/* AI Research & Development Cell (AIRDC) — scoped to .airdc
   Palette follows the BWU brand: royal blue + navy, with the site's orange as a small accent */
.airdc, .airdc-menu, .airdc-panel, .airdc-banner {
    --ai-navy: #0a2463;
    --ai-blue: #0f3db8;
    --ai-blue-mid: #1d5bc9;
    --ai-orange: #f77a10;
    --ai-ink: #0f1e46;
    --ai-muted: #4a5568;
    --ai-line: #e2e8f4;
    --ai-soft: #f1f5fc;
    --ai-grad: linear-gradient(120deg, #0a2463 0%, #0f3db8 100%);
    --ai-shadow: rgba(10, 36, 99, .18);
}
.airdc { color: var(--ai-ink); }
.airdc p { color: var(--ai-muted); line-height: 1.75; }

/* colour cycle used by cards, badges and icons: blues, with orange as the occasional accent */
.airdc .c1, .airdc-menu .c1 { --c-a: #0f3db8; --c-b: #1d5bc9; --c-soft: #eef3fc; }
.airdc .c2, .airdc-menu .c2 { --c-a: #0a2463; --c-b: #173a8a; --c-soft: #edf0f7; }
.airdc .c3, .airdc-menu .c3 { --c-a: #1d5bc9; --c-b: #3b78dc; --c-soft: #eef4fd; }
.airdc .c4, .airdc-menu .c4 { --c-a: #e06c0c; --c-b: #f77a10; --c-soft: #fff5ec; }
.airdc .ai-table .c4 { --c-a: #1d5bc9; --c-b: #3b78dc; --c-soft: #eef4fd; }
.airdc .c5 { --c-a: #0f3db8; --c-b: #1d5bc9; --c-soft: #eef3fc; }
.airdc .c6 { --c-a: #0a2463; --c-b: #173a8a; --c-soft: #edf0f7; }

/* section title */
.airdc .ai-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 1.5rem;
    font-size: 1.75rem;
    font-weight: 700;
}
.airdc .ai-title span { color: var(--ai-navy); }
.airdc .ai-title::after {
    content: "";
    flex: 1;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--ai-orange) 0 64px, var(--ai-line) 64px);
}
.airdc .ai-subtitle {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 2.5rem 0 1.25rem;
    color: var(--ai-ink);
}
.airdc .ai-subtitle i {
    color: var(--ai-orange);
    margin-right: 8px;
}

/* intro hero strip */
.airdc .ai-hero {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    padding: 28px 32px;
    margin-bottom: 2rem;
    color: #fff;
    background: var(--ai-grad);
    box-shadow: 0 16px 40px -18px var(--ai-shadow);
}
.airdc .ai-hero::before,
.airdc .ai-hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, .12);
}
.airdc .ai-hero::before { width: 220px; height: 220px; right: -60px; top: -80px; }
.airdc .ai-hero::after { width: 140px; height: 140px; right: 120px; bottom: -70px; }
.airdc .ai-hero .tag {
    display: inline-block;
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .2);
    margin-bottom: 10px;
}
.airdc .ai-hero h2 { color: #fff; font-size: 1.6rem; font-weight: 700; margin: 0 0 6px; position: relative; z-index: 1; }
.airdc .ai-hero p { color: rgba(255, 255, 255, .92); margin: 0; position: relative; z-index: 1; }

/* ---------- Leadership & Vision ---------- */
.airdc .leader {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    padding: 28px;
    border-radius: 20px;
    background: #fff;
    box-shadow: 0 10px 30px -12px var(--ai-shadow);
    border: 1px solid var(--ai-line);
}
.airdc .leader-photo {
    flex: 0 0 220px;
    text-align: center;
}
.airdc .leader-photo .ring {
    padding: 6px;
    border-radius: 20px;
    background: var(--ai-grad);
}
.airdc .leader-photo img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 15px;
    background: #fff;
}
.airdc .leader-photo h3 { font-size: 1.1rem; font-weight: 700; margin: 14px 0 2px; color: var(--ai-ink); }
.airdc .leader-photo small { color: var(--ai-blue); font-weight: 600; }
.airdc .leader-text { position: relative; }
.airdc .leader-text .fa-quote-left {
    font-size: 2.4rem;
    color: #f9c79a;
    margin-bottom: 8px;
}
.airdc .leader-text p { font-size: 1.05rem; text-align: justify; }

