/* Direction-2 "Open Ledger" homepage sections — ALL scoped under .d2 so the
   research-desk register (Fraunces serif / IBM Plex Mono / Inter / warm paper)
   and its CSS variables stay local and never touch the rest of the site.
   Reveal class is .shown (renamed from D2's .in to avoid the site's .in container). */
.d2{
  --paper:#ECE4D5;--cream:#F6F1E7;--cream-2:#E6DDCC;--line:#E1DACB;--line-2:#C9C2B4;--div:#C9C2B4;
  --ink:#1A1A1A;--ink-2:#4A443B;--mut:#6F6A60;--accent:#FF6933;--accent-ink:#BE4413;
  --dark:#262626;--dark-2:#303030;--dark-line:#3A3A3A;
  --serif:"Lato",system-ui,-apple-system,Arial,sans-serif;
  --sans:"Sen",system-ui,-apple-system,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --t-h2:clamp(1.7rem,1.2rem + 1.8vw,2.6rem);--t-h3:clamp(1.2rem,1.02rem + .6vw,1.5rem);
  --t-lede:clamp(1.06rem,.98rem + .35vw,1.3rem);
  --shell:1440px;--pad:16px;--ease:cubic-bezier(.22,.9,.3,1);  /* S115 design-system tokens; --shell 1440/16 deliberately matches the site .in grid so D2 bands share the homepage left edge */
  background:var(--paper);color:var(--ink);
  font:400 1.0625rem/1.68 var(--sans);font-feature-settings:"ss01";border-top:0;
}
.d2 *{box-sizing:border-box}
.d2 a{color:inherit;text-decoration-color:color-mix(in srgb,var(--accent) 55%,transparent);text-underline-offset:3px}
.d2 a:hover{text-decoration-color:var(--accent)}
.d2 .shell{max-width:var(--shell);margin:0 auto;padding-inline:var(--pad)}
.d2 h2,.d2 h3{margin:0;font-family:var(--serif);font-weight:800;line-height:1.04;letter-spacing:-.02em}
.d2 h2{font-size:var(--t-h2);font-variation-settings:"opsz" 72,"SOFT" 30}
.d2 h3{font-size:var(--t-h3);line-height:1.18;font-variation-settings:"opsz" 40}
.d2 .kicker{font:500 .72rem/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--accent-ink);display:flex;align-items:center;gap:10px;margin:0 0 18px}
.d2 .kicker::before{content:"";width:22px;height:2px;background:var(--accent);flex:none}
.d2 .lede{font-size:var(--t-lede);line-height:1.6;color:var(--ink-2);max-width:62ch}
.d2 .lede strong,.d2 .copy strong{color:var(--ink);font-weight:600}
.d2 .copy{color:var(--ink-2);max-width:64ch}
.d2 .copy a{color:var(--ink)}
.d2 .pull{font-family:var(--serif);font-weight:480;font-style:italic;font-size:clamp(1.25rem,1.05rem + .9vw,1.8rem);line-height:1.35;font-variation-settings:"opsz" 28,"SOFT" 60;color:var(--ink);max-width:50ch;margin:0}
.d2 .prov{display:inline-flex;align-items:center;gap:8px;font:500 .67rem/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--mut);text-decoration:none}
.d2 .prov::before{content:"";width:7px;height:7px;background:var(--accent);flex:none}
.d2 .prov b{color:var(--ink-2);font-weight:500}
.d2 .cite{display:inline-block;vertical-align:baseline;font:500 .68rem/1 var(--mono);letter-spacing:.03em;color:var(--accent-ink);text-decoration:none;border:1px solid var(--line-2);border-radius:4px;padding:4px 8px 3px;margin-inline:2px;background:color-mix(in srgb,var(--cream) 60%,transparent);transition:border-color .18s,background .18s,transform .18s;white-space:nowrap}
.d2 .cite::before{content:"§ ";color:var(--mut)}
.d2 .cite:hover{border-color:var(--accent);background:var(--cream);transform:translateY(-1px)}
