body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
    overflow: hidden;
}
#map {
    height: 100%;
    width: 100%;
    transition: margin-left 0.3s;
}
.menu-toggle {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 1000;
    background-color: white;
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    cursor: pointer;
}
.hamburger {
    width: 30px;
    height: 3px;
    background-color: #333;
    margin: 6px 0;
    transition: 0.4s;
}
.menu {
    position: absolute;
    top: 0;
    left: -250px;
    width: 250px;
    height: 100%;
    background-color: white;
    overflow-y: auto;
    transition: left 0.3s;
    box-shadow: 2px 0 5px rgba(0,0,0,0.1);
    z-index: 1001;
}
.menu.open {
    left: 0;
}
.menu-close {
    position: absolute;
    top: 10px;
    right: 10px;
    cursor: pointer;
    font-size: 24px;
}
.menu-item {
    padding: 15px;
    border-bottom: 1px solid #eee;
    cursor: pointer;
}
.menu-item:hover {
    background-color: #f0f0f0;
}
.earthquake-item {
    padding: 10px;
    border-bottom: 1px solid #eee;
    cursor: pointer;
}
.earthquake-item:hover {
    background-color: #f0f0f0;
}
@media (min-width: 769px) {
    .menu {
        left: 0;
    }
    #map {
        margin-left: 250px;
        width: calc(100% - 250px);
    }
    .menu-toggle {
        display: none;
    }
    .menu-close {
        display: none;
    }
}
@media (max-width: 768px) {
    .menu {
        left: -100%;
    }
    #map {
        margin-left: 0;
    }
}