/* ============================================================
   Cat Nat HdF — direction artistique
   Terre cuite / ocre / bleu nuit — sérieux, engagé, moderne
   ============================================================ */

:root{
  --ink:#0f1a2e;          /* bleu nuit profond, sol argileux mouillé */
  --ink-2:#17253d;
  --ink-3:#1f3053;
  --cream:#f6efe6;        /* argile sèche pâle */
  --cream-2:#efe4d2;
  --paper:#fbf7f1;
  --terracotta:#b74a2b;   /* terre cuite fissurée */
  --terracotta-d:#8f3820;
  --ocre:#c58e3f;         /* ocre argile */
  --ocre-d:#8f6524;
  --line:#2a2825;
  --muted:#5e5a53;
  --border:rgba(15,26,46,.12);
  --border-dark:rgba(246,239,230,.18);
  --shadow:0 30px 80px -30px rgba(15,26,46,.35);
  --shadow-sm:0 10px 30px -12px rgba(15,26,46,.25);
  --maxw:1240px;
  --gutter:clamp(1.25rem,4vw,2.5rem);
  --radius:14px;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Inter","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--line);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  line-height:1.6;
  font-size:16px;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--terracotta-d);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--terracotta)}

/* ---------- Typography ---------- */
h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:500;
  color:var(--ink);
  letter-spacing:-.015em;
  line-height:1.1;
  margin:0 0 .6em;
}
h1{font-size:clamp(2.4rem,5.6vw,4.6rem);font-weight:400;letter-spacing:-.03em}
h2{font-size:clamp(1.9rem,3.4vw,3rem);font-weight:400;letter-spacing:-.025em}
h3{font-size:clamp(1.25rem,1.8vw,1.55rem);font-weight:500}
h4{font-size:1.1rem;font-weight:600;font-family:var(--sans);text-transform:uppercase;letter-spacing:.14em;color:var(--terracotta-d)}
p{margin:0 0 1em}
.lead{font-size:clamp(1.05rem,1.4vw,1.25rem);color:var(--muted);max-width:60ch}

/* ---------- Layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
section{padding:clamp(3.5rem,7vw,7rem) 0}
.grid{display:grid;gap:clamp(1.25rem,2.5vw,2rem)}
.cols-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.cols-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.cols-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
@media(max-width:820px){.split{grid-template-columns:1fr}}

/* ---------- Eyebrow ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:var(--sans);font-size:.78rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.22em;
  color:var(--terracotta-d);margin-bottom:1rem;
}
.eyebrow::before{content:"";display:inline-block;width:28px;height:2px;background:var(--terracotta)}
.dark .eyebrow{color:var(--ocre)}
.dark .eyebrow::before{background:var(--ocre)}

/* ---------- Nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(251,247,241,.92);
  backdrop-filter:saturate(1.4) blur(14px);
  -webkit-backdrop-filter:saturate(1.4) blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:1rem var(--gutter);
  display:flex;align-items:center;justify-content:space-between;gap:1.5rem;
}
.brand{display:flex;align-items:center;gap:.85rem;font-family:var(--serif);color:var(--ink);font-weight:500}
.brand img{width:42px;height:auto}
.brand-txt{display:flex;flex-direction:column;line-height:1.1}
.brand-txt strong{font-size:1.05rem;letter-spacing:-.01em}
.brand-txt span{font-size:.72rem;font-family:var(--sans);text-transform:uppercase;letter-spacing:.18em;color:var(--muted);font-weight:500;margin-top:.15rem}

.nav-links{display:flex;align-items:center;gap:.25rem;font-size:.92rem}
.nav-links a{
  color:var(--ink);padding:.55rem .9rem;border-radius:8px;font-weight:500;
  transition:background .18s ease,color .18s ease;
}
.nav-links a:hover{background:var(--cream-2);color:var(--ink)}
.nav-links a.active{color:var(--terracotta-d);background:var(--cream-2)}
.nav-cta{
  padding:.65rem 1.1rem !important;background:var(--ink);color:var(--paper) !important;
  border-radius:999px !important;margin-left:.5rem;
}
.nav-cta:hover{background:var(--terracotta) !important;color:var(--paper) !important}

