items:center;padding:0 18px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink);border-left:1px solid var(--line)}
.nav2>a:hover,.nav2>.dd>a:hover{background:var(--accent-wash);text-decoration:none}
.nav2 .quote{background:var(--accent);color:#fff}
.nav2 .quote:hover{background:var(--accent-deep)}
.dd{position:relative;display:flex}
.dd>.panel{display:none;position:absolute;top:100%;left:0;min-width:280px;background:var(--panel);border:2px solid var(--rule);border-top:none;z-index:60}
.dd:hover>.panel{display:block}
.dd .panel a{display:block;padding:10px 18px;border-bottom:1px solid var(--line);font-size:13.5px;font-weight:600}
.dd .panel a:hover{background:var(--accent-wash);text-decoration:none}
.burger{display:none;margin-left:auto;align-self:center;background:none;border:2px solid var(--rule);padding:8px 14px;font:inherit;font-weight:700;cursor:pointer}

/* hero: full-bleed photo, light panel overlapping */
.hero2{position:relative;background:var(--ink)}
.hero2 .photo{position:relative;height:min(72vh,640px);min-height:420px}
.hero2 .photo img{width:100%;height:100%;object-fit:cover}
.hero2 .photo::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(246,247,244,.96) 0%,rgba(246,247,244,.82) 34%,rgba(246,247,244,0) 66%)}
.hero2 .plate{position:absolute;left:0;top:0;bottom:0;display:flex;flex-direction:column;justify-content:center;max-width:640px;padding:0 28px;pointer-events:none}
.hero2 .plate>*{pointer-events:auto}
.hero2 h1{font-size:clamp(2.3rem,5vw,3.9rem);font-weight:800;letter-spacing:-.025em;line-height:1.04;margin:16px 0 18px}
.hero2 h1 span{color:var(--accent-deep)}
.hero2 p.lede{color:var(--mute);font-size:1.08rem;max-width:32em}
.hero2 .cta{margin-top:30px;display:flex;gap:12px}
.btn{display:inline-block;padding:14px 30px;font-weight:700;font-size:14px;letter-spacing:.06em}
.btn-a{background:var(--accent);color:#fff}
.btn-a:hover{background:var(--accent-deep);text-decoration:none}
.btn-o{border:2px solid var(--rule);color:var(--ink)}
.btn-o:hover{background:var(--ink);color:#fff;text-decoration:none}
.statstrip{border-top:2px solid var(--rule);background:var(--panel)}
.statstrip .wrap{display:grid;grid-template-columns:repeat(3,1fr)}
.statstrip .cell{padding:22px 8px;text-align:center;border-left:1px solid var(--line)}
.statstrip .cell:first-child{border-left:none}
.statstrip b{display:block;font-size:2rem;font-weight:800;letter-spacing:-.02em;color:var(--accent-deep)}
.statstrip span{font-size:11.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--mute)}

/* generic section */
.sec{padding:84px 0}
.sec-head2{display:flex;align-items:baseline;justify-content:space-between;gap:20px;border-bottom:2px solid var(--rule);padding-bottom:14px}
.sec-head2 h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;letter-spacing:-.02em}
.sec-head2 .count{font-family:var(--mono);color:var(--mute);font-size:.85rem}

/* why: numbered pillars on ruled band */
.why2{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.why2 .top{display:grid;grid-template-columns:1fr 1fr;gap:56px;padding:64px 0 8px}
.why2 .top h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800;letter-spacing:-.02em;margin:10px 0 16px}
.why2 .top p{color:var(--mute)}
.why2 .mono-shot{border:2px solid var(--rule);background:var(--paper);padding:14px}
.why2 .mono-shot img{width:100%;height:auto;object-fit:cover}
.why2 .mono-shot figcaption{font-size:12.5px;color:var(--mute);padding-top:10px}
.pillars{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--rule);margin-top:48px}
.pillar{padding:26px 22px 30px;border-left:1px solid var(--line)}
.pillar:first-child{border-left:none;padding-left:0}
.pillar i{font-style:normal;font-family:var(--mono);font-size:.8rem;color:var(--accent-deep)}
.pillar b{display:block;font-size:1.05rem;font-weight:800;margin:8px 0 6px}
.pillar span{font-size:.9rem;color:var(--mute)}

