/* =================================================================
   LE CARRÉ DES ENTREPRENEURS — Feuille de style
   Identité : la richesse du blanc, le rouge en signature,
   la taupe en appui, et le carré comme motif récurrent.
   ================================================================= */

:root{
  --rouge:        #b0142b;
  --rouge-fonce:  #8c0f22;
  --taupe:        #8b7e66;
  --taupe-clair:  #c7bca1;
  --beige:        #f4f1ea;
  --beige-fonce:  #e9e4d8;
  --blanc:        #ffffff;
  --encre:        #26241f;
  --gris:         #6c685e;

  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:  "Inter", system-ui, -apple-system, sans-serif;

  --maxw: 1140px;
  --pad:  clamp(1.25rem, 4vw, 3rem);
  --r:    2px; /* angles francs, à l'image du carré */
}

/* ---------- Base ---------- */
*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--sans);
  color:var(--encre);
  background:var(--blanc);
  font-size:clamp(1rem,0.96rem + 0.25vw,1.075rem);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:var(--rouge); text-decoration:none; }
a:hover{ text-decoration:underline; text-underline-offset:3px; }

h1,h2,h3,h4{ font-family:var(--serif); font-weight:500; line-height:1.12; margin:0; letter-spacing:-0.01em; }

.wrap{ width:min(100% - 2*var(--pad), var(--maxw)); margin-inline:auto; }

.skip{
  position:absolute; left:-999px; top:0; background:var(--encre); color:#fff;
  padding:.6rem 1rem; z-index:200;
}
.skip:focus{ left:1rem; top:1rem; }

:focus-visible{ outline:3px solid var(--rouge); outline-offset:2px; }

/* L'eyebrow : un petit carré rouge + un libellé en capitales */
.eyebrow{
  display:inline-flex; align-items:center; gap:.6rem;
  font-family:var(--sans); font-size:.72rem; font-weight:600;
  text-transform:uppercase; letter-spacing:.22em; color:var(--taupe);
  margin:0 0 1.1rem;
}
.eyebrow::before{
  content:""; width:.62rem; height:.62rem; background:var(--rouge); flex:none;
}

/* ---------- En-tête ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--beige-fonce);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; min-height:74px; gap:1rem; }

.brand{ display:flex; align-items:center; gap:.75rem; color:var(--encre); }
.brand:hover{ text-decoration:none; }
.brand-mark{ display:inline-flex; flex:none; }
.brand-text{ display:flex; flex-direction:column; line-height:1; }
.brand-line{ font-family:var(--serif); font-size:1.3rem; font-weight:600; }
.brand-sub{
  font-family:var(--sans); font-size:.62rem; font-weight:600;
  text-transform:uppercase; letter-spacing:.24em; color:var(--taupe); margin-top:.28rem;
}

.nav{ display:flex; align-items:center; gap:.35rem; }
.nav-link{
  color:var(--encre); font-size:.92rem; font-weight:500;
  padding:.5rem .8rem; border-radius:var(--r); position:relative;
}
.nav-link:hover{ text-decoration:none; color:var(--rouge); }
.nav-link.is-active{ color:var(--rouge); }
.nav-link.is-active::after{
  content:""; position:absolute; left:.8rem; right:.8rem; bottom:.15rem;
  height:2px; background:var(--rouge);
}

.burger{
  display:none; flex-direction:column; gap:5px; background:none; border:0;
  cursor:pointer; padding:.5rem;
}
.burger span{ width:24px; height:2px; background:var(--encre); transition:.25s; }
.burger[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.burger[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero{ padding:clamp(3.5rem,8vw,6.5rem) 0 clamp(3rem,6vw,5rem); }
.hero-grid{
  display:grid; grid-template-columns:1.15fr .85fr; gap:clamp(2rem,5vw,4.5rem); align-items:center;
}
.hero h1{
  font-size:clamp(2.4rem,1.6rem + 3.2vw,4rem);
  margin:.4rem 0 1.2rem;
}
.hero h1 em{ font-style:italic; color:var(--rouge); }
.hero-lead{ font-size:clamp(1.05rem,1rem + .4vw,1.25rem); color:var(--gris); max-width:34ch; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:.9rem; margin-top:2rem; }

/* La signature : composition de carrés qui rappelle le logo */
.mosaic{
  display:grid; grid-template-columns:repeat(3,1fr); grid-template-rows:repeat(3,1fr);
  gap:10px; aspect-ratio:1; width:100%;
}
.mosaic span{ border-radius:var(--r); animation:pop .7s cubic-bezier(.2,.8,.2,1) both; }
.mosaic span:nth-child(1){ grid-column:1/3; grid-row:1/3; background:var(--taupe-clair); animation-delay:.05s; }
.mosaic span:nth-child(2){ grid-column:3;   grid-row:1/3; background:var(--taupe); animation-delay:.15s; }
.mosaic span:nth-child(3){ grid-column:1;   grid-row:3;   background:var(--rouge); animation-delay:.25s; }
.mosaic span:nth-child(4){ grid-column:2/4; grid-row:3;   background:var(--beige-fonce); animation-delay:.35s; }
@keyframes pop{ from{ opacity:0; transform:scale(.85); } to{ opacity:1; transform:scale(1); } }

