body {
    margin: 0;
    font-family: Arial, "Hiragino Kaku Gothic ProN";
    background: #f8f8f8;
    color: #333;
}

header {
    background: #2c5f2d;
    color: white;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 20px;
    margin: 0;
}

nav a {
    color: white;
    margin-left: 15px;
    text-decoration: none;
}

.container {
    max-width: 1000px;
    margin: auto;
    padding: 40px 20px;
}

h2 {
    color: #2c5f2d;
}

.card {
    background: white;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.1);
}

footer {
    text-align: center;
    padding: 20px;
    background: #2c5f2d;
    color: white;
}