/* ============================================================
   DOAH / SYNAPTOGENESIS INVESTIGATION
   ============================================================ */


/* ============================================================
   ROOT
   ============================================================ */

:root {

    --black: #020202;
    --deep-black: #000000;

    --ivory: #eee8dc;

    --gold: #d6ae5c;
    --gold-soft: #b99a61;

    --muted: rgba(238, 232, 220, 0.68);
    --faint: rgba(238, 232, 220, 0.38);

    --line: rgba(214, 174, 92, 0.18);

    --serif: "Cormorant Garamond", serif;
    --sans: "DM Sans", sans-serif;
    --accent: "Bodoni Moda", serif;
}


/* ============================================================
   RESET
   ============================================================ */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;

    background: var(--black);

    color: var(--ivory);

    font-family: var(--sans);

    overflow-x: hidden;
}

body.pdf-open {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font: inherit;
}


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

.study-page {
    position: relative;

    width: 100%;

    min-height: 100vh;
}


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

.study-video {
    position: fixed;

    inset: 0;

    z-index: 0;

    width: 100%;
    height: 100%;

    overflow: hidden;

    pointer-events: none;

    background: #020202;
}

.study-video video {
    position: absolute;

    inset: 0;

    width: 100%;
    height: 100%;

    max-width: none;

    display: block;

    object-fit: cover;

    object-position: center center;
}


/* ============================================================
   ATMOSPHERIC VIGNETTE
   ============================================================ */

.study-vignette {
    position: fixed;

    inset: 0;

    z-index: 1;

    pointer-events: none;

    background:
        radial-gradient(
            circle at 50% 45%,
            rgba(0, 0, 0, 0.02) 10%,
            rgba(0, 0, 0, 0.18) 55%,
            rgba(0, 0, 0, 0.78) 100%
        );
}


/* ============================================================
   ATMOSPHERIC OVERLAY
   ============================================================ */

.study-overlay {
    position: fixed;

    inset: 0;

    z-index: 2;

    pointer-events: none;

    background:
        linear-gradient(
            180deg,
            rgba(0, 0, 0, 0.58) 0%,
            rgba(0, 0, 0, 0.12) 35%,
            rgba(0, 0, 0, 0.28) 65%,
            rgba(0, 0, 0, 0.78) 100%
        );
}


/* ============================================================
   SUBTLE GOLD ATMOSPHERIC GLOW
   ============================================================ */

.study-glow {
    position: fixed;

    width: 55vw;
    height: 55vw;

    max-width: 850px;
    max-height: 850px;

    top: 15%;
    left: 50%;

    transform: translateX(-50%);

    z-index: 2;

    pointer-events: none;

    background:
        radial-gradient(
            circle,
            rgba(214, 174, 92, 0.055),
            transparent 68%
        );

    filter: blur(40px);
}


/* ============================================================
   NAVIGATION
   ============================================================ */

.study-nav {
    position: fixed;

    top: 0;
    left: 0;

    width: 100%;

    z-index: 30;

    padding:
        30px
        clamp(25px, 4vw, 65px);

    display: grid;

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

    align-items: center;
}


/* ============================================================
   BACK TO SYNAPTOGENESIS
   ============================================================ */

.study-back {
    justify-self: start;

    display: flex;

    align-items: center;

    gap: 12px;

    color:
        rgba(238, 232, 220, 0.7);

    font-size: 8px;

    font-weight: 400;

    letter-spacing: 0.25em;

    text-transform: uppercase;

    transition:
        color 300ms ease;
}

.study-back-arrow {
    color: var(--gold);

    font-size: 14px;

    transition:
        transform 400ms cubic-bezier(.22, 1, .36, 1);
}

.study-back:hover {
    color: var(--ivory);
}

.study-back:hover .study-back-arrow {
    transform: translateX(-5px);
}


/* ============================================================
   DOAH LOGO
   ============================================================ */

.study-logo-link {
    justify-self: center;

    line-height: 0;
}

.study-logo {
    width:
        clamp(90px, 7vw, 120px);

    height: auto;

    display: block;

    opacity: 0.95;
}


/* ============================================================
   NAVIGATION INDEX
   ============================================================ */

