/*
  Primo Rénovation — Feuille de style principale
  Palette : bleu profond #1e3a5f · or #c17f3e · beige #faf8f4 · blanc · anthracite #2d2d2d
*/

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: #444;
  background: #fff;
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a   { text-decoration: none; color: inherit; }
ul  { list-style: none; }

/* ============================================================
   VARIABLES
   ============================================================ */
:root {
  --blue:      #1e3a5f;
  --blue-mid:  #2c5282;
  --blue-lt:   #4a7fb5;
  --gold:      #c17f3e;
  --gold-lt:   #d4a55e;
  --white:     #ffffff;
  --gray-lt:   #f5f5f7;
  --beige:     #faf8f4;
  --gray-bd:   #e5e5e5;
  --gray-dk:   #666;
  --anthracite:#2d2d2d;
  --text:      #444;
  --text-dk:   #222;
  --radius:    10px;
  --shadow:    0 4px 20px rgba(0,0,0,.08);
  --shadow-hv: 0 8px 30px rgba(0,0,0,.15);
  --trans:     .3s ease;
}

/* ============================================================
   TYPOGRAPHIE
   ============================================================ */
h1, h2, h3, h4 { color: var(--anthracite); font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(1.9rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.05rem, 2vw, 1.3rem); }
p  { margin-bottom: 1rem; line-height: 1.7; }
p:last-child { margin-bottom: 0; }

/* ============================================================
   LAYOUT UTILITAIRES
   ============================================================ */
.container       { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section         { padding: 80px 20px; }
.section-bg-gray { background: var(--gray-lt); }
.section-bg-beige{ background: var(--beige); }
.section-bg-blue { background: var(--blue); }
.section-bg-blue h2,
.section-bg-blue h3,
.section-bg-blue p { color: #fff; }

.section-header        { text-align: center; margin-bottom: 50px; }
.section-header h2     { margin-bottom: 12px; }
.section-header > p    { color: var(--gray-dk); max-width: 700px; margin: 0 auto; font-size: 1.03rem; }
.accent-line           { width: 60px; height: 4px; background: var(--gold); border-radius: 2px; margin: 12px auto; }

/* ============================================================
   BOUTONS
   ============================================================ */
.btn {
  display: inline-block; padding: 13px 26px; border-radius: 6px;
  font-weight: 600; font-size: .92rem; cursor: pointer;
  transition: var(--trans); border: 2px solid transparent;
  letter-spacing: .02em; white-space: nowrap;
}
.btn-primary { background: var(--gold); color: #fff; border-color: var(--gold); }
.btn-primary:hover {
  background: var(--gold-lt); border-color: var(--gold-lt);
  transform: translateY(-2px); box-shadow: 0 6px 20px rgba(193,127,62,.3);
}
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.8); }
.btn-outline:hover { background: #fff; color: var(--blue); transform: translateY(-2px); }
.btn-blue    { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-blue:hover { background: var(--blue-mid); border-color: var(--blue-mid); transform: translateY(-2px); }
.btn-group   { display: flex; gap: 14px; flex-wrap: wrap; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,.97); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-bd); padding: 0 20px;
}
.header-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 70px; gap: 8px; position: relative;
}
.logo { font-size: 1.75rem; font-weight: 800; color: var(--blue); letter-spacing: -.02em; }
.logo .dot { color: var(--gold); }

