/* =========================================================
   LAMY MAÇONNERIE — Feuille de style premium
   Palette inspirée du logo : noir profond, blanc, bleu vif
   ========================================================= */

:root{
  --bleu:#1e6bff;
  --bleu-fonce:#0f3fb0;
  --bleu-clair:#eaf1ff;
  --noir:#0b0d12;
  --gris-900:#1a1d24;
  --gris-700:#3b4150;
  --gris-500:#6b7280;
  --gris-300:#d1d5db;
  --gris-100:#f4f5f7;
  --blanc:#ffffff;
  --beton:#e7e5e0;
  --succes:#16a34a;
  --shadow-sm:0 1px 2px rgba(11,13,18,.06);
  --shadow:0 10px 30px rgba(11,13,18,.08);
  --shadow-lg:0 25px 60px rgba(11,13,18,.18);
  --radius:14px;
  --radius-lg:22px;
  --maxw:1200px;
  --font-sans:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;
  --font-display:"Manrope","Inter",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  color:var(--gris-900);
  background:var(--blanc);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--bleu);text-decoration:none}
a:hover{text-decoration:underline}

h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--noir);
  line-height:1.2;
  margin:0 0 .6em;
  letter-spacing:-.01em;
}
h1{font-size:clamp(2rem,4.6vw,3.4rem);font-weight:800}
h2{font-size:clamp(1.6rem,3.2vw,2.3rem);font-weight:800}
h3{font-size:1.25rem;font-weight:700}
h4{font-size:1.05rem;font-weight:700}
p{margin:0 0 1em}

.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---------- Header ---------- */
.header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid rgba(11,13,18,.06);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-display);font-weight:800;color:var(--noir);font-size:1.15rem;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-logo-img{display:flex;align-items:center;flex-shrink:0}
.brand-logo-img img{height:56px;width:auto;border-radius:8px;object-fit:contain;display:block}

.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--gris-900);font-weight:500;padding:9px 14px;border-radius:8px;font-size:.95rem}
.nav-links a:hover{background:var(--gris-100);text-decoration:none}
.nav-cta{margin-left:8px}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 22px;border-radius:10px;
  font-weight:700;font-family:var(--font-sans);font-size:.97rem;
  border:none;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;
  text-decoration:none;
}
.btn-primary{background:var(--bleu);color:#fff;box-shadow:0 8px 20px rgba(30,107,255,.25)}
.btn-primary:hover{background:var(--bleu-fonce);text-decoration:none;transform:translateY(-1px);box-shadow:0 12px 24px rgba(30,107,255,.32)}
.btn-dark{background:var(--noir);color:#fff}
.btn-dark:hover{background:#000;text-decoration:none}
.btn-ghost{background:transparent;color:var(--noir);border:1.5px solid var(--gris-300)}
.btn-ghost:hover{background:var(--gris-100);text-decoration:none}
.btn-white{background:#fff;color:var(--noir)}
.btn-block{width:100%;justify-content:center}

.menu-toggle{display:none;background:transparent;border:none;cursor:pointer;width:42px;height:42px;align-items:center;justify-content:center;border-radius:8px}
.menu-toggle:hover{background:var(--gris-100)}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--noir);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:22px;height:2px;background:var(--noir);transition:.2s}
.menu-toggle span::before{top:-7px}
.menu-toggle span::after{top:7px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:90px 0 100px;
  background:
    radial-gradient(1200px 600px at 90% -10%,rgba(30,107,255,.12),transparent 60%),
    linear-gradient(180deg,#fff 0%, #f6f8fc 100%);
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--bleu);font-weight:700;font-size:.85rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:18px}
.hero-eyebrow::before{content:"";width:24px;height:2px;background:var(--bleu)}
.hero h1{margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--bleu);position:relative}
.hero p.lead{font-size:1.15rem;color:var(--gris-700);margin-bottom:28px;max-width:54ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;color:var(--gris-700);font-size:.93rem}
.hero-trust div{display:flex;align-items:center;gap:8px}
.hero-trust svg{flex-shrink:0;color:var(--bleu)}

.hero-card{
  background:#fff;border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow-lg);
  border:1px solid rgba(11,13,18,.05);
  position:relative;
}
.hero-card::before{
  content:"";position:absolute;inset:-2px;border-radius:24px;z-index:-1;
  background:linear-gradient(135deg,var(--bleu),#5e8bff);opacity:.18;filter:blur(20px);
}
.hero-card h3{margin-bottom:6px}
.hero-card .price{font-size:.9rem;color:var(--succes);font-weight:700;margin-bottom:18px}
.hero-card form{display:grid;gap:12px}
.hero-card label{font-size:.85rem;font-weight:600;color:var(--gris-700);display:block;margin-bottom:4px}
.hero-card input,.hero-card select,.hero-card textarea{
  width:100%;padding:12px 14px;border-radius:10px;
  border:1.5px solid var(--gris-300);font-family:inherit;font-size:.95rem;
  background:#fff;
}
.hero-card input:focus,.hero-card select:focus,.hero-card textarea:focus{outline:none;border-color:var(--bleu);box-shadow:0 0 0 4px rgba(30,107,255,.12)}