.study-nav-index {
    justify-self: end;

    display: flex;

    align-items: center;

    gap: 12px;

    color:
        rgba(238, 232, 220, 0.4);

    font-size: 7px;

    font-weight: 400;

    letter-spacing: 0.25em;

    text-transform: uppercase;
}

.study-nav-index span:first-child {
    color: var(--gold);
}

.study-nav-line {
    width: 35px;
    height: 1px;

    background:
        rgba(214, 174, 92, 0.35);
}


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

.study-content {
    position: relative;

    z-index: 10;

    min-height: 100vh;

    display: flex;

    align-items: center;

    justify-content: center;

    padding:
        150px 30px
        120px;
}

.study-content-inner {
    width:
        min(1050px, 90vw);

    text-align: center;
}


/* ============================================================
   CATEGORY
   ============================================================ */

.study-category {
    margin-bottom: 24px;

    color: var(--gold);

    font-size: 8px;

    font-weight: 400;

    letter-spacing: 0.38em;

    text-transform: uppercase;
}


/* ============================================================
   MAIN TITLE
   ============================================================ */

.study-title {
    max-width: 1100px;

    margin: 0 auto;

    font-family: var(--serif);

    font-size:
        clamp(65px, 9vw, 145px);

    font-weight: 300;

    line-height: 0.78;

    letter-spacing: -0.05em;

    text-transform: uppercase;

    text-shadow:
        0 10px 50px rgba(0, 0, 0, 0.35);
}


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

.study-subtitle {
    max-width: 650px;

    margin:
        42px auto 0;

    color: var(--ivory);

    font-family: var(--serif);

    font-size:
        clamp(20px, 2vw, 28px);

    font-weight: 300;

    line-height: 1.25;
}


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

.study-description {
    max-width: 560px;

    margin:
        22px auto 0;

    color: var(--muted);

    font-size: 12px;

    font-weight: 300;

    line-height: 1.9;
}


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

.study-actions {
    margin-top: 45px;

    display: flex;

    justify-content: center;

    align-items: center;

    gap: 30px;
}


/* ============================================================
   PRIMARY ACTION
   ENTER INVESTIGATION
   ============================================================ */

.study-action-primary {

    display: inline-flex;

    align-items: center;

    justify-content: center;

    gap: 15px;

    min-width: 170px;

    padding:
        16px 22px;

    border:
        1px solid
        rgba(214, 174, 92, 0.55);

    background:
        rgba(5, 5, 5, 0.42);

    color: var(--ivory);

    font-family: var(--sans);

    font-size: 8px;

    font-weight: 400;

    letter-spacing: 0.27em;

    text-transform: uppercase;

    cursor: pointer;

    backdrop-filter: blur(12px);

    -webkit-backdrop-filter: blur(12px);

    transition:
        background 300ms ease,
        border-color 300ms ease,
        color 300ms ease;
}

.study-action-primary span:last-child {
    color: var(--gold);

    font-size: 14px;
}

.study-action-primary:hover {

    background:
        rgba(214, 174, 92, 0.09);

    border-color:
        rgba(214, 174, 92, 0.9);

}


/* ============================================================
   SECONDARY ACTION
   VIEW RESEARCH
   ============================================================ */

.study-action-secondary {

    display: inline-flex;

    align-items: center;

    justify-content: center;

    gap: 15px;

    min-width: 150px;

    padding:
        16px 22px;

    border:
        1px solid
        rgba(238, 232, 220, 0.22);

    outline: none;

    background:
        rgba(5, 5, 5, 0.28);

    color:
        rgba(238, 232, 220, 0.62);

    font-family: var(--sans);

    font-size: 8px;

    font-weight: 400;

    letter-spacing: 0.27em;

    text-transform: uppercase;

    text-decoration: none;

    cursor: pointer;

    appearance: none;

    -webkit-appearance: none;

    backdrop-filter: blur(12px);

    -webkit-backdrop-filter: blur(12px);

    transition:
        background 300ms ease,
        border-color 300ms ease,
        color 300ms ease;
}

.study-action-secondary span {

    color: var(--gold);

    font-size: 14px;