/* Hamburger (CSS-only, sans JavaScript) */
.nav-toggle       { display: none; position: absolute; visibility: hidden; }
.nav-toggle-label {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 8px; order: 3;
}
.nav-toggle-label span {
  display: block; width: 24px; height: 2px;
  background: var(--text-dk); border-radius: 2px; transition: var(--trans);
}
/* Rotation du hamburger quand ouvert */
.nav-toggle:checked + .nav-toggle-label span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle:checked + .nav-toggle-label span:nth-child(2) { opacity: 0; }
.nav-toggle:checked + .nav-toggle-label span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.main-nav { display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center; }
.main-nav a {
  padding: 7px 10px; color: var(--text-dk); font-size: .84rem;
  font-weight: 500; border-radius: 4px; transition: var(--trans);
}
.main-nav a:hover { color: var(--blue); background: var(--gray-lt); }
.header-cta { flex-shrink: 0; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; overflow: hidden; padding-top: 70px;
}
/* Image de fond hero — image temporaire à remplacer par une photo client */
.hero-bg {
  position: absolute; inset: 0;
  background-color: var(--blue);
  background-image: url('https://images.unsplash.com/photo-1484154218962-a197022b5858?auto=format&fit=crop&w=1920&q=80');
  background-size: cover; background-position: center;
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(30,58,95,.90) 0%, rgba(30,58,95,.72) 55%, rgba(44,82,130,.78) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 1200px; margin: 0 auto; padding: 90px 20px 80px; color: #fff;
}
.hero-badge {
  display: inline-block; background: var(--gold); color: #fff;
  padding: 6px 16px; border-radius: 20px; font-size: .81rem; font-weight: 600;
  margin-bottom: 22px; letter-spacing: .04em;
}
.hero h1       { color: #fff; max-width: 720px; margin-bottom: 18px; text-shadow: 0 2px 20px rgba(0,0,0,.3); }
.hero-subtitle {
  font-size: clamp(.95rem,2vw,1.12rem); color: rgba(255,255,255,.9);
  max-width: 600px; margin-bottom: 34px; line-height: 1.75;
}
.hero-tags     { margin-top: 36px; font-size: .78rem; color: rgba(255,255,255,.55); letter-spacing: .07em; text-transform: uppercase; }

/* ============================================================
   INTRO / QUI SOMMES-NOUS
   ============================================================ */
.intro-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.intro-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--blue); color: #fff; padding: 9px 18px;
  border-radius: 6px; font-weight: 700; font-size: .93rem; margin-bottom: 20px;
}
.intro-steps {
  background: var(--beige); border-left: 4px solid var(--gold);
  padding: 18px 20px; border-radius: 0 var(--radius) var(--radius) 0;
  margin-top: 22px; font-size: .9rem; color: var(--gray-dk); line-height: 1.85;
}
.intro-image             { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-hv); }
.intro-image img         { width: 100%; height: 400px; object-fit: cover; }

/* ============================================================
   BANDEAU CHIFFRES CLÉS
   ============================================================ */
.stats-band  { background: var(--blue); padding: 50px 20px; }
.stats-grid  {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; text-align: center;
}
.stat-item   { color: #fff; }
.stat-icon   { font-size: 1.5rem; margin-bottom: 8px; }
.stat-value  { font-size: 1.3rem; font-weight: 800; color: var(--gold); line-height: 1.1; margin-bottom: 4px; }
.stat-label  { font-size: .82rem; color: rgba(255,255,255,.72); font-weight: 500; }

/* ============================================================
   CARTES SERVICES (grille 4 colonnes)
   ============================================================ */
.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.service-card {
  background: #fff; border-radius: var(--radius); padding: 26px 22px;
  box-shadow: var(--shadow); transition: var(--trans); border-top: 3px solid transparent;
}
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hv); border-top-color: var(--gold); }
.service-card .s-icon {
  width: 48px; height: 48px; background: var(--beige); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.35rem; margin-bottom: 14px;
}
.service-card h3 { font-size: .97rem; color: var(--blue); margin-bottom: 8px; }
.service-card p  { font-size: .86rem; color: var(--gray-dk); margin: 0; }

/* ============================================================
   SECTION PRO (fond bleu)
   ============================================================ */
.pro-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 36px; }
.pro-block {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius); padding: 26px 22px; text-align: center;
}
.pro-block .p-icon { font-size: 1.9rem; margin-bottom: 10px; display: block; }
.pro-block h3      { font-size: .97rem; color: var(--gold); margin-bottom: 8px; }
.pro-block p       { font-size: .86rem; color: rgba(255,255,255,.68); margin: 0; }

