/* Google Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;800&display=swap');

/* Reset léger */
*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:Inter, Arial, sans-serif;
  color:#0f172a;
  background:
    radial-gradient(1200px 600px at 20% 0%, rgba(37, 99, 235, .10), transparent 60%),
    radial-gradient(900px 500px at 90% 10%, rgba(245, 158, 11, .10), transparent 55%),
    linear-gradient(#f8fafc, #f8fafc);
}

/* Variables */
:root{
  --brand:#1d4ed8;
  --brand-2:#0b3aa6;
  --accent:#f59e0b;
  --ink:#0f172a;
  --muted:#475569;
  --card:#ffffff;
  --line:rgba(15, 23, 42, .10);
  --shadow:0 12px 30px rgba(2, 6, 23, .10);
  --shadow-soft:0 10px 22px rgba(2, 6, 23, .08);
  --radius:18px;
  --radius-sm:12px;
}

/* Containers */
section{ padding:28px 18px; }
.container{ max-width:1100px; margin:0 auto; }
h2{
  text-align:center;
  margin:0 0 14px;
  font-size:28px;
  letter-spacing:-.02em;
}
p{ line-height:1.7; color:var(--muted); }

/* Header (modern + sticky) */
header{
  position:sticky;
  top:0;
  z-index:1000;
  backdrop-filter:saturate(180%) blur(10px);
  background:rgba(248, 250, 252, .82);
  border-bottom:1px solid var(--line);
}

.header-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:14px 16px;
  max-width:1100px;
  margin:0 auto;
}

.header-left{
  display:flex;
  flex-direction:column;
  gap:4px;
  font-size:13px;
  color:var(--muted);
}
.header-left b{ color:var(--ink); }

.header-center{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:12px;
  text-align:center;
}
.header-center img{ height:46px; }
.header-center .brand-title{
  font-weight:800;
  font-size:18px;
  letter-spacing:-.02em;
  color:var(--ink);
}
.header-center .brand-sub{
  margin-top:2px;
  display:flex;
  gap:8px;
  justify-content:center;
  align-items:center;
  font-size:12px;
  color:var(--muted);
}
.header-right{
  display:flex;
  align-items:center;
  gap:10px;
}
.header-right .mail{
  font-size:13px;
  color:var(--muted);
  white-space:nowrap;
}

.header-cta{
  display:inline-flex;
  align-items:center;
  gap:10px;
  background:linear-gradient(135deg, var(--brand), var(--brand-2));
  color:#fff;
  padding:10px 14px;
  border-radius:999px;
  text-decoration:none;
  font-weight:700;
  box-shadow:var(--shadow-soft);
  white-space:nowrap;
  transition:.2s transform, .2s opacity;
}
.header-cta:hover{ transform:translateY(-1px); opacity:.95; }

/* Tabs / Navigation */
.tabs{
  display:flex;
  gap:10px;
  padding:0 16px 14px;
  max-width:1100px;
  margin:0 auto;
  flex-wrap:wrap;
}
.tab{
  padding:10px 14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  font-weight:700;
  color:var(--ink);
  cursor:pointer;
  transition:.2s transform, .2s background, .2s border;
}
.tab:hover{
  transform:translateY(-1px);
  background:rgba(29, 78, 216, .06);
  border-color:rgba(29, 78, 216, .25);
}

/* HERO */
.hero{
  padding:26px 18px 12px;
}
.hero .container{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:22px;
  align-items:stretch;
}
.hero-box{
  background:rgba(255,255,255,.86);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  border-radius:var(--radius);
  padding:28px;
}
.hero-box h2{
  text-align:left;
  font-size:34px;
  margin:0 0 10px;
}
.hero-box .lead{
  margin:0 0 14px;
  color:var(--muted);
}
.hero-badges{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin:10px 0 18px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  font-weight:700;
  color:var(--ink);
  font-size:13px;
}

