:root{
  --blue:#142c70; --blue-2:#2f56c8; --sky:#3fb6e8;
  --pink:#e6337a; --purple:#7a3fb0; --yellow:#f6b80f; --green:#3a9a45; --green-d:#2b7334;
  --ink:#1f2a44; --muted:#5d6a80; --bg:#fffdf8; --card:#fff; --line:#ece6da;
  --radius:22px; --shadow:0 10px 30px -12px rgba(20,44,112,.25);
}
*{box-sizing:border-box}
html{overflow-x:clip;scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font-family:Nunito,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;font-size:17px;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--blue-2)}
h1,h2,h3{font-family:"Baloo 2",Nunito,sans-serif;line-height:1.1;margin:0 0 .4em;color:var(--blue)}
h2{font-size:clamp(1.9rem,4vw,2.8rem)}
h3{font-size:1.3rem}
:focus-visible{outline:3px solid var(--yellow);outline-offset:3px;border-radius:8px}

/* Topbar */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:20px;padding:12px max(16px,calc((100vw - 1180px)/2));background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{flex:none;display:block}
.brand img{width:150px;height:64px;max-width:none;object-fit:cover}
.nav{display:flex;gap:6px;margin-left:auto}
.nav a{padding:8px 14px;border-radius:999px;text-decoration:none;color:var(--ink);font-weight:700;font-size:.95rem}
.nav a:hover{background:#f1ecff;color:var(--purple)}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 22px;border-radius:999px;border:0;font:800 1rem/1 Nunito,sans-serif;text-decoration:none;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;white-space:nowrap}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px -8px rgba(0,0,0,.35)}
.btn-sm{padding:10px 16px;font-size:.9rem}
.btn-blue{background:var(--blue);color:#fff}
.btn-pink{background:var(--pink);color:#fff}
.btn-purple{background:var(--purple);color:#fff}
.btn-yellow{background:var(--yellow);color:var(--blue)}
.btn-ghost{background:#fff;color:var(--blue);box-shadow:inset 0 0 0 2px var(--blue)}
.btn-dl{background:var(--accent);color:#fff;width:100%;justify-content:center;margin-top:auto}

/* Hero */
.hero{position:relative;isolation:isolate;overflow-x:clip;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;max-width:1180px;margin:0 auto;padding:56px 16px 72px}
.blob{position:absolute;border-radius:50%;filter:blur(50px);opacity:.35;z-index:-1}
.b1{width:340px;height:340px;background:var(--yellow);top:-40px;left:-80px}
.b2{width:300px;height:300px;background:var(--pink);right:-60px;top:40px}
.b3{width:260px;height:260px;background:var(--sky);left:40%;bottom:-40px}
.pill{display:inline-block;margin:0 0 18px;padding:8px 16px;border-radius:999px;background:#fff;box-shadow:var(--shadow);font-weight:800;color:var(--pink);font-size:.9rem;letter-spacing:.02em}
h1{font-size:clamp(2.4rem,5.6vw,4rem)}
.hl{background:linear-gradient(transparent 58%,rgba(246,184,15,.55) 58%);color:var(--purple)}
.intro{font-size:1.15rem;color:var(--muted);max-width:34em}
.facts{list-style:none;display:flex;flex-wrap:wrap;gap:12px;padding:0;margin:24px 0}
.facts li{display:grid;grid-template-columns:auto 1fr;column-gap:10px;align-items:center;padding:12px 16px;border-radius:16px;font-size:.9rem;color:var(--muted);min-width:150px;flex:1}
.facts li span{grid-row:span 2;font-size:1.5rem}
.facts li b{color:var(--ink);font-size:1rem}
.f-blue{background:#e6f3fc}.f-yellow{background:#fff3cf}.f-green{background:#e3f4e3}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.countdown{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:28px}
.countdown div{background:var(--blue);color:#fff;border-radius:14px;padding:8px 14px;text-align:center;min-width:70px}
.countdown b{display:block;font:800 1.6rem/1 "Baloo 2",sans-serif}
.countdown small{font-size:.75rem;opacity:.8}
.countdown p{margin:0 0 0 4px;font-weight:700;color:var(--muted)}
.hero-art{margin:0;position:relative}
.hero-art .zoom{border:0;padding:0;background:none;cursor:zoom-in;border-radius:var(--radius);overflow:hidden;box-shadow:0 30px 60px -20px rgba(20,44,112,.45);transform:rotate(1.5deg);transition:transform .3s;display:block;width:100%}
.hero-art .zoom:hover{transform:rotate(0) scale(1.01)}
.hero-art figcaption{position:absolute;left:-14px;top:-18px;background:var(--pink);color:#fff;font-weight:800;padding:10px 18px;border-radius:14px;transform:rotate(-3deg);box-shadow:var(--shadow)}

