:root{
  --red:#e11d2b; --red-2:#ff4757; --ink:#150809; --ink-2:#1f0a0c;
  --cream:#fbf6f4; --muted:#a58a88; --line:rgba(255,255,255,.14);
  --serif:"Fraunces",serif; --sans:"Inter",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:var(--sans);background:var(--ink);color:var(--cream);-webkit-font-smoothing:antialiased;overflow:hidden}
a{color:inherit;text-decoration:none}

.glow{position:fixed;border-radius:50%;filter:blur(160px);pointer-events:none;z-index:0}
.g1{width:640px;height:640px;background:var(--red);opacity:.28;top:-160px;right:-120px;animation:pulse 7s ease-in-out infinite}
.g2{width:520px;height:520px;background:#7a0d16;opacity:.35;bottom:-180px;left:-140px;animation:pulse 9s ease-in-out infinite 1s}
@keyframes pulse{50%{opacity:.5;transform:scale(1.12)}}

.topbar{position:fixed;top:0;left:0;right:0;z-index:60;display:flex;align-items:center;justify-content:space-between;padding:22px 32px}
.logo{font-family:var(--serif);font-size:20px;font-weight:500;color:#fff}
.top-right{display:flex;align-items:center;gap:20px;font-size:13px}
.live-dot{color:#e6d9d7}
.live-dot::first-letter{color:#22c55e}
.top-phone{color:#fff;font-weight:600}

.progress-rail{position:fixed;top:0;left:0;right:0;height:3px;background:rgba(255,255,255,.08);z-index:70}
.progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--red),var(--red-2));transition:width .5s cubic-bezier(.4,0,.2,1);box-shadow:0 0 12px var(--red)}

.deck{position:relative;height:100vh;width:100%;z-index:2}
.panel{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:110px 24px 120px;opacity:0;visibility:hidden;transform:translateY(40px) scale(.98);transition:opacity .5s ease, transform .5s cubic-bezier(.4,0,.2,1), visibility .5s;background:radial-gradient(1100px 700px at 70% 30%, #350a0e 0%, var(--ink) 62%)}
.panel.active{opacity:1;visibility:visible;transform:none}
.panel.up{transform:translateY(-40px) scale(.98)}
.panel.down{transform:translateY(40px) scale(.98)}
.panel-in{max-width:900px;width:100%}
.panel-in.center{text-align:center;max-width:760px}

.eyebrow{display:inline-block;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--red-2);font-weight:600;margin-bottom:26px}
.eyebrow.ok{color:#4ade80}
.step-tag{display:inline-block;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--red-2);font-weight:600;margin-bottom:22px}

h1{font-family:var(--serif);font-size:clamp(52px,10vw,128px);line-height:.92;font-weight:400;letter-spacing:-.03em;margin-bottom:26px}
h1 em{font-style:italic;color:var(--red)}
h2{font-family:var(--serif);font-size:clamp(34px,6vw,72px);line-height:1;font-weight:400;letter-spacing:-.02em;margin-bottom:32px}
h2 em{font-style:italic;color:var(--red)}
.sub{font-size:clamp(16px,2vw,20px);line-height:1.55;color:#e6d9d7;max-width:600px;margin:0 auto 38px}
.center .sub{margin-left:auto;margin-right:auto}
.sub.small{font-size:15px;margin-bottom:28px;color:var(--muted)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 28px;border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;border:0;font-family:var(--sans);transition:all .2s ease}
.btn-xl{padding:18px 40px;font-size:17px}
.btn-block{width:100%;border-radius:16px}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 12px 40px rgba(225,29,43,.45)}
.btn-primary:hover:not(:disabled){background:#c8121f;transform:translateY(-2px);box-shadow:0 18px 54px rgba(225,29,43,.6)}
.btn-primary:disabled{opacity:.7;cursor:default}

.reassure{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;margin-top:34px;color:var(--muted);font-size:14px}
.scroll-hint{margin-top:48px;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);opacity:.7}

