/* ==========================================================================
   Ravalement Pro — main.css
   Design system minéral / patrimoine (distinct de assainir-pro)
   Palette pierre + ardoise + terracotta · titres serif old-style
   Préfixe composants : rvp / .stone- / .oblig- / .pricing- / .step-
   ========================================================================== */

:root{
  /* Pierre / calcaire (fonds) */
  --stone:      #F5F1EA;
  --stone-2:    #EFE9DE;
  --stone-3:    #E5DCCB;
  --paper:      #FBF9F5;
  /* Encre / ardoise (texte, fonds sombres) */
  --ink:        #22272B;
  --ink-2:      #4C555B;
  --ink-3:      #6E787E;
  --slate:      #2B343A;   /* fond sombre bandes */
  --slate-2:    #364149;
  /* Accent vert-de-gris / patine (zinc & cuivre oxydés des toits parisiens) */
  --terra:      #3F7059;
  --terra-dark: #2F5A46;
  --terra-soft: #A9CBBB;
  /* Lignes & états */
  --line:       #DBD2C2;
  --line-soft:  #E7E0D3;
  --on-dark:    #EFEAE0;
  --on-dark-2:  #C3BCAE;
  --ok:         #4B7A5B;
  /* Typo */
  --serif: 'Fraunces','Palatino Linotype','Book Antiqua',Palatino,Georgia,serif;
  --sans: 'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  /* Mesure */
  --wrap: 1140px;
  --radius: 4px;
  --radius-lg: 10px;
  --shadow: 0 1px 2px rgba(34,39,43,.06), 0 8px 30px rgba(34,39,43,.06);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.65;
  color:var(--ink);
  background:var(--stone);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--terra-dark);text-decoration:none}
a:hover{text-decoration:underline}

h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.15;color:var(--ink);margin:0 0 .5em}
h1{font-size:clamp(2rem,4.2vw,3.1rem);letter-spacing:-.01em}
h2{font-size:clamp(1.5rem,2.8vw,2.15rem)}
h3{font-size:1.25rem}
p{margin:0 0 1.1em}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.section{padding:76px 0}
.section--tight{padding:52px 0}
.eyebrow{font-family:var(--sans);font-weight:600;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--terra-dark);margin:0 0 .8rem}
.lead{font-size:1.18rem;color:var(--ink-2);line-height:1.6}
.center{text-align:center}
.measure{max-width:none}

/* Boutons ---------------------------------------------------------------- */
.btn{display:inline-flex;align-items:center;gap:.55rem;font-family:var(--sans);font-weight:600;
  font-size:1rem;line-height:1;padding:.95rem 1.5rem;border-radius:var(--radius);
  border:1px solid transparent;cursor:pointer;transition:transform .12s ease,background .15s ease,box-shadow .15s ease;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--primary{background:var(--terra);color:#fff;box-shadow:0 6px 18px rgba(63,112,89,.30)}
.btn--primary:hover{background:var(--terra-dark);color:#fff}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--ink);background:var(--paper)}
.btn--light{background:var(--paper);color:var(--ink)}
.btn--block{width:100%;justify-content:center}
.btn--lg{padding:1.1rem 1.9rem;font-size:1.05rem}

/* Header ----------------------------------------------------------------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(251,249,245,.92);
  backdrop-filter:saturate(150%) blur(8px);border-bottom:1px solid var(--line-soft)}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:1.2rem;height:70px}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--serif);font-weight:600;font-size:1.3rem;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand__mark{width:30px;height:30px;flex:0 0 30px}
.brand em{color:var(--terra);font-style:normal}
.nav{display:flex;align-items:center;gap:1.6rem}
.nav a{color:var(--ink-2);font-weight:500;font-size:.98rem}
.nav a:hover{color:var(--ink);text-decoration:none}
.header-cta{display:inline-flex}
.burger{display:none;background:none;border:0;padding:.4rem;cursor:pointer}
.burger span{display:block;width:22px;height:2px;background:var(--ink);margin:4px 0;transition:.2s}

/* Hero ------------------------------------------------------------------- */
.hero{position:relative;background:linear-gradient(180deg,var(--paper),var(--stone));overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--line-soft) 1px,transparent 1px);
  background-size:100% 46px;opacity:.5;mask-image:linear-gradient(180deg,#000,transparent 70%)}
.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding:72px 22px 64px}
.hero h1{margin-bottom:.4em}
.hero .lead{margin-bottom:1.6rem}
.hero__cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-bottom:1.4rem}
.hero__trust{display:flex;flex-wrap:wrap;gap:.5rem 1.3rem;font-size:.92rem;color:var(--ink-3)}
.hero__trust span{display:inline-flex;align-items:center;gap:.4rem}
.hero__trust svg{width:15px;height:15px;color:var(--terra)}
.punch{background:linear-gradient(transparent 62%,var(--terra-soft) 62%);padding:0 .12em}