/* Callout inscription */
.callout{display:flex;gap:14px;align-items:flex-start;margin-top:22px;padding:16px 18px;border-radius:18px;background:#fff;border-left:6px solid var(--pink);box-shadow:var(--shadow)}
.callout p{margin:0;font-size:.98rem;color:var(--ink)}
.callout b{color:#b81d5c}
.callout-ico{font-size:1.6rem;line-height:1}

/* Sections */
.section{max-width:1180px;margin:0 auto;padding:72px 16px}
.tinted,.tinted-2{max-width:none;padding-left:max(16px,calc((100vw - 1148px)/2));padding-right:max(16px,calc((100vw - 1148px)/2))}
.tinted{background:linear-gradient(180deg,#fff5f9,#f3f0ff)}
.tinted-2{background:linear-gradient(180deg,#eef8ff,#eefaf0)}
.kicker{display:inline-block;font-weight:800;text-transform:uppercase;letter-spacing:.12em;font-size:.8rem;padding:6px 12px;border-radius:8px;margin:0 0 12px}
.k-green{background:#e3f4e3;color:var(--green-d)}.k-pink{background:#ffe1ec;color:#b81d5c}.k-purple{background:#efe4fb;color:var(--purple)}.k-blue{background:#e0ecff;color:var(--blue)}.k-white{background:rgba(255,255,255,.18);color:#fff}
.lead{color:var(--muted);font-size:1.1rem;margin-top:0}

/* Steps */
.steps{list-style:none;padding:0;margin:32px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.steps li{position:relative;background:var(--card);border-radius:var(--radius);padding:28px 24px 24px;box-shadow:var(--shadow);border-top:6px solid var(--c)}
.steps .s1{--c:var(--yellow)}.steps .s2{--c:var(--pink)}.steps .s3{--c:var(--green)}
.steps .num{position:absolute;top:-18px;right:20px;width:44px;height:44px;border-radius:50%;background:var(--c);color:#fff;display:grid;place-items:center;font:800 1.3rem "Baloo 2",sans-serif;box-shadow:var(--shadow)}
.steps .ico{font-size:2rem;display:block;margin-bottom:8px}
.steps p{color:var(--muted);margin:0 0 12px}
.steps a{font-weight:800;text-decoration:none}

/* Filters */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}
.chip{border:2px solid var(--line);background:#fff;border-radius:999px;padding:9px 16px;font:700 .95rem Nunito,sans-serif;color:var(--ink);cursor:pointer;transition:.15s}
.chip:hover{border-color:var(--purple)}
.chip.active{background:var(--purple);border-color:var(--purple);color:#fff}

/* Cards */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{display:flex;flex-direction:column;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s;--accent:var(--blue)}
.card:hover{transform:translateY(-4px)}
.card.is-hidden,.letter.is-hidden{display:none}
.c-yellow{--accent:#d99a00;--soft:#fff3cf}.c-blue{--accent:var(--blue-2);--soft:#e3effd}.c-pink{--accent:var(--pink);--soft:#ffe1ec}.c-green{--accent:var(--green);--soft:#e3f4e3}
.preview{position:relative;border:0;padding:16px;margin:0;background:var(--soft);cursor:zoom-in;aspect-ratio:1/1;display:grid;place-items:center;overflow:hidden}
.preview img{max-height:100%;width:auto;border-radius:10px;box-shadow:0 8px 20px -10px rgba(0,0,0,.4);transition:transform .3s}
.preview:hover img{transform:scale(1.04)}
.eye{position:absolute;bottom:12px;left:50%;transform:translateX(-50%) translateY(8px);opacity:0;background:rgba(20,44,112,.9);color:#fff;font-weight:700;font-size:.85rem;padding:6px 12px;border-radius:999px;transition:.2s}
.preview:hover .eye,.preview:focus-visible .eye{opacity:1;transform:translateX(-50%)}
.card-body{display:flex;flex-direction:column;flex:1;padding:18px 18px 20px}
.card-body p{color:var(--muted);font-size:.95rem;margin:0 0 16px}
.tag{display:inline-block;align-self:flex-start;font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--accent,var(--blue));background:var(--soft,#eef);padding:4px 10px;border-radius:6px;margin-bottom:10px}

/* Letter */
.letter{--soft:#fff3cf;--accent:#a87500;display:flex;align-items:center;gap:24px;margin-top:24px;padding:28px;border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);border:3px dashed var(--yellow)}
.letter-icon{font-size:2.6rem;width:84px;height:84px;flex:none;border-radius:50%;background:#fff3cf;display:grid;place-items:center}
.letter-txt{flex:1}
.letter-txt p{margin:0 0 6px;color:var(--muted)}
.small{font-size:.9rem}

/* Personalize */
.personalize{margin:24px 0;padding:20px 22px;border-radius:var(--radius);background:linear-gradient(120deg,#efe4fb,#ffe1ec)}
.personalize p{margin:0 0 12px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fields label{display:flex;flex-direction:column;gap:6px;font-weight:700;font-size:.9rem}
.fields input{font:600 1rem Nunito,sans-serif;padding:12px 14px;border-radius:12px;border:2px solid #fff;background:#fff;color:var(--ink)}
.fields input:focus{border-color:var(--purple);outline:none}

