body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background-color: #f9f9f9;
    color: #333;
}
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: #008060;
    color: white;
}
header .logo {
    font-size: 1.8rem;
    font-weight: bold;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 1rem;
}
nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}
.hero {
    text-align: center;
    padding: 3rem 1rem;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #008060;
}
.cta {
    padding: 1rem 2rem;
    background-color: #008060;
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    cursor: pointer;
}
.cta:hover {
    background-color: #00664d;
}
.cagnottes {
    padding: 2rem;
}
.cagnotte-list {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.cagnotte-item {
    flex: 1 1 calc(50% - 1rem);
    background: #fff;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.join-btn {
    background-color: #008060;
    color: white;
    border: none;
    padding: 0.8rem 1.2rem;
    border-radius: 20px;
    cursor: pointer;
}
.join-btn:hover {
    background-color: #00664d;
}
.calendar {
    padding: 2rem;
}
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 0.5rem;
}
.day {
    background: #eaeaea;
    padding: 1rem;
    text-align: center;
    border-radius: 8px;
    font-size: 0.9rem;
}
.icon {
    display: block;
    margin-top: 0.5rem;
    font-size: 1rem;
    color: #008060;
}
footer {
    text-align: center;
    padding: 1rem;
    background: #333;
    color: white;
}
@media (max-width: 768px) {
    header {
        flex-direction: column;
        text-align: center;
    }
    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }
    .cagnotte-item {
        flex: 1 1 100%;
    }
}