/* ============================================================
   CAGIFRAIS — feuille de style des pages secondaires
   (gamme, réglementation F-Gas, pages légales)
   Reprend les tokens de la page d'accueil pour rester cohérent.
   ============================================================ */
:root{
  --green:#397D4B;--green-deep:#2A6238;--green-soft:#EAF3EC;
  --blue:#6CB2DA;--blue-deep:#4A91BC;--blue-soft:#EAF4FB;
  --ink:#1A1A1A;--ink-2:#3A3F44;--ink-3:#6B7178;
  --line:#E6E9ED;--grey:#F5F7F9;--grey-2:#FAFBFC;--white:#fff;
  --radius-sm:8px;--radius:14px;--radius-lg:22px;
  --shadow:0 1px 2px rgba(20,30,40,.05),0 8px 24px rgba(20,30,40,.06);
  --shadow-lg:0 12px 40px rgba(20,30,40,.12);
  --ease:cubic-bezier(.2,.7,.2,1);--container:1100px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{margin:0;font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:16px;line-height:1.6;color:var(--ink);background:var(--white);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
h1,h2,h3,h4{font-family:'Fraunces',Georgia,serif;font-weight:500;letter-spacing:-.015em;line-height:1.1;margin:0;color:var(--ink);text-wrap:balance;}
h2 em,h1 em{font-style:italic;color:var(--green);}
p{margin:0;text-wrap:pretty;}
.container{max-width:var(--container);margin:0 auto;padding:0 32px;}
@media(max-width:720px){.container{padding:0 20px;}}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:'JetBrains Mono',monospace;font-size:12px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--green);margin-bottom:14px;}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:999px;font-weight:600;font-size:15px;transition:transform .25s var(--ease),background .25s var(--ease);}
.btn-primary{background:var(--green);color:#fff;}
.btn-primary:hover{background:var(--green-deep);transform:translateY(-2px);}
.btn-ghost{border:1px solid var(--line);color:var(--ink);}
.btn-ghost:hover{background:var(--grey);}
.arrow{transition:transform .25s var(--ease);}
.btn:hover .arrow{transform:translateX(3px);}

/* header */
.subhead{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.subhead-inner{display:flex;align-items:center;justify-content:space-between;height:64px;}
.subhead .brand img{height:36px;width:auto;}
.subhead-nav{display:flex;align-items:center;gap:22px;}
.subhead-nav a.back{font-size:14px;color:var(--ink-2);}
.subhead-nav a.back:hover{color:var(--green);}
@media(max-width:600px){.subhead-nav a.back{display:none;}}

/* page hero */
.page-hero{padding:44px 0 32px;border-bottom:1px solid var(--line);background:var(--grey-2);}
.page-hero h1{font-size:clamp(30px,5vw,46px);}
.page-hero .lead{margin-top:14px;font-size:18px;color:var(--ink-2);max-width:700px;}
.page-section{padding:38px 0;}
.page-section.tint{background:var(--grey);}
.section-head{max-width:720px;margin-bottom:22px;}
.section-head h2{font-size:clamp(24px,3vw,34px);}
.section-head p{margin-top:14px;color:var(--ink-2);}

/* product grid */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
@media(max-width:900px){.prod-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.prod-grid{grid-template-columns:1fr;}}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .3s var(--ease),box-shadow .3s var(--ease);}
.prod-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.prod-img{position:relative;aspect-ratio:4/3;background:var(--grey);}
.prod-img img{width:100%;height:100%;object-fit:cover;}
.prod-tags{position:absolute;top:12px;left:12px;display:flex;gap:6px;flex-wrap:wrap;}
.tag{display:inline-flex;align-items:center;gap:5px;font-family:'JetBrains Mono',monospace;font-size:10.5px;font-weight:500;padding:4px 9px;border-radius:999px;background:var(--green-soft);color:var(--green-deep);}
.tag.blue{background:var(--blue-soft);color:var(--blue-deep);}
.prod-body{padding:18px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.prod-cat{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.04em;color:var(--ink-3);text-transform:uppercase;}
.prod-name{font-size:19px;}
.prod-specs{list-style:none;margin:4px 0 0;padding:0;display:flex;flex-direction:column;gap:6px;}
.prod-specs li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-2);}
.prod-specs li::before{content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:50%;background:var(--green);}
.prod-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);}
.prod-ref{font-size:12px;color:var(--ink-3);}
.prod-link{font-weight:600;font-size:14px;color:var(--green);}

