/* =========================================================
   AN-CONCEPT — feuille de style (d'après la maquette v2)
   ========================================================= */

:root{
  --dark:#3e1037;          /* fond sombre (footer, sécurité, hero) */
  --dark-2:#4d1a46;
  --magenta:#96268a;       /* boutons, titres, bandeaux */
  --crimson:#b0295e;       /* accents, surtitres, puces */
  --pink:#eee0ef;          /* section rose */
  --grey:#f2f2f4;          /* section grise */
  --ink:#2a2430;
  --text:#5b5562;
  --muted:#7a7480;
  --line:#e6e3ea;
  --white:#ffffff;
  --radius:6px;
  --shadow:0 1px 2px rgba(42,36,48,.05),0 10px 30px rgba(62,16,55,.07);
  --ease:cubic-bezier(.22,1,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--white);color:var(--text);
  font-family:'Barlow',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:16px;line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.12;font-weight:700}
h1{font-size:clamp(34px,4.6vw,54px);font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(28px,3.2vw,40px);color:var(--magenta)}
h3{font-size:19px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.skip-link{position:absolute;left:-999px;top:0;background:#fff;padding:.6rem 1rem;z-index:300}
.skip-link:focus{left:12px;top:12px}

.container{width:min(1040px,100% - 48px);margin-inline:auto}
.section{padding:84px 0}
.section-grey{background:var(--grey)}
.section-pink{background:var(--pink)}
.section-dark{background:var(--dark);color:#e9dfe8}

.eyebrow{
  display:block;margin-bottom:12px;
  font-family:'Barlow Condensed',sans-serif;font-weight:600;font-size:13px;
  letter-spacing:.16em;text-transform:uppercase;color:var(--crimson);
}
.eyebrow-light{color:#e8a9c8}
.underline::after{content:"";display:block;width:52px;height:3px;background:var(--crimson);margin-top:18px;border-radius:2px}
.lead{font-size:17px;color:var(--text);max-width:52ch}
.section-head{margin-bottom:44px}
.section-head.split{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.link-arrow{color:var(--magenta);font-weight:600;text-decoration:underline;text-underline-offset:4px;white-space:nowrap}
.link-arrow:hover{color:var(--crimson)}

/* ---------- Boutons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:var(--radius);border:1.5px solid transparent;
  font:600 15px/1 'Barlow',sans-serif;cursor:pointer;white-space:nowrap;
  transition:transform .25s var(--ease),background .25s,color .25s,border-color .25s,box-shadow .25s;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--magenta);color:#fff;box-shadow:0 8px 20px rgba(150,38,138,.25)}
.btn-primary:hover{background:#7f1f75;box-shadow:0 12px 26px rgba(150,38,138,.33)}
.btn-light{background:#fff;color:var(--magenta)}
.btn-light:hover{box-shadow:0 10px 24px rgba(0,0,0,.18)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-outline-magenta{background:transparent;color:var(--magenta);border-color:var(--magenta)}
.btn-outline-magenta:hover{background:var(--magenta);color:#fff}
.btn-sm{padding:11px 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- En-tête ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid transparent;transition:box-shadow .3s,border-color .3s;
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(42,36,48,.08);border-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:84px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand img{height:50px;width:auto}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-weight:500;font-size:15px;color:var(--ink);position:relative;padding:6px 0;transition:color .2s}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--magenta);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.mobile-only{display:none}
.nav a:hover,.nav a[aria-current="page"]{color:var(--magenta)}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.client-link{display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:15px;color:var(--magenta);margin-right:6px;white-space:nowrap}
.client-link svg{width:14px;height:14px}
.header-actions .btn-sm{padding:11px 16px}
.burger{display:none;width:44px;height:44px;border:0;background:none;cursor:pointer;padding:10px;flex-direction:column;justify-content:center;gap:5px}
.burger span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:transform .35s var(--ease),opacity .25s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;isolation:isolate}
.hero-inner{position:relative;z-index:2;padding:110px 0 104px;max-width:600px}
.hero-media{position:absolute;top:0;right:0;bottom:0;width:50%;z-index:0}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.9;animation:fadeScale 1.6s var(--ease) both}
.hero-media::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,var(--dark) 0%,rgba(62,16,55,.25) 55%,rgba(62,16,55,0) 100%)}
.hero .eyebrow{color:#eab8d3;letter-spacing:.2em}
.hero h1{color:#fff;margin-bottom:22px}
.hero .lead{color:#ecdfe9;font-size:18px;margin-bottom:34px;max-width:46ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-inner > *{animation:fadeUp .9s var(--ease) both}
.hero-inner > *:nth-child(2){animation-delay:.12s}
.hero-inner > *:nth-child(3){animation-delay:.24s}
.hero-inner > *:nth-child(4){animation-delay:.36s}