.burger{display:none;background:none;border:0;padding:.4rem;cursor:pointer;color:var(--ink)}
.burger svg{width:26px;height:26px}
@media(max-width:960px){
  .nav-links{
    position:fixed;inset:64px 0 auto 0;background:var(--paper);
    flex-direction:column;align-items:stretch;padding:1rem var(--gutter);
    gap:.15rem;border-bottom:1px solid var(--border);
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:.25s ease;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{padding:.85rem 1rem}
  .nav-cta{margin:.5rem 0 0;text-align:center}
  .burger{display:inline-flex}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.95rem 1.6rem;border-radius:999px;
  font-family:var(--sans);font-weight:600;font-size:.95rem;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  text-decoration:none;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--terracotta);color:var(--paper)}
.btn-primary:hover{background:var(--terracotta-d);color:var(--paper);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.dark .btn-ghost{color:var(--paper);border-color:var(--paper)}
.dark .btn-ghost:hover{background:var(--paper);color:var(--ink)}
.btn-outline{background:transparent;color:var(--terracotta-d);border-color:var(--terracotta)}
.btn-outline:hover{background:var(--terracotta);color:var(--paper)}

.actions{display:flex;flex-wrap:wrap;gap:.85rem;margin-top:1.6rem}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:min(90vh,900px);
  background:radial-gradient(ellipse at 60% 20%,#1e3358 0%,#0f1a2e 55%,#08111f 100%);
  color:var(--paper);
  display:flex;align-items:center;
  overflow:hidden;isolation:isolate;
}
.hero .wrap{position:relative;z-index:3;padding-top:5rem;padding-bottom:5rem}
.hero h1{color:var(--paper);max-width:19ch}
.hero h1 em{font-style:italic;color:var(--ocre);font-weight:400}
.hero .lead{color:rgba(246,239,230,.82);font-size:clamp(1.1rem,1.45vw,1.35rem);max-width:52ch;margin-top:1.5rem}
.hero-cracks{
  position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.6;
}
.hero-grain{
  position:absolute;inset:0;z-index:2;pointer-events:none;
  background-image:radial-gradient(rgba(197,142,63,.055) 1px,transparent 1px);
  background-size:3px 3px;mix-blend-mode:overlay;
}
.hero-figures{
  position:absolute;right:-8%;top:-10%;bottom:-10%;width:60%;z-index:1;
  background:linear-gradient(210deg,rgba(183,74,43,.28) 0%,transparent 60%);
  mask-image:radial-gradient(circle at 60% 50%,#000 40%,transparent 75%);
  -webkit-mask-image:radial-gradient(circle at 60% 50%,#000 40%,transparent 75%);
}
.hero-stat{
  position:absolute;bottom:2rem;right:var(--gutter);z-index:3;
  padding:1.3rem 1.7rem;border:1px solid var(--border-dark);
  background:rgba(15,26,46,.5);backdrop-filter:blur(10px);border-radius:12px;
  max-width:320px;color:var(--paper);
}
.hero-stat .num{font-family:var(--serif);font-size:2.6rem;color:var(--ocre);line-height:1;display:block}
.hero-stat .lbl{font-size:.82rem;text-transform:uppercase;letter-spacing:.18em;color:rgba(246,239,230,.72);margin-top:.4rem;display:block}
@media(max-width:820px){.hero-stat{position:static;margin-top:2.5rem;max-width:none}}

/* Crack SVG animation */
@keyframes drawCrack{
  from{stroke-dashoffset:1400}
  to{stroke-dashoffset:0}
}

/* ---------- Sections thème sombre ---------- */
.dark{background:var(--ink);color:var(--paper)}
.dark h1,.dark h2,.dark h3{color:var(--paper)}
.dark .lead{color:rgba(246,239,230,.75)}
.dark p{color:rgba(246,239,230,.82)}

/* ---------- Bandeau chiffres ---------- */
.stats{
  background:var(--ink);color:var(--paper);
  border-top:1px solid var(--border-dark);border-bottom:1px solid var(--border-dark);
}
.stats .grid{padding:2.5rem 0;text-align:center}
.stat .n{font-family:var(--serif);font-size:clamp(2.4rem,4vw,3.4rem);color:var(--ocre);display:block;line-height:1}
.stat .l{margin-top:.5rem;font-size:.9rem;text-transform:uppercase;letter-spacing:.18em;color:rgba(246,239,230,.7)}

