/* ==========================================================================
   Couvreur Saint-Étienne — Feuille de style globale
   Palette : Bleu profond #0B3C5D / Orange #F97316
   + Gris ardoise #374151 / Blanc cassé #F9FAFB / Noir doux #111827
   ========================================================================== */
:root{
  --primary:#0B3C5D;
  --primary-dark:#072A42;
  --primary-light:#155078;
  --accent:#F97316;
  --accent-dark:#C2410C;
  --accent-light:#FB923C;
  --text:#111827;
  --muted:#374151;
  --muted-soft:#6B7280;
  --bg:#FFFFFF;
  --bg-alt:#F9FAFB;
  --border:#E5E7EB;
  --success:#15803D;
  --shadow:0 4px 16px rgba(11,60,93,.07);
  --shadow-lg:0 14px 44px rgba(11,60,93,.14);
  --shadow-cta:0 8px 22px rgba(249,115,22,.32);
  --radius:12px;
  --radius-sm:8px;
  --maxw:1200px;
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--text);
  background:var(--bg-alt);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}

h1,h2,h3,h4{font-family:var(--font);color:var(--primary);line-height:1.25;font-weight:700}
h1{font-size:clamp(2rem,4vw,3rem);margin-bottom:.6em}
h2{font-size:clamp(1.6rem,3vw,2.25rem);margin-bottom:.6em}
h3{font-size:1.3rem;margin-bottom:.5em}
p{margin-bottom:1em;color:var(--muted)}
section{padding:80px 0}
section.tight{padding:50px 0}

/* ===== Top bar ===== */
.topbar{
  background:var(--primary-dark);
  color:#fff;
  font-size:.88rem;
  padding:8px 0;
}
.topbar .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.topbar a{color:#fff}
.topbar .badges span{margin-right:14px;opacity:.92}
.topbar .badges svg{vertical-align:-3px;margin-right:5px}

/* ===== Header ===== */
.site-header{
  background:#fff;
  border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:100;
  box-shadow:0 2px 12px rgba(15,45,82,.06);
}
.site-header .container{
  display:flex;align-items:center;gap:32px;
  padding-top:14px;padding-bottom:14px;
}

/* Logo */
.logo{display:flex;align-items:center;gap:14px;flex-shrink:0;color:var(--primary);text-decoration:none}
.logo:hover{color:var(--primary)}
.logo-mark{
  width:52px;height:52px;border-radius:14px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 60%,var(--primary-dark) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
  box-shadow:0 6px 18px rgba(11,60,93,.28),inset 0 1px 0 rgba(255,255,255,.18);
  position:relative;flex-shrink:0;
}
.logo-mark::after{
  content:"";position:absolute;inset:2px;border-radius:12px;
  background:linear-gradient(135deg,transparent 50%,rgba(249,115,22,.14) 100%);
  pointer-events:none;
}
.logo-text{display:flex;flex-direction:column;line-height:1.1;white-space:nowrap}
.logo-text .lt-name{font-size:1.1rem;font-weight:800;color:var(--primary);letter-spacing:-.3px}
.logo-text .lt-tag{
  font-size:.68rem;font-weight:700;color:var(--accent);
  letter-spacing:1.6px;text-transform:uppercase;margin-top:3px;
  display:flex;align-items:center;gap:6px;
}
.logo-text .lt-tag::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:1px}

/* Main navigation */
nav.main-nav{flex:1}
nav.main-nav > ul{display:flex;list-style:none;gap:2px;align-items:center;justify-content:center;margin:0;padding:0}
nav.main-nav > ul > li{position:relative}
nav.main-nav > ul > li > a{
  color:var(--text);font-weight:500;padding:10px 16px;border-radius:8px;
  font-size:.95rem;display:flex;align-items:center;gap:6px;
  white-space:nowrap;transition:all .2s;
}
nav.main-nav > ul > li > a:hover,
nav.main-nav > ul > li:hover > a{background:var(--bg-alt);color:var(--primary)}
nav.main-nav > ul > li > a.active{color:var(--accent);font-weight:600}
nav.main-nav > ul > li.has-mega > a::after{
  content:"";width:6px;height:6px;border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;transform:rotate(45deg);
  margin-top:-3px;margin-left:2px;transition:transform .2s;
}
nav.main-nav > ul > li.has-mega:hover > a::after{transform:rotate(225deg);margin-top:1px}

