/* CUSTOM PROPERTIES */
:root {
    --gradient-theme-start: #2b3c57dd;
    --gradient-theme-end: #324891be;

    --text-theme-link: #2e438d; /*#4267b2*/ /*#7878FF*/;
  }
/* END CUSTOM PROPERTIES */

/* GLOBAL */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
}

html {
    font-size: 10px;
    font-family: 'Source Code Pro', monospace;
    color: #222;
}

body {
    width: 100%;
    height: 100%;
    background-color: #EEE !important; /* Prevents white flash on page change. */
    /*background: url("sitebg.jpg") no-repeat center fixed;*/
    background-size: cover;
}

section {
    padding: 6rem 0;
}

a {
    text-decoration: none;
    color: #eee;
}

p {
    font-size: 1.8rem;
    font-weight: 300;
}

img {
    width: 100%;
}

.global-link a {
    text-decoration: none;
    color: var(--text-theme-link);
}

.global-link :hover {
    text-decoration: underline;
	text-decoration-color: var(--text-theme-link);
    -webkit-text-decoration-color: var(--text-theme-link);
    text-decoration-thickness: 0.12em;
    -webkit-text-decoration-thickness: 0.12em;
    color: var(--text-theme-link);
}

.temp-text-link {
    color: var(--text-theme-link);
}

.temp-text-link :hover {
    text-decoration: underline;
	text-decoration-color: var(--text-theme-link);
    -webkit-text-decoration-color: var(--text-theme-link);
    text-decoration-thickness: 0.12em;
    -webkit-text-decoration-thickness: 0.12em;
    color: var(--text-theme-link);
}
/* END GLOBAL */

/* REUSABLE */
.container {
    width: 90%;
    max-width: 120rem;
    height: 100%;
    margin: 0 auto;
    position: relative;
}

.section-heading {
    text-align: center;
    margin-bottom: 3.5rem /* 6.5rem; */
}

.section-heading h1 {
    font-size: 3.5rem;
    color: rgba(0, 0, 0, 0.7);
    text-transform: uppercase;
    font-weight: 300;
    position: relative;
    margin-bottom: 1rem;
}

.section-heading h1::before,
.section-heading h1::after {
    content: '';
    position: absolute;
    bottom: -.5rem;
    left: 50%;
    transform: translate(-50%);
    background-color: rgba(0, 0, 0, .75);
}

/*.section-heading h1::before {
    width: 10rem;
    height: 3px;
    border-radius: .8rem;
}

.section-heading h1::after {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 100%;
    bottom: -1rem;
}*/

.section-heading h6 {
    font-size: 1.6rem;
    font-weight: 300;
}

.has-margin-right {
    margin-right: 5rem;
}
/* END REUSABLE */

/* HEADER */
header {
    width: 100%;
    height: 25vh; /*100vh;*/
}

.top-nav {
    width: 100%;
    height: 6.5vh;
    position: fixed;
    z-index: 50;
    background-color: rgba(5, 10, 20, 0.975);
    display: flex;
    justify-content: center; /* center nav-content horizontally */
    align-items: center;
    transition: all 650ms cubic-bezier(1, 0, 0, 1);
}

.nav-content {
    width: 100%;
    max-width: 1200px; /* adjust as needed */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem; /* inset from edges */
}

.nav-content h1 {
    font-size: 13rem;
    font-family: 'Source Code Pro', monospace;
    background: linear-gradient(to top, var(--gradient-theme-start), var(--gradient-theme-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    padding: 1rem;
}

.nav-content h6 {
    font-size: 2rem;
    font-weight: 300;
    padding: 1rem;
}

.nav-list {
    list-style: none;
    display: flex;
    align-items: center;
    margin: 0;
}

li {
    margin: 0 2rem;
}

.nav-link {
    font-family: 'Source Code Pro', monospace;
    font-size: 2rem;
    padding: 1rem;
}

.nav-link:hover /*, .nav-link:focus*/ {
    background: var(--text-theme-link);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.top-nav.open {
    top: 0;
    border-radius: initial;
}

.menu-toggler {
    position: absolute;
    top: 5rem;
    right: 5rem;
    width: 5rem;
    height: 4rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
    z-index: 1500;
    transform: transform 650ms ease out;
}

