:root{
  --ink:#173025;
  --deep:#0d3b2c;
  --green:#275f49;
  --leaf:#86aa87;
  --mist:#eef4e9;
  --pale:#dcebd4;
  --acid:#d8e79c;
  --paper:#f8f7ef;
  --white:#fffefa;
  --rust:#9b4e31;
  --muted:#65736a;
  --line:rgba(23,48,37,.19);
  --max:1240px;
  --serif:Georgia,"Times New Roman",serif;
  --sans:Arial,"Helvetica Neue",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 var(--sans)}
img{display:block;width:100%}
a{color:inherit;text-underline-offset:.22em}
button,input{font:inherit}
p,h1,h2,h3{margin-top:0}
figure{margin:0}
h1,h2,h3{font-family:var(--serif);font-weight:400}
h2{margin-bottom:1.1rem;font-size:clamp(2.45rem,5vw,5.1rem);line-height:1;letter-spacing:-.04em}
h3{font-size:clamp(1.45rem,2.4vw,2.15rem);line-height:1.15}
.wrap{width:min(calc(100% - 3rem),var(--max));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-10000px}.skip-link:focus{left:1rem;top:1rem;z-index:200;padding:.7rem 1rem;background:#fff}
.eyebrow{margin:0 0 .8rem;color:var(--green);font-size:.68rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase}
.lede{font-family:var(--serif);font-size:clamp(1.25rem,2.1vw,1.65rem);line-height:1.45}
.quiet{color:var(--muted)}
.section-link{display:inline-block;padding-bottom:.22rem;border-bottom:1px solid currentColor;color:var(--green);font-size:.71rem;font-weight:700;letter-spacing:.11em;text-decoration:none;text-transform:uppercase}
.section-link:hover{color:var(--rust);border-bottom-color:var(--rust)}
:focus-visible{outline:3px solid var(--acid);outline-offset:4px}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(248,247,239,.97);border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(23,48,37,.06);backdrop-filter:blur(10px)}
.header-inner{min-height:74px;display:flex;align-items:center;gap:2rem}
.brand{display:inline-flex;align-items:center;gap:.72rem;margin-right:auto;font-family:var(--serif);font-size:1.05rem;letter-spacing:.18em;text-decoration:none;text-transform:uppercase}
.brand-mark{width:auto;height:2.25rem;flex:none;object-fit:contain}
.primary-nav{display:flex;gap:1.35rem}
.primary-nav a,.site-footer a{font-size:.72rem;font-weight:400;letter-spacing:.07em;text-decoration:none;text-transform:uppercase}
.primary-nav a:hover,.site-footer a:hover,.languages a:hover{text-decoration:underline}
.languages{display:flex;align-items:center;gap:.45rem}
.languages a,.languages strong{font-size:.77rem;text-decoration:none}
.menu{display:none;position:relative}
.menu summary{cursor:pointer;list-style:none;font-size:.76rem}
.menu summary::-webkit-details-marker{display:none}
.menu nav{position:absolute;right:0;top:2rem;width:220px;padding:.6rem 1rem;background:var(--paper);border:1px solid var(--line);box-shadow:0 18px 40px rgba(13,59,44,.15)}
.menu nav a{display:block;padding:.6rem 0;border-bottom:1px solid var(--line);font-size:.8rem;text-decoration:none}
.menu nav a:last-child{border:0}

/* Hero */
.hero{display:grid;grid-template-columns:.92fr 1.08fr;min-height:700px;background:var(--mist)}
.hero-copy{display:flex;flex-direction:column;justify-content:center;padding:clamp(4rem,8vw,8rem) clamp(2rem,6vw,7rem) clamp(4rem,8vw,8rem) max(1.5rem,calc((100vw - var(--max))/2))}
.hero h1{max-width:720px;margin:0 0 1.7rem;font-family:var(--serif);font-size:clamp(4.4rem,9vw,9rem);font-weight:normal;line-height:.86;letter-spacing:-.035em;color:rgba(23,48,37,.78);-webkit-font-smoothing:antialiased;-webkit-text-stroke:.25px var(--mist)}
.hero .lede{max-width:650px;margin-bottom:2rem}
.hero-actions{display:flex;gap:1.5rem;flex-wrap:wrap}
.hero-image{position:relative;min-height:620px;overflow:hidden;background:var(--deep)}
.hero-image img{height:100%;object-fit:cover;object-position:center}
.hero-image::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,59,44,.15),transparent 35%),linear-gradient(0deg,rgba(13,59,44,.7),transparent 45%)}

