/* ========================= */
/* Max-width: 1400px */
/* ========================= */
@media screen and (max-width:1400px) {
    #profile {
        height: 83vh;
        margin-bottom: 6rem;
    }
    .about-containers {
        flex-wrap: wrap;
    }
}

/* ========================= */
/* Max-width: 1200px */
/* ========================= */
@media screen and (max-width:1200px) {
    #desktop-nav {
        display: none;
    }
    #hamburger-nav {
        display: flex;
    }
    #experience,
    .experience-details-container {
        margin-top: 2rem;
    }
    #profile,
    .section-container {
        display: block;
    }
    .arrow {
        display: none;
    }
    section,
    .section-container {
        height: fit-content; /* no fixed vh */
    }
    section {
        margin: 0 5%;
    }
    .section_pic-container {
        width: 275px;
        height: 275px;
        margin: 0 auto 2rem;
    }
    .about-containers {
        margin-top: 0;
    }
}

/* ========================= */
/* Max-width: 600px */
/* ========================= */
@media screen and (max-width:600px) {
    #contact,
    footer {
        height: auto;     /* lets content expand */
    }

    #profile {
        height: auto;     /* remove strict 83vh */
        min-height: 83vh; /* optional baseline spacing */
        margin-bottom: 0;
    }

    article {
        font-size: 1rem;
    }
    footer nav {
        margin-bottom: 2rem;
    }
    .about-containers,
    .btn-container {
        flex-wrap: wrap;
    }
    .contact-info-container {
        margin: 0.1rem; /* fixed invalid 0.1 */
    }
    .contact-info-container p,
    .nav-links li a {
        font-size: 1rem;
    }
    .experience-sub-title {
        font-size: 1.25rem;
    }
    .logo {
        font-size: 1.5rem;
    }
    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    .section_pic-container {
        width: auto;
        height: 40vh;
        justify-content: center;
    }
    .section__text__p2 {
        font-size: 1.25rem;
    }
    .title {
        font-size: 2rem;
    }
    .text-container {
        text-align: justify;
    }
    .contact-info-upper-container {
        flex-direction: column;
        margin-bottom: 4rem;
    }
    .about-containers {
        flex-direction: row-reverse;
        justify-content: space-evenly;
    }
    .nav-links-container {
        margin-top: 2rem
    };
    .project-btn {
        margin-top: 0.5rem;
    }
    footer { /* correct selector (not .footer) */
        margin-bottom: 2rem;
        padding-bottom: 2rem;
    }

    /* Scroll-to-top arrow */
    .a_up {
        position: absolute;
        right: 1rem;
        bottom: 2rem;  /* space above footer */
        font-size: 1.8rem;
        cursor: pointer;
        color: #333;
        z-index: 1000; /* stays on top */
    }
    
    .p2{
        width: 200px;
        box-sizing: border-box;
    }
    .project-title{
        height: 70px;
    }
}

/* ========================= */
/* Max-width: 1400px */
/* ========================= */
@media screen and (max-width:1400px) {
    #profile {
        height: 83vh;
        margin-bottom: 6rem;
    }
    .about-containers {
        flex-wrap: wrap;
    }
}

/* ========================= */
/* Max-width: 1200px */
/* ========================= */
@media screen and (max-width:1200px) {
    #desktop-nav {
        display: none;
    }
    #hamburger-nav {
        display: flex;
    }
    #experience,
    .experience-details-container {
        margin-top: 2rem;
    }
    #profile,
    .section-container {
        display: block;
    }
    .arrow {
        display: none;
    }
    section,
    .section-container {
        height: fit-content; /* no fixed vh */
    }
    section {
        margin: 0 5%;
    }
    .section_pic-container {
        width: 275px;
        height: 275px;
        margin: 0 auto 2rem;
    }
    .about-containers {
        margin-top: 0;
    }
}

/* ========================= */
/* Max-width: 600px */
/* ========================= */
@media screen and (max-width:600px) {
    #contact,
    footer {
        height: auto;     /* lets content expand */
    }

    #profile {
        height: auto;     /* remove strict 83vh */
        min-height: 83vh; /* optional baseline spacing */
        margin-bottom: 0;
    }

    article {
        font-size: 1rem;
    }
    footer nav {
        margin-bottom: 2rem;
    }
    .about-containers,
    .btn-container {
        flex-wrap: wrap;
    }
    .contact-info-container {
        margin: 0.1rem; /* fixed invalid 0.1 */
    }
    .contact-info-container p,
    .nav-links li a {
        font-size: 1rem;
    }
    .experience-sub-title {
        font-size: 1.25rem;
    }
    .logo {
        font-size: 1.5rem;
    }
    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    .section_pic-container {
        width: auto;
        height: 40vh;
        justify-content: center;
    }
    .section__text__p2 {
        font-size: 1.25rem;
    }
    .title {
        font-size: 2rem;
    }
    .text-container {
        text-align: justify;
    }
    .contact-info-upper-container {
        flex-direction: column;
        margin-bottom: 4rem;
    }
    .about-containers {
        flex-direction: row-reverse;
        justify-content: space-evenly;
    }
    .nav-links-container {
        margin-top: 2rem
    };
    .project-btn {
        margin-top: 0.5rem;
    }
    footer { /* correct selector (not .footer) */
        margin-bottom: 2rem;
        padding-bottom: 2rem;
    }

    /* Scroll-to-top arrow */
    .a_up {
        position: absolute;
        right: 1rem;
        bottom: 2rem;  /* space above footer */
        font-size: 1.8rem;
        cursor: pointer;
        color: #333;
        z-index: 1000; /* stays on top */
    }
    
    .p2{
        width: 200px;
        box-sizing: border-box;
    }
    .project-title{
        height: 70px;
    }
}