:root {
  --pn-yellow: #FFC72C;
  --pn-yellow-dark: #E6AC00;
  --pn-black: #111111;
  --pn-dark: #1d1d1d;
  --pn-green: #2e7d32;
  --pn-green-bg: #eaf6ea;
  --pn-orange: #d9480f;
  --pn-orange-bg: #fff3e0;
}

body {
  font-family: 'Nunito', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #222;
  background: #fffdf7;
}

h1, h2, h3, h4 {
  font-weight: 800;
}

/* --- Top bar (mobile) --- */
.pn-topbar {
  background: var(--pn-black);
  border-bottom: 4px solid var(--pn-yellow);
}
.pn-topbar .navbar-brand {
  color: var(--pn-yellow);
  font-weight: 900;
  font-size: 1.1rem;
}
.pn-topbar .btn-toggle {
  color: var(--pn-yellow);
  border-color: var(--pn-yellow);
}

/* --- Sidebar --- */
.pn-sidebar {
  background: var(--pn-black);
  min-height: 100vh;
  color: #eee;
  padding: 2rem 0 2rem 0;
}
.pn-sidebar .pn-logo {
  color: var(--pn-yellow);
  font-weight: 900;
  font-size: 1.3rem;
  line-height: 1.2;
  padding: 0 1.25rem 1.5rem 1.25rem;
  border-bottom: 3px solid var(--pn-yellow);
  margin-bottom: 1rem;
}
.pn-sidebar .pn-logo small {
  display: block;
  color: #ccc;
  font-weight: 600;
  font-size: 0.75rem;
  margin-top: 0.25rem;
}
.pn-chapter-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.pn-chapter-list li a {
  display: block;
  padding: 0.55rem 1.25rem;
  color: #eee;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.92rem;
  border-left: 4px solid transparent;
  transition: background 0.15s ease;
}
.pn-chapter-list li a:hover {
  background: rgba(255, 199, 44, 0.12);
}
.pn-chapter-list li a.active {
  background: var(--pn-yellow);
  color: var(--pn-black);
  border-left-color: var(--pn-black);
}
.pn-chapter-list li span.pn-disabled {
  display: block;
  padding: 0.55rem 1.25rem;
  color: #777;
  font-weight: 700;
  font-size: 0.92rem;
  border-left: 4px solid transparent;
  cursor: default;
}
.pn-badge-soon {
  display: inline-block;
  background: #444;
  color: #ccc;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: 0.75rem;
  margin-left: 0.4rem;
  vertical-align: middle;
}

/* --- Main content --- */
.pn-main {
  padding: 2.5rem clamp(1rem, 5vw, 4rem);
  max-width: 900px;
}
.pn-chapter-kicker {
  color: var(--pn-yellow-dark);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
}
.pn-chapter-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 0.25rem;
}
.pn-chapter-subtitle {
  color: #555;
  font-style: italic;
  margin-bottom: 2rem;
}

.pn-illustration {
  background: #fff;
  border: 3px solid var(--pn-black);
  border-radius: 12px;
  padding: 1rem;
  margin: 1.5rem 0;
  box-shadow: 6px 6px 0 var(--pn-yellow);
}
.pn-illustration img { width: 100%; height: auto; display: block; }
.pn-illustration figcaption {
  text-align: center;
  font-size: 0.9rem;
  color: #666;
  margin-top: 0.5rem;
}

.pn-legend {
  list-style: none;
  padding: 0;
  margin: 1rem 0 2rem 0;
}
.pn-legend li {
  display: flex;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px dashed #ddd;
}
.pn-legend .num {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--pn-yellow);
  border: 2.5px solid var(--pn-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
}
.pn-legend strong { display: block; }

/* --- Encadrés --- */
.pn-box {
  border-radius: 10px;
  padding: 1.1rem 1.3rem;
  margin: 1.5rem 0;
  border-left-width: 6px;
  border-left-style: solid;
}
.pn-box-title {
  font-weight: 900;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.pn-box-astuce {
  background: var(--pn-green-bg);
  border-left-color: var(--pn-green);
}
.pn-box-astuce .pn-box-title { color: var(--pn-green); }
.pn-box-attention {
  background: var(--pn-orange-bg);
  border-left-color: var(--pn-orange);
}
.pn-box-attention .pn-box-title { color: var(--pn-orange); }

.pn-mascot-quote {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: #fff;
  border: 2px solid #eee;
  border-radius: 12px;
  padding: 1rem;
  margin: 1.5rem 0;
}
.pn-mascot-quote img { width: 70px; flex: 0 0 auto; }
.pn-mascot-quote p { margin: 0; font-style: italic; }

.pn-recap {
  background: var(--pn-black);
  color: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  margin: 2rem 0;
}
.pn-recap h4 { color: var(--pn-yellow); }
.pn-recap ul { margin-bottom: 0; }

.pn-quiz .accordion-button {
  font-weight: 700;
}
.pn-quiz .accordion-button:not(.collapsed) {
  background-color: var(--pn-yellow);
  color: var(--pn-black);
}

.pn-teaser {
  border: 2px dashed var(--pn-black);
  border-radius: 12px;
  padding: 1.25rem;
  margin-top: 2rem;
  text-align: center;
}
.pn-teaser strong { color: var(--pn-yellow-dark); }

.pn-table {
  width: 100%;
}
.pn-table th {
  background: var(--pn-black);
  color: var(--pn-yellow);
}