@font-face{font-family:"Proxima Nova";src:url("../fonts/proximanova-regular.otf") format("opentype");font-weight:400}
@font-face{font-family:"Proxima Nova";src:url("../fonts/proximanova-bold.otf") format("opentype");font-weight:700}
@font-face{font-family:"Orbitron";src:url("../fonts/orbitron-medium.otf") format("opentype");font-weight:500}
@font-face{font-family:"Orbitron";src:url("../fonts/orbitron-bold.otf") format("opentype");font-weight:700}

/* Charte : #53ADE2 bleu · #2C3466 marine · #242C34 ardoise · #777B82 · #B8BAC3 */
:root{
  --blue:#53ADE2;--navy:#2C3466;--slate:#242C34;--grey:#777B82;--grey-2:#B8BAC3;
  --radius:10px;--maxw:1180px;
  --grad:linear-gradient(90deg,#53ADE2 0%,#2C3466 100%);
  --display:"Orbitron","Eurostile",sans-serif;--body:"Proxima Nova",system-ui,sans-serif;
}
:root[data-theme="dark"]{
  --bg:#1B2129;--bg-2:#242C34;--panel:#242C34;--panel-2:#2B343E;--line:#334050;
  --text:#EEF1F5;--muted:#B8BAC3;--dim:#777B82;
  --head:#FFFFFF;--btn:#53ADE2;--btn-text:#0F1E2B;--btn-h:#6FBDEA;
  --shadow:0 30px 70px -40px rgba(0,0,0,.9);
}
:root[data-theme="light"]{
  --bg:#FFFFFF;--bg-2:#F3F5F8;--panel:#FFFFFF;--panel-2:#F3F5F8;--line:#DDE1E7;
  --text:#242C34;--muted:#5F6670;--dim:#9AA0A8;
  --head:#242C34;--btn:#2C3466;--btn-text:#FFFFFF;--btn-h:#232A54;
  --shadow:0 24px 60px -32px rgba(44,52,102,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--body);-webkit-font-smoothing:antialiased;transition:background .25s,color .25s}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:4px}
h1,h2,h3{margin:0;color:var(--head)}
h1,h2{font-family:var(--display);font-weight:500;letter-spacing:.01em}
h1{font-size:clamp(1.7rem,3.6vw,2.6rem);line-height:1.2}
h2{font-size:clamp(1.25rem,2.2vw,1.7rem);line-height:1.3}
h3{font-family:var(--body);font-weight:700;font-size:1.1rem}
p{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--display);font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--blue);font-weight:500}
.muted{color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:6px;font-weight:700;font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:transform .15s,background .15s,border-color .15s,box-shadow .15s;font-family:var(--body)}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--btn);color:var(--btn-text)}
.btn-primary:hover{background:var(--btn-h)}
.btn-ghost{border-color:var(--line);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-sm{padding:9px 16px;font-size:.85rem}

/* signature : la diagonale de la charte */
.diag{position:relative}
.diag::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:10px;background:var(--grad);clip-path:polygon(0 100%,100% 0,100% 100%)}

header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand img{height:52px;display:block}
:root[data-theme="dark"] .logo-light,:root[data-theme="light"] .logo-dark{display:none}
.navlinks{display:flex;gap:28px;font-size:.92rem;font-weight:700;color:var(--muted)}
.navlinks a:hover{color:var(--blue)}
.navcta{display:flex;gap:10px;align-items:center}
.theme{background:transparent;border:1px solid var(--line);color:var(--muted);width:38px;height:38px;border-radius:6px;display:grid;place-items:center;cursor:pointer}
.theme:hover{color:var(--blue);border-color:var(--blue)}
.theme svg{width:18px;height:18px}
:root[data-theme="dark"] .i-moon,:root[data-theme="light"] .i-sun{display:none}
@media (max-width:860px){.navlinks{display:none}}

.hero{position:relative;isolation:isolate;padding:80px 0 72px;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
@media (max-width:960px){.hero{grid-template-columns:1fr;padding-top:44px}}
.wm{position:absolute;right:-6%;top:-12%;width:520px;opacity:.06;pointer-events:none;z-index:-1;filter:grayscale(1)}
.hero>div{position:relative;z-index:1}
:root[data-theme="dark"] .wm{filter:brightness(4) grayscale(1);opacity:.045}
.hero h1 em{font-style:normal;color:var(--blue)}
.hero .lead{font-size:1.1rem;color:var(--muted);max-width:52ch;margin:22px 0 28px}
.hero-ctas{display:flex;gap:12px;flex-wrap:wrap}
.trust{display:flex;gap:28px;margin-top:40px;flex-wrap:wrap}
.trust div{font-size:.78rem;color:var(--dim)}
.trust b{display:block;color:var(--head);font-family:var(--display);font-size:1rem;font-weight:500;margin-bottom:2px}

