/* =========================================================
   DPT HOME PAGE
========================================================= */

:root {

    --home-black: #050505;
    --home-black-soft: #0a0908;
    --home-charcoal: #111111;

    --home-paper: #f5f4f1;
    --home-white: #ffffff;

    --home-ink: #151515;
    --home-muted: #6f6f73;

    --home-light-border:
        rgba(20,20,20,.13);

    --home-dark-border:
        rgba(255,255,255,.12);

}


/* =========================================================
   HERO
========================================================= */

.home-hero {

    position: relative;

    width: 100%;

    min-height: 102vh;
    height: 102vh;

    overflow: hidden;

    display: flex;

    align-items: center;
    justify-content: center;

    color: #ffffff;

    background: #000000;

}


/* =========================================================
   VIDEO
========================================================= */

.home-video {

    position: absolute;

    inset: 0;

    z-index: 0;

    width: 100%;
    height: 100%;

    overflow: hidden;

}


.home-video video {

    position: absolute;

    top: 50%;
    left: 50%;

    width: 100%;
    height: 100%;

    min-width: 100%;
    min-height: 100%;

    object-fit: cover;

    object-position: bottom center;

    transform:
        translate(-50%,-50%);

}


/* =========================================================
   VIDEO OVERLAY
========================================================= */

.home-overlay {

    position: absolute;

    inset: 0;

    z-index: 1;

    pointer-events: none;

    background:

        radial-gradient(
            circle
            at
            var(--hero-x,50%)
            var(--hero-y,45%),

            rgba(255,255,255,.025),

            transparent 26%
        ),

        radial-gradient(
            circle at center,
            rgba(0,0,0,.02),
            rgba(0,0,0,.25)
        ),

        linear-gradient(
            90deg,
            rgba(0,0,0,.40),
            rgba(0,0,0,.09) 35%,
            rgba(0,0,0,.09) 65%,
            rgba(0,0,0,.40)
        ),

        linear-gradient(
            180deg,
            rgba(0,0,0,.20),
            rgba(0,0,0,.06) 50%,
            rgba(0,0,0,.33)
        );

}


/* =========================================================
   STATIC GRID
========================================================= */

.home-grid {

    position: absolute;

    inset: 0;

    z-index: 2;

    pointer-events: none;

    opacity: .065;

    background-image:

        linear-gradient(
            rgba(255,255,255,.04) 1px,
            transparent 1px
        ),

        linear-gradient(
            90deg,
            rgba(255,255,255,.04) 1px,
            transparent 1px
        );

    background-size:
        75px 75px;

    mask-image:
        linear-gradient(
            to bottom,
            black,
            rgba(0,0,0,.7) 70%,
            transparent 100%
        );

}


/* =========================================================
   HERO CONTENT
========================================================= */

.home-hero-content {

    position: relative;

    z-index: 5;

    width:
        min(
            800px,
            calc(100% - 40px)
        );

    margin-top: 20px;

    text-align: center;

    transform:
        translate(
            var(--hero-shift-x,0),
            var(--hero-shift-y,0)
        );

    transition:
        transform .18s ease-out;

}


/* =========================================================
   HERO SMALL LABEL
========================================================= */

.hero-small {

    display: inline-flex;

    align-items: center;

    gap: 14px;

    margin-bottom: 22px;

    color:
        rgba(255,255,255,.72);

    font-size: .69rem;

    font-weight: 700;

    letter-spacing: .32em;

    text-transform: uppercase;

}


.hero-small::before,
.hero-small::after {

    content: "";

    width: 30px;
    height: 1px;

    background:
        rgba(255,255,255,.28);

}


/* =========================================================
   DPT TITLE
========================================================= */

.home-hero-content h1 {

    margin: 0;

    color: #ffffff;

    font-family:
        var(--display-font);

    font-size:
        clamp(
            6rem,
            11vw,
            10.5rem
        );

    font-weight: 700;

    line-height: .82;

    letter-spacing:
        -.075em;

    text-shadow:

        0 4px 25px
        rgba(0,0,0,.45),

        0 0 8px
        rgba(255,255,255,.25),

        0 0 30px
        rgba(255,255,255,.08);

}


/* =========================================================
   HERO SUBTITLE
========================================================= */

