/* --- Variables de Style --- */
:root{
  --brand: #006A63;
  --brand-light: #E6F0EF;
  --accent: #0f172a;
  --text: #111827;
  --muted: #5b6470;
  --card-bg: #ffffff;
  --page-bg: #f7faf9;
  --border-color: #e6eef0;
}

/* --- Styles Généraux --- */
.page-etude-de-cas {
  background-color: var(--page-bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

/* --- Conteneurs & Layout --- */
.page-etude-de-cas .container {
  width: 90%;
  max-width: 1140px;
  margin: 0 auto;
}
.page-etude-de-cas .grid { display: grid; gap: 24px; }

/* --- Typographie --- */
.page-etude-de-cas h1 { font-size: 2.4rem; line-height: 1.15; margin: 0.8rem 0 0; color: var(--accent); letter-spacing: -0.025em; }
.page-etude-de-cas h2 { font-size: 1.5rem; margin: 0 0 1rem; letter-spacing: -0.01em; color: var(--accent); border-bottom: 2px solid var(--brand-light); padding-bottom: 0.5rem;}
.page-etude-de-cas h3 { font-size: 1.1rem; color: var(--accent); margin: 0 0 0.25rem; }
.page-etude-de-cas main p { color: var(--text); line-height: 1.65; margin: 0.6rem 0; }
.page-etude-de-cas .lead { font-size: 1.15rem; color: var(--accent); opacity: 0.9; margin-top: 1rem; }
.page-etude-de-cas .muted { color: var(--muted); font-size: 0.9rem; }
.page-etude-de-cas main a { color: var(--brand); text-decoration: none; font-weight: 600; }
.page-etude-de-cas main a:hover { text-decoration: underline; }

/* --- Composants --- */
.page-etude-de-cas .hero {
  background: linear-gradient(120deg, var(--brand-light), #f2fbf5 60%);
  border-bottom: 1px solid var(--border-color);
  padding-block: 2rem;
  padding-top: calc(var(--header-height-desktop) + 2rem);
}

.page-etude-de-cas .badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background-color: var(--brand-light);
  color: var(--brand);
  font-weight: 600;
  font-size: 0.85rem;
  border: 1px solid rgba(0, 106, 99, 0.15);
}

.page-etude-de-cas .card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.02), 0 12px 24px -24px rgba(16, 24, 40, 0.2);
}

.page-etude-de-cas .metric { text-align: center; }
.page-etude-de-cas .metric .value { font-size: 2.2rem; font-weight: 800; color: var(--brand); }
.page-etude-de-cas .metric .value a { font-size: 1.3rem; font-weight: 600; color: var(--brand); }
.page-etude-de-cas .metric .label { color: var(--muted); display: block; margin-top: -5px; font-size: 0.9rem; }

.page-etude-de-cas .quote {
  border-left: 4px solid var(--brand);
  padding-left: 16px;
  margin: 1.5rem 0;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--accent);
}

.page-etude-de-cas .list { list-style: none; padding-left: 0; margin: 0; }
.page-etude-de-cas .list li { display: flex; gap: 0.75rem; align-items: flex-start; margin-bottom: 0.75rem; }

.page-etude-de-cas .check {
  flex-shrink: 0;
  margin-top: 5px;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background-color: var(--brand-light);
  display: grid;
  place-items: center;
}

.page-etude-de-cas .check::after {
  content: '✔';
  color: var(--brand);
  font-size: 0.8rem;
  font-weight: bold;
}

.page-etude-de-cas .tag {
  display: inline-block;
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  background: var(--page-bg);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  color: var(--muted);
  margin-right: 0.35rem;
  margin-top: 0.35rem;
}

.page-etude-de-cas .client-logo {
    display: block;
    max-width: 240px; 
    height: auto;
    margin: 0.5rem auto 1.5rem auto; 
}

.page-etude-de-cas .cta-card {
    background: linear-gradient(135deg, var(--brand), #004d48);
    color: white;
    text-align: center;
    padding: 40px 24px;
    border-radius: 18px;
    margin-top: 24px;
}

.page-etude-de-cas .cta-card h2 { color: white; border: none; }
.page-etude-de-cas .cta-card p { color: white; opacity: 0.9; max-width: 600px; margin: 1rem auto; }

.page-etude-de-cas .cta-button {
    display: inline-block;
    background-color: white;
    color: var(--brand);
    padding: 12px 24px;
    border-radius: 999px;
    font-weight: bold;
    text-decoration: none;
    margin-top: 1rem;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.page-etude-de-cas .cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.page-etude-de-cas .footer-note { text-align: center; font-size: 0.85rem; color: #6b7280; margin-top: 3rem; }

/* --- Responsive Design --- */
@media(min-width: 880px) {
    .page-etude-de-cas .main-grid { grid-template-columns: 1.1fr 0.9fr; }
    .page-etude-de-cas .grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
}

@media(min-width: 960px) {
    .page-etude-de-cas .grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 879px) {
    .page-etude-de-cas .container { padding: 16px; }
    .page-etude-de-cas h1 { font-size: 1.8rem; }
    .page-etude-de-cas .lead { font-size: 1.1rem; }
}