/* ===== ELEC74 — style.css (mobile-first) ===== */
:root{
  --primary:#0d3b66;
  --primary-dark:#0a2e50;
  --accent:#f4a300;
  --secondary:#1f6feb;
  --bg:#f6f4ef;
  --bg-alt:#eef1f5;
  --card:#ffffff;
  --text:#1c2430;
  --muted:#5a6472;
  --border:#e2e0d8;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 28px rgba(13,59,102,.10);
  --serif:ui-serif,Georgia,"Iowan Old Style","Palatino Linotype","Book Antiqua",serif;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
  font-size:16px;
  padding-bottom:72px; /* callbar mobile */
  -webkit-text-size-adjust:100%;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
h1,h2,h3{font-family:var(--serif);line-height:1.08;letter-spacing:-.015em;color:var(--text)}
h2{font-size:clamp(1.6rem,5vw,2.4rem);margin:0 0 .6rem}
h3{font-size:1.2rem;margin:0 0 .4rem}
p{margin:0 0 1rem}

.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}

.skip-link{position:absolute;left:-999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:0}

:focus-visible{outline:3px solid var(--secondary);outline-offset:2px;border-radius:6px}

/* eyebrow */
.eyebrow{
  text-transform:uppercase;
  letter-spacing:.16em;
  font-size:.78rem;
  font-weight:700;
  color:var(--primary);
  margin:0 0 .5rem;
}
.eyebrow-light{color:var(--accent)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  font-family:var(--sans);font-weight:600;font-size:1rem;
  padding:14px 24px;border-radius:999px;border:2px solid transparent;
  min-height:48px;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;
  text-align:center;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-accent{background:var(--accent);color:#3a2600}
.btn-accent:hover{transform:translateY(-2px)}
.btn-block{width:100%}

/* header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(246,244,239,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:12px}
.logo{display:flex;align-items:center;gap:10px}
.logo-text{font-family:var(--serif);font-weight:700;font-size:1.35rem;color:var(--primary);letter-spacing:-.02em}
.logo-mark{display:flex}
.main-nav{display:none}
.header-cta{display:none}
.burger{display:flex;flex-direction:column;gap:5px;background:none;border:0;padding:12px;cursor:pointer;min-height:44px;min-width:44px;align-items:center;justify-content:center}
.burger span{width:24px;height:2px;background:var(--primary);border-radius:2px;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)}

.main-nav.open{
  display:block;position:absolute;top:64px;left:0;right:0;
  background:var(--bg);border-bottom:1px solid var(--border);box-shadow:var(--shadow);
}
.main-nav.open ul{list-style:none;margin:0;padding:8px 20px 16px}
.main-nav.open li a{display:block;padding:14px 4px;font-weight:600;border-bottom:1px solid var(--border);min-height:44px}

/* hero */
.hero{background:linear-gradient(180deg,#fff,var(--bg));padding:28px 0 40px}
.hero-inner{display:flex;flex-direction:column;gap:28px}
.hero h1{font-size:clamp(2.1rem,8vw,3rem);margin:.2rem 0 .8rem}
.hero-sub{font-size:1.08rem;color:var(--muted);max-width:60ch}
.hero-cta{display:flex;flex-direction:column;gap:12px;margin:6px 0 16px}
.reassure{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px 18px}
.reassure li{display:flex;align-items:center;gap:6px;font-size:.92rem;font-weight:600;color:var(--muted)}
.reassure svg{color:var(--accent)}
.hero-media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3}
.hero-media img{width:100%;height:100%;object-fit:cover}

/* stats */
.stats{background:var(--primary);color:#fff;padding:26px 0}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;text-align:center}
.stat{display:flex;flex-direction:column}
.stat-num{font-family:var(--serif);font-size:2rem;font-weight:700;color:var(--accent);line-height:1}
.stat-label{font-size:.85rem;opacity:.9;margin-top:4px}

/* sections */
.section{padding:52px 0}
.section-alt{background:var(--bg-alt)}
.section-intro{color:var(--muted);max-width:70ch;margin-bottom:1.8rem}

/* cards */
.cards{display:grid;grid-template-columns:1fr;gap:18px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px;box-shadow:0 2px 8px rgba(13,59,102,.05);transition:transform .2s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card-icon{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:14px;background:rgba(13,59,102,.09);color:var(--primary);margin-bottom:14px}
.card .price{font-weight:700;color:var(--primary);margin:0}

/* steps */
.steps{display:grid;grid-template-columns:1fr;gap:18px}
.step{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px}
.step-num{font-family:var(--serif);font-size:2.2rem;font-weight:700;color:var(--accent);display:block;line-height:1;margin-bottom:8px}

/* about */
.about-grid{display:flex;flex-direction:column;gap:28px}
.about-media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:3/4;max-height:520px}
.about-media img{width:100%;height:100%;object-fit:cover}
.about-text .btn{margin-top:8px}

/* urgence */
.urgence{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;padding:44px 0}
.urgence-inner{display:flex;flex-direction:column;gap:20px;align-items:flex-start}
.urgence h2{color:#fff}
.urgence p{color:rgba(255,255,255,.88);margin:0;max-width:60ch}

