@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap");

:root{
    --paper:#f4f1e9;
    --paper-2:#eeece5;
    --white:#ffffff;
    --navy:#071b3d;
    --navy-2:#0a234b;
    --ink:#0b1423;
    --muted:#707a86;
    --line:#c9ced2;
    --line-dark:#31415b;
    --accent:#17376e;
    --green:#2f6d53;
    --max:1240px;
}

*{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:Inter,Arial,sans-serif;
    font-size:15px;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
}

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

img{max-width:100%;display:block}

.container{
    width:min(var(--max),calc(100% - 64px));
    margin:0 auto;
}

.site-header{
    position:relative;
    z-index:50;
    background:rgba(244,241,233,.98);
    border-bottom:1px solid var(--line);
}

.system-bar{
    height:30px;
    padding:0 28px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    background:var(--navy);
    color:#d9e2f0;
    font-size:9px;
    font-weight:700;
    letter-spacing:.16em;
    text-transform:uppercase;
}

.system-location{
    display:flex;
    align-items:center;
    gap:12px;
}

.system-location span{opacity:.45}

.navigation{
    min-height:86px;
    padding:0 28px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:30px;
}

.brand {
    width: 190px;
    height: 70px;

    display: flex;
    align-items: center;
}

.brand img {
    width: 175px;
    height: 64px;

    max-width: 175px;
    max-height: 64px;

    object-fit: contain;
    object-position: left center;
}

.main-nav{
    display:flex;
    align-items:center;
    gap:31px;
}

.main-nav a{
    position:relative;
    padding:31px 0 27px;
    font-size:11px;
    font-weight:600;
    color:#202a38;
}

.main-nav a::after{
    content:"";
    position:absolute;
    left:0;
    right:0;
    bottom:18px;
    height:2px;
    background:var(--navy);
    transform:scaleX(0);
    transform-origin:center;
    transition:transform .2s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after{transform:scaleX(1)}

.mobile-menu{display:none}

.reading-progress{
    position:fixed;
    top:0;
    left:0;
    width:0;
    height:2px;
    background:#315f9f;
    z-index:100;
}

section{overflow:hidden}

.research-hero{
    padding:82px 0 88px;
    border-bottom:1px solid var(--line);
}

.section-code{
    color:var(--accent);
    font-size:10px;
    line-height:1;
    font-weight:800;
    letter-spacing:.2em;
    text-transform:uppercase;
}

.light-code{color:#aebfdd}

.hero-grid{
    margin-top:54px;
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(420px,1fr);
    gap:70px;
    align-items:center;
}

.classification{
    margin-bottom:22px;
    color:#526176;
    font-size:10px;
    font-weight:800;
    letter-spacing:.18em;
    text-transform:uppercase;
}

h1,h2,h3,p{margin-top:0}

h1{
    max-width:700px;
    margin-bottom:28px;
    font-size:clamp(60px,7vw,104px);
    line-height:.9;
    letter-spacing:-.065em;
    font-weight:900;
}

h1 span,
h2 span{
    display:block;
    color:#7d8792;
}

.lead{
    max-width:650px;
    color:#35465d;
    font-size:17px;
    line-height:1.9;
}

.research-index{
    min-height:530px;
    border:1px solid #b9c1c9;
    background:#f7f5ef;
}

.index-header{
    height:40px;
    padding:0 16px;
    border-bottom:1px solid #cbd0d4;
    display:flex;
    align-items:center;
    justify-content:space-between;
    color:#536274;
    font-size:9px;
    font-weight:800;
    letter-spacing:.18em;
}

.index-body{
    position:relative;
    height:488px;
    overflow:hidden;
    background-image:
        linear-gradient(rgba(23,55,110,.08) 1px,transparent 1px),
        linear-gradient(90deg,rgba(23,55,110,.08) 1px,transparent 1px);
    background-size:44px 44px;
}

