/* Thistle Capital site header.
   Self-contained: no framework, no external fonts, no build step. Scoped under
   .tc- so it cannot collide with the chart application's own styles, and it keeps
   its own dark surface in both light and dark app themes so the brand bar reads
   consistently. */

.tc-header{
  --tc-accent:#3ed2a7;
  --tc-bg:#0b0f0e;
  --tc-bg-2:#141a19;
  --tc-ink:#f2f5f4;
  --tc-ink-2:#9aa5a2;
  --tc-line:rgba(255,255,255,.10);
  position:sticky; top:0; z-index:1000;
  background:var(--tc-bg); color:var(--tc-ink);
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
  border-bottom:1px solid var(--tc-line);
}

.tc-skip{position:absolute;left:-9999px;top:0;background:var(--tc-accent);color:#04120d;
  padding:10px 16px;border-radius:0 0 8px 0;font-size:14px;font-weight:600;z-index:2}
.tc-skip:focus{left:0}

.tc-bar{max-width:1180px;margin:0 auto;padding:0 22px;
  display:flex;align-items:center;gap:24px;min-height:64px}

.tc-brand{display:inline-flex;align-items:center;flex:0 0 auto;text-decoration:none}
.tc-brand img{display:block;height:34px;width:auto}
.tc-wordmark{color:var(--tc-ink);font-weight:700;letter-spacing:.14em;font-size:15px}

.tc-nav{display:flex;align-items:center;gap:22px;margin-left:auto}
.tc-menu{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.tc-item{position:relative}

.tc-link{
  display:inline-flex;align-items:center;gap:5px;
  background:none;border:0;cursor:pointer;text-decoration:none;
  color:var(--tc-ink-2);font:inherit;font-size:13px;font-weight:600;
  letter-spacing:.06em;text-transform:uppercase;
  padding:21px 12px;line-height:1;
  border-bottom:2px solid transparent;
}
.tc-link:hover,.tc-link:focus-visible{color:var(--tc-ink)}
.tc-item.open > .tc-link{color:var(--tc-ink)}
.tc-link[aria-current="page"]{color:var(--tc-accent);border-bottom-color:var(--tc-accent)}
.tc-caret{color:var(--tc-accent);font-weight:700;font-size:.78em;
  vertical-align:.42em;line-height:0;margin-left:1px}
.tc-chev{width:10px;height:6px;fill:none;stroke:currentColor;stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round;transition:transform .16s ease;opacity:.75}
.tc-item.open .tc-chev{transform:rotate(180deg)}

.tc-sub{
  position:absolute;top:100%;left:0;min-width:262px;
  background:var(--tc-bg-2);border:1px solid var(--tc-line);
  border-radius:0 0 12px 12px;border-top:2px solid var(--tc-accent);
  box-shadow:0 18px 44px rgba(0,0,0,.45);
  padding:8px;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .14s ease,transform .14s ease,visibility .14s;
}
.tc-item.open .tc-sub{opacity:1;visibility:visible;transform:translateY(0)}
.tc-sub ul{list-style:none;margin:0;padding:0}
.tc-sub a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 12px;border-radius:8px;text-decoration:none;
  color:var(--tc-ink-2);font-size:13.5px;line-height:1.35;
}
.tc-sub a:hover,.tc-sub a:focus-visible{background:rgba(62,210,167,.10);color:var(--tc-ink)}
.tc-sub a.tc-lead{color:var(--tc-ink);font-weight:620}
.tc-sub a[aria-current="page"]{color:var(--tc-accent);background:rgba(62,210,167,.10)}
.tc-ext{color:var(--tc-accent);font-size:11px;opacity:.9}
.tc-group{
  padding:11px 12px 5px;font-size:10.5px;font-weight:700;letter-spacing:.13em;
  text-transform:uppercase;color:var(--tc-accent);opacity:.85;
}
.tc-group:first-child{padding-top:5px}

.tc-cta{
  flex:0 0 auto;text-decoration:none;white-space:nowrap;
  background:var(--tc-accent);color:#04120d;
  font-size:13px;font-weight:700;letter-spacing:.03em;
  padding:9px 16px;border-radius:999px;transition:filter .15s ease;
}
.tc-cta:hover{filter:brightness(1.08)}

.tc-tagline{
  max-width:1180px;margin:0 auto;padding:0 22px 10px;
  font-size:12px;color:var(--tc-ink-2);letter-spacing:.02em;
}

.tc-burger{display:none;background:none;border:0;cursor:pointer;
  width:40px;height:40px;padding:9px;margin-left:auto}
.tc-burger span{display:block;height:2px;background:var(--tc-ink);border-radius:2px;
  margin:4px 0;transition:transform .18s ease,opacity .18s ease}
.tc-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.tc-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.tc-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---- mobile ---- */
@media (max-width:900px){
  .tc-header{position:relative}
  .tc-burger{display:block}
  .tc-nav{
    display:none;width:100%;margin:0;
    flex-direction:column;align-items:stretch;gap:0;
    border-top:1px solid var(--tc-line);padding:8px 0 16px;
  }
  .tc-nav.open{display:flex}
  .tc-bar{flex-wrap:wrap;padding-bottom:0}
  .tc-menu{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .tc-link{width:100%;justify-content:space-between;padding:13px 22px;border-bottom:0}
  .tc-sub{
    position:static;opacity:1;visibility:visible;transform:none;
    display:none;box-shadow:none;border:0;border-radius:0;
    background:rgba(255,255,255,.03);padding:4px 10px 10px;min-width:0;
  }
  .tc-item.open .tc-sub{display:block}
  .tc-sub a{padding:10px 14px}
  .tc-cta{margin:12px 22px 0;text-align:center;padding:12px 16px}
  .tc-tagline{padding:10px 22px 12px}
}

@media (prefers-reduced-motion:reduce){
  .tc-sub,.tc-chev,.tc-burger span,.tc-cta{transition:none}
}