/* gallery */
.gallery{display:grid;grid-template-columns:1fr;gap:16px}
.gallery img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius);aspect-ratio:4/3;box-shadow:0 2px 8px rgba(13,59,102,.06)}

/* chips */
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.chips li{background:var(--card);border:1px solid var(--border);border-radius:999px;padding:8px 16px;font-size:.92rem;font-weight:600;color:var(--primary)}

/* faq */
.faq-list details{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:4px 18px;margin-bottom:12px}
.faq-list summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;position:relative;padding-right:32px;font-family:var(--serif);font-size:1.05rem}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";position:absolute;right:4px;top:12px;font-size:1.5rem;color:var(--accent);font-weight:400}
.faq-list details[open] summary::after{content:"–"}
.faq-list details p{margin:0 0 14px;color:var(--muted)}

/* contact */
.contact-grid{display:flex;flex-direction:column;gap:32px}
.contact-list{list-style:none;margin:0 0 16px;padding:0}
.contact-list li{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--border)}
.contact-list svg{color:var(--primary);flex-shrink:0}
.hours{width:100%;border-collapse:collapse;margin-top:22px;background:var(--card);border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--border)}
.hours caption{text-align:left;font-weight:700;padding:12px 14px;font-family:var(--serif);font-size:1.1rem}
.hours th,.hours td{text-align:left;padding:12px 14px;border-top:1px solid var(--border)}
.hours td{color:var(--muted)}

/* form */
.contact-form-wrap{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px 20px;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;margin-bottom:6px;font-size:.95rem}
.field input,.field textarea{
  width:100%;padding:13px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);
  font-family:var(--sans);font-size:16px;background:#fff;color:var(--text);
}
.field input:focus,.field textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(13,59,102,.12)}
.field-check{display:flex;align-items:flex-start;gap:10px}
.field-check input{width:20px;height:20px;margin-top:3px;flex-shrink:0}
.field-check label{font-weight:400;font-size:.9rem;color:var(--muted)}
.form-hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.form-status{margin:14px 0 0;font-weight:600;min-height:1.2em}
.form-status.ok{color:#1a7f4b}
.form-status.err{color:#c0392b}

/* footer */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.85);padding:44px 0 20px;margin-top:0}
.footer-inner{display:flex;flex-direction:column;gap:28px}
.site-footer h3{color:#fff;font-size:1rem;margin-bottom:10px}
.footer-logo{font-family:var(--serif);font-size:1.4rem;font-weight:700;color:#fff;display:block;margin-bottom:8px}
.site-footer a{color:rgba(255,255,255,.85)}
.site-footer a:hover{color:var(--accent)}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:8px}
.copyright{text-align:center;font-size:.82rem;opacity:.7;margin:28px 0 4px;border-top:1px solid rgba(255,255,255,.15);padding-top:18px}
.websaas{text-align:center;font-size:.8rem;opacity:.7;margin:0}
.websaas a{color:var(--accent)}

/* callbar mobile */
.callbar{position:fixed;bottom:0;left:0;right:0;z-index:120;display:flex;background:var(--primary-dark);box-shadow:0 -4px 18px rgba(0,0,0,.18)}
.callbar-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;padding:16px 8px;color:#fff;font-weight:700;font-size:1rem;min-height:56px}
.callbar-call{background:var(--primary)}
.callbar-devis{background:var(--accent);color:#3a2600}

/* reveal animation */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ===== TABLET ===== */
@media (min-width:640px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .stats-grid{grid-template-columns:repeat(4,1fr)}
  .hero-cta{flex-direction:row}
  .urgence-inner{flex-direction:row;align-items:center;justify-content:space-between}
  .footer-inner{flex-direction:row;justify-content:space-between}
  .footer-inner>div{flex:1}
}

/* ===== DESKTOP ===== */
@media (min-width:900px){
  .section{padding:72px 0}
  .burger{display:none}
  .main-nav{display:block}
  .main-nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0}
  .main-nav a{padding:10px 14px;font-weight:600;border-radius:8px}
  .main-nav a:hover{background:rgba(13,59,102,.08)}
  .header-cta{display:inline-flex;align-items:center;padding:10px 20px;background:var(--primary);color:#fff;border-radius:999px;font-weight:600;min-height:44px}
  .header-cta:hover{background:var(--primary-dark)}
  .callbar{display:none}
  body{padding-bottom:0}
  .hero{padding:56px 0 64px}
  .hero-inner{flex-direction:row;align-items:center}
  .hero-copy{flex:1.1}
  .hero-media{flex:1;aspect-ratio:4/3}
  .cards{grid-template-columns:repeat(3,1fr)}
  .about-grid{flex-direction:row;align-items:stretch}
  .about-text{flex:1.2}
  .about-media{flex:1;aspect-ratio:auto}
  .contact-grid{flex-direction:row}
  .contact-info{flex:1}
  .contact-form-wrap{flex:1.1}
}