/* 904 Epoxy Coatings — shared interior-page stylesheet.
   Tokens & components mirror public/index.html. Keep in sync with CLAUDE.md design tokens. */
:root{
  --graphite:#22262B; --graphite-deep:#16191D;
  --cobalt:#3E7CC4; --cobalt-deep:#295C99;
  --steel:#8C97A1;
  --concrete:#ECEDEA; --paper:#FBFBFA;
  --muted-dark:#9AA3AB; --secondary:#4E555C;
  --line-dark:#31363C; --line-light:#DEDFDB; --ink:#22262B;
  --maxw:1100px; --radius:12px; --pill:999px; --pad:clamp(64px,9vw,112px);
  --fd:"Archivo",system-ui,sans-serif; --fb:"Inter",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--fb);color:var(--ink);background:var(--concrete);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--fd);line-height:1.08;letter-spacing:-0.02em}
h1,h2{font-weight:800}h2{font-size:clamp(26px,3.4vw,38px)}h3{font-size:clamp(19px,2vw,22px);font-weight:700}
p{max-width:68ch}a{color:inherit}img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:800px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:15px;padding:13px 22px;border-radius:var(--pill);text-decoration:none;border:1.5px solid transparent;transition:transform .15s,background .2s,border-color .2s}
.btn:focus-visible{outline:3px solid var(--cobalt);outline-offset:2px}
.btn-primary{background:var(--cobalt);color:#fff}.btn-primary:hover{transform:translateY(-2px);background:#4d8ad2}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}.btn-ghost:hover{border-color:var(--cobalt);color:#bcd4ee}
.btn-outline{border-color:var(--cobalt-deep);color:var(--cobalt-deep)}.btn-outline:hover{background:var(--cobalt-deep);color:#fff}

/* signature "flake broadcast" divider */
.flakeline{height:12px;position:relative;background-repeat:no-repeat;background-position:0 6px;background-image:linear-gradient(90deg,transparent,var(--steel) 12%,var(--steel) 88%,transparent);background-size:100% 1px}
.flakeline::after{content:"";position:absolute;inset:0;background-image:
   radial-gradient(circle,var(--cobalt) 40%,transparent 42%),
   radial-gradient(circle,var(--steel) 40%,transparent 42%),
   radial-gradient(circle,#C9CDCF 40%,transparent 42%),
   radial-gradient(circle,var(--cobalt) 40%,transparent 42%);
   background-size:5px 5px,4px 4px,4px 4px,5px 5px;
   background-position:18% 3px,34% 8px,60% 2px,78% 7px;background-repeat:no-repeat;opacity:.9}

/* utility + nav */
.util{background:var(--graphite-deep);color:var(--muted-dark);font-size:13px;border-bottom:1px solid var(--line-dark)}
.util .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.util a{color:var(--muted-dark);text-decoration:none}.util strong{color:#fff;font-weight:600}
.util .u-right{display:flex;gap:18px;align-items:center}
@media(max-width:720px){.util .u-hide{display:none}}
header.nav{background:var(--graphite-deep);position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line-dark)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{font-family:var(--fd);font-weight:800;font-size:22px;letter-spacing:-0.02em;color:#fff;text-decoration:none}.brand .n9{color:var(--cobalt)}
.navlinks{display:flex;gap:26px;align-items:center}
.navlinks a{color:#d7dbdf;text-decoration:none;font-size:15px;font-weight:500}.navlinks a:hover{color:#bcd4ee}
.nav-call{display:none}
@media(max-width:860px){.navlinks{display:none}.nav-call{display:inline-flex}}

/* image hero (interior) */
.ihero{position:relative;color:#fff;padding:96px 0 72px;overflow:hidden;isolation:isolate;background:linear-gradient(160deg,#282d33,#15181c)}
.ihero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.ihero-scrim{position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(21,24,28,.62),rgba(21,24,28,.80)),radial-gradient(90% 70% at 82% 0%,rgba(62,124,196,.20),transparent 60%)}
.crumb{font-size:13px;color:var(--muted-dark);margin-bottom:18px}
.crumb a{color:var(--muted-dark);text-decoration:none}.crumb a:hover{color:#bcd4ee}.crumb span{color:#fff}
.ihero h1{font-size:clamp(32px,5vw,52px);max-width:20ch;margin-bottom:20px}
.ihero .answer{font-size:clamp(17px,2.1vw,20px);color:#dfe3e7;max-width:60ch;margin-bottom:30px;border-left:3px solid var(--cobalt);padding-left:18px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.cta-note{font-size:13.5px;color:var(--muted-dark);margin-top:16px}.cta-note b{color:#fff;font-weight:600}

