.sidebar,
.sidebar * {
    font-family: Arial, sans-serif;
}

.sidebar {
    width: 250px;
    height: 100vh;
    background: #3a7d8f;
    color: white;
    position: fixed;
    left: 0;
    top: 0;
    overflow: hidden;
    transition: width 0.3s ease;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 15px;
    background: #2f6b7a;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: default;
    pointer-events: none;
    transition: all 0.3s ease;
}

.logo {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255,255,255,0.3);
    transition: all 0.3s ease;
}

.logo-text {
    font-weight: bold;
    letter-spacing: 1px;
    transition: opacity 0.3s ease 0.25s; /* delayed for stagger effect */
}

.menu {
    list-style: none;
    padding: 10px 0;
}

.menu-title {
    font-size: 12px;
    padding: 10px 20px;
    opacity: 0.6;
    text-transform: uppercase;
    transition: opacity 0.3s ease 0.25s;
}

.menu li a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 20px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease 0.25s;
}

.menu li a:hover {
    background: rgba(255,255,255,0.15);
}

.menu li a.active {
    background: rgba(255,255,255,0.25);
    border-left: 4px solid white;
    font-weight: bold;
    pointer-events: none;
}

.icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
    transition: opacity 0.3s ease;
}

main {
    margin-left: 250px;
    transition: margin-left 0.3s ease;
}

@media (max-width: 768px) {
    .sidebar {
        width: 70px;
    }

    .logo {
        display: block;
        margin: auto;
    }

    .brand {
        cursor: pointer !important;
        pointer-events: auto !important;
    }

    .icon,
    .text,
    .menu-title,
    .logo-text {
        opacity: 0;
        display: inline;
        transition: opacity 0.2s; /* initially hidden, animate later */
    }

    .menu li a {
        justify-content: center;
        padding: 12px 0;
    }

    main {
        margin-left: 70px;
    }

    .sidebar.mobile-open {
        width: 250px;
        z-index: 999;
    }

    .sidebar.mobile-open .icon {
        opacity: 1;
        transition-delay: 0.3s;
    }

    .sidebar.mobile-open .text,
    .sidebar.mobile-open .menu-title,
    .sidebar.mobile-open .logo-text {
        opacity: 1;
        transition-delay: 0.2s; /* text appears after sidebar expands */
    }

    .sidebar.mobile-open .menu-title {
        display: block !important;
        padding: 5px 20px !important;
        margin-bottom: 4px;
        opacity: 0.6;
    }

    .sidebar.mobile-open .menu li a {
        justify-content: flex-start;
        padding: 12px 20px;
    }

    .sidebar:not(.mobile-open) .menu li a {
        pointer-events: none;
        cursor: default;
    }

    .sidebar:not(.mobile-open) .menu li a:hover {
        background: none;
    }

    .sidebar:not(.mobile-open) .menu li a.active {
        background: none !important;
        border-left: none !important;
        font-weight: normal !important;
        transition: opacity 0s;
    }
}