.hero-box ul{
  list-style:none;
  padding:0;
  margin:0 0 18px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.hero-box li{
  background:#fff;
  border:1px solid var(--line);
  padding:12px 12px 12px 40px;
  border-radius:14px;
  position:relative;
  font-weight:600;
  color:var(--ink);
}
.hero-box li::before{
  content:'✔';
  position:absolute;
  left:14px;
  top:50%;
  transform:translateY(-50%);
  color:var(--brand);
  font-weight:800;
}

.hero-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 16px;
  border-radius:14px;
  text-decoration:none;
  font-weight:800;
  border:1px solid transparent;
  transition:.2s transform, .2s opacity, .2s background;
}
.btn:hover{ transform:translateY(-1px); opacity:.97; }

.btn-primary{
  background:linear-gradient(135deg, var(--brand), var(--brand-2));
  color:#fff;
  box-shadow:var(--shadow-soft);
}
.btn-secondary{
  background:#fff;
  color:var(--ink);
  border-color:var(--line);
}

.hero-side{
  display:grid;
  gap:12px;
}
.side-card{
  background:rgba(255,255,255,.88);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-soft);
  padding:16px;
}
.side-card h3{
  margin:0 0 6px;
  font-size:16px;
  letter-spacing:-.01em;
}
.side-card p{
  margin:0;
  font-size:14px;
  color:var(--muted);
}
.side-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
}

/* Cards sous le hero */
.equipements-cards{
  margin-top:18px;
}
.cards{ display:grid; gap:14px; }
.cards.services-4{ grid-template-columns:repeat(4, 1fr); }

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:16px;
  text-align:left;
  box-shadow:0 10px 18px rgba(2, 6, 23, .06);
  transition:.2s transform, .2s border;
}
.card:hover{
  transform:translateY(-2px);
  border-color:rgba(29, 78, 216, .25);
}
.card h3{
  margin:0 0 6px;
  font-size:16px;
  color:var(--ink);
}
.card p{
  margin:0;
  font-size:14px;
  color:var(--muted);
}
.card img{
  width:100%;
  height:160px;
  object-fit:cover;
  border-radius:12px;
  margin-bottom:10px;
  display:block;
  background:#f1f5f9;
  border:1px solid rgba(15,23,42,.06);
}

/* Dépannage : grille 3/3 */
.depannage-grid{
  grid-template-columns:repeat(3, 1fr);
}

/* Floating call */
.floating-call{
  position:fixed;
  bottom:18px;
  right:18px;
  background:linear-gradient(135deg, var(--accent), #f97316);
  color:#111827;
  padding:12px 16px;
  border-radius:999px;
  font-weight:900;
  text-decoration:none;
  box-shadow:0 18px 30px rgba(2, 6, 23, .22);
  z-index:999;
  border:1px solid rgba(2,6,23,.12);
}

/* Sections “box” */
.panel{
  background:rgba(255,255,255,.86);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-soft);
  padding:22px;
}

/* Différenciation Menuiserie (tons plus chauds/projets) */
.panel-menuiserie {
  background: #faf9f6;
  border-color: rgba(217, 119, 6, 0.15);
}
.menuiserie-intro {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}
.menuiserie-intro p {
  font-size: 15px;
  color: var(--ink);
  line-height: 1.8;
  margin: 0;
}

/* Équipements */
#equipements .cards{
  grid-template-columns:repeat(4, 1fr);
}
#equipements .card{
  text-align:left;
}
.definition{
  margin-top:10px;
  color:var(--muted);
  font-size:14px;
  line-height:1.6;
}

/* FAQ accordion */
.faq{
  display:grid;
  gap:12px;
}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:14px 16px;
}
.faq-question{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  cursor:pointer;
  font-weight:800;
  color:var(--ink);
}
.faq-chevron{
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  transition:.2s transform, .2s background;
}
.faq-answer{
  display:none;
  margin-top:10px;
  color:var(--muted);
  line-height:1.7;
}
.faq-item.open .faq-answer{ display:block; }
.faq-item.open .faq-chevron{
  transform:rotate(180deg);
  background:rgba(29, 78, 216, .06);
  border-color:rgba(29, 78, 216, .20);
}

