/* Open Sans everywhere */
:root{
  --bg:#0f0f0f;
  --panel:#151515;
  --muted:#9d8a81; /* doré/caramel */
  --text:#e6e6e6;
  --text-dim:#bdbdbd;
  --accent:#b89483;
  --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family: 'Open Sans', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background: var(--bg) url("hero.jpg") center/cover fixed no-repeat;
}

/* Header */
.header{
  position:sticky; top:0; z-index:50;
  background:rgba(10,10,10,.92);
  backdrop-filter: blur(6px);
  border-bottom:1px solid #242424;
}
.container{
  max-width:1100px; margin:0 auto; padding:0 18px;
}
.header-row{
  display:flex; align-items:center; justify-content:space-between;
  height:70px;
}
.header-logo{display:flex; align-items:center; gap:.75rem}
.header-logo img{
  height:46px; width:auto; display:block; /* plus grand & lisible */
}
.nav{display:flex; align-items:center; gap:28px}
.nav a{
  color:var(--text); text-decoration:none; font-weight:600;
}
.cta{
  background:var(--accent); color:#111; padding:.65rem 1rem; border-radius:999px; font-weight:800; text-decoration:none;
}

/* Hero homepage */
.hero{
  padding:110px 0 80px;
  background: linear-gradient(180deg, rgba(0,0,0,0.55), rgba(0,0,0,0.75));
}
h1{font-size: clamp(2rem, 4vw + .5rem, 3.4rem); margin:0 0 10px}
.lead{font-size: clamp(1rem, 1.3vw + .5rem, 1.25rem); color:var(--text-dim)}
.btns{display:flex; gap:.75rem; flex-wrap:wrap; margin-top:22px}
.btn{background:#1d1d1d; color:var(--text); padding:.7rem 1rem; border-radius:999px; text-decoration:none; border:1px solid #2a2a2a}
.btn.primary{background:var(--accent); color:#111; border:none; font-weight:800}

/* Cards */
.grid{display:grid; gap:18px; grid-template-columns:repeat(12,1fr); margin:40px 0}
.card{background:rgba(18,18,18,.86); border:1px solid #242424; border-radius:var(--radius); padding:22px}
.card h2{margin:0 0 .6rem; font-size:1.6rem}
.card p{margin:.5rem 0; color:var(--text-dim)}
.span-6{grid-column:span 6}
.span-12{grid-column:span 12}

/* Footer */
footer{border-top:1px solid #242424; background:rgba(10,10,10,.9); padding:28px 0; margin-top:50px; font-size:.95rem}
footer a{color:var(--muted); text-decoration:none}

/* DEVIS page */
main{padding:34px 0}
.page-title{font-size:2.2rem; margin:0 0 6px}
.page-sub{margin:0 0 28px; color:var(--text-dim)}

.form{display:grid; grid-template-columns:repeat(12,1fr); gap:16px}
.form .field{grid-column:span 6}
.form .field.full{grid-column:span 12}
.field label{display:block; margin-bottom:6px; color:var(--muted); font-weight:700}
.field input,.field textarea{
  width:100%; padding:.75rem .9rem; border-radius:.7rem; border:1px solid #333; background:#151515; color:var(--text);
}
.field textarea{min-height:120px; resize:vertical}

/* Pièces à joindre */
.pieces-a-joindre{grid-column:span 12}
.pieces-a-joindre ul{list-style:none; padding-left:0; margin:0}
.pieces-a-joindre .doc-row{
  display:grid; grid-template-columns:1.6rem 1fr; gap:.75rem 1rem; align-items:start; margin-bottom:1rem;
}
.pieces-a-joindre input[type="checkbox"]{width:1.15rem; height:1.15rem; cursor:pointer; margin-top:.25rem}
.pieces-a-joindre label{cursor:pointer; line-height:1.4}
.pieces-a-joindre .upload{display:none; grid-column:2}
.pieces-a-joindre input[type="checkbox"]:checked ~ .upload{display:block}
.pieces-a-joindre .upload input[type="file"]{
  width:100%; padding:.6rem .75rem; border-radius:.6rem; border:1px solid #3a3a3a; background:#191919; color:#ddd;
}

/* Checkbox consent + submit */
.consent{grid-column:span 12; display:flex; align-items:center; gap:.6rem; font-size:.95rem}
.submit{grid-column:span 12}

.calendly{grid-column:span 12; margin-top:22px}
.calendly-inline-widget{min-height:720px}

/* Responsive */
@media (max-width: 820px){
  .form .field{grid-column:span 12}
  .span-6{grid-column:span 12}
}