/* réglementation / F-Gas */
.lead-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:start;}
@media(max-width:820px){.lead-grid{grid-template-columns:1fr;}}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}
.aside-card .lbl{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:10px;}
.aside-card h4{font-size:18px;margin-bottom:10px;}
.aside-card p{font-size:14px;color:var(--ink-2);margin-bottom:10px;}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:8px;}
@media(max-width:780px){.timeline{grid-template-columns:repeat(2,1fr);}}
.tl-step{border-top:3px solid var(--line);padding-top:14px;}
.tl-step.now{border-color:var(--green);}
.tl-step.future{border-color:var(--blue);}
.tl-year{font-family:'JetBrains Mono',monospace;font-weight:600;font-size:20px;}
.tl-step strong{display:block;margin:6px 0 4px;font-size:15px;}
.tl-step p{font-size:13px;color:var(--ink-2);}
.prp{margin-top:8px;display:flex;flex-direction:column;gap:14px;}
.prp-bar{background:var(--grey);border-radius:10px;padding:14px 16px;display:flex;justify-content:space-between;align-items:center;gap:12px;}
.prp-bar .name{font-size:14px;color:var(--ink-2);}
.prp-bar .num{font-family:'JetBrains Mono',monospace;font-size:24px;font-weight:600;white-space:nowrap;}
.prp-bad{border-left:4px solid #C0492F;}
.prp-good{border-left:4px solid var(--green);}
.prp-note{margin-top:14px;font-size:14px;color:var(--ink-2);}
.risk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media(max-width:780px){.risk-grid{grid-template-columns:1fr;}}
.risk{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;}
.risk .n{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--ink-3);}
.risk h4{font-size:17px;margin:8px 0;}
.risk p{font-size:14px;color:var(--ink-2);}
.solution{background:var(--green-deep);color:#fff;border-radius:var(--radius-lg);padding:36px;}
.solution h3{color:#fff;font-size:26px;margin-bottom:24px;}
.solution h3 em{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media(max-width:780px){.sol-grid{grid-template-columns:1fr;}}
.sol-num{font-family:'JetBrains Mono',monospace;font-size:42px;font-weight:600;}
.sol-num small{font-size:20px;}
.solution p{color:rgba(255,255,255,.85);font-size:14px;margin-top:8px;}
.cta-band{text-align:center;padding:40px 0;}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:20px;}

/* prose légale */
.prose{max-width:760px;}
.prose h2{font-size:21px;margin:30px 0 10px;}
.prose h3{font-size:16px;margin:18px 0 6px;}
.prose p,.prose li{font-size:15px;color:var(--ink-2);line-height:1.7;}
.prose ul{padding-left:20px;margin:8px 0;}
.prose a{color:var(--green);text-decoration:underline;}
.prose .meta-note{background:var(--green-soft);border-radius:10px;padding:14px 16px;font-size:14px;color:var(--green-deep);margin:16px 0;}
.prose .upd{font-size:13px;color:var(--ink-3);margin-top:8px;}

/* footer */
.footer{background:var(--ink);color:#fff;padding:48px 0 26px;margin-top:24px;}
.footer a{color:rgba(255,255,255,.7);}
.footer a:hover{color:#fff;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px;}
@media(max-width:780px){.footer-grid{grid-template-columns:1fr 1fr;}}
.footer-logo{height:40px;width:auto;margin-bottom:12px;filter:brightness(0) invert(1);}
.footer-tag{font-size:14px;color:rgba(255,255,255,.6);max-width:300px;}
.footer-col h5{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.5);margin:0 0 12px;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:14px;}
.footer-bottom{margin-top:32px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:rgba(255,255,255,.5);}

/* galerie réalisations */
.realisations-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.realisation-item{position:relative;margin:0;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--grey);aspect-ratio:1/1;}
.realisation-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s var(--ease);}
.realisation-item:hover img{transform:scale(1.05);}
.realisation-item figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 12px 10px;font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:500;letter-spacing:.01em;color:#fff;background:linear-gradient(to top,rgba(15,23,20,.78),rgba(15,23,20,0));}
@media(max-width:900px){.realisations-gallery{grid-template-columns:repeat(2,1fr);gap:10px;}}
@media(max-width:540px){.realisation-item figcaption{font-size:10px;padding:20px 10px 8px;}}