/* AirAqua shared styles: footer, search, related products, quote form, new pages */
/* ---- icon style: one stroke weight everywhere ---- */
.ico svg,.fab svg,.bi .dl,.tt svg,.ddb svg,.sbtn svg,.rc .ar,.fx svg{stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

/* ---- search button + overlay ---- */
.sbtn{width:36px;height:36px;border-radius:50%;border:1px solid var(--nb);background:transparent;color:var(--nc);cursor:pointer;display:grid;place-items:center;padding:0;flex:none;transition:border-color .3s,color .3s}
.sbtn svg{width:16px;height:16px;fill:none;stroke:currentColor}
.sbtn:hover{border-color:var(--nac);color:var(--nac)}
@media(max-width:520px){.sbtn{width:32px;height:32px}.sbtn svg{width:15px;height:15px}.links{gap:8px!important}.tt{width:54px;height:30px}.tt .th{width:22px;height:22px}:root[data-theme="dark"] .tt .th{transform:translateX(24px)}.tt svg{top:6px;width:15px;height:15px}.tt .su{left:7px}.tt .mo{right:7px}}
.sov{position:fixed;inset:0;z-index:70;display:none;background:rgba(4,8,7,.66);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);padding:max(14px,env(safe-area-inset-top,0px)) 14px 14px}
.sov.on{display:block}
.sbox{max-width:700px;margin:7vh auto 0;background:var(--bg);color:var(--tx);border:1px solid var(--line);border-radius:18px;box-shadow:0 30px 80px rgba(0,0,0,.45);display:flex;flex-direction:column;max-height:calc(100svh - 12vh);overflow:hidden}
.sin{display:flex;align-items:center;gap:12px;padding:0 14px 0 20px;border-bottom:1px solid var(--line)}
.sin svg{width:18px;height:18px;fill:none;stroke:var(--mu);flex:none}
.sin input{flex:1;min-width:0;border:0;background:none;color:var(--tx);font:300 18px Inter,system-ui,sans-serif;padding:20px 0;outline:none;border-radius:0}
.sin input::placeholder{color:var(--mu)}
.sx{border:1px solid var(--line);background:none;color:var(--mu);border-radius:8px;font:400 12px Inter,system-ui,sans-serif;padding:6px 10px;cursor:pointer;letter-spacing:.06em}
.sx:hover{color:var(--tx);border-color:var(--accent)}
.sres{overflow:auto;padding:8px;overscroll-behavior:contain}
.sgh{font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--mu);padding:12px 12px 6px}
.sit{display:grid;grid-template-columns:1fr auto;gap:2px 14px;padding:11px 12px;border-radius:12px;color:var(--tx);text-decoration:none}
.sit:hover,.sit[aria-selected="true"]{background:var(--hov)}
.sit b{font-weight:400;font-size:15.5px;line-height:1.35}
.sit b mark{background:none;color:var(--accent);font-weight:500}
.sit small{font-size:13.5px;color:var(--mu);grid-column:1;line-height:1.45}
.sit em{font-style:normal;font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);grid-column:2;grid-row:1;align-self:center;white-space:nowrap}
.sempty{padding:26px 16px 30px;color:var(--mu);font-size:15px;line-height:1.6}
.sempty a{color:var(--accent)}
.sfoot{border-top:1px solid var(--line);padding:10px 18px;font-size:12px;color:var(--mu);display:flex;gap:18px;flex-wrap:wrap}
.sfoot kbd{font:500 11px Inter,system-ui,sans-serif;border:1px solid var(--line);border-radius:5px;padding:1px 6px;margin-right:4px}
@media(max-width:600px){.sbox{margin-top:2vh;max-height:calc(100svh - 28px)}.sfoot{display:none}.sit{grid-template-columns:1fr}.sit em{grid-column:1;grid-row:auto;justify-self:start;order:-1}}

