:root{
  --ink:#14223a;
  --text:#37445a;
  --muted:#778195;
  --line:#e8e5df;
  --paper:#fbfaf8;
  --white:#fff;
  --sage:#60786f;
  --lilac:#786886;
  --shadow:0 18px 50px rgba(31,41,58,.08);
}

*{box-sizing:border-box}

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

button,input{
  font:inherit;
}

.hidden{
  display:none!important;
}


/* =====================================================
   HEADER
   ===================================================== */

.site-header{
  height:78px;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:28px;
  padding:0 clamp(38px,5.4vw,84px);
  border-bottom:1px solid var(--line);
  background:rgba(251,250,248,.92);
  backdrop-filter:blur(16px);
  position:sticky;
  top:0;
  z-index:30;
}

.brand{
  display:flex;
  flex-direction:column;
  text-decoration:none;
  color:var(--ink);
  width:max-content;
}

.brand-name{
  font-family:Georgia,"Times New Roman",serif;
  font-size:29px;
  line-height:1;
  font-weight:500;
  letter-spacing:-.025em;
}

.brand-subtitle{
  font-family:Georgia,"Times New Roman",serif;
  font-size:8px;
  letter-spacing:.27em;
  text-transform:uppercase;
  color:#7a8497;
  margin-top:7px;
}

.main-nav{
  display:flex;
  align-items:stretch;
  gap:36px;
  height:100%;
}

.main-nav a{
  display:flex;
  align-items:center;
  text-decoration:none;
  color:#28364d;
  font-size:14px;
  border-bottom:2px solid transparent;
  padding:0 2px;
}

.main-nav a:hover,
.main-nav a.active{
  border-bottom-color:#26364f;
}


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

.hero{
  max-width:1510px;
  margin:0 auto;
  display:grid;
  grid-template-columns:minmax(500px,.9fr) minmax(620px,1.1fr);
  align-items:center;
  gap:18px;
  padding:44px clamp(38px,5.4vw,84px) 30px;
  min-height:500px;
}

.hero-copy{
  position:relative;
  z-index:2;
  padding-bottom:10px;
}

.eyebrow{
  font-size:10px;
  letter-spacing:.3em;
  font-weight:800;
  color:#53637d;
  margin-bottom:12px;
}

.hero h1{
  margin:0;
  font-family:Georgia,"Times New Roman",serif;
  font-weight:500;
  font-size:clamp(66px,6vw,98px);
  line-height:.92;
  letter-spacing:-.055em;
  color:#101e33;
}

.hero-tagline{
  margin:17px 0 13px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:clamp(29px,2.45vw,40px);
  line-height:1.08;
  letter-spacing:-.025em;
  color:#5a667c;
}

.hero-lead{
  max-width:600px;
  margin:0;
  color:#5f6b80;
  font-size:18px;
  line-height:1.65;
}

.domain-row{
  display:flex;
  align-items:center;
  gap:38px;
  margin-top:30px;
  flex-wrap:nowrap;
}

.domain-item{
  display:grid;
  grid-template-columns:38px auto;
  align-items:center;
  gap:10px;
  min-width:0;
}

.domain-icon{
  width:36px;
  height:36px;
  border:1px solid #9ca8b8;
  border-radius:50%;
  display:grid;
  place-items:center;
  color:#50627c;
  font-family:Georgia,serif;
  font-size:20px;
}

.domain-item strong{
  display:block;
  font-size:10px;
  letter-spacing:.18em;
  color:#465673;
}

.domain-item small{
  display:block;
  font-size:12px;
  color:#7d8797;
  margin-top:1px;
}

.hero-art{
  min-width:0;
  display:grid;
  place-items:center;
  align-self:stretch;
}

.hero-art svg{
  width:100%;
  max-width:820px;
  height:auto;
  display:block;
}


/* =====================================================
   ABOUT
   ===================================================== */

