:root {
    --plaster: #E9ECE5;      /* lime plaster: page */
    --specimen: #F7F8F4;     /* specimen white: raised surfaces */
    --moss: #1D2B23;         /* moss ink: text */
    --lichen: #5A6A5C;       /* lichen: secondary text */
    --rule: #C5CCC2;         /* hairlines */
    --ochre: #B07D1F;        /* raw earth pigment: the loop, accents */
    --ochre-ink: #7E5810;    /* ochre dark enough for small text */
    --earth: #8A5A3C;
    --straw: #C9B27A;
    --myc: #EFEBDF;
    --display: "Bricolage Grotesque", system-ui, sans-serif;
    --serif: "Source Serif 4", Georgia, serif;
    --gutter: clamp(16px, 4vw, 56px);
    --max: 1240px;
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --plaster: #141C17; --specimen: #1B241F; --moss: #E3E8E0; --lichen: #9AA89B;
      --rule: #2F3B33; --ochre: #D3A13E; --ochre-ink: #E2B65C; --myc: #CFC9B8;
    }
  }
  :root[data-theme="dark"] {
    --plaster: #141C17; --specimen: #1B241F; --moss: #E3E8E0; --lichen: #9AA89B;
    --rule: #2F3B33; --ochre: #D3A13E; --ochre-ink: #E2B65C; --myc: #CFC9B8;
  }

  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    background: var(--plaster);
    color: var(--moss);
    font-family: var(--serif);
    font-size: 1.125rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  a { color: inherit; text-decoration-color: var(--ochre); text-decoration-thickness: 2px; text-underline-offset: 3px; }
  a:hover { color: var(--ochre-ink); }
  :focus-visible { outline: 3px solid var(--ochre); outline-offset: 3px; border-radius: 2px; }
  .wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
  h2, h3, .ui { font-family: var(--display); }
  h2 {
    font-size: clamp(1.9rem, 4vw, 3rem);
    font-weight: 700;
    font-variation-settings: "wdth" 85;
    line-height: 1.05;
    letter-spacing: -0.01em;
    margin: 0 0 1.5rem;
  }
  h3 { font-size: 1.25rem; font-weight: 650; line-height: 1.25; margin: 0 0 .4rem; }
  p { margin: 0 0 1rem; max-width: 66ch; }
  section { padding: clamp(64px, 10vw, 128px) 0; border-top: 1px solid var(--rule); }

  /* Header */
  header.site {
    position: sticky; top: 0; z-index: 10;
    background: color-mix(in srgb, var(--plaster) 92%, transparent);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--rule);
  }
  header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
  .mark { font-family: var(--display); font-weight: 800; font-size: 1.15rem; text-decoration: none; letter-spacing: .01em; }
  .mark span { font-weight: 400; color: var(--lichen); }
  nav.site ul { list-style: none; display: flex; gap: clamp(14px, 2.5vw, 32px); margin: 0; padding: 0; flex-wrap: wrap; }
  nav.site a { font-family: var(--display); font-size: .98rem; text-decoration: none; padding: 6px 0; }
  nav.site a:hover { text-decoration: underline; text-decoration-color: var(--ochre); }

  /* Hero: the acronym */
  .hero { padding: clamp(40px, 8vw, 96px) 0 clamp(56px, 9vw, 112px); border-top: 0; }
  .hero .wrap { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 88px); align-items: end; }
  .acro {
    font-family: var(--display);
    font-size: clamp(2.1rem, 7.4vw, 5.9rem);
    line-height: .96;
    margin: 0;
    font-weight: 300;
    font-variation-settings: "wdth" 80;
    letter-spacing: -0.015em;
  }
  .acro .line { display: block; white-space: nowrap; }
  .acro .cap { font-weight: 800; font-variation-settings: "wdth" 100; color: var(--moss); }
  .acro .rest { color: var(--lichen); }
  .acro .join { font-size: .5em; color: var(--lichen); margin-left: .25em; vertical-align: .55em; }
  .acro .rest, .acro .join { display: inline-block; animation: unfold .9s cubic-bezier(.2,.7,.2,1) both; }
  .acro .line:nth-child(1) > :not(.cap) { animation-delay: .15s; }
  .acro .line:nth-child(2) > :not(.cap) { animation-delay: .25s; }
  .acro .line:nth-child(3) > :not(.cap) { animation-delay: .35s; }
  .acro .line:nth-child(4) > :not(.cap) { animation-delay: .45s; }
  .acro .line:nth-child(5) > :not(.cap) { animation-delay: .55s; }
  .acro .line:nth-child(6) > :not(.cap) { animation-delay: .65s; }
  .acro .line:nth-child(7) > :not(.cap) { animation-delay: .75s; }
  @keyframes unfold { from { opacity: 0; transform: translateX(-.35em); clip-path: inset(-.4em 100% -.4em 0); } to { opacity: 1; transform: none; clip-path: inset(-.4em -.4em -.4em -.4em); } }
  .hero-copy .lead { font-size: clamp(1.2rem, 1.9vw, 1.45rem); line-height: 1.45; margin-bottom: 2rem; }
  .question {
    border-left: 4px solid var(--ochre);
    padding: 4px 0 4px 20px;
    margin: 0;
    font-style: italic;
    color: var(--moss);
  }
  .question cite { display: block; font-style: normal; font-family: var(--display); font-size: .9rem; color: var(--lichen); margin-top: .5rem; }

