/* calculsalairebrutnet.com — feuille de style unique (mobile d'abord) */
:root{
  --ink:#0E1E2F; --muted:#526170; --bg:#F4F6F9; --card:#fff; --line:#DDE4EB; --soft:#EAF1F6;
  --primary:#0B3B5C; --primary-2:#155E8C; --net:#0E8A5F; --net-soft:#E3F4EC; --cot:#D5603C; --imp:#E2A62B;
  --radius:16px; --shadow:0 1px 2px rgba(14,30,47,.06),0 8px 24px rgba(14,30,47,.06);
  --font:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--font);overflow-wrap:break-word}
img,svg{max-width:100%}
a{color:var(--primary-2);text-underline-offset:2px}
a:hover{color:var(--primary)}
h1,h2,h3{line-height:1.25;letter-spacing:-.01em;margin:0 0 .5em}
h1{font-size:1.75rem}
h2{font-size:1.3rem;margin-top:.2em}
h3{font-size:1.05rem}
p{margin:0 0 1em}
b,strong{font-weight:650}
.sauter{position:absolute;left:-999px}
.sauter:focus{left:8px;top:8px;background:#fff;padding:8px 12px;z-index:10;border-radius:8px}

/* en-tête */
.tete{background:var(--primary);color:#fff;position:relative;z-index:5}
.tete-in{max-width:1120px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-size:1.05rem;white-space:nowrap}
.logo b{color:#8FD3B6}
.logo:hover{color:#fff}
.menu summary{list-style:none;cursor:pointer;width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:10px}
.menu summary::-webkit-details-marker{display:none}
.menu summary span{display:block;width:22px;height:2px;background:#fff;border-radius:2px}
.menu[open] summary{background:rgba(255,255,255,.12)}
.menu nav{position:absolute;left:0;right:0;top:100%;background:var(--primary);padding:4px 16px 16px;box-shadow:0 12px 24px rgba(0,0,0,.18)}
.menu ul{list-style:none;margin:0;padding:0}
.menu li a{display:block;padding:11px 4px;color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.12)}
.menu li a[aria-current]{color:#8FD3B6;font-weight:600}
.nav-pc{display:none}
@media (min-width:1100px){
  .menu{display:none}
  .nav-pc{display:block}
  .nav-pc ul{display:flex;gap:2px;list-style:none;margin:0;padding:0}
  .nav-pc a{display:block;color:#fff;text-decoration:none;padding:8px 9px;border-radius:8px;font-size:.9rem;white-space:nowrap}
  .nav-pc a:hover{background:rgba(255,255,255,.1);color:#fff}
  .nav-pc a[aria-current]{color:#8FD3B6;font-weight:600}
}

/* page */
.page{max-width:1120px;margin:0 auto;padding:16px 16px 40px}
.fil ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;margin:0 0 12px;padding:0;font-size:.85rem;color:var(--muted)}
.fil li+li::before{content:"›";margin-right:4px;color:#9AA8B5}
.fil a{color:var(--muted)}
.intro{margin:6px 0 18px}
.intro p{color:var(--muted);font-size:1.02rem;max-width:760px}
.chapo{font-size:1.06rem}
.bloc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 18px;margin:18px 0;box-shadow:var(--shadow)}
.bloc > :last-child{margin-bottom:0}
.deux{display:grid;gap:18px}
@media (min-width:900px){.deux{grid-template-columns:1fr 1fr}.deux > .bloc{margin:0}}
.chiffres{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:14px 0}
.chiffre{background:var(--soft);border-radius:12px;padding:12px 14px}
.chiffre span{display:block;font-size:.82rem;color:var(--muted)}
.chiffre b{display:block;font-size:1.3rem;font-variant-numeric:tabular-nums;white-space:nowrap}
.chiffre.net{background:var(--net-soft)}
.chiffre.net b{color:var(--net)}
.note{font-size:.88rem;color:var(--muted)}
.avert{background:#FFF6E5;border:1px solid #F3D9A4;border-radius:12px;padding:10px 14px;font-size:.9rem;color:#6B4B0B;margin:12px 0}
.liens{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:8px 0 0}
.liens a{display:inline-block;padding:7px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;text-decoration:none;font-size:.92rem;color:var(--primary)}
.liens a:hover{border-color:var(--primary-2)}
.btn{display:inline-block;background:var(--primary);color:#fff;border-radius:10px;padding:10px 16px;text-decoration:none;font-weight:600}
.btn:hover{background:var(--primary-2);color:#fff}