/* ---- footer ---- */
footer.fx{padding:72px 0 30px;border-top:1px solid var(--line);color:var(--mu);font-size:14.5px;display:block}
.fx .fxg{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px 40px}
.fx img{height:30px;opacity:1}
.fx .lg-d{display:none}
:root:not([data-theme="dark"]) .fx .lg-l{display:none}
:root:not([data-theme="dark"]) .fx .lg-d{display:block}
.fx p{margin:18px 0 0;max-width:34ch;line-height:1.6}
.fx h2.fh{margin:0 0 16px;max-width:none;font-weight:500;font-size:12px;line-height:1.4;letter-spacing:.18em;text-transform:uppercase;color:var(--tx)}
.fx ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.fx a{color:var(--mu);transition:color .25s}
.fx a:hover{color:var(--accent)}
.fx .fph{display:inline-flex;align-items:center;gap:10px;margin-top:18px;color:var(--tx)}
.fx .fph svg{width:18px;height:18px;fill:none;stroke:var(--accent)}
.fx .fbt{margin-top:56px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:10px 24px;flex-wrap:wrap;font-size:13px}
@media(max-width:900px){.fx .fxg{grid-template-columns:1fr 1fr}.fx .fxg>div:first-child{grid-column:1/-1}}
@media(max-width:480px){.fx .fxg{grid-template-columns:1fr 1fr;gap:36px 24px}}

/* ---- related products ---- */
.rel2{padding:96px 0}
.rel2 h2{font-size:clamp(26px,3.2vw,38px);max-width:none}
.rgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px}
.rc{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:22px 24px;transition:border-color .3s,background .3s}
.rc:hover{border-color:var(--accent);background:var(--hov)}
.rc .ico{width:48px;height:48px}
.rc .ico svg{width:22px;height:22px}
.rc b{display:block;font-weight:400;font-size:18px;line-height:1.3}
.rc small{display:block;color:var(--mu);font-size:14px;line-height:1.5;margin-top:4px}
.rc .ar{width:20px;height:20px;fill:none;stroke:var(--accent);transition:transform .3s}
.rc:hover .ar{transform:translateX(4px)}
@media(max-width:900px){.rgrid{grid-template-columns:1fr}}

/* ---- quote form (same on every product page) ---- */
.qgrid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}
.cta2 form{gap:24px}.cta2 label{color:#9bb3ae}
.cta2 input,.cta2 textarea,.cta2 select{color:#eaf2f0;border-bottom-color:rgba(255,255,255,.25)}
.cta2 input::placeholder,.cta2 textarea::placeholder{color:#6f8a84}
.cta2 input:focus,.cta2 textarea:focus{border-color:var(--mint)}.cta2 .note{color:#9bb3ae}
.cta2 h2{max-width:16ch}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 0}
.chips span{border:1px solid var(--line);border-radius:999px;padding:7px 16px;font-size:14px;color:var(--tx)}
.cta2 .chips span{border-color:rgba(255,255,255,.2);color:#eaf2f0}
.fok{display:none;border:1px solid var(--mint);border-radius:12px;padding:16px 18px;color:#eaf2f0;font-size:15px}
@media(max-width:900px){.qgrid{grid-template-columns:1fr;gap:44px}}

