/* ============================================================
   SYNTHERA SYSTEMS — Brand Kit design system (source of truth)
   Monochrome Swiss: Graphite #0B0E14 on Bone #F5F2EC.
   IBM Plex Sans (display/UI) + IBM Plex Mono (data/labels).
   Every board uses ONLY these classes. No gradient text,
   no glassmorphism, no per-section eyebrow spam beyond .kicker.
   ============================================================ */
:root{
  --graphite:#0B0E14; --bone:#F5F2EC; --panel:#ECE7DD;
  --ink:#1a1c22; --ink-soft:#3b3a35; --mut:#6B6256;
  --faint:rgba(11,14,20,.12); --line:rgba(11,14,20,.22);
  --d-ink:#D8D3C8; --d-soft:#C9C4B8; --d-mut:#8B8579; --d-faint:rgba(245,242,236,.12);
  --sans:'IBM Plex Sans',system-ui,-apple-system,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,'SF Mono',monospace;
  --max:1120px;
  --ease:cubic-bezier(.16,1,.3,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bone);color:var(--graphite);font-family:var(--sans);line-height:1.5;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg,video{display:block;max-width:100%}

/* ---- board shell ---- */
.board{padding:clamp(3.5rem,9vw,7.5rem) clamp(1.25rem,5vw,3rem);border-top:1px solid var(--faint);position:relative}
.board.dark{background:var(--graphite);color:var(--bone);border-top-color:var(--d-faint)}
.board.center{text-align:center}
.inner{max-width:var(--max);margin:0 auto;width:100%}
.inner.narrow{max-width:760px}

/* ---- type ---- */
.kicker{font-family:var(--mono);font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--mut)}
.dark .kicker{color:var(--d-mut)}
.display{font-weight:600;letter-spacing:-.035em;font-size:clamp(2.1rem,6vw,3.9rem);line-height:1.02;text-wrap:balance}
.display.xl{font-size:clamp(2.6rem,8vw,5.2rem)}
.h2{font-weight:600;letter-spacing:-.02em;font-size:clamp(1.45rem,3.4vw,2.15rem);line-height:1.12;text-wrap:balance}
.h3{font-weight:600;letter-spacing:-.01em;font-size:1.12rem}
.lede{font-size:clamp(1.06rem,2.1vw,1.32rem);line-height:1.55;max-width:62ch;color:var(--ink)}
.dark .lede{color:var(--d-ink)}
.body{font-size:1rem;line-height:1.65;max-width:68ch;color:var(--ink-soft)}
.dark .body{color:var(--d-soft)}
.mono{font-family:var(--mono)}
.muted{color:var(--mut)} .dark .muted{color:var(--d-mut)}
.wordmark{font-family:var(--sans);font-weight:500;letter-spacing:.15em;text-transform:uppercase;line-height:1;white-space:nowrap}
.tnum{font-family:var(--mono);font-weight:500}
.stack-sm>*+*{margin-top:.6rem} .stack>*+*{margin-top:1.1rem} .stack-lg>*+*{margin-top:1.8rem}

/* ---- layout ---- */
.grid{display:grid;gap:clamp(1rem,2.5vw,1.5rem)}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:center}
@media(max-width:780px){.cols-2,.cols-3,.cols-4,.split{grid-template-columns:1fr}}
.row{display:flex;gap:1.2rem;align-items:center;flex-wrap:wrap}
.between{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;flex-wrap:wrap}
.hair{height:1px;background:var(--faint);border:0;width:100%}
.dark .hair{background:var(--d-faint)}

/* ---- components ---- */
.tile{border:1px solid var(--faint);border-radius:14px;padding:clamp(1.4rem,3vw,2.2rem);background:var(--bone)}
.dark .tile{background:#11141b;border-color:var(--d-faint)}
.tile.plot{display:grid;place-items:center;min-height:240px;background:var(--panel)}
.dark .tile.plot{background:#10131a}
.swatch{border-radius:12px;min-height:150px;display:flex;align-items:flex-end;padding:1.1rem;border:1px solid var(--faint)}
.lockup{display:flex;align-items:center;gap:1.4rem}
.lockup img{height:clamp(48px,7vw,70px);width:auto}
.lockup.stacked{flex-direction:column;text-align:center;gap:.9rem}
.label{font-family:var(--mono);font-size:.72rem;color:var(--mut);letter-spacing:.04em}
.dark .label{color:var(--d-mut)}
.tag{display:inline-block;font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--mut);border:1px solid var(--faint);border-radius:999px;padding:.3rem .7rem}
.dark .tag{color:var(--d-mut);border-color:var(--d-faint)}
.index-list{font-family:var(--mono);font-size:clamp(.95rem,2vw,1.15rem);line-height:2.1}
.index-list .between{border-bottom:1px solid var(--faint);padding:.4rem 0}
.dark .index-list .between{border-color:var(--d-faint)}

/* ---- halftone (synthesis texture) ---- */
.halftone{background-image:radial-gradient(var(--graphite) 1px,transparent 1.5px);background-size:12px 12px}
.dark .halftone{background-image:radial-gradient(var(--bone) 1px,transparent 1.5px)}
.halftone-vignette{position:relative;overflow:hidden}
.halftone-vignette::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:radial-gradient(currentColor 1px,transparent 1.5px);background-size:13px 13px;opacity:.14;
  -webkit-mask-image:radial-gradient(ellipse 80% 74% at 50% 46%,transparent 24%,#000 92%);
          mask-image:radial-gradient(ellipse 80% 74% at 50% 46%,transparent 24%,#000 92%)}
.halftone-vignette>*{position:relative;z-index:1}

/* ---- ratio bar ---- */
.ratiobar{display:flex;height:54px;border-radius:10px;overflow:hidden;border:1px solid var(--faint)}
.ratiobar>span{display:flex;align-items:center;padding:0 1rem;font-family:var(--mono);font-size:.72rem}

/* ---- motion: reveal (enhances an already-visible default) ---- */
@media(prefers-reduced-motion:no-preference){
  .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
  .reveal.in{opacity:1;transform:none}
}
.specimen{font-weight:600;letter-spacing:-.03em;font-size:clamp(3rem,12vw,7rem);line-height:.9}
.scale-row{display:flex;align-items:baseline;gap:1.2rem;border-bottom:1px solid var(--faint);padding:.7rem 0}
.scale-row .label{min-width:130px}
.icon{width:100%;height:auto;stroke:var(--graphite);stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}
.dark .icon{stroke:var(--bone)}
.footnote{font-family:var(--mono);font-size:.72rem;color:var(--mut);letter-spacing:.03em}
.dark .footnote{color:var(--d-mut)}

/* interactive dot field (hover-reactive halftone) */
.board>.inner{position:relative;z-index:1}
canvas.dotfield{position:absolute;inset:0;width:100%;height:100%;z-index:0;display:block;pointer-events:none}