.menu-toggler.open {
    transform: rotate(-45deg);
}

.bar {
    background: linear-gradient(to right, var(--gradient-theme-start), var(--gradient-theme-end));
    width: 100%;
    height: 4px;
    border-radius: .8rem;
}

.bar.half {
    width: 50%;
}

.bar.start {
    transform-origin: right;
    transition: transform 650ms cubic-bezier(0.54, -0.81, 0.57, 0.57);
}

.open .bar.start {
    transform: rotate(-450deg) translate(.8rem);
}

.bar.end {
    align-self: flex-end;
    transform-origin: left;
    transition: transform 650ms cubic-bezier(0.54, -0.81, 0.57, 0.57);
}

.open .bar.end {
    transform: rotate(-450deg) translate(-.8rem);
}

.landing-text {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    text-align: center;
    z-index: 1;
}

.landing-text h1 {
    font-size: 3.2rem;
    font-family: 'Source Code Pro', monospace;
    background: linear-gradient(to top, var(--gradient-theme-start), var(--gradient-theme-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    padding: 1rem;
    user-select: none;
}

.landing-text h6 {
    font-size: 2rem;
    font-weight: 300;
}
/* END HEADER */

.separator-line {
    margin: auto;
    width: 80%;
    border-bottom: 1px solid rgba(0, 0, 0, 0.85);
    margin-bottom: 1rem;
    padding-bottom: 1rem;
}

/* ABOUT */
.about .container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 25px; /* NEW */
}

.about-heading {
    text-align: center;
    /*text-transform: uppercase;*/
    /*line-height: 0;*/
    margin-bottom: 3rem;
}

.about-heading h1 {
    font-size: 4rem;
    opacity: .3;
}

.about-heading h6 {
    font-size: 1.5rem;
    font-weight: 300;
}

.about-details p {
    color: #192124;
    font-size: 13.5px;
    line-height: 2.8rem;
    text-align: center;
}

.about-details p strong {
    color: #151e2b;
}

.profile-img {
    flex: 1;
    margin-right: 5rem;
    align-content: center;
}

.profile-img img {
    width: 133px;
    height: auto;
    display: block;
    margin: auto;
    border-radius: 15px;
}

.about-details {
    flex: 1;
}

.about-intro h1
{
    font-size: 50px;
    margin: 28px 0px;
    font-weight: lighter;
}

.about-intro h2
{
    font-size: 24px;
    margin: 19.92px 0px;
    font-weight: lighter;
}

.about-intro p
{
    font-size: 16.8px;
    margin: 24px 0px;
    font-weight: lighter;
}

.social-media {
    margin-top: 5rem;
}

.social-media i {
    font-size: 5rem;
    transition: color 650ms;
}

/*.fa-github:hover {
    color: var(--text-theme-link);
}*/

.footer-icon {
    margin-left: 2px;
    margin-right: 2px;
}

.footer-icon:hover {
    color: var(--text-theme-link);
}

.about-list .list-heading {
    color: #1d2529;
    line-height: 3.5rem;
}

.about-list .list-info {
    color: #272a2c;
    line-height: 2.5rem;
    font-size: 135%;
    font-weight: 105%;
}

.about-list ul {
    color: #333638;
    line-height: 2.25rem;
    font-size: 120%;
    padding-left: 10px;
}
/* END ABOUT */

/* SERVICES */
.my-skills {
    margin-top: 0px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(25rem, 1fr));
    grid-gap: 2.5rem;
    text-align: center;
}

.skill {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.skill h1 {
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 2rem -2px 2rem 0;
    color:#111;
}

.about-details .my-skills .skill h1 {
    text-decoration: underline;
}

.about-details .my-skills .skill h1:hover {
    color: var(--text-theme-link);
}

.skill p {
    font-size: 1.25rem;
    line-height: 2rem;
    color: #567294;
}

.icon-container {
    width: 6.5rem;
    height: 6.5rem;
    border: 3px solid var(--gradient-theme-start);
    background-color: var(--gradient-theme-end);
    margin-bottom: 2rem;
    display: flex;
    transform: rotate(45deg);
}

.icon-container {
    color: var(--gradient-theme-start);
    font-size: 5rem;
    margin: auto;
}

.icon-container i {
    color: #1d7986;
    font-size: 3.5rem;
    margin: auto;
    transform: rotate(-45deg);
}
/* END SERVICES */

