/* ============================================
   MONDECENNALE.FR — Styles principaux
   Palette: Bleu BTP #1A3C6E / Orange #E8580A
   ============================================ */

:root {
  --bleu:       #1A3C6E;
  --bleu-clair: #2A5BA8;
  --bleu-bg:    #EBF2FF;
  --orange:     #E8580A;
  --orange-h:   #C44A08;
  --gris-1:     #F7F8FA;
  --gris-2:     #E5E7EB;
  --gris-3:     #9CA3AF;
  --texte:      #1F2937;
  --blanc:      #FFFFFF;
  --rayon:      8px;
  --ombre:      0 2px 16px rgba(26,60,110,0.10);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--texte);
  background: var(--blanc);
  line-height: 1.65;
}

/* ============ TYPOGRAPHIE ============ */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; color: var(--bleu); }
h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.35rem, 3vw, 1.9rem); margin-top: 2rem; margin-bottom: 0.75rem; }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.35rem); margin-top: 1.5rem; margin-bottom: 0.5rem; }
p  { margin-bottom: 1rem; }
a  { color: var(--bleu-clair); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding-left: 1.5rem; margin-bottom: 1rem; }
li { margin-bottom: 0.35rem; }
strong { color: var(--bleu); }

/* ============ LAYOUT ============ */
.container  { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }
.container--sm { max-width: 760px; margin: 0 auto; padding: 0 1.25rem; }

/* ============ HEADER ============ */
.site-header {
  background: var(--bleu);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 0.85rem; padding-bottom: 0.85rem;
}
.logo {
  display: flex; align-items: center; gap: 0.5rem;
  color: var(--blanc); font-size: 1.3rem; font-weight: 800;
  text-decoration: none; letter-spacing: -0.5px;
}
.logo span { color: var(--orange); }
.logo-icon { font-size: 1.5rem; }

.nav-links { display: flex; gap: 1.25rem; list-style: none; padding: 0; margin: 0; }
.nav-links a {
  color: rgba(255,255,255,0.88); font-size: 0.92rem; font-weight: 500;
  padding: 0.3rem 0; border-bottom: 2px solid transparent; transition: all 0.2s;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--blanc); border-bottom-color: var(--orange); text-decoration: none;
}

.nav-cta {
  background: var(--orange); color: var(--blanc) !important;
  padding: 0.45rem 1rem !important; border-radius: var(--rayon);
  border-bottom: none !important; font-weight: 700 !important;
  transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--orange-h) !important; }

.hamburger { display: none; background: none; border: none; cursor: pointer; }
.hamburger span { display: block; width: 24px; height: 2px; background: white; margin: 5px 0; border-radius: 2px; transition: all 0.3s; }

/* ============ HERO ============ */
.hero {
  background: linear-gradient(135deg, var(--bleu) 0%, var(--bleu-clair) 100%);
  color: var(--blanc);
  padding: 4rem 0 3rem;
  text-align: center;
}
.hero h1 { color: var(--blanc); margin-bottom: 1rem; }
.hero .subtitle {
  font-size: 1.15rem; color: rgba(255,255,255,0.85);
  max-width: 620px; margin: 0 auto 1.75rem;
}
.hero-badges {
  display: flex; gap: 0.75rem; justify-content: center;
  flex-wrap: wrap; margin-bottom: 2rem;
}
.badge {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--blanc); padding: 0.3rem 0.85rem;
  border-radius: 100px; font-size: 0.85rem; font-weight: 500;
}

/* ============ BOUTONS ============ */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.75rem; border-radius: var(--rayon);
  font-weight: 700; font-size: 1rem; cursor: pointer;
  border: none; text-decoration: none; transition: all 0.2s;
  line-height: 1;
}
.btn-primary {
  background: var(--orange); color: var(--blanc);
  box-shadow: 0 4px 14px rgba(232,88,10,0.35);
}
.btn-primary:hover { background: var(--orange-h); transform: translateY(-1px); text-decoration: none; color: var(--blanc); }

.btn-secondary {
  background: var(--blanc); color: var(--bleu);
  border: 2px solid var(--bleu);
}
.btn-secondary:hover { background: var(--bleu-bg); text-decoration: none; }

.btn-lg { padding: 1rem 2.25rem; font-size: 1.1rem; }
.btn-full { width: 100%; justify-content: center; }