}

.study-action-secondary:hover {

    background:
        rgba(214, 174, 92, 0.07);

    border-color:
        rgba(214, 174, 92, 0.55);

    color:
        var(--ivory);

}

.study-action-secondary:focus-visible {

    outline:
        1px solid
        rgba(214, 174, 92, 0.7);

    outline-offset: 4px;

}


/* ============================================================
   INVESTIGATION SECTION
   ============================================================ */

.study-investigation {

    position: relative;

    z-index: 10;

    min-height: 100vh;

    padding:
        150px
        clamp(25px, 9vw, 150px);

    background:
        linear-gradient(
            180deg,
            rgba(2, 2, 2, 0.38),
            rgba(2, 2, 2, 0.82)
        );
}

.study-investigation-inner {

    width:
        min(1100px, 100%);

    margin: 0 auto;
}


/* ============================================================
   INVESTIGATION EYEBROW
   ============================================================ */

.study-eyebrow {

    display: block;

    margin-bottom: 25px;

    color: var(--gold);

    font-size: 8px;

    font-weight: 400;

    letter-spacing: 0.35em;

    text-transform: uppercase;
}


/* ============================================================
   INVESTIGATION TITLE
   ============================================================ */

.study-investigation h2 {

    max-width: 1000px;

    font-family: var(--serif);

    font-size:
        clamp(55px, 7vw, 105px);

    font-weight: 300;

    line-height: 0.82;

    letter-spacing: -0.045em;

    text-transform: uppercase;
}


/* ============================================================
   INVESTIGATION GRID
   ============================================================ */

.study-investigation-grid {

    margin-top: 100px;

    display: grid;

    grid-template-columns:
        repeat(2, 1fr);

    gap: 100px;
}


/* ============================================================
   SMALL LABELS
   ============================================================ */

.study-small-label {

    display: block;

    margin-bottom: 20px;

    color: var(--gold);

    font-size: 7px;

    font-weight: 400;

    letter-spacing: 0.3em;

    text-transform: uppercase;
}


/* ============================================================
   INVESTIGATION TEXT
   ============================================================ */

.study-investigation-grid p {

    max-width: 430px;

    color: var(--muted);

    font-size: 14px;

    font-weight: 300;

    line-height: 2;
}


/* ============================================================
   DOCUMENT SECTION
   ============================================================ */

.study-document {

    margin-top: 120px;

    padding-top: 30px;

    border-top:
        1px solid
        rgba(214, 174, 92, 0.18);
}


/* ============================================================
   DOCUMENT BUTTON
   ============================================================ */

.study-document button {

    display: inline-flex;

    align-items: center;

    justify-content: center;

    gap: 15px;

    padding: 0;

    border: none;

    outline: none;

    background: transparent;

    color: var(--ivory);

    font-family: var(--sans);

    font-size: 9px;

    font-weight: 400;

    letter-spacing: 0.27em;

    text-transform: uppercase;

    cursor: pointer;

    appearance: none;

    -webkit-appearance: none;

    transition:
        color 300ms ease,
        transform 300ms ease;
}

.study-document button span {

    color: var(--gold);

    font-size: 14px;

    transition:
        transform 300ms ease;
}

.study-document button:hover {

    color: var(--gold);

}

.study-document button:hover span {

    transform:
        translate(3px, -3px);

}

.study-document button:focus-visible {

    outline:
        1px solid
        rgba(214, 174, 92, 0.7);

    outline-offset: 5px;
}


/* ============================================================
   PDF VIEWER
   ============================================================ */

.pdf-viewer {

    position: fixed;

    inset: 0;

    z-index: 1000;

    display: flex;

    align-items: center;

    justify-content: center;

    padding: 28px;

    visibility: hidden;

    opacity: 0;

    pointer-events: none;

    transition:
        opacity 350ms ease,
        visibility 350ms ease;
}


/* ============================================================
   PDF VIEWER OPEN
   ============================================================ */

.pdf-viewer.is-open {

    visibility: visible;

    opacity: 1;

    pointer-events: auto;
}


/* ============================================================
   PDF BACKDROP
   ============================================================ */