/* ============================================================
   INTERVENTIONS
   ============================================================ */
.interventions-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.intervention-card {
  background: #fff; border-radius: var(--radius); padding: 28px 22px;
  box-shadow: var(--shadow); transition: var(--trans);
  text-align: center; border-bottom: 3px solid transparent;
}
.intervention-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hv); border-bottom-color: var(--gold); }
.intervention-card .i-icon { font-size: 2rem; margin-bottom: 14px; display: block; }
.intervention-card h3      { font-size: .99rem; color: var(--blue); margin-bottom: 8px; }
.intervention-card p       { font-size: .87rem; color: var(--gray-dk); margin: 0; }

/* ============================================================
   POURQUOI NOUS CHOISIR
   ============================================================ */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.why-card {
  background: #fff; border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow); transition: var(--trans);
}
.why-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hv); }
.why-card .w-icon {
  width: 54px; height: 54px;
  background: linear-gradient(135deg, var(--blue), var(--blue-mid));
  color: #fff; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.35rem; margin-bottom: 16px;
}
.why-card h3 { color: var(--blue); margin-bottom: 8px; font-size: 1.03rem; }
.why-card p  { font-size: .89rem; color: var(--gray-dk); margin: 0; }

/* ============================================================
   TIMELINE ÉTAPES
   ============================================================ */
.timeline        { position: relative; max-width: 750px; margin: 0 auto; }
.timeline::before {
  content: ''; position: absolute; left: 19px; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(to bottom, var(--gold), var(--blue-lt));
}
.timeline-item   { display: flex; gap: 28px; margin-bottom: 32px; align-items: flex-start; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-num    {
  width: 40px; height: 40px; flex-shrink: 0; position: relative; z-index: 1;
  background: var(--gold); color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: .93rem;
  box-shadow: 0 0 0 4px rgba(193,127,62,.18);
}
.timeline-text        { background: #fff; border-radius: var(--radius); padding: 14px 18px; box-shadow: var(--shadow); flex: 1; }
.timeline-text strong { color: var(--blue); display: block; font-size: .97rem; margin-bottom: 3px; }
.timeline-text span   { font-size: .87rem; color: var(--gray-dk); }

/* ============================================================
   RÉALISATIONS
   ============================================================ */
.realisations-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.realisation-card   {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); transition: var(--trans);
}
.realisation-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hv); }
.realisation-ph {
  height: 170px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-lt) 100%);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.4); font-size: .82rem; text-align: center; padding: 20px;
}
.realisation-body     { padding: 18px 20px; }
.realisation-body h3  { color: var(--blue); margin-bottom: 6px; font-size: .97rem; }
.realisation-body p   { font-size: .86rem; color: var(--gray-dk); margin: 0; }
.realisations-note    {
  text-align: center; padding: 22px; background: var(--beige);
  border-radius: var(--radius); margin-top: 20px;
  color: var(--gray-dk); font-style: italic; font-size: .88rem;
}

/* ============================================================
   AVIS CLIENTS
   ============================================================ */
.avis-placeholder {
  text-align: center; padding: 55px 20px; background: var(--gray-lt);
  border-radius: var(--radius); max-width: 580px; margin: 0 auto;
}
.avis-stars { font-size: 1.7rem; color: var(--gold); margin-bottom: 14px; letter-spacing: 4px; }
.avis-placeholder p { color: var(--gray-dk); font-style: italic; margin: 0; }

/* ============================================================
   RÉFÉRENCES & PARTENAIRES
   ============================================================ */
.refs-group             { margin-bottom: 36px; }
.refs-group:last-child  { margin-bottom: 0; }
.refs-group h3          { font-size: .84rem; text-transform: uppercase; letter-spacing: .07em; color: var(--blue); margin-bottom: 14px; font-weight: 700; }
.refs-list              { display: flex; flex-wrap: wrap; gap: 10px; }
.ref-chip               {
  background: #fff; border: 1px solid var(--gray-bd); border-radius: 6px;
  padding: 9px 18px; font-size: .87rem; color: var(--text-dk); font-weight: 600;
  box-shadow: var(--shadow);
}