/* simulateur */
.calc{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:18px 16px;display:grid;gap:18px;margin:10px 0 22px}
@media (min-width:960px){.calc{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);padding:26px;gap:28px}.res{position:sticky;top:12px;align-self:start}}
.calc-t{font-size:1.25rem;margin:0 0 4px}
.calc-aide{font-size:.9rem;color:var(--muted);margin:0 0 12px}
.grille-m{display:grid;grid-template-columns:auto minmax(0,1fr) minmax(0,1fr);gap:8px 10px;align-items:center}
.gm-h{font-size:.8rem;font-weight:650;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.gm-l{font-size:.9rem;font-weight:600;padding-right:2px}
.ch-l{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.ch-i{display:flex;align-items:center;border:1.5px solid var(--line);border-radius:12px;background:#fff;transition:border-color .15s,box-shadow .15s}
.ch-i:focus-within{border-color:var(--primary-2);box-shadow:0 0 0 3px rgba(21,94,140,.15)}
.ch-i input{flex:1;min-width:0;width:100%;border:0;background:none;font:inherit;font-size:1.02rem;font-weight:600;padding:10px 4px 10px 12px;color:var(--ink);font-variant-numeric:tabular-nums;outline:none}
.ch-u{padding-right:12px;color:var(--muted);font-weight:600}
.ch-net .ch-i{background:#F6FBF8}
.ch-net .ch-i input{color:var(--net)}
.opt{border:0;margin:14px 0 0;padding:0;display:block;min-width:0}
.opt legend,.leg{display:block;font-size:.88rem;font-weight:650;margin-bottom:6px;padding:0}
.opt-ligne{display:grid;gap:0 16px}
@media (min-width:520px){.opt-ligne{grid-template-columns:minmax(0,1fr) 170px}}
.opt-note{display:block;font-size:.82rem;color:var(--muted);margin:6px 0 0}
.ch-pct{max-width:170px}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg-o{position:relative}
.seg-o input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.seg-o span{display:block;padding:8px 13px;border:1.5px solid var(--line);border-radius:999px;font-size:.92rem;background:#fff;cursor:pointer;white-space:nowrap}
.seg-o input:checked + span{background:var(--primary);border-color:var(--primary);color:#fff}
.seg-o input:focus-visible + span{box-shadow:0 0 0 3px rgba(21,94,140,.3)}
.ch-perso{display:block;margin-top:10px}
.ch-perso[hidden],[data-fp][hidden]{display:none}
.avance{margin-top:16px;border-top:1px solid var(--line);padding-top:10px}
.avance summary{cursor:pointer;font-weight:600;color:var(--primary-2);padding:4px 0}
.coche{display:flex;gap:8px;align-items:flex-start;font-size:.93rem;margin-top:10px}
.coche input{margin-top:5px}
.res-cartes{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.carte{border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:2px;min-width:0}
.carte-net{background:var(--net);color:#fff}
.carte-apres{background:var(--primary);color:#fff}
.carte-l{font-size:.82rem;opacity:.9}
.carte-v{font-size:1.45rem;font-weight:750;font-variant-numeric:tabular-nums;letter-spacing:-.01em;white-space:nowrap}
.carte-s{font-size:.8rem;opacity:.9}
@media (min-width:400px){.carte-v{font-size:1.6rem}}
.barre{display:flex;height:16px;border-radius:999px;overflow:hidden;background:var(--soft);margin:16px 0 8px}
.barre span{display:block;height:100%}
.b-net,.l-net{background:var(--net)}
.b-imp,.l-imp{background:var(--imp)}
.b-cot,.l-cot{background:var(--cot)}
.legende{display:flex;flex-wrap:wrap;gap:4px 14px;list-style:none;padding:0;margin:0 0 10px;font-size:.82rem;color:var(--muted)}
.legende i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;vertical-align:-1px}
.detail{border:1px solid var(--line);border-radius:12px;padding:0 12px;margin-top:10px;background:#fff}
.detail summary{cursor:pointer;padding:11px 0;font-weight:600}
.detail[open] summary{border-bottom:1px solid var(--line);margin-bottom:8px}
.detail p{font-size:.88rem;color:var(--muted)}
.imposable{font-size:.88rem;color:var(--muted);margin:10px 0 12px}