/* ---- shared page furniture for Brochures / Industries / Guides ---- */
.pg-hero{min-height:56svh}
.pg-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(110% 90% at 88% 8%,rgba(136,219,199,.22),transparent 58%),radial-gradient(80% 70% at 8% 100%,rgba(136,219,199,.08),transparent 60%),linear-gradient(180deg,#0b1c1a,#0a0f0e);z-index:0}
.pg-hero:after{display:none}
.toolbar{display:flex;flex-wrap:wrap;gap:14px 20px;align-items:center;margin-top:40px}
.sfield{position:relative;flex:1 1 280px;max-width:440px}
.sfield svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:18px;height:18px;fill:none;stroke:var(--mu);pointer-events:none}
.sfield input{width:100%;padding:13px 16px 13px 46px;border:1px solid var(--line);border-radius:999px;background:transparent;font:300 16px Inter,system-ui,sans-serif;color:var(--tx)}
.sfield input:focus{border-color:var(--accent);outline:none}
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill{border:1px solid var(--line);background:none;color:var(--mu);border-radius:999px;padding:9px 18px;font:400 14px Inter,system-ui,sans-serif;cursor:pointer;transition:all .25s}
.pill:hover{color:var(--tx);border-color:var(--accent)}
.pill[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#06130f}
:root:not([data-theme="dark"]) .pill[aria-pressed="true"]{color:#fff}
.bgrp{margin-top:56px}
.bgrp h3{font-weight:400;font-size:22px;letter-spacing:-.01em;display:flex;gap:14px;align-items:baseline;flex-wrap:wrap}
.bgrp h3 small{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:500}
.bgrp .bro{margin-top:8px;border-top:1px solid var(--line)}
.nores{display:none;margin-top:48px;color:var(--mu)}
.igrid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:56px}
.ic2{border:1px solid var(--line);border-radius:14px;padding:30px 30px 26px;display:flex;flex-direction:column;gap:10px;scroll-margin-top:96px}
.ic2 .ico{width:48px;height:48px;margin-bottom:6px}
.ic2 .ico svg{width:22px;height:22px}
.ic2 h3{font-weight:400;font-size:24px;letter-spacing:-.01em;line-height:1.25}
.ic2 p{color:var(--mu);font-size:15.5px}
.ic2 ul{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:8px;font-size:14.5px}
.ic2 li{display:grid;grid-template-columns:auto 1fr;gap:4px 12px}
.ic2 li a{color:var(--accent);white-space:nowrap}
.ic2 li a:hover{text-decoration:underline}
.ic2 li span{color:var(--mu)}
@media(max-width:820px){.igrid{grid-template-columns:1fr}.ic2 li{grid-template-columns:1fr}}
.gtabs{display:grid;grid-template-columns:240px 1fr;gap:64px;margin-top:20px;align-items:start}
.gnav{position:sticky;top:96px;display:grid;gap:4px;font-size:15px}
.gnav a{padding:10px 14px;border-radius:10px;color:var(--mu);border-left:2px solid transparent}
.gnav a:hover{color:var(--tx);background:var(--hov)}
.gnav a.on{color:var(--accent);border-left-color:var(--accent);background:var(--hov)}
.gsec{padding:48px 0;border-top:1px solid var(--line);scroll-margin-top:90px}
.gsec:first-child{border-top:0;padding-top:0}
.gsec>h2{font-size:clamp(28px,3.4vw,40px);max-width:none}
.gsec>p.lead{margin-top:14px}
.ctbl{width:100%;border-collapse:collapse;margin-top:30px;font-size:15px}
.ctbl th,.ctbl td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.ctbl th{font-weight:500;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--mu)}
.ctbl td:first-child{color:var(--tx);font-weight:400;width:36%}
.ctbl td{color:var(--mu)}
.ctbl a{color:var(--accent)}
.tw{overflow-x:auto;margin-inline:-4px;padding-inline:4px}
.ctbl{min-width:560px}
.faq{margin-top:26px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;align-items:center;padding:20px 4px;font-size:18px;font-weight:400;line-height:1.4}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"";flex:none;width:11px;height:11px;border-right:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent);transform:rotate(45deg) translateY(-3px);transition:transform .3s}
.faq details[open] summary:after{transform:rotate(-135deg) translate(-3px,-1px)}
.faq summary:hover{color:var(--accent)}
.faq .an{padding:0 4px 24px;color:var(--mu);max-width:68ch;line-height:1.7;font-size:16px}
.faq .an a{color:var(--accent)}
.faq .an p+p{margin-top:12px}
.tipbox{margin-top:30px;border:1px solid var(--line);border-radius:14px;padding:22px 26px;background:var(--hov);display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap;justify-content:space-between}
.tipbox p{margin:0;color:var(--mu);max-width:56ch;font-size:15.5px}
.tipbox b{color:var(--tx);font-weight:500;display:block;margin-bottom:4px}
@media(max-width:900px){.gtabs{grid-template-columns:1fr;gap:20px}.gnav{position:sticky;top:76px;z-index:6;display:flex;overflow-x:auto;gap:6px;padding:10px 0;background:var(--bg);border-bottom:1px solid var(--line);scrollbar-width:none;margin-inline:-28px;padding-inline:28px}.gnav::-webkit-scrollbar{display:none}.gnav a{white-space:nowrap;border-left:0;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:14px}.gnav a.on{border-color:var(--accent)}}
.resx{padding:0 0 110px}
.resx .rgrid{margin-top:0}
.resx .rh{display:flex;justify-content:space-between;align-items:baseline;gap:20px;flex-wrap:wrap;margin-bottom:26px}
.resx .rh span{font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:500}
@media(prefers-reduced-motion:reduce){.rc,.rc .ar,.sit{transition:none}}
footer.fx .wrap{display:block}
.gtabs>*{min-width:0}
@media(max-width:400px){nav img{height:26px!important}nav .wrap{padding-left:18px;padding-right:18px}}
.sit mark{background:none;color:var(--accent);font-weight:500}
.sin input::-webkit-search-cancel-button,.sin input::-webkit-search-decoration{-webkit-appearance:none;display:none}

