:root{
  --ink:#14122b; --ink-2:#3b3760; --muted:#6c6790; --faint:#9b97b8;
  --bg:#f5f4fb; --card:#fff; --line:#e7e5f3; --line-2:#d6d3ec;
  --indigo:#5b3df5; --indigo-d:#4429d6; --indigo-bg:#eee9ff;
  --teal:#0ea5a4; --teal-d:#0b7f7e; --teal-bg:#e2f7f6;
  --amber:#f59e0b;
  --radius:18px; --radius-sm:11px;
  --shadow:0 1px 2px rgba(20,18,43,.06),0 16px 40px -18px rgba(20,18,43,.28);
  --maxw:1080px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:17px;line-height:1.6;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--indigo);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em;font-weight:800}
h1{font-size:clamp(30px,5vw,46px)}h2{font-size:clamp(23px,3vw,31px)}h3{font-size:20px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 18px}
.tnum{font-variant-numeric:tabular-nums}
.skip{position:absolute;left:-9999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:99;border-radius:8px}

/* Header */
.hd{background:rgba(255,255,255,.86);backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:18px;letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand .lg{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--indigo),var(--teal));color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:0 6px 14px -4px rgba(91,61,245,.6)}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:var(--ink-2);font-weight:500;font-size:15px;padding:7px 11px;border-radius:8px}
.nav a:hover{background:var(--bg);color:var(--ink);text-decoration:none}

/* Hero */
.hero{padding:46px 0 6px;text-align:center}
.hero .eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--indigo-d);background:var(--indigo-bg);padding:5px 12px;border-radius:999px;margin-bottom:14px}
.hero p.lead{font-size:19px;color:var(--ink-2);max-width:60ch;margin:8px auto 0}
.crumb{font-size:14px;color:var(--muted);padding:16px 0 0}.crumb a{color:var(--muted)}.crumb span{color:var(--faint)}

/* Simulateur */
.sim{max-width:780px;margin:24px auto 0}
.sim-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.sim-head{display:flex;align-items:center;gap:9px;padding:16px 22px;border-bottom:1px solid var(--line);font-weight:700}
.sim-head .dot{width:9px;height:9px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px var(--teal-bg)}
.sim-body{padding:22px}
.seg{display:inline-flex;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:3px;gap:3px}
.seg label{cursor:pointer}
.seg input{position:absolute;opacity:0;width:0;height:0}
.seg span{display:inline-block;font-size:14px;font-weight:600;color:var(--ink-2);padding:8px 15px;border-radius:8px;transition:.15s}
.seg input:checked+span{background:#fff;color:var(--indigo-d);box-shadow:var(--shadow)}
.seg input:focus-visible+span{outline:2px solid var(--indigo);outline-offset:2px}
.row{display:grid;grid-template-columns:1.2fr 1fr;gap:16px;margin:18px 0 4px}
.fld{display:flex;flex-direction:column;gap:7px}
.fld .lbl{font-size:13px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.amount{display:flex;align-items:center;background:var(--bg);border:2px solid var(--line-2);border-radius:12px;padding:0 14px;transition:.15s}
.amount:focus-within{border-color:var(--indigo);background:#fff;box-shadow:0 0 0 4px var(--indigo-bg)}
.amount input{border:0;background:transparent;font-size:30px;font-weight:800;color:var(--ink);width:100%;padding:12px 0;outline:none;font-variant-numeric:tabular-nums}
.amount .u{font-size:20px;font-weight:700;color:var(--faint);white-space:nowrap}
select,.inp{font-family:inherit;font-size:15px;padding:11px 12px;border:2px solid var(--line-2);border-radius:12px;background:#fff;color:var(--ink);width:100%}
.range{display:flex;align-items:center;gap:10px}
.range input[type=range]{flex:1;accent-color:var(--indigo)}
.range .v{font-weight:700;min-width:42px;text-align:right;font-variant-numeric:tabular-nums}

.result{margin-top:18px;border-top:1px dashed var(--line-2)}
.result[hidden]{display:none}
.big{padding:22px;text-align:center;background:var(--teal-bg);border-bottom:1px solid #c5ebea}
.big .lab{font-size:13px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:#0a6361}
.big .val{font-size:clamp(38px,7.5vw,52px);font-weight:800;color:var(--teal-d);line-height:1.05;margin:4px 0;font-variant-numeric:tabular-nums}
.big .sub{color:var(--ink-2);font-weight:500}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:16px 22px}
.kpi{background:var(--bg);border:1px solid var(--line);border-radius:11px;padding:12px 14px}
.kpi span{font-size:12px;color:#565279;font-weight:600;text-transform:uppercase;letter-spacing:.03em;display:block}
.kpi b{font-size:19px;font-variant-numeric:tabular-nums}
.kpi.hl{background:var(--indigo-bg);border-color:#d9cdff}.kpi.hl b{color:var(--indigo-d)}
.note{font-size:13px;color:var(--muted);padding:0 22px 18px;text-align:center}

/* Sections / contenu */
.block{padding:42px 0}.block.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.prose{max-width:740px}.prose p,.prose li{color:var(--ink-2)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
.step{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px}
.step .n{width:30px;height:30px;border-radius:8px;background:var(--indigo);color:#fff;font-weight:800;display:grid;place-items:center;margin-bottom:8px}
.chips{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:8px}
.chips a{display:flex;justify-content:space-between;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:12px 14px;color:var(--ink);font-weight:600;font-size:15px}
.chips a:hover{border-color:var(--indigo);background:var(--indigo-bg);text-decoration:none}
.chips a b{color:var(--teal-d);font-variant-numeric:tabular-nums}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--indigo);color:#fff;font-weight:700;padding:12px 20px;border-radius:11px}
.btn:hover{background:var(--indigo-d);text-decoration:none}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:10px;overflow:hidden}
.faq summary{cursor:pointer;padding:15px 18px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:"+";color:var(--indigo);font-weight:800;font-size:20px}
.faq details[open] summary::after{content:"–"}.faq .a{padding:0 18px 16px;color:var(--ink-2)}
table.bench{width:100%;border-collapse:collapse;margin:14px 0;font-size:15px}
table.bench th,table.bench td{border:1px solid var(--line);padding:10px 12px;text-align:left}table.bench th{background:var(--bg)}

/* Footer */
.ft{background:var(--ink);color:#c8c4e4;margin-top:46px;padding:34px 0 22px;font-size:15px}
.ft a{color:#fff}.ft .cols{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}
.ft h4{color:#fff;font-size:15px;margin:0 0 10px}.ft nav{display:flex;flex-direction:column;gap:6px}
.ft .legal{border-top:1px solid #2a2750;margin-top:20px;padding-top:14px;color:var(--faint);font-size:13px}

@media(max-width:720px){.nav{display:none}.row{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.chips{grid-template-columns:1fr}.grid2{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto;transition:none!important}}