.home-hero-content h2 {

    margin-top: 33px;

    color: #ffffff;

    font-family:
        var(--display-font);

    font-size:
        clamp(
            1.25rem,
            2.2vw,
            2.4rem
        );

    font-weight: 600;

    letter-spacing:
        .15em;

    text-transform: uppercase;

    text-shadow:

        0 0 4px
        rgba(255,255,255,.80),

        0 0 10px
        rgba(255,255,255,.35),

        0 0 24px
        rgba(255,255,255,.12);

}


/* =========================================================
   DESCRIPTION
========================================================= */

.hero-description {

    max-width: 690px;

    margin:
        27px auto 0;

    color:
        rgba(255,255,255,.77);

    font-size: 1rem;

    line-height: 1.85;

    text-shadow:
        0 2px 18px
        rgba(0,0,0,.72);

}


/* =========================================================
   HERO BUTTONS
========================================================= */

.hero-buttons {

    display: flex;

    justify-content: center;

    flex-wrap: wrap;

    gap: 14px;

    margin-top: 34px;

}


.btn-primary,
.btn-secondary {

    position: relative;

    min-height: 52px;

    padding:
        0 24px;

    display: inline-flex;

    align-items: center;
    justify-content: center;

    gap: 11px;

    overflow: hidden;

    border-radius: 5px;

    font-size: .82rem;

    font-weight: 700;

    transition:

        transform .25s ease,
        background .25s ease,
        border-color .25s ease,
        box-shadow .25s ease;

}


.btn-primary {

    color: #111111;

    background: #ffffff;

    border:
        1px solid #ffffff;

}


.btn-primary::before {

    content: "";

    position: absolute;

    inset: 0;

    background:

        linear-gradient(
            110deg,
            transparent 20%,
            rgba(0,0,0,.08),
            transparent 80%
        );

    transform:
        translateX(-120%);

    transition:
        transform .45s ease;

}


.btn-primary:hover::before {

    transform:
        translateX(120%);

}


.btn-secondary {

    color: #ffffff;

    background:
        rgba(255,255,255,.035);

    border:
        1px solid
        rgba(255,255,255,.42);

    backdrop-filter:
        blur(8px);

}


.btn-primary:hover,
.btn-secondary:hover {

    transform:
        translateY(-4px);

}


.btn-primary:hover {

    box-shadow:
        0 15px 40px
        rgba(0,0,0,.25);

}


.btn-primary i {

    transition:
        transform .25s ease;

}


.btn-primary:hover i {

    transform:
        translateX(4px);

}


.btn-secondary:hover {

    background:
        rgba(255,255,255,.09);

}


/* =========================================================
   SCROLL INDICATOR
========================================================= */

.home-scroll {

    position: absolute;

    left: 50%;
    bottom: 34px;

    z-index: 5;

    display: flex;

    flex-direction: column;

    align-items: center;

    gap: 9px;

    transform:
        translateX(-50%);

    color:
        rgba(255,255,255,.62);

}


.scroll-mouse {

    position: relative;

    width: 24px;
    height: 38px;

    border:
        1px solid
        rgba(255,255,255,.42);

    border-radius: 20px;

}


.scroll-mouse span {

    position: absolute;

    top: 8px;
    left: 50%;

    width: 3px;
    height: 7px;

    background: #ffffff;

    border-radius: 3px;

    transform:
        translateX(-50%);

    animation:
        homeScrollDot
        1.7s infinite;

}


.home-scroll small {

    font-size: .56rem;

    font-weight: 700;

    letter-spacing: .18em;

}


@keyframes homeScrollDot {

    0% {

        opacity: 0;

        transform:
            translate(
                -50%,
                0
            );

    }

    25% {

        opacity: 1;

    }

    100% {

        opacity: 0;

        transform:
            translate(
                -50%,
                15px
            );

    }

}


/* =========================================================
   COPYRIGHT
========================================================= */

.hero-copyright {

    position: absolute;

    right: 40px;
    bottom: 24px;

    z-index: 5;

    text-align: right;

    color:
        rgba(255,255,255,.38);

}


.hero-copyright p {

    margin: 0;

    font-size: .62rem;

}


.hero-copyright span {

    display: block;

    margin-top: 2px;

    font-size: .52rem;

    letter-spacing: .13em;

    text-transform: uppercase;

