:root{
  --void:#0b0e14; --shell:#10141d; --shell2:#141926; --rule:#1f2636;
  --ink:#e9edf4; --dim:#8b97ad; --indigo:#5865ff; --cyan:#22d3ee;
  --sweep:linear-gradient(105deg,#5865ff 0%,#22d3ee 100%);
  --rise:#34d399; --fall:#f87186;
  --code:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --face:'Sora',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--void);color:var(--ink);font-family:var(--face);line-height:1.64;
  -webkit-font-smoothing:antialiased;font-size:16.5px}
.dts-shell{max-width:1060px;margin:0 auto;padding:0 22px}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--face);line-height:1.17;letter-spacing:-.014em;font-weight:700}
h2{font-size:clamp(1.32rem,2.5vw,1.72rem);margin:0 0 .5em}
h3{font-size:1.07rem;margin:1.45em 0 .35em;color:#fff;font-weight:600}
.dts-dim{color:var(--dim)}
.dts-band{padding:44px 0}
.dts-band + .dts-band{border-top:1px solid var(--rule)}
.dts-eyebrow{font-family:var(--code);font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;
  background:var(--sweep);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:14px}
/* top bar */
.dts-bar{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:13px 22px;background:rgba(11,14,20,.88);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--rule)}
.dts-brand{display:flex;align-items:center;gap:10px;font-family:var(--code);font-weight:700;color:#fff;
  font-size:.92rem;letter-spacing:-.01em}
.dts-brand svg{display:block}
.dts-links{display:flex;gap:20px;list-style:none;margin:0;padding:0;font-size:.88rem}
.dts-links a{color:var(--dim)}
.dts-links a:hover{color:var(--ink);text-decoration:none}
.dts-go{background:var(--sweep);color:#06121a!important;padding:8px 14px;border-radius:8px;
  font-family:var(--code);font-size:.8rem;font-weight:700}
.dts-go:hover{filter:brightness(1.08);text-decoration:none}
.dts-burger{display:none;background:none;border:0;cursor:pointer;width:30px;height:24px}
.dts-burger i{display:block;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}
.dts-drawer{display:none;flex-direction:column;gap:4px;padding:8px 22px 18px;border-bottom:1px solid var(--rule);
  background:var(--shell)}
.dts-drawer a{color:var(--ink);padding:9px 0;border-bottom:1px solid var(--rule);font-size:.95rem}
.dts-drawer.open{display:flex}
/* hero + blocks */
.dts-top{padding:60px 0 42px}
.dts-kick{font-family:var(--code);font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;
  background:var(--sweep);-webkit-background-clip:text;background-clip:text;color:transparent}
.dts-top h1{font-size:clamp(2rem,4.6vw,3.05rem);margin:.32em 0 .26em;color:#fff;font-weight:700}
.dts-stake{font-size:1.13rem;color:#cfd7e4;max-width:65ch}
.dts-rail{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;font-family:var(--code);font-size:.82rem}
.dts-pill{border:1px solid var(--rule);background:var(--shell);border-radius:8px;padding:8px 12px;color:var(--dim)}
.dts-pill b{color:var(--cyan);font-weight:600}
.dts-act{display:inline-block;margin-top:26px;background:var(--sweep);color:#06121a;font-weight:700;
  font-family:var(--code);padding:12px 21px;border-radius:9px;font-size:.92rem}
.dts-act:hover{filter:brightness(1.08);text-decoration:none}
.dts-lede{font-size:1.06rem;color:#d6dde8}
.dts-slab{background:var(--shell);border:1px solid var(--rule);border-radius:13px;padding:22px 24px;margin:18px 0}
.dts-slab.lit{border-color:#2c3a63;box-shadow:0 0 0 1px rgba(88,101,255,.14) inset}
.dts-cells{display:grid;gap:16px}
@media(min-width:720px){.dts-3{grid-template-columns:repeat(3,1fr)}.dts-2{grid-template-columns:1fr 1fr}}
.dts-cell{background:var(--shell);border:1px solid var(--rule);border-radius:11px;padding:18px}
.dts-cell h3{margin-top:0}
.dts-stub{font-family:var(--code);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;
  background:var(--sweep);-webkit-background-clip:text;background-clip:text;color:transparent}
ul.dts-list{list-style:none;padding:0;margin:14px 0}
ul.dts-list li{padding:9px 0 9px 26px;position:relative;border-bottom:1px solid var(--rule);color:#d2dae4}
ul.dts-list li:before{content:"\25B8";position:absolute;left:6px;color:var(--indigo);font-family:var(--code)}