.about-section{
  max-width:1510px;
  margin:0 auto;
  padding:68px clamp(38px,5.4vw,84px) 78px;
  border-top:1px solid var(--line);
}

.about-kicker{
  margin-bottom:30px;
  color:#596a84;
  font-size:10px;
  font-weight:800;
  letter-spacing:.3em;
}

.about-grid{
  display:grid;
  grid-template-columns:minmax(300px,.8fr) minmax(500px,1.2fr);
  gap:clamp(60px,8vw,140px);
  align-items:start;
}

.about-heading h2{
  max-width:460px;
  margin:0;
  color:var(--ink);
  font-family:Georgia,"Times New Roman",serif;
  font-size:clamp(42px,4vw,62px);
  line-height:1;
  font-weight:500;
  letter-spacing:-.04em;
}

.about-highlight{
  max-width:410px;
  margin:28px 0 0;
  color:#6d7383;
  font-family:Georgia,"Times New Roman",serif;
  font-size:21px;
  line-height:1.45;
  font-style:italic;
}

.about-copy{
  max-width:720px;
  padding-top:3px;
}

.about-copy p{
  margin:0 0 20px;
  color:#586579;
  font-size:16px;
  line-height:1.8;
}

.about-copy p:first-child{
  color:#3c4a60;
  font-size:17px;
}

.about-copy strong{
  color:#1e2d45;
  font-weight:700;
}

.about-principles{
  display:flex;
  align-items:center;
  gap:0;
  margin-top:34px;
  padding-top:21px;
  border-top:1px solid var(--line);
}

.about-principles span{
  color:#53637b;
  font-size:11px;
  font-weight:750;
  letter-spacing:.16em;
  text-transform:uppercase;
}

.about-principles span:not(:last-child)::after{
  content:"";
  display:inline-block;
  width:3px;
  height:3px;
  margin:0 19px 3px;
  border-radius:50%;
  background:#a7adb6;
}


/* =====================================================
   STUDIES
   ===================================================== */

.studies-section{
  max-width:1510px;
  margin:0 auto;
  padding:55px clamp(38px,5.4vw,84px) 60px;
}

.section-heading{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  padding-top:25px;
  border-top:1px solid var(--line);
  margin-bottom:20px;
}

.section-heading h2{
  margin:0 0 5px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:39px;
  font-weight:600;
  letter-spacing:-.025em;
  color:var(--ink);
}

.section-heading p{
  margin:0;
  color:#788194;
  font-size:14px;
}

.search-box{
  width:min(330px,100%);
  height:44px;
  border:1px solid #dddfe4;
  border-radius:13px;
  background:#fff;
  display:flex;
  align-items:center;
  gap:9px;
  padding:0 14px;
  color:#6c7789;
  box-shadow:0 6px 18px rgba(34,43,58,.025);
}

.search-box input{
  border:0;
  outline:0;
  background:transparent;
  width:100%;
  color:#344057;
}

.search-box input::placeholder{
  color:#a0a5af;
}

.study-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  align-items:stretch;
}

.loading-card,
.empty-card{
  grid-column:1/-1;
  padding:25px;
  border:1px solid var(--line);
  border-radius:18px;
  background:#fff;
  color:#788194;
}

.study-card{
  min-width:0;
  background:#fff;
  border:1px solid #e4e0da;
  border-radius:16px;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:0 4px 20px rgba(34,42,55,.035);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}

.study-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow);
  border-color:#d9d3cb;
}

.study-visual{
  height:112px;
  position:relative;
  overflow:hidden;
  border-bottom:1px solid #ece8e3;
  background:linear-gradient(120deg,#f5f0f3,#f8f6f3);
}

.study-card[data-kind="visual"] .study-visual{
  background:linear-gradient(120deg,#eef3ef,#f7f6f2);
}

.study-card[data-kind="fixedset"] .study-visual{
  background:linear-gradient(120deg,#f3eef6,#f8f4f2);
}

