/* ===== BOTTOM NAV ===== */

.bottomnav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--nav-bg);
  border-top: 0.5px solid var(--nav-border);
  display: flex;
  padding-bottom: env(safe-area-inset-bottom);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  z-index: 1000;
  transition: background var(--duration) var(--ease);
}

.bnav {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 4px 4px;
  font-size: 10px;
  color: var(--label4);
  font-weight: 500;
  gap: 2px;
  cursor: pointer;
  position: relative;
  user-select: none;
  -webkit-user-select: none;
  transition: color var(--duration) var(--ease);
  -webkit-tap-highlight-color: transparent;
}

.bnav.active { color: var(--accent); }

.bnav svg {
  width: 24px; height: 24px;
  stroke: currentColor; fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.22s var(--spring);
}
.bnav.active svg { transform: scale(1.12); }

.bnav-dot {
  position: absolute;
  top: 3px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--duration) var(--ease);
}
.bnav.active .bnav-dot { opacity: 1; }

/* Icon-only tab (home in trip mode) */
.bnav.icon-only { flex: 0 0 52px; }