/* ImpôtFrontalier — identité « la frontière » : papier crème, encre marine, vermillon, ligne pointillée.
   Titres : Instrument Serif ; texte : Manrope (fichiers woff2 OFL dans assets/fonts/). */
@font-face{font-family:"Instrument Serif";src:url(/assets/fonts/instrument-serif-latin-400-normal.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Instrument Serif";src:url(/assets/fonts/instrument-serif-latin-400-italic.woff2) format("woff2");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:Manrope;src:url(/assets/fonts/manrope-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:Manrope;src:url(/assets/fonts/manrope-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:Manrope;src:url(/assets/fonts/manrope-latin-700-normal.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:Manrope;src:url(/assets/fonts/manrope-latin-800-normal.woff2) format("woff2");font-weight:800;font-display:swap}
:root{--encre:#14213D;--encre-2:#3B4560;--papier:#FBF8F3;--sable:#F3EEE5;--blanc:#fff;--ligne:#E4DDD0;--rouge:#D9482B;--rouge-f:#B83A20;--rouge-l:#FCE9E4;--vert:#1F8A4C;--vert-l:#E3F4EA;--ambre:#8A5A12;--ambre-l:#FDF3E1;--r:16px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:Manrope,system-ui,-apple-system,sans-serif;color:var(--encre);background:var(--papier);line-height:1.6;font-size:17px}
h1,h2,h3{font-family:"Instrument Serif",Georgia,serif;font-weight:400;line-height:1.12;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2.3rem,6vw,4rem)}
h2{font-size:clamp(1.8rem,4vw,2.6rem)}
h3{font-size:1.45rem}
h1 em,h2 em{color:var(--rouge)}
a{color:var(--rouge-f)}
img{max-width:100%;height:auto}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
.etroit{max-width:760px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:99}
/* En-tête */
.haut{position:sticky;top:0;z-index:30;background:rgba(251,248,243,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--ligne)}
.haut .wrap{display:flex;align-items:center;justify-content:space-between;min-height:66px;gap:12px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.12rem;letter-spacing:-.02em;color:var(--encre);text-decoration:none}
.logo svg{width:32px;height:32px;flex:none}
.logo b{color:var(--rouge);font-weight:800}
.nav{display:flex;gap:22px;align-items:center}
.nav a{color:var(--encre-2);text-decoration:none;font-weight:600;font-size:.94rem}
.nav a:hover,.nav a[aria-current]{color:var(--rouge-f)}
.burger{display:none;background:none;border:1.5px solid var(--encre);border-radius:999px;padding:6px 14px;font:inherit;font-weight:700;color:var(--encre)}
@media(max-width:860px){.burger{display:block}.nav{display:none;position:absolute;top:66px;left:0;right:0;background:var(--papier);flex-direction:column;align-items:flex-start;padding:16px 20px;border-bottom:1px solid var(--ligne)}.nav.ouvert{display:flex}}
/* Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;font:inherit;font-weight:700;border-radius:999px;padding:14px 26px;background:var(--rouge);color:#fff;text-decoration:none;transition:transform .15s,box-shadow .15s;line-height:1.2;text-align:center}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 22px -10px rgba(217,72,43,.65)}
.btn.ghost{background:transparent;color:var(--encre);border:1.5px solid var(--encre)}
.btn.encre{background:var(--encre)}
.btn.petit{padding:9px 18px;font-size:.92rem}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
/* Héros */
.heros{padding:56px 0 34px}
.heros .grille{display:grid;grid-template-columns:1.25fr .9fr;gap:44px;align-items:center}
@media(max-width:860px){.heros .grille{grid-template-columns:1fr}}
.surtitre{display:inline-block;font-size:.76rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--rouge-f);margin-bottom:14px}
.chapo{font-size:1.14rem;color:var(--encre-2);max-width:600px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 16px}
.atouts{display:flex;gap:16px;flex-wrap:wrap;font-size:.9rem;color:var(--encre-2);padding:0;margin:0;list-style:none}
.atouts li::before{content:"✓ ";color:var(--vert);font-weight:800}
.compte{background:var(--encre);color:#fff;border-radius:22px;padding:28px;position:relative}
.compte .etiquette{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;opacity:.75;font-weight:700}