/* ---------- Sections ---------- */
section{padding:80px 0;scroll-margin-top:80px}
.section-eyebrow{display:inline-block;color:var(--bleu);font-weight:700;font-size:.85rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:12px}
.section-title{max-width:680px;margin-bottom:14px}
.section-lead{max-width:680px;color:var(--gris-700);font-size:1.08rem;margin-bottom:48px}
.section-head{margin-bottom:48px}

.bg-light{background:var(--gris-100)}
.bg-dark{background:var(--noir);color:#fff}
.bg-dark h1,.bg-dark h2,.bg-dark h3,.bg-dark h4{color:#fff}
.bg-dark .section-lead{color:#c9cdd6}
.bg-blue{background:linear-gradient(135deg,var(--bleu) 0%, var(--bleu-fonce) 100%);color:#fff}
.bg-blue h2,.bg-blue h3{color:#fff}

/* ---------- Présentation ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-visual{
  aspect-ratio:5/6;border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(135deg,#1a1d24 0%,#0b0d12 100%);
  position:relative;display:grid;place-items:center;color:#fff;
}
.about-visual::before{content:"";position:absolute;inset:0;background:
  repeating-linear-gradient(45deg,rgba(255,255,255,.03) 0 2px,transparent 2px 24px);}
.about-visual .badge-big{
  background:#fff;color:var(--noir);
  padding:28px 32px;border-radius:18px;
  text-align:center;box-shadow:var(--shadow-lg);
  border-bottom:5px solid var(--bleu);
}
.about-visual .badge-big strong{display:block;font-size:3rem;line-height:1;color:var(--bleu);font-family:var(--font-display);font-weight:900}
.about-visual .badge-big span{display:block;font-size:.9rem;text-transform:uppercase;letter-spacing:.1em;color:var(--gris-700);font-weight:700;margin-top:6px}

.kpi-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.kpi{padding:22px;background:#fff;border-radius:var(--radius);border:1px solid var(--gris-300)}
.kpi strong{font-family:var(--font-display);font-size:1.8rem;color:var(--bleu);display:block;line-height:1}
.kpi span{font-size:.88rem;color:var(--gris-700);font-weight:600}

/* ---------- Services ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{
  background:#fff;border-radius:var(--radius);padding:32px 28px;
  border:1px solid var(--gris-300);transition:transform .2s,box-shadow .2s,border-color .2s;
  display:flex;flex-direction:column;
}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--bleu);text-decoration:none}
.service-icon{
  width:54px;height:54px;border-radius:12px;
  background:var(--bleu-clair);color:var(--bleu);
  display:grid;place-items:center;margin-bottom:20px;
}
.service-card h3{color:var(--noir);margin-bottom:8px}
.service-card p{color:var(--gris-700);font-size:.97rem;flex-grow:1}
.service-card .link-arrow{color:var(--bleu);font-weight:700;font-size:.9rem;margin-top:14px;display:inline-flex;align-items:center;gap:6px}
.service-card:hover .link-arrow{text-decoration:underline}

/* ---------- Réalisations / Galerie ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gallery figure{margin:0;border-radius:var(--radius);overflow:hidden;background:#0b0d12;position:relative;aspect-ratio:4/3;cursor:pointer}
.gallery figure img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease}
.gallery figure:hover img{transform:scale(1.04)}
.gallery figcaption{
  position:absolute;left:14px;bottom:14px;right:14px;
  color:#fff;background:rgba(11,13,18,.65);backdrop-filter:blur(6px);
  padding:10px 14px;border-radius:10px;font-size:.9rem;font-weight:600;
  transition:opacity .3s;
}

/* Lightbox */
.lb-overlay{display:none;position:fixed;inset:0;z-index:999;background:rgba(0,0,0,.92);align-items:center;justify-content:center}
.lb-overlay.is-open{display:flex}
.lb-overlay img{max-width:92vw;max-height:88vh;object-fit:contain;border-radius:10px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lb-close{position:absolute;top:20px;right:24px;color:#fff;font-size:2rem;cursor:pointer;background:none;border:none;line-height:1}
.lb-prev,.lb-next{position:absolute;top:50%;transform:translateY(-50%);color:#fff;font-size:2.2rem;cursor:pointer;background:rgba(255,255,255,.1);border:none;border-radius:50%;width:52px;height:52px;display:flex;align-items:center;justify-content:center;transition:background .2s}
.lb-prev{left:16px}.lb-next{right:16px}
.lb-prev:hover,.lb-next:hover{background:rgba(255,255,255,.22)}

