:root{
  --carbon:#07080b;--carbon-2:#0d1016;--carbon-3:#121720;--ice:#43b4ff;--ice-bright:#86d2ff;
  --ice-deep:#1f7fbf;--chrome:#eef2f6;--chrome-2:#aeb9c5;--steel:#7d8896;--steel-dim:#717c89;
  --hazard:#ff3b30;--hazard-2:#ff8a1e;--line:rgba(132,152,178,.14);--line-2:rgba(132,152,178,.24);
  --line-ice:rgba(67,180,255,.34);--mono:'JetBrains Mono',ui-monospace,monospace;
  --disp:'Saira',system-ui,sans-serif;--body:'Inter',system-ui,sans-serif;--wrap:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--body);background:var(--carbon);color:var(--chrome);line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;z-index:-2;background:
  radial-gradient(70% 45% at 50% 0%,rgba(31,127,191,.18),transparent 70%),
  repeating-linear-gradient(135deg,rgba(255,255,255,.012) 0 1px,transparent 1px 4px)}
a{color:inherit;text-decoration:none} img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--ice);outline-offset:3px;border-radius:2px}
.wrap{width:min(100% - 2.2rem,var(--wrap));margin-inline:auto}
.skip{position:fixed;top:-60px;left:12px;z-index:200;padding:.65rem 1rem;background:var(--ice);color:#03131e;transition:top .2s}
.skip:focus{top:12px}
.top{border-bottom:1px solid var(--line);background:rgba(7,8,11,.9)}
.top .wrap{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:1rem;font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;color:var(--steel)}
.top a{color:var(--ice-bright);font-weight:700;min-height:36px;display:flex;align-items:center}
.nav{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);background:rgba(7,8,11,.9);backdrop-filter:blur(14px)}
.nav .wrap{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:1.2rem}
.brand img{width:72px;height:51px;object-fit:contain;filter:drop-shadow(0 0 12px rgba(67,180,255,.25))}
.nav-links{display:flex;align-items:center;gap:1.3rem;list-style:none}
.nav-links a{font-family:var(--disp);font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.05em;color:var(--chrome-2);padding:.7rem .2rem}
.nav-links a:hover{color:var(--ice-bright)}
.nav-call{min-height:44px;padding:.65rem 1rem;display:inline-flex;align-items:center;background:linear-gradient(135deg,var(--hazard),var(--hazard-2));font-family:var(--disp);font-weight:700;text-transform:uppercase;font-size:.8rem;clip-path:polygon(7px 0,100% 0,100% calc(100% - 7px),calc(100% - 7px) 100%,0 100%,0 7px)}
.hero{position:relative;padding:clamp(4rem,9vw,7.5rem) 0 clamp(3.5rem,7vw,6rem);overflow:hidden;border-bottom:1px solid var(--line)}
.hero::after{content:"";position:absolute;width:55vw;height:32vw;right:-12vw;top:0;border-radius:50%;background:radial-gradient(circle,rgba(67,180,255,.22),transparent 68%);filter:blur(40px);pointer-events:none}
.hero .wrap{position:relative;z-index:1}
.crumbs{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;color:var(--steel);margin-bottom:1.4rem}
.crumbs a{color:var(--ice-bright)}
.badge{display:inline-flex;align-items:center;gap:.55rem;padding:.45rem .75rem;border:1px solid var(--line-ice);font-family:var(--mono);font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;color:var(--ice-bright);margin-bottom:1.3rem}
.badge.hot{border-color:rgba(255,138,30,.45);color:#ffc078;background:rgba(255,138,30,.06)}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor;box-shadow:0 0 12px currentColor}
.hero h1{max-width:18ch;font-family:var(--disp);font-size:clamp(2.35rem,7vw,5rem);line-height:1;text-transform:uppercase;letter-spacing:.005em;background:linear-gradient(180deg,var(--chrome),#94a6b8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{max-width:64ch;margin-top:1.4rem;color:var(--chrome-2);font-size:clamp(1rem,1.6vw,1.18rem)}
.actions{display:flex;align-items:center;flex-wrap:wrap;gap:.8rem;margin-top:2rem}
.btn{min-height:48px;padding:.85rem 1.3rem;display:inline-flex;align-items:center;justify-content:center;font-family:var(--disp);font-weight:700;text-transform:uppercase;font-size:.86rem;letter-spacing:.04em;border:1px solid transparent;clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px)}
.btn-primary{background:linear-gradient(135deg,var(--ice),var(--ice-deep));color:#021018}
.btn-urgent{background:linear-gradient(135deg,var(--hazard),var(--hazard-2));color:#fff}
.btn-ghost{border-color:var(--line-2);background:rgba(255,255,255,.025)}
.quick{border-bottom:1px solid var(--line);background:rgba(255,255,255,.018)}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.quick-item{padding:1.1rem;text-align:center;border-right:1px solid var(--line)}
.quick-item:last-child{border-right:0}
.quick-item strong{display:block;font-family:var(--disp);text-transform:uppercase;color:var(--ice-bright)}
/* variante urgence (page dépannage) : mêmes chiffres en orange, comme le pôle 02 de l'accueil */
.quick.hot .quick-item strong{color:var(--hazard-2)}
.quick-item span{font-size:.78rem;color:var(--steel)}
.section{padding:clamp(3.5rem,7vw,6rem) 0;border-bottom:1px solid var(--line)}
.section.alt{background:rgba(255,255,255,.015)}