/* ============ SECTIONS ============ */
section { padding: 3.5rem 0; }
.section-alt { background: var(--gris-1); }
.section-blue { background: var(--bleu); color: var(--blanc); }
.section-blue h2 { color: var(--blanc); }
.section-title { text-align: center; margin-bottom: 0.5rem; }
.section-sub { text-align: center; color: var(--gris-3); margin-bottom: 2.5rem; font-size: 1.05rem; }

/* ============ CARDS ============ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--blanc); border-radius: 12px;
  padding: 1.75rem; box-shadow: var(--ombre);
  border: 1px solid var(--gris-2);
}
.card-icon { font-size: 2rem; margin-bottom: 0.75rem; }
.card h3 { margin-top: 0; font-size: 1.1rem; }
.card p { color: #6B7280; margin-bottom: 0; font-size: 0.95rem; }

/* ============ FORMULAIRE LEAD ============ */
#form-lead {
  background: var(--blanc); border-radius: 14px;
  padding: 2.25rem; box-shadow: var(--ombre);
  border: 1px solid var(--gris-2);
  max-width: 680px; margin: 0 auto;
}
#form-lead h2 { text-align: center; margin-bottom: 0.25rem; margin-top: 0; }
.form-subtitle { text-align: center; color: var(--gris-3); margin-bottom: 1.75rem; font-size: 0.95rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1rem; }
.form-group label { font-size: 0.88rem; font-weight: 600; color: var(--bleu); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.7rem 0.9rem;
  border: 1.5px solid var(--gris-2);
  border-radius: var(--rayon);
  font-size: 0.97rem; color: var(--texte);
  background: var(--blanc);
  transition: border-color 0.2s;
  font-family: inherit;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--bleu-clair);
  box-shadow: 0 0 0 3px rgba(42,91,168,0.12);
}
.form-group textarea { resize: vertical; min-height: 90px; }
.form-group.full { grid-column: 1 / -1; }

.form-rgpd {
  font-size: 0.8rem; color: var(--gris-3);
  text-align: center; margin-top: 0.75rem;
}
.form-success {
  display: none; text-align: center; padding: 2rem;
  background: #ECFDF5; border-radius: var(--rayon);
  color: #065F46;
}
.form-success svg { width: 48px; height: 48px; margin-bottom: 1rem; }

/* ============ MÉTIERS GRID ============ */
.metiers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}
.metier-card {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 0.5rem;
  background: var(--blanc); border: 1.5px solid var(--gris-2);
  border-radius: 10px; padding: 1.25rem 0.75rem;
  text-decoration: none; color: var(--texte);
  transition: all 0.2s; text-align: center; font-size: 0.92rem; font-weight: 500;
}
.metier-card:hover {
  border-color: var(--bleu-clair);
  background: var(--bleu-bg);
  color: var(--bleu); transform: translateY(-2px);
  text-decoration: none;
}
.metier-card .emoji { font-size: 1.75rem; }

/* ============ PRIX TABLE ============ */
.prix-table {
  width: 100%; border-collapse: collapse;
  background: var(--blanc); border-radius: 10px;
  overflow: hidden; box-shadow: var(--ombre);
}
.prix-table th {
  background: var(--bleu); color: var(--blanc);
  padding: 0.9rem 1.25rem; text-align: left; font-size: 0.9rem;
}
.prix-table td {
  padding: 0.85rem 1.25rem; border-bottom: 1px solid var(--gris-2);
  font-size: 0.95rem;
}
.prix-table tr:last-child td { border-bottom: none; }
.prix-table tr:nth-child(even) td { background: var(--gris-1); }
.tag-metier {
  background: var(--bleu-bg); color: var(--bleu);
  padding: 0.2rem 0.65rem; border-radius: 100px;
  font-size: 0.82rem; font-weight: 600;
}

/* ============ FAQ ============ */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  border: 1.5px solid var(--gris-2);
  border-radius: var(--rayon); margin-bottom: 0.75rem;
  overflow: hidden;
}
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.1rem 1.25rem; cursor: pointer;
  background: var(--blanc); font-weight: 600; font-size: 0.97rem;
  color: var(--bleu); gap: 1rem;
}
.faq-question:hover { background: var(--bleu-bg); }
.faq-icon { flex-shrink: 0; transition: transform 0.3s; font-size: 1.2rem; color: var(--orange); }
.faq-answer {
  display: none; padding: 0 1.25rem 1.1rem;
  font-size: 0.95rem; color: #4B5563;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-item.open .faq-answer { display: block; }