/* PORTFOLIO */
.portfolio-item {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2.5rem;
    margin-bottom: 2.5rem;
}

.portfolio-item:last-child {
    margin-bottom: 0;
}

.portfolio-img {
    flex: 0.5;
}

.portfolio-img img {
    transition: transform 0.3s ease;
}

.portfolio-img img:hover {
    transform: scale(1.065);
}

.portfolio-description {
    flex: 1;
}

.portfolio-description h1 {
    font-size: 2rem;
    font-weight: 300;
    text-transform: uppercase;
    margin: 1rem 0;
}

.portfolio-description h5 {
    font-size: 1.45rem;
    font-weight: 300;
    margin-left: auto;
    text-align: right;
    color: #5f6e86;
}

.portfolio-description h6 {
    font-size: 1.45rem;
    font-weight: 300;
    color: #64748d;
}

.portfolio-description p {
    font-size: 1.25rem;
    line-height: 1.8rem;
    color: #606f88;
}

.portfolio-description .cta {
    display: inline-block;
    margin-top: 2.5rem;
    font-size: 1.33rem;
    color: #616f86;
    transition: color 650ms;
}

.portfolio-description .cta a {
    text-decoration: none;
    color: var(--text-theme-link);
    font-size: 1.55rem;
}

.portfolio-description .cta a :hover {
    text-decoration: underline;
	text-decoration-color: var(--text-theme-link);
    -webkit-text-decoration-color: var(--text-theme-link);
    text-decoration-thickness: 0.12em;
    -webkit-text-decoration-thickness: 0.12em;
    color: var(--text-theme-link);
}

.job-title {
    display: flex;
    justify-content: space-between;
    width: 100%;
}

.align-right {
    margin-left: auto;
    text-align: right;
}

/*
.portfolio-description .cta:hover {
    color: #2f67cd;
}
*/

.portfolio-item .project-link {
    color: #222;
    margin: 0 1rem;
}

.project-link {
    font-size: 3rem;
}

.project-link:hover {
    font-size: 3rem;
    color: #535e8188 !important;
    transition: color 112ms;
}

.project-buttons {
    text-align: center;
    padding-bottom: 40px;
}

.project-buttons button {
    background-color: #577efd88;
    color: rgba(255, 255, 255, .7);
    border: none;
    border-radius: 12px;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
}

.project-buttons :hover {
    cursor: pointer;
    background-color: #577efd88 !important;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    margin: 0 auto;
}

.filter-buttons .nav-link {
    text-decoration: underline;
    font-size: 1.75rem;
}

.filter-buttons:hover {
    text-decoration: underline;
}

/* END PORTFOLIO */

/* EXPERIENCE / TIMELINE */
.timeline ul {
    border-left: 4px solid var(--gradient-theme-start);
    border-radius: .8rem;
    background-color: rgba(0, 0, 0, 0.0);
    margin: 0 auto;
    position: relative;
    padding: 5rem;
    list-style: none;
    text-align: left;
    width: 70%;
}

.timeline h1 {
    font-size: 2rem;
    text-transform: uppercase;
    font-weight: 300;
    margin-bottom: 1rem;
    opacity: .3;
}

.timeline .date {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    position: relative;
}

.timeline .date:last-of-type {
    padding-bottom: 0;
    margin-bottom: 0;
    border: none;
}

.timeline .date::before,
.timeline .date::after {
    position: absolute;
    display: block;
    top: 50%;
    transform: translateY(-50%);
}

.timeline .date::before {
    content: attr(data-date);
    left: -21rem;
    text-align: right;
    min-width: 12rem;
    font-size: 1.5rem;
}

.timeline .date::after {
    content: '';
    box-shadow: 0 0 0 4px var(--gradient-theme-end);
    border-radius: 100%;
    left: -8rem;
    height: 1.5rem;
    width: 1.5rem;
    background-color: #313534;
}

.timeline-job-spec {
    color: rgba(255,255,255, 0.3);
}

.experience .container p {
    display: inline;
}
/* END TIMELINE */

/* CONTACT */
/*
.contact {
}
*/
.contact .container p {
    font-size: 2.25rem;
    text-align: center;
    color: var(--gradient-theme-start);
}

.contact-icons {
    width: 12px;
    margin: 0 auto;
}

.mail-icon i {
    font-size: 5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 325ms; /*650ms;*/
}