.airdc .pillars {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 18px;
}
.airdc .pillar {
    padding: 22px 20px;
    border-radius: 16px;
    background: var(--c-soft);
    border-top: 4px solid var(--c-a);
    transition: transform .2s ease, box-shadow .2s ease;
}
.airdc .pillar:hover { transform: translateY(-4px); box-shadow: 0 12px 24px -12px var(--c-a); }
.airdc .pillar i,
.airdc .icon-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    color: #fff;
    font-size: 1.2rem;
    background: linear-gradient(135deg, var(--c-a), var(--c-b));
    margin-bottom: 12px;
}
.airdc .pillar h4 { font-size: 1rem; font-weight: 700; margin: 0; color: var(--ai-ink); line-height: 1.4; }

/* ---------- Scope & Objectives ---------- */
.airdc .scope-card {
    border-radius: 20px;
    padding: 28px;
    background: #fff;
    border: 1px solid var(--ai-line);
    border-left: 5px solid var(--ai-blue);
    box-shadow: 0 10px 30px -14px var(--ai-shadow);
}
.airdc .scope-card p { text-align: justify; margin-bottom: 0; }

.airdc .cycle {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}
.airdc .cycle li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: .95rem;
}
.airdc .cycle li span {
    padding: 8px 16px;
    border-radius: 999px;
    color: #fff;
    background: linear-gradient(135deg, var(--c-a), var(--c-b));
}
.airdc .cycle li:not(:last-child)::after {
    content: "\f061";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    color: var(--ai-orange);
}

.airdc .chips { display: flex; flex-wrap: wrap; gap: 10px; }
.airdc .chip {
    padding: 8px 16px;
    border-radius: 999px;
    font-weight: 600;
    font-size: .9rem;
    color: var(--c-a);
    background: var(--c-soft);
    border: 1px solid var(--c-a);
}

.airdc .obj-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 18px;
    counter-reset: obj;
}
.airdc .obj {
    position: relative;
    display: flex;
    gap: 14px;
    padding: 20px;
    border-radius: 16px;
    background: #fff;
    border: 1px solid var(--ai-line);
    box-shadow: 0 6px 18px -10px var(--ai-shadow);
    counter-increment: obj;
    transition: transform .2s ease, box-shadow .2s ease;
}
.airdc .obj::before {
    content: counter(obj, decimal-leading-zero);
    flex: 0 0 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, var(--c-a), var(--c-b));
}
.airdc .obj:hover { transform: translateY(-4px); box-shadow: 0 14px 28px -14px var(--c-a); }
.airdc .obj p { margin: 0; color: #334155; font-size: .95rem; line-height: 1.6; }

/* ---------- Members (table) ---------- */
.airdc .ai-table-wrap {
    border-radius: 18px;
    overflow-x: auto;
    background: #fff;
    box-shadow: 0 12px 30px -14px var(--ai-shadow);
    border: 1px solid var(--ai-line);
}
.airdc .ai-table {
    width: 100%;
    min-width: 640px;
    margin: 0;
    border-collapse: collapse;
}
.airdc .ai-table thead th {
    padding: 14px 16px;
    color: #fff;
    font-weight: 700;
    font-size: .95rem;
    white-space: nowrap;
    border: 0;
    background: var(--ai-grad);
}
.airdc .ai-table td {
    padding: 12px 16px;
    vertical-align: middle;
    border: 0;
    border-bottom: 1px solid var(--ai-line);
    color: #334155;
}
.airdc .ai-table tbody tr { border-left: 3px solid transparent; transition: background .2s ease; }
.airdc .ai-table tbody tr:nth-child(even) { background: #f8fafd; }
.airdc .ai-table tbody tr:hover { background: var(--ai-soft); border-left-color: var(--ai-orange); }
.airdc .ai-table .sl {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: .85rem;
    color: #fff;
    background: linear-gradient(135deg, var(--c-a), var(--c-b));
}
.airdc .ai-table .who { display: flex; align-items: center; gap: 12px; font-weight: 700; color: var(--ai-ink); white-space: nowrap; }
.airdc .role {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: .78rem;
    font-weight: 700;
    white-space: nowrap;
}
.airdc .role.lead { color: #fff; background: var(--ai-navy); }
.airdc .role.head { color: #fff; background: var(--ai-blue); }
.airdc .role.member { color: var(--ai-blue); background: #e6edfb; }
.airdc .role.intern { color: #b85a08; background: #fff1e3; }
.airdc .skills { display: flex; flex-wrap: wrap; gap: 6px; }
.airdc .skills span {
    font-size: .78rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 8px;
    color: var(--c-a);
    background: var(--c-soft);
}
.airdc .ai-table .na { color: #94a3b8; }