/* ---------- Cards ---------- */
.card{
  background:var(--paper);border:1px solid var(--border);
  border-radius:var(--radius);padding:1.9rem;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--terracotta);transform:scaleY(0);transform-origin:top;
  transition:transform .35s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:transparent}
.card:hover::before{transform:scaleY(1)}
.card .num-badge{
  font-family:var(--serif);font-size:2.2rem;color:var(--terracotta);
  display:block;margin-bottom:.5rem;line-height:1;
}
.card h3{margin-bottom:.5rem}
.card p{color:var(--muted);margin:0;font-size:.96rem}
.dark .card{background:rgba(246,239,230,.04);border-color:var(--border-dark);color:var(--paper)}
.dark .card h3{color:var(--paper)}
.dark .card p{color:rgba(246,239,230,.72)}

/* ---------- Callout ---------- */
.callout{
  background:var(--cream);border-left:4px solid var(--terracotta);
  padding:1.5rem 1.8rem;border-radius:0 var(--radius) var(--radius) 0;
  margin:1.75rem 0;
}
.callout strong{color:var(--terracotta-d)}
.callout.warn{background:#fdf3e6;border-color:var(--ocre)}
.callout.warn strong{color:var(--ocre-d)}
.dark .callout{background:rgba(246,239,230,.05);color:var(--paper)}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding:1rem 0 1rem 1.5rem;border-left:2px solid var(--border)}
.dark .timeline{border-left-color:var(--border-dark)}
.timeline-item{position:relative;padding:0 0 2.2rem 1.5rem}
.timeline-item::before{
  content:"";position:absolute;left:-1.6rem;top:.3rem;width:14px;height:14px;
  background:var(--terracotta);border:3px solid var(--paper);border-radius:50%;
  box-shadow:0 0 0 1px var(--border);
}
.dark .timeline-item::before{border-color:var(--ink);box-shadow:0 0 0 1px var(--border-dark)}
.timeline-item time{
  display:block;font-family:var(--sans);font-size:.78rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.15em;color:var(--terracotta-d);margin-bottom:.4rem;
}
.dark .timeline-item time{color:var(--ocre)}
.timeline-item h4{margin-bottom:.35rem;text-transform:none;letter-spacing:0;color:var(--ink);font-family:var(--serif);font-size:1.2rem;font-weight:500}
.dark .timeline-item h4{color:var(--paper)}
.timeline-item p{color:var(--muted);margin:0;font-size:.94rem}
.dark .timeline-item p{color:rgba(246,239,230,.72)}

/* ---------- Steps ---------- */
.step{
  display:grid;grid-template-columns:auto 1fr;gap:1.5rem;align-items:start;
  padding:2rem 0;border-bottom:1px solid var(--border);
}
.step:last-child{border-bottom:0}
.step-num{
  width:64px;height:64px;border-radius:50%;background:var(--ink);color:var(--ocre);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:1.7rem;font-weight:400;
  flex-shrink:0;
}
.step h3{margin-bottom:.4rem}
.step p{color:var(--muted);margin:0 0 .6rem}
.step ul{margin:.4rem 0 0;padding-left:1.2rem;color:var(--muted)}
.step ul li{margin-bottom:.3rem}

/* ---------- Press logos & links ---------- */
.press{
  display:flex;flex-wrap:wrap;gap:1rem 2rem;align-items:center;justify-content:center;
  padding:2rem 0;color:var(--muted);font-size:.9rem;
}
.press span{
  font-family:var(--serif);font-style:italic;font-size:1.1rem;color:var(--muted);
  padding:.4rem 1rem;border:1px solid var(--border);border-radius:6px;
}
.dark .press span{color:rgba(246,239,230,.65);border-color:var(--border-dark)}

/* ---------- Quote ---------- */
.quote{
  padding:2.5rem;border-radius:var(--radius);
  background:linear-gradient(135deg,var(--ink) 0%,var(--ink-3) 100%);
  color:var(--paper);position:relative;
}
.quote::before{
  content:"“";position:absolute;top:-10px;left:20px;
  font-family:var(--serif);font-size:6rem;color:var(--ocre);line-height:1;
}
.quote blockquote{
  font-family:var(--serif);font-size:clamp(1.2rem,1.5vw,1.5rem);
  line-height:1.4;margin:0;font-style:italic;font-weight:400;
}
.quote cite{
  display:block;margin-top:1.5rem;font-family:var(--sans);font-style:normal;
  font-size:.9rem;color:var(--ocre);text-transform:uppercase;letter-spacing:.15em;
}

