body {
    font-family: "ZCOOL KuaiLe";
    margin: 0;
    padding: 0;
}

#textbox {
    position: relative;
    left: 15vw;
    top: 5vh;
    font-family: "Sofia", sans-serif;
    font-size: 5.5rem;
    width: 80vw;
    margin-bottom: 6rem;
}

.nav {
    font-size: 4.2vw; /* Changed from 4vw to a stable rem unit */
}

.nav-link {
    color: whitesmoke;
    background-color: #172429;
    border-radius: 50px; /* Use px for consistent rounding */
    padding: 8px 20px;
    margin: 5px;
}

.nav-link:hover, .nav-link.active {
    color: #f1b15e !important;
}

#textbox .name {
    color: brown;
}

#textbox .chinese {
    font-family: "ZCOOL KuaiLe";
}

#profile {
    position: absolute;
    bottom: 0;
    right: 10vw;
    height: 50vh;
}

/* Base Viewport Font Sizes */
.vw-4 { font-size: 3.5rem; }
.vw-5 { font-size: 4rem; }

/* --- MOBILE RESPONSIVE ADJUSTMENTS --- */
@media (max-width: 767px) {
    #textbox {
        font-size: 2.5rem; /* Scale down main title */
        left: 10vw;
        width: 90vw;
        margin-bottom: 6rem;
    }

    .nav {
        font-size: 4vw; /* Smaller nav for mobile */
    }

    .nav-link {
        padding: 5px 12px;
    }

    #profile {
        height: 35vh; /* Scale down character */
        right: 5vw;
    }

    .vw-4 { font-size: 1.2rem; } /* Scale down body text */
    .vw-5 { font-size: 1.5rem; }

    /* Fix table padding for About page */
    .m-5 { margin: 1rem !important; }
}

footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    text-align: center;
    background: rgba(255,255,255,0.);
    padding: 0.5rem 0;
    z-index: 20;
    font-size: 0.4rem;
}

footer .footer-content p {
    margin-bottom: 2px;
}