/* Self-hosted web fonts (SIL Open Font License) — no third-party font requests */
@font-face{font-family:"Montserrat";font-style:normal;font-weight:400;font-display:swap;src:url("../fonts/montserrat-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Montserrat";font-style:normal;font-weight:500;font-display:swap;src:url("../fonts/montserrat-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Montserrat";font-style:normal;font-weight:600;font-display:swap;src:url("../fonts/montserrat-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Montserrat";font-style:normal;font-weight:700;font-display:swap;src:url("../fonts/montserrat-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"Montserrat";font-style:normal;font-weight:800;font-display:swap;src:url("../fonts/montserrat-latin-800-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url("../fonts/inter-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;src:url("../fonts/inter-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url("../fonts/inter-latin-600-normal.woff2") format("woff2")}

/* ============================================================
   ChemVigil — site stylesheet
   Design tokens and components carried over from the original
   single-page design; additions marked "added" below.
   ============================================================ */
:root{
  --blue-900:#0B2458; --blue-700:#1B4F9C; --blue-500:#1F73C6; --cyan:#29B6DC; --teal:#1A9FB5;
  --slate:#44536A; --ink:#1C2A3F; --muted:#5E6E84; --bg:#F3F7FC; --tint:#E7F5FB; --line:#E2E9F2;
  --grad:linear-gradient(135deg,#1B4F9C 0%,#1F73C6 55%,#29B6DC 100%);
  --grad-dark:linear-gradient(135deg,#0B2458 0%,#1B4F9C 60%,#1F86C7 100%);
  --header-h:76px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);line-height:1.65;background:#fff;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4,.wm,.btn,.eyebrow,.tag{font-family:"Montserrat","Inter",sans-serif}
a{color:var(--blue-500)}
img,svg{max-width:100%;height:auto}
[hidden]{display:none !important}
.container{max-width:1160px;margin:0 auto;padding:0 24px}

/* added: accessibility */
.skip-link{position:absolute;left:-9999px;top:8px;background:var(--blue-900);color:#fff;padding:10px 16px;border-radius:8px;z-index:1000;font-weight:600;text-decoration:none}
.skip-link:focus{left:16px}
:focus-visible{outline:3px solid var(--cyan);outline-offset:2px}
.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}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none !important;transition:none !important}
}

/* header / nav */
header.site-header{position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:100}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:20px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--blue-700)}
.brand svg{width:38px;height:43px;flex-shrink:0}
.wm{font-size:1.45rem;letter-spacing:.02em;color:var(--blue-700);line-height:1;white-space:nowrap}
.wm b{font-weight:800}.wm span{font-weight:400}
.links{display:flex;gap:18px;list-style:none;align-items:center}
.links a{text-decoration:none;color:var(--slate);font-size:.875rem;font-weight:500;position:relative;padding:6px 0;white-space:nowrap}
.links a:hover{color:var(--blue-700)}
.links a.active{color:var(--blue-700);font-weight:600}
.links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--grad);border-radius:2px}
.links .mobile-only{display:none}
.menu-toggle{display:none;background:none;border:none;font-size:1.7rem;cursor:pointer;color:var(--blue-700);line-height:1;padding:6px 8px;border-radius:8px}
.header-cta{padding:11px 18px;font-size:.88rem;white-space:nowrap}

/* buttons */
.btn{display:inline-block;background:var(--grad);color:#fff;padding:13px 24px;border-radius:8px;text-decoration:none;font-weight:600;border:none;cursor:pointer;font-size:.93rem;transition:.2s;box-shadow:0 6px 18px rgba(31,115,198,.25);text-align:center}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(31,115,198,.35)}
.btn.ghost{background:transparent;border:1.5px solid rgba(255,255,255,.6);box-shadow:none}
.btn.outline{background:#fff;color:var(--blue-700);border:1.5px solid var(--blue-700);box-shadow:none}
.btn.white{background:#fff;color:var(--blue-700)}
.btn[disabled]{opacity:.7;cursor:progress;transform:none}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}

