/* ═══════════════════════════════════════════════════
   LAYOUT.CSS — Uncle AI
   Shared structural components used on 2+ pages.
   ── back-btn: chat.html + profile.html
   ── bottom-nav: dashboard.html + profile.html
   ═══════════════════════════════════════════════════ */

/* ── BACK BUTTON ── */
.back-btn {
  background: none; border: none; cursor: pointer;
  font-size: 20px; padding: 6px 10px; border-radius: 6px;
  color: #B8947A; transition: background 0.15s;
}
.back-btn:hover { background: #F5E6D3; }

/* ── BOTTOM NAV ── */
.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 64px;
  background: #FDF6EE;
  border-top: 1px solid #E8C9A8;
  display: flex;
  z-index: 50;
}
.nav-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  text-decoration: none;
  color: #B8947A;
  font-size: 11px;
  font-weight: 500;
  padding: 8px 0;
  transition: color 0.15s;
}
.nav-tab:hover { color: #4A3728; }
.nav-tab.active { color: #4A3728; }
.nav-tab .nav-icon { font-size: 22px; line-height: 1; }