/* Reset général */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Corps de la page */
body {
    font-family: Arial, sans-serif;
    
    background-size: auto;
    background-repeat: repeat;
    background-position: top left;
    background: #EDEDE9;
}

/* En-tête */
.header-top {
    padding: 30px 20px 10px;
    text-align: center;
    background: #e3d5ca;
    color: #4a536b;
}

.header-top h1 {
    margin: 0;
    font-size: 28px;
    color: #4a536b;
}

/* Conteneur principal */
.content {
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px;
    background: #f0e9e0;
    border-radius: 16px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
    color: #2d3142;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.2);
}

/* Titres */
.content h3 {
    font-size: 18px;
    color: #1d3557;
    margin-top: 30px;
    margin-bottom: 15px;
}

.content p {
    font-size: 16px;
    margin-bottom: 20px;
}


/* Cartes des causes */
.activity-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(250px, 1fr)); 
    gap: 70px; 
    margin: 20px auto 30px;
    width: fit-content; 
}


/* Style des cartes */
.activity-card {
    width: 250px;
    background: #f5ebe0;
    border-radius: 12px;
    padding: 15px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    font-weight: bold;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.activity-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
    cursor: pointer;
}

.activity-card img {
    width: 150px;
    height: 150px;
    object-fit: contain;
    border-radius: 50%;
    margin-bottom: 15px;
}

.activity-card p {
    font-size: 16px;
    color: #264653;
    margin: 0;
}

/* Transition pour les paragraphes */
.transition-paragraph {
    font-size: 18px;
    line-height: 1.8;
    color: #2d3142;
    margin-bottom: 20px;
    padding: 20px;
    background-color: #f9f9f9;
    border-left: 6px solid #d5bdaf;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    text-align: justify;
}

.transition-paragraph:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
}

.transition-paragraph strong {
    font-weight: bold;
    color: #1d3557;
}

/* Schéma du rein */
.schema-rein {
    margin-top: 40px;
    text-align: center;
    padding: 20px;
    background-color: #f3f3f3;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
}

.schema-rein h3 {
    font-size: 22px;
    color: #264653;
    margin-bottom: 20px;
}

.img-rein {
    max-width: 70%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.img-rein:hover {
    transform: translateY(-5px); 
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2); 
}


.rein-facts {
    margin-top: 30px;
}


/* Grille des cartes dans la section des fonctions du rein */
.rein-functions {
    text-align: center;
    margin-top: 40px;
}

.rein-functions h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #264653;
}

/* Style des cartes de chaque item */
.activity-card {
    width: 250px; 
    background: #f5ebe0;
    border-radius: 12px;
    padding: 10px 8px 15px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    font-weight: bold;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
}

.activity-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
    cursor: pointer;
}

.activity-card img {
    width: 150px;
    height: 150px;
    object-fit: contain;
    object-fit: cover;
    margin-bottom: 15px;
    border-radius: 10%;
}

.activity-card p {
    font-size: 16px;
    color: #264653;
    margin: 0;
}

/* Couleurs de fond des cartes */
.activity-border-green-lime {
    border: 2px solid #80b918;
    background-color: #f3fae3;
}

.activity-border-blue-electric {
    border: 2px solid #4895ef;
    background-color: #e7f1fe;
}

.activity-border-red-coral {
    border: 2px solid #e63946;
    background-color: #ffecec;
}

.activity-border-purple-bright {
    border: 2px solid #9d4edd;
    background-color: #f3e9fd;
}

.teaser-button {
    display: inline-block;
    font-size: 20px;
    color: #4a536b;
    border: 2px solid #aa8875;
    background-color: #d5bdaf; 
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.teaser-button:hover {
    transform: scale(1.05);  
}