/* ---------- Boutons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.5rem;
  font-family:var(--sans); font-weight:600; font-size:.95rem;
  padding:.85rem 1.6rem; border-radius:var(--r); border:1.5px solid transparent;
  cursor:pointer; transition:transform .15s ease, background .2s ease;
}
.btn:hover{ text-decoration:none; transform:translateY(-2px); }
.btn-primary{ background:var(--rouge); color:#fff; }
.btn-primary:hover{ background:var(--rouge-fonce); color:#fff; }
.btn-ghost{ background:transparent; color:var(--encre); border-color:var(--taupe-clair); }
.btn-ghost:hover{ border-color:var(--rouge); color:var(--rouge); }

/* ---------- Sections génériques ---------- */
.section{ padding:clamp(3rem,7vw,5.5rem) 0; }
.section-beige{ background:var(--beige); }
.section-encre{ background:var(--encre); color:#f3efe7; }
.section-encre h2{ color:#fff; }
.section-encre .eyebrow{ color:var(--taupe-clair); }

.section-head{ max-width:60ch; margin-bottom:2.6rem; }
.section-head h2{ font-size:clamp(1.8rem,1.4rem + 1.7vw,2.6rem); }
.section-head p{ color:var(--gris); margin-top:1rem; }
.section-encre .section-head p{ color:#cfc8ba; }

/* ---------- Bandeau citation ---------- */
.quote{ text-align:center; padding:clamp(3.5rem,8vw,6rem) 0; }
.quote blockquote{
  margin:0 auto; max-width:24ch;
  font-family:var(--serif); font-style:italic;
  font-size:clamp(1.8rem,1.2rem + 3vw,3.4rem); line-height:1.2;
}
.quote blockquote span{ color:var(--rouge); font-style:normal; }
.quote cite{ display:block; margin-top:1.4rem; font-family:var(--sans); font-style:normal;
  font-size:.78rem; letter-spacing:.22em; text-transform:uppercase; color:var(--taupe); }

/* ---------- Les quatre coins (grille 2x2) ---------- */
.coins{ display:grid; grid-template-columns:repeat(2,1fr); gap:1.5rem; }
.coin{
  position:relative; background:var(--blanc); border:1px solid var(--beige-fonce);
  border-radius:var(--r); padding:2.2rem 2rem 2.4rem; overflow:hidden;
  transition:border-color .2s ease, transform .2s ease;
}
.coin:hover{ border-color:var(--rouge); transform:translateY(-3px); }
.coin::before{
  content:""; position:absolute; top:0; left:0; width:46px; height:46px;
  background:var(--rouge);
  clip-path:polygon(0 0, 100% 0, 0 100%);
  opacity:.9;
}
.coin .coin-index{
  position:relative; font-family:var(--serif); font-size:.85rem; color:#fff;
  display:block; margin:-.4rem 0 1.4rem; padding-left:.1rem;
}
.coin h3{ font-size:1.35rem; margin-bottom:.5rem; }
.coin .coin-accroche{ color:var(--rouge); font-weight:600; font-size:.92rem; margin:0 0 1rem; }
.coin p{ color:var(--gris); margin:0; }
.coin-illus{
  margin-top:1.6rem; display:inline-flex; width:54px; height:54px; align-items:center; justify-content:center;
  background:var(--beige); border-radius:var(--r);
}
.coin-illus svg{ width:30px; height:30px; }

/* ---------- Texte long (esprit) ---------- */
.prose{ max-width:62ch; }
.prose p{ margin:0 0 1.3rem; }
.prose p.lead{ font-size:1.2rem; color:var(--encre); }
.prose .signature{
  margin-top:2.5rem; display:flex; flex-wrap:wrap; gap:2.5rem;
  padding-top:1.6rem; border-top:1px solid var(--beige-fonce);
}
.prose .signature div strong{ display:block; font-family:var(--serif); font-size:1.05rem; }
.prose .signature div span{ font-size:.82rem; color:var(--taupe); text-transform:uppercase; letter-spacing:.14em; }

.split{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(2rem,5vw,4rem); align-items:start; }
.aside-card{
  background:var(--beige); border-radius:var(--r); padding:2rem;
  border-left:4px solid var(--rouge);
}
.aside-card h3{ font-size:1.2rem; margin-bottom:1rem; }
.aside-card ul{ margin:0; padding:0; list-style:none; }
.aside-card li{ padding:.55rem 0; border-bottom:1px solid var(--beige-fonce); display:flex; gap:.7rem; }
.aside-card li:last-child{ border-bottom:0; }
.aside-card li::before{ content:""; width:.55rem; height:.55rem; background:var(--rouge); flex:none; margin-top:.5rem; }

