:root{--bg-dark: #081120;--bg-light: #ffffff;--bg-electric: linear-gradient(135deg, #0f1e46 0%, #1d4ed8 55%, #60a5fa 100%);--text: #dce7f5;--text-dark: #0f172a;--muted: #94a3b8;--border: rgba(255, 255, 255, .12);--card: rgba(255, 255, 255, .06);--primary: #4f8cff;--primary-strong: #2563eb;--shadow: 0 20px 60px rgba(0, 0, 0, .25);--radius: 20px;--container: 1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg-dark);color:var(--text);line-height:1.6}body.menu-open{overflow:hidden}img,video{max-width:100%;height:auto;display:block;border-radius:var(--radius)}a{color:inherit;text-decoration:none}p{margin-top:0}ul{padding-left:1.2rem}.container{width:min(100% - 2rem,var(--container));margin-inline:auto}.narrow{width:min(100% - 2rem,820px);margin-inline:auto}.section{padding:6rem 0}.section-light{background:#fff;color:var(--text-dark)}.section-dark{background:radial-gradient(circle at top right,rgba(79,140,255,.25),transparent 30%),var(--bg-dark)}.section-electric{background:var(--bg-electric);color:#fff}.immersive{position:relative;overflow:hidden}.immersive:before{content:"";position:absolute;inset:-20% auto auto -10%;width:420px;height:420px;background:#ffffff1f;filter:blur(80px);border-radius:50%}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 0}.site-header{position:sticky;top:0;z-index:100;padding:1rem 0 0;background:transparent}.nav-shell{position:relative;display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:1.25rem;padding:1rem 1.4rem;border-radius:24px;background:linear-gradient(180deg,#ffffff14,#ffffff08),#050e1fb8;border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:0 18px 50px #00000047,inset 0 1px #ffffff14;overflow:hidden}.nav-shell:before{content:"";position:absolute;inset:-40% auto auto 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1.15rem;border-radius:999px;color:#fff;font-weight:700;background:linear-gradient(135deg,#60a5fa38,#2563eb6b);border:1px solid rgba(125,211,252,.28);box-shadow:0 10px 30px #2563eb38,inset 0 1px #ffffff14;transition:transform .25s ease,box-shadow .25s ease,background .25s ease}.nav-cta:hover{transform:translateY(-1px)}.burger-btn{display:none;position:relative;z-index:110;width:52px;height:52px;border:1px solid rgba(255,255,255,.12);border-radius:16px;background:#ffffff0f;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);padding:0;cursor:pointer}.burger-btn span{position:absolute;left:14px;width:24px;height:2px;border-radius:999px;background:#fff;transition:transform .25s ease,opacity .25s ease,top .25s ease}.burger-btn span:nth-child(1){top:17px}.burger-btn span:nth-child(2){top:25px}.burger-btn span:nth-child(3){top:33px}.burger-btn.is-open span:nth-child(1){top:25px;transform:rotate(45deg)}.burger-btn.is-open span:nth-child(2){opacity:0}.burger-btn.is-open span:nth-child(3){top:25px;transform:rotate(-45deg)}.mobile-menu{display:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.95rem 1.2rem;border-radius:999px;font-weight:700;transition:transform .2s ease,opacity .2s ease,background .2s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-strong));box-shadow:0 10px 30px #2563eb59}.btn-secondary{border:1px solid rgba(255,255,255,.18);background:#ffffff0f}.section-light .btn-secondary{border-color:#0f172a1f;background:#0f172a0a}.hero{min-height:90vh;display:flex;align-items:center;padding:4rem 0}.hero-grid,.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2rem;align-items:center}.media-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2rem;align-items:start}.media-grid>div{display:flex;flex-direction:column}.media-grid video,.media-grid img{width:100%;flex:1;object-fit:cover;border-radius:var(--radius);aspect-ratio:16/9}.hero-content{max-width:680px}.hero h1{font-size:clamp(2.6rem,6vw,4.8rem);line-height:1.05;margin:0 0 1rem}.hero p{font-size:1.08rem;max-width:60ch}.hero-actions,.cta-actions{display:flex;flex-wrap:wrap;gap:1rem;margin-top:1.5rem}.hero-media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.hero-media img{border-radius:var(--radius);width:100%;height:auto;object-fit:cover}.eyebrow{display:inline-block;margin-bottom:.75rem;color:#8fb8ff;font-weight:700;text-transform:uppercase;letter-spacing:.1em;font-size:1rem}.section-light .eyebrow{color:var(--primary-strong)}.section-electric .eyebrow{color:#ffffffbf}.card-grid{display:grid;gap:1.5rem}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{padding:1.6rem;border-radius:var(--radius);background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow)}.section-light .card{background:#fff;border:1px solid rgba(15,23,42,.08);box-shadow:0 20px 40px #0f172a0f}.section-heading{max-width:780px;margin-bottom:2.2rem}.stats-grid,.partners{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.stat,.partner-badge,.cta-box{border-radius:var(--radius);border:1px solid rgba(255,255,255,.16);background:#ffffff14;backdrop-filter:blur(10px)}.stat{padding:1.5rem}.stat-icon{display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:14px;background:#4f8cff1f;border:1px solid