:root{--ink:#0B1A26;--ink2:#123447;--paper:#F4F7F6;--teal:#14B8AE;--teal-d:#0B8F87;--fil:#FFC247;--fil-d:#E8A41C;--pink:#FF6B9D;--blue:#4FD1FF;--mist:#DDE8E7;--white:#fff;--muted:#4A6070}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Instrument Sans',system-ui,-apple-system,'Segoe UI',sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;font-size:17px}
h1,h2,h3{font-family:'Bricolage Grotesque','Instrument Sans',system-ui,sans-serif;line-height:1.12;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2.2rem,6vw,3.6rem);font-weight:800}
h2{font-size:clamp(1.6rem,4vw,2.2rem);font-weight:700}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1em;max-width:62ch}
a{color:var(--teal-d)}
img,svg{max-width:100%;height:auto;display:block}
:focus-visible{outline:3px solid var(--fil);outline-offset:3px;border-radius:4px}
.wrap{width:min(1100px,92%);margin-inline:auto}
section{padding:clamp(2.5rem,7vw,5rem) 0}

/* En-tête */
header.top{background:var(--ink);color:#fff;position:sticky;top:0;z-index:10}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding:.8rem 0}
.brand{display:flex;align-items:center;gap:.6rem;color:#fff;text-decoration:none;font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:1.2rem}
.brand svg{width:30px;height:30px}
nav ul{display:flex;gap:.3rem;list-style:none;margin:0;padding:0;flex-wrap:wrap}
nav a{color:#fff;text-decoration:none;padding:.45rem .8rem;border-radius:999px;font-weight:500;font-size:.98rem}
nav a:hover{background:rgba(255,255,255,.12)}
nav a[aria-current="page"]{background:var(--fil);color:var(--ink);font-weight:700}

/* Boutons */
.btn{display:inline-block;padding:.85rem 1.4rem;border-radius:10px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font:inherit;font-weight:700;transition:transform .15s}
.btn:active{transform:scale(.97)}
.btn-main{background:var(--fil);color:var(--ink)}
.btn-main:hover{background:#ffc94d}
.btn-alt{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-alt:hover{background:rgba(255,255,255,.1)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--teal-d)}
.actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.5rem}

/* Héros */
.hero{position:relative;overflow:hidden;background:linear-gradient(150deg,var(--ink) 0%,var(--ink2) 60%,#0E2A3A 100%);color:#fff;padding:clamp(2.5rem,8vw,5.5rem) 0}
.hero::before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:
  radial-gradient(420px 320px at 85% 15%,rgba(20,184,174,.35),transparent 70%),
  radial-gradient(360px 280px at 100% 90%,rgba(255,194,71,.18),transparent 70%);
  pointer-events:none}
.scene{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;z-index:0;opacity:.4;pointer-events:none}
.scene svg{width:100%;height:100%;display:block}
.hero .wrap{position:relative;z-index:2;display:grid;gap:2rem;align-items:center}
@media(min-width:800px){.hero .wrap{grid-template-columns:1.2fr .8fr}}
.hero p{color:#c9d7dc;font-size:1.15rem}
.hero .art-wrap{position:relative;max-width:340px;margin-inline:auto;padding:1.2rem}
.hero .art-wrap::before{content:"";position:absolute;inset:8%;background:radial-gradient(circle,rgba(20,184,174,.35),transparent 70%);filter:blur(18px);z-index:0}
.hero .art{position:relative;z-index:1;max-width:320px;margin-inline:auto}
.hero.small{padding:clamp(2rem,6vw,4rem) 0}