/* ================= header v2: phone + quote, grouped Products menu, mobile menu, mobile bar ================= */
nav .wrap{position:relative;z-index:1}
.links{gap:26px}
.links a.tel{display:inline-flex;align-items:center;gap:9px;color:var(--nc);font-weight:400;white-space:nowrap;transition:color .25s}
.links a.tel:hover{color:var(--nac)}
.tel svg{width:17px;height:17px;fill:none;stroke:currentColor;flex:none}
.links .btn.p{background:var(--mint);color:#06130f;border-color:var(--mint);white-space:nowrap}
.links .btn.p:hover{background:#a6e8d8;color:#06130f;border-color:#a6e8d8}
.mbtn,.mnav,.mbar{display:none}
/* Products menu */
.ddm{left:-20px;transform:translateY(8px)}
.dd:hover .ddm,.dd.open .ddm,.dd:focus-within .ddm{transform:none}
.ddm>.mm{width:min(760px,calc(100vw - 300px));padding:0;display:grid;grid-template-columns:1.75fr 1fr;overflow:hidden}
.mm .c1{padding:14px;display:grid;gap:2px;align-content:start}
.mm .gh,.mnav .gh{margin:0;font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--mu);padding:12px 12px 6px}
.mm .gh:first-child{padding-top:6px}
.links .ddm a.mi,.mnav a.mi{display:flex;align-items:flex-start;gap:14px;padding:10px 12px;border-radius:12px;color:var(--tx);transition:background .25s}
.links .ddm a.mi:hover,.mnav a.mi:hover{background:var(--hov)}
.mi .ico{width:38px;height:38px;flex:none}
.mi .ico svg{width:19px;height:19px}
.mi b{display:block;font-weight:400;font-size:15px;line-height:1.3}
.mi small{display:block;font-size:13px;color:var(--mu);line-height:1.45;margin:2px 0 0;white-space:normal;border:0;padding:0;border-radius:0;letter-spacing:0;text-transform:none}
.mm .c2{background:var(--bg2);border-left:1px solid var(--line);padding:20px 20px 22px;display:flex;flex-direction:column;gap:2px}
.mm .c2 .gh{padding:0 0 8px}
.links .ddm .c2 a.l{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-radius:0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--tx)}
.links .ddm .c2 a.l:hover{background:none;color:var(--accent)}
.links .ddm .c2 a.l em{font-style:normal;color:var(--mu);transition:transform .3s var(--ease),color .3s}
.links .ddm .c2 a.l:hover em{transform:translateX(4px);color:var(--accent)}
.links .ddm .c2 .btn.p{margin-top:auto;text-align:center;color:#06130f;background:var(--mint);border-color:var(--mint)}
.links .ddm .c2 .btn.p:hover{background:#a6e8d8;color:#06130f}
.mm .c2 a.l.all{border-bottom:0}
.c2 .btn{margin-top:18px!important}
/* header sizes */
@media(max-width:1140px){.links{gap:18px}.links a.tel{width:36px;height:36px;border:1px solid var(--nb);border-radius:50%;justify-content:center;padding:0;gap:0}.links a.tel:hover{border-color:var(--nac)}.tel .tx{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}}
@media(max-width:1000px){.links{gap:14px}.links .btn.p{padding:10px 16px}.ddm>.mm{width:min(660px,calc(100vw - 220px))}}
/* phones and small tablets: hamburger menu + bottom bar */
@media(max-width:940px){
 .links>a:not(.mbtn),.links .dd,.links .qb{display:none!important}
 .links{gap:12px}
 .mbtn{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;border:1px solid var(--nb);background:transparent;color:var(--nc);cursor:pointer;padding:0;flex:none;transition:border-color .3s}
 .mbtn:hover{border-color:var(--nac)}
