/* ============================================================
   nav.css — Sticky navigation bar
   ============================================================ */

#main-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 0;
  height: 50px;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 2px;
  color: var(--accent);
  margin-right: 24px;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-logo span { color: var(--text); }

.nav-tabs {
  display: flex;
  gap: 0;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
  height: 100%;
}
.nav-tabs::-webkit-scrollbar { display: none; }

.nav-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 16px;
  cursor: pointer;
  font-weight: 500;
  font-size: 13px;
  letter-spacing: .4px;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
  white-space: nowrap;
  height: 100%;
}
.nav-tab:hover { color: var(--text); }
.nav-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* API status indicator (top-right of nav) */
.nav-api-status {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  padding-left: 16px;
  flex-shrink: 0;
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.api-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--border);
}
.api-dot.ok      { background: var(--win); }
.api-dot.err     { background: var(--loss); }
.api-dot.loading { background: var(--draw); animation: blink 1s infinite; }
.api-dot.no-key  { background: var(--muted); }

@media (max-width: 600px) {
  #main-nav { padding: 0 10px; }
  .nav-logo  { margin-right: 12px; font-size: 17px; }
  .nav-tab   { padding: 0 10px; font-size: 12px; }
  .nav-api-status { display: none; }
}