  /* About */
  .about .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(32px, 6vw, 88px); }
  .not-a {
    font-family: var(--display);
    font-size: clamp(1.4rem, 2.6vw, 2rem);
    font-weight: 500;
    line-height: 1.2;
    margin: 2rem 0 0;
    max-width: 30ch;
  }
  .status {
    margin-top: 2rem; padding: 20px 22px; background: var(--specimen);
    border: 1px solid var(--rule); border-radius: 4px; font-size: 1rem;
  }
  .status strong { font-family: var(--display); }

  /* The loop */
  .method { background: var(--moss); color: var(--plaster); border-top: 0; }
  .method h2 { color: var(--plaster); }
  .method .intro { color: color-mix(in srgb, var(--plaster) 78%, var(--moss)); }
  .loop { list-style: none; margin: 3rem 0 0; padding: 0 0 56px; position: relative;
          display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 0; counter-reset: step; }
  .loop li { position: relative; padding: 0 18px 0 0; counter-increment: step; }
  .loop .word {
    display: block; font-family: var(--display); font-weight: 750; font-variation-settings: "wdth" 78;
    font-size: clamp(1.4rem, 2.1vw, 1.85rem); line-height: 1; color: var(--ochre); margin-bottom: 14px;
  }
  .loop .word::before { content: counter(step); display: block; font-size: .9rem; font-weight: 500; font-variation-settings: "wdth" 100; color: color-mix(in srgb, var(--plaster) 55%, var(--moss)); margin-bottom: 6px; }
  .loop li:not(:last-child) .word::after { content: "→"; font-weight: 300; margin-left: .2em; color: color-mix(in srgb, var(--plaster) 40%, var(--moss)); }
  .loop p { font-size: .98rem; line-height: 1.5; color: color-mix(in srgb, var(--plaster) 85%, var(--moss)); margin: 0; }
  .loop li:last-child .word { color: var(--plaster); }
  /* return path: Repeat feeds back into Ask */
  .loop::after {
    content: ""; position: absolute; left: 6px; right: calc(100% / 14); bottom: 8px; height: 30px;
    border: 2px solid var(--ochre); border-top: 0; border-radius: 0 0 14px 14px; opacity: .8;
  }
  .loop::before {
    content: ""; position: absolute; left: 1px; bottom: 34px;
    border: 6px solid transparent; border-bottom: 9px solid var(--ochre); border-top: 0;
  }
  .loop-note { font-family: var(--display); font-size: .95rem; color: color-mix(in srgb, var(--plaster) 65%, var(--moss)); margin-top: 8px; }

  /* Areas of work */
  .areas .head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(32px, 6vw, 88px); align-items: end; margin-bottom: 2.5rem; }
  dl.areas-list { margin: 0; border-top: 2px solid var(--moss); }
  .areas-list .row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(16px, 6vw, 88px); padding: 22px 0; border-bottom: 1px solid var(--rule); }
  .areas-list dt { font-family: var(--display); font-size: 1.2rem; font-weight: 650; line-height: 1.3; }
  .areas-list dd { margin: 0; }
  .areas-list dd p { margin: 0; }

