/* DARWIN newsroom reading scaffolding: progress bar, on-this-page TOC, subscribe strip.
   Self-contained (rd- prefix); works on article pages and the homepage. */
.rd-progress{position:fixed;top:0;left:0;height:3px;width:0%;z-index:80;
  background:linear-gradient(90deg,#2de1c2,#f5b942);pointer-events:none}
.rd-toc{border:1px solid #16241f;background:#0a1116;border-radius:10px;
  padding:14px 18px;margin:26px 0 8px;font-family:"Helvetica Neue",Arial,system-ui,sans-serif}
.rd-toc summary{cursor:pointer;font-weight:700;font-size:13px;letter-spacing:.12em;
  text-transform:uppercase;color:#2de1c2;list-style:none}
.rd-toc summary::-webkit-details-marker{display:none}
.rd-toc summary::before{content:"+ ";color:#f5b942}
.rd-toc[open] summary::before{content:"- "}
.rd-toc ul{margin:12px 0 2px;padding:0;list-style:none;columns:2;column-gap:28px}
.rd-toc li{margin:0 0 8px;break-inside:avoid}
.rd-toc a{color:#8fa3a0;text-decoration:none;font-size:14px;line-height:1.45;border-left:2px solid transparent;padding-left:10px;display:block}
.rd-toc a:hover{color:#eaf2ef}
.rd-toc a.rd-active{color:#2de1c2;border-left-color:#2de1c2}
@media(max-width:640px){.rd-toc ul{columns:1}}
.rd-subscribe{border:1px solid #16241f;border-left:4px solid #2de1c2;background:#0a1116;
  border-radius:10px;padding:28px 30px;margin:44px auto;max-width:760px;
  display:flex;flex-wrap:wrap;gap:18px 28px;align-items:center;justify-content:space-between;
  font-family:"Helvetica Neue",Arial,system-ui,sans-serif}
.rd-sub-k{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#f5b942;font-weight:700;margin-bottom:8px}
.rd-sub-t{font-family:Georgia,"Times New Roman",serif;font-size:1.45rem;color:#eaf2ef;line-height:1.3;margin-bottom:8px}
.rd-subscribe p{color:#8fa3a0;font-size:14.5px;line-height:1.6;margin:0;max-width:44ch}
.rd-sub-btn{display:inline-block;background:#2de1c2;color:#04211c;font-weight:700;font-size:15px;
  padding:14px 26px;border-radius:8px;text-decoration:none;white-space:nowrap;
  transition:transform .2s,box-shadow .2s}
.rd-sub-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(45,225,194,.25);color:#04211c}