/* Mega menu */
.mega{
  position:absolute;top:calc(100% + 8px);left:50%;
  transform:translateX(-50%) translateY(8px);
  background:#fff;border-radius:14px;padding:24px;
  box-shadow:0 16px 50px rgba(15,45,82,.18),0 0 0 1px rgba(15,45,82,.04);
  opacity:0;visibility:hidden;transition:all .25s ease;
  z-index:101;
}
.mega::before{
  content:"";position:absolute;top:-8px;left:0;right:0;height:8px;
}
nav.main-nav > ul > li:hover .mega,
nav.main-nav > ul > li:focus-within .mega{
  opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);
}

.mega-services{min-width:680px}
.mega-services-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.mega-item{
  display:flex;gap:14px;padding:14px;border-radius:10px;
  text-decoration:none;transition:all .2s;align-items:flex-start;
}
.mega-item:hover{background:var(--bg-alt);transform:translateX(2px)}
.mega-item .mega-icon{
  width:42px;height:42px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
}
.mega-item:hover .mega-icon{
  background:linear-gradient(135deg,var(--accent) 0%,#FF9800 100%);
}
.mega-item .mega-text strong{
  display:block;color:var(--primary);font-weight:700;font-size:.95rem;margin-bottom:3px;
}
.mega-item .mega-text span{
  display:block;color:var(--muted);font-size:.83rem;line-height:1.45;font-weight:400;
}
.mega-footer{
  margin-top:18px;padding-top:18px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;align-items:center;gap:14px;
}
.mega-footer span{color:var(--muted);font-size:.88rem}
.mega-footer a{font-weight:600;font-size:.9rem;color:var(--accent)}

.mega-zone{min-width:760px}
.mega-zone-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}
.mega-zone-col h4{
  color:var(--accent);font-size:.72rem;text-transform:uppercase;
  letter-spacing:1.6px;margin-bottom:12px;padding-bottom:8px;
  border-bottom:1px solid var(--border);font-weight:700;
}
.mega-zone-col ul{list-style:none;padding:0;margin:0}
.mega-zone-col li{margin-bottom:2px}
.mega-zone-col a{
  font-size:.91rem;color:var(--text);padding:6px 8px;
  display:flex;align-items:center;gap:8px;border-radius:6px;text-decoration:none;
  transition:all .15s;
}
.mega-zone-col a::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent);opacity:0;transition:.15s}
.mega-zone-col a:hover{background:var(--bg-alt);color:var(--primary);padding-left:12px}
.mega-zone-col a:hover::before{opacity:1}

/* Header CTA */
.header-cta{display:flex;gap:10px;align-items:center;flex-shrink:0}
.phone-pill{
  display:flex;align-items:center;gap:10px;text-decoration:none;
  padding:8px 14px;border-radius:10px;border:1.5px solid var(--border);
  transition:all .2s;background:#fff;
}
.phone-pill:hover{border-color:var(--accent);background:#FFF8F0;transform:translateY(-1px)}
.phone-pill .phone-icon{
  width:32px;height:32px;border-radius:8px;
  background:linear-gradient(135deg,var(--success) 0%,#22A557 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;
  box-shadow:0 3px 8px rgba(21,128,61,.3);
}
.phone-pill .phone-text{display:flex;flex-direction:column;line-height:1.1}
.phone-pill .phone-text small{font-size:.65rem;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.6px}
.phone-pill .phone-text strong{font-size:.95rem;color:var(--primary);font-weight:700;white-space:nowrap}

.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;margin-left:auto}
.menu-toggle span{display:block;width:26px;height:3px;background:var(--primary);margin:5px 0;border-radius:2px;transition:.3s}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:10px;font-weight:600;
  font-size:1rem;cursor:pointer;border:none;transition:all .25s ease;
  text-decoration:none;line-height:1;letter-spacing:.1px;
}
.btn-primary{
  background:var(--accent);color:#fff;
  box-shadow:var(--shadow-cta);
  position:relative;overflow:hidden;
}
.btn-primary::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(255,255,255,.18) 0%,transparent 60%);
  pointer-events:none;
}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(249,115,22,.42)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-white{background:#fff;color:var(--primary)}
.btn-white:hover{background:var(--bg-alt);color:var(--primary)}
.btn-lg{padding:17px 34px;font-size:1.05rem}
.btn-phone{background:var(--success);color:#fff;box-shadow:0 6px 18px rgba(21,128,61,.3)}
.btn-phone:hover{background:#0F5132;color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(21,128,61,.4)}

