.menu-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 35px;
    height: 25px;
    cursor: pointer;
    z-index: 1001;
}

.menu-btn span {
    display: block;
    height: 3px;
    background: #e5eefc;
    margin: 6px 0;
    transition: 0.3s;
}

.side-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 190px;
    height: 100%;
    background: rgba(0, 10, 30, 0.4);
    backdrop-filter: blur(15px);
    padding-top: 80px;
    padding-right: 18px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    transition: transform 0.4s ease;
    z-index: 1000;
    transform: translateX(100%);
}

.side-menu.active {
    transform: translateX(0);
}

.side-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #e5eefc;
    text-decoration: none;
    font-size: 14px;
    text-align: right;
    position: relative;
    transition: color 0.3s ease;
}

.side-menu a svg {
    flex-shrink: 0;
    opacity: 0.85;
    transition: color 0.3s ease, opacity 0.3s ease;
}

.side-menu a:nth-child(1) svg { color: #e5eefc; }
.side-menu a:nth-child(2) svg { color: #b9eaff; }
.side-menu a:nth-child(3) svg { color: #9edfff; }
.side-menu a:nth-child(4) svg { color: #82d5f5; }
.side-menu a:nth-child(5) svg { color: #c7f1ff; }
.side-menu a:nth-child(6) svg { color: #a9e7ff; }
.side-menu a:nth-child(7) svg { color: #d9f6ff; }
.side-menu a:nth-child(8) svg { color: #8ddcff; }
.side-menu a:nth-child(9) svg { color: #b8ecff; }
.side-menu a:nth-child(10) svg { color: #e5eefc; }

.side-menu a::after {
    content: '';
    position: absolute;
    right: 0;
    bottom: -4px;
    width: 0;
    height: 1px;
    background: #00d2ff;
    transition: 0.3s;
}

.side-menu a:hover::after {
    width: 100%;
}

.side-menu a:hover svg {
    color: #00d2ff;
    opacity: 1;
    filter: drop-shadow(0 0 4px rgba(0, 210, 255, 0.65));
}

@media (max-width: 768px) {
    .side-menu {
        width: 177px;
        padding-top: 60px;
        padding-right: 15px;
        gap: 16px;
    }

    .side-menu a {
        font-size: 14px;
    }

    .side-menu a svg {
        width: 16px;
        height: 16px;
        flex-basis: 16px;
    }

    .menu-btn {
        width: 30px;
        height: 22px;
        top: 15px;
        right: 15px;
    }

    .menu-btn span {
        height: 2px;
        margin: 5px 0;
    }
}