.d2 .band-dark .cite{border-color:var(--dark-line);background:transparent;color:var(--accent)}
.d2 .band-dark .cite:hover{background:var(--dark-2)}
.d2 .btn{display:inline-flex;align-items:center;gap:10px;font:600 .92rem/1 var(--sans);background:var(--dark);color:var(--paper);border:1px solid var(--dark);padding:15px 26px;border-radius:999px;text-decoration:none;position:relative;overflow:hidden;isolation:isolate;transition:color .25s var(--ease)}
.d2 .btn::after{content:"→";transition:transform .25s var(--ease)}
.d2 .btn::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--accent);transform:translateX(-101%);transition:transform .3s var(--ease)}
.d2 .btn:hover::before{transform:translateX(0)}
.d2 .btn:hover::after{transform:translateX(3px)}
.d2 .btn.o{background:transparent;color:var(--ink);border-color:var(--line-2)}
.d2 .btn.o:hover{color:var(--paper);border-color:var(--accent)}
.d2 section{padding-block:clamp(44px,7vw,96px);position:relative}
.d2 section::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:calc(min(1240px,100%) - 2*clamp(18px,4vw,40px));height:1.5px;background:var(--div)}
.d2 .band-dark::before,.d2 .band-dark + section::before{display:none}
.d2 .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(26px,4vw,48px)}
.d2 .sec-head .copy{margin-top:14px}
.d2 .book{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(24px,4vw,56px);align-items:start}
@media(max-width:920px){.d2 .book{grid-template-columns:1fr}}
.d2 .map-card{position:sticky;top:70px}
@media(max-width:920px){.d2 .map-card{position:static}}
.d2 .map-frame{background:var(--cream);border:1px solid var(--line);border-radius:10px;padding:clamp(10px,1.6vw,22px);position:relative}
.d2 .map-frame svg{display:block;width:100%;height:auto}
.d2 .dot{transition:r .15s var(--ease),opacity .25s;cursor:pointer}
.d2 .dot.dim{opacity:.14}
.d2 .dot.hot{stroke:var(--ink);stroke-width:1.5}
.d2 .map-tip{position:absolute;pointer-events:none;z-index:5;background:var(--dark);color:var(--paper);font:500 .72rem/1.5 var(--mono);padding:7px 11px;border-radius:6px;transform:translate(-50%,calc(-100% - 10px));white-space:nowrap;opacity:0;transition:opacity .15s}
.d2 .map-tip.on{opacity:1}
.d2 .map-tip b{color:var(--accent);font-weight:600}
.d2 .legend{display:flex;flex-wrap:wrap;gap:14px 18px;margin-top:14px;align-items:center}
.d2 .legend .li{display:inline-flex;align-items:center;gap:7px;font:500 .68rem/1 var(--mono);letter-spacing:.04em;color:var(--ink-2)}
.d2 .legend .sw{width:11px;height:11px;border-radius:50%}
.d2 .map-note{font:400 .78rem/1.6 var(--sans);color:var(--mut);margin-top:12px;max-width:56ch}
.d2 .strips-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:6px;flex-wrap:wrap}
.d2 .sorts{display:flex;gap:4px}
.d2 .sorts button{font:500 .67rem/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;background:none;border:1px solid transparent;border-radius:4px;color:var(--mut);padding:6px 9px;cursor:pointer}
.d2 .sorts button:hover{color:var(--ink);background:var(--cream)}
.d2 .sorts button[aria-pressed="true"]{color:var(--accent-ink);border-color:var(--line-2);background:var(--cream)}
.d2 .strips{display:flex;flex-direction:column}
.d2 .strip{display:grid;grid-template-columns:64px 1fr 44px;align-items:center;gap:12px;padding:7px 8px;border-radius:6px;text-decoration:none;transition:background .15s}