/* ---------- Projects ---------- */
.airdc .proj-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 20px;
}
.airdc .proj {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: 18px;
    background: #fff;
    border: 1px solid var(--ai-line);
    box-shadow: 0 8px 22px -12px var(--ai-shadow);
    transition: transform .2s ease, box-shadow .2s ease;
}
.airdc .proj:hover { transform: translateY(-6px); box-shadow: 0 18px 34px -14px rgba(10, 36, 99, .35); }
/* cover image: the artwork's product mark sits near the top, so crop from the bottom */
.airdc .proj-cover {
    position: relative;
    margin: 0;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--ai-soft);
    border-bottom: 3px solid var(--ai-orange);
}
.airdc .proj-cover img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 50% 20%;
    transition: transform .5s ease;
}
.airdc .proj:hover .proj-cover img { transform: scale(1.05); }
/* no cover yet: product mark centred on a navy panel */
.airdc .proj-cover.is-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ai-grad);
}
.airdc .proj-cover.is-mark img {
    width: 112px;
    height: 112px;
    object-fit: contain;
    border-radius: 18px;
    box-shadow: 0 12px 28px -10px rgba(0, 0, 0, .5);
}
.airdc .proj:hover .proj-cover.is-mark img { transform: scale(1.08); }
.airdc .proj-body { padding: 18px 20px 22px; }
.airdc .proj h4 { font-size: 1.15rem; font-weight: 800; margin: 0 0 8px; color: var(--ai-ink); }
.airdc .proj h4 b { color: var(--ai-orange); }
.airdc .proj p { margin: 0; font-size: .95rem; line-height: 1.6; }

/* ---------- AI banner (carousel.php) ---------- */
.airdc-banner {
    position: relative;
    width: 100%;
    aspect-ratio: 1920 / 284;
    min-height: 170px;
    background: #0a2463;
    overflow: hidden;
}
.airdc-banner-art {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}
.airdc-banner-text {
    position: absolute;
    text-align: left;
    top: 50%;
    left: 6%;
    right: 6%;
    transform: translateY(-50%);
    color: #fff;
}
.airdc-banner-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 14px;
    border-radius: 999px;
    font-size: clamp(.68rem, .9vw, .85rem);
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .25);
}
.airdc-banner-tag i { color: var(--ai-orange); }
.airdc-banner-title {
    margin: 10px 0 6px;
    font-size: clamp(1.35rem, 3.2vw, 3rem);
    font-weight: 900;
    line-height: 1.1;
    color: #fff;
    text-shadow: 0 4px 24px rgba(0, 0, 0, .35);
}
.airdc-banner-title span { color: var(--ai-orange); }
.airdc-banner-sub {
    margin: 0;
    font-size: clamp(.75rem, 1.1vw, 1.05rem);
    font-weight: 500;
    color: rgba(255, 255, 255, .85);
}
.airdc-banner-sub i { font-style: normal; color: var(--ai-orange); margin: 0 4px; }
.airdc-flow polyline {
    stroke-dasharray: 60 900;
    stroke-dashoffset: 960;
    animation: airdcFlow 4.5s linear infinite;
}
.airdc-node {
    animation: airdcPulse 2.8s ease-in-out infinite;
}
@keyframes airdcFlow { to { stroke-dashoffset: 0; } }
@keyframes airdcPulse { 0%, 100% { opacity: .7; } 50% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
    .airdc-flow polyline, .airdc-node { animation: none; }
}
@media only screen and (max-width: 767px) {
    .airdc-banner-sub { display: none; }
    .airdc-banner-text { right: 30%; }
}