/* Definition and support */
.plain-intro{padding-block:clamp(3.8rem,6vw,6rem);background:var(--white)}
.intro-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:clamp(4rem,10vw,10rem)}
.intro-grid h2{font-size:clamp(2.7rem,5vw,5.4rem)}
.intro-copy{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-content:start}
.intro-copy p{margin:0;color:var(--muted);font-size:1.02rem}
.intro-copy strong{display:block;margin-bottom:.65rem;color:var(--ink);font-family:var(--serif);font-size:1.55rem;font-weight:400}
.support{background:var(--acid);border-block:1px solid var(--line)}
.support-inner{min-height:150px;display:flex;align-items:center;justify-content:space-between;gap:2rem}
.support p{margin:0}
.support .message{font-family:var(--serif);font-size:clamp(1.5rem,3vw,2.5rem)}
.button{display:inline-block;padding:.85rem 1.45rem;background:var(--deep);color:#fff;font-size:.68rem;font-weight:700;letter-spacing:.13em;text-decoration:none;text-transform:uppercase}

/* Explore */
.explore{padding-block:clamp(3.8rem,6vw,6rem);background:var(--paper)}
.section-head{display:grid;grid-template-columns:1fr .85fr;gap:4rem;align-items:end;margin-bottom:2.2rem}
.section-head p{max-width:540px;margin:0 0 .3rem;color:var(--muted)}
.routes{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--ink)}
.route{min-height:270px;padding:1.3rem 1.2rem 1.6rem 0;border-bottom:1px solid var(--line);text-decoration:none}
.route+.route{padding-left:1.2rem;border-left:1px solid var(--line)}
.route small{display:block;margin-bottom:5rem;color:var(--rust);font-size:.65rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase}
.route strong{display:block;margin-bottom:.7rem;font-family:var(--serif);font-size:1.65rem;font-weight:400}
.route span{display:block;color:var(--muted);font-size:.82rem}
.route:hover{background:var(--pale)}
.browse-panel{display:grid;grid-template-columns:.65fr 1.35fr;gap:clamp(2rem,5vw,5rem);margin-top:2.5rem;padding:clamp(1.5rem,3vw,2.6rem);background:var(--pale);border-block:1px solid var(--line)}
.browse-panel h3{max-width:390px;margin:0}
.browse-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.browse-group strong{display:block;margin-bottom:.9rem;color:var(--muted);font-size:.64rem;letter-spacing:.11em;text-transform:uppercase}
.browse-group a{display:block;width:max-content;max-width:100%;margin:.42rem 0;font-family:var(--serif);font-size:1.02rem;text-decoration-thickness:1px;text-decoration-color:transparent}
.browse-group a:hover{text-decoration-color:currentColor}

/* Full-width image dividers */
.separator{width:100%;height:clamp(72px,8vw,118px);margin:0;overflow:hidden;background:var(--deep)}
.separator img{height:100%;object-fit:cover;object-position:center 46%}
.separator.archive-strip img{object-position:center 42%;filter:saturate(.85)}
.separator.field-strip img{object-position:center 54%}

/* Featured story */
.story{padding-block:clamp(4rem,6.5vw,6.5rem);background:var(--deep);color:#eef5ec}
.story-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(4rem,9vw,9rem);align-items:center}
.story-visual{position:relative;min-height:620px;overflow:hidden}
.story-visual img{height:100%;object-fit:cover}
.story-copy .eyebrow{color:var(--acid)}
.story-copy h2{font-size:clamp(3rem,6vw,6.2rem)}
.story-copy p{max-width:570px;color:#c9d9ce}
.story-copy .section-link{color:#fff}