/* ===== Hero ===== */
.hero{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;position:relative;overflow:hidden;padding:90px 0 100px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='50' viewBox='0 0 100 50'%3E%3Cpath d='M0 50 L25 0 L50 50 L75 0 L100 50' fill='none' stroke='%23ffffff' stroke-opacity='.05' stroke-width='1.5'/%3E%3C/svg%3E");
  opacity:.6;
}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.hero h1{color:#fff;font-size:clamp(2.2rem,4.4vw,3.4rem)}
.hero h1 span{color:var(--accent-light)}
.hero p{color:#cfd8e3;font-size:1.15rem;margin-bottom:2em;max-width:560px}
.hero-trust{display:flex;gap:24px;flex-wrap:wrap;margin-top:30px}
.hero-trust div{display:flex;align-items:center;gap:8px;font-size:.95rem;color:#fff}
.hero-trust strong{display:block;font-size:1.4rem;color:var(--accent-light)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.hero-card{
  background:#fff;color:var(--text);padding:36px;border-radius:14px;
  box-shadow:var(--shadow-lg);
}
.hero-card h3{color:var(--primary);margin-bottom:8px}
.hero-card .form-row{margin-bottom:14px}
.hero-card label{display:block;font-size:.85rem;font-weight:600;color:var(--text);margin-bottom:5px}
.hero-card input,.hero-card select,.hero-card textarea{
  width:100%;padding:11px 14px;border:1.5px solid var(--border);
  border-radius:8px;font-size:.95rem;font-family:inherit;
  transition:border .2s;
}
.hero-card input:focus,.hero-card select:focus,.hero-card textarea:focus{
  outline:none;border-color:var(--accent);
}
.hero-card .btn{width:100%;justify-content:center;margin-top:6px}

/* ===== Sections ===== */
.section-head{text-align:center;max-width:780px;margin:0 auto 50px}
.section-head .eyebrow{
  color:var(--accent);font-weight:700;text-transform:uppercase;
  letter-spacing:1.5px;font-size:.85rem;margin-bottom:8px;display:block;
}
.section-head p{font-size:1.08rem}

/* ===== Cards (services) ===== */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:26px}
.card{
  background:#fff;padding:32px 26px;border-radius:var(--radius);
  border:1px solid var(--border);transition:all .3s;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--accent)}
.card-icon{
  width:60px;height:60px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
  margin-bottom:18px;
}
.card h3{margin-bottom:10px}
.card p{flex:1;font-size:.95rem}
.card .card-link{
  margin-top:16px;color:var(--accent);font-weight:600;font-size:.95rem;
  display:inline-flex;align-items:center;gap:6px;
}
.card .card-link::after{content:"→";transition:transform .2s}
.card:hover .card-link::after{transform:translateX(4px)}

/* ===== Why us ===== */
.why-us{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px}
.why-item{text-align:center}
.why-item .why-num{
  font-size:2.5rem;font-weight:800;color:var(--accent);
  display:block;line-height:1;margin-bottom:6px;
}
.why-item h3{font-size:1.1rem;color:var(--primary);margin-bottom:6px}
.why-item p{font-size:.93rem}

/* ===== Process ===== */
.process-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;position:relative}
.process-step{text-align:center;position:relative;padding:0 10px}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:64px;height:64px;border-radius:50%;
  background:var(--primary);color:#fff;font-size:1.4rem;font-weight:700;
  margin-bottom:18px;border:4px solid var(--accent-light);
}

/* ===== Zone ===== */
.zone{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff}
.zone h2{color:#fff}
.zone .section-head p{color:#cfd8e3}
.zone-cities{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:12px;margin-top:30px;
}
.zone-cities a{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  padding:14px 18px;border-radius:8px;color:#fff;font-weight:500;
  display:flex;align-items:center;gap:10px;transition:all .2s;
}
.zone-cities a:hover{background:var(--accent);border-color:var(--accent);transform:translateX(3px)}
.zone-cities a::before{content:"📍";font-size:1rem}

/* ===== Testimonials ===== */
.testimonials{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.testimonial-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:26px}
.testimonial{
  background:#fff;padding:28px;border-radius:var(--radius);
  border-left:4px solid var(--accent);box-shadow:var(--shadow);
}
.testimonial .stars{color:var(--accent);margin-bottom:10px;letter-spacing:2px}
.testimonial p{font-style:italic;color:var(--text);margin-bottom:14px}
.testimonial-author{font-weight:600;color:var(--primary);font-size:.95rem}
.testimonial-author small{display:block;font-weight:400;color:var(--muted);font-size:.85rem}

