:root { 
    --primary: #2c3e50; 
    --secondary: #27ae60; 
    --light: #ecf0f1; 
    --text: #333; 
    --accent: #3498db; 
}

body { 
    font-family: 'Segoe UI', sans-serif; 
    margin: 0; 
    padding: 0; 
    background-color: var(--light); 
    color: var(--text); 
    line-height: 1.6; 
}

main { 
    max-width: 1100px; 
    margin: 2rem auto; 
    padding: 0 1rem; 
}

h1, h2, h3 { 
    color: var(--primary); 
}

header { 
    background-color: var(--primary); 
    color: white; 
    padding: 1rem 0; 
    text-align: center; 
}

header h1 { 
    color: white; 
    margin: 0; 
}

nav ul { 
    list-style: none; 
    padding: 0; 
    display: flex; 
    justify-content: center; 
    gap: 1rem; 
    flex-wrap: wrap; 
    margin-top: 15px; 
}

nav a { 
    color: white; 
    text-decoration: none; 
    font-weight: bold; 
    padding: 0.6rem 1.2rem; 
    border-radius: 4px; 
    transition: background 0.3s; 
}

nav a:hover, nav a.active { 
    background-color: var(--secondary); 
}

.hero { text-align: center; margin-bottom: 3rem; }
.main-img { width: 100%; max-width: 800px; height: auto; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
.cards, .org-container { display: flex; gap: 2rem; flex-wrap: wrap; justify-content: center; }
.card, .org-card { background: white; padding: 1.5rem; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); flex: 1; min-width: 300px; }
.card img { width: 100%; border-radius: 4px; height: 200px; object-fit: cover; }

table { width: 100%; border-collapse: collapse; margin-top: 1rem; background: white; }
th, td { border: 1px solid #ddd; padding: 12px; text-align: left; }
th { background-color: var(--primary); color: white; }
.charte-box { background: white; padding: 2rem; border-left: 5px solid var(--secondary); box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
.quiz-form { background: white; padding: 2rem; border-radius: 8px; display: flex; flex-direction: column; gap: 1rem; max-width: 500px; margin: 0 auto;}
.quiz-form select { padding: 0.5rem; }
.quiz-form button { background: var(--primary); color: white; border: none; padding: 0.8rem; cursor: pointer; border-radius: 4px;}

.decouverte-intro { 
    text-align: center; 
    margin-bottom: 3rem; 
    background: white; 
    padding: 2rem; 
    border-radius: 8px; 
    box-shadow: 0 2px 4px rgba(0,0,0,0.1); 
}
.full-width-img { 
    width: 100%; 
    height: 300px; 
    object-fit: cover; 
    border-radius: 8px; 
    margin-bottom: 1rem; 
}
.intro-text { 
    font-size: 1.2rem; 
    font-weight: bold; 
    color: var(--accent); 
}
.grid-2-col { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); 
    gap: 1.5rem; 
}
.info-box { 
    background: white; 
    padding: 1.5rem; 
    border-radius: 8px; 
    border-top: 4px solid var(--accent); 
    box-shadow: 0 2px 5px rgba(0,0,0,0.1); 
}
.info-box h3 { 
    margin-top: 0; 
}

.impact-header { 
    background: white; 
    padding: 2rem; 
    border-radius: 8px; 
    margin-bottom: 2rem; 
    overflow: auto; 
    box-shadow: 0 2px 5px rgba(0,0,0,0.1); 
}
.float-img { 
    float: left; 
    margin-right: 20px; 
    margin-bottom: 10px; 
    border-radius: 8px; 
    width: 300px; 
    height: 200px; 
    object-fit: cover; 
}
.impact-sections { 
    display: flex; 
    flex-wrap: wrap; 
    gap: 1.5rem; 
}
.impact-card { 
    background: white; 
    flex: 1; 
    min-width: 300px; 
    padding: 2rem; 
    border-radius: 8px; 
    text-align: center; 
    box-shadow: 0 4px 6px rgba(0,0,0,0.1); 
    transition: transform 0.3s; 
}
.impact-card:hover { 
    transform: translateY(-5px); 
}
.impact-card .icon { 
    font-size: 3rem; 
    margin-bottom: 1rem; 
}
.impact-card h3 { 
    color: var(--secondary); 
    margin-bottom: 1rem; 
}

footer { 
    text-align: center; 
    padding: 1.5rem; 
    background: var(--primary); 
    color: white; 
    margin-top: 3rem; 
}

