/* ============================================================
   JLB ASSOCIES — Feuille de style principale
   Palette : bleu nuit / anthracite / noir / blanc cassé / or
   ============================================================ */

/* --- Import typographies via Google Fonts (fallbacks sûrs) --- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400&family=Source+Sans+3:wght@300;400;500;600;700&display=swap');

/* --- Variables CSS --- */
:root {
  --bleu-nuit:      #0b1a2e;
  --bleu-marine:    #0d2240;
  --bleu-repub:     #1a3a6b;
  --anthracite:     #1e2530;
  --noir:           #0d1117;
  --or:             #b8963e;
  --or-clair:       #d4a84b;
  --blanc-casse:    #f5f2ed;
  --gris-clair:     #e8e4dd;
  --gris-moyen:     #8a8f9a;
  --gris-texte:     #ccc9c0;
  --blanc:          #ffffff;

  --font-serif:     'Cormorant Garamond', 'Georgia', 'Times New Roman', serif;
  --font-sans:      'Source Sans 3', 'Helvetica Neue', 'Arial', sans-serif;

  --transition:     0.3s ease;
  --radius:         3px;
  --max-width:      1200px;
  --section-pad:    100px 0;
}

/* --- Reset & base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--noir);
  color: var(--blanc-casse);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* --- Typographie --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.25;
  color: var(--blanc-casse);
  letter-spacing: 0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 4rem); font-weight: 400; }
h2 { font-size: clamp(1.8rem, 3.5vw, 3rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.9rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-family: var(--font-sans); font-weight: 600; letter-spacing: 0.05em; }
h5 { font-size: 1rem; font-family: var(--font-sans); font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; }

p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--gris-texte);
  max-width: 72ch;
}

p.lead {
  font-size: 1.15rem;
  color: var(--blanc-casse);
  font-weight: 300;
  line-height: 1.9;
}

a {
  color: var(--or);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--or-clair); }

strong, b { font-weight: 600; color: var(--blanc-casse); }

ul, ol { padding-left: 1.5rem; }
li { margin-bottom: 0.4rem; line-height: 1.7; color: var(--gris-texte); }

/* --- Séparateur or --- */
.or-line {
  display: block;
  width: 48px;
  height: 2px;
  background: var(--or);
  margin: 1.5rem 0;
}
.or-line.center { margin: 1.5rem auto; }

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

section { padding: var(--section-pad); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 40px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  transition: background var(--transition), backdrop-filter var(--transition);
}

.nav.scrolled {
  background: rgba(11, 26, 46, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(184, 150, 62, 0.15);
}

.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-decoration: none;
}

.nav-logo-main {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--blanc-casse);
  letter-spacing: 0.08em;
}

.nav-logo-sub {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  font-weight: 400;
  color: var(--or);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-top: 3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gris-clair);
  text-decoration: none;
  transition: color var(--transition);
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--or);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--blanc-casse);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--or) !important;
  border: 1px solid var(--or);
  padding: 9px 22px;
  transition: background var(--transition), color var(--transition) !important;
}

.nav-cta:hover {
  background: var(--or) !important;
  color: var(--noir) !important;
}

.nav-cta::after { display: none !important; }

/* Menu mobile */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 1.5px;
  background: var(--blanc-casse);
  transition: var(--transition);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--bleu-nuit);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, var(--noir) 0%, var(--bleu-nuit) 50%, var(--bleu-marine) 100%);
  z-index: 0;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184,150,62,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184,150,62,0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
  padding-top: 80px;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--or);
  border: 1px solid rgba(184,150,62,0.4);
  padding: 8px 20px;
  margin-bottom: 40px;
}

.hero h1 {
  color: var(--blanc-casse);
  margin-bottom: 12px;
  max-width: 820px;
}

.hero h1 em {
  font-style: italic;
  color: var(--or);
}

.hero-subtitle {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: 32px;
  display: block;
}

.hero-desc {
  max-width: 640px;
  font-size: 1.1rem;
  color: var(--gris-texte);
  line-height: 1.85;
  margin-bottom: 56px;
}

.hero-desc strong { color: var(--blanc-casse); }

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.hero-metrics {
  position: relative;
  z-index: 2;
  border-top: 1px solid rgba(184,150,62,0.15);
  margin-top: 80px;
  padding-top: 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 40px;
  padding-right: 40px;
  padding-bottom: 80px;
}

