/* =============================================================
   TABS & SUB-TABS
   Tab content panels (fade/scale transitions), Settings sub-tabs,
   and Powerlifting sub-tabs.
   Depends on: tokens.css
   ============================================================= */

/* ── Tab content panels ─────────────────────────────────────── */

.tab-content {
  display: none;
  padding: 20px;
  background: linear-gradient(180deg, rgba(15, 21, 18, 0.96), rgba(11, 16, 14, 0.98));
  border: 1px solid var(--border-color);
  box-shadow: var(--shell-shadow);
  border-radius: 10px;
  margin-bottom: 20px;
  color: var(--text-color);
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.tab-content.active {
  display: block !important;
  opacity: 1;
  transform: scale(1);
}

.tab-content.fade-out {
  opacity: 0;
  transform: scale(0.9);
}

/* ── Settings sub-tabs ──────────────────────────────────────── */

.settings-subtabs {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.settings-subtabs::-webkit-scrollbar {
  display: none;
}

.settings-subtab {
  flex-shrink: 0;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--surface-bg);
  color: var(--secondary-text);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  box-shadow: none;
  margin: 0;
  white-space: nowrap;
}

.settings-subtab.active {
  background: var(--primary);
  color: var(--text-color);
  border-color: var(--primary);
}

.settings-subview {
  display: block;
}

.settings-subview.hidden {
  display: none;
}

/* ── Powerlifting sub-tabs ──────────────────────────────────── */

.pl-subtabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.pl-subtab {
  flex-shrink: 0;
  padding: 9px 16px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--surface-bg);
  color: var(--secondary-text);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  box-shadow: none;
  margin: 0;
}

.pl-subtab.active {
  background: var(--primary);
  color: var(--text-color);
  border-color: var(--primary);
}

.pl-subview {
  display: none;
}

.pl-subview.active {
  display: block;
}