:root{--lime:#b6d400;--black:#101210;--charcoal:#191c19;--soft:#f4f6f1;--text:#171917;--muted:#6d736c;--line:#dfe4dc;--white:#fff;--radius:16px;--shadow:0 18px 55px rgba(0,0,0,.13)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Arial,sans-serif;color:var(--text);background:#fff;line-height:1.55}a{text-decoration:none;color:inherit}.container{width:min(1180px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(16,18,16,.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}.nav-wrap{height:84px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand img{width:208px;display:block}.main-nav{display:flex;align-items:center;gap:24px;color:#f8faf6;font-size:14px;font-weight:600}.main-nav a:not(.btn){padding:28px 0 24px;border-bottom:3px solid transparent}.main-nav a.active,.main-nav a:not(.btn):hover{color:var(--lime);border-color:var(--lime)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 19px;border-radius:8px;font-weight:800;font-size:14px;transition:.2s}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--lime);color:#111}.btn-outline{border:1px solid rgba(255,255,255,.35);color:#fff;background:rgba(0,0,0,.2)}.nav-cta{padding:12px 16px}.menu-toggle{display:none;background:none;border:0;color:white;font-size:28px}.hero{min-height:650px;position:relative;display:flex;align-items:center;background:radial-gradient(circle at 75% 40%,rgba(182,212,0,.17),transparent 28%),linear-gradient(112deg,#0e100e 0%,#171a17 52%,#2a3028 100%);overflow:hidden}.hero:after{content:"";position:absolute;right:-8%;bottom:-22%;width:650px;height:650px;border:1px solid rgba(182,212,0,.22);border-radius:50%;box-shadow:0 0 0 100px rgba(182,212,0,.025),0 0 0 220px rgba(182,212,0,.018)}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.36),transparent)}.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 300px;align-items:center;gap:80px}.hero-copy{max-width:790px;color:#fff}.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.17em;text-transform:uppercase}.eyebrow:before{content:"";width:36px;height:2px;background:var(--lime)}h1{font-size:58px;line-height:1.02;letter-spacing:-.045em;margin:18px 0 22px}h1 span{color:#fff}.hero p{font-size:18px;color:#d8ddd6;max-width:700px}.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:32px}.experience-card{background:rgba(20,22,20,.78);border:1px solid rgba(255,255,255,.12);box-shadow:var(--shadow);padding:32px;border-radius:18px;color:#fff}.experience-card strong{display:block;color:var(--lime);font-size:48px;line-height:1}.experience-card span{display:block;font-weight:800;margin:8px 0 14px}.experience-card small{color:#b9c0b7}.trust-strip{margin-top:-44px;position:relative;z-index:5}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);background:white;border-radius:16px;box-shadow:var(--shadow);overflow:hidden}.trust-grid article{padding:25px 23px;display:flex;gap:15px;border-right:1px solid var(--line)}.trust-grid article:last-child{border:0}.trust-grid .icon{flex:0 0 42px;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:rgba(182,212,0,.15);color:#6c7d00;font-weight:900}.trust-grid h3{font-size:14px;margin:0 0 5px}.trust-grid p{font-size:12px;color:var(--muted);margin:0}.section{padding:95px 0}.dark{background:var(--black);color:white;margin-top:58px}.section-heading{max-width:720px;margin-bottom:42px}.section-heading.centered{text-align:center;margin-left:auto;margin-right:auto}.section-heading.centered .eyebrow:before{display:none}.section h2{font-size:42px;line-height:1.08;letter-spacing:-.035em;margin:12px 0}.section-heading p,.lead{color:#777f76}.dark .section-heading p{color:#aeb5ac}.