.pdf-viewer-backdrop {

    position: absolute;

    inset: 0;

    background:
        rgba(0, 0, 0, 0.88);

    backdrop-filter:
        blur(18px);

    -webkit-backdrop-filter:
        blur(18px);
}


/* ============================================================
   PDF WINDOW
   ============================================================ */

.pdf-viewer-window {

    position: relative;

    z-index: 2;

    width:
        min(1500px, 96vw);

    height:
        min(94vh, 1100px);

    display: flex;

    flex-direction: column;

    background:
        #111;

    border:
        1px solid
        rgba(214, 174, 92, 0.28);

    box-shadow:
        0 30px 100px
        rgba(0, 0, 0, 0.75);

    transform:
        translateY(20px)
        scale(0.97);

    transition:
        transform 450ms cubic-bezier(.22, 1, .36, 1);
}

.pdf-viewer.is-open
.pdf-viewer-window {

    transform:
        translateY(0)
        scale(1);
}


/* ============================================================
   PDF VIEWER HEADER
   ============================================================ */

.pdf-viewer-header {

    position: relative;

    flex-shrink: 0;

    height: 68px;

    display: flex;

    align-items: center;

    justify-content: space-between;

    padding:
        0 24px;

    border-bottom:
        1px solid
        rgba(214, 174, 92, 0.18);

    background:
        rgba(8, 8, 8, 0.96);
}


/* ============================================================
   PDF VIEWER TITLE
   ============================================================ */

.pdf-viewer-title {

    display: flex;

    flex-direction: column;

    gap: 5px;
}

.pdf-viewer-eyebrow {

    color: var(--gold);

    font-size: 7px;

    font-weight: 400;

    letter-spacing: 0.3em;

    text-transform: uppercase;
}

.pdf-viewer-name {

    color:
        rgba(238, 232, 220, 0.78);

    font-family: var(--serif);

    font-size: 17px;

    font-weight: 400;

    letter-spacing: 0.02em;

    text-transform: uppercase;
}


/* ============================================================
   PDF CLOSE BUTTON
   ============================================================ */

.pdf-viewer-close {

    position: relative;

    width: 38px;
    height: 38px;

    display: flex;

    align-items: center;

    justify-content: center;

    padding: 0;

    border:
        1px solid
        rgba(214, 174, 92, 0.25);

    border-radius: 50%;

    outline: none;

    background: transparent;

    cursor: pointer;

    transition:
        border-color 300ms ease,
        transform 400ms cubic-bezier(.22, 1, .36, 1);
}

.pdf-viewer-close:hover {

    border-color:
        rgba(214, 174, 92, 0.8);

    transform:
        rotate(90deg);
}

.pdf-viewer-close:focus-visible {

    outline:
        1px solid
        rgba(214, 174, 92, 0.7);

    outline-offset: 4px;
}

.pdf-viewer-close span {

    position: absolute;

    width: 14px;

    height: 1px;

    background:
        rgba(238, 232, 220, 0.75);
}

.pdf-viewer-close span:first-child {

    transform:
        rotate(45deg);
}

.pdf-viewer-close span:last-child {

    transform:
        rotate(-45deg);
}


/* ============================================================
   PDF CONTENT
   ============================================================ */

.pdf-viewer-content {

    position: relative;

    flex: 1;

    min-height: 0;

    width: 100%;

    background:
        #202020;

    overflow: hidden;
}

.pdf-viewer-content iframe {

    width: 100%;

    height: 100%;

    display: block;

    border: 0;

    background: white;
}


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

@media (max-width: 700px) {

    .study-nav {

        padding:
            20px;
    }

    .study-logo {

        width: 82px;
    }

    .study-nav-index {

        display: none;
    }

    .study-back {

        font-size: 7px;
    }

    .study-content {

        padding:
            140px 20px
            100px;
    }

    .study-content-inner {

        width: 100%;
    }

    .study-title {

        font-size:
            clamp(55px, 14vw, 90px);

        line-height: 0.82;
    }

    .study-subtitle {

        margin-top: 35px;