.cfg{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.cfg::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.cfg-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.cfg-head .tabs{display:flex;gap:4px;background:var(--bg);padding:4px;border-radius:6px}
.tabs button{background:transparent;border:0;color:var(--muted);padding:6px 14px;border-radius:4px;font:inherit;font-size:.85rem;font-weight:700;cursor:pointer}
.tabs button[aria-selected="true"]{background:var(--blue);color:#0F1E2B}
.slider{display:grid;grid-template-columns:110px 1fr 90px;align-items:center;gap:14px;padding:12px 0;border-top:1px solid var(--line)}
.slider:first-of-type{border-top:0}
.slider label{font-size:.85rem;color:var(--muted)}
.slider output{font-size:.9rem;text-align:right;font-weight:700;color:var(--head)}
input[type=range]{width:100%;accent-color:var(--blue);background:transparent}
.cfg-sum{margin-top:16px;padding:16px;background:var(--bg);border-radius:8px;display:grid;grid-template-columns:1fr auto;gap:8px;align-items:end}
.cfg-sum .price{font-family:var(--display);font-size:1.7rem;font-weight:700;line-height:1;color:var(--blue)}
.cfg-sum .price small{font-family:var(--body);font-size:.85rem;color:var(--muted);font-weight:400}
.cfg-inc{font-size:.8rem;color:var(--dim);margin-top:8px}
.cfg-actions{display:flex;gap:10px;margin-top:14px}
.cfg-actions .btn{flex:1;justify-content:center}
.cfg-note{font-size:.75rem;color:var(--dim);margin-top:10px;text-align:center}

section{padding:88px 0}
.sec-head{max-width:64ch;margin-bottom:40px}
.sec-head h2{margin:12px 0 14px}
.grid{display:grid;gap:18px}
.g3{grid-template-columns:repeat(3,1fr)}
@media (max-width:900px){.g3{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.g3{grid-template-columns:1fr}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:border-color .2s,box-shadow .2s}
.card:hover{border-color:var(--blue);box-shadow:var(--shadow)}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:.95rem}
.offer{display:flex;flex-direction:column}
.offer .spec{font-size:.85rem;color:var(--muted);margin:14px 0 18px;line-height:1.9}
.offer .spec span{color:var(--head);font-weight:700}
.offer .from{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}
.offer .from b{font-family:var(--display);font-size:1.05rem;font-weight:500;color:var(--blue)}
.tag{display:inline-block;font-family:var(--display);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;font-weight:500;padding:5px 9px;border-radius:4px;background:rgba(83,173,226,.14);color:var(--blue)}
.tag.amber{background:rgba(232,176,75,.14);color:#E8B04B}

.stack{background:var(--navy);color:#fff;padding:80px 0;position:relative}
.stack::before{content:"";position:absolute;left:0;right:0;top:-1px;height:10px;background:var(--bg);clip-path:polygon(0 0,100% 0,0 100%)}
.stack h2{color:#fff}
.stack .eyebrow{color:#9ED4F2}
.stack .muted{color:#C3CBE6}
.stack-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
@media (max-width:900px){.stack-grid{grid-template-columns:1fr}}
.stack-list{margin:22px 0 0;padding:0;list-style:none;color:#C3CBE6;font-size:.95rem;display:grid;gap:10px}
.stack-list b{color:#fff}
.term{background:#1F2650;border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:20px;font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-size:.82rem;line-height:1.75;color:#B9C2E0;overflow:auto}
.term .k{color:#53ADE2}.term .v{color:#fff}.term .c{color:#7E88B8}

.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
@media (max-width:760px){.facts{grid-template-columns:1fr 1fr}}
.facts div{background:var(--panel);padding:24px}
.facts b{display:block;font-family:var(--display);font-size:1.25rem;font-weight:500;color:var(--blue);margin-bottom:4px}
.facts span{font-size:.85rem;color:var(--muted)}
.certs{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.cert{border:1px solid var(--line);border-radius:8px;padding:12px 16px;font-size:.8rem;background:var(--panel)}
.cert b{display:block;color:var(--head);font-family:var(--display);font-size:.85rem;font-weight:500;margin-bottom:2px}
.cert span{color:var(--dim)}

.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
@media (max-width:900px){.split{grid-template-columns:1fr}}
.quote{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:0 8px 8px 0;padding:20px 22px;margin-bottom:14px}
.quote p{font-size:.95rem}
.quote footer{margin-top:12px;font-size:.82rem;color:var(--muted)}
.quote footer b{color:var(--head)}

.contact{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:40px}
@media (max-width:860px){.contact{grid-template-columns:1fr;padding:28px}}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:.82rem;color:var(--muted)}
.field input,.field select,.field textarea{background:var(--bg);border:1px solid var(--line);color:var(--text);border-radius:6px;padding:11px 12px;font:inherit;font-size:.95rem}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 3px rgba(83,173,226,.18)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.phone{font-family:var(--display);font-size:1.3rem;font-weight:500;display:block;margin:16px 0 8px;color:var(--blue)}

footer.site{background:var(--slate);color:#B8BAC3;padding:48px 0;font-size:.85rem;position:relative}
footer.site::before{content:"";position:absolute;left:0;right:0;top:0;height:6px;background:var(--grad)}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}
@media (max-width:760px){.foot{grid-template-columns:1fr 1fr}}
.foot h4{color:#fff;font-family:var(--display);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;margin:0 0 12px;font-weight:500}
.foot a{display:block;padding:3px 0}
.foot a:hover{color:#53ADE2}
.foot img{height:44px;margin-bottom:12px}
.legal{margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.78rem;color:#777B82}