/* Hero intérieur (étanchéité, réalisations, contact) */
.hero-page .hero-inner{padding:72px 0 74px;max-width:none}
.hero-page .hero-inner-text{max-width:620px}
.hero-page .hero-media{width:42%}
.breadcrumb{font-size:14px;color:#dcc9d8;margin-bottom:22px}
.breadcrumb a{text-decoration:underline;text-underline-offset:3px}
.breadcrumb a:hover{color:#fff}
.hero-page .lead{margin-bottom:0}
.hero-arc{position:absolute;z-index:1;pointer-events:none;border-radius:50%;border:34px solid var(--crimson);border-color:var(--magenta) transparent transparent var(--crimson)}

/* ---------- Bandeau chiffres (Qualibat) ---------- */
.kpis{background:var(--grey);padding:30px 0;border-bottom:1px solid var(--line)}
.kpis-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:28px;align-items:center}
.kpi{display:flex;align-items:center;gap:14px}
.kpi img{width:44px;height:52px;object-fit:contain;flex-shrink:0}
.kpi-num{font:800 26px/1.05 'Barlow',sans-serif;color:var(--crimson);display:block}
.kpi-txt{font-size:14px;color:var(--muted);line-height:1.35}
.kpi-txt strong{display:block;font-size:14px;color:var(--ink);font-weight:600}

/* ---------- Cartes ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.card:hover{transform:translateY(-6px);box-shadow:0 2px 4px rgba(42,36,48,.06),0 22px 44px rgba(62,16,55,.14)}
.card-img{aspect-ratio:16/10;overflow:hidden;background:var(--grey)}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.card:hover .card-img img{transform:scale(1.06)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-body h3{color:var(--ink);font-size:18px}
.card-body p{font-size:15px;color:var(--muted);line-height:1.5}
.card-more{margin-top:auto;padding-top:8px;font-weight:600;font-size:15px;color:var(--magenta)}
.card-more:hover{color:var(--crimson)}
.tag{font-family:'Barlow Condensed',sans-serif;font-weight:600;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--crimson)}
.card-body .meta{font-size:14px;color:var(--muted)}
.card-body .tag + h3{margin-top:2px}

/* Expertises (accueil) */
.expertise .card-img{aspect-ratio:302/187}

/* Carte « une autre toiture » */
.cta-strip{margin-top:34px;background:var(--magenta);color:#fff;border-radius:var(--radius);padding:26px 32px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta-strip h3{color:#fff;font-size:20px;margin-bottom:4px}
.cta-strip p{color:#f0d7ec;font-size:15px}
.cta-strip a{font-weight:600;white-space:nowrap}
.cta-strip a:hover{text-decoration:underline}

/* ---------- Solaire (accueil) ---------- */
.split-2{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split-2 .photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.split-2 .photo img{width:100%;height:auto;aspect-ratio:5/4;object-fit:cover}
.checklist{margin-top:22px;display:grid;gap:12px}
.checklist li{position:relative;padding-left:24px;font-size:15px;color:var(--text)}
.checklist li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;background:var(--crimson);border-radius:2px;transform:rotate(45deg)}
.checklist li strong{color:var(--ink)}

/* Blocs sombres (fuite / entretien) */
.dark-split{display:grid;grid-template-columns:1fr 1fr;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:var(--dark)}
.dark-split .photo{min-height:360px}
.dark-split .photo img{width:100%;height:100%;object-fit:cover}
.dark-split .panel{padding:54px 48px;color:#e9dfe8;display:flex;flex-direction:column;justify-content:center}
.dark-split h2{color:#fff;font-size:clamp(26px,2.8vw,34px);margin-bottom:18px}
.dark-split .eyebrow{color:#eab8d3}
.dark-split p{color:#ddcdd9;font-size:16px;margin-bottom:22px}
.dash-list{display:grid;gap:12px;margin-bottom:30px}
.dash-list li{font-size:15px;color:#f2e8f0}
.dash-list li::before{content:"— ";color:#eab8d3}