/* Source */
.source{padding-block:clamp(4rem,6.5vw,6.5rem);background:var(--white)}
.source-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(4rem,10vw,10rem);align-items:center}
.source-image{position:relative}
.source-image img{aspect-ratio:4/3;object-fit:cover}
.source-copy h2{font-size:clamp(2.8rem,5vw,5.3rem)}
.source-copy p{max-width:650px;color:var(--muted)}
.connections{display:flex;gap:.45rem;flex-wrap:wrap;margin:1.5rem 0 2rem}
.connections span{padding:.35rem .55rem;border:1px solid var(--line);color:var(--muted);font-size:.67rem}

/* Research */
.research{padding-block:clamp(4rem,6.5vw,6.5rem);background:var(--mist)}
.agenda{display:grid;grid-template-columns:1fr 1fr 1fr;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.agenda article{min-height:260px;padding:2rem 2rem 2rem 0}
.agenda article+article{padding-left:2rem;border-left:1px solid var(--line)}
.agenda small{color:var(--rust);font-size:.64rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.agenda h3{margin:2rem 0 .8rem}
.agenda p{margin:0;color:var(--muted);font-size:.85rem}
.dossier{display:grid;grid-template-columns:1.15fr .85fr;margin-top:3.5rem;background:var(--white);border:1px solid var(--line)}
.dossier-main{padding:clamp(2rem,5vw,5rem)}
.dossier-main h3{font-size:clamp(2.5rem,5vw,4.9rem)}
.dossier-main p{max-width:670px;color:var(--muted)}
.open-question{display:flex;flex-direction:column;justify-content:center;padding:clamp(2rem,4vw,4rem);background:var(--pale);border-left:1px solid var(--line)}
.open-question .label{align-self:flex-start;margin-bottom:2rem;padding:.35rem .55rem;border:1px solid var(--green);color:var(--green);font-size:.62rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.open-question h3{font-size:clamp(1.8rem,3vw,3rem)}
.open-question p{color:var(--muted);font-size:.88rem}

/* Updates, collaboration and about */
.updates{padding-block:clamp(4rem,6.5vw,6.5rem);background:var(--paper)}
.updates-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(3rem,9vw,9rem)}
.updates article{padding-top:1.2rem;border-top:1px solid var(--ink)}
.updates time{display:block;margin-bottom:1.8rem;color:var(--muted);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase}
.updates h3{font-size:clamp(2.1rem,4vw,3.7rem)}
.updates p{color:var(--muted)}
.collaborate{padding:clamp(2rem,4vw,4rem);background:var(--acid)!important;border:0!important}
.collaborate h3{font-size:clamp(2.2rem,4vw,3.8rem)}
.about{padding-block:clamp(4rem,6.5vw,6.5rem);background:var(--white)}
.about-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:clamp(4rem,10vw,10rem)}
.about-copy{columns:2;column-gap:3rem;color:var(--muted)}
.about-copy p{break-inside:avoid}
.about-link{display:inline-block;margin-top:1.6rem;padding:.78rem 1rem;border:1px solid var(--green);color:var(--green);font-size:.68rem;font-weight:700;letter-spacing:.11em;text-decoration:none;text-transform:uppercase}
.about-link:hover{background:var(--green);color:#fff}

/* Footer */
.site-footer{padding-block:3.5rem;background:var(--ink);color:#edf4ec}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem}
.footer-brand{font-family:var(--serif);letter-spacing:.18em;text-transform:uppercase}
.site-footer p{max-width:580px;color:#afc0b4;font-size:.8rem}
.site-footer nav{display:flex;justify-content:flex-end;align-items:flex-start;gap:1.35rem;flex-wrap:wrap}