/* ============================================================
   ZONE D'INTERVENTION
   ============================================================ */
.zone-grid    { display: grid; grid-template-columns: 1fr 2fr; gap: 50px; align-items: start; }
.zone-text h2 { margin-bottom: 12px; }
.zone-text p  { color: var(--gray-dk); }
.zone-cities h3 { color: var(--blue); margin-bottom: 18px; font-size: 1rem; }
.city-list      { display: flex; flex-wrap: wrap; gap: 9px; }
.city-tag {
  background: #fff; border: 2px solid var(--blue-lt); color: var(--blue);
  padding: 7px 15px; border-radius: 20px; font-size: .84rem;
  font-weight: 600; transition: var(--trans);
}
.city-tag:hover     { background: var(--blue); color: #fff; border-color: var(--blue); }
.city-tag-main      { background: var(--blue); color: #fff; border-color: var(--blue); }

/* ============================================================
   ACTUALITÉS
   ============================================================ */
.actu-grid  { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.actu-card  {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); transition: var(--trans);
}
.actu-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hv); }
.actu-img   {
  height: 148px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-lt) 100%);
  display: flex; align-items: center; justify-content: center; font-size: 2.2rem;
}
.actu-body      { padding: 18px 20px; }
.actu-body h3   { font-size: .97rem; color: var(--blue); margin-bottom: 6px; }
.actu-body p    { font-size: .86rem; color: var(--gray-dk); margin: 0; }
.actu-note      { text-align: center; margin-top: 22px; color: var(--gray-dk); font-style: italic; font-size: .88rem; }

/* ============================================================
   INFOS PRATIQUES
   ============================================================ */
.infos-grid  { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }
.infos-text h2 { margin-bottom: 16px; }
.contact-list  { margin-bottom: 26px; }
.contact-item  {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--gray-bd);
}
.contact-item:last-child { border-bottom: none; }
.contact-item .ci-icon {
  width: 42px; height: 42px; background: var(--beige); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
}
.ci-label { font-size: .75rem; color: var(--gray-dk); text-transform: uppercase; letter-spacing: .05em; }
.ci-value { font-weight: 600; color: var(--text-dk); font-size: .94rem; }
.ci-value a { color: inherit; transition: var(--trans); }
.ci-value a:hover { color: var(--blue); }

/* CTA Box */
.cta-box { background: var(--blue); color: #fff; border-radius: var(--radius); padding: 38px 32px; text-align: center; }
.cta-box h3 { color: #fff; font-size: 1.3rem; margin-bottom: 10px; }
.cta-box p  { color: rgba(255,255,255,.82); margin-bottom: 22px; }
.cta-box .btn-group { justify-content: center; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--anthracite); color: rgba(255,255,255,.72); padding: 60px 20px 0; }
.footer-grid {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-logo       { font-size: 1.8rem; font-weight: 800; color: #fff; display: block; margin-bottom: 14px; }
.footer-logo .dot  { color: var(--gold); }
.footer-brand p    { font-size: .87rem; color: rgba(255,255,255,.55); line-height: 1.75; }
.footer-contact    { margin-top: 14px; }
.footer-contact a  { display: block; color: rgba(255,255,255,.68); font-size: .87rem; margin-bottom: 6px; transition: var(--trans); }
.footer-contact a:hover { color: var(--gold); }
.footer-social     { display: flex; gap: 10px; margin-top: 14px; }
.social-link       {
  width: 38px; height: 38px; background: rgba(255,255,255,.1); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: .87rem; font-weight: 700; transition: var(--trans);
}
.social-link:hover { background: var(--gold); }
.footer-col h4 { color: #fff; font-size: .83rem; text-transform: uppercase; letter-spacing: .07em; margin-bottom: 14px; }
.footer-col li { margin-bottom: 7px; }
.footer-col a  { color: rgba(255,255,255,.58); font-size: .84rem; transition: var(--trans); }
.footer-col a:hover { color: var(--gold); }
.footer-bottom {
  max-width: 1200px; margin: 0 auto; padding: 18px 0;
  display: flex; justify-content: space-between; align-items: center;
  font-size: .77rem; color: rgba(255,255,255,.38);
}
.footer-bottom a { color: rgba(255,255,255,.58); transition: var(--trans); }
.footer-bottom a:hover { color: var(--gold); }