/* Entretien préventif */
.maint{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.maint .photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.maint .photo img{width:100%;height:100%;min-height:340px;object-fit:cover}
.maint-cols{display:grid;grid-template-columns:1fr 1fr;gap:14px 28px;margin:26px 0 22px}
.maint-cols li{position:relative;padding-left:24px;font-size:15px;color:var(--ink);line-height:1.45}
.maint-cols li::before{content:"✓";position:absolute;left:0;top:0;color:var(--crimson);font-weight:700}
.maint p.small{font-size:15px;color:var(--muted);margin-bottom:28px}

/* ---------- Chantiers ---------- */
.projects .card-img{aspect-ratio:409/265}

/* ---------- Pourquoi nous (accueil) ---------- */
.why{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start}
.why .lead{margin-top:16px}
.steps{display:grid;gap:26px}
.step{display:grid;grid-template-columns:44px 1fr;gap:18px;align-items:start}
.step-no{width:40px;height:40px;border-radius:50%;background:var(--magenta);color:#fff;display:grid;place-items:center;font:700 13px 'Barlow',sans-serif;letter-spacing:.02em}
.step-no.alt{background:var(--crimson)}
.step-no.outline{background:#fff;color:var(--crimson);border:1.5px solid var(--crimson)}
.step h3{font-size:17px;margin-bottom:4px}
.step p{font-size:15px;color:var(--muted)}

/* ---------- Sécurité ---------- */
.security{background:var(--dark);color:#e9dfe8}
.security-top{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.security h2{color:#fff}
.security .eyebrow{color:#eab8d3}
.security .lead{color:#dcc9d8;margin-top:16px;max-width:none}
.security .underline::after{background:var(--crimson)}
.security .photo{border-radius:var(--radius);overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.3)}
.security .photo img{width:100%;aspect-ratio:617/406;object-fit:cover}
.sec-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:64px}
.sec-card{border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.04);border-radius:var(--radius);padding:34px 34px 30px}
.sec-card h3{color:#fff;font-size:21px;margin-bottom:22px;font-weight:600}
.sec-card li{position:relative;padding-left:34px;margin-bottom:20px}
.sec-card li:last-child{margin-bottom:0}
.sec-card li::before{content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;background:var(--crimson);color:#fff;font-size:12px;display:grid;place-items:center;font-weight:700}
.sec-card li strong{display:block;color:#fff;font-size:15px;font-weight:600;margin-bottom:2px}
.sec-card li span{font-size:14px;color:#cdb7c8;line-height:1.5}

/* ---------- Qualibat ---------- */
.qualif{border:1px solid var(--line);border-radius:var(--radius);padding:44px 48px;display:grid;grid-template-columns:200px 1fr;gap:48px;align-items:center;box-shadow:var(--shadow);background:#fff}
.qualif-logo{background:#fff;padding:12px;display:flex;justify-content:center}
.qualif-logo img{width:150px;height:auto}
.qualif h2{font-size:clamp(26px,2.8vw,34px);margin-bottom:14px}
.qualif .eyebrow{margin-bottom:10px}
.qualif p{font-size:16px;margin-bottom:12px}
.qualif strong{color:var(--ink);font-weight:600}
.qualif p.small{font-size:14px;color:var(--muted)}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;align-items:center}
.badge{background:var(--grey);border-radius:999px;padding:8px 14px;font-size:14px;color:var(--ink)}
.badge-link{background:#fff;border:1.5px solid var(--magenta);color:var(--magenta);font-weight:600;padding:7px 14px;border-radius:999px;font-size:14px}
.badge-link:hover{background:var(--magenta);color:#fff}

/* ---------- Engagements ---------- */
.engagement-card{padding:34px 30px}
.engagement-card h3{color:var(--magenta);font-size:20px;margin-bottom:12px}
.engagement-card p{font-size:15px;color:var(--muted);line-height:1.6}
.placeholder{color:var(--crimson);font-style:italic}