/* heroes */
.hero,.page-hero{background:var(--grad-dark);color:#fff;position:relative;overflow:hidden}
.hero::before,.page-hero::before{content:"";position:absolute;inset:0;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='98' viewBox='0 0 56 98'%3E%3Cpath d='M28 66L0 50V16L28 0l28 16v34L28 66zm0 32L0 82V66l28 16 28-16v16L28 98z' fill='none' stroke='%23ffffff' stroke-opacity='0.06' stroke-width='1'/%3E%3C/svg%3E");pointer-events:none}
.hero-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;padding:96px 0 90px;position:relative}
.kicker{display:inline-block;background:rgba(41,182,220,.18);border:1px solid rgba(41,182,220,.45);color:#BDEBFA;padding:6px 14px;border-radius:30px;font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:22px;font-family:"Montserrat",sans-serif}
.hero h1{font-size:clamp(2.1rem,4.4vw,3.2rem);line-height:1.12;letter-spacing:-.02em;font-weight:800}
.hero h1 em{font-style:normal;color:#6FD9F5}
.hero p{font-size:1.15rem;max-width:620px;margin:22px 0 34px;color:#D6E4F5}
.hero-art{display:flex;justify-content:center;position:relative}
.hero-art .glow{position:absolute;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(41,182,220,.45),transparent 65%);top:50%;left:50%;transform:translate(-50%,-50%)}
.hero-art svg{width:250px;height:282px;position:relative;color:#fff}
.page-hero{padding:76px 0 60px}
.page-hero .container{position:relative}
.page-hero h1{font-size:clamp(1.9rem,3.8vw,2.7rem);letter-spacing:-.02em;line-height:1.2;font-weight:800}
.page-hero p{font-size:1.1rem;color:#D6E4F5;max-width:720px;margin-top:14px}
.crumb{font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:#8FD8F0;font-weight:600;margin-bottom:12px;font-family:"Montserrat",sans-serif}
.crumb a{color:inherit;text-decoration:none}
.crumb a:hover{text-decoration:underline}

/* sections */
.block{padding:84px 0}.alt{background:var(--bg)}
h2{font-size:clamp(1.55rem,3vw,2.05rem);color:var(--blue-900);margin-bottom:14px;letter-spacing:-.015em;line-height:1.25;font-weight:700}
h3,h2.h3{font-size:1.1rem;color:var(--blue-900);margin-bottom:8px;font-weight:700;letter-spacing:0;line-height:1.35}
.lead{font-size:1.1rem;color:var(--muted);max-width:780px}
p+p{margin-top:14px}
.section-head{margin-bottom:44px}
.section-head.center{text-align:center}
.eyebrow{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;color:var(--teal);font-weight:700;margin-bottom:10px}

.grid{display:grid;gap:26px}
.g3{grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr))}
.g2{grid-template-columns:repeat(auto-fit,minmax(min(330px,100%),1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px;transition:.25s}
.card:hover{box-shadow:0 14px 34px rgba(27,79,156,.10);transform:translateY(-2px)}
.card .more{display:inline-block;margin-top:16px;font-weight:600;text-decoration:none;font-size:.93rem}
.icon{width:52px;height:52px;border-radius:12px;background:var(--tint);display:grid;place-items:center;margin-bottom:18px}
.icon svg{width:26px;height:26px;stroke:var(--blue-700);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.trust{background:#fff;border-bottom:1px solid var(--line);padding:22px 0}
.trust .container{display:flex;align-items:center;gap:26px;flex-wrap:wrap;justify-content:center}
.trust small{font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600}
.trust span{font-family:"Montserrat",sans-serif;font-weight:700;color:#8494AA;font-size:.95rem}

.proof{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:22px;margin-top:40px}
.proof div{background:#fff;border-radius:12px;padding:22px 24px;border-top:3px solid var(--cyan)}
.proof b{display:block;color:var(--blue-900);font-family:"Montserrat",sans-serif;margin-bottom:4px}
.proof .t{color:var(--muted);font-size:.95rem}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 30px}
.pill{background:#fff;border:1px solid var(--line);border-radius:30px;padding:9px 18px;font-size:.92rem;font-weight:500;color:var(--blue-700)}

.steps{counter-reset:s}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 26px 26px 88px}
.step::before{counter-increment:s;content:counter(s);position:absolute;left:24px;top:26px;width:44px;height:44px;border-radius:12px;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:700;font-family:"Montserrat",sans-serif}

.tag{display:inline-block;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;padding:5px 12px;border-radius:20px;background:var(--tint);color:var(--blue-700);margin-bottom:14px}
.tag.road{background:#EEF1F5;color:var(--muted)}
.meta{font-size:.92rem;color:var(--muted);margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.meta b{color:var(--ink)}
.tier-title{display:flex;align-items:center;gap:14px;font-size:1.25rem;margin:60px 0 22px}
.tier-title::after{content:"";flex:1;height:1px;background:var(--line)}

ul.clean{list-style:none}
ul.clean li{padding:8px 0 8px 32px;position:relative}
ul.clean li::before{content:"✓";position:absolute;left:0;top:8px;width:22px;height:22px;border-radius:50%;background:var(--tint);color:var(--blue-700);font-weight:700;font-size:.8rem;display:grid;place-items:center}
ul.src{list-style:none}
ul.src li{padding:11px 0;border-bottom:1px solid var(--line);font-size:.95rem}
ul.src li:last-child{border-bottom:none}
ul.src b{color:var(--blue-700)}
.card.premium{border:1.5px solid #BFE4F3}