rgba(79,140,255,.22);color:var(--primary);margin-bottom:1rem}.stat-sub{display:block;margin-top:.25rem;font-size:.88rem;font-weight:400;color:#ffffff80;line-height:1.4}.stat-highlights{margin-top:.75rem;padding:0;list-style:none;display:flex;flex-direction:column;gap:.3rem;font-size:.88rem;color:#ffffffbf;line-height:1.5}.stat-highlights 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#4f8cff26}.select-wrapper{position:relative;display:block}.select-wrapper:after{content:"";position:absolute;right:1rem;top:50%;transform:translateY(-50%);width:1rem;height:1rem;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-size:contain;pointer-events:none;transition:transform .2s}select{width:100%;padding:.95rem 2.75rem .95rem 1rem;border-radius:14px;border:1px solid rgba(255,255,255,.2);background:#081128bf;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);color:#e2e8f0;font-size:.95rem;font-weight:500;letter-spacing:.01em;appearance:none;-webkit-appearance:none;cursor:pointer;transition:border-color .2s,box-shadow .2s,background .2s}select option{background:#0f1c35;color:#e2e8f0;font-weight:400}select:hover{border-color:#fff6;background:#081128e6}select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4f8cff26}.field-invalid,input.field-invalid,.select-wrapper.field-invalid select{border-color:#f87171!important;box-shadow:0 0 0 3px #f8717126!important}.select-wrapper.field-invalid:after{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E")}.required-star{color:var(--primary);margin-left:.15em}.cf-turnstile{margin-bottom:.5rem}.hp-field{position:absolute;left:-9999px;opacity:0;pointer-events:none}.form-message{min-height:1.5rem;font-weight:600;font-size:.9rem;padding:.5rem 0}.form-message[data-type=success]{color:#86efac}.form-message[data-type=error]{color:#fca5a5}.site-footer{background:#07101f;border-top:1px solid rgba(255,255,255,.08)}.site-footer nav{display:flex;flex-wrap:wrap;gap:1.5rem}.partners-text{margin-top:1.5rem;color:var(--muted);font-size:.9rem}.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}.reveal.is-visible{opacity:1;transform:translateY(0)}.solutions-grid{gap:1.6rem}.solution-card{position:relative;overflow:hidden;min-height:320px;color:#fff;border:1px solid rgba(96,165,250,.22);background-color:#081120;box-shadow:0 18px 45px #0f1e4647,0 0 0 1px #60a5fa0f,inset 0 1px #ffffff0a;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.solution-card:hover{transform:translateY(-4px);border-color:#60a5fa59;box-shadow:0 24px 60px #0f1e4657,0 0 30px #2563eb24,inset 0 1px #ffffff0f}.solution-card:before{content:"";position:absolute;inset:0;background-position:center;background-size:cover;background-repeat:no-repeat;transform:scale(1.02);transition:transform .35s ease}.solution-card:hover:before{transform:scale(1.06)}.solution-card__overlay{position:absolute;inset:0;background:linear-gradient(180deg,#0811202e,#081120ad 45%,#081120eb),linear-gradient(135deg,#2563eb3d,#60a5fa1f 45%,#0811201f);z-index:1}.solution-card__content{position:relative;z-index:2}.solution-card__content h3,.solution-card__content p,.solution-card__content li,.solution-card__content strong{color:#fff}.solution-card__content ul{margin-bottom:1rem}.solution-card--solar:before{background-image:url(/images/solutions/photovoltaique.jpg)}.solution-card--pac:before{background-image:url(/images/solutions/pompeachaleur.jpg)}.solution-card--ballon:before{background-image:url(/images/solutions/Ballon-thermodynamique.jpg)}.solution-card--geo:before{background-image:url(/images/solutions/geothermie.jpeg)}.solution-card--solaro:before{background-image:url(/images/solutions/solarothermie.jpg);background-position:center top}.solution-card--solaro .solution-card__overlay{background:linear-gradient(180deg,#0811200d,#08112073,#081120e0),linear-gradient(135deg,#2563eb1f,#60a5fa0f 45%,#0811200f)}.solution-card--full{grid-column:1 / -1}@media(max-width:980px){.hero-grid,.contact-grid,.media-grid,.grid-2,.grid-4,.stats-grid,.partners,.form-row{grid-template-columns:1fr}.hero-media{order:-1}.footer-inner,.cta-box{flex-direction:column;align-items:flex-start}.hero{min-height:auto}.nav-shell{grid-template-columns:1fr auto;gap:1rem;padding:1rem 1.1rem}.desktop-nav,.desktop-cta{display:none}.burger-btn{display:block}.mobile-menu{display:block;position:fixed;inset:0;z-index:90;background:#020817b8;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);opacity:0;pointer-events:none;transition:opacity .25s ease}.mobile-menu.is-open{opacity:1;pointer-events:auto}.mobile-menu-inner{position:absolute;top:6.2rem;left:1rem;right:1rem;padding:1.4rem;border-radius:24px;background:linear-gradient(180deg,#ffffff14,#ffffff08),#050e1feb;border:1px solid rgba(255,255,255,.1);box-shadow:0 18px 50px #00000047,inset 0 1px #ffffff14;transform:translateY(-12px) scale(.98);opacity:0;transition:transform .25s ease,opacity .25s ease}.mobile-menu.is-open .mobile-menu-inner{transform:translateY(0) scale(1);opacity:1}.mobile-nav{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1rem}.mobile-nav a{display:block;padding:1rem .2rem;font-size:1.2rem;font-weight:600;color:#f8fbff;border-bottom:1px solid rgba(255,255,255,.08)}.mobile-cta{width:100%;justify-content:center}}