.metric-item {
  text-align: center;
}

.metric-number {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 300;
  color: var(--blanc-casse);
  line-height: 1;
  display: block;
  margin-bottom: 8px;
}

.metric-number span.unit {
  font-size: 1.5rem;
  color: var(--or);
}

.metric-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gris-moyen);
}

/* --- Boutons --- */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 16px 36px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
}

.btn-primary {
  background: var(--or);
  color: var(--noir);
}
.btn-primary:hover {
  background: var(--or-clair);
  color: var(--noir);
}

.btn-outline {
  background: transparent;
  color: var(--blanc-casse);
  border: 1px solid rgba(245,242,237,0.3);
}
.btn-outline:hover {
  border-color: var(--blanc-casse);
  color: var(--blanc-casse);
}

.btn-outline-gold {
  background: transparent;
  color: var(--or);
  border: 1px solid rgba(184,150,62,0.5);
}
.btn-outline-gold:hover {
  background: var(--or);
  color: var(--noir);
}

/* --- Sections titres --- */
.section-header {
  margin-bottom: 64px;
}

.section-header.centered {
  text-align: center;
}

.section-header.centered .or-line {
  margin-left: auto;
  margin-right: auto;
}

.section-header.centered p {
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--or);
  display: block;
  margin-bottom: 16px;
}

.section-header h2 { margin-bottom: 0; }

/* --- Cartes services --- */
.service-card {
  background: var(--anthracite);
  border: 1px solid rgba(184,150,62,0.12);
  padding: 44px 36px;
  transition: border-color var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--or);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  border-color: rgba(184,150,62,0.35);
  transform: translateY(-4px);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--or);
  fill: none;
  stroke-width: 1.5;
}

.service-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--blanc-casse);
}

.service-card h4 {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--blanc-casse);
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}

.service-card p {
  font-size: 0.9rem;
  line-height: 1.75;
  max-width: 100%;
}

.service-card ul {
  margin-top: 16px;
  padding-left: 0;
  list-style: none;
}

.service-card ul li {
  font-size: 0.87rem;
  padding: 6px 0;
  padding-left: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  position: relative;
  color: var(--gris-texte);
}

.service-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 1px;
  background: var(--or);
}

/* --- Section fond foncé / clair alternatif --- */
.section-dark { background: var(--noir); }
.section-mid  { background: var(--bleu-nuit); }
.section-card { background: var(--anthracite); }

/* --- Bloc confidentiel / bandeau --- */
.confidentiality-band {
  background: var(--bleu-marine);
  border-top: 1px solid rgba(184,150,62,0.2);
  border-bottom: 1px solid rgba(184,150,62,0.2);
  padding: 60px 0;
  text-align: center;
}

.confidentiality-band h3 {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.confidentiality-band p {
  margin: 0 auto;
  font-size: 0.95rem;
  max-width: 640px;
}

/* --- Trust / valeurs --- */
.trust-item {
  padding: 36px;
  border-top: 2px solid rgba(184,150,62,0.2);
}

.trust-item h4 {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: 12px;
}

.trust-item p {
  font-size: 0.88rem;
  max-width: 100%;
}

/* --- Formulaire de contact --- */
.form-group {
  margin-bottom: 28px;
}

.form-group label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gris-moyen);
  margin-bottom: 10px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--blanc-casse);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 14px 18px;
  outline: none;
  transition: border-color var(--transition);
  -webkit-appearance: none;
  border-radius: 0;
}

.form-group input:focus,
.form-group select,
.form-group textarea:focus {
  border-color: var(--or);
}

.form-group select {
  cursor: pointer;
  background-color: #1a2535;
}

.form-group select option {
  background: var(--anthracite);
  color: var(--blanc-casse);
}

.form-group textarea {
  resize: vertical;
  min-height: 160px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-notice {
  font-size: 0.8rem;
  color: var(--gris-moyen);
  font-style: italic;
  margin-top: 24px;
}

.form-success, .form-error {
  padding: 16px 24px;
  margin-bottom: 24px;
  font-size: 0.9rem;
  display: none;
}

.form-success {
  background: rgba(0, 100, 60, 0.2);
  border: 1px solid rgba(0, 180, 100, 0.3);
  color: #7fd4a5;
}