.d2 .strip:hover,.d2 .strip.hot{background:var(--cream)}
.d2 .strip .pc{font:600 .78rem/1 var(--mono);color:var(--ink)}
.d2 .strip .n{font:500 .68rem/1 var(--mono);color:var(--mut);text-align:right;font-variant-numeric:tabular-nums}
.d2 .strip .track{position:relative;height:18px}
.d2 .strip .track::before{content:"";position:absolute;inset:50% 0 auto;height:1px;background:var(--line)}
.d2 .strip .range{position:absolute;top:5px;height:8px;border-radius:99px;min-width:8px;opacity:.9;transform-origin:left center}
.d2 .strip .med{position:absolute;top:2px;width:2px;height:14px;background:var(--ink);border-radius:1px}
.d2 .strip .lohi{position:absolute;inset:auto 0 -6px;display:none;justify-content:space-between;font:500 .62rem/1 var(--mono);color:var(--mut)}
.d2 .strip:hover .lohi,.d2 .strip.hot .lohi{display:flex}
.d2 .strip:hover .track,.d2 .strip.hot .track{height:30px}
.d2 .axis{display:flex;justify-content:space-between;font:500 .62rem/1 var(--mono);color:var(--mut);padding:8px 8px 0 84px}
.d2 .strips .range{transform:scaleX(0);transition:transform .7s var(--ease)}
.d2 .strips.shown .range{transform:scaleX(1)}
@media(prefers-reduced-motion:reduce){.d2 .strips .range{transform:none;transition:none}}
.d2 .band-dark{background:var(--dark);color:var(--cream);border-top:none}
.d2 .band-dark h2,.d2 .band-dark h3{color:var(--paper)}
.d2 .band-dark .kicker{color:var(--accent)}
.d2 .band-dark .copy,.d2 .band-dark .lede{color:color-mix(in srgb,var(--cream) 78%,var(--dark))}
.d2 .band-dark .pull{color:var(--paper)}
.d2 .levers{margin-top:clamp(28px,4vw,48px);border-top:1px solid var(--dark-line)}
.d2 .lever{display:grid;grid-template-columns:64px 1fr auto;gap:18px;align-items:baseline;padding:20px 4px;border-bottom:1px solid var(--dark-line)}
.d2 .lever .no{font:500 1rem/1 var(--mono);color:var(--accent);font-variant-numeric:tabular-nums}
.d2 .lever p{margin:0;font-size:clamp(1rem,.94rem + .35vw,1.2rem);color:var(--cream);max-width:56ch}
.d2 .lever p b{color:var(--paper)}
.d2 .lever .cites{white-space:nowrap}
@media(max-width:720px){.d2 .lever{grid-template-columns:40px 1fr}.d2 .lever .cites{grid-column:2}}
.d2 .band-dark .btn{background:var(--accent);border-color:var(--accent);color:var(--dark);font-weight:700}
.d2 .band-dark .btn::before{background:var(--paper)}
.d2 .band-dark .btn.o{background:transparent;color:var(--cream);border-color:var(--dark-line)}
.d2 .band-dark .btn.o:hover{color:var(--dark)}
.d2 .months{display:grid;grid-template-columns:repeat(12,1fr);gap:6px;margin-top:clamp(26px,4vw,44px)}
.d2 .month{display:flex;flex-direction:column;gap:8px;text-align:center}
.d2 .month .bar{border-radius:6px;background:var(--cream-2);height:110px;position:relative;overflow:hidden}
.d2 .month .bar i{position:absolute;inset:auto 0 0;display:block;border-radius:6px 6px 0 0;transform:scaleY(0);transform-origin:bottom;transition:transform .8s var(--ease)}
.d2 .months.shown .bar i{transform:scaleY(1)}
@media(prefers-reduced-motion:reduce){.d2 .month .bar i{transform:none;transition:none}}
.d2 .month .m{font:500 .66rem/1 var(--mono);letter-spacing:.06em;color:var(--mut)}
.d2 .month.is-peak .m{color:var(--accent-ink);font-weight:600}