/* ===== FAQ ===== */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  margin-bottom:14px;overflow:hidden;
}
.faq-item summary{
  padding:20px 24px;cursor:pointer;font-weight:600;color:var(--primary);
  list-style:none;display:flex;justify-content:space-between;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:1.5rem;color:var(--accent);transition:transform .2s;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-answer{padding:0 24px 22px;color:var(--muted)}

/* ===== CTA band ===== */
.cta-band{
  background:var(--accent);color:#fff;padding:60px 0;
}
.cta-band .container{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px;
}
.cta-band h2{color:#fff;margin-bottom:6px}
.cta-band p{color:#fff5e8;margin:0;font-size:1.05rem}
.cta-band .btn-white{font-weight:700}

/* ===== Footer ===== */
footer.site-footer{
  background:var(--primary-dark);color:#cfd8e3;padding:60px 0 30px;
}
footer h4{color:#fff;margin-bottom:18px;font-size:1rem;text-transform:uppercase;letter-spacing:1px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:40px}
footer ul{list-style:none}
footer ul li{margin-bottom:8px}
footer a{color:#cfd8e3;font-size:.92rem}
footer a:hover{color:var(--accent-light)}
footer .footer-logo{font-size:1.3rem;font-weight:800;color:#fff;margin-bottom:14px}
footer .footer-about p{color:#9aa6b3;font-size:.92rem}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;
  font-size:.85rem;color:#7c8794;
}

/* ===== Page header (interior pages) ===== */
.page-header{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;padding:70px 0 60px;
  position:relative;overflow:hidden;
}
.page-header::before{
  content:"";position:absolute;inset:0;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='50' viewBox='0 0 100 50'%3E%3Cpath d='M0 50 L25 0 L50 50 L75 0 L100 50' fill='none' stroke='%23ffffff' stroke-opacity='.06' stroke-width='1.5'/%3E%3C/svg%3E");
}
.page-header .container{position:relative;z-index:2}
.page-header h1{color:#fff;margin-bottom:10px}
.page-header p{color:#cfd8e3;font-size:1.1rem;max-width:680px}
.breadcrumb{font-size:.9rem;color:#9eb1c9;margin-bottom:14px}
.breadcrumb a{color:var(--accent-light)}

/* ===== Forms ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
.form-card{
  background:#fff;padding:38px;border-radius:var(--radius);
  box-shadow:var(--shadow);border:1px solid var(--border);
}
.form-row{margin-bottom:18px}
.form-row.row-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:block;font-size:.9rem;font-weight:600;color:var(--text);margin-bottom:6px}
input,select,textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--border);
  border-radius:8px;font-size:.95rem;font-family:inherit;background:#fff;
  transition:border .2s;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}
textarea{min-height:120px;resize:vertical}
.contact-info-block{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 0;border-bottom:1px solid var(--border);
}
.contact-info-block:last-child{border-bottom:none}
.contact-info-block .icon{
  width:46px;height:46px;border-radius:10px;background:var(--bg-alt);
  display:flex;align-items:center;justify-content:center;color:var(--accent);flex-shrink:0;
}
.contact-info-block strong{display:block;color:var(--primary);font-size:1rem;margin-bottom:3px}
.contact-info-block span,.contact-info-block a{color:var(--muted);font-size:.95rem}

/* ===== Article (city/service detail pages) ===== */
.article-grid{display:grid;grid-template-columns:1fr 320px;gap:50px;align-items:start}
.article-content h2{margin-top:1.6em}
.article-content h3{margin-top:1.4em;color:var(--primary-light)}
.article-content ul{margin-bottom:1.2em;padding-left:20px}
.article-content ul li{margin-bottom:8px;color:var(--muted)}
.article-content p{font-size:1rem;line-height:1.75}
.sticky-side{position:sticky;top:96px}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;margin-bottom:20px;box-shadow:var(--shadow);
}
.side-card h3{color:var(--primary);font-size:1.15rem;margin-bottom:14px}
.side-card .btn{width:100%;justify-content:center;margin-bottom:8px}
.side-card ul{list-style:none;padding:0}
.side-card ul li{padding:8px 0;border-bottom:1px solid var(--border);font-size:.93rem}
.side-card ul li:last-child{border-bottom:none}