/* Tabs */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:-2px}
.tab{border:0;background:#f1ecf8;color:var(--purple);font:800 1rem Nunito,sans-serif;padding:14px 20px;border-radius:16px 16px 0 0;cursor:pointer}
.tab.active{background:#fff;box-shadow:0 -4px 12px -6px rgba(0,0,0,.15)}
.panel{background:#fff;border-radius:0 var(--radius) var(--radius) var(--radius);padding:24px;box-shadow:var(--shadow)}
.bubble{background:#f7f5fc;border-radius:18px;padding:20px 22px;margin-bottom:18px;position:relative}
.copy-text{margin:0;white-space:normal}
mark{background:#fff0b3;color:var(--ink);border-radius:4px;padding:0 3px}
mark.filled{background:#d9f2dc}

/* Checklist */
.check-wrap{max-width:720px;background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);margin-top:20px}
.progress{height:14px;border-radius:999px;background:#eef1f6;overflow:hidden}
.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--yellow),var(--pink),var(--purple),var(--sky),var(--green));transition:width .4s}
.progress-label{font-weight:800;color:var(--muted);margin:8px 0 14px}
.checks{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.checks label{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;cursor:pointer;background:#f8f9fc;font-weight:700;transition:.15s}
.checks label:hover{background:#eef4ff}
.checks input{width:22px;height:22px;accent-color:var(--green);flex:none}
.checks input:checked+span{text-decoration:line-through;color:var(--muted)}
.done{margin:16px 0 0;font-weight:800;color:var(--green-d);font-size:1.1rem}

/* Closing */
.closing{position:relative;overflow:hidden;max-width:1148px;margin:72px auto;padding:56px 40px;border-radius:32px;background:linear-gradient(120deg,var(--blue) 0%,var(--purple) 55%,var(--pink) 100%);color:#fff;text-align:center}
.closing h2{color:#fff}
.closing p{max-width:40em;margin:0 auto 24px;opacity:.95;font-size:1.1rem}
.closing::before,.closing::after{content:"";position:absolute;border-radius:50%;opacity:.25}
.closing::before{width:220px;height:220px;background:var(--yellow);top:-80px;left:-60px}
.closing::after{width:180px;height:180px;background:var(--sky);bottom:-70px;right:-40px}
.closing>*{position:relative}

footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;padding:28px max(16px,calc((100vw - 1180px)/2));border-top:6px solid;border-image:linear-gradient(90deg,var(--yellow),var(--pink),var(--purple),var(--sky),var(--green)) 1;color:var(--muted)}
footer strong{color:var(--blue)}

/* Lightbox */
.lightbox{border:0;padding:0;border-radius:20px;max-width:min(92vw,900px);max-height:92vh;background:#fff;overflow:hidden}
.lightbox::backdrop{background:rgba(20,30,60,.75);backdrop-filter:blur(4px)}
.lightbox img{max-height:78vh;width:auto;margin:0 auto}
.lb-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;font-weight:800}
.lb-close{position:absolute;top:10px;right:10px;width:40px;height:40px;border-radius:50%;border:0;background:#fff;box-shadow:var(--shadow);font-size:1.1rem;cursor:pointer}

/* Toast */
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,120px);background:var(--green-d);color:#fff;font-weight:800;padding:14px 22px;border-radius:999px;box-shadow:var(--shadow);transition:transform .3s,opacity .3s,visibility .3s;opacity:0;visibility:hidden;z-index:50;max-width:calc(100vw - 32px);text-align:center}
.toast.show{transform:translate(-50%,0);opacity:1;visibility:visible}

/* Responsive */
@media (max-width:1024px){.grid{grid-template-columns:repeat(2,1fr)}.nav{display:none}.topbar .btn{margin-left:auto}}
@media (max-width:820px){
  .hero{grid-template-columns:1fr;padding-top:32px;gap:40px}
  .steps{grid-template-columns:1fr;gap:28px}
  .letter{flex-direction:column;text-align:center}
  .letter .tag{align-self:center}
  .fields{grid-template-columns:1fr}
  .section{padding:56px 16px}
  .closing{margin:48px 16px;padding:44px 22px}
}
@media (max-width:520px){
  body{font-size:16px}
  .grid{grid-template-columns:1fr}
  .brand img{width:120px;height:52px}
  .hero-art figcaption{font-size:.85rem;left:8px;right:8px;text-align:center}
  .btn{white-space:normal}
  .cta-row .btn{width:100%;justify-content:center}
  .facts li{min-width:100%}
  .tab{flex:1;padding:12px;font-size:.92rem}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Mode intégration (iframe) : pas d'en-tête collant */
.embed .topbar{display:none}
.fields input.missing{border-color:var(--pink);box-shadow:0 0 0 4px rgba(230,51,122,.2)}