/* options */
.options{display:grid;gap:14px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}
.opt{text-align:left;background:rgba(255,255,255,.04);border:1.5px solid var(--line);border-radius:18px;padding:22px 22px;cursor:pointer;font-family:var(--sans);color:#fff;transition:all .18s ease;display:flex;flex-direction:column;gap:3px;backdrop-filter:blur(8px)}
.opt .ic{font-size:32px;margin-bottom:10px}
.opt b{font-size:18px;font-weight:600}
.opt i{font-style:normal;font-size:13px;color:var(--muted)}
.opt.sm{align-items:center;justify-content:center;text-align:center;font-size:18px;font-weight:600;padding:26px 18px}
.opt:hover{border-color:var(--red);background:rgba(225,29,43,.12);transform:translateY(-3px)}
.opt.sel{border-color:var(--red);background:rgba(225,29,43,.2);box-shadow:0 0 0 3px rgba(225,29,43,.25)}

/* priorité */
.priority-display{font-family:var(--serif);font-size:clamp(44px,8vw,88px);font-weight:500;color:#fff;font-style:italic;margin-bottom:8px}
.slider-box{max-width:520px;margin:20px auto 40px}
input[type=range]{-webkit-appearance:none;width:100%;height:5px;background:rgba(255,255,255,.15);border-radius:999px;outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:30px;height:30px;border-radius:50%;background:var(--red);cursor:pointer;box-shadow:0 6px 18px rgba(225,29,43,.6);border:4px solid #fff}
input[type=range]::-moz-range-thumb{width:30px;height:30px;border-radius:50%;background:var(--red);cursor:pointer;border:4px solid #fff}
.ticks{display:flex;justify-content:space-between;margin-top:14px;font-size:13px;color:var(--muted)}

/* résultat */
.est{font-family:var(--serif);font-size:clamp(64px,14vw,130px);font-weight:500;color:#fff;line-height:1;letter-spacing:-.03em;margin:8px 0 18px}
.est small{font-size:.26em;color:var(--red-2);font-style:italic;vertical-align:super}
.est-tags{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:22px}
.est-tags span{background:rgba(255,255,255,.06);border:1px solid var(--line);padding:7px 14px;border-radius:999px;font-size:13px;font-weight:500}
.lead{max-width:480px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.lead .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.lead input{width:100%;background:rgba(255,255,255,.05);border:1.5px solid var(--line);color:#fff;padding:15px 16px;border-radius:12px;font-size:15px;font-family:var(--sans)}
.lead input::placeholder{color:var(--muted)}
.lead input:focus{outline:2px solid var(--red);border-color:var(--red)}
.restart{margin-top:24px;background:none;border:0;color:var(--muted);font-size:14px;cursor:pointer;font-family:var(--sans)}
.restart:hover{color:#fff}

/* nav flottante */
.deck-nav{position:fixed;right:28px;bottom:28px;z-index:60;display:flex;flex-direction:column;align-items:center;gap:10px}
.nav-est{background:rgba(0,0,0,.4);backdrop-filter:blur(10px);border:1px solid var(--line);padding:8px 14px;border-radius:999px;font-size:13px;font-weight:700;color:#fff;order:-1}
.nav-btn{width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.06);border:1px solid var(--line);color:#fff;font-size:20px;cursor:pointer;backdrop-filter:blur(10px);transition:all .18s}
.nav-btn:hover{background:var(--red);border-color:var(--red);transform:scale(1.06)}

@media (max-width:820px){
  .topbar{padding:18px 20px}
  .live-dot{display:none}
  .grid-2,.grid-3{grid-template-columns:1fr 1fr}
  .lead .row{grid-template-columns:1fr}
  .panel{padding:96px 20px 120px}
  .deck-nav{right:16px;bottom:16px}
  .reassure{gap:14px;font-size:13px}
}