 .mbtn span,.mbtn span:before,.mbtn span:after{display:block;width:16px;height:1.5px;background:currentColor;border-radius:2px;transition:transform .3s var(--ease),background .2s}
 .mbtn span{position:relative}
 .mbtn span:before,.mbtn span:after{content:"";position:absolute;left:0}
 .mbtn span:before{top:-5px}.mbtn span:after{top:5px}
 .mbtn[aria-expanded="true"] span{background:transparent}
 .mbtn[aria-expanded="true"] span:before{transform:translateY(5px) rotate(45deg)}
 .mbtn[aria-expanded="true"] span:after{transform:translateY(-5px) rotate(-45deg)}
 nav.mopen{--nc:var(--tx);--nl:var(--mu);--nb:var(--line);--nac:var(--accent);background:var(--bg);border-color:var(--line)}
 :root:not([data-theme="dark"]) nav.mopen .lg-l{display:none}
 :root:not([data-theme="dark"]) nav.mopen .lg-d{display:block}
 .mnav{position:fixed;inset:0;z-index:0;background:var(--bg);color:var(--tx);overflow-y:auto;overscroll-behavior:contain;padding:calc(84px + env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) calc(32px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px))}
 .mnav.on{display:block}
 .mnav .gh{padding:18px 0 8px}
 .mnav .gh:first-child{padding-top:0}
 .mnav a.mi{padding:12px 4px;border-radius:12px;min-height:56px}
 .mnav a.ml{display:flex;justify-content:space-between;align-items:center;min-height:50px;padding:12px 4px;border-bottom:1px solid var(--line);font-size:16px;color:var(--tx)}
 .mnav a.ml em{font-style:normal;color:var(--mu)}
 .mnav .mact{display:grid;gap:12px;margin-top:26px}
 .mnav .mact .btn{display:flex;justify-content:center;align-items:center;gap:10px;min-height:50px;padding:12px 20px}
 .mnav .mact .btn svg{width:18px;height:18px;fill:none;stroke:currentColor}
 .mnav .mact .btn.p{color:#06130f}
 body{padding-bottom:calc(76px + env(safe-area-inset-bottom,0px))}
 .mbar{display:grid;grid-template-columns:1fr 1.5fr;gap:10px;position:fixed;left:0;right:0;bottom:0;z-index:40;padding:10px max(12px,env(safe-area-inset-right,0px)) calc(10px + env(safe-area-inset-bottom,0px)) max(12px,env(safe-area-inset-left,0px));background:var(--navbg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-top:1px solid var(--line);transition:transform .35s var(--ease),visibility 0s}
 .mbar a{display:flex;align-items:center;justify-content:center;gap:8px;min-height:48px;border-radius:99px;font-size:15px;font-weight:500;border:1px solid var(--line);color:var(--tx);transition:border-color .25s,color .25s}
 .mbar a svg{width:18px;height:18px;fill:none;stroke:currentColor}
 .mbar a:hover{border-color:var(--accent);color:var(--accent)}
 .mbar a.p{background:var(--mint);color:#06130f;border-color:var(--mint)}
 .mbar a.p:hover{background:#a6e8d8;color:#06130f}
 html.mb-off .mbar{transform:translateY(115%);visibility:hidden;transition:transform .35s var(--ease),visibility 0s linear .35s}
 .fab{bottom:calc(88px + env(safe-area-inset-bottom,0px))!important}
 html.mb-off .fab{bottom:calc(20px + env(safe-area-inset-bottom,0px))!important}
 html.tray-on body{padding-bottom:calc(76px + env(safe-area-inset-bottom,0px))}
}
@media(max-width:400px){.links{gap:8px}}
@media(prefers-reduced-motion:reduce){.mbar,.mbtn span,.mbtn span:before,.mbtn span:after{transition:none!important}}