        font-size: 20px;
    }

    .study-description {

        font-size: 11px;
    }


    /* HERO BUTTONS */

    .study-actions {

        flex-direction: column;

        gap: 18px;

        margin-top: 35px;
    }

    .study-action-primary,
    .study-action-secondary {

        width: 190px;

        min-width: 190px;
    }


    /* INVESTIGATION */

    .study-investigation {

        padding:
            100px 24px;
    }

    .study-investigation h2 {

        font-size:
            clamp(50px, 13vw, 80px);
    }

    .study-investigation-grid {

        grid-template-columns: 1fr;

        gap: 60px;

        margin-top: 70px;
    }

    .study-document {

        margin-top: 90px;
    }


    /* PDF */

    .pdf-viewer {

        padding:
            10px;
    }

    .pdf-viewer-window {

        width: 100%;

        height: 96vh;
    }

    .pdf-viewer-header {

        height: 58px;

        padding:
            0 14px;
    }

    .pdf-viewer-name {

        font-size: 14px;
    }

    .pdf-viewer-close {

        width: 34px;

        height: 34px;
    }

}


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

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

    html {
        scroll-behavior: auto;
    }

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

        transition-duration:
            0.01ms !important;

        animation-duration:
            0.01ms !important;

        animation-iteration-count:
            1 !important;
    }

}

/* ============================================================
   DOAH / SYNAPTOGENESIS STUDY
   RESPONSIVE EDITORIAL SYSTEM
   TABLET → MOBILE
   ============================================================ */


/* ============================================================
   LARGE TABLET / SMALL LAPTOP
   ============================================================ */

@media (max-width: 1100px) {

    .study-content-inner {

        width:
            min(900px, 88vw);

        margin:
            0 auto;

        text-align: center;
    }


    .study-title {

        margin-left: auto;
        margin-right: auto;

        text-align: center;
    }


    .study-subtitle {

        margin-left: auto;
        margin-right: auto;

        text-align: center;
    }


    .study-description {

        margin-left: auto;
        margin-right: auto;

        text-align: center;
    }


    .study-actions {

        justify-content: center;
    }


    .study-investigation-inner {

        width:
            min(900px, 88vw);

        margin:
            0 auto;

        text-align: center;
    }


    .study-investigation h2 {

        margin-left: auto;
        margin-right: auto;

        text-align: center;
    }


    .study-investigation-grid {

        max-width: 800px;

        margin-left: auto;
        margin-right: auto;

        text-align: center;
    }


    .study-investigation-grid p {

        margin-left: auto;
        margin-right: auto;
    }


    .study-document {

        text-align: center;
    }

}


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

@media (max-width: 900px) {

    /* --------------------------------------------------------
       NAVIGATION
    -------------------------------------------------------- */

    .study-nav {

        padding:
            25px 30px;
    }


    .study-logo {

        width: 100px;
    }


    /* --------------------------------------------------------
       HERO
    -------------------------------------------------------- */

    .study-content {

        min-height: 100svh;

        padding:
            140px 30px
            110px;

        display: flex;

        align-items: center;

        justify-content: center;

        text-align: center;
    }


    .study-content-inner {

        width:
            min(760px, 88vw);

        margin:
            0 auto;

        text-align: center;
    }


    .study-category {

        text-align: center;
    }


    .study-title {

        width: 100%;

        margin:
            0 auto;

        font-size:
            clamp(58px, 9vw, 105px);

        line-height:
            0.82;

        text-align: center;
    }


    .study-subtitle {

        width:
            min(650px, 82vw);

        margin:
            40px auto 0;

        text-align: center;
    }


    .study-description {

        width:
            min(540px, 78vw);

        margin:
            22px auto 0;

        text-align: center;
    }


    /* --------------------------------------------------------
       ACTIONS
    -------------------------------------------------------- */

    .study-actions {

        display: flex;

        align-items: center;

        justify-content: center;

        margin:
            42px auto 0;

        text-align: center;
    }


    /* --------------------------------------------------------
       INVESTIGATION
    -------------------------------------------------------- */

