/* DART Research page. Rules are scoped under .dart-research, except the Avada #main reset. */

@font-face {
    font-family: "D-DIN";
    src: url("/wp-content/uploads/2021/02/D-DIN.woff") format("woff");
    font-display: swap;
}

#main {
    padding-left: 0 !important;
    padding-right: 0 !important;
    padding-bottom: 0 !important;
    margin-bottom: 0 !important;
}

/* On desktop the 88px Avada header overlays #main. */
@media (min-width: 1024px) {
    #main {
        padding-top: 88px !important;
    }
}

.dart-research {
    --rp-bg: #000;
    --rp-line: #303030;
    --rp-line-2: #444;
    --rp-fg: #fff;
    --rp-fg-2: #d2d2d2;
    --rp-fg-3: #9b9b9b;
    --rp-accent: #2fb3a5;

    background: var(--rp-bg);
    color: var(--rp-fg);
    font-family: "D-DIN", "Arial Narrow", Arial, sans-serif;
    font-size: 18px;
    line-height: 1.45;
    width: 100%;
}

.dart-research *,
.dart-research *::before,
.dart-research *::after {
    box-sizing: border-box;
}

.dart-research a {
    color: inherit;
}

.dart-research a:hover,
.dart-research a:focus-visible {
    color: var(--rp-accent);
}

.dart-research :focus-visible {
    outline: 2px solid var(--rp-accent);
    outline-offset: 2px;
}

.dart-research .rp-wrap {
    margin: 0 auto;
    max-width: 1200px;
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
}

.dart-research h1,
.dart-research h2 {
    border-bottom: 2px solid var(--rp-accent);
    color: var(--rp-fg) !important;
    display: inline-block;
    font-family: inherit !important;
    letter-spacing: .04em;
    margin: 0;
    text-transform: uppercase;
}

.dart-research h1 {
    display: table;
    font-size: 40px !important;
    font-weight: 700;
    margin: 24px auto 34px;
    padding: 0 10px 4px;
}

.dart-research h2 {
    font-size: 32px !important;
    font-weight: 400;
    letter-spacing: 0;
    line-height: 1.25 !important;
    margin-bottom: 26px;
    padding-bottom: 8px;
}

.dart-research h3 {
    color: var(--rp-fg) !important;
    font-family: inherit !important;
    font-size: 23px !important;
    font-weight: 400;
    margin: 0 0 14px;
    text-transform: uppercase;
}

/* Introduction and area index */

.dart-research .rp-hero {
    padding-block: 24px 40px;
    text-align: center;
}

.dart-research .rp-intro {
    color: #eee;
    margin: 0 auto 45px;
    max-width: 1090px;
}

.dart-research .rp-index {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.dart-research .rp-index a {
    border-right: 1px solid var(--rp-line-2);
    padding: 22px 20px;
    text-decoration: none;
}

.dart-research .rp-index a:last-child {
    border-right: 0;
}

.dart-research .rp-index strong {
    border-bottom: 2px solid var(--rp-accent);
    display: inline-block;
    font-size: 23px;
    font-weight: 400;
    line-height: 1.25;
    padding-bottom: 9px;
    text-transform: uppercase;
}

.dart-research .rp-index small {
    color: #ccc;
    display: block;
    font-size: 16px;
    margin-top: 14px;
}

.dart-research .rp-index small.rp-n {
    color: var(--rp-accent);
    font-variant-numeric: tabular-nums;
    margin-top: 6px;
}

/* Research areas */

.dart-research .rp-area {
    border-top: 1px solid var(--rp-line);
    padding-block: 65px;
    scroll-margin-top: 12px;
}

.dart-research .rp-layout {
    align-items: start;
    display: grid;
    gap: 65px;
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
}

.dart-research .rp-area p {
    color: #eee;
    margin: 0 0 25px;
}

.dart-research .rp-topics {
    margin: 25px 0;
    padding: 0 0 0 20px;
}

.dart-research .rp-topics li {
    margin: 0 0 18px;
    padding-left: 5px;
}

.dart-research .rp-topics li::marker {
    color: var(--rp-accent);
}

.dart-research .rp-topics strong {
    display: block;
    font-size: 20px;
    font-weight: 400;
}

.dart-research .rp-topics span {
    color: #ccc;
    display: block;
    font-size: 17px;
    line-height: 1.4;
}

.dart-research .rp-area p.rp-detail {
    color: #ccc;
    font-size: 16px;
    line-height: 1.4;
    margin-top: 27px;
}