.axis{
    position:absolute;
    background:#b7c2cd;
    opacity:.65;
}

.axis.horizontal{
    left:7%;
    right:7%;
    top:50%;
    height:1px;
}

.axis.vertical{
    top:7%;
    bottom:7%;
    left:50%;
    width:1px;
}

.orbit{
    position:absolute;
    left:50%;
    top:50%;
    border:1px solid #c5cdd4;
    border-radius:50%;
    transform:translate(-50%,-50%);
}

.orbit-a{width:350px;height:350px}
.orbit-b{width:250px;height:250px;border-style:dashed}

.research-core{
    position:absolute;
    left:50%;
    top:50%;
    width:170px;
    height:170px;
    transform:translate(-50%,-50%);
    border-radius:50%;
    background:var(--navy);
    color:white;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    box-shadow:0 0 0 14px rgba(7,27,61,.04);
}

.research-core small,
.research-core em{
    font-size:8px;
    font-style:normal;
    letter-spacing:.16em;
    color:#9eb3d0;
}

.research-core strong{
    margin:6px 0;
    font-size:26px;
    letter-spacing:-.04em;
}

.research-node{
    position:absolute;
    width:112px;
    height:112px;
    border:1px solid #aebbc8;
    border-radius:50%;
    background:rgba(247,245,239,.92);
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    text-align:center;
}

.research-node span{
    font-size:8px;
    color:#748399;
    margin-bottom:4px;
}

.research-node strong{
    font-size:9px;
    letter-spacing:.12em;
}

.node-a{top:30px;left:50%;transform:translateX(-50%)}
.node-b{right:34px;top:50%;transform:translateY(-50%)}
.node-c{bottom:30px;left:50%;transform:translateX(-50%)}
.node-d{left:34px;top:50%;transform:translateY(-50%)}

.section{
    padding:110px 0;
}

.light{background:var(--paper)}

.navy{
    background:var(--navy);
    color:white;
}

.statement-grid{
    margin-top:50px;
    display:grid;
    grid-template-columns:minmax(0,1.1fr) minmax(300px,.7fr);
    gap:90px;
    align-items:start;
}

h2{
    margin-bottom:0;
    font-size:clamp(48px,6vw,84px);
    line-height:.95;
    letter-spacing:-.06em;
    font-weight:900;
}

.statement-copy{
    padding-top:8px;
    color:#536175;
    font-size:15px;
}

.statement-copy p+p{margin-top:24px}

.research-principles{
    margin-top:80px;
    border-top:1px solid var(--line);
    border-left:1px solid var(--line);
    display:grid;
    grid-template-columns:repeat(3,1fr);
}

.research-principles article{
    min-height:190px;
    padding:25px;
    border-right:1px solid var(--line);
    border-bottom:1px solid var(--line);
}

.research-principles span,
.discipline>span{
    display:block;
    margin-bottom:25px;
    color:#718096;
    font-size:9px;
    letter-spacing:.14em;
}

.research-principles strong{
    display:block;
    font-size:12px;
    letter-spacing:.12em;
}

.research-principles p{
    margin:12px 0 0;
    color:#667386;
    font-size:12px;
}

.dark-heading{
    margin-top:48px;
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(280px,.55fr);
    gap:80px;
    align-items:start;
}

.dark-heading h2{color:white}

.dark-heading p{
    color:#b5c0d0;
    padding-top:10px;
}

.discipline-grid{
    margin-top:80px;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    border-top:1px solid var(--line-dark);
    border-left:1px solid var(--line-dark);
}

.discipline{
    min-height:300px;
    padding:30px;
    border-right:1px solid var(--line-dark);
    border-bottom:1px solid var(--line-dark);
}

.discipline.featured{
    background:#0c2855;
}

.discipline h3{
    max-width:300px;
    margin-bottom:18px;
    font-size:27px;
    line-height:1.05;
    letter-spacing:-.04em;
}

.discipline p{
    color:#aebbd0;
    font-size:13px;
    line-height:1.75;
}

.discipline small{
    display:block;
    margin-top:30px;
    color:#8298b6;
    font-size:8px;
    line-height:1.6;
    letter-spacing:.15em;
}