/* ---------- Photo mosaic banner (banner-mosaic.php) ---------- */
/* rows are pinned to the banner height so tall portrait images cannot stretch the strip */
.airdc-mosaic { display: grid; grid-template-rows: minmax(0, 1fr); }
/* Wide tiles hold the full 3:2 "Mission AI" photos: 22.2% is 1.5x the banner height
   (1920x284), and 255px is 1.5x its 170px minimum height, so the sign is never cropped. */
.airdc-mosaic-tiles {
    --wide: max(22.2%, 255px);
    display: grid;
    grid-template-columns: var(--wide) repeat(6, 1fr) var(--wide);
    gap: 3px;
    background: #061847;
    grid-template-rows: minmax(0, 1fr);
    min-width: 0;
    min-height: 0;
}
.airdc-tile {
    position: relative;
    min-height: 0;
    margin: 0;
    overflow: hidden;
    animation: airdcTileIn .6s ease both;
    animation-delay: var(--d, 0s);
}
.airdc-tile img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 50% 25%;   /* tiles are wider than the crops; keep heads in frame */
    transition: transform .5s ease;
}
/* light navy wash ties the photos to the palette; lifts on hover */
.airdc-tile::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 36, 99, .05) 40%, rgba(6, 24, 71, .45) 100%);
    transition: opacity .3s ease;
}
.airdc-tile.is-wide img { object-position: 0 50%; }   /* the sign is on the left of both photos */
.airdc-tile.is-wide::after { background: linear-gradient(180deg, transparent 55%, rgba(6, 24, 71, .35) 100%); }
.airdc-tile:hover img { transform: scale(1.06); }
.airdc-tile:hover::after { opacity: .3; }
@keyframes airdcTileIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
    .airdc-tile { animation: none; }
    .airdc-tile img { transition: none; }
}
/* tiles: 1 = wide, 2–7 = portrait, 8 = wide. Drop portrait tiles first, then the right wide one */
@media only screen and (max-width: 1199px) {
    .airdc-mosaic-tiles { grid-template-columns: var(--wide) repeat(4, 1fr) var(--wide); }
    .airdc-tile:nth-child(6), .airdc-tile:nth-child(7) { display: none; }
}
@media only screen and (max-width: 991px) {
    .airdc-mosaic-tiles { grid-template-columns: var(--wide) repeat(4, 1fr); }
    .airdc-tile:nth-child(8) { display: none; }
}
@media only screen and (max-width: 575px) {
    .airdc-mosaic-tiles { grid-template-columns: var(--wide) 1fr; }
    .airdc-tile:nth-child(n+3) { display: none; }
}

/* ---------- Banner slider (carousel.php) ---------- */
.airdc-slider {
    position: relative;
    overflow: hidden;
    background: #0a2463;
}
.airdc-slider-track {
    display: flex;
    transition: transform .7s cubic-bezier(.65, 0, .35, 1);
}
.airdc-slide {
    flex: 0 0 100%;
    min-width: 0;
}
/* replay the tile entrance each time the photo slide comes into view */
.airdc-slide:not(.is-active) .airdc-tile { animation: none; }
.airdc-slider-dots {
    position: absolute;
    left: 50%;
    bottom: 12px;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
}
.airdc-slider-dots button {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: rgba(255, 255, 255, .5);
    cursor: pointer;
    transition: width .3s ease, background .3s ease;
}
.airdc-slider-dots button.is-active { width: 28px; background: var(--ai-orange, #f77a10); }
.airdc-slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 50%;
    color: #fff;
    background: rgba(6, 24, 71, .55);
    cursor: pointer;
    opacity: 0;
    transition: opacity .25s ease, background .25s ease;
}
.airdc-slider-arrow.prev { left: 12px; }
.airdc-slider-arrow.next { right: 12px; }
.airdc-slider:hover .airdc-slider-arrow,
.airdc-slider-arrow:focus-visible { opacity: 1; }
.airdc-slider-arrow:hover { background: var(--ai-orange, #f77a10); }
@media (prefers-reduced-motion: reduce) {
    .airdc-slider-track { transition: none; }
}
/* touch screens swipe instead; keep the arrows out of the way */
@media only screen and (max-width: 991px) {
    .airdc-slider-arrow { display: none; }
}