/* Animations de scène (légères, en boucle) */
@keyframes sweep{from{transform:translateX(-26px)}to{transform:translateX(26px)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes spinrev{to{transform:rotate(-360deg)}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@keyframes pulse{0%,100%{opacity:.45}50%{opacity:1}}
@keyframes turn{0%,100%{transform:rotate(-16deg)}50%{transform:rotate(16deg)}}
@keyframes blink{0%,46%,54%,100%{opacity:1}50%{opacity:.55}}
.nozzle{animation:sweep 5s ease-in-out infinite alternate}
.spin{transform-box:fill-box;transform-origin:center;animation:spin 7s linear infinite}
.spin-rev{transform-box:fill-box;transform-origin:center;animation:spinrev 9s linear infinite}
.spin-fast{transform-box:fill-box;transform-origin:center;animation:spin 3.2s linear infinite}
.float1{animation:floaty 3.1s ease-in-out infinite}
.float2{animation:floaty 3.6s ease-in-out infinite .35s}
.float3{animation:floaty 3.3s ease-in-out infinite .7s}
.pulse{animation:pulse 2.2s ease-in-out infinite}
.pulse2{animation:pulse 2.2s ease-in-out infinite .6s}
.turn{transform-box:fill-box;transform-origin:85% 15%;animation:turn 1.7s ease-in-out infinite}
.blink{animation:blink 3.4s ease-in-out infinite}
@keyframes driftx{0%,100%{transform:translateX(-16px)}50%{transform:translateX(16px)}}
@keyframes drifty{0%,100%{transform:translateY(0)}50%{transform:translateY(-18px)}}
@keyframes rise{0%{transform:translateY(14px);opacity:0}30%{opacity:.9}100%{transform:translateY(-120px);opacity:0}}
@keyframes dashmove{to{stroke-dashoffset:-200}}
@keyframes spinslow{to{transform:rotate(360deg)}}
.driftx{transform-box:fill-box;animation:driftx 7s ease-in-out infinite}
.drifty{transform-box:fill-box;animation:drifty 6s ease-in-out infinite}
.drifty2{transform-box:fill-box;animation:drifty 7.5s ease-in-out infinite 1s}
.drifty3{transform-box:fill-box;animation:drifty 5.5s ease-in-out infinite .5s}
.rise{animation:rise 6s ease-in infinite}
.dashline{stroke-dasharray:8 10;animation:dashmove 5s linear infinite}
.spin-slow{transform-box:fill-box;transform-origin:center;animation:spinslow 40s linear infinite}
.spin-slow-rev{transform-box:fill-box;transform-origin:center;animation:spinslow 32s linear infinite reverse}
@media(prefers-reduced-motion:reduce){.nozzle,.spin,.spin-rev,.spin-fast,.float1,.float2,.float3,.pulse,.pulse2,.turn,.blink,.driftx,.drifty,.drifty2,.drifty3,.rise,.dashline,.spin-slow,.spin-slow-rev{animation:none}html{scroll-behavior:auto}}

/* Blocs */
.grid2{display:grid;gap:1.5rem}
@media(min-width:760px){.grid2{grid-template-columns:1fr 1fr}}
.grid3{display:grid;gap:1.2rem}
@media(min-width:760px){.grid3{grid-template-columns:repeat(3,1fr)}}
.panel{background:var(--white);border-radius:18px;padding:1.8rem;border-left:8px solid var(--teal)}
.panel.fil{border-left-color:var(--fil)}
.panel ul{padding-left:1.2rem;margin:0 0 1.2rem}
.panel li{margin-bottom:.3rem}
.band{background:var(--mist)}
.steps{list-style:none;padding:0;margin:0;display:grid;gap:1rem;counter-reset:s}
@media(min-width:760px){.steps.cols3{grid-template-columns:repeat(3,1fr)}.steps.cols4{grid-template-columns:repeat(4,1fr)}}
.steps li{counter-increment:s;background:var(--white);border-radius:14px;padding:1.2rem 1.2rem 1.2rem 1.2rem}
.steps li::before{content:counter(s);display:inline-grid;place-items:center;width:2rem;height:2rem;border-radius:50%;background:var(--ink);color:var(--fil);font-weight:800;margin-bottom:.6rem}
.steps strong{display:block;font-family:'Bricolage Grotesque',sans-serif;font-size:1.1rem}
.tile{background:var(--white);border-radius:16px;overflow:hidden}
.tile .cap{padding:1rem 1.2rem}
.tile .cap p{margin:0;color:var(--muted);font-size:.95rem}
.note{font-size:.9rem;color:var(--muted)}
.tag{display:inline-block;background:var(--mist);border-radius:999px;padding:.2rem .8rem;margin:0 .3rem .4rem 0;font-size:.95rem}

/* Formulaires */
form{background:var(--white);border-radius:18px;padding:clamp(1.2rem,4vw,2rem);display:grid;gap:1rem}
@media(min-width:700px){form .two{display:grid;grid-template-columns:1fr 1fr;gap:1rem}}
label{display:grid;gap:.35rem;font-weight:600;font-size:.98rem}
input,select,textarea{font:inherit;padding:.75rem .85rem;border:2px solid #c3d3d3;border-radius:10px;background:#fbfdfd;color:var(--ink);width:100%}
input:focus,select:focus,textarea:focus{border-color:var(--teal);outline:none;box-shadow:0 0 0 3px rgba(15,124,124,.25)}
textarea{min-height:130px;resize:vertical}
.hidden{display:none}

/* Pied de page */
footer{background:var(--ink);color:#c9d7dc;padding:2.5rem 0;font-size:.95rem}
footer .wrap{display:grid;gap:1.5rem}
@media(min-width:760px){footer .wrap{grid-template-columns:1.3fr 1fr 1fr}}
footer a{color:#fff}
footer h3{color:#fff;font-size:1.05rem}
footer p{margin:0 0 .4rem}