/* Hero homepage avec photo de fond (voile pierre clair, texte + carte lisibles) */
.hero--photo{
  background:
    linear-gradient(90deg, rgba(245,241,234,.975) 0%, rgba(245,241,234,.90) 42%, rgba(245,241,234,.60) 74%, rgba(245,241,234,.42) 100%),
    url(../img/hero-home.jpg) center right / cover no-repeat;
}
.hero--photo::after{display:none}
@media(max-width:640px){
  .hero--photo{background:
    linear-gradient(rgba(245,241,234,.93),rgba(245,241,234,.95)),
    url(../img/hero-home.jpg) center / cover no-repeat;}
}

/* Carte formulaire dans le hero */
.lead-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:26px}
.lead-card h3{font-family:var(--sans);font-size:1.05rem;font-weight:700;margin-bottom:.2rem}
.lead-card .sub{font-size:.9rem;color:var(--ink-3);margin-bottom:1.1rem}

/* Formulaire ------------------------------------------------------------- */
.field{margin-bottom:.85rem}
.field label{display:block;font-size:.82rem;font-weight:600;color:var(--ink-2);margin-bottom:.3rem}
.field input,.field select,.field textarea{width:100%;font-family:var(--sans);font-size:1rem;
  padding:.72rem .8rem;border:1px solid var(--line);border-radius:var(--radius);background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--terra);box-shadow:0 0 0 3px rgba(63,112,89,.16)}
.field--row{display:grid;grid-template-columns:1fr 1fr;gap:.7rem}
.form-note{font-size:.78rem;color:var(--ink-3);margin-top:.6rem}
.hp{position:absolute;left:-9999px}

/* Bandeau obligation (différenciateur) ----------------------------------- */
.oblig-band{background:var(--slate);color:var(--on-dark)}
.oblig-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap;padding:34px 22px}
.oblig-band h2{color:#fff;font-size:1.55rem;margin-bottom:.3rem}
.oblig-band .wrap>div{flex:1 1 340px}
.oblig-band p{color:var(--on-dark-2);margin:0}
.oblig-band__cta{flex:0 0 auto}

/* Grille cartes ---------------------------------------------------------- */
.grid{display:grid;gap:22px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.stone-card{background:var(--paper);border:1px solid var(--line-soft);border-radius:var(--radius-lg);
  padding:26px;position:relative;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.stone-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line)}
.stone-card__ic{width:38px;height:38px;color:var(--terra);margin-bottom:1rem}
.stone-card h3{font-size:1.15rem;margin-bottom:.35rem}
.stone-card p{font-size:.96rem;color:var(--ink-2);margin:0}

/* Bande prix ------------------------------------------------------------- */
.pricing-band{background:var(--stone-2)}
.pricing-table{width:100%;border-collapse:collapse;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.pricing-table th,.pricing-table td{padding:.9rem 1.1rem;text-align:left;border-bottom:1px solid var(--line-soft)}
.pricing-table thead th{background:var(--slate);color:var(--on-dark);font-family:var(--sans);font-size:.82rem;letter-spacing:.04em;text-transform:uppercase;font-weight:600}
.pricing-table tbody tr:last-child td{border-bottom:0}
.pricing-table .price{font-family:var(--serif);font-weight:600;color:var(--terra-dark);white-space:nowrap}
.price-note{font-size:.82rem;color:var(--ink-3);margin-top:.8rem}

/* Étapes ----------------------------------------------------------------- */
.step-flow{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{position:relative;padding-top:8px}
.step__n{font-family:var(--serif);font-size:2.4rem;color:var(--terra-soft);font-weight:600;line-height:1}
.step h3{font-size:1.1rem;margin:.5rem 0 .3rem}
.step p{font-size:.95rem;color:var(--ink-2);margin:0}