.cross-heading{
    margin-top:50px;
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(300px,.55fr);
    gap:90px;
}

.cross-heading p{
    color:#59687a;
    padding-top:10px;
}

.domain-research{
    margin-top:70px;
    border-top:1px solid var(--line);
}

.domain-research-row{
    display:grid;
    grid-template-columns:70px 220px minmax(0,1fr) 150px;
    gap:28px;
    align-items:center;
    min-height:170px;
    padding:25px 0;
    border-bottom:1px solid var(--line);
    transition:background .2s ease,padding .2s ease;
}

.domain-research-row:hover{
    background:#eeece5;
    padding-left:20px;
    padding-right:20px;
}

.domain-research-row .number{
    color:#778394;
    font-size:10px;
    letter-spacing:.12em;
}

.domain-research-row small{
    color:#738093;
    font-size:8px;
    letter-spacing:.16em;
    font-weight:800;
}

.domain-research-row h3{
    margin:8px 0 0;
    font-size:31px;
    letter-spacing:-.045em;
}

.domain-research-row p{
    margin:0;
    color:#59677a;
    font-size:13px;
}

.domain-research-row strong{
    text-align:right;
    font-size:9px;
    letter-spacing:.12em;
    color:var(--navy);
}

.research-method{
    border-top:1px solid #112d57;
}

.method-heading{
    margin-top:50px;
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(280px,.55fr);
    gap:90px;
}

.method-heading p{
    color:#b8c4d4;
    padding-top:10px;
}

.method-flow{
    margin-top:80px;
    display:grid;
    grid-template-columns:1fr 28px 1fr 28px 1fr 28px 1.2fr 28px 1fr 28px 1fr 28px 1fr;
    align-items:stretch;
    border-top:1px solid #2a3e5d;
    border-left:1px solid #2a3e5d;
}

.method-flow>div{
    min-height:155px;
    padding:22px 15px;
    border-right:1px solid #2a3e5d;
    border-bottom:1px solid #2a3e5d;
    display:flex;
    flex-direction:column;
}

.method-flow>div span{
    color:#7f98ba;
    font-size:8px;
    margin-bottom:28px;
}

.method-flow>div strong{
    font-size:10px;
    letter-spacing:.1em;
}

.method-flow>div small{
    margin-top:auto;
    color:#8495ad;
    font-size:9px;
    line-height:1.5;
}

.method-flow>i{
    display:flex;
    align-items:center;
    justify-content:center;
    border-right:1px solid #2a3e5d;
    border-bottom:1px solid #2a3e5d;
    color:#8094b1;
    font-style:normal;
}

.method-flow .current{
    background:#17376e;
}

.foundation-grid{
    margin-top:50px;
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(300px,.7fr);
    gap:90px;
}

.foundation-copy{
    color:#566477;
    padding-top:8px;
}

.foundation-list{
    margin-top:35px;
    display:flex;
    flex-wrap:wrap;
    gap:8px;
}

.foundation-list span{
    padding:8px 10px;
    border:1px solid #c4cad0;
    color:#5f6d7f;
    font-size:8px;
    letter-spacing:.12em;
}

.final-section{
    padding:125px 0;
    background:#0a1e40;
    color:white;
    text-align:center;
}

.final-code{
    color:#9fb3cf;
    font-size:9px;
    font-weight:800;
    letter-spacing:.2em;
}

.final-section h2{
    max-width:900px;
    margin:35px auto 0;
}

.final-section h2 span{color:#8498b5}

.final-domains{
    margin-top:45px;
    color:#b6c5d9;
    font-size:10px;
    font-weight:700;
    letter-spacing:.18em;
}

.final-domains span{
    margin:0 16px;
    color:#607897;
}

.site-footer{
    background:#061833;
    color:#aebed2;
    border-top:1px solid #213554;
}

.footer-main{
    padding:70px 0 65px;
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1.2fr;
    gap:50px;
}