.mail-icon:hover i {
    color: var(--text-theme-link);
}

.form {
    width: 70%;
    margin: 0 auto;
}

.form label {
    font-size: 1.5rem;
}

input,
select,
textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 5px;
    border: none;
    outline-color: var(--gradient-theme-start);
}

input[type="submit"] {
    width: initial;
    background-color: var(--gradient-theme-start);
    color: #eee;
    padding: 1rem 2rem;
    border-radius: .8rem;
    cursor: pointer;
    transition: background-color 650ms;
}

input[type="submit"]:hover {
    color: #221e3f;
    background-color: var(--gradient-theme-end);
}

#contact-p-number {
    user-select: text;
}

.contact-img {
    align-content: center;
}

.contact-img img {
    width: 20%;
    height: auto;
    display: block;
    margin: auto;
}

/* END CONTACT */

/* FOOTER */
.copyright {
    width: 100%;
    text-align: center;
    padding: 2rem 0;
    position: relative;
}

.up {
    position: absolute;
    width: 5rem;
    height: 5rem;
    background-color: #222;
    top: -2.5rem;
    right: 5rem;
    border-radius: 100%;
    display: flex;
    animation: pulse 2s infinite;
    cursor: pointer;
}

.up i {
    color: #e0e0e0;
    font-size: 2rem;
    margin: auto;
}

.copyright p {
    font-size: 1.2rem;
}
/* END FOOTER */

/* ANIMATIONS */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(87, 191, 253, 0.99);
    }
    70% {        
        box-shadow: 0 0 0 2rem rgba(87, 191, 253, 0);
    }
    100% {        
        box-shadow: 0 0 0 0 rgba(87, 191, 253, 0);
    }
}
/* END ANIMATIONS */

/* MEDIA QUERIES */
@media screen and (max-width: 768px) {
    body {
        /*background: url("sitebg.jpg") no-repeat center fixed;*/
        background-size: cover;
    }

    .landing-text h1 {
        /*font-size: 15rem;*/
    }

    .landing-text h6 {
        /*font-size: 1.7rem;*/
    }

    .top-nav {
        height: auto; /* ⬅️ allow nav to expand */
        padding: 0rem 0;
    }

    .nav-list {
        /*flex-direction: column;*/
        gap: 1rem;
    }

    .nav-content {
        flex-direction: column;
        align-items: center;
    }

    li {
        margin: 2rem 0;
    }

    .nav-link {
        font-size: 1.5rem;
        padding: 0.5rem 0;
    }

    .brand {
        justify-content: center;
    }

    .about-heading h1 {
        font-size: 6.5rem;
    }

    .section-heading h1 {
        /*font-size: 3rem;*/
    }

    .about-details .nav-list {
        flex-direction: initial;
    }

    .about-details li {
        margin: 0 2rem;
    }

    .icon-container {
        width: 7rem;
        height: 7rem;
    }

    .icon-container i {
        /*font-size: 4rem;*/
    }

    .timeline ul {
        margin: 0 0 0 auto;
    }

    .timeline .date::before {
        left: -20rem;
    }

    .timeline .date::after {
        left: -5.9rem;
    }

    .contact-img img {
        width: 35%;
    }

    #nav-research {
        display: block;
    }
}

@media screen and (max-width: 600px) {
    .menu-toggler {
        top: 2rem;
        right: 2rem;
    }

    .landing-text h1 {
        /*font-size: 8rem;*/
    }

    .landing-text h6 {
        /*font-size: 1.4rem;*/
    }

    .separator-line {
        margin-bottom: 3rem;
        padding-bottom: 3rem;
    }

    .about .container {
        flex-direction: column;
    }

    .profile-img {
        margin: 0 0 7rem 0;
    }

    .portfolio-item {
        flex-direction: column;
    }

    .portfolio-img {
        margin: 0 0 2rem 0;
        order: 1;
    }

    .portfolio-description {
        margin: 0;
        order: 2;
    }

    .timeline ul {
        /*font-size: 1.6rem;*/
    }

    .timeline .date::before {
        /*font-size 1.4rem;*/
    }

    form {
        width: 100%;
    }

    .up {
        right: 2rem;
    }

    .contact-img img {
        width: 50%;
    }

    #nav-research {
        display: none;
    }
}
/* END MEDIA QUERIES */