.dts-scroll{overflow-x:auto;margin:18px 0}
table{border-collapse:collapse;width:100%;font-size:.9rem;min-width:520px}
th,td{padding:11px 13px;border-bottom:1px solid var(--rule);text-align:left}
th{font-family:var(--code);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}
td .dts-up{color:var(--rise);font-family:var(--code)}
.dts-trail{font-family:var(--code);font-size:.76rem;color:var(--dim);padding:16px 0 0}
.dts-trail a{color:var(--dim)}
.dts-trail .div{opacity:.5;margin:0 4px}
.dts-verdict{font-size:1.1rem;color:#cfd7e4;max-width:66ch;margin:.4em 0 0}
.dts-prose h3{background:var(--sweep);-webkit-background-clip:text;background-clip:text;color:transparent}
.dts-aside{font-family:var(--code);font-size:.82rem;color:var(--dim);border-left:2px solid var(--indigo);
  padding:4px 0 4px 14px;margin:16px 0}
.dts-foot{border-top:1px solid var(--rule);background:var(--shell2);margin-top:30px;padding:40px 0 30px}
.dts-foot .grid{display:grid;gap:22px}
@media(min-width:720px){.dts-foot .grid{grid-template-columns:2fr 1fr 1fr 1fr}}
.dts-foot a{color:var(--dim);display:block;padding:3px 0}
.dts-foot a:hover{color:var(--cyan)}
.dts-foot .cap{color:#fff;font-family:var(--code);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:9px}
.dts-fine{color:#6e7d92;font-size:.82rem;margin-top:24px;border-top:1px solid var(--rule);padding-top:16px}
/* worked block: a framed monospace step panel, distinct from .dts-aside */
.dts-walk{background:var(--shell2);border:1px solid var(--rule);border-left:3px solid var(--indigo);
  border-radius:0 10px 10px 0;padding:18px 20px;margin:20px 0}
.dts-walk .dts-stub{margin-bottom:10px}
.dts-walk code,code{font-family:var(--code);font-size:.86em;background:#0c1019;border:1px solid var(--rule);
  border-radius:4px;padding:1px 6px;color:var(--cyan);word-break:break-word}
.dts-walk ol{margin:0;padding-left:20px}
.dts-walk ol li{padding:6px 0;color:#d2dae4}
.dts-walk ol li b{color:#fff}
/* inline diagram frame */
figure.dts-fig{margin:24px 0;background:var(--shell);border:1px solid var(--rule);border-radius:13px;
  padding:18px 18px 12px}
figure.dts-fig svg{display:block;width:100%;height:auto;max-width:760px;margin:0 auto}
figure.dts-fig figcaption{font-family:var(--code);font-size:.78rem;color:var(--dim);
  text-align:center;margin-top:10px}
.dts-fig .f-box{fill:#141926;stroke:#2c3a63;stroke-width:1.2}
.dts-fig .f-line{stroke:#5865ff;stroke-width:1.6;fill:none}
.dts-fig .f-head{font-family:'IBM Plex Mono',monospace;font-size:11.5px;fill:#fff;font-weight:600}
.dts-fig .f-sub{font-family:'IBM Plex Mono',monospace;font-size:9.5px;fill:#8b97ad}
.dts-fig .f-axis{font-family:'IBM Plex Mono',monospace;font-size:10px;fill:#8b97ad}
.dts-fig .f-yes{fill:#34d399;font-family:'IBM Plex Mono',monospace;font-size:13px;font-weight:700}
.dts-fig .f-no{fill:#f87186;font-family:'IBM Plex Mono',monospace;font-size:13px;font-weight:700}
/* related cluster at foot of a leaf page */
.dts-more{margin:30px 0 0;border-top:1px solid var(--rule);padding-top:20px}
.dts-more .cap{font-family:var(--code);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;
  background:var(--sweep);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}
.dts-more .row{display:grid;gap:10px}
@media(min-width:620px){.dts-more .row{grid-template-columns:1fr 1fr}}
.dts-more a.lk{display:block;border:1px solid var(--rule);border-radius:9px;padding:12px 14px;
  background:var(--shell);color:var(--ink)}
.dts-more a.lk:hover{border-color:#2c3a63;text-decoration:none}
.dts-more a.lk b{color:var(--cyan);display:block;font-size:.95rem}
.dts-more a.lk span{color:var(--dim);font-size:.84rem}
.dts-grade{font-family:var(--code);color:var(--cyan)}
@media(max-width:719px){.dts-links{display:none}.dts-burger{display:block}}

/* a11y + responsive polish */
:focus-visible{outline:2px solid currentColor;outline-offset:3px;border-radius:3px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.01ms !important;transition-duration:.01ms !important}}
@media(max-width:719px){table{min-width:0}th,td{padding:8px 10px}}