/* ---------- Bandeau CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--magenta);color:#fff;padding:70px 0}
.cta-band .arc-deco{position:absolute;left:-90px;bottom:-190px;width:380px;height:380px;border-radius:50%;border:34px solid rgba(255,255,255,.12);pointer-events:none}
.cta-band-inner{position:relative;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:clamp(26px,3vw,36px);margin-bottom:12px;max-width:22ch}
.cta-band p{color:#f1d9ec;font-size:16px;max-width:56ch}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Pied de page ---------- */
.site-footer{background:var(--dark);color:#d6c4d2;padding:64px 0 28px;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:40px}
.footer-brand img{height:74px;width:auto}
.footer-brand p{margin-top:18px;max-width:30ch;color:#c9b2c4;line-height:1.6}
.footer-qualibat{margin-top:20px;background:#fff;border-radius:6px;width:58px;height:58px;padding:6px;display:grid;place-items:center}
.footer-qualibat img{width:100%;height:100%;object-fit:contain}
.footer-col h4{font:600 13px/1 'Barlow Condensed',sans-serif;letter-spacing:.16em;text-transform:uppercase;color:#eab8d3;margin-bottom:18px}
.footer-col a,.footer-col span{display:block;color:#d6c4d2;margin-bottom:10px;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-col a.u{text-decoration:underline;text-underline-offset:3px}
.footer-bottom{margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#a98fa3}
.footer-bottom a{text-decoration:underline;text-underline-offset:3px;margin-left:8px}
.footer-bottom a:hover{color:#fff}

/* ---------- Page Étanchéité ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.two-col p + p{margin-top:16px}
.two-col p{color:var(--text)}
.panel-grey{background:var(--grey);border-radius:var(--radius);padding:36px 36px 34px}
.panel-grey h3{font-size:19px;margin-bottom:18px;color:var(--ink);font-weight:600}
.panel-grey .checklist{margin-top:0;gap:13px}
.techs{margin-top:26px;font-size:13px;color:var(--muted);line-height:1.6;border-top:1px solid var(--line);padding-top:18px}
.techs strong{display:block;font:600 12px 'Barlow Condensed',sans-serif;letter-spacing:.14em;text-transform:uppercase;color:var(--crimson);margin-bottom:6px}
.qual-mini{margin-top:26px;background:var(--grey);border-radius:var(--radius);padding:18px 20px;display:flex;gap:16px;align-items:center}
.qual-mini img{width:48px;height:60px;object-fit:contain;flex-shrink:0}
.qual-mini strong{display:block;color:var(--ink);font-size:15px;font-weight:600}
.qual-mini span{font-size:14px;color:var(--muted)}

.solutions .card-img{aspect-ratio:631/284}
.solutions .card-body{padding:26px 28px 30px}

.method{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
.method-step{border-top:3px solid var(--magenta);padding-top:18px}
.method-step:nth-child(2),.method-step:nth-child(4){border-color:var(--crimson)}
.method-step:nth-child(5){border-color:var(--dark)}
.method-step span{font:600 12px 'Barlow',sans-serif;color:var(--muted);letter-spacing:.06em}
.method-step h3{margin:8px 0 8px;font-size:18px;color:var(--ink)}
.method-step p{font-size:14px;color:var(--muted);line-height:1.55}

.chips{display:flex;flex-wrap:wrap;gap:12px}
.chip{background:#fff;border-radius:999px;padding:10px 18px;font-size:15px;color:var(--ink);box-shadow:0 1px 2px rgba(42,36,48,.06)}

.faq{max-width:760px;margin:0 auto;display:grid;gap:12px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:0 22px}
.faq summary{list-style:none;cursor:pointer;padding:18px 0;font-weight:600;color:var(--ink);font-size:16px;display:flex;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"▸";color:var(--magenta);font-size:14px;transition:transform .3s var(--ease)}
.faq details[open] summary::before{transform:rotate(90deg)}
.faq details p{padding:0 0 18px 26px;color:var(--muted);font-size:15px}

.centered-head{text-align:center}
.centered-head.underline::after{margin-left:auto;margin-right:auto}
.centered-head .lead{margin-inline:auto}