}


/* =========================================================
   HOME SECTIONS
========================================================= */

.home-section {

    position: relative;

    padding:
        120px 0;

    overflow: hidden;

}


.home-section::before {

    content: "";

    position: absolute;

    inset: 0;

    pointer-events: none;

    opacity: .45;

    background-image:

        linear-gradient(
            rgba(0,0,0,.017) 1px,
            transparent 1px
        ),

        linear-gradient(
            90deg,
            rgba(0,0,0,.017) 1px,
            transparent 1px
        );

    background-size:
        52px 52px;

}


/* =========================================================
   HOME STATEMENT
========================================================= */

.home-statement {

    color: #151515;

    background:
        #f6f5f2;

}


.home-statement-grid {

    position: relative;

    z-index: 2;

    display: grid;

    grid-template-columns:
        190px 1fr;

    gap: 80px;

    align-items: start;

}


.statement-index {

    position: sticky;

    top: 130px;

}


.statement-index > span,
.home-index {

    display: block;

    margin-bottom: 10px;

    color: #b0b0b0;

    font:
        700 2.2rem
        var(--display-font);

}


.section-tag {

    color: #737373;

    font-size: .68rem;

    font-weight: 800;

    letter-spacing: .18em;

    text-transform: uppercase;

}


.home-statement h2,
.home-section-heading h2 {

    max-width: 820px;

    margin: 0;

    font-family:
        var(--display-font);

    font-size:
        clamp(
            2.8rem,
            5vw,
            5rem
        );

    font-weight: 700;

    line-height: .98;

    letter-spacing:
        -.055em;

}


.statement-lead {

    max-width: 760px;

    margin-top: 28px;

    color: #6d6d73;

    font-size: .98rem;

}


/* =========================================================
   RESEARCH STATUS
========================================================= */

.research-status {

    display: grid;

    grid-template-columns:
        repeat(4,1fr);

    gap: 1px;

    margin-top: 55px;

    background:
        rgba(0,0,0,.13);

    border:
        1px solid
        rgba(0,0,0,.13);

}


.research-status > div {

    padding:
        18px;

    background: #ffffff;

    transition:
        background .25s ease,
        color .25s ease;

}


.research-status > div:hover {

    color: #ffffff;

    background: #111111;

}


.research-status span,
.research-status strong {

    display: block;

}


.research-status span {

    opacity: .45;

    font-size: .6rem;

    font-weight: 800;

    letter-spacing: .12em;

}


.research-status strong {

    margin-top: 5px;

    font-size: .78rem;

}


/* =========================================================
   SECTION HEADING
========================================================= */

.home-section-heading {

    position: relative;

    z-index: 2;

    display: grid;

    grid-template-columns:
        190px 1fr;

    gap: 80px;

    align-items: start;

    margin-bottom: 60px;

}


.home-section-heading > div:last-child > p {

    max-width: 720px;

    margin-top: 23px;

    color: var(--home-muted);

}


/* =========================================================
   FOUNDATIONS
========================================================= */

.home-foundations {

    color: #151515;

    background: #ffffff;

}


.foundation-interface {

    position: relative;

    z-index: 2;

    display: grid;

    grid-template-columns:
        repeat(4,1fr);

    gap: 16px;

}


.home-concept-card {

    position: relative;

    min-height: 330px;

    padding: 29px;

    overflow: hidden;

    background:
        rgba(255,255,255,.95);

    border:
        1px solid
        var(--home-light-border);

    transition:

        transform .28s ease,
        border-color .28s ease,
        box-shadow .28s ease;

}


.home-concept-card::before {

    content: "";

    position: absolute;

    inset: 0;

    pointer-events: none;

    opacity: 0;

    background:

        radial-gradient(
            320px circle
            at var(--mouse-x,50%)
            var(--mouse-y,50%),

            rgba(0,0,0,.055),

            transparent 45%
        );

    transition:
        opacity .25s ease;

}


.home-concept-card:hover::before {

    opacity: 1;

}


.home-concept-card:hover {

    transform:
        translateY(-7px);

    border-color:
        rgba(20,20,20,.35);

    box-shadow:
        0 25px 70px
        rgba(0,0,0,.08);