/* ================= readability: regular weight for body text, labels and captions (large headings stay light) ================= */
body{font-weight:400}
input,select,textarea,.sin input,.sfield input,.sb input{font-weight:400}
.spec th,.spec td,.hmt small{font-weight:400}

/* ================= homepage: "What do you need?" tiles ================= */
.needs{padding:110px 0 30px}
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:52px}
.tl{position:relative;display:flex;flex-direction:column;gap:10px;padding:26px;border:1px solid var(--line);border-radius:16px;background:var(--bg2);min-height:220px;transition:opacity 1s var(--ease),transform 1s var(--ease),border-color .3s,background .3s;transition-delay:var(--d,0s),var(--d,0s),0s,0s}
.tl:hover,.tl:focus-within{border-color:var(--accent);background:var(--hov)}
.tl .ico{width:46px;height:46px}
.tl .ico svg{width:22px;height:22px}
.tl h3{margin:8px 0 0;font-weight:400;font-size:19px;line-height:1.3}
.tl .tla:after{content:"";position:absolute;inset:0;border-radius:16px}
.tl .tla:focus-visible{outline:0}
.tl:has(.tla:focus-visible){outline:2px solid var(--mint);outline-offset:3px}
.tl p{margin:0;color:var(--mu);font-size:14.5px;line-height:1.6}
.tl .go{margin-top:auto;padding-top:10px;display:flex;flex-wrap:wrap;gap:6px 16px;font-size:14px}
.tl .go a{position:relative;z-index:1;color:var(--accent)}
.tl .go a:after{content:" \2192"}
.tl .go a:hover{text-decoration:underline;text-underline-offset:4px}
.tl-ask{border-style:dashed;background:var(--hov)}
@media(max-width:1000px){.tiles{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.tiles{grid-template-columns:1fr;margin-top:36px}.tl{min-height:0}.needs{padding:84px 0 20px}}