/* FAQ -------------------------------------------------------------------- */
.faq details{background:var(--paper);border:1px solid var(--line-soft);border-radius:var(--radius);margin-bottom:.7rem;padding:0 1.1rem}
.faq summary{cursor:pointer;list-style:none;padding:1rem 0;font-weight:600;color:var(--ink);display:flex;justify-content:space-between;gap:1rem;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--serif);font-size:1.5rem;color:var(--terra);line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{border-bottom:1px solid var(--line-soft)}
.faq details p{padding:1rem 0;margin:0;color:var(--ink-2)}

/* Zones ------------------------------------------------------------------ */
.zone-pills{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.2rem}
.zone-pills a{background:var(--paper);border:1px solid var(--line);border-radius:100px;
  padding:.4rem .95rem;font-size:.9rem;color:var(--ink-2);font-weight:500}
.zone-pills a:hover{border-color:var(--terra);color:var(--terra-dark);text-decoration:none}

/* Bande CTA -------------------------------------------------------------- */
.cta-band{background:var(--slate);color:var(--on-dark)}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap;padding:44px 22px}
.cta-band .wrap>div{flex:1 1 340px}
.cta-band h2{color:#fff;margin-bottom:.3rem}
.cta-band p{color:var(--on-dark-2);margin:0}

/* Prose (pages de contenu) ---------------------------------------------- */
.prose{max-width:none}
/* quand .prose est combiné à .wrap sur le même élément, garder la largeur du conteneur (centré, aligné) */
.wrap.prose{max-width:var(--wrap)}
.prose h2{margin-top:2rem}
.prose h2::after{content:"";display:block;width:46px;height:3px;background:var(--terra);margin-top:.5rem;border-radius:2px}
.prose ul{list-style:none;padding:0}
.prose ul li{position:relative;padding-left:1.5rem;margin-bottom:.5rem}
.prose ul li::before{content:"";position:absolute;left:0;top:.55em;width:8px;height:8px;background:var(--terra);border-radius:1px}
.prose ol{counter-reset:li;list-style:none;padding:0}
.prose ol li{counter-increment:li;position:relative;padding-left:2.4rem;margin-bottom:.7rem}
.prose ol li::before{content:counter(li);position:absolute;left:0;top:-.1em;width:1.7rem;height:1.7rem;
  background:var(--slate);color:#fff;border-radius:50%;display:grid;place-items:center;font-family:var(--sans);font-size:.85rem;font-weight:700}
.callout{background:var(--stone-2);border-left:3px solid var(--terra);border-radius:var(--radius);padding:1.1rem 1.3rem;margin:1.4rem 0}
.callout p:last-child{margin:0}
/* FAQ dans la prose (articles + pages) : questions en gras, marqueur +/-, cartes */
.prose details{background:var(--paper);border:1px solid var(--line-soft);border-radius:var(--radius);margin:0 0 .6rem;padding:0 1.1rem}
.prose details summary{cursor:pointer;list-style:none;padding:.95rem 0;font-weight:700;color:var(--ink);display:flex;justify-content:space-between;gap:1rem;align-items:center}
.prose details summary::-webkit-details-marker{display:none}
.prose details summary::after{content:"+";font-family:var(--serif);font-size:1.4rem;color:var(--terra);line-height:1;flex:0 0 auto}
.prose details[open] summary::after{content:"–"}
.prose details[open] summary{border-bottom:1px solid var(--line-soft)}
.prose details p{padding:.9rem 0;margin:0;color:var(--ink-2)}

/* Footer ----------------------------------------------------------------- */
.site-footer{background:var(--slate);color:var(--on-dark-2);padding:56px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.site-footer h4{color:#fff;font-family:var(--sans);font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:1rem}
.site-footer a{color:var(--on-dark-2);display:block;margin-bottom:.5rem;font-size:.95rem}
.site-footer a:hover{color:#fff}
.site-footer .brand{color:#fff}
.footer-bottom{border-top:1px solid var(--slate-2);margin-top:36px;padding-top:22px;font-size:.85rem;color:var(--on-dark-2);display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem}

/* Barre mobile sticky ---------------------------------------------------- */
.mobile-cta{display:none}