/* ---------- Avis ---------- */
.testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testimonial{
  background:#fff;border-radius:var(--radius);padding:28px;
  border:1px solid var(--gris-300);position:relative;
}
.testimonial .stars{color:#f5a524;margin-bottom:12px;letter-spacing:2px}
.testimonial blockquote{margin:0;font-size:1rem;color:var(--gris-900);line-height:1.6}
.testimonial cite{display:block;margin-top:16px;font-style:normal;font-weight:700;color:var(--noir);font-size:.95rem}
.testimonial cite span{display:block;color:var(--gris-500);font-weight:500;font-size:.85rem}

.trust-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.trust-strip > div{padding:24px 16px;border-right:1px solid rgba(255,255,255,.12)}
.trust-strip > div:last-child{border-right:none}
.trust-strip strong{font-family:var(--font-display);font-size:2rem;display:block;color:#fff;line-height:1}
.trust-strip span{color:#c9cdd6;font-size:.9rem;font-weight:600;margin-top:6px;display:block;text-transform:uppercase;letter-spacing:.08em}

/* ---------- Blog ---------- */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.post-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--gris-300);transition:.2s;display:flex;flex-direction:column;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);text-decoration:none}
.post-thumb{aspect-ratio:16/10;background:linear-gradient(135deg,var(--bleu),var(--bleu-fonce));display:grid;place-items:center;color:#fff;font-weight:700;padding:24px;text-align:center}
.post-thumb.alt{background:linear-gradient(135deg,#3b4150,#0b0d12)}
.post-thumb.beton{background:linear-gradient(135deg,#a3a39a,#6e6e63)}
.post-card-body{padding:24px;flex-grow:1;display:flex;flex-direction:column}
.post-card-body .tag{font-size:.75rem;font-weight:700;color:var(--bleu);text-transform:uppercase;letter-spacing:.1em;margin-bottom:10px}
.post-card-body h3{color:var(--noir);margin-bottom:8px;font-size:1.1rem;line-height:1.35}
.post-card-body p{color:var(--gris-700);font-size:.93rem;flex-grow:1}
.post-card-body .meta{color:var(--gris-500);font-size:.82rem;margin-top:14px}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{
  background:#fff;border:1px solid var(--gris-300);border-radius:12px;
  padding:0;margin-bottom:12px;overflow:hidden;
}
.faq details[open]{border-color:var(--bleu);box-shadow:var(--shadow-sm)}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 24px;
  font-weight:700;color:var(--noir);font-size:1.02rem;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-size:1.5rem;color:var(--bleu);font-weight:600;transition:transform .2s;flex-shrink:0;
}
.faq details[open] summary::after{content:"−"}
.faq-content{padding:0 24px 22px;color:var(--gris-700)}
.faq-content p{margin:0 0 .8em}
.faq-content p:last-child{margin-bottom:0}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start}
.contact-info{padding:32px;background:var(--noir);color:#fff;border-radius:var(--radius-lg)}
.contact-info h3{color:#fff;margin-bottom:8px}
.contact-info p{color:#c9cdd6;margin-bottom:24px}
.contact-item{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-top:1px solid rgba(255,255,255,.1)}
.contact-item:first-of-type{border-top:none}
.contact-item .ic{width:38px;height:38px;border-radius:10px;background:rgba(30,107,255,.18);color:#7aa1ff;display:grid;place-items:center;flex-shrink:0}
.contact-item strong{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;display:block;margin-bottom:2px}
.contact-item a,.contact-item span{color:#fff;font-size:1.05rem;text-decoration:none}
.contact-item a:hover{color:#7aa1ff;text-decoration:none}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-full{grid-column:1/-1}
.contact-form{background:#fff;padding:32px;border-radius:var(--radius-lg);border:1px solid var(--gris-300);box-shadow:var(--shadow-sm)}
.contact-form label{font-size:.85rem;font-weight:600;color:var(--gris-700);display:block;margin-bottom:4px}
.contact-form input,.contact-form select,.contact-form textarea{
  width:100%;padding:12px 14px;border-radius:10px;
  border:1.5px solid var(--gris-300);font-family:inherit;font-size:.95rem;background:#fff;
}
.contact-form textarea{min-height:130px;resize:vertical}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none;border-color:var(--bleu);box-shadow:0 0 0 4px rgba(30,107,255,.12)}
.form-hint{font-size:.82rem;color:var(--gris-500);margin-top:6px}