/* ============ ETAPES ============ */
.etapes { display: flex; flex-direction: column; gap: 1.25rem; }
.etape {
  display: flex; gap: 1.25rem; align-items: flex-start;
}
.etape-num {
  flex-shrink: 0; width: 44px; height: 44px;
  background: var(--orange); color: var(--blanc);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem;
}
.etape-content h3 { margin-top: 0; font-size: 1.05rem; }
.etape-content p { margin-bottom: 0; color: #4B5563; font-size: 0.95rem; }

/* ============ TRUST BAR ============ */
.trust-bar {
  background: var(--bleu-bg); border-top: 1px solid var(--gris-2);
  border-bottom: 1px solid var(--gris-2); padding: 1rem 0;
}
.trust-items {
  display: flex; justify-content: center; flex-wrap: wrap;
  gap: 2rem; align-items: center;
}
.trust-item {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.9rem; color: var(--bleu); font-weight: 500;
}
.trust-item .icon { font-size: 1.2rem; color: var(--orange); }

/* ============ BREADCRUMB ============ */
.breadcrumb {
  padding: 0.75rem 0; font-size: 0.85rem; color: var(--gris-3);
}
.breadcrumb a { color: var(--gris-3); }
.breadcrumb a:hover { color: var(--bleu-clair); }
.breadcrumb span { margin: 0 0.35rem; }

/* ============ ARTICLE CONTENT ============ */
.article-content { max-width: 760px; margin: 0 auto; }
.article-content h2 { padding-top: 0.5rem; border-top: 3px solid var(--bleu-bg); margin-top: 2.5rem; }
.article-content h2:first-child { border-top: none; margin-top: 0; }
.highlight-box {
  background: var(--bleu-bg); border-left: 4px solid var(--bleu-clair);
  padding: 1.25rem 1.5rem; border-radius: 0 var(--rayon) var(--rayon) 0;
  margin: 1.5rem 0;
}
.highlight-box p { margin-bottom: 0; }
.warning-box {
  background: #FFF7ED; border-left: 4px solid var(--orange);
  padding: 1.25rem 1.5rem; border-radius: 0 var(--rayon) var(--rayon) 0;
  margin: 1.5rem 0;
}
.warning-box p { margin-bottom: 0; }

/* ============ CTA BAND ============ */
.cta-band {
  background: linear-gradient(135deg, var(--bleu) 0%, var(--bleu-clair) 100%);
  padding: 3.5rem 0; text-align: center; color: var(--blanc);
}
.cta-band h2 { color: var(--blanc); margin-bottom: 0.75rem; }
.cta-band p { color: rgba(255,255,255,0.8); margin-bottom: 1.75rem; font-size: 1.05rem; }
.cta-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-white { background: var(--blanc); color: var(--bleu); }
.btn-white:hover { background: var(--gris-1); color: var(--bleu); text-decoration: none; }
.btn-outline-white {
  background: transparent; color: var(--blanc);
  border: 2px solid rgba(255,255,255,0.6);
}
.btn-outline-white:hover { background: rgba(255,255,255,0.1); color: var(--blanc); text-decoration: none; }

/* ============ FOOTER ============ */
.site-footer {
  background: #0F2447; color: rgba(255,255,255,0.75);
  padding: 3rem 0 1.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem; margin-bottom: 2rem;
}
.footer-brand .logo { font-size: 1.2rem; margin-bottom: 0.75rem; display: inline-flex; }
.footer-brand p { font-size: 0.88rem; color: rgba(255,255,255,0.6); margin-bottom: 0; }
.footer-col h4 { color: var(--blanc); font-size: 0.9rem; font-weight: 700; margin-bottom: 0.85rem; text-transform: uppercase; letter-spacing: 0.5px; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a { color: rgba(255,255,255,0.65); font-size: 0.88rem; }
.footer-col a:hover { color: var(--blanc); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.25rem; text-align: center;
  font-size: 0.82rem; color: rgba(255,255,255,0.45);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--bleu); padding: 1rem 1.25rem; gap: 0; }
  .nav-links.open { display: flex; }
  .nav-links li { border-bottom: 1px solid rgba(255,255,255,0.1); }
  .nav-links a { display: block; padding: 0.7rem 0; border-bottom: none !important; }
  .hamburger { display: block; }
  .site-header .container { position: relative; }

  .hero { padding: 2.5rem 0 2rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 1.75rem; }
  .prix-table { font-size: 0.85rem; }
  .prix-table th, .prix-table td { padding: 0.65rem 0.75rem; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .etapes { gap: 1rem; }
  .cta-btns { flex-direction: column; align-items: center; }
}