/* Reveal ----------------------------------------------------------------- */
.rv{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* Responsive ------------------------------------------------------------- */
@media(max-width:900px){
  .hero__inner{grid-template-columns:1fr;gap:32px;padding:48px 22px}
  .grid--3,.grid--4{grid-template-columns:1fr 1fr}
  .step-flow{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  body{font-size:16px}
  .section{padding:52px 0}
  .nav{display:none}
  .header-cta{display:none}
  .burger{display:block}
  .nav--open{display:flex;position:absolute;top:70px;left:0;right:0;flex-direction:column;
    background:var(--paper);border-bottom:1px solid var(--line);padding:1rem 22px;gap:.4rem}
  .nav--open a{padding:.5rem 0}
  .grid--3,.grid--4,.grid--2,.field--row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .oblig-band .wrap,.cta-band .wrap{flex-direction:column;align-items:flex-start;gap:1rem}
  .pricing-table{table-layout:fixed;width:100%}
  .pricing-table th,.pricing-table td{padding:.55rem .5rem;font-size:.84rem;word-break:break-word;overflow-wrap:anywhere}
  .pricing-table .price{white-space:normal}
  .mobile-cta{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;padding:.7rem;
    background:rgba(251,249,245,.96);border-top:1px solid var(--line);backdrop-filter:blur(6px)}
  .mobile-cta .btn{width:100%}
  body{padding-bottom:70px}
}

/* ==== Pages de contenu : hero image + 2 colonnes + sommaire + CTA ==== */
.page-hero{position:relative;min-height:320px;display:flex;align-items:flex-end;
  background:var(--slate);overflow:hidden}
.page-hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.page-hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,24,27,.15) 0%,rgba(20,24,27,.35) 45%,rgba(20,24,27,.82) 100%)}
.page-hero__inner{position:relative;z-index:2;width:100%;padding:40px 22px 34px}
.page-hero .eyebrow{color:var(--terra-soft)}
.page-hero h1{color:#fff;margin:0}
.page-hero__lead{color:var(--on-dark);margin:.7rem 0 0;font-size:1.1rem}
.article-meta{color:var(--on-dark-2);font-size:.9rem;margin:.9rem 0 0}
.page-hero--plain .article-meta{color:var(--ink-3)}
.article-sources{font-size:.85rem;color:var(--ink-3);border-top:1px solid var(--line-soft);padding-top:1rem;margin-top:2.4rem}
/* hero sans image (fallback) */
.page-hero--plain{background:linear-gradient(180deg,var(--paper),var(--stone));min-height:0}
.page-hero--plain::after{display:none}
.page-hero--plain .eyebrow{color:var(--terra-dark)}
.page-hero--plain h1{color:var(--ink)}
.page-hero--plain .page-hero__lead{color:var(--ink-2)}

.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.toc-rail{position:sticky;top:90px;display:flex;flex-direction:column;gap:18px}
.toc-card,.cta-card{border-radius:var(--radius-lg);border:1px solid var(--line);background:var(--paper)}
.toc-card{padding:20px 22px}
.toc-card h4{font-family:var(--sans);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin:0 0 .7rem}
.toc-card ol{list-style:none;counter-reset:toc;margin:0;padding:0}
.toc-card li{counter-increment:toc;margin:0 0 .1rem}
.toc-card a{display:block;padding:.4rem 0 .4rem 1.7rem;position:relative;color:var(--ink-2);font-size:.94rem;line-height:1.35;border-left:2px solid var(--line-soft);margin-left:2px}
.toc-card a::before{content:counter(toc);position:absolute;left:-11px;top:.4rem;width:20px;height:20px;background:var(--stone-3);color:var(--ink-2);border-radius:50%;display:grid;place-items:center;font-size:.72rem;font-weight:700}
.toc-card a:hover{color:var(--ink);text-decoration:none}
.toc-card a.active{color:var(--terra-dark);border-left-color:var(--terra)}
.toc-card a.active::before{background:var(--terra);color:#fff}

.cta-card{background:var(--slate);border-color:var(--slate-2);padding:24px 22px;color:var(--on-dark)}
.cta-card h4{font-family:var(--serif);font-size:1.2rem;color:#fff;margin:0 0 .4rem;text-transform:none;letter-spacing:0}
.cta-card p{font-size:.92rem;color:var(--on-dark-2);margin:0 0 1rem}
.cta-card .btn{width:100%;justify-content:center}
.cta-card .mini{display:block;text-align:center;font-size:.8rem;color:var(--on-dark-2);margin-top:.6rem}

/* Figure inline dans la prose */
.prose figure{margin:1.8rem 0}
.prose figure img{border-radius:var(--radius-lg);width:100%}
.prose figure figcaption{font-size:.85rem;color:var(--ink-3);margin-top:.5rem;text-align:center}

@media(max-width:900px){
  .content-layout{grid-template-columns:1fr;gap:0}
  .toc-rail{display:none}
  .page-hero{min-height:240px}
}