/* ---------- Réalisations ---------- */
.realisations-intro{font-size:16px;color:var(--text);margin-bottom:36px}
.note{margin-top:26px;font-size:14px;color:var(--muted)}
.hero-page.realisations-hero .hero-arc{width:500px;height:500px;right:-180px;top:-120px;border-width:44px}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.info-block{margin-bottom:28px}
.info-block h4{font:600 12px 'Barlow Condensed',sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--crimson);margin-bottom:8px}
.info-block p,.info-block a{font-size:16px;color:var(--ink)}
.info-block a{text-decoration:underline;text-underline-offset:3px}
.info-block a:hover{color:var(--magenta)}
.info-block .big{font-size:20px;font-weight:600;color:var(--magenta)}
.info-block .small{font-size:14px;color:var(--muted);margin-top:4px}
.map-box{background:var(--pink);border-radius:var(--radius);height:210px;display:grid;place-items:center;padding:20px;text-align:center;color:var(--magenta);font-size:14px;font-style:italic}
.form-card{background:var(--grey);border-radius:var(--radius);padding:38px 36px}
.form-card .field-label{font-weight:600;font-size:14px;color:var(--ink);margin-bottom:10px;display:block}
.who{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:22px}
.who label{background:#fff;border:1.5px solid transparent;border-radius:var(--radius);padding:13px 14px;display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink);cursor:pointer;transition:border-color .2s,box-shadow .2s}
.who label:hover{border-color:#d9c3d4}
.who input{accent-color:var(--magenta);width:16px;height:16px;margin:0}
.who input:checked + span{color:var(--magenta);font-weight:600}
.who label:has(input:checked){border-color:var(--magenta);box-shadow:0 0 0 3px rgba(150,38,138,.1)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:14px;color:var(--ink);margin-bottom:8px}
.field label .req{color:var(--crimson)}
.field input[type=text],.field input[type=email],.field input[type=tel],.field input[type=password],.field select,.field textarea{
  width:100%;font:inherit;font-size:15px;color:var(--ink);background:#fff;border:1.5px solid #ddd6e0;border-radius:var(--radius);padding:12px 14px;transition:border-color .2s,box-shadow .2s;
}
.field textarea{resize:vertical;min-height:130px}
.field input::placeholder,.field textarea::placeholder{color:#a7a0ab}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--magenta);box-shadow:0 0 0 4px rgba(150,38,138,.12)}
.field.invalid input,.field.invalid textarea,.field.invalid select{border-color:var(--crimson)}
.field .err{display:none;color:var(--crimson);font-size:13px;margin-top:6px}
.field.invalid .err{display:block}
.file-input{width:100%;background:#fff;border:1.5px dashed #cbbfcd;border-radius:var(--radius);padding:14px;font-size:14px}
.field .hint{font-size:13px;color:var(--muted);margin-top:6px}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--text);margin:6px 0 22px;line-height:1.5}
.consent input{margin-top:4px;accent-color:var(--magenta);width:16px;height:16px;flex-shrink:0}
.consent a{color:var(--magenta);text-decoration:underline}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;text-align:left}
.form-status{margin-top:14px;font-size:15px;font-weight:600;color:var(--magenta);min-height:1.4em}

/* ---------- Espace client (connexion) ---------- */
.login{min-height:100vh;display:grid;grid-template-columns:1fr 1fr;background:#fff}
.login-side{position:relative;background:var(--dark);color:#fff;padding:48px 56px;display:flex;flex-direction:column;overflow:hidden}
.login-side img.logo{width:70px;height:auto}
.login-side .txt{margin-top:auto;margin-bottom:auto;position:relative;z-index:2;max-width:440px}
.login-side .eyebrow{color:#eab8d3}
.login-side h1{color:#fff;font-size:clamp(34px,3.6vw,46px);margin-bottom:18px}
.login-side p{color:#dcc9d8;font-size:17px}
.login-side .back{position:relative;z-index:2;color:#dcc9d8;text-decoration:underline;text-underline-offset:3px;font-size:15px}
.login-side .back:hover{color:#fff}
.login-side .arc-deco{position:absolute;left:90px;bottom:-240px;width:440px;height:440px;border-radius:50%;border:38px solid rgba(150,38,138,.9);border-color:var(--magenta) transparent transparent transparent;transform:rotate(-20deg);pointer-events:none}
.login-main{display:grid;place-items:center;padding:48px 24px}
.login-form{width:min(400px,100%)}
.login-form h2{font-size:clamp(30px,3vw,38px);margin-bottom:10px}
.login-form .sub{font-size:15px;color:var(--muted);margin-bottom:30px}
.login-form .row{display:flex;justify-content:space-between;align-items:center;gap:14px;margin:6px 0 26px;font-size:14px}
.login-form .row label{display:flex;align-items:center;gap:8px;color:var(--text)}
.login-form .row input{accent-color:var(--magenta);width:16px;height:16px}
.login-form .row a{color:var(--magenta);text-decoration:underline;text-underline-offset:3px;white-space:nowrap}
.login-form .divider{border-top:1px solid var(--line);margin:28px 0 18px}
.login-form .foot{font-size:14px;color:var(--muted)}
.login-form .foot a{color:var(--magenta);text-decoration:underline;text-underline-offset:3px}