.compte .grand{font-family:"Instrument Serif",serif;font-size:4.4rem;line-height:1;margin:8px 0}
.compte .grand small{font-size:1.4rem;opacity:.75}
.compte p{margin:.4em 0 0;opacity:.9;font-size:.95rem}
.tampon{position:absolute;top:-13px;right:18px;background:var(--rouge);color:#fff;font-weight:800;font-size:.74rem;padding:6px 12px;border-radius:999px;transform:rotate(3deg)}
.frontiere{height:12px;background:repeating-linear-gradient(90deg,var(--encre) 0 18px,transparent 18px 30px);opacity:.13;margin-top:36px}
/* Sections */
section{padding:66px 0}
.sable{background:var(--sable)}
.cartes{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px}
.cartes.trois{grid-template-columns:repeat(3,1fr)}
@media(max-width:900px){.cartes,.cartes.trois{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.cartes,.cartes.trois{grid-template-columns:1fr}}
.carte{background:var(--blanc);border:1px solid var(--ligne);border-radius:var(--r);padding:22px}
.carte .n{font-family:"Instrument Serif",serif;font-size:2.3rem;color:var(--rouge);line-height:1}
.carte h3{font-family:Manrope,sans-serif;font-weight:800;font-size:1.02rem;margin:.5em 0 .3em;letter-spacing:0}
.carte p{margin:0;color:var(--encre-2);font-size:.95rem}
.carte.vedette{border:2px solid var(--rouge)}
.prix{font-family:"Instrument Serif",serif;font-size:2.8rem;line-height:1;margin:10px 0}
.carte ul{padding-left:18px;color:var(--encre-2);font-size:.94rem}
table{width:100%;border-collapse:collapse;font-size:.95rem;margin:16px 0}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--ligne);vertical-align:top}
th{background:var(--sable);font-weight:700}
td.nb,th.nb{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.tableau{overflow-x:auto}
details{background:var(--blanc);border:1px solid var(--ligne);border-radius:14px;padding:16px 20px;margin-bottom:10px}
summary{cursor:pointer;font-weight:700;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";float:right;color:var(--rouge);font-weight:800}
details[open] summary::after{content:"–"}
details p{color:var(--encre-2);margin:.7em 0 0}
.note{border-radius:12px;padding:14px 16px;font-size:.94rem;margin:16px 0}
.note.rouge{background:var(--rouge-l)}.note.vert{background:var(--vert-l)}.note.ambre{background:var(--ambre-l);color:#4d3408}
.enbref{background:var(--blanc);border-left:4px solid var(--rouge);border-radius:0 12px 12px 0;padding:16px 18px;margin:18px 0 26px}
.enbref strong:first-child{display:block;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--rouge-f);margin-bottom:4px}
/* Articles */
.fil{font-size:.86rem;color:var(--encre-2);margin:22px 0 0}
.fil a{color:var(--encre-2)}
.article{padding:18px 20px 60px}
.article h2{margin-top:1.6em}
.article .meta{color:var(--encre-2);font-size:.88rem}
.article li{margin-bottom:6px}
.cta-fin{background:var(--encre);color:#fff;border-radius:20px;padding:26px;margin:36px 0}
.cta-fin h2{margin-top:0;color:#fff}
.cta-fin p{opacity:.9}
.liste-articles{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media(max-width:700px){.liste-articles{grid-template-columns:1fr}}
.liste-articles a{display:block;background:var(--blanc);border:1px solid var(--ligne);border-radius:var(--r);padding:20px;text-decoration:none;color:var(--encre)}
.liste-articles a:hover{border-color:var(--rouge)}
.liste-articles strong{font-family:"Instrument Serif",serif;font-weight:400;font-size:1.4rem;line-height:1.2;display:block;margin-bottom:6px}
.liste-articles span{color:var(--encre-2);font-size:.92rem}
/* Simulateur */
.sim{background:var(--blanc);border:1px solid var(--ligne);border-radius:24px;box-shadow:0 30px 60px -42px rgba(20,33,61,.4);overflow:hidden}
.sim-tete{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;border-bottom:1px solid var(--ligne);gap:12px;flex-wrap:wrap}
.progression{display:flex;gap:6px}
.progression i{width:30px;height:6px;border-radius:9px;background:var(--ligne)}
.progression i.on{background:var(--rouge)}
.sim-corps{padding:28px 24px}
.etape{display:none}.etape.active{display:block;animation:apparait .3s ease}
@keyframes apparait{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.champs{display:grid;grid-template-columns:1fr 1fr;gap:16px 22px}
@media(max-width:640px){.champs{grid-template-columns:1fr}}