/* product index rows (replaces card grid) */
.index{border-top:none}
.row-item{display:grid;grid-template-columns:64px 190px 1fr 220px;gap:26px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);position:relative}
.row-item .no{font-family:var(--mono);font-size:1.05rem;color:var(--mute)}
.row-item .thumb{border:1px solid var(--line);background:var(--panel);overflow:hidden;aspect-ratio:671/386}
.row-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.row-item:hover .thumb img{transform:scale(1.04)}
.row-item h3{font-size:1.22rem;font-weight:800;letter-spacing:-.01em;margin:0 0 6px}
.row-item h3 a{color:var(--ink)}
.row-item h3 a::after{content:" ↗";color:var(--accent)}
.row-item .desc{font-size:.92rem;color:var(--mute);max-width:52em}
.row-item figcaption{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.row-item .tags{display:flex;flex-direction:column;gap:6px;align-items:flex-end}
.tag{font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-deep);background:var(--accent-wash);padding:5px 12px}
.index-foot{padding:20px 0 0;color:var(--mute);font-size:.95rem}

/* contact: dark dossier panel */
.contact2{background:var(--ink);color:#D7DEE5}
.contact2 .grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;padding:76px 0}
.contact2 h2{color:#fff;font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;letter-spacing:-.02em;margin:12px 0 14px}
.contact2 p{color:#9FACB8}
.contact2 .meta{margin-top:28px;display:grid;gap:10px;font-size:.92rem;color:#C9D2DB}
.contact2 .meta b{color:#fff}
.contact2 label{color:#8B98A5}
.contact2 input,.contact2 textarea{background:#1B2632;border:1px solid #2C3947;color:#E8EDF2;border-radius:0}
.contact2 input:focus,.contact2 textarea:focus{outline:2px solid var(--accent);border-color:var(--accent)}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
label{display:block;font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;margin-bottom:6px}