.callout{background:linear-gradient(135deg,#F0F8FD,#E7F5FB);border-left:4px solid var(--cyan);padding:26px 30px;border-radius:0 12px 12px 0;margin-top:30px}
.cta-band{background:var(--grad);color:#fff;text-align:center;padding:76px 0}
.cta-band h2{color:#fff}
.cta-band p{color:#E3F1FB;max-width:620px;margin:0 auto 30px}

.report{background:#fff;border-radius:14px;box-shadow:0 20px 50px rgba(11,36,88,.15);overflow:hidden;border:1px solid var(--line)}
.report-head{background:var(--grad);color:#fff;padding:20px 24px;font-family:"Montserrat",sans-serif}
.report-head small{display:block;opacity:.8;font-size:.75rem;letter-spacing:.1em;text-transform:uppercase}
.report-body{padding:22px 24px}
.r-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:.9rem}
.r-row:last-child{border-bottom:none}
.chip{font-size:.72rem;font-weight:700;padding:3px 10px;border-radius:20px;white-space:nowrap}
.chip.h{background:#FDE7E7;color:#B42318}.chip.m{background:#FFF3DF;color:#9A5A00}.chip.l{background:#E3F6EC;color:#1E7B4B}
.bar{height:8px;border-radius:4px;background:var(--line);margin:8px 0 4px}
.bar i{display:block;height:100%;width:86%;border-radius:4px;background:var(--grad)}

.mv{background:var(--grad-dark);color:#fff;border-radius:14px;padding:32px}
.mv h3{color:#8FD8F0;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase}
.mv p{font-family:"Montserrat",sans-serif;font-weight:600;font-size:1.25rem;line-height:1.45}
.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;text-align:center}
.stat b{display:block;font-family:"Montserrat",sans-serif;font-size:2.2rem;font-weight:800;color:var(--blue-700);line-height:1.1}
.stat span{color:var(--muted);font-size:.92rem}

.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 24px;margin-bottom:12px}
.faq summary{font-weight:600;cursor:pointer;color:var(--blue-900);font-size:1.03rem;list-style:none;display:flex;justify-content:space-between;gap:16px;font-family:"Montserrat",sans-serif}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--cyan);font-size:1.5rem;line-height:1;flex-shrink:0}
.faq details[open] summary::after{content:"–"}
.faq details p{margin-top:12px;color:var(--muted)}

/* forms */
form{display:grid;gap:18px}
label{font-weight:600;font-size:.88rem;display:block;margin-bottom:6px;color:var(--blue-900)}
input,select,textarea{width:100%;padding:12px 14px;border:1px solid #CDD8E4;border-radius:8px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(41,182,220,.2)}
textarea{resize:vertical;min-height:110px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:38px;box-shadow:0 14px 40px rgba(27,79,156,.08)}
.form-note{display:none;padding:16px 20px;border-radius:10px;font-weight:600;border-left:4px solid var(--cyan)}
.form-note.show{display:block}
.form-note.success{background:var(--tint);color:var(--blue-700)}
.form-note.error{background:#FDE7E7;color:#B42318;border-left-color:#B42318}
.form-note a{color:inherit}
.req{color:#B42318;font-weight:700}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:.88rem;color:var(--muted);font-weight:400;margin:0}
.consent input{width:18px;height:18px;margin-top:3px;flex-shrink:0;accent-color:var(--blue-500)}
.consent a{color:var(--blue-500)}
.hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.contact-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:34px;align-items:start}
.info-card{background:var(--grad-dark);color:#fff;border-radius:16px;padding:34px}
.info-card h3,.info-card .h3{color:#fff}
.info-card p{color:#D6E4F5;font-size:.95rem}
.info-card .item{margin-top:22px;color:#D6E4F5;word-break:break-word}
.info-card .item small{display:block;color:#8FD8F0;font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600}
.info-card a{color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35)}
.info-card a:hover{border-bottom-color:#fff}
.wa{display:inline-flex;align-items:center;gap:8px;margin-top:8px;font-size:.88rem;color:#BDEBFA !important;border:none !important}
.wa svg{width:18px;height:18px;fill:#25D366}