    .study-investigation {

        padding:
            130px 40px
            100px;

        text-align: center;
    }


    .study-investigation-inner {

        width:
            min(760px, 88vw);

        margin:
            0 auto;

        text-align: center;
    }


    .study-eyebrow {

        text-align: center;
    }


    .study-investigation h2 {

        width: 100%;

        margin:
            0 auto;

        font-size:
            clamp(55px, 8vw, 90px);

        line-height:
            0.84;

        text-align: center;
    }


    /* --------------------------------------------------------
       TWO COLUMNS → CENTERED
    -------------------------------------------------------- */

    .study-investigation-grid {

        width:
            min(650px, 85vw);

        margin:
            80px auto 0;

        grid-template-columns:
            1fr;

        gap: 70px;

        text-align: center;
    }


    .study-investigation-grid > div {

        display: flex;

        flex-direction: column;

        align-items: center;

        text-align: center;
    }


    .study-small-label {

        text-align: center;
    }


    .study-investigation-grid p {

        max-width:
            550px;

        margin:
            0 auto;

        text-align: center;

        line-height:
            1.95;
    }


    /* --------------------------------------------------------
       DOCUMENT
    -------------------------------------------------------- */

    .study-document {

        width:
            min(650px, 85vw);

        margin:
            90px auto 0;

        padding-top: 30px;

        text-align: center;
    }


    .study-document .study-small-label {

        text-align: center;
    }


    .study-document button {

        margin:
            0 auto;

        justify-content: center;
    }

}


/* ============================================================
   SMALL TABLET / LARGE PHONE
   ============================================================ */

@media (max-width: 700px) {

    /* --------------------------------------------------------
       NAV
    -------------------------------------------------------- */

    .study-nav {

        padding:
            20px;
    }


    .study-logo {

        width: 88px;
    }


    .study-back {

        font-size: 7px;

        letter-spacing:
            0.18em;
    }


    .study-nav-index {

        display: none;
    }


    /* --------------------------------------------------------
       HERO
    -------------------------------------------------------- */

    .study-content {

        padding:
            125px 20px
            100px;
    }


    .study-content-inner {

        width:
            92vw;

        margin:
            0 auto;

        text-align: center;
    }


    .study-category {

        margin-bottom: 20px;

        font-size: 7px;

        letter-spacing:
            0.3em;
    }


    .study-title {

        width: 100%;

        font-size:
            clamp(48px, 13vw, 78px);

        line-height:
            0.84;

        letter-spacing:
            -0.045em;

        text-align: center;
    }


    .study-subtitle {

        width:
            min(430px, 88vw);

        margin:
            34px auto 0;

        font-size:
            19px;

        line-height:
            1.25;

        text-align: center;
    }


    .study-description {

        width:
            min(390px, 84vw);

        margin:
            20px auto 0;

        font-size:
            10px;

        line-height:
            1.8;

        text-align: center;
    }


    /* --------------------------------------------------------
       ACTIONS
    -------------------------------------------------------- */

    .study-actions {

        width: 100%;

        margin:
            34px auto 0;

        flex-direction: column;

        align-items: center;

        justify-content: center;

        gap: 14px;
    }


    .study-action-primary,
    .study-action-secondary {

        width:
            190px;

        min-width:
            190px;

        justify-content: center;

        text-align: center;
    }


    /* --------------------------------------------------------
       INVESTIGATION
    -------------------------------------------------------- */

    .study-investigation {

        padding:
            100px 22px
            85px;

        text-align: center;
    }


    .study-investigation-inner {

        width:
            100%;

        margin:
            0 auto;

        text-align: center;
    }


    .study-eyebrow {

        font-size: 7px;

        letter-spacing:
            0.28em;

        text-align: center;
    }


    .study-investigation h2 {

        width: 100%;

        font-size:
            clamp(45px, 12vw, 72px);

        line-height:
            0.86;

        letter-spacing:
            -0.04em;

        text-align: center;
    }


    /* --------------------------------------------------------
       CONTENT BLOCKS
    -------------------------------------------------------- */