/* ================= homepage: treatment train ================= */
.train{padding:70px 0 120px}
.tr{list-style:none;margin:60px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);position:relative}
.tr.rv{opacity:1;transform:none;transition:none}
.tr .sg{position:relative;padding-right:22px}
.tr .nd{width:52px;height:52px;border-radius:50%;border:1px solid var(--accent);background:var(--bg);display:grid;place-items:center;color:var(--accent);position:relative;z-index:1;transition:transform .6s var(--ease),opacity .6s,background .4s}
.tr .nd svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.tr .sg:hover .nd{background:var(--hov)}
.tr .sg:not(:last-child):before{content:"";position:absolute;left:62px;right:8px;top:26px;height:1px;background:repeating-linear-gradient(90deg,var(--accent) 0 6px,transparent 6px 12px);opacity:.65;clip-path:inset(0);transition:clip-path .9s var(--ease)}
.tr .sg h3{margin:20px 0 6px;font-weight:400;font-size:18px;line-height:1.3}
.tr .sg p{margin:0;color:var(--mu);font-size:14.5px;line-height:1.6;max-width:30ch}
.tr .pr{display:inline-block;margin-top:12px;font-size:14px;color:var(--accent)}
.tr .pr:after{content:" \2192"}
.tr .pr:hover{text-decoration:underline;text-underline-offset:4px}
.tr .sg h3,.tr .sg p,.tr .pr{transition:opacity .7s var(--ease),transform .7s var(--ease)}
/* the line draws itself, stage by stage, the first time the diagram scrolls into view */
.tr:not(.in) .nd{opacity:0;transform:scale(.7)}
.tr:not(.in) .sg:before{clip-path:inset(0 100% 0 0)}
.tr:not(.in) .sg h3,.tr:not(.in) .sg p,.tr:not(.in) .pr{opacity:0;transform:translateY(10px)}
.tr.in .nd,.tr.in .sg h3,.tr.in .sg p,.tr.in .pr{transition-delay:calc(var(--i)*.5s)}
.tr.in .sg:before{transition-delay:calc(var(--i)*.5s + .25s)}
.ft{margin-top:56px;border:1px solid var(--line);border-radius:16px;padding:20px 24px;background:var(--hov);display:flex;gap:18px 20px;align-items:center;flex-wrap:wrap}
.ft .ico{flex:none}
.ft div{flex:1;min-width:220px}
.ft b{display:block;font-weight:400;font-size:17px}
.ft small{display:block;font-size:14px;color:var(--mu);line-height:1.55;margin-top:2px}
@media(max-width:820px){
 .tr{grid-template-columns:1fr;gap:34px;margin-top:44px}
 .tr .sg{padding:0 0 0 76px;min-height:52px}
 .tr .nd{position:absolute;left:0;top:0}
 .tr .sg:not(:last-child):before{left:26px;right:auto;top:58px;bottom:-30px;width:1px;height:auto;background:repeating-linear-gradient(180deg,var(--accent) 0 6px,transparent 6px 12px)}
 .tr:not(.in) .sg:before{clip-path:inset(0 0 100% 0)}
 .tr .sg h3{margin-top:2px}
 .train{padding:50px 0 90px}
}
@media(prefers-reduced-motion:reduce){.tr *,.tr .sg:before,.tl{transition:none!important}.tr:not(.in) .nd,.tr:not(.in) .sg h3,.tr:not(.in) .sg p,.tr:not(.in) .pr{opacity:1;transform:none}.tr:not(.in) .sg:before{clip-path:inset(0)}}

/* ================= privacy policy / long-form text ================= */
.prose{padding:70px 0 100px}
.pdate{margin:0 0 36px;color:var(--mu);font-size:14px;letter-spacing:.04em}
.pgrid{display:grid;grid-template-columns:240px minmax(0,1fr);gap:72px;align-items:start}
.ptoc{position:sticky;top:104px;font-size:14.5px}
.ptoc b{display:block;font-weight:500;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--tx);margin-bottom:14px}
.ptoc ol{list-style:none;margin:0;padding:0;display:grid;gap:2px;border-left:1px solid var(--line)}
.ptoc a{display:block;padding:7px 0 7px 16px;color:var(--mu);transition:color .25s}
.ptoc a:hover{color:var(--accent)}
.pbody2{max-width:72ch}
.psec{padding:0 0 44px;scroll-margin-top:100px}
.psec h2{font-size:clamp(24px,2.6vw,30px);max-width:none;margin:0 0 16px;font-weight:300}
.psec p,.psec li{color:var(--tx);line-height:1.75;font-size:16.5px}
.psec p{margin:0 0 14px}
.psec ul{margin:0 0 14px;padding-left:22px;display:grid;gap:10px}
.psec li::marker{color:var(--accent)}
.psec li b{font-weight:500}
.psec a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
@media(max-width:900px){.pgrid{grid-template-columns:1fr;gap:36px}.ptoc{position:static}.ptoc ol{grid-template-columns:1fr 1fr;border-left:0;gap:0 20px}.ptoc a{padding:8px 0}}
@media(max-width:520px){.ptoc ol{grid-template-columns:1fr}}