/* ---------- Animations au défilement ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.grid-4 > .reveal:nth-child(2),.grid-3 > .reveal:nth-child(2),.method > .reveal:nth-child(2){transition-delay:.08s}
.grid-4 > .reveal:nth-child(3),.grid-3 > .reveal:nth-child(3),.method > .reveal:nth-child(3){transition-delay:.16s}
.grid-4 > .reveal:nth-child(4),.method > .reveal:nth-child(4){transition-delay:.24s}
.method > .reveal:nth-child(5){transition-delay:.32s}
.grid-4 > .reveal:nth-child(n+5){transition-delay:.12s}

@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
@keyframes fadeScale{from{opacity:0;transform:scale(1.05)}to{opacity:.9;transform:none}}

/* ---------- Responsive ---------- */
@media (max-width:1240px){
  .header-actions .btn-phone{display:none}
}
@media (max-width:1080px){
  .nav{gap:22px}
  .client-link{display:none}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .method{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:960px){
  .burger{display:flex}
  .header-actions .btn-phone{display:none}
  .nav{
    position:fixed;inset:84px 0 0 0;background:#fff;flex-direction:column;align-items:flex-start;justify-content:flex-start;
    padding:28px 24px;gap:0;transform:translateX(100%);transition:transform .45s var(--ease);z-index:90;overflow-y:auto;
  }
  .nav.open{transform:translateX(0)}
  .nav a{font-size:18px;padding:16px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav a::after{display:none}
  .nav .mobile-only{display:block;margin-top:24px;border:0;padding:0;text-align:center}
  .kpis-grid{grid-template-columns:1fr 1fr;gap:22px}
  .split-2,.dark-split,.maint,.why,.security-top,.two-col,.contact-grid,.qualif,.login{grid-template-columns:1fr}
  .dark-split .photo{min-height:280px;order:-1}
  .maint .photo img{min-height:280px}
  .sec-cards{grid-template-columns:1fr;margin-top:44px}
  .hero-media{width:100%;opacity:.45}
  .hero-media::before{background:linear-gradient(180deg,rgba(62,16,55,.5),rgba(62,16,55,.95))}
  .hero-page .hero-media{width:100%}
  .hero-page .hero-inner{padding:58px 0 60px}
  .method{grid-template-columns:1fr 1fr}
  .qualif{padding:34px 28px;gap:26px}
  .qualif-logo{justify-self:start}
  .login-side{padding:36px 28px;min-height:360px}
  .login-side .arc-deco{width:300px;height:300px;left:auto;right:-130px;bottom:-150px;border-width:26px}
  .contact-grid{gap:34px}
}
@media (max-width:640px){
  body{font-size:15px}
  .container{width:min(1040px,100% - 32px)}
  .section{padding:60px 0}
  .section-head{margin-bottom:32px}
  .header-inner{height:70px}
  .brand img{height:42px;width:42px}
  .header-actions .btn-primary{display:none}
  .header-actions{gap:0}
  .burger{margin-left:4px}
  .nav{inset:70px 0 0 0}
  .hero-inner{padding:72px 0 76px}
  .hero .lead{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
  .kpis-grid{grid-template-columns:1fr 1fr}
  .form-row,.who,.maint-cols{grid-template-columns:1fr}
  .form-card{padding:26px 20px}
  .dark-split .panel{padding:36px 26px}
  .method{grid-template-columns:1fr}
  .cta-band-inner{flex-direction:column;align-items:flex-start}
  .cta-band .actions{width:100%}
  .cta-band .actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .footer-bottom a{margin-left:0;margin-right:14px}
  .cta-strip{padding:22px 22px}
  .qualif{padding:26px 20px}
  .qualif-logo img{width:120px}
  .sec-card{padding:28px 22px}
  .login-main{padding:40px 20px}
  .login-form .row{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}