/* ===== Floating call button (mobile) ===== */
.floating-call{
  position:fixed;right:20px;bottom:20px;z-index:99;
  background:var(--success);color:#fff;width:60px;height:60px;
  border-radius:50%;display:none;align-items:center;justify-content:center;
  box-shadow:0 8px 24px rgba(46,125,50,.4);animation:pulse 2s infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 8px 24px rgba(21,128,61,.4)}
  50%{box-shadow:0 8px 24px rgba(21,128,61,.7),0 0 0 12px rgba(21,128,61,0)}
}

/* ===== Utility ===== */
.text-center{text-align:center}
.mt-2{margin-top:2rem}.mt-3{margin-top:3rem}
.row-2-50{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.tag{display:inline-block;background:var(--bg-alt);color:var(--primary);padding:4px 12px;border-radius:20px;font-size:.82rem;font-weight:600;margin-right:6px;margin-bottom:6px}

/* ===== RESPONSIVE — couvre tous les écrans 320px → 4K ===== */

/* Grand écran : 1400px+ : on élargit le container max */
@media (min-width:1400px){
  :root{--maxw:1280px}
  h1{font-size:clamp(2.4rem,3.5vw,3.4rem)}
  .hero h1{font-size:clamp(2.6rem,4vw,3.8rem)}
}

/* Tablette/laptop ~1100px : compactage du menu */
@media (max-width:1100px){
  nav.main-nav > ul > li > a{padding:8px 10px;font-size:.9rem}
  .phone-pill .phone-text small{display:none}
  .logo-text .lt-tag{display:none}
  nav.main-nav > ul{gap:1px}
  .header-cta .btn-outline{display:none}
}

/* Tablette : ~980px et moins → menu burger */
@media (max-width:980px){
  .hero .container,.row-2-50,.contact-grid,.article-grid{grid-template-columns:1fr;gap:30px}
  .article-grid{gap:40px}
  .sticky-side{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
  .site-header .container{gap:12px;padding:10px 16px}
  nav.main-nav{
    position:absolute;top:100%;left:0;right:0;background:#fff;
    border-bottom:1px solid var(--border);max-height:calc(100vh - 80px);overflow-y:auto;
    padding:14px 20px;display:none;box-shadow:var(--shadow);
  }
  nav.main-nav.open{display:block}
  nav.main-nav > ul{flex-direction:column;gap:0;align-items:stretch}
  nav.main-nav > ul > li{position:static}
  nav.main-nav > ul > li > a{padding:14px 14px;border-radius:8px;font-size:1rem;justify-content:space-between}
  nav.main-nav > ul > li.has-mega > a::after{margin-top:0}
  .mega{
    position:static;transform:none;opacity:1;visibility:visible;
    box-shadow:none;background:var(--bg-alt);padding:14px;margin:0 0 8px;
    min-width:0;border-radius:10px;display:none;
  }
  nav.main-nav > ul > li.mega-open .mega{display:block}
  nav.main-nav > ul > li.mega-open > a::after{transform:rotate(225deg);margin-top:1px}
  .mega-services-grid,.mega-zone-grid{grid-template-columns:1fr;gap:4px}
  .mega-services,.mega-zone{min-width:0}
  .mega-footer{flex-direction:column;align-items:stretch;text-align:center;gap:8px}
  .menu-toggle{display:block}
  .header-cta .phone-pill .phone-text{display:none}
  .header-cta .phone-pill{padding:8px}
  .floating-call{display:flex}
  section{padding:50px 0}
  .cta-band .container{flex-direction:column;text-align:center}
  .cards{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
  .testimonial-grid{grid-template-columns:1fr;gap:18px}
  .why-grid,.process-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:24px}
}

