:root{--bg:#0b0c0e;--panel:#15171b;--text:#f5f5f5;--muted:#b5bac3;--red:#e31c25;--line:#2a2e35;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.55}
a{color:inherit;text-decoration:none}img{width:100%;display:block;object-fit:cover}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--red);outline-offset:2px}
.wrap{width:min(1180px,92%);margin:auto}
header{position:sticky;top:0;z-index:20;background:rgba(11,12,14,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{font-size:30px;font-weight:900;letter-spacing:1px}.logo span{color:var(--red)}
nav{display:flex;gap:24px;align-items:center;font-weight:700;font-size:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--red);color:white;padding:14px 20px;border-radius:8px;font-weight:800;border:1px solid var(--red)}
.btn.alt{background:transparent;border-color:#666}
.hero{min-height:660px;display:grid;align-items:center;background:
  linear-gradient(90deg,rgba(0,0,0,.92) 0%,rgba(0,0,0,.8) 46%,rgba(0,0,0,.42) 100%),
  url('../batiment.jpg') center 65%/cover no-repeat}
.hero h1{font-size:clamp(42px,7vw,82px);line-height:.95;margin:0 0 22px;max-width:850px;text-transform:uppercase}
.hero h1 em{font-style:normal;color:var(--red)}
.services-line{font-size:15px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--red);margin:0 0 16px}
.services-line--spaced{margin-top:14px}
.hero p{font-size:21px;color:#e5e7eb;max-width:700px;margin-bottom:30px}
.hero .actions .btn.alt{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.55);backdrop-filter:blur(2px)}
.hero .actions .btn.alt:hover{background:rgba(255,255,255,.14)}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:46px;max-width:800px}
.trust div{border-left:3px solid var(--red);padding-left:12px;color:#ddd;font-weight:700}
section{padding:86px 0}.light{background:#f3f4f6;color:#111}
.eyebrow{color:var(--red);font-weight:900;text-transform:uppercase;letter-spacing:1.5px;font-size:13px}
h2{font-size:clamp(34px,5vw,54px);line-height:1.05;margin:8px 0 18px}
.intro{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center}
.intro img{height:420px;border-radius:14px}
.intro img.workshop{object-position:center 30%}
.intro p{font-size:18px;color:#444}
.services{background:#101216}
.section-head{text-align:center;max-width:760px;margin:0 auto 36px}.section-head p{color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.2s}
.card:hover{transform:translateY(-3px);border-color:#4a4f58}
.card img{height:170px}.card .txt{padding:18px}.card h3{margin:0 0 8px;font-size:19px}.card p{margin:0;color:var(--muted);font-size:14px}
.pro{background:linear-gradient(135deg,#1c1f24,#0d0e10)}
.probox{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;border:1px solid var(--line);padding:36px;border-radius:14px}
.probox p{color:var(--muted);max-width:760px}
.contact{background:#efefef;color:#111}.contactbox{display:grid;grid-template-columns:.85fr 1.15fr;gap:46px;align-items:start}
.contactcard{background:#fff;border-radius:14px;padding:28px;box-shadow:0 8px 30px rgba(0,0,0,.08)}
.phone{font-size:34px;font-weight:900;color:var(--red)}
.contact-direct{margin-top:26px;padding-top:22px;border-top:1px solid #e5e5e5}
.contact-direct p{color:#555;margin:4px 0 10px}
form.devis label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:700;margin-bottom:16px;color:#222}
form.devis label .req{color:var(--red)}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
form.devis input[type=text],form.devis input[type=email],form.devis input[type=tel],form.devis textarea{
  font:inherit;font-weight:500;padding:12px 14px;border:1px solid #d7d7d7;border-radius:8px;background:#fafafa;color:#111;width:100%}
form.devis input:focus,form.devis textarea:focus{outline:none;border-color:var(--red);background:#fff;box-shadow:0 0 0 3px rgba(227,28,37,.12)}
form.devis textarea{resize:vertical;min-height:110px}
.file-field{border:1.5px dashed #cfcfcf;border-radius:10px;padding:16px;background:#fafafa}
.file-field input[type=file]{font-size:13px}
.file-hint{font-weight:500;font-size:12.5px;color:#777}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
form.devis .btn{border:none;cursor:pointer;width:100%}
form.devis .btn[disabled]{opacity:.6;cursor:wait}
.form-status{margin-top:14px;font-weight:700;font-size:14px;min-height:20px}
.form-status.ok{color:#1a7a34}
.form-status.err{color:var(--red)}
footer{padding:28px 0;border-top:1px solid var(--line);color:#8f96a3;font-size:14px}
footer a:hover{color:var(--white)}
@media(max-width:900px){nav a:not(.btn){display:none}.intro,.contactbox,.probox{grid-template-columns:1fr}.grid{grid-template-columns:repeat(2,1fr)}.trust{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.grid{grid-template-columns:1fr}.hero{min-height:600px}.trust{grid-template-columns:1fr}.nav{height:68px}.logo{font-size:26px}.btn{padding:12px 15px}.intro img{height:300px}.f-row{grid-template-columns:1fr}}

/* Pages légales (mentions-legales.html, politique-confidentialite.html) */
.legal{max-width:820px;margin:0 auto;padding:70px 0 100px}
.legal h1{font-size:clamp(28px,4vw,40px);margin-bottom:8px}
.legal .updated{color:var(--muted);font-size:14px;margin-bottom:40px}
.legal h2{font-size:22px;margin:40px 0 14px;color:var(--red)}
.legal p, .legal li{color:#d7d9dc;font-size:15.5px;line-height:1.7}
.legal ul{padding-left:20px}
.legal a{color:#fff;text-decoration:underline}
.legal .fill{background:rgba(227,28,37,.15);color:#ff9d97;padding:1px 6px;border-radius:4px;font-weight:700}
.legal .back{display:inline-block;margin-bottom:30px;color:var(--red);font-weight:700}
.legal table{width:100%;border-collapse:collapse;margin:16px 0}
.legal th,.legal td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:14.5px;color:#d7d9dc}
.legal th{color:#fff}