.footer-identity img{
    width:150px;
    background:white;
    padding:10px;
}

.footer-identity p{
    max-width:290px;
    margin-top:25px;
    color:#9caec5;
    font-size:12px;
}

.footer-column{
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    gap:11px;
}

.footer-column label{
    margin-bottom:10px;
    color:#6f8bab;
    font-size:8px;
    font-weight:800;
    letter-spacing:.18em;
}

.footer-column a,
.footer-column span{
    color:#b5c4d7;
    font-size:11px;
}

.footer-column a:hover{color:white}

.footer-bottom{
    padding:20px 0;
    border-top:1px solid #213554;
    display:flex;
    justify-content:space-between;
    color:#7188a5;
    font-size:9px;
    letter-spacing:.08em;
}

@media (max-width:1050px){
    .hero-grid,
    .statement-grid,
    .dark-heading,
    .cross-heading,
    .method-heading,
    .foundation-grid{
        grid-template-columns:1fr;
        gap:45px;
    }

    .research-index{max-width:760px}

    .discipline-grid{grid-template-columns:repeat(2,1fr)}

    .method-flow{
        display:grid;
        grid-template-columns:repeat(2,1fr);
    }

    .method-flow>i{display:none}

    .domain-research-row{
        grid-template-columns:55px 180px 1fr;
    }

    .domain-research-row strong{display:none}
}

@media (max-width:760px){
    .container{width:min(100% - 36px,var(--max))}

    .system-bar{
        height:auto;
        min-height:34px;
        padding:8px 18px;
        gap:8px;
        font-size:7px;
    }

    .system-location{gap:7px}

    .navigation{
        min-height:72px;
        padding:0 18px;
    }

    .brand{width:95px;flex-basis:95px}
    .brand img{width:95px}

    .mobile-menu{
        display:flex;
        width:40px;
        height:40px;
        border:1px solid #b8c0c8;
        background:transparent;
        flex-direction:column;
        align-items:center;
        justify-content:center;
        gap:6px;
    }

    .mobile-menu span{
        width:17px;
        height:1px;
        background:var(--ink);
    }

    .main-nav{
        position:absolute;
        top:106px;
        left:18px;
        right:18px;
        padding:15px 18px;
        background:var(--paper);
        border:1px solid var(--line);
        display:none;
        flex-direction:column;
        align-items:flex-start;
        gap:0;
    }

    .main-nav.open{display:flex}

    .main-nav a{
        width:100%;
        padding:12px 0;
    }

    .main-nav a::after{
        bottom:4px;
        transform-origin:left;
    }

    .research-hero{padding:55px 0 65px}

    .hero-grid{margin-top:38px}

    h1{font-size:clamp(54px,16vw,82px)}

    h2{font-size:clamp(42px,13vw,64px)}

    .research-index{min-height:420px}

    .index-body{height:378px}

    .orbit-a{width:280px;height:280px}
    .orbit-b{width:195px;height:195px}

    .research-core{width:135px;height:135px}
    .research-core strong{font-size:22px}

    .research-node{
        width:88px;
        height:88px;
    }

    .node-a{top:20px}
    .node-c{bottom:20px}
    .node-b{right:14px}
    .node-d{left:14px}

    .section{padding:75px 0}

    .research-principles{grid-template-columns:1fr}

    .discipline-grid{grid-template-columns:1fr}

    .discipline{min-height:260px}

    .domain-research-row{
        grid-template-columns:40px 1fr;
        gap:15px;
        padding:25px 0;
    }

    .domain-research-row p{
        grid-column:2;
    }

    .method-flow{grid-template-columns:1fr}

    .method-flow>div{min-height:125px}

    .footer-main{
        grid-template-columns:1fr 1fr;
        gap:35px 25px;
    }

    .footer-identity{grid-column:1/-1}

    .footer-bottom{
        flex-direction:column;
        gap:8px;
    }
}

@media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    *{transition:none!important}
}