/* Existing inner Explore pages */
.page-head{padding-block:clamp(4rem,8vw,7rem) 2rem}
.page-head h1{max-width:14ch;margin-bottom:1.2rem;font-size:clamp(3rem,6vw,6rem);line-height:.95;letter-spacing:-.04em}
.page-head .lede{max-width:820px}
.explore-section,.concepts-block{padding-block:2.5rem 5rem}
.explore-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.explore-card{min-height:240px;padding:1.35rem 1.25rem 2rem 0;border-bottom:1px solid var(--line);text-decoration:none}
.explore-card:not(:nth-child(4n+1)){padding-left:1.25rem;border-left:1px solid var(--line)}
.explore-card h3{margin:1.8rem 0 .7rem}
.explore-card p{color:var(--muted);font-size:.9rem}
.card-count{color:var(--rust);font-size:1.8rem;line-height:1}
.explore-card:hover{background:var(--pale)}
.concepts-block{border-top:1px solid var(--line)}
.section-intro{max-width:820px}
.concept-sample{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:2rem;border:1px solid var(--line);background:var(--line)}
.concept-sample a{min-height:150px;display:flex;flex-direction:column;padding:1.15rem;background:var(--paper);text-decoration:none}
.concept-sample span{display:block;margin-bottom:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:.66rem;font-weight:700}
.concept-sample strong{font-family:var(--serif);font-size:1.2rem;font-weight:400;line-height:1.25}
.concept-sample small{margin-top:auto;color:var(--muted)}

@media(max-width:980px){
  .primary-nav{display:none}.menu{display:block}
  .hero{grid-template-columns:1fr}
  .hero-copy{padding-left:max(1.5rem,calc((100vw - var(--max))/2))}
  .hero-image{min-height:520px}
  .intro-grid,.story-grid,.source-grid,.about-grid{grid-template-columns:1fr}
  .intro-copy{max-width:850px}
  .routes{grid-template-columns:repeat(2,1fr)}
  .route:nth-child(3){padding-left:0;border-left:0}
  .browse-panel{grid-template-columns:1fr}
  .agenda{grid-template-columns:1fr}
  .agenda article,.agenda article+article{min-height:0;padding:2rem 0;border-left:0;border-bottom:1px solid var(--line)}
  .agenda article:last-child{border-bottom:0}
  .dossier{grid-template-columns:1fr}
  .open-question{border-left:0;border-top:1px solid var(--line)}
  .story-visual{min-height:570px}
  .about-copy{columns:1}
  .explore-grid,.concept-sample{grid-template-columns:repeat(2,1fr)}
  .explore-card:not(:nth-child(4n+1)){padding-left:0;border-left:0}
  .explore-card:nth-child(even){padding-left:1.25rem;border-left:1px solid var(--line)}
}

@media(max-width:680px){
  .wrap{width:min(calc(100% - 1.3rem),var(--max))}
  .header-inner{min-height:62px;gap:.75rem}
  .brand{font-size:.9rem;gap:.55rem}.brand-mark{height:2rem}
  .languages span,.languages strong{display:none}
  .hero{min-height:0}.hero-copy{padding:4.5rem .65rem}
  .hero h1{font-size:clamp(4rem,21vw,6.2rem)}
  .hero-image{min-height:430px}
  .intro-grid{gap:2.5rem}.intro-copy{grid-template-columns:1fr;gap:2rem}
  .support-inner{align-items:flex-start;flex-direction:column;padding-block:2rem}
  .button{width:100%;text-align:center}
  .section-head{grid-template-columns:1fr;gap:1.5rem}
  .routes{grid-template-columns:1fr}
  .route,.route+.route,.route:nth-child(3){min-height:0;padding:1.3rem 0;border-left:0}
  .route small{margin-bottom:1.5rem}
  .browse-groups{grid-template-columns:1fr;gap:1.4rem}
  .story-visual{min-height:520px}.story-grid{gap:3rem}
  .dossier-main,.open-question{padding:2rem 1.2rem}
  .updates-grid,.footer-grid{grid-template-columns:1fr;gap:2.5rem}
  .site-footer nav{justify-content:flex-start}
  .explore-grid,.concept-sample{grid-template-columns:1fr}
  .explore-card,.explore-card:nth-child(even),.explore-card:not(:nth-child(4n+1)){min-height:0;padding:1.25rem 0;border-left:0}
}