/* ================= form thank-you / error ================= */
.thx{display:grid;gap:14px;justify-items:start;align-content:start;align-self:start;padding:30px 28px;border:1px solid var(--accent);border-radius:16px;background:var(--hov)}
.thx:focus{outline:0}
.thx:focus-visible{outline:2px solid var(--mint);outline-offset:4px}
.thx .ico{width:52px;height:52px;border-color:var(--accent);background:var(--bg);color:var(--accent)}
.thx .ico svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.thx h3{margin:6px 0 0;font-weight:300;font-size:clamp(26px,3vw,34px);line-height:1.15;letter-spacing:-.01em}
.thx p{margin:0;color:var(--mu);max-width:44ch}
.thx a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.ferr{margin:0;padding:12px 16px;border:1px solid #d9737a;border-radius:12px;color:var(--tx);font-size:14.5px;background:rgba(217,115,122,.1)}
.ferr a{color:var(--accent);text-decoration:underline}
.note a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
button[disabled].btn{opacity:.6;cursor:progress}
form[hidden],.thx[hidden]{display:none!important}

/* skip link */
.skip{position:fixed;left:16px;top:-80px;z-index:100;background:var(--mint);color:#06130f;padding:12px 20px;border-radius:99px;font-weight:500;font-size:14.5px;transition:top .2s}
.skip:focus{top:calc(12px + env(safe-area-inset-top,0px));outline:2px solid var(--tx);outline-offset:3px}

/* hero photos sit on a dark base in both themes, so the light hero text always has enough contrast */
.hero{background:#0a0f0e}
.bi small{opacity:1}

/* stronger scrim behind hero text and a soft shade behind the header, so text stays readable over bright photos */
.hero.sub:after{background:linear-gradient(90deg,rgba(10,15,14,.88),rgba(10,15,14,.6) 62%,rgba(10,15,14,.42)),linear-gradient(180deg,transparent 60%,var(--bg))}
#nav:not(.s):not(.mopen):before{content:"";position:absolute;left:0;right:0;top:0;height:calc(100% + 28px);background:linear-gradient(rgba(10,15,14,.62),transparent);pointer-events:none;z-index:-1}
@media(max-width:900px){.hero:after,.hero.sub:after{background:linear-gradient(180deg,rgba(10,15,14,.8),rgba(10,15,14,.7) 84%,var(--bg))}}

/* comfortable tap targets */
.tl .go a{display:inline-block;padding:4px 0}
.tl .tla{display:inline-block;padding:2px 0}
.crumb a{display:inline-block;padding:5px 3px;margin:-5px -3px}
.fx .fbt a{display:inline-block;padding:5px 2px;margin:-5px -2px}
.fx a[aria-label="AirAqua home"]{display:inline-block;line-height:0;padding:2px 0}
.ctbl td a{display:inline-block;padding:4px 0}
.dd.esc .ddm{opacity:0!important;visibility:hidden!important}
@media(max-width:400px){.stats{gap:14px}.stats b{font-size:34px}}
.tr .pr{padding:5px 0}

/* Company dropdown: a compact single-column menu */
.ddm>.mm.sm{width:290px;grid-template-columns:1fr}
.dd2 .ddm{left:-40px}
.mm.sm .c1{padding:10px}
.mm.sm a.mi{align-items:center}
@media(max-width:940px){.dd2{display:none!important}}

/* photo heroes on sub-pages: image under a dark scrim so headings and body copy stay AA-readable */
.pg-hero .bgimg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.pg-hero:has(.bgimg):before{z-index:1;background:linear-gradient(90deg,rgba(8,13,12,.82),rgba(8,13,12,.6) 50%,rgba(8,13,12,.2)),linear-gradient(180deg,rgba(8,13,12,.45),rgba(8,13,12,0) 30%,rgba(8,13,12,.3))}
.pg-hero:has(.bgimg) .wrap{position:relative;z-index:2}
@media(max-width:900px){.pg-hero:has(.bgimg):before{background:linear-gradient(180deg,rgba(8,13,12,.8),rgba(8,13,12,.7))}}