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.service-card{background:#202420;border:1px solid rgba(255,255,255,.08);border-radius:14px;overflow:hidden;transition:.25s}.service-card:hover{transform:translateY(-5px);border-color:rgba(182,212,0,.4)}.service-visual{height:120px;background:linear-gradient(135deg,#323932,#151815);position:relative}.service-visual:after{content:"";position:absolute;inset:22px;border:1px solid rgba(182,212,0,.36);border-radius:9px}.v2{background:linear-gradient(135deg,#2e352c,#1d221d)}.v3{background:linear-gradient(135deg,#242a24,#343b33)}.v4{background:linear-gradient(135deg,#3b4039,#171a17)}.v5{background:linear-gradient(135deg,#222720,#41483f)}.v6{background:linear-gradient(135deg,#3a4138,#20251f)}.service-body{padding:24px}.service-body span{color:var(--lime);font-size:12px;font-weight:800}.service-body h3{font-size:22px;margin:7px 0}.service-body p{color:#aeb5ac;font-size:14px;margin:0}.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px;align-items:start}.benefits{display:grid;grid-template-columns:1fr 1fr;gap:18px}.benefits>div{padding:28px;border:1px solid var(--line);border-radius:12px}.benefits b{color:var(--lime);font-size:12px}.benefits h3{margin:7px 0}.benefits p{color:var(--muted);font-size:14px;margin:0}.quote-section{background:var(--soft)}.quote-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:65px}.quote-copy h2{font-size:43px}.contact-card{margin-top:32px;padding:25px;background:var(--black);border-left:4px solid var(--lime);border-radius:10px;color:#fff;display:flex;flex-direction:column;gap:7px}.contact-card a{color:var(--lime);font-weight:700}.quote-form{background:white;border:1px solid var(--line);box-shadow:0 15px 40px rgba(0,0,0,.05);padding:30px;border-radius:14px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}label{font-size:12px;font-weight:700;display:flex;flex-direction:column;gap:7px;margin-bottom:16px}input,select,textarea{width:100%;font:inherit;border:1px solid #d6dbd3;background:#fbfcfa;border-radius:7px;padding:13px;outline:0}input:focus,select:focus,textarea:focus{border-color:var(--lime);box-shadow:0 0 0 3px rgba(182,212,0,.12)}textarea{resize:vertical}.form-note{font-size:11px;color:var(--muted);margin:12px 0 0}.footer{background:#0b0d0b;color:#cdd2cb;padding-top:62px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:50px}.footer img{width:200px;margin-bottom:18px}.footer h4{color:#fff;margin:0 0 16px}.footer a,.footer span{display:block;font-size:13px;margin:7px 0}.footer a:hover{color:var(--lime)}.footer p{max-width:320px;font-size:13px;color:#969d94}.footer-bottom{border-top:1px solid #272b27;margin-top:45px;padding:20px 0;font-size:12px;color:#747b72}
@media(max-width:960px){.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:84px;left:0;right:0;background:#111411;padding:22px 20px;flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a:not(.btn){padding:8px 0;border:0}.hero{min-height:620px}.hero-grid{grid-template-columns:1fr}.experience-card{display:none}h1{font-size:46px}.trust-grid{grid-template-columns:1fr 1fr}.trust-grid article:nth-child(2){border-right:0}.services-grid{grid-template-columns:1fr 1fr}.split,.quote-grid{grid-template-columns:1fr;gap:45px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.container{width:min(100% - 28px,1180px)}.brand img{width:170px}.nav-wrap{height:74px}.main-nav{top:74px}.hero{min-height:590px;padding:58px 0}.hero-grid{gap:0}h1{font-size:38px}.hero p{font-size:16px}.hero-actions .btn{width:100%}.trust-strip{margin-top:-25px}.trust-grid{grid-template-columns:1fr}.trust-grid article{border-right:0;border-bottom:1px solid var(--line)}.section{padding:70px 0}.section h2,.quote-copy h2{font-size:34px}.services-grid,.benefits,.form-grid,.footer-grid{grid-template-columns:1fr}.footer-grid{gap:28px}}
/* Multi-page additions */
