/* ============================================================
   TABS — sticky nav + panel switching
   ============================================================ */

.tabs-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15,22,41,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 0 24px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.tabs-nav::-webkit-scrollbar { display: none; }

.tabs-nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  gap: 2px;
}

.tab-btn {
  padding: 0 14px;
  height: var(--tab-h);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.tab-btn .tab-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  font-size: 0.65rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: var(--transition);
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--gold); border-bottom-color: var(--gold); }
.tab-btn.active .tab-num {
  background: rgba(200,168,78,0.15);
  border-color: rgba(200,168,78,0.4);
  color: var(--gold);
}

/* Panels */
.tab-panel {
  display: none;
  animation: fadeIn 0.35s ease;
}
.tab-panel.active { display: block; }

/* Placeholder panel */
.tab-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 80px 24px;
  text-align: center;
  color: var(--text-dim);
}
.tab-placeholder .ph-icon { font-size: 3rem; opacity: 0.4; }
.tab-placeholder h3 { font-size: 1.1rem; color: var(--text-muted); font-weight: 700; }
.tab-placeholder p  { font-size: 0.88rem; max-width: 400px; }