.section-head{max-width:720px;margin-bottom:2.2rem}
.eyebrow{font-family:var(--mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.18em;color:var(--ice)}
.section h2{font-family:var(--disp);font-size:clamp(1.8rem,4vw,3rem);line-height:1.08;text-transform:uppercase;margin:.75rem 0;color:var(--chrome)}
.section-head p,.copy{color:var(--steel);font-size:1rem}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.grid.two{grid-template-columns:repeat(2,1fr)}
.panel{padding:1.5rem;background:linear-gradient(180deg,var(--carbon-3),var(--carbon-2));border:1px solid var(--line);clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px)}
.panel h3{font-family:var(--disp);font-size:1.15rem;text-transform:uppercase;margin-bottom:.5rem}
.panel p{color:var(--steel);font-size:.92rem}
.panel .price{display:block;margin-top:1rem;padding-top:.8rem;border-top:1px solid var(--line);font-family:var(--mono);color:var(--ice-bright);font-weight:700}
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.step{counter-increment:step;padding:1.4rem;border:1px solid var(--line);background:rgba(255,255,255,.015)}
.step::before{content:"0" counter(step);display:block;font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;color:var(--ice);margin-bottom:.7rem}
.step h3{font-family:var(--disp);text-transform:uppercase;font-size:1rem;margin-bottom:.4rem}
.step p{color:var(--steel);font-size:.88rem}
.notice{margin-top:1.4rem;padding:1.1rem 1.2rem;border:1px solid var(--line-ice);background:rgba(67,180,255,.055);color:var(--chrome-2)}
.notice strong{color:var(--ice-bright);text-transform:uppercase}
.notice a,.panel p a{color:var(--ice-bright);text-decoration:underline;text-decoration-color:rgba(134,210,255,.45);text-underline-offset:.2em}
.notice a:hover,.panel p a:hover{color:#fff;text-decoration-color:var(--ice)}
/* encadré d'avertissement : orange, conformément au sens de la classe .hot */
.notice.hot{border-color:rgba(255,138,30,.35);background:rgba(255,138,30,.06)}
.notice.hot strong{color:var(--hazard-2)}
.notice.hot a{color:#ffc078;text-decoration-color:rgba(255,192,120,.45)}
.notice.hot a:hover{color:#fff;text-decoration-color:var(--hazard-2)}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:1rem 0}
.faq summary{cursor:pointer;list-style:none;font-family:var(--disp);font-weight:700;text-transform:uppercase;color:var(--chrome);padding:.35rem 2rem .35rem 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:.3rem;color:var(--ice)}
.faq details[open] summary::after{content:"−"}
.faq p{padding:.65rem 2rem 0 0;color:var(--steel)}
.cta{padding:clamp(3rem,6vw,5rem) 0;background:radial-gradient(60% 100% at 50% 100%,rgba(31,127,191,.18),transparent 70%)}
.cta-box{display:flex;align-items:center;justify-content:space-between;gap:2rem;padding:2rem;border:1px solid var(--line-ice);background:rgba(67,180,255,.05)}
/* variante urgence (page dépannage) */
.cta-box.hot{border-color:rgba(255,138,30,.35);background:rgba(255,138,30,.06)}
.cta h2{font-family:var(--disp);text-transform:uppercase;font-size:clamp(1.5rem,3vw,2.2rem)}
.cta p{color:var(--steel);margin-top:.3rem}
.footer{padding:2.5rem 0 5.5rem;border-top:1px solid var(--line);background:#05060a}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:2rem}
.footer img{width:85px;margin-bottom:.8rem}
.footer p,.footer a{display:block;color:var(--steel);font-size:.86rem;margin:.35rem 0}
.footer a:hover{color:var(--ice-bright)}
.footer h2{font-family:var(--mono);font-size:.68rem;text-transform:uppercase;letter-spacing:.12em;color:var(--chrome-2);margin-bottom:.8rem}
.mobile-actions{position:fixed;left:0;right:0;bottom:0;z-index:80;display:none;grid-template-columns:1.2fr 1fr;gap:.45rem;padding:.5rem;background:rgba(7,8,11,.96);border-top:1px solid var(--line)}
.mobile-actions a{min-height:52px;display:flex;align-items:center;justify-content:center;text-align:center;padding:.5rem;font-family:var(--disp);font-weight:700;text-transform:uppercase;font-size:.76rem;clip-path:polygon(7px 0,100% 0,100% calc(100% - 7px),calc(100% - 7px) 100%,0 100%,0 7px)}
.mobile-actions .call{background:linear-gradient(135deg,var(--hazard),var(--hazard-2))}
.mobile-actions .quote{background:linear-gradient(135deg,var(--ice),var(--ice-deep));color:#021018}
@media(max-width:850px){.grid,.grid.two{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr}.nav-links{display:none}.quick-grid{grid-template-columns:1fr 1fr}.quick-item:nth-child(2){border-right:0}.quick-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.cta-box{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}}
@media(max-width:620px){.top .wrap span{display:none}.hero{padding-top:3.2rem}.hero h1{font-size:clamp(2.2rem,13vw,3.4rem)}.actions .btn{width:100%}.grid,.grid.two,.steps{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.mobile-actions{display:grid}body{padding-bottom:68px}.footer{padding-bottom:2.5rem}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}