.ui-btn {
  --btn-default-bg: var(--secondary); 
  --btn-hover-bg: var(--primary); 
  --btn-padding: 10px 20px;
  --btn-transition: .3s;
  --btn-letter-spacing: .1rem;
  --btn-animation-duration: 1.2s;
  --btn-shadow-color: #27ae60;
  --btn-shadow: 0 2px 10px 0 var(--btn-shadow-color);
  --hover-btn-color: #27ae60; 
  --default-btn-color: #fff;
  --font-size: 16px;
  --font-weight: 600;
  --font-family: 'Segoe UI', sans-serif; 
}

.ui-btn {
  box-sizing: border-box;
  padding: var(--btn-padding);
  display: inline-flex; 
  align-items: center;
  justify-content: center;
  color: var(--default-btn-color);
  font: var(--font-weight) var(--font-size) var(--font-family);
  background: var(--btn-default-bg);
  border: none;
  border-radius: 4px; 
  cursor: pointer;
  transition: var(--btn-transition);
  overflow: hidden;
  box-shadow: var(--btn-shadow);
  margin-top: 1rem;
}

.ui-btn span {
  letter-spacing: var(--btn-letter-spacing);
  transition: var(--btn-transition);
  box-sizing: border-box;
  position: relative;
  background: inherit;
}

.ui-btn span::before {
  box-sizing: border-box;
  position: absolute;
  content: "";
  background: inherit;
}

.ui-btn:hover, .ui-btn:focus {
  background-color: white;
}

.ui-btn:hover span, .ui-btn:focus span {
  color: var(--hover-btn-color);
}

.ui-btn:hover span::before, .ui-btn:focus span::before {
  animation: chitchat linear both var(--btn-animation-duration);
}

@keyframes chitchat {
  0% { content: "#"; }
  5% { content: "."; }
  10% { content: "^{"; }
  15% { content: "-!"; }
  20% { content: "#$_"; }
  25% { content: "№:0"; }
  30% { content: "#{+."; }
  35% { content: "@}-?"; }
  40% { content: "?{4@%"; }
  45% { content: "=.,^!"; }
  50% { content: "?2@%"; }
  55% { content: "\;1}]"; }
  60% { content: "?{%:%"; right: 0; }
  65% { content: "|{f[4"; right: 0; }
  70% { content: "{4%0%"; right: 0; }
  75% { content: "'1_0<"; right: 0; }
  80% { content: "{0%"; right: 0; }
  85% { content: "]>'"; right: 0; }
  90% { content: "4"; right: 0; }
  95% { content: "2"; right: 0; }
  100% { content: ""; right: 0; }
}

.logoorga {
    border-radius: 25%;
    width: 300px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.videsytb{
    display: flex;
    justify-content: center; 
    align-items: center;     
    width: 100%;             
    margin: 20px 0;       
}

.comparative-table { 
    width: 100%; 
    border-collapse: collapse; 
    margin-top: 1.5rem; 
    background: white; 
    box-shadow: 0 2px 5px rgba(0,0,0,0.1); 
}
.comparative-table th, .comparative-table td { 
    border: 1px solid #ddd; 
    padding: 15px; 
    text-align: left; 
}
.comparative-table th { 
    background-color: var(--secondary); 
    color: white; 
    font-size: 1.1rem; 
}
.comparative-table tr:nth-child(even) { 
    background-color: #f9f9f9; 
}

.mindmap-container { 
    text-align: center; 
    margin-top: 2rem; 
    background: white; 
    padding: 2rem; 
    border-radius: 8px; 
    box-shadow: 0 2px 5px rgba(0,0,0,0.1); 
}
.mindmap-img { 
    max-width: 100%; 
    height: auto; 
    border-radius: 8px; 
    border: 2px dashed var(--accent); 
    padding: 10px; 
}

.mindmap-container { 
    text-align: center; 
    margin-top: 2rem; 
    background: white; 
    padding: 2rem; 
    border-radius: 12px; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.1); 
    border-top: 5px solid var(--secondary); 
    transition: transform 0.3s ease;
}

.mindmap-container:hover {
    transform: translateY(-5px); 
}

.mermaid {
    display: flex;
    justify-content: center;
    overflow-x: auto; 
    padding: 10px;
}

@media screen and (max-width: 768px) {
    
    main { 
        margin: 1rem auto; 
        padding: 0 15px; 
    }
    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }
    nav a {
        display: block;
        width: 100%;
        box-sizing: border-box;
        text-align: center;
    }

    .org-container {
        flex-direction: column; 
    }
    .org-card {
        width: 100%;
        min-width: 100%; 
        box-sizing: border-box;
        margin-bottom: 1.5rem;
    }

    table {
        display: block; 
        width: 100%;
        overflow-x: auto; 
        -webkit-overflow-scrolling: touch; 
        white-space: nowrap; 
    }

    .charte-box {
        padding: 1rem; 
        border-left-width: 3px; 
    }
    .charte-box ul {
        padding-left: 1rem; 
    }
}