}


.concept-number {

    position: absolute;

    right: 22px;
    top: 17px;

    color: #dddddd;

    font:
        700 2.6rem
        var(--display-font);

}


.home-concept-card > i {

    font-size: 1.35rem;

    transition:
        transform .35s ease;

}


.home-concept-card:hover > i {

    transform:
        scale(1.12)
        rotate(-5deg);

}


.home-concept-card h3 {

    margin:
        80px 0 13px;

    font:
        700 1.55rem
        var(--display-font);

}


.home-concept-card p {

    color: var(--home-muted);

    font-size: .86rem;

}


.home-concept-card a {

    position: absolute;

    left: 29px;
    bottom: 27px;

    display: flex;

    align-items: center;

    gap: 8px;

    font-size: .7rem;

    font-weight: 800;

}


.home-concept-card a i {

    transition:
        transform .25s ease;

}


.home-concept-card:hover a i {

    transform:
        translateX(4px);

}


/* =========================================================
   RESEARCH PATH
========================================================= */

.home-path {

    color: #ffffff;

    background:

        radial-gradient(
            circle at 65% 30%,
            rgba(90,75,65,.09),
            transparent 32%
        ),

        #0b0a09;

}


.home-path::before {

    background-image:

        linear-gradient(
            rgba(255,255,255,.025) 1px,
            transparent 1px
        ),

        linear-gradient(
            90deg,
            rgba(255,255,255,.025) 1px,
            transparent 1px
        );

}


.dark-heading .section-tag {

    color:
        rgba(255,255,255,.43);

}


.dark-heading .home-index {

    color:
        rgba(255,255,255,.15);

}


.dark-heading p {

    color:
        rgba(255,255,255,.54) !important;

}


.research-path {

    position: relative;

    z-index: 2;

    display: grid;

    grid-template-columns:
        repeat(4,1fr);

    gap: 16px;

}


.path-progress {

    position: absolute;

    left: 8%;
    right: 8%;
    top: 46px;

    height: 1px;

    background:
        rgba(255,255,255,.10);

}


.path-progress-fill {

    width: 0;
    height: 100%;

    background:
        rgba(255,255,255,.65);

    transition:
        width 1.2s ease;

}


.home-path.path-visible
.path-progress-fill {

    width: 66%;

}


.path-stage {

    position: relative;

    min-height: 330px;

    padding:
        90px 27px 30px;

    border:
        1px solid
        rgba(255,255,255,.10);

    background:
        rgba(255,255,255,.025);

    transition:

        transform .28s ease,
        border-color .28s ease,
        opacity .28s ease;

}


.path-stage:hover {

    transform:
        translateY(-7px);

    border-color:
        rgba(255,255,255,.32);

}


.path-number {

    position: absolute;

    top: 20px;
    right: 20px;

    color:
        rgba(255,255,255,.16);

    font:
        700 2rem
        var(--display-font);

}


.path-circle {

    position: absolute;

    left: 27px;
    top: 26px;

    z-index: 4;

    width: 40px;
    height: 40px;

    display: grid;

    place-items: center;

    color: #111111;

    background: #ffffff;

    border:
        1px solid #ffffff;

    border-radius: 50%;

}


.current .path-circle {

    background: #111111;

    border-color:
        rgba(255,255,255,.55);

}


.current
.path-circle span {

    width: 8px;
    height: 8px;

    background: #ffffff;

    border-radius: 50%;

}


.future {

    opacity: .48;

}


.path-stage h3 {

    margin:
        0 0 14px;

    font:
        700 1.3rem
        var(--display-font);

}


.path-stage p {

    color:
        rgba(255,255,255,.53);

    font-size: .84rem;

}


.path-status {

    position: absolute;

    left: 27px;
    bottom: 25px;

    color:
        rgba(255,255,255,.34);

    font-size: .6rem;

    font-weight: 800;

    letter-spacing: .13em;

}


/* =========================================================
   EXPLORE
========================================================= */

.home-explore {

    color: #151515;

    background: #f6f5f2;

}


.explore-grid {

    position: relative;

    z-index: 2;

    display: grid;

    grid-template-columns:
        1fr 1fr;

    gap: 16px;