/* ============================================================
   PAGE MENTIONS LÉGALES
   ============================================================ */
.page-header    { background: var(--blue); color: #fff; padding: 120px 20px 60px; text-align: center; }
.page-header h1 { color: #fff; margin-bottom: 8px; }
.page-header p  { color: rgba(255,255,255,.65); }
.mentions-content { max-width: 820px; margin: 0 auto; padding: 60px 20px; }
.mentions-content h2 {
  color: var(--blue); font-size: 1.12rem; margin: 36px 0 10px;
  padding-bottom: 8px; border-bottom: 2px solid var(--gray-bd);
}
.mentions-content h2:first-child { margin-top: 0; }
.mentions-content p,
.mentions-content address { color: var(--text); font-style: normal; margin-bottom: 8px; }
.mentions-content a { color: var(--blue); text-decoration: underline; }
.back-link {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--blue); font-weight: 600; margin-bottom: 36px; transition: var(--trans);
}
.back-link:hover { gap: 14px; }

/* ============================================================
   RESPONSIVE — TABLETTE (≤ 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .services-grid,
  .interventions-grid,
  .pro-grid         { grid-template-columns: repeat(2, 1fr); }
  .stats-grid       { grid-template-columns: repeat(3, 1fr); }
  .footer-grid      { grid-template-columns: 1fr 1fr; }
  .intro-grid,
  .infos-grid,
  .zone-grid        { grid-template-columns: 1fr; gap: 30px; }
  .zone-grid        { gap: 30px; }
}

/* ============================================================
   RESPONSIVE — MOBILE (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  .section { padding: 50px 16px; }

  /* Navigation mobile */
  .nav-toggle-label { display: flex; }
  .header-cta       { display: none; }
  .main-nav {
    display: none; position: absolute; top: 70px; left: 0; right: 0;
    background: #fff; padding: 12px 16px 16px;
    border-top: 1px solid var(--gray-bd); box-shadow: 0 8px 24px rgba(0,0,0,.1);
    flex-direction: column; gap: 2px; z-index: 999;
  }
  /* Afficher le menu quand la checkbox est cochée */
  .nav-toggle:checked ~ .main-nav { display: flex; }
  .main-nav a { padding: 10px 14px; font-size: .94rem; border-radius: 6px; }

  .hero { min-height: 85vh; }
  .hero-content { padding: 60px 16px; }
  .btn-group          { flex-direction: column; gap: 10px; }
  .btn-group .btn     { text-align: center; width: 100%; max-width: 300px; }

  /* Toutes les grilles passent en 1 colonne */
  .intro-grid,
  .services-grid,
  .interventions-grid,
  .pro-grid,
  .why-grid,
  .realisations-cards,
  .actu-grid,
  .infos-grid,
  .zone-grid          { grid-template-columns: 1fr; }

  .stats-grid         { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .footer-grid        { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom      { flex-direction: column; gap: 8px; text-align: center; }
  .cta-box            { padding: 28px 18px; }
  .cta-box .btn-group { flex-direction: column; }
  .why-grid           { grid-template-columns: 1fr; }
}

/* ============================================================
   RESPONSIVE — PETIT MOBILE (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  h1 { font-size: 1.72rem; }
}