/* ---------- Side nav (left-nav.php) ---------- */
.airdc-menu {
    border-radius: 16px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 12px 30px -14px var(--ai-shadow);
    border: 1px solid var(--ai-line);
}
.airdc-menu-head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    color: #fff;
    background: var(--ai-grad);
    border-bottom: 3px solid var(--ai-orange);
}
.airdc-menu-head b { display: block; font-size: 1.15rem; letter-spacing: .06em; }
.airdc-menu-head small { display: block; opacity: .9; font-size: .75rem; line-height: 1.3; }
.airdc-menu-logo {
    flex: 0 0 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    background: rgba(255, 255, 255, .22);
}
.airdc-menu ul.resp-tabs-list {
    border: 0;
    margin: 0;
    padding: 10px;
}
.airdc-menu ul.resp-tabs-list li.resp-tab-item {
    border: 0;
    background: transparent;
    margin-bottom: 6px;
}
.airdc-menu ul.resp-tabs-list li.resp-tab-item:last-child { margin-bottom: 0; }
.airdc-menu ul.resp-tabs-list li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 12px;
    font-weight: 600;
    color: var(--ai-ink);
    background: var(--ai-soft);
    border-left: 4px solid transparent;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.airdc-menu .nav-ico {
    flex: 0 0 34px;
    height: 34px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ai-blue);
    background: #dfe7f8;
}
.airdc-menu ul.resp-tabs-list .nav-ico i { margin: 0; font-size: .95rem; }
.airdc-menu ul.resp-tabs-list li a:hover {
    color: var(--ai-blue);
    background: #e6edfb;
    border-left-color: var(--ai-orange);
    transform: translateX(4px);
}
.airdc-menu ul.resp-tabs-list li a.is-selected,
.airdc-menu ul.resp-tabs-list li a.is-selected:hover {
    color: #fff;
    background: var(--ai-grad);
    border-left-color: var(--ai-orange);
    box-shadow: 0 10px 22px -12px var(--ai-navy);
}
.airdc-menu ul.resp-tabs-list li a.is-selected .nav-ico { color: #fff; background: rgba(255, 255, 255, .18); }

/* hamburger (mobile / tablet only; dept.css hides .open-panel above 1100px).
   On these widths dept.css makes .left-nav a fixed, full-height drawer slid off-screen,
   so anything positioned inside it is pinned to the viewport. */
@media only screen and (max-width: 1099px) {
    .left-nav .airdc-menu { background: #fff; border: 0; border-radius: 0; padding: 0; display: block; }
    .left-nav .airdc-menu-head { padding-right: 64px; }
    /* leave room for the hamburger tab, which lines up with this title */
    .airdc .ai-title { padding-left: 44px; }

    /* closed: tab flush against the left screen edge. --hb-top is set by left-nav.php so the
       tab lines up with the section title, then sticks below the site header on scroll */
    .left-nav .open-panel.airdc-panel {
        top: var(--hb-top, 50%);
        bottom: auto;
        right: -48px;
        width: 48px;
        height: 48px;
        z-index: 2;
    }
    .left-nav:not(.active) .open-panel.airdc-panel button { border-radius: 0 14px 14px 0; }
    /* open: the close button sits inside the drawer header, flush with it */
    .left-nav.active .open-panel.airdc-panel {
        top: 18px;
        bottom: auto;
        right: 12px;
        width: 40px;
        height: 40px;
    }
    .left-nav.active .open-panel.airdc-panel button {
        width: 40px;
        height: 40px;
        border-radius: 10px;
        background: rgba(255, 255, 255, .16);
        box-shadow: none;
    }
    /* dim the page behind the open drawer; a tap on it closes the drawer (left-nav.php) */
    .left-nav::after {
        content: "";
        position: absolute;
        top: 0;
        left: 100%;
        width: 100vw;
        height: 100%;
        background: rgba(6, 24, 71, .5);
        opacity: 0;
        visibility: hidden;
        transition: opacity .2s ease, visibility .2s;
    }
    .left-nav.active::after { opacity: 1; visibility: visible; }

    .open-panel.airdc-panel button {
        width: 48px;
        height: 48px;
        border: 0;
        border-radius: 14px;
        background: var(--ai-grad);
        box-shadow: 0 10px 22px -8px rgba(10, 36, 99, .6);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .open-panel.airdc-panel button::before,
    .open-panel.airdc-panel button::after { display: none; }
    .airdc-panel .bars {
        transform: none;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 5px;
        width: 22px;
    }
    .airdc-panel .bars i {
        display: block;
        height: 3px;
        border-radius: 3px;
        background: #fff;
        transition: transform .25s ease, opacity .2s ease;
    }
    .left-nav.active .airdc-panel .bars i:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .left-nav.active .airdc-panel .bars i:nth-child(2) { opacity: 0; }
    .left-nav.active .airdc-panel .bars i:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
}

@media only screen and (max-width: 767px) {
    .airdc .ai-title { font-size: 1.4rem; }
    .airdc .ai-hero { padding: 22px 20px; }
    .airdc .ai-hero h2 { font-size: 1.3rem; }
    .airdc .leader { flex-direction: column; align-items: center; padding: 20px; }
    .airdc .leader-photo { flex-basis: auto; width: 200px; }
    .airdc .obj-grid, .airdc .proj-grid { grid-template-columns: 1fr; }
}