.d2 .m-trough i{height:16%;background:var(--line-2)}
.d2 .m-mid i{height:38%;background:var(--line-2)}
.d2 .m-second i{height:60%;background:#F2A35E}
.d2 .m-shoulder i{height:78%;background:#FF8C57}
.d2 .m-peak i{height:100%;background:var(--accent)}
.d2 .month .tagp{position:absolute;top:8px;left:50%;transform:translateX(-50%);font:700 .6rem/1 var(--mono);letter-spacing:.1em;color:var(--dark)}
@media(max-width:700px){.d2 .months{grid-template-columns:repeat(12,minmax(34px,1fr));overflow-x:auto}}
.d2 .months-note{font:400 .8rem/1.6 var(--sans);color:var(--mut);margin-top:14px;max-width:64ch}
.d2 .arearows{border-top:1px solid var(--line)}
.d2 .arearow{display:grid;grid-template-columns:minmax(150px,2fr) minmax(0,3fr) auto;gap:18px;align-items:baseline;padding:18px 4px;border-bottom:1px solid var(--line);text-decoration:none;transition:background .15s,padding-left .25s var(--ease)}
.d2 .arearow:hover{background:var(--cream);padding-left:14px}
.d2 .arearow .name{font-family:var(--serif);font-weight:560;font-size:clamp(1.15rem,1rem + .8vw,1.6rem);line-height:1.1}
.d2 .arearow .hook{color:var(--ink-2);font-size:.92rem}
.d2 .arearow .meta{font:500 .7rem/1.6 var(--mono);letter-spacing:.05em;color:var(--mut);text-align:right;white-space:nowrap}
.d2 .arearow .meta b{color:var(--accent-ink);font-weight:600}
@media(max-width:720px){.d2 .arearow{grid-template-columns:1fr;gap:6px}.d2 .arearow .meta{text-align:left}}
.d2 [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .65s var(--ease),transform .65s var(--ease);transition-delay:var(--d,0s)}
.d2 [data-reveal].shown{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.d2 [data-reveal]{opacity:1;transform:none;transition:none}.d2 .btn::before{display:none}}
.d2 .duo{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2.4vw,28px)}
@media(max-width:860px){.d2 .duo{grid-template-columns:1fr}}
.d2 .feature{background:var(--cream);border:1px solid var(--line);border-radius:12px;padding:clamp(24px,3.4vw,44px);position:relative;overflow:hidden;display:flex;flex-direction:column;gap:16px}
.d2 .feature .watermark{position:absolute;top:18px;right:22px;font:600 .6rem/1 var(--mono);letter-spacing:.3em;text-transform:uppercase;color:color-mix(in srgb,var(--mut) 40%,transparent)}
.d2 .feature .big{font:500 clamp(3rem,2rem + 4vw,5.2rem)/1 var(--mono);letter-spacing:-.05em;color:var(--ink);font-variant-numeric:tabular-nums}
.d2 .feature .big sub{font-size:.3em;color:var(--accent-ink);letter-spacing:0}
.d2 .feature h3{max-width:18ch}
.d2 .feature .copy{font-size:.95rem}
.d2 .feature .row{margin-top:auto;display:flex;gap:12px;flex-wrap:wrap;align-items:center}
@media(max-width:640px){.d2 .shell{padding-inline:20px}}
.d2 .about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,72px);align-items:start}
.d2 .about-grid h2{margin-bottom:22px}
.d2 .about-left{position:sticky;top:90px}
.d2 .about-prose p{margin:0 0 1.2em;font-size:1.02rem;line-height:1.7;color:var(--ink-2)}
.d2 .about-prose strong{color:var(--ink)}
.d2 .about-prose a:not(.cite){color:var(--accent-ink);text-decoration:underline;text-underline-offset:3px}
@media(max-width:860px){.d2 .about-grid{grid-template-columns:1fr}.d2 .about-left{position:static}}