  /* Materials */
  .materials .grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 3vw, 40px); margin-top: 2.5rem; }
  .swatch { aspect-ratio: 4 / 3; border-radius: 3px; margin-bottom: 18px; border: 1px solid var(--rule); }
  .sw-earth {
    background-color: var(--earth);
    background-image:
      radial-gradient(circle at 20% 30%, rgba(255,255,255,.12) 0 1.5px, transparent 2px),
      radial-gradient(circle at 70% 60%, rgba(0,0,0,.18) 0 1.5px, transparent 2px),
      radial-gradient(circle at 45% 80%, rgba(255,230,200,.15) 0 1px, transparent 1.5px),
      linear-gradient(180deg, #9A6646, #7A4E33);
    background-size: 13px 11px, 17px 19px, 9px 7px, 100% 100%;
  }
  .sw-hemp {
    background-color: var(--straw);
    background-image:
      repeating-linear-gradient(28deg, rgba(90,70,20,.22) 0 1px, transparent 1px 7px),
      repeating-linear-gradient(-34deg, rgba(255,250,220,.35) 0 1px, transparent 1px 11px),
      repeating-linear-gradient(80deg, rgba(110,85,30,.15) 0 2px, transparent 2px 15px);
  }
  .sw-myc {
    background-color: var(--myc);
    background-image:
      radial-gradient(ellipse at 30% 40%, rgba(170,155,120,.35) 0 18%, transparent 40%),
      radial-gradient(ellipse at 75% 70%, rgba(170,155,120,.28) 0 14%, transparent 34%),
      radial-gradient(circle at 60% 20%, rgba(255,255,255,.9) 0 10%, transparent 26%),
      repeating-radial-gradient(circle at 50% 50%, rgba(140,125,95,.10) 0 1px, transparent 1px 6px);
  }
  .materials .grid p { font-size: 1rem; }

  /* Cohort */
  .cohort .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(32px, 6vw, 88px); }
  .cohort ul { margin: 1.25rem 0 0; padding: 0; list-style: none; }
  .cohort li { padding: 12px 0; border-bottom: 1px solid var(--rule); font-family: var(--display); font-size: 1.1rem; }
  .cohort li:first-child { border-top: 1px solid var(--rule); }

  /* People */
  .people-group { margin-top: 2.5rem; }
  .people-group h3 { font-size: 1rem; font-weight: 600; color: var(--lichen); margin-bottom: 1rem; }
  .people-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 0 clamp(20px, 3vw, 40px); }
  .people-list li { border-top: 2px solid var(--moss); padding: 14px 0 24px; }
  .people-list .name { font-family: var(--display); font-size: 1.35rem; font-weight: 650; line-height: 1.2; display: block; }
  .people-list .role { font-size: 1rem; color: var(--lichen); }
  .fellows li { border-top-width: 1px; }
  .people-note { font-size: 1rem; color: var(--lichen); margin-top: .5rem; }

  /* Projects */
  .project { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(16px, 6vw, 88px); padding: 22px 0; border-top: 2px solid var(--moss); border-bottom: 1px solid var(--rule); margin-top: 2rem; }
  .project .pname { font-family: var(--display); font-size: 1.5rem; font-weight: 700; }
  .project .area { display: block; font-family: var(--display); font-size: .95rem; color: var(--lichen); font-weight: 400; margin-top: 4px; }

  /* Get involved */
  .involve .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(32px, 6vw, 88px); }
  .involve .who { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px clamp(20px, 3vw, 40px); }
  .involve .who p { font-size: 1rem; margin: 0; }
  .contact { margin-top: 2.5rem; padding: 24px; background: var(--specimen); border: 1px solid var(--rule); border-radius: 4px; }
  .contact p { margin: 0; }

  footer.site { background: var(--moss); color: var(--plaster); padding: 56px 0 40px; }
  footer.site .wrap { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 32px; align-items: end; }
  footer .sig { font-family: var(--display); font-size: clamp(1.3rem, 2.4vw, 1.8rem); font-weight: 400; line-height: 1.25; margin: 0; max-width: 28ch; }
  footer .small { font-family: var(--display); font-size: .92rem; color: color-mix(in srgb, var(--plaster) 70%, var(--moss)); margin: 0; }