/* added: legal / prose pages */
.prose{max-width:840px}
.prose h2{font-size:1.35rem;margin-top:38px}
.prose h3{margin-top:24px}
.prose ul,.prose ol{margin:12px 0 12px 22px}
.prose li{margin:6px 0}
.prose p{margin-top:12px}
.prose .updated{color:var(--muted);font-size:.9rem}
.prose table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.95rem}
.prose th,.prose td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.prose th{color:var(--blue-900);background:var(--bg)}

/* added: cookie consent banner */
.consent-banner{position:fixed;left:16px;right:16px;bottom:16px;z-index:900;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 50px rgba(11,36,88,.2);padding:20px 22px;display:none;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;max-width:960px;margin:0 auto}
.consent-banner.show{display:flex}
.consent-banner p{font-size:.9rem;color:var(--slate);max-width:620px}
.consent-banner .btn{padding:10px 18px;font-size:.88rem}
.consent-banner .actions{display:flex;gap:10px;flex-wrap:wrap}

/* footer */
footer{background:var(--blue-900);color:#A9B9D0;padding:66px 0 28px;font-size:.9rem}
footer a{color:#DCE6F2;text-decoration:none}
footer a:hover{color:var(--cyan)}
.fgrid{display:grid;grid-template-columns:2.2fr 1fr 1fr;gap:44px;margin-bottom:44px}
.fgrid .fh{color:#fff;margin-bottom:16px;font-size:.9rem;letter-spacing:.06em;text-transform:uppercase;font-weight:700}
.fgrid ul{list-style:none}.fgrid li{padding:5px 0}
footer .wm{color:#fff}
.ftag{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:#8FD8F0;font-weight:600;margin:10px 0 16px;font-family:"Montserrat",sans-serif}
.fcontact{margin-top:14px;line-height:1.9}
.fbottom{border-top:1px solid #1C3A6E;padding-top:22px;font-size:.82rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.fbottom .legal a{margin-left:14px}

/* added: 404 */
.notfound{text-align:center;padding:100px 0}
.notfound b{display:block;font-family:"Montserrat",sans-serif;font-size:5rem;color:var(--blue-700);line-height:1}

/* responsive */
@media (max-width:1140px){
  .menu-toggle{display:block}.header-cta{display:none}
  .links{display:none;position:absolute;top:var(--header-h);left:0;right:0;flex-direction:column;align-items:flex-start;background:#fff;padding:18px 24px 22px;border-bottom:1px solid var(--line);gap:4px;box-shadow:0 20px 40px rgba(11,36,88,.12);max-height:calc(100vh - var(--header-h));overflow-y:auto}
  .links.open{display:flex}
  .links li{width:100%}
  .links a{display:block;padding:11px 0;font-size:1rem;border-bottom:1px solid var(--line);white-space:normal}
  .links li:last-child a{border-bottom:none}
  .links a.active::after{display:none}
  .links .mobile-only{display:block}
  .links .mobile-cta{margin-top:12px;border-bottom:none}
  .links .mobile-cta .btn{display:block;width:100%;color:#fff;border-bottom:none;text-align:center;padding:13px 24px;font-weight:600}
}
@media (max-width:860px){
  .hero-inner{grid-template-columns:1fr;padding:72px 0}
  .hero-art{display:none}
  .contact-grid{grid-template-columns:1fr}
  .g4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .row2,.fgrid{grid-template-columns:1fr}
  .form-card{padding:24px}
  .block{padding:60px 0}
  .step{padding:84px 22px 22px}.step::before{left:22px;top:22px}
  .cta-band{padding:60px 0}
  .card{padding:24px}
  .fbottom{flex-direction:column}
  .fbottom .legal a{margin:0 14px 0 0}
  .consent-banner{left:10px;right:10px;bottom:10px;padding:16px}
}
@media (max-width:520px){
  .g4{grid-template-columns:1fr}
}
@media (max-width:400px){
  .container{padding:0 16px}
  .g3,.g4,.proof{grid-template-columns:1fr}
  .hero h1{font-size:1.9rem}
  .page-hero h1{font-size:1.7rem}
  .btn{width:100%}
  .btn-row{flex-direction:column}
  .header-cta{display:none}
}
@media print{
  header.site-header,footer,.cta-band,.consent-banner,.menu-toggle{display:none !important}
  .page-hero,.hero{background:none;color:#000}
  .page-hero p,.hero p{color:#333}
}