/* ---------- CTA Final ---------- */
.cta-final{padding:70px 0;text-align:center}
.cta-final h2{color:#fff;margin-bottom:10px}
.cta-final p{color:#dbe6ff;font-size:1.1rem;margin-bottom:28px;max-width:600px;margin-left:auto;margin-right:auto}

/* ---------- Footer ---------- */
.footer{background:var(--noir);color:#c9cdd6;padding:60px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer h4{color:#fff;font-size:.9rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:18px}
.footer a{color:#c9cdd6;text-decoration:none;display:block;padding:5px 0;font-size:.95rem}
.footer a:hover{color:#fff;text-decoration:none}
.footer .footer-about p{font-size:.95rem;line-height:1.7}
.footer .brand{color:#fff;margin-bottom:14px}
.footer .brand-name strong{color:#fff}
.footer-bottom{padding-top:24px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.85rem;color:#9aa1ad}
.footer-bottom a{display:inline;color:#9aa1ad}
.footer-bottom a:hover{color:#fff}

/* ---------- Article ---------- */
.article-hero{padding:60px 0 30px;background:var(--gris-100)}
.article-hero .tag{display:inline-block;background:var(--bleu);color:#fff;padding:6px 14px;border-radius:999px;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;margin-bottom:18px}
.article-hero h1{max-width:780px}
.article-hero .meta{color:var(--gris-500);font-size:.92rem;margin-top:14px}
.article-body{padding:50px 0 70px;max-width:760px;margin:0 auto}
.article-body h2{margin-top:1.8em;margin-bottom:.5em}
.article-body h3{margin-top:1.4em}
.article-body p{font-size:1.05rem;color:#2a2f3a;line-height:1.8}
.article-body ul,.article-body ol{padding-left:1.4em;margin-bottom:1.4em}
.article-body ul li,.article-body ol li{margin-bottom:.5em;font-size:1.03rem}
.article-body blockquote{
  border-left:4px solid var(--bleu);background:var(--bleu-clair);
  padding:18px 24px;border-radius:0 12px 12px 0;margin:1.6em 0;font-style:italic;color:var(--noir);
}
.article-body .callout{
  background:var(--gris-100);border:1px solid var(--gris-300);
  padding:24px;border-radius:12px;margin:1.8em 0;
}
.article-body .callout strong{color:var(--bleu)}

.breadcrumb{font-size:.85rem;color:var(--gris-500);margin-bottom:18px}
.breadcrumb a{color:var(--gris-700)}
.breadcrumb span{margin:0 8px;color:var(--gris-300)}

/* ---------- Page banner (sous-pages) ---------- */
.page-banner{padding:70px 0 40px;background:linear-gradient(180deg,#fff,#f6f8fc)}
.page-banner h1{margin-bottom:10px}
.page-banner p{color:var(--gris-700);font-size:1.1rem;max-width:680px}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .hero{padding:60px 0 70px}
  .hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr;gap:40px}
  .services-grid,.testimonials,.blog-grid,.gallery{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .trust-strip{grid-template-columns:1fr 1fr;gap:0}
  .trust-strip > div{border-bottom:1px solid rgba(255,255,255,.12);border-right:1px solid rgba(255,255,255,.12)}
  .trust-strip > div:nth-child(2n){border-right:none}
  .trust-strip > div:nth-last-child(-n+2){border-bottom:none}
}
@media (max-width:720px){
  section{padding:60px 0}
  body{font-size:16px}
  .nav{position:relative}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:0;right:0;background:#fff;z-index:200;
    flex-direction:column;align-items:stretch;padding:18px 18px 22px;border-radius:0 0 16px 16px;
    box-shadow:0 18px 42px rgba(11,13,18,.14);border:1px solid var(--gris-300);border-top:none;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:transform .25s ease, opacity .25s ease;overflow-y:auto;gap:0;
    max-height:calc(100vh - 92px);-webkit-overflow-scrolling:touch;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{padding:14px 16px;font-size:1.05rem;border-bottom:1px solid var(--gris-300)}
  .nav-links a:last-child{border-bottom:none}
  .nav-cta{margin-left:0;margin-top:8px}
  .menu-toggle{display:flex;z-index:210}
  .hero-grid{gap:28px}
  .hero h1{font-size:clamp(1.8rem,6vw,2.4rem)}
  .trust-strip{grid-template-columns:1fr 1fr}
  .trust-strip > div:nth-last-child(-n+2){border-bottom:none}
  .gallery{grid-template-columns:1fr}
  .blog-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .page-banner{padding:50px 0 30px}
}
@media (max-width:480px){
  .gallery{grid-template-columns:1fr}
  .btn{padding:12px 18px;font-size:.93rem}
}