/* Trenyx — shared site chrome (menu + footer), identical on every page (2026-09-26).
   Namespaced tx- so it never collides with style.css or the homepage's inline CSS. */
.tx-nav { position: sticky; top: 0; z-index: 50; background: rgb(250 250 250 / 0.84);
  -webkit-backdrop-filter: blur(16px) saturate(180%); backdrop-filter: blur(16px) saturate(180%);
  box-shadow: 0 1px 0 transparent; transition: box-shadow 200ms ease; font-family: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif; }
.tx-nav.is-scrolled { box-shadow: 0 1px 0 rgb(9 9 11 / 0.09); }
@media (prefers-reduced-transparency: reduce) { .tx-nav { background: #FAFAFA; -webkit-backdrop-filter: none; backdrop-filter: none; } }
.tx-wrap { width: 100%; max-width: 1248px; margin-inline: auto; padding-inline: 48px; box-sizing: border-box; }
.tx-nav-in { display: flex; align-items: center; gap: 40px; height: 68px; }
.tx-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 1.1875rem; letter-spacing: -0.02em;
  color: #121419; text-decoration: none; margin-inline-end: auto; }
.tx-brand svg { width: 26px; height: 26px; display: block; }
.tx-links { display: flex; gap: 4px; }
.tx-links a { display: inline-flex; align-items: center; min-height: 40px; padding: 0 12px; border-radius: 8px; font-size: 0.9375rem;
  color: #4A4D54; font-weight: 500; text-decoration: none; transition: color 150ms ease, background-color 150ms ease; }
.tx-links a[aria-current="page"] { color: #121419; background: rgb(9 9 11 / 0.05); }
@media (hover: hover) and (pointer: fine) { .tx-links a:hover { color: #121419; background: rgb(9 9 11 / 0.05); } }
.tx-signin { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 0 16px; border-radius: 10px;
  margin-inline-end: -30px; background: #fff; color: #121419; font: 600 0.875rem/1 "Geist", ui-sans-serif, system-ui, sans-serif;
  text-decoration: none; white-space: nowrap; box-shadow: 0 0 0 1px rgb(9 9 11 / 0.1), 0 1px 2px rgb(0 0 0 / 0.04);
  transition: background-color 150ms ease, box-shadow 150ms ease; }
@media (hover: hover) and (pointer: fine) { .tx-signin:hover { background: #F7F7F8; box-shadow: 0 0 0 1px rgb(9 9 11 / 0.16), 0 1px 2px rgb(0 0 0 / 0.05); } }
.tx-start { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 0 16px; border-radius: 10px;
  background: #213BE3; color: #fff; font: 600 0.875rem/1 "Geist", ui-sans-serif, system-ui, sans-serif; text-decoration: none;
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.18), 0 1px 2px rgb(0 0 0 / 0.12); transition: background-color 150ms ease; }
@media (hover: hover) and (pointer: fine) { .tx-start:hover { background: #182BBB; } }
.tx-menu { display: none; position: relative; }
.tx-menu summary { list-style: none; display: grid; place-items: center; width: 44px; height: 44px; margin-inline-end: -8px; border-radius: 10px; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.tx-menu summary::-webkit-details-marker { display: none; }
.tx-bars { position: relative; width: 18px; height: 10px; }
.tx-bars::before, .tx-bars::after { content: ""; position: absolute; left: 0; right: 0; height: 1.5px; background: #121419; border-radius: 2px; transition: transform 200ms cubic-bezier(0.23, 1, 0.32, 1); }
.tx-bars::before { top: 0; } .tx-bars::after { bottom: 0; }
.tx-menu[open] .tx-bars::before { transform: translateY(4.25px) rotate(45deg); }
.tx-menu[open] .tx-bars::after { transform: translateY(-4.25px) rotate(-45deg); }
.tx-panel { position: absolute; right: -8px; top: calc(100% + 8px); width: min(280px, calc(100vw - 32px)); background: #fff; border-radius: 16px; padding: 8px;
  box-shadow: 0 0 0 1px rgb(0 0 0 / 0.06), 0 2px 4px -2px rgb(0 0 0 / 0.06), 0 16px 32px -12px rgb(0 0 0 / 0.14), 0 48px 96px -32px rgb(0 0 0 / 0.18); }
.tx-panel a { display: flex; align-items: center; min-height: 44px; padding: 0 12px; border-radius: 8px; font-weight: 500; color: #121419; text-decoration: none; }
.tx-panel a:active { background: #F4F4F5; }
.tx-sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.tx-foot { padding-block: 72px 56px; font-family: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif; border-top: 1px solid rgb(9 9 11 / 0.09); margin-top: 72px; }
.tx-foot-in { display: grid; grid-template-columns: minmax(0, 2fr) repeat(3, minmax(0, 1fr)); gap: 40px 32px; }
.tx-foot .tx-tag { margin: 14px 0 0; color: #4A4D54; max-width: 30ch; font-size: 1rem; line-height: 1.5; }
.tx-foot h2 { margin: 0 0 12px; font: 500 0.75rem/1 "Geist Mono", ui-monospace, Menlo, monospace; letter-spacing: 0.08em; text-transform: uppercase; color: #616369; }
.tx-foot ul { list-style: none; margin: 0; padding: 0; }
.tx-foot li { margin: 0; padding: 0; }
.tx-foot li::marker { content: none; }
.tx-foot li a { display: inline-flex; min-height: 32px; align-items: center; color: #4A4D54; font-size: 0.9375rem; text-decoration: none; transition: color 150ms ease; }
@media (hover: hover) and (pointer: fine) { .tx-foot li a:hover { color: #121419; } }

@media (max-width: 1080px) { .tx-wrap { padding-inline: 32px; } .tx-nav-in { gap: 24px; } }
@media (max-width: 860px) { .tx-links, .tx-signin { display: none; } .tx-menu { display: block; } }
@media (max-width: 900px) { .tx-foot-in { grid-template-columns: 1fr 1fr 1fr; } .tx-foot-brand { grid-column: 1 / -1; } }
@media (max-width: 640px) { .tx-wrap { padding-inline: 16px; } .tx-nav-in { height: 60px; gap: 12px; } .tx-brand { font-size: 1.125rem; }
  .tx-foot-in { grid-template-columns: 1fr 1fr; } .tx-foot li a { min-height: 40px; } }
@media print { .tx-nav { position: static; } }

/* Archived pages (trading angle retired 2026-09-26) */
.tx-archived { background: #F4F4F5; border-bottom: 1px solid rgb(9 9 11 / 0.09); font: 400 0.9375rem/1.5 "Geist", ui-sans-serif, system-ui, sans-serif; color: #4A4D54; }
.tx-archived .tx-wrap { padding-block: 14px; }
.tx-archived b { color: #121419; font-weight: 600; }
.tx-archived a { color: #213BE3; }