.audio-visual{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  opacity:.55;
}

.audio-visual i{
  display:block;
  width:1px;
  background:#7f7395;
  border-radius:3px;
}

.audio-visual i:nth-child(1),
.audio-visual i:nth-child(9){
  height:18px;
}

.audio-visual i:nth-child(2),
.audio-visual i:nth-child(8){
  height:34px;
}

.audio-visual i:nth-child(3),
.audio-visual i:nth-child(7){
  height:55px;
}

.audio-visual i:nth-child(4),
.audio-visual i:nth-child(6){
  height:76px;
}

.audio-visual i:nth-child(5){
  height:92px;
}

.line-visual{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:26px;
}

.line-visual i{
  width:1px;
  background:#657b73;
}

.line-visual i:nth-child(1),
.line-visual i:nth-child(7){
  height:27px;
}

.line-visual i:nth-child(2),
.line-visual i:nth-child(6){
  height:47px;
}

.line-visual i:nth-child(3),
.line-visual i:nth-child(5){
  height:68px;
}

.line-visual i:nth-child(4){
  height:88px;
}

.circle-visual:before,
.circle-visual:after{
  content:"";
  position:absolute;
  width:82px;
  height:82px;
  border-radius:50%;
  top:15px;
}

.circle-visual:before{
  left:calc(50% - 62px);
  background:#9686a7;
  opacity:.58;
}

.circle-visual:after{
  left:calc(50% - 5px);
  border:1.3px solid #726582;
  background:transparent;
}

.general-visual{
  position:absolute;
  inset:0;
  display:flex;
  justify-content:center;
  align-items:center;
  gap:18px;
}

.general-visual i{
  width:28px;
  height:28px;
  border-radius:50%;
  border:1px solid #8290a2;
}

.general-visual i:nth-child(2){
  width:42px;
  height:42px;
  background:#aab8b3;
  opacity:.4;
}

.study-body{
  padding:17px 19px 19px;
  display:flex;
  flex-direction:column;
  flex:1;
  min-height:208px;
}

.study-category{
  font-size:9px;
  letter-spacing:.2em;
  font-weight:800;
  color:#596a84;
  margin-bottom:9px;
}

.study-card h3{
  margin:0 0 8px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:22px;
  line-height:1.15;
  font-weight:600;
  letter-spacing:-.018em;
  color:#132139;
}

.study-description{
  margin:0 0 18px;
  color:#778193;
  font-size:13px;
  line-height:1.5;
  flex:1;
}

.study-action{
  align-self:flex-start;
  min-height:42px;
  padding:0 17px;
  border-radius:11px;
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:#fff;
  background:#1d2a41;
  font-size:13px;
  font-weight:750;
}

.study-card[data-kind="visual"] .study-action{
  background:var(--sage);
}

.study-card[data-kind="fixedset"] .study-action{
  background:var(--lilac);
}

.study-action:hover{
  filter:brightness(.94);
}


/* =====================================================
   RESEARCH PRINCIPLES
   ===================================================== */

.trust-strip{
  max-width:1510px;
  margin:0 auto;
  padding:30px clamp(38px,5.4vw,84px) 32px;
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
}

.trust-strip article{
  display:grid;
  grid-template-columns:34px 1fr;
  gap:12px;
  padding:4px 23px;
  border-right:1px solid #e6e2dc;
}

.trust-strip article:first-child{
  padding-left:0;
}

.trust-strip article:last-child{
  padding-right:0;
  border-right:0;
}

.trust-icon{
  font-family:Georgia,serif;
  font-size:23px;
  color:#2e405c;
}

.trust-strip strong{
  display:block;
  color:#1f2f48;
  font-size:13px;
}

.trust-strip p{
  margin:5px 0 0;
  color:#7c8492;
  font-size:11.5px;
  line-height:1.45;
}