.page-hero{background:linear-gradient(115deg,#0e100e,#242a22);color:#fff;padding:105px 0 80px;position:relative;overflow:hidden}.page-hero:after{content:"";position:absolute;right:-150px;top:-170px;width:500px;height:500px;border-radius:50%;border:1px solid rgba(182,212,0,.22);box-shadow:0 0 0 90px rgba(182,212,0,.025)}.page-hero .container{position:relative;z-index:1}.page-hero h1{font-size:50px;margin-bottom:16px}.page-hero p{max-width:720px;color:#cbd1c8;font-size:17px}.breadcrumbs{font-size:12px;color:#9ca49a;margin-bottom:14px}.breadcrumbs a{color:var(--lime)}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.content-card{border:1px solid var(--line);border-radius:14px;padding:30px;background:#fff}.content-card h3{margin-top:0}.content-card p{color:var(--muted)}.service-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.service-detail{border:1px solid var(--line);border-radius:14px;padding:26px;background:white}.service-detail b{color:var(--lime);font-size:12px}.service-detail h3{font-size:21px;margin:7px 0}.service-detail p{color:var(--muted);font-size:14px}.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.project-card{border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#fff}.project-placeholder{height:230px;background:linear-gradient(135deg,#252b24,#454d42);position:relative}.project-placeholder:after{content:"Photo chantier à ajouter";position:absolute;inset:0;display:grid;place-items:center;color:#d7dccf;font-size:12px;letter-spacing:.08em;text-transform:uppercase}.project-card div:last-child{padding:20px}.project-card h3{margin:0 0 6px}.project-card p{margin:0;color:var(--muted);font-size:13px}.legal{max-width:850px}.legal h2{font-size:28px;margin-top:36px}.legal p,.legal li{color:var(--muted)}.cta-band{background:var(--black);color:#fff;border-radius:18px;padding:36px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-band h2{margin:0 0 8px;font-size:30px}.cta-band p{margin:0;color:#aeb5ac}.contact-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:36px}.contact-info{background:var(--black);color:#fff;border-left:4px solid var(--lime);padding:30px;border-radius:12px}.contact-info a{display:block;color:var(--lime);font-weight:700;margin:7px 0}.contact-info p{color:#b8bfb5}.map-placeholder{height:260px;border-radius:12px;background:linear-gradient(135deg,#e9ece5,#f7f8f5);border:1px solid var(--line);display:grid;place-items:center;text-align:center;color:var(--muted);padding:20px}.active-page{color:var(--lime)!important;border-color:var(--lime)!important}
@media(max-width:960px){.service-list,.gallery-grid,.content-grid,.contact-layout{grid-template-columns:1fr 1fr}.page-hero h1{font-size:42px}.cta-band{align-items:flex-start;flex-direction:column}}
@media(max-width:640px){.service-list,.gallery-grid,.content-grid,.contact-layout{grid-template-columns:1fr}.page-hero{padding:75px 0 60px}.page-hero h1{font-size:36px}.cta-band{padding:26px}}

/* V3 — visuel ISOPLAC validé */
.hero-photo{background-image:linear-gradient(90deg,rgba(8,10,8,.88) 0%,rgba(8,10,8,.72) 43%,rgba(8,10,8,.20) 72%,rgba(8,10,8,.08) 100%),url("assets/isoplac-hero-equipe.png");background-size:cover;background-position:center 28%;}
.hero-photo:after{display:none}.hero-photo .hero-overlay{background:linear-gradient(90deg,rgba(0,0,0,.12),transparent 65%)}
.hero-photo .hero-copy{max-width:700px;text-shadow:0 2px 18px rgba(0,0,0,.28)}
.hero-photo .experience-card{background:rgba(12,14,12,.82);backdrop-filter:blur(8px)}
.featured-visual{width:100%;display:block;border-radius:16px;box-shadow:var(--shadow);border:1px solid var(--line)}
@media(max-width:640px){.hero-photo{background-position:42% center;background-image:linear-gradient(90deg,rgba(8,10,8,.90),rgba(8,10,8,.58)),url("assets/isoplac-hero-equipe.png")}}

/* V4 — optimisation mise en ligne */
.hero-photo{background-image:linear-gradient(90deg,rgba(8,10,8,.88) 0%,rgba(8,10,8,.72) 43%,rgba(8,10,8,.20) 72%,rgba(8,10,8,.08) 100%),url("assets/isoplac-hero-equipe.webp");}
.consent{display:grid;grid-template-columns:auto 1fr;align-items:start;gap:10px;font-weight:500;font-size:11px;color:var(--muted);margin:4px 0 18px}.consent input{width:17px;height:17px;margin-top:2px}.consent a{text-decoration:underline;font-weight:700}.skip-link{position:absolute;left:-9999px;top:auto}.skip-link:focus{left:12px;top:12px;z-index:9999;background:#fff;color:#111;padding:10px;border-radius:6px}
@media(max-width:640px){.hero-photo{background-image:linear-gradient(90deg,rgba(8,10,8,.90),rgba(8,10,8,.58)),url("assets/isoplac-hero-equipe.webp")}}