/* ---------- Formulaire ---------- */
form{display:grid;gap:1.1rem}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:640px){.form-row{grid-template-columns:1fr}}
label{font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--ink);display:block;margin-bottom:.35rem}
input,textarea,select{
  width:100%;padding:.85rem 1rem;font-family:var(--sans);font-size:1rem;
  background:var(--paper);color:var(--ink);
  border:1px solid var(--border);border-radius:8px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
input:focus,textarea:focus,select:focus{
  outline:0;border-color:var(--terracotta);
  box-shadow:0 0 0 4px rgba(183,74,43,.15);
}
textarea{min-height:150px;resize:vertical}

/* ---------- Faits — page-level ---------- */
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}
.fact{padding:1.6rem;border:1px solid var(--border);border-radius:var(--radius)}
.fact .big{font-family:var(--serif);font-size:2.4rem;color:var(--terracotta);line-height:1;display:block}
.fact .txt{margin-top:.6rem;color:var(--muted);font-size:.94rem}

/* ---------- Page hero (secondary) ---------- */
.page-hero{
  background:var(--ink);color:var(--paper);
  padding:clamp(4rem,8vw,7rem) 0 clamp(3rem,5vw,4rem);
  position:relative;overflow:hidden;isolation:isolate;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 800 200'><path d='M0 120 L120 90 L180 130 L260 60 L340 110 L440 40 L520 90 L620 30 L720 80 L800 50' stroke='%23c58e3f' stroke-width='1' fill='none' opacity='.15'/><path d='M0 160 L100 140 L200 170 L320 120 L420 150 L540 100 L640 130 L740 90 L800 110' stroke='%23b74a2b' stroke-width='1' fill='none' opacity='.15'/></svg>");
  background-size:cover;background-position:bottom;
}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{color:var(--paper);max-width:22ch;margin-bottom:.5rem}
.page-hero .lead{color:rgba(246,239,230,.75);max-width:52ch}
.crumbs{font-size:.85rem;color:rgba(246,239,230,.55);margin-bottom:1.2rem;text-transform:uppercase;letter-spacing:.18em}
.crumbs a{color:rgba(246,239,230,.75)}
.crumbs a:hover{color:var(--ocre)}

/* ---------- Illustrations SVG conteneur ---------- */
.illus{
  width:100%;height:auto;display:block;
  border-radius:var(--radius);overflow:hidden;
  background:var(--cream);border:1px solid var(--border);
}
.dark .illus{background:rgba(246,239,230,.04);border-color:var(--border-dark)}

/* ---------- Footer ---------- */
footer{
  background:var(--ink);color:rgba(246,239,230,.7);padding:4rem 0 2rem;
  border-top:1px solid var(--border-dark);
}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2.5rem}
@media(max-width:820px){.foot{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot{grid-template-columns:1fr}}
footer h5{
  font-family:var(--sans);font-size:.78rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.2em;color:var(--ocre);
  margin:0 0 1rem;
}
footer a{color:rgba(246,239,230,.7)}
footer a:hover{color:var(--paper)}
footer ul{list-style:none;padding:0;margin:0}
footer ul li{margin-bottom:.5rem;font-size:.92rem}
footer .foot-brand{display:flex;gap:.85rem;align-items:flex-start}
footer .foot-brand img{width:48px}
footer .foot-brand p{color:rgba(246,239,230,.6);font-size:.9rem;margin:.4rem 0 0}
.legal{
  border-top:1px solid var(--border-dark);
  margin-top:3rem;padding-top:1.5rem;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;
  font-size:.8rem;color:rgba(246,239,230,.5);
}
.social{display:flex;gap:.5rem;margin-top:1rem}
.social a{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border-dark);color:rgba(246,239,230,.75);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.social a:hover{background:var(--ocre);color:var(--ink);border-color:var(--ocre)}
.social svg{width:16px;height:16px}

/* ---------- Utilities ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}
.mono{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:.85em}
.divider{height:1px;background:var(--border);margin:2.5rem 0}
.dark .divider{background:var(--border-dark)}
.center{text-align:center}
.mt-0{margin-top:0}
.mb-0{margin-bottom:0}

/* ---------- Accessibilité ---------- */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation:none !important;transition:none !important;scroll-behavior:auto !important;
  }
}
:focus-visible{outline:3px solid var(--ocre);outline-offset:3px;border-radius:4px}