/* Téléphones standards ≤640px */
@media (max-width:640px){
  body{font-size:15.5px}
  .container{padding:0 14px}
  h1{font-size:clamp(1.6rem,6vw,2.1rem);line-height:1.2}
  h2{font-size:clamp(1.4rem,5vw,1.8rem);line-height:1.25}
  h3{font-size:1.1rem}
  section{padding:40px 0}
  .hero{padding:40px 0 50px}
  .hero p{font-size:1rem}
  .hero-cta{flex-direction:column;gap:10px}
  .hero-cta .btn{width:100%;justify-content:center}
  .hero-trust{gap:14px;justify-content:space-between}
  .hero-trust div{font-size:.85rem}
  .hero-trust strong{font-size:1.1rem}
  .hero-card{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .form-row.row-2{grid-template-columns:1fr}
  .topbar{font-size:.78rem;padding:6px 0}
  .topbar .badges span{margin-right:8px}
  .topbar .container{flex-direction:column;gap:4px;text-align:center}
  .page-header{padding:50px 0 40px}
  .page-header p{font-size:1rem}
  .breadcrumb{font-size:.82rem}
  .cards{grid-template-columns:1fr;gap:14px}
  .card{padding:24px 20px}
  .why-grid{grid-template-columns:1fr 1fr;gap:18px}
  .why-item .why-num{font-size:1.9rem}
  .process-grid{grid-template-columns:1fr;gap:24px}
  .step-num{width:54px;height:54px;font-size:1.2rem}
  .zone-cities{grid-template-columns:1fr 1fr;gap:8px}
  .zone-cities a{padding:10px 12px;font-size:.88rem}
  .testimonial{padding:22px 18px}
  .faq-item summary{padding:16px 18px;font-size:.95rem}
  .faq-item .faq-answer{padding:0 18px 18px;font-size:.92rem}
  .cta-band{padding:44px 0}
  .cta-band h2{font-size:1.3rem}
  .cta-band p{font-size:.95rem}
  .cta-band .btn{width:100%;justify-content:center}
  .form-card{padding:24px 20px}
  .contact-info-block{padding:14px 0}
  .contact-info-block .icon{width:40px;height:40px}
  .side-card{padding:20px 18px}
  .btn{padding:12px 20px;font-size:.95rem}
  .btn-lg{padding:14px 22px;font-size:1rem}
  .floating-call{width:54px;height:54px;right:14px;bottom:14px}
  footer.site-footer{padding:40px 0 24px}
  .footer-bottom{flex-direction:column;text-align:center;gap:6px}
  .logo-text .lt-name{font-size:1rem}
  .logo-mark{width:42px;height:42px}
  .article-content h2{font-size:1.35rem}
  .article-content h3{font-size:1.1rem}
  .article-content p,.article-content ul li{font-size:.95rem}
}

/* Petits téléphones ≤400px */
@media (max-width:400px){
  body{font-size:15px}
  .container{padding:0 12px}
  h1{font-size:1.5rem}
  h2{font-size:1.3rem}
  .hero h1{font-size:1.7rem}
  .hero{padding:30px 0 40px}
  .hero-card{padding:20px 16px}
  .hero-trust{gap:10px}
  .hero-trust div{font-size:.78rem;flex:1 1 calc(50% - 5px)}
  .hero-trust strong{font-size:1rem}
  .topbar{display:none}
  .site-header .container{padding:8px 12px;gap:6px}
  .logo{gap:8px}
  .logo-mark{width:38px;height:38px}
  .logo-text .lt-name{font-size:.92rem}
  .header-cta{gap:6px}
  .header-cta .phone-pill{padding:6px}
  .header-cta .phone-pill .phone-icon{width:28px;height:28px}
  .header-cta .btn-primary{padding:9px 14px;font-size:.85rem}
  .menu-toggle{padding:6px}
  .menu-toggle span{width:22px}
  .why-grid{grid-template-columns:1fr;gap:20px}
  .zone-cities{grid-template-columns:1fr;gap:6px}
  .card-icon{width:50px;height:50px}
  .card{padding:20px 16px}
  .section-head{margin-bottom:30px}
  .section-head .eyebrow{font-size:.75rem;letter-spacing:1px}
  section{padding:32px 0}
  .page-header{padding:40px 0 32px}
  .cta-band{padding:36px 0}
  .floating-call{width:50px;height:50px;right:12px;bottom:12px}
  input,select,textarea{padding:11px 12px;font-size:.92rem}
  label{font-size:.85rem}
}

/* Petite largeur extrême ≤340px : iPhone SE 1ère génération etc. */
@media (max-width:340px){
  body{font-size:14.5px}
  h1{font-size:1.35rem}
  .hero h1{font-size:1.5rem}
  .logo-text .lt-name{font-size:.85rem}
  .header-cta .btn-primary{padding:8px 11px;font-size:.78rem}
  .floating-call{width:46px;height:46px}
}

/* Mode paysage sur petit écran : compacter le hero */
@media (max-width:900px) and (orientation:landscape) and (max-height:500px){
  .hero{padding:30px 0 40px}
  .hero h1{font-size:1.6rem}
  .page-header{padding:30px 0 24px}
}

/* Préférence utilisateur : réduire les animations */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .floating-call{animation:none}
}