.dart-research .rp-area p.rp-detail a {
    color: var(--rp-accent);
}

.dart-research .rp-ranges {
    list-style: none;
    margin: 0 0 25px;
    padding: 0;
}

.dart-research .rp-ranges li {
    border-bottom: 1px solid #333;
    display: flex;
    font-size: 17px;
    gap: 22px;
    padding-block: 12px;
}

.dart-research .rp-ranges b {
    color: var(--rp-accent);
    font-weight: 400;
    min-width: 82px;
}

/* Media */

.dart-research .rp-media {
    margin: 0;
}

.dart-research .rp-media img,
.dart-research .rp-media video {
    background: var(--rp-bg);
    display: block;
    height: auto;
    max-height: 430px;
    max-width: 100%;
    object-fit: contain;
    width: 100%;
}

.dart-research .rp-media figcaption {
    color: #bbb;
    font-size: 15px;
    line-height: 1.4;
    margin-top: 15px;
}

.dart-research .rp-credit {
    color: var(--rp-fg-3);
    display: block;
    font-size: 13px;
    margin-top: 4px;
}

.dart-research #rp-astrodynamics .rp-side {
    align-self: center;
    text-align: center;
}

.dart-research #rp-astrodynamics .rp-media img {
    max-height: none;
}

.dart-research #rp-digital-physical-twins .rp-media img {
    aspect-ratio: 4 / 3;
    max-height: none;
    object-fit: cover;
}

.dart-research .rp-more-media {
    margin-top: 25px;
}

.dart-research .rp-more-media summary {
    color: var(--rp-accent);
    cursor: pointer;
    font-size: 17px;
}

.dart-research .rp-more-media .rp-media {
    margin-top: 20px;
}

/* Selected papers and related projects */

.dart-research .rp-linked {
    border-top: 1px solid var(--rp-line);
    display: grid;
    gap: 40px;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    margin-top: 45px;
    padding-top: 28px;
}

.dart-research .rp-linked h3 {
    color: var(--rp-fg-3) !important;
    font-size: 14px !important;
    letter-spacing: .08em;
    margin-bottom: 8px;
}

.dart-research .rp-papers {
    list-style: none;
    margin: 0;
    padding: 0;
}

.dart-research .rp-papers li {
    border-bottom: 1px solid var(--rp-line);
    font-size: 17px;
    line-height: 1.3;
    padding-block: 10px;
}

.dart-research .rp-papers a {
    text-decoration: none;
}

.dart-research .rp-papers span {
    color: var(--rp-fg-3);
    display: block;
    font-size: 14px;
    margin-top: 3px;
}

.dart-research p.rp-all {
    display: flex;
    flex-wrap: wrap;
    font-size: 16px;
    gap: 6px 20px;
    margin: 14px 0 0;
}

.dart-research .rp-all a {
    color: var(--rp-accent);
}

.dart-research .rp-projects {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.dart-research .rp-projects a {
    border: 1px solid var(--rp-line-2);
    color: var(--rp-fg-2);
    font-size: 15px;
    padding: 4px 10px;
    text-decoration: none;
}

/* Operations and closing links */

.dart-research .rp-operations {
    border-top: 1px solid #333;
    padding-block: 60px;
}

.dart-research .rp-operations h2 {
    font-size: 27px !important;
}

.dart-research .rp-operations-grid {
    display: grid;
    gap: 65px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.dart-research .rp-operations-grid p {
    color: #ccc;
    font-size: 17px;
}

.dart-research .rp-foot {
    border-top: 1px solid var(--rp-line);
    padding-block: 40px 22px;
    text-align: center;
}

.dart-research .rp-foot h2 {
    font-size: 20px !important;
    margin-bottom: 30px;
    padding-bottom: 4px;
}

.dart-research .rp-foot nav {
    display: flex;
    flex-wrap: wrap;
    font-size: 17px;
    gap: 12px 12vw;
    justify-content: center;
    text-transform: uppercase;
}

.dart-research .rp-foot nav a {
    text-decoration: none;
}

@media (max-width: 760px) {
    .dart-research h1 {
        font-size: 32px !important;
    }

    .dart-research h2 {
        font-size: 27px !important;
    }

    .dart-research .rp-layout,
    .dart-research .rp-linked,
    .dart-research .rp-operations-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .dart-research .rp-layout,
    .dart-research .rp-operations-grid {
        gap: 30px;
    }

    .dart-research .rp-index {
        gap: 16px 0;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .dart-research .rp-index a:nth-child(2) {
        border-right: 0;
    }

    .dart-research .rp-index strong {
        font-size: 19px;
    }

    .dart-research .rp-area {
        padding-block: 45px;
    }
}