/* =====================================================
   FOOTER
   ===================================================== */

.site-footer{
  border-top:1px solid var(--line);
  padding:20px clamp(38px,5.4vw,84px);
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:18px;
  background:#fbfaf8;
  color:#707a8b;
  font-size:11.5px;
}

.site-footer strong{
  font-family:Georgia,serif;
  color:#1c2c45;
  font-size:16px;
}

.site-footer em{
  justify-self:end;
  font-family:Georgia,serif;
  color:#7a7380;
}


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

@media(max-width:1150px){

  .site-header{
    grid-template-columns:1fr auto;
  }

  .main-nav{
    display:none;
  }

  .hero{
    grid-template-columns:1fr;
    min-height:auto;
    padding-top:48px;
  }

  .hero-copy{
    max-width:760px;
  }

  .hero-art{
    margin-top:-38px;
  }

  .about-grid{
    grid-template-columns:1fr;
    gap:36px;
  }

  .about-heading h2{
    max-width:700px;
  }

  .about-highlight{
    max-width:650px;
  }

  .about-copy{
    max-width:800px;
  }

  .study-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }

  .trust-strip{
    grid-template-columns:repeat(2,minmax(0,1fr));
    row-gap:24px;
  }

  .trust-strip article:nth-child(2){
    border-right:0;
  }

  .site-footer{
    grid-template-columns:1fr auto;
  }

  .site-footer em{
    display:none;
  }
}


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

@media(max-width:720px){

  .site-header{
    height:auto;
    min-height:70px;
    padding:11px 18px;
    display:flex;
    justify-content:flex-start;
  }

  .brand-name{
    font-size:23px;
  }

  .brand-subtitle{
    display:none;
  }

  .hero{
    padding:31px 20px 25px;
  }

  .hero h1{
    font-size:52px;
  }

  .hero-tagline{
    font-size:27px;
  }

  .hero-lead{
    font-size:16px;
  }

  .domain-row{
    gap:17px;
    overflow-x:auto;
    padding-bottom:4px;
  }

  .domain-item{
    grid-template-columns:31px auto;
  }

  .domain-icon{
    width:30px;
    height:30px;
    font-size:17px;
  }

  .hero-art{
    display:none;
  }

  .about-section{
    padding:48px 20px 55px;
  }

  .about-kicker{
    margin-bottom:22px;
  }

  .about-grid{
    grid-template-columns:1fr;
    gap:30px;
  }

  .about-heading h2{
    font-size:39px;
  }

  .about-highlight{
    margin-top:20px;
    font-size:19px;
  }

  .about-copy p{
    font-size:15px;
    line-height:1.75;
  }

  .about-copy p:first-child{
    font-size:16px;
  }

  .about-principles{
    flex-wrap:wrap;
    row-gap:12px;
  }

  .about-principles span{
    font-size:9.5px;
  }

  .about-principles span:not(:last-child)::after{
    margin-left:12px;
    margin-right:12px;
  }

  .studies-section{
    padding:35px 20px 38px;
  }

  .section-heading{
    display:block;
  }

  .section-heading h2{
    font-size:33px;
  }

  .search-box{
    margin-top:16px;
    width:100%;
  }

  .study-grid{
    grid-template-columns:1fr;
  }

  .trust-strip{
    grid-template-columns:1fr;
    padding:23px 20px;
  }

  .trust-strip article,
  .trust-strip article:first-child,
  .trust-strip article:last-child{
    border-right:0;
    border-bottom:1px solid #e6e2dc;
    padding:14px 0;
  }

  .trust-strip article:last-child{
    border-bottom:0;
  }

  .site-footer{
    grid-template-columns:1fr;
    padding:19px 20px;
  }

  .site-footer span{
    display:none;
  }
}


@media(prefers-reduced-motion:reduce){
  html{
    scroll-behavior:auto;
  }

  .study-card{
    transition:none;
  }
}