/* Devis */
.devis-box{
  background:rgba(255,255,255,.90);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow);
}
.devis-form{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
  margin-top:14px;
}
.devis-form input,
.devis-form textarea,
.devis-form select{
  padding:12px 12px;
  border-radius:12px;
  border:1px solid rgba(15,23,42,.14);
  outline:none;
  font-family:inherit;
  font-size:14px;
  background:#fff;
}
.devis-form input:focus,
.devis-form textarea:focus,
.devis-form select:focus{
  border-color:rgba(29, 78, 216, .55);
  box-shadow:0 0 0 4px rgba(29, 78, 216, .12);
}
.devis-form textarea{ min-height:120px; grid-column:1/-1; }
.devis-form button{
  grid-column:1/-1;
  background:linear-gradient(135deg, var(--brand), var(--brand-2));
  color:#fff;
  border:none;
  padding:12px 16px;
  border-radius:14px;
  cursor:pointer;
  font-weight:900;
  box-shadow:var(--shadow-soft);
  transition:.2s transform, .2s opacity;
}
.devis-form button:hover{ transform:translateY(-1px); opacity:.96; }

/* Zones */
#zones .zones-list{
  columns:2;
  column-gap:36px;
  font-size:14px;
  color:var(--muted);
}
#zones .zones-list p{ margin:0 0 8px; }

/* Menuiserie Cards */
.menuiserie .cards{ grid-template-columns:repeat(3, 1fr); }

/* Logo Cliquable */
.header-home,
.header-home:link,
.header-home:visited,
.header-home:hover,
.header-home:active{
  text-decoration: none !important;
  color: inherit !important;
}
.header-home{
  display:flex;
  align-items:center;
  gap:12px;
  cursor:pointer;
}
.header-home *{
  text-decoration: none !important;
}

/* Animations JS (Intersection Observer) */
.reveal, .reveal-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.reveal.visible, .reveal-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Footer */
footer{
  margin-top:24px;
  background:transparent;
  color:rgba(15,23,42,.65);
  padding:26px 18px;
  text-align:center;
  font-size:13px;
}
footer a{
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}
footer a:hover{
  opacity: .9;
}

/* Responsive */
@media (max-width: 980px){
  .cards.services-4{ grid-template-columns:repeat(2, 1fr); }
  #equipements .cards{ grid-template-columns:repeat(2, 1fr); }
  .depannage-grid{ grid-template-columns:repeat(2, 1fr); }
  .hero .container{ grid-template-columns:1fr; }
  .hero-box h2{ font-size:30px; }
  .side-grid{ grid-template-columns:1fr 1fr; }
  .header-left{ display:none; }
}

@media (max-width: 768px){
  h2{ font-size:24px; }
  .header-top{
    padding:12px 12px;
  }
  .header-center img{ height:42px; }
  .header-right .mail{ display:none; }
  
  /* Menu mobile scrollable horizontalement */
  .tabs{ 
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
    padding: 0 12px 12px; 
    gap: 8px; 
  }
  .tabs::-webkit-scrollbar { 
    display: none; /* Chrome, Safari, Edge */
  }
  .tab{ 
    flex-shrink: 0;
    padding: 9px 12px; 
    font-size: 13px; 
  }

  .hero-box ul{ grid-template-columns:1fr; }
  .side-grid{ grid-template-columns:1fr; }
  .depannage-grid{ grid-template-columns:1fr; }
  .devis-form{ grid-template-columns:1fr; }
  #zones .zones-list{ columns:1; }
  .menuiserie .cards{ grid-template-columns:1fr 1fr; }
}

@media (max-width: 520px){
  .menuiserie .cards{ grid-template-columns:1fr; }
}