.champ label,.champ .lib{display:block;font-weight:700;font-size:.92rem;margin-bottom:6px}
.champ .aide{font-size:.82rem;color:var(--encre-2);margin-top:4px}
.champ input,.champ select,.champ textarea{width:100%;font:inherit;font-size:16px;padding:12px 14px;border:1.5px solid var(--ligne);border-radius:12px;background:#fff;color:var(--encre)}
.champ input:focus,.champ select:focus{outline:none;border-color:var(--encre)}
.pleine{grid-column:1/-1}
.choix{display:flex;flex-wrap:wrap;gap:8px}
.choix label{cursor:pointer;margin:0}
.choix input{position:absolute;opacity:0;pointer-events:none}
.choix span{display:inline-block;padding:10px 16px;border:1.5px solid var(--ligne);border-radius:999px;font-weight:600;font-size:.93rem;background:#fff}
.choix input:checked+span{background:var(--encre);color:#fff;border-color:var(--encre)}
.choix input:focus-visible+span{outline:2px solid var(--rouge);outline-offset:2px}
.nav-etapes{display:flex;justify-content:space-between;gap:12px;margin-top:26px;flex-wrap:wrap}
.depot{border:2px dashed var(--ligne);border-radius:16px;padding:22px;text-align:center;background:var(--papier)}
.depot.survol{border-color:var(--rouge);background:var(--rouge-l)}
.depot input{display:none}
.lu{font-size:.88rem;margin-top:10px;text-align:left}
.options{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:18px 0}
@media(max-width:720px){.options{grid-template-columns:1fr}}
.option{border:1.5px solid var(--ligne);border-radius:14px;padding:18px;position:relative;background:#fff}
.option.meilleure{border-color:var(--vert);background:var(--vert-l)}
.option.meilleure::after{content:"Recommandé";position:absolute;top:-11px;left:14px;background:var(--vert);color:#fff;font-size:.72rem;font-weight:800;padding:3px 10px;border-radius:999px}
.option .t{font-weight:800}
.option .v{font-family:"Instrument Serif",serif;font-size:2.1rem;line-height:1.1;margin:6px 0}
.option p{margin:0;font-size:.86rem;color:var(--encre-2)}
.gain{background:var(--encre);color:#fff;border-radius:18px;padding:22px 24px;display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
.gain .v{font-family:"Instrument Serif",serif;font-size:3.1rem;line-height:1}
.payer{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--sable);border-radius:16px;padding:20px;margin-top:20px;flex-wrap:wrap}
.payer .prix{margin:4px 0}
.consentement{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;margin-top:14px}
.consentement input{margin-top:5px;width:18px;height:18px;flex:none}
/* Dossier livré */
.dossier{border:1.5px solid var(--encre);border-radius:14px;padding:24px;background:#fff;font-size:.96rem}
.dossier h3{border-bottom:2px solid var(--encre);padding-bottom:8px}
.dossier h4{margin:20px 0 6px;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--rouge-f)}
.case{display:inline-block;min-width:1.4em;text-align:center;border:1.5px solid var(--encre);border-radius:4px;font-weight:800;margin-right:6px}
.recopier{background:var(--sable);border-left:4px solid var(--rouge);padding:12px 14px;white-space:pre-wrap;font-family:ui-monospace,Menlo,monospace;font-size:.86rem}
/* Pied */
.pied{background:var(--encre);color:#C9CEDB;padding:46px 0 28px;font-size:.9rem;margin-top:40px}
.pied a{color:#fff}
.pied .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}
@media(max-width:720px){.pied .cols{grid-template-columns:1fr}}
.pied h2{font-family:Manrope,sans-serif;color:#fff;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;margin:0 0 10px}
.pied ul{list-style:none;padding:0;margin:0}.pied li{margin-bottom:6px}
.legal{border-top:1px solid rgba(255,255,255,.16);margin-top:26px;padding-top:16px;font-size:.8rem;opacity:.85}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--encre);color:#fff;padding:12px 20px;border-radius:999px;font-weight:600;font-size:.92rem;opacity:0;transition:opacity .3s;z-index:60;pointer-events:none;max-width:90vw}
.toast.on{opacity:1}
.cache{display:none!important}
.barre-mobile{display:none}
@media(max-width:700px){.barre-mobile{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:25;padding:10px 14px;background:rgba(251,248,243,.96);border-top:1px solid var(--ligne)}.barre-mobile .btn{width:100%}body.avec-barre{padding-bottom:72px}}