/* article prose */
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--cobalt-deep);margin-bottom:14px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--cobalt-deep);display:inline-block}
article{padding:var(--pad) 0}
article h2{margin:0 0 16px}
article h2:not(:first-child),.blk+ .blk{margin-top:0}
.blk{margin-bottom:46px}
article p{color:var(--secondary);font-size:16.5px;margin-bottom:16px}
article ul{margin:0 0 18px 0;padding-left:0;list-style:none;max-width:68ch}
article li{position:relative;padding-left:26px;margin-bottom:11px;color:var(--secondary);font-size:16px}
article li::before{content:"";position:absolute;left:2px;top:9px;width:7px;height:7px;border-radius:2px;background:var(--cobalt);transform:rotate(45deg)}
article strong{color:var(--ink);font-weight:600}
.callout{background:var(--paper);border:1px solid var(--line-light);border-left:3px solid var(--cobalt);border-radius:var(--radius);padding:22px 24px;margin:0 0 46px}
.callout p{margin:0;color:var(--ink)}.callout .k{display:block;font-family:var(--fd);font-weight:700;font-size:14px;letter-spacing:.03em;text-transform:uppercase;color:var(--cobalt-deep);margin-bottom:8px}

/* comparison table */
.ctable{width:100%;border-collapse:collapse;margin:0 0 46px;font-size:15.5px;border:1px solid var(--line-light);border-radius:var(--radius);overflow:hidden}
.ctable th,.ctable td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line-light);vertical-align:top}
.ctable thead th{background:var(--graphite);color:#fff;font-family:var(--fd);font-weight:700;font-size:14px}
.ctable tbody th{font-weight:600;color:var(--ink);background:var(--paper);width:30%}
.ctable td{color:var(--secondary)}
.ctable tr:last-child th,.ctable tr:last-child td{border-bottom:none}
.ctable .win{color:var(--cobalt-deep);font-weight:600}

/* spec row */
.specs{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:0 0 46px}
.spec{background:var(--paper);border:1px solid var(--line-light);border-radius:var(--radius);padding:22px}
.spec .n{font-family:var(--fd);font-weight:800;font-size:26px;color:var(--cobalt-deep);line-height:1;margin-bottom:8px}
.spec .l{font-size:14px;color:var(--secondary)}

/* section shells */
section{padding:var(--pad) 0}
.section-dark{background:var(--graphite);color:#fff}.section-dark p{color:#c8ced3}.section-dark h2{color:#fff}
.kicker{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--cobalt-deep);margin-bottom:14px}
.section-dark .kicker{color:var(--cobalt)}
.sec-head{margin-bottom:40px;max-width:70ch}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line-light);padding:20px 0}
.faq summary{font-family:var(--fd);font-weight:700;font-size:19px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--cobalt-deep);font-weight:700;font-size:24px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding-top:12px}.faq .ans p{font-size:15.5px;color:var(--secondary)}.faq .ans p .a-first{color:var(--ink);font-weight:500}

/* related services */
.rel{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rel a{background:rgba(255,255,255,.03);border:1px solid var(--line-dark);border-radius:var(--radius);padding:22px 22px;text-decoration:none;transition:transform .18s,border-color .18s}
.rel a:hover{transform:translateY(-4px);border-color:var(--cobalt)}
.rel h3{color:#fff;font-size:18px;margin-bottom:6px}.rel p{color:#c8ced3;font-size:14px;margin:0}
.rel .go{color:var(--cobalt);font-weight:600;font-size:14px;display:inline-block;margin-top:12px}

/* closing */
.closing{background:linear-gradient(120deg,var(--graphite),#2b333b);color:#fff;text-align:center}
.closing h2{max-width:22ch;margin:0 auto 18px}.closing p{margin:0 auto 30px;color:#c8ced3}.closing .cta-row{justify-content:center}

/* footer */
footer{background:var(--graphite-deep);color:var(--muted-dark);padding:64px 0 34px;font-size:14px}
.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;border-bottom:1px solid var(--line-dark)}
footer .brand{font-size:20px;margin-bottom:12px;display:inline-block}footer .brand .n9{color:var(--cobalt)}
footer p{color:var(--muted-dark);max-width:34ch;font-size:14px}
footer h4{color:#fff;font-size:13px;letter-spacing:.05em;text-transform:uppercase;margin-bottom:14px;font-weight:600}
footer ul{list-style:none}footer li{margin-bottom:9px}footer a{color:var(--muted-dark);text-decoration:none}footer a:hover{color:#bcd4ee}
.legal{padding-top:26px;font-size:12.5px;color:#69717a;line-height:1.7}
.legal .disc{background:rgba(62,124,196,.06);border:1px solid var(--line-dark);border-radius:10px;padding:14px 16px;margin-bottom:18px;color:#959ea6}

.r2{opacity:0;transform:translateY(22px);transition:opacity .7s,transform .7s}.r2.in{opacity:1;transform:none}
@media(max-width:860px){.specs,.rel{grid-template-columns:1fr}.fgrid{grid-template-columns:1fr 1fr}.cta-row .btn{flex:1 1 auto;justify-content:center}.ctable thead{display:none}.ctable,.ctable tbody,.ctable tr,.ctable th,.ctable td{display:block;width:100%}.ctable tbody th{background:var(--graphite);color:#fff;border:none}.ctable td{border-bottom:1px solid var(--line-light)}.ctable td::before{content:attr(data-l);display:block;font-family:var(--fd);font-weight:700;font-size:12px;text-transform:uppercase;color:var(--cobalt-deep);margin-bottom:4px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}.r2{opacity:1;transform:none;transition:none}.btn:hover,.rel a:hover{transform:none}}