  /* Responsive */
  @media (max-width: 900px) {
    .hero .wrap, .about .wrap, .areas .head, .cohort .wrap, .involve .wrap, footer.site .wrap { grid-template-columns: 1fr; }
    .areas-list .row, .project { grid-template-columns: 1fr; gap: 6px; }
    .materials .grid { grid-template-columns: 1fr; }
    .swatch { aspect-ratio: 16 / 7; }
    /* loop goes vertical; the return path runs up the left side */
    .loop { grid-template-columns: 1fr; padding: 0 0 0 44px; }
    .loop li { padding: 0 0 26px; }
    .loop .word { display: flex; align-items: baseline; gap: 12px; margin-bottom: 6px; }
    .loop .word::before { margin: 0; }
    .loop li:not(:last-child) .word::after { content: "↓"; }
    .loop::after { left: 8px; right: auto; top: 10px; bottom: 34px; width: 22px; height: auto; border: 2px solid var(--ochre); border-right: 0; border-radius: 14px 0 0 14px; }
    .loop::before { left: 26px; bottom: auto; top: 4px; border: 6px solid transparent; border-left: 9px solid var(--ochre); border-right: 0; }
  }
  @media (max-width: 560px) {
    .involve .who { grid-template-columns: 1fr; }
    nav.site ul { gap: 14px; }
    header.site .wrap { padding-top: 8px; padding-bottom: 8px; }
  }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .acro .rest, .acro .join { animation: none; }
  }

  /* ---- multi-page additions ---- */
  section[id] { scroll-margin-top: 72px; }
  footer.site .wrap { grid-template-columns: 1fr; }
  .project + .project { margin-top: 0; border-top: 0; }
  nav.site a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--ochre); text-decoration-thickness: 2px; }
  .btn {
    display: inline-block; font-family: var(--display); font-weight: 600; font-size: 1rem;
    padding: 12px 20px; border-radius: 3px; text-decoration: none;
    background: var(--moss); color: var(--plaster); border: 2px solid var(--moss);
  }
  .btn:hover { color: var(--plaster); background: color-mix(in srgb, var(--moss) 85%, var(--ochre)); }
  .btn.alt { background: transparent; color: var(--moss); }
  .btn.alt:hover { background: var(--specimen); color: var(--moss); }
  .actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 0 0 2rem; }

  .page-head { padding: clamp(48px, 9vw, 112px) 0 clamp(40px, 6vw, 72px); border-top: 0; }
  .page-title {
    font-family: var(--display); font-weight: 750; font-variation-settings: "wdth" 80;
    font-size: clamp(2.6rem, 7.5vw, 5.6rem); line-height: .98; letter-spacing: -0.015em; margin: 0 0 1.5rem;
  }
  .page-head .lead { font-size: clamp(1.2rem, 1.9vw, 1.45rem); line-height: 1.45; max-width: 52ch; margin: 0; }

  section:has(> .split) { padding: clamp(48px, 7vw, 88px) 0; }
  .split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(32px, 6vw, 88px); }

  /* audience paths on the home page */
  .paths { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--moss); }
  .paths li { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(16px, 6vw, 88px); padding: 26px 0; border-bottom: 1px solid var(--rule); }
  .paths .who { font-family: var(--display); font-size: 1.5rem; font-weight: 700; line-height: 1.2; }
  .paths p { margin: 0 0 .6rem; }
  .paths a { font-family: var(--display); font-weight: 600; }

  .news-item { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(16px, 6vw, 88px); padding: 24px 0; border-top: 2px solid var(--moss); border-bottom: 1px solid var(--rule); }
  .news-item time { font-family: var(--display); color: var(--lichen); }
  .news-item h3 { font-size: 1.45rem; }
  .empty { border: 1.5px dashed var(--rule); border-radius: 4px; padding: 22px 24px; margin-top: 2rem; color: var(--lichen); font-size: 1rem; }
  .empty p { margin: 0; }

  ul.plain { margin: 1rem 0 0; padding: 0; list-style: none; }
  ul.plain li { padding: 12px 0; border-bottom: 1px solid var(--rule); }
  ul.plain li:first-child { border-top: 1px solid var(--rule); }
  ul.plain.ui li { font-family: var(--display); font-size: 1.1rem; }

  @media (max-width: 900px) {
    .split, .paths li, .news-item { grid-template-columns: 1fr; gap: 6px; }
    .split { gap: 24px; }
    .split > h2 { margin-bottom: 0; }
  }
  @media (max-width: 560px) { header.site { position: static; } }