.sidebar {
    width: 250px;
    flex-shrink: 0;
    position: fixed;
    height: 100vh;
    z-index: 1000;
    background: #181818;
}

.sidebar .logo {
    padding: 20px;
    text-align: center;
}

.sidebar .logo img {
    max-width: 150px;
}

.sidebar nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar nav li {
    margin: 5px 0;
}

.sidebar nav a {
    color: #ffffff;
    text-decoration: none;
    display: flex;
    align-items: center;
    padding: 12px 25px;
    transition: background-color 0.3s;
}

.sidebar nav a:hover {
    background-color: #2a2a2a;
}

.sidebar nav a.active {
    background-color: #E51937;
}

.sidebar nav i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

/* Mobile Header Styles */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: #181818;
    padding: 0 20px;
    align-items: center;
    justify-content: space-between;
    z-index: 999;
}

.mobile-header .logo img {
    height: 40px;
}

.hamburger {
    display: none;
    font-size: 24px;
    color: #fff;
    cursor: pointer;
    background: none;
    border: none;
    padding: 10px;
}

/* Mobile Menu Styles */
.mobile-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: #181818;
    padding: 20px;
    z-index: 998;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

.mobile-menu.active {
    transform: translateY(0);
}

.mobile-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-menu li {
    margin: 10px 0;
}

.mobile-menu a {
    color: #ffffff;
    text-decoration: none;
    display: block;
    padding: 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.mobile-menu a:hover {
    background-color: #2a2a2a;
}

.mobile-menu a.active {
    background-color: #E51937;
}

.mobile-menu i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

/* Media Queries */
@media (max-width: 768px) {
    .mobile-header {
        display: flex;
    }

    .hamburger {
        display: block;
    }

    .sidebar {
        display: none;
    }

    .mobile-menu {
        display: block;
    }

    main {
        margin-left: 0;
        width: 100%;
        padding-top: 80px;
    }
}