.form-error {
  background: rgba(120, 0, 0, 0.2);
  border: 1px solid rgba(200, 50, 50, 0.3);
  color: #e08080;
}

/* --- Clients / profils --- */
.profile-item {
  border: 1px solid rgba(184,150,62,0.15);
  padding: 32px 28px;
  text-align: center;
  transition: border-color var(--transition);
}

.profile-item:hover {
  border-color: rgba(184,150,62,0.4);
}

.profile-item h4 {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blanc-casse);
  margin-bottom: 10px;
}

.profile-item p {
  font-size: 0.82rem;
  max-width: 100%;
  text-align: center;
}

/* --- Processus steps --- */
.step-item {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  padding: 36px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.step-number {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 300;
  color: rgba(184,150,62,0.25);
  line-height: 1;
  min-width: 72px;
  text-align: right;
}

.step-content h4 {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--blanc-casse);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.step-content p {
  font-size: 0.88rem;
  max-width: 100%;
}

/* --- Footer --- */
footer {
  background: var(--noir);
  border-top: 1px solid rgba(184,150,62,0.15);
  padding: 72px 0 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-brand {}

.footer-logo-main {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--blanc-casse);
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 4px;
}

.footer-logo-sub {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  color: var(--or);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 24px;
}

.footer-brand p {
  font-size: 0.85rem;
  max-width: 280px;
  line-height: 1.75;
}

.footer-col h5 {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  border: none;
  margin-bottom: 0;
  padding: 5px 0;
}

.footer-col ul li a {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--gris-moyen);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-col ul li a:hover { color: var(--blanc-casse); }

.footer-bottom {
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.78rem;
  color: var(--gris-moyen);
  max-width: 100%;
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 0.78rem;
  color: var(--gris-moyen);
}

.footer-legal a:hover { color: var(--blanc-casse); }

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* --- Page hero (sous-pages) --- */
.page-hero {
  padding: 160px 0 80px;
  background: linear-gradient(180deg, var(--bleu-nuit) 0%, var(--noir) 100%);
  border-bottom: 1px solid rgba(184,150,62,0.12);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184,150,62,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184,150,62,0.03) 1px, transparent 1px);
  background-size: 64px 64px;
}

.page-hero .container { position: relative; z-index: 1; }

.page-hero h1 { margin-bottom: 16px; }

.page-hero .lead { max-width: 680px; }

/* --- Divider --- */
.divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin: 0;
}

/* --- Expertise list --- */
.expertise-list {
  list-style: none;
  padding: 0;
  margin-top: 24px;
}

.expertise-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 0.9rem;
  color: var(--gris-texte);
}

.expertise-list li::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--or);
  margin-top: 12px;
  flex-shrink: 0;
}

/* --- CGV --- */
.cgv-article {
  padding: 48px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.cgv-article:last-child { border-bottom: none; }

.cgv-article h3 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  color: var(--blanc-casse);
}

.cgv-article p + p { margin-top: 14px; }

.cgv-article ul {
  margin-top: 14px;
  margin-bottom: 14px;
}

/* --- Responsive --- */
@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .hero-metrics { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  :root { --section-pad: 72px 0; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; gap: 40px; }
  .container { padding: 0 24px; }
  .hero-content { padding: 0 24px; padding-top: 80px; }
  .hero-metrics { padding-left: 24px; padding-right: 24px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav { padding: 0 24px; }

  .nav-mobile-open .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    background: rgba(11,26,46,0.98);
    justify-content: center;
    align-items: center;
    gap: 32px;
    z-index: 999;
  }

  .nav-mobile-open .nav-links a {
    font-size: 1.1rem;
    letter-spacing: 0.12em;
  }

  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-legal { flex-wrap: wrap; }
  .form-row { grid-template-columns: 1fr; }
  .hero-metrics { grid-template-columns: repeat(2, 1fr); }
  .step-item { flex-direction: column; gap: 12px; }
  .step-number { font-size: 2.5rem; text-align: left; min-width: unset; }
  .page-hero { padding: 130px 0 60px; }
}

@media (max-width: 480px) {
  .hero-metrics { grid-template-columns: 1fr 1fr; gap: 24px; }
  .metric-number { font-size: 2.4rem; }
  .hero-ctas { flex-direction: column; align-items: flex-start; }
  .btn { padding: 14px 28px; }
}