/* ===== Layout principal ===== */
.main-with-cards {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  max-width: 1400px;
  margin: auto;
  padding: 1rem;
}

.main-content {
  flex: 2;
}

.vertical-cards {
  flex: 0.8;
}

/* ===== Styles des cartes ===== */
.vertical-cards .card {
  padding: 1rem;
  font-size: 0.95rem;
}

.vertical-cards .card h2 {
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
}

.vertical-cards .card ul {
  padding-left: 1rem;
}

.vertical-cards .card ul li {
  margin-bottom: 0.4rem;
}

/* ===== Version mobile ===== */
@media (max-width: 900px) {
  .main-with-cards {
    flex-direction: column;
    gap: 1.5rem;
  }

  .main-content,
  .vertical-cards {
    flex: 1 1 100%;
  }

  .vertical-cards .card {
    font-size: 1rem;
    padding: 1.2rem;
  }

  .vertical-cards .card h2 {
    font-size: 1.2rem;
  }

  .hero-image,
  .zoomable,
  img {
    max-width: 100%;
    height: auto;
  }

  main {
    padding: 0 1rem;
  }

  .card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

/* ===== Version très petite (téléphone) ===== */
@media (max-width: 600px) {
  h1 {
    font-size: 1.6rem;
  }

  h2 {
    font-size: 1.2rem;
  }

  p, li {
    font-size: 1rem;
    line-height: 1.5;
  }

  .main-with-cards {
    padding: 0.5rem;
  }
}

/* --- Gamification Banner: 2025 Minimalist Style (Black / White / Grey / Blue Accent) --- */
.gamification-banner {
  background: #f7f8fa;
  color: #111;
  text-align: center;
  padding: 3rem 2rem;
  border-radius: 0.8rem;
  margin: 3rem auto;
  max-width: 760px;
  border: 1px solid #e0e0e0;
}

.gamification-banner h2 {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  color: #0a0a0a;
}

.gamification-banner p {
  font-size: 1.05rem;
  color: #444;
  line-height: 1.6;
  margin-bottom: 1.8rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Call to Action Button --- */
.cta-button {
  display: inline-block;
  background: #0F9ED5;
  color: #fff;
  padding: 0.9rem 2rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  transition: background 0.25s ease, color 0.25s ease;
}

.cta-button:hover {
  background: #0F9ED5;
  color: #fff;
}

/* --- Optional: Dark Mode --- */
@media (prefers-color-scheme: dark) {
  .gamification-banner {
    background: #0F9ED5;
    color: #f0f0f0;
    border-color: #333;
  }

  .gamification-banner h2 {
    color: #ffffff;
  }

  .gamification-banner p {
    color: #cccccc;
  }

  .cta-button {
    background: #f0f0f0;
    color: #111;
  }

  .cta-button:hover {
    background: #0F9ED5;
    color: #fff;
  }
}

/* MAIN CONTENT WRAPPER */
.main-content {
  max-width: 1000px;
  margin: 0 auto;
  padding: 30px 20px;
  line-height: 1.6;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #222;
}

/* H1 — main page title */
.main-content h1 {
  font-size: 2.2em;
  font-weight: 700;
  margin-bottom: 12px;
  color: #0F9ED5;
  text-align: center; /* optional: center main heading */
}

/* H2 — section/subtitle headings */
.main-content h2 {
  font-size: 1.5em;
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 10px;
  color: #333;
  line-height: 1.4;
}

/* H3 — subsection headings / descriptive text */
.main-content h3 {
  font-size: 1.2em;
  font-weight: 500;
  margin-top: 12px;
  margin-bottom: 16px;
  color: #555;
  line-height: 1.5;
}

/* Paragraphs */
.main-content p {
  font-size: 1em;
  color: #444;
  margin-bottom: 16px;
}

/* Optional: center specific sections */
.main-content .center-text {
  text-align: center;
}

/* Spacing between sections */
.main-content section {
  margin-bottom: 40px;
}