    .study-investigation-grid {

        width:
            min(430px, 88vw);

        margin:
            65px auto 0;

        display: flex;

        flex-direction: column;

        align-items: center;

        gap: 55px;

        text-align: center;
    }


    .study-investigation-grid > div {

        width: 100%;

        display: flex;

        flex-direction: column;

        align-items: center;

        text-align: center;
    }


    .study-small-label {

        margin-bottom: 17px;

        font-size: 7px;

        letter-spacing:
            0.27em;

        text-align: center;
    }


    .study-investigation-grid p {

        width:
            min(390px, 86vw);

        margin:
            0 auto;

        font-size:
            11px;

        line-height:
            1.9;

        text-align: center;
    }


    /* --------------------------------------------------------
       DOCUMENT
    -------------------------------------------------------- */

    .study-document {

        width:
            min(430px, 88vw);

        margin:
            75px auto 0;

        padding-top:
            25px;

        text-align: center;
    }


    .study-document button {

        margin:
            0 auto;

        font-size:
            8px;

        text-align: center;
    }


    /* --------------------------------------------------------
       PDF VIEWER
    -------------------------------------------------------- */

    .pdf-viewer {

        padding:
            10px;
    }


    .pdf-viewer-window {

        width:
            100%;

        height:
            96svh;
    }


    .pdf-viewer-header {

        height:
            58px;

        padding:
            0 14px;
    }


    .pdf-viewer-name {

        max-width:
            70vw;

        overflow:
            hidden;

        text-overflow:
            ellipsis;

        white-space:
            nowrap;

        font-size:
            14px;
    }


    .pdf-viewer-close {

        width:
            34px;

        height:
            34px;

        flex-shrink:
            0;
    }

}


/* ============================================================
   SMALL PHONE
   ============================================================ */

@media (max-width: 480px) {

    /* --------------------------------------------------------
       HERO
    -------------------------------------------------------- */

    .study-content {

        padding:
            115px 18px
            90px;
    }


    .study-title {

        font-size:
            clamp(42px, 13vw, 64px);

        line-height:
            0.86;
    }


    .study-subtitle {

        width:
            min(350px, 88vw);

        font-size:
            18px;

        line-height:
            1.3;
    }


    .study-description {

        width:
            min(350px, 86vw);

        font-size:
            10px;

        line-height:
            1.8;
    }


    /* --------------------------------------------------------
       NAV
    -------------------------------------------------------- */

    .study-nav {

        padding:
            18px;
    }


    .study-logo {

        width:
            78px;
    }


    .study-back {

        font-size:
            6px;

        gap:
            7px;
    }


    /* --------------------------------------------------------
       INVESTIGATION
    -------------------------------------------------------- */

    .study-investigation {

        padding:
            85px 18px
            70px;
    }


    .study-investigation h2 {

        font-size:
            clamp(40px, 13vw, 58px);

        line-height:
            0.88;
    }


    .study-investigation-grid {

        width:
            100%;

        margin-top:
            55px;

        gap:
            48px;
    }


    .study-investigation-grid p {

        width:
            min(350px, 88vw);

        font-size:
            10px;

        line-height:
            1.9;
    }


    .study-document {

        width:
            100%;

        margin-top:
            65px;
    }


    .study-document button {

        font-size:
            7px;

        letter-spacing:
            0.22em;
    }


    /* --------------------------------------------------------
       PDF
    -------------------------------------------------------- */

    .pdf-viewer {

        padding:
            6px;
    }


    .pdf-viewer-window {

        height:
            97svh;
    }


    .pdf-viewer-header {

        height:
            54px;

        padding:
            0 12px;
    }


    .pdf-viewer-eyebrow {

        font-size:
            6px;
    }


    .pdf-viewer-name {

        font-size:
            12px;
    }

}


/* ============================================================
   LANDSCAPE PHONES
   ============================================================ */

@media (max-width: 900px) and (orientation: landscape) {

    .study-content {

        min-height:
            720px;

        padding:
            110px 30px
            90px;
    }


    .syn-hero {

        min-height:
            720px;
    }


    .syn-hero-content {

        padding:
            110px 0
            90px;
    }

}


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

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

    html {
        scroll-behavior:
            auto;
    }

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

        transition-duration:
            0.01ms !important;

        animation-duration:
            0.01ms !important;

        animation-iteration-count:
            1 !important;
    }

}