/* product page: dossier layout */
.p-head{background:var(--panel);border-bottom:2px solid var(--rule);padding:54px 0 46px}
.crumbs{font-size:12.5px;color:var(--mute);margin-bottom:18px;font-family:var(--mono)}
.crumbs a{color:var(--mute)}
.p-head h1{font-size:clamp(1.9rem,4vw,3rem);font-weight:800;letter-spacing:-.025em;line-height:1.05;max-width:18em}
.p-head .lede{margin-top:16px;color:var(--mute);max-width:46em;font-size:1.05rem}
.p-body{display:grid;grid-template-columns:280px 1fr;gap:56px;padding:56px 0}
.rail{position:sticky;top:24px;align-self:start}
.rail .box{border:1px solid var(--line);background:var(--panel);padding:20px 22px;margin-bottom:18px}
.rail .box h4{font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-deep);margin-bottom:10px}
.rail ul{list-style:none}
.rail li{font-family:var(--mono);font-size:.78rem;color:var(--mute);padding:5px 0;border-bottom:1px dashed var(--line)}
.rail li:last-child{border-bottom:none}
.rail .box.links a{display:block;padding:6px 0;font-weight:700;font-size:.9rem;color:var(--ink)}
.rail .box.links a:hover{color:var(--accent-deep)}
.main h2{font-size:1.45rem;font-weight:800;letter-spacing:-.015em;margin:40px 0 14px;padding-top:18px;border-top:2px solid var(--rule)}
.main h2:first-child{margin-top:0;padding-top:0;border-top:none}
.main p{color:var(--mute);margin-bottom:14px;max-width:56em}
.bannershot{margin:8px 0 10px}
.bannershot figure{border:2px solid var(--rule);background:var(--panel)}
.bannershot img{width:100%;height:auto}
.bannershot figcaption{font-size:12.5px;color:var(--mute);padding:10px 14px;border-top:1px solid var(--line)}
.gallery2{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin:26px 0}
.gallery2 figure{border:1px solid var(--line);background:var(--panel)}
.gallery2 img{width:100%;height:auto}
.gallery2 figcaption{font-size:12px;color:var(--mute);padding:8px 12px;border-top:1px solid var(--line)}
.spectable{width:100%;border-collapse:collapse;margin:18px 0;background:var(--panel)}
.spectable caption{text-align:left;font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-deep);padding-bottom:8px}
.spectable td{border:1px solid var(--line);padding:10px 14px;font-size:.9rem}
.spectable td:first-child{width:38%;font-weight:700}
.spectable td:last-child{font-family:var(--mono);color:var(--mute);font-size:.82rem}
.apps2{list-style:none;margin:16px 0}
.apps2 li{display:flex;gap:14px;padding:12px 0;border-bottom:1px solid var(--line);font-size:.95rem;color:var(--mute)}
.apps2 li::before{content:"—";color:var(--accent);font-weight:800}
.faq2 details{border:1px solid var(--line);background:var(--panel);margin-bottom:-1px}
.faq2 summary{cursor:pointer;padding:16px 20px;font-weight:800;font-size:1rem;list-style:none;display:flex;justify-content:space-between;gap:14px}
.faq2 summary::-webkit-details-marker{display:none}
.faq2 summary::after{content:"+";font-family:var(--mono);color:var(--accent-deep)}
.faq2 details[open] summary::after{content:"–"}
.faq2 details p{padding:0 20px 18px;color:var(--mute)}
.cta2{margin-top:44px;background:var(--accent);color:#fff;padding:34px 38px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta2 h2{color:#fff;font-size:1.4rem;font-weight:800;margin:0}
.cta2 p{color:rgba(255,255,255,.85);margin:4px 0 0}
.cta2 .btn{background:#fff;color:var(--accent-deep)}
.ph-banner-placeholder{border:2px dashed var(--accent);background:var(--accent-wash);color:var(--accent-deep);display:flex;align-items:center;justify-content:center;min-height:170px;font-size:.9rem;font-weight:600;margin:8px 0 10px}

/* footer */
.foot{background:var(--panel);border-top:2px solid var(--rule)}
.foot .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:56px 0 36px}
.foot h3{font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-deep);margin-bottom:14px}
.foot a{display:block;color:var(--mute);font-size:.9rem;padding:3px 0}
.foot a:hover{color:var(--accent-deep)}
.foot p{color:var(--mute);font-size:.88rem}
.foot .base{border-top:1px solid var(--line);padding:18px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--mute)}

@media(max-width:1000px){
  .nav2{display:none;position:absolute;top:100%;left:0;right:0;background:var(--panel);flex-direction:column;border-bottom:2px solid var(--rule)}
  .nav2.open{display:flex}
  .nav2>a,.nav2>.dd>a{border-left:none;border-top:1px solid var(--line);padding:14px 20px}
  .burger{display:block}
  .hero2 .plate{position:static;max-width:none;padding:34px 28px;background:var(--paper)}
  .hero2 .photo{height:auto}
  .hero2 .photo img{height:300px}
  .hero2 .photo::after{display:none}
  .why2 .top,.contact2 .grid,.p-body{grid-template-columns:1fr}
  .pillars{grid-template-columns:1fr 1fr}
  .row-item{grid-template-columns:44px 1fr;grid-template-rows:auto auto}
  .row-item .tags{grid-column:2;flex-direction:row;flex-wrap:wrap;justify-content:flex-start}
  .foot .grid{grid-template-columns:1fr 1fr}
  .rail{position:static}
}
@media(max-width:640px){.pillars{grid-template-columns:1fr}.foot .grid{grid-template-columns:1fr}form .row{grid-template-columns:1fr}.statstrip .wrap{grid-template-columns:1fr}.statstrip .cell{border-left:none;border-top:1px solid var(--line)}}