/* ---------- Formulaires ---------- */
.form{ display:grid; gap:1.1rem; max-width:560px; }
.field{ display:grid; gap:.4rem; }
.field label{ font-size:.85rem; font-weight:600; color:var(--encre); }
.field label .req{ color:var(--rouge); }
.field input, .field textarea{
  font-family:var(--sans); font-size:1rem; color:var(--encre);
  padding:.8rem .9rem; border:1.5px solid var(--beige-fonce); border-radius:var(--r);
  background:var(--blanc); transition:border-color .15s ease;
}
.field input:focus, .field textarea:focus{ outline:none; border-color:var(--rouge); }
.field textarea{ min-height:140px; resize:vertical; }
.field-2{ display:grid; grid-template-columns:1fr 1fr; gap:1.1rem; }
.hp{ position:absolute; left:-9999px; }

.alert{ padding:1rem 1.2rem; border-radius:var(--r); margin-bottom:1.4rem; font-size:.95rem; }
.alert-ok{ background:#eef5ed; border-left:4px solid #4a7a3c; color:#2f4f26; }
.alert-err{ background:#fbecee; border-left:4px solid var(--rouge); color:var(--rouge-fonce); }
.alert-err ul{ margin:.4rem 0 0; padding-left:1.1rem; }

/* ---------- Bloc contact (coordonnées) ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(2rem,5vw,4rem); align-items:start; }
.info-list{ list-style:none; margin:0; padding:0; display:grid; gap:1.4rem; }
.info-list li{ display:flex; gap:1rem; align-items:flex-start; }
.info-ico{ width:38px; height:38px; flex:none; background:var(--rouge); display:grid; place-items:center; border-radius:var(--r); }
.info-ico svg{ width:18px; height:18px; fill:#fff; }
.info-list strong{ display:block; font-size:.78rem; text-transform:uppercase; letter-spacing:.16em; color:var(--taupe); }
.info-list a{ color:var(--encre); }
.info-list a:hover{ color:var(--rouge); }

/* ---------- CTA bas de page ---------- */
.cta-band{ text-align:center; }
.cta-band h2{ font-size:clamp(1.8rem,1.3rem + 2.2vw,3rem); max-width:18ch; margin:0 auto 1.3rem; }
.cta-band p{ color:#cfc8ba; max-width:48ch; margin:0 auto 2rem; }

/* ---------- Pied de page ---------- */
.site-footer{ background:var(--encre); color:#cfc8ba; padding:clamp(3rem,6vw,4.5rem) 0 1.5rem; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:2.5rem; }
.footer-name{ font-family:var(--serif); font-size:1.35rem; color:#fff; margin:.9rem 0 .6rem; line-height:1.1; }
.footer-name span{ font-size:.7rem; font-family:var(--sans); text-transform:uppercase; letter-spacing:.22em; color:var(--taupe-clair); }
.footer-tag{ font-size:.92rem; max-width:30ch; font-style:italic; }
.footer-col h3{ font-family:var(--sans); font-size:.74rem; text-transform:uppercase; letter-spacing:.18em; color:var(--taupe-clair); margin-bottom:1rem; }
.footer-col address{ font-style:normal; font-size:.92rem; line-height:1.7; }
.footer-col a{ color:#cfc8ba; }
.footer-col a:hover{ color:#fff; }
.footer-people{ list-style:none; margin:0; padding:0; display:grid; gap:.9rem; }
.footer-people strong{ color:#fff; font-weight:600; display:block; font-size:.95rem; }
.footer-people span{ font-size:.8rem; color:var(--taupe-clair); }
.footer-links{ list-style:none; margin:0; padding:0; display:grid; gap:.6rem; font-size:.9rem; }
.footer-bottom{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:.6rem;
  margin-top:3rem; padding-top:1.4rem; border-top:1px solid rgba(255,255,255,.12);
  font-size:.82rem; color:var(--taupe-clair);
}
.footer-bottom a{ color:var(--taupe-clair); }

/* ---------- Responsive ---------- */
@media (max-width:880px){
  .hero-grid{ grid-template-columns:1fr; }
  .mosaic{ max-width:360px; margin-inline:auto; order:-1; }
  .split, .contact-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:680px){
  .burger{ display:flex; }
  .nav{
    position:fixed; inset:74px 0 auto 0; flex-direction:column; align-items:stretch;
    background:#fff; border-bottom:1px solid var(--beige-fonce); padding:.5rem var(--pad) 1.2rem;
    transform:translateY(-120%); transition:transform .28s ease; gap:0;
  }
  .nav.open{ transform:translateY(0); }
  .nav-link{ padding:.9rem .4rem; border-bottom:1px solid var(--beige); }
  .nav-link.is-active::after{ display:none; }
  .coins{ grid-template-columns:1fr; }
  .field-2{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
}

@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto; }
}