/* tableaux */
.t{width:100%;border-collapse:collapse;font-size:.92rem;font-variant-numeric:tabular-nums}
.t caption{text-align:left;font-size:.82rem;color:var(--muted);padding:0 0 6px}
.t th,.t td{padding:8px 8px;border-bottom:1px solid var(--line);text-align:right;vertical-align:top}
.t th:first-child{text-align:left;font-weight:500}
.t thead th{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:650;border-bottom:1.5px solid var(--ink)}
.t tr.tot th,.t tr.tot td{font-weight:700;border-bottom:0}
.t tr.mis th,.t tr.mis td{background:var(--net-soft)}
.t td.net{color:var(--net);font-weight:650}
.t a{font-weight:600}
@media (max-width:640px){
  .t thead{display:none}
  .t,.t tbody,.t tr{display:block}
  .t tr{display:grid;grid-template-columns:1fr auto;gap:0 10px;padding:9px 0;border-bottom:1px solid var(--line)}
  .t th,.t td{border:0;padding:1px 0}
  .t th[scope=row]{grid-column:1/-1;font-weight:650}
  .t td{display:contents}
  .t td::before{content:attr(data-l);color:var(--muted);font-size:.84rem;text-align:left}
  .t td{text-align:right}
  .t tr.tot{border-bottom:0}
}
@media (max-width:640px){
  /* td en display:contents : on stylise le texte via un conteneur implicite */
  .t td{font-weight:600}
}

/* FAQ */
.faq-i{border-bottom:1px solid var(--line)}
.faq-i:last-child{border-bottom:0}
.faq-i summary{cursor:pointer;list-style:none;padding:13px 28px 13px 0;position:relative}
.faq-i summary::-webkit-details-marker{display:none}
.faq-i summary::after{content:"+";position:absolute;right:4px;top:10px;font-size:1.3rem;color:var(--primary-2)}
.faq-i[open] summary::after{content:"−"}
.faq-i h3{margin:0;font-size:1rem;font-weight:600}
.faq-r p{color:#2B3B4B}

/* grille PAS, sources */
.sources li{margin-bottom:8px}
.src{font-size:.8rem;color:var(--muted)}

/* pied */
.pied{background:#0A2436;color:#C9D6E1;margin-top:30px}
.pied-in{max-width:1120px;margin:0 auto;padding:26px 16px 30px;display:grid;gap:14px}
.pied a{color:#fff}
.pied ul{list-style:none;display:flex;flex-wrap:wrap;gap:6px 18px;padding:0;margin:0}
.pied-marque{display:flex;gap:10px;align-items:center;margin:0}
.pied-marque b{color:#fff}
.pied-note{font-size:.82rem;color:#9FB1C1;margin:0;max-width:820px}
@media (min-width:900px){h1{font-size:2.1rem}.bloc{padding:24px 26px}}
@media (max-width:520px){
  .grille-m{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:4px 8px}
  .grille-m .gm-h:first-child{display:none}
  .gm-l{grid-column:1/-1;margin-top:6px;font-size:.85rem;color:var(--muted)}
  .ch-i input{padding-left:10px;font-size:1rem}
  .ch-u{padding-right:9px}
}
@media (max-width:640px){.t caption{display:block}}