}


.explore-card {

    position: relative;

    min-height: 270px;

    padding: 30px;

    display: grid;

    grid-template-columns:
        50px 1fr auto;

    gap: 25px;

    align-items: center;

    overflow: hidden;

    background: #ffffff;

    border:
        1px solid
        var(--home-light-border);

    transition:

        transform .28s ease,
        border-color .28s ease,
        box-shadow .28s ease;

}


.explore-card::before {

    content: "";

    position: absolute;

    left: 0;
    top: 0;

    width: 100%;
    height: 3px;

    background: #111111;

    transform:
        scaleX(0);

    transform-origin:
        left;

    transition:
        transform .35s ease;

}


.explore-card:hover::before {

    transform:
        scaleX(1);

}


.explore-card:hover {

    transform:
        translateY(-6px);

    border-color:
        rgba(20,20,20,.34);

    box-shadow:
        0 24px 70px
        rgba(0,0,0,.08);

}


.explore-card > span {

    color: #c5c5c5;

    font:
        700 1.5rem
        var(--display-font);

}


.explore-card small {

    color: #8a8a8a;

    font-size: .6rem;

    font-weight: 800;

    letter-spacing: .12em;

}


.explore-card h3 {

    margin:
        7px 0 12px;

    font:
        700 1.7rem
        var(--display-font);

}


.explore-card p {

    max-width: 420px;

    color: var(--home-muted);

    font-size: .84rem;

}


.explore-card > i {

    font-size: 1.1rem;

    transition:
        transform .25s ease;

}


.explore-card:hover > i {

    transform:
        translateX(6px);

}


/* =========================================================
   REVEALS
========================================================= */

.reveal {

    opacity: 0;

    transform:
        translateY(24px);

    transition:

        opacity .7s ease,
        transform .7s ease;

}


.reveal.visible {

    opacity: 1;

    transform: none;

}


/* =========================================================
   PAGE PROGRESS
========================================================= */

.home-progress {

    position: fixed;

    top: 0;
    right: 0;

    z-index: 1600;

    width: 3px;
    height: 0;

    pointer-events: none;

    background:
        rgba(255,255,255,.82);

    mix-blend-mode:
        difference;

}


/* =========================================================
   TABLET
========================================================= */

@media (max-width: 1000px) {

    .home-statement-grid,
    .home-section-heading {

        grid-template-columns:
            1fr;

        gap: 25px;

    }


    .statement-index {

        position: static;

    }


    .research-status,
    .foundation-interface {

        grid-template-columns:
            1fr 1fr;

    }


    .research-path {

        grid-template-columns:
            1fr 1fr;

    }


    .path-progress {

        display: none;

    }

}


/* =========================================================
   MOBILE
========================================================= */

@media (max-width: 650px) {

    .home-hero {

        min-height:
            112svh;

        height:
            112svh;

    }


    .home-hero-content {

        width:
            calc(100% - 28px);

        margin-top: 0;

    }


    .hero-small {

        font-size: .57rem;

        letter-spacing: .19em;

    }


    .hero-small::before,
    .hero-small::after {

        width: 15px;

    }


    .home-hero-content h1 {

        font-size:
            clamp(
                5rem,
                28vw,
                7rem
            );

    }


    .home-hero-content h2 {

        margin-top: 25px;

        font-size: 1rem;

        letter-spacing:
            .12em;

    }


    .hero-description {

        font-size: .86rem;

        line-height: 1.7;

    }


    .hero-buttons {

        width: 100%;

        flex-direction: column;

    }


    .btn-primary,
    .btn-secondary {

        width: 100%;

    }


    .hero-copyright {

        display: none;

    }


    .home-scroll {

        bottom: 18px;

    }


    .home-section {

        padding:
            85px 0;

    }


    .research-status,
    .foundation-interface,
    .research-path,
    .explore-grid {

        grid-template-columns:
            1fr;

    }


    .explore-card {

        grid-template-columns:
            40px 1fr auto;

        min-height: 230px;

        padding: 23px;

    }

}


/* =========================================================
   REDUCED MOTION
========================================================= */

@media
(prefers-reduced-motion: reduce) {

    .home-hero-content {

        transform: none !important;

    }


    .reveal {

        opacity: 1;

        transform: none;

    }


    *,
    *::before,
    *::after {

        animation-duration:
            .01ms !important;

        transition-duration:
            .01ms !important;

    }

}