* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Side Menu Styles */
.side-menu {
    width: 250px;
    height: 100vh;
    background-color: #2c3e50;
    color: white;
    position: fixed;
    left: -250px; /* Hidden by default */
    top: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.2);
    transition: left 0.3s ease; /* Smooth sliding effect */
    overflow-x: auto; /* Horizontal scrolling */
    overflow-y: auto; /* Vertical scrolling */
}

.side-menu.open {
    left: 0; /* Slide in when open */
}

.menu-header {
    padding: 20px;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    background-color: #1a252f;
}

.menu-list {
    list-style: none;
    padding: 20px 0;
    flex-grow: 1; /* Allow this section to grow and accommodate vertical scrolling */
}

.menu-list li {
    padding: 15px 20px;
    border-bottom: 1px solid #34495e;
    transition: background-color 0.3s ease;
    position: relative; /* Add relative positioning for submenu */
}

.menu-list li:hover {
    background-color: #34495e;
}

.menu-list li a {
    text-decoration: none;
    color: white;
    font-size: 16px;
    display: block;
    white-space: nowrap; /* Prevent long text from wrapping and trigger horizontal scrolling */
}

.menu-footer {
    padding: 15px 20px;
    text-align: center;
    background-color: #1a252f;
}

.menu-footer a {
    color: white;
    text-decoration: none;
    font-size: 14px;
}

/* Submenu Styles */
.submenu {
    list-style: none;
    padding-left: 20px;
    display: none; /* Hide submenu by default */
    background-color: #34495e;
}

.submenu li {
    padding: 10px 0;
}

.submenu-link {
    font-size: 14px;
}

/* Show submenu on hover */
.menu-item:hover .submenu {
    display: block; /* Display submenu when menu item is hovered */
}

/* Toggle Button Styles */
.toggle-btn {
    position: absolute;
    top: 20px;
    left: 10px;
    background-color: #34495e;
    width: 30px;
    height: 30px;
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-size: 20px;
    z-index: 1000;
}

/* Content Section Styles */
.content {
    margin-left: 0;
    padding: 20px;
    width: 100%;
    background-color: #ecf0f1;
    transition: margin-left 0.3s ease;
    overflow-x: auto; /* Horizontal scrolling for content */
    overflow-y: auto; /* Vertical scrolling for content */
}

.content.shifted {
    margin-left: 250px; /* Content shifts when menu is open */
}

.content h1 {
    font-size: 30px;
    margin-bottom: 20px;
}

.content p {
    font-size: 18px;
    color: #2c3e50;
    white-space: nowrap; /* Ensure long text does not wrap and allows horizontal scrolling */
}

/* Media Queries for Responsiveness */
@media screen and (max-width: 768px) {
    .side-menu {
        width: 200px;
        left: -200px; /* Adjust menu width for smaller screens */
    }

    .side-menu.open {
        left: 0;
    }

    .content.shifted {
        margin-left: 200px;
    }

    .menu-header, .menu-footer {
        font-size: 20px;
    }

    .menu-list li {
        font-size: 14px;
    }
}

@media screen and (max-width: 480px) {
    .side-menu {
        width: 180px;
        left: -180px; /* Adjust menu width for mobile screens */
    }

    .side-menu.open {
        left: 0;
    }

    .content.shifted {
        margin-left: 180px;
    }

    .menu-header, .menu-footer {
        font-size: 18px;
    }

    .menu-list li {
        font-size: 12px;
    }
}

@media screen and (max-width: 360px) {
    .side-menu {
        width: 150px;
        left: -150px; /* Further adjust menu width for smaller mobile screens */
    }

    .side-menu.open {
        left: 0;
    }

    .content.shifted {
        margin-left: 150px;
    }

    .menu-header, .menu-footer {
        font-size: 16px;
    }

    .menu-list li {
        font-size: 10px;
    }
}