/* ==========================================================================
   Navigation + responsive breakpoints
   ========================================================================== */

/* ---------- Bottom nav (mobile default) ---------- */

.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  background: var(--surface);
  border-top: 1px solid var(--grey-line);
  padding: 6px calc(4px + env(safe-area-inset-left)) calc(6px + env(safe-area-inset-bottom)) calc(4px + env(safe-area-inset-right));
  z-index: 40;
}

.bottom-nav__item {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  background: none; border: none; color: var(--grey-mid);
  padding: 6px 2px; border-radius: var(--radius-sm);
  font-size: 0.66rem; font-weight: 600;
  min-height: 48px;
}
.bottom-nav__item.active { color: var(--primary-dark); }
.bottom-nav__item:hover { background: var(--primary-pale); }

/* ---------- Side nav (tablet/desktop) ---------- */

.side-nav {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 220px;
  flex-shrink: 0;
  padding: 20px 12px;
  background: var(--surface);
  border-right: 1px solid var(--grey-line);
}

.side-nav__brand { display: flex; align-items: center; gap: 10px; padding: 6px 10px 22px; }
.side-nav__brand strong { font-size: 1rem; color: var(--primary-dark); }

.side-nav__item {
  display: flex; align-items: center; gap: 12px;
  background: none; border: none; color: var(--text-soft);
  padding: 11px 12px; border-radius: var(--radius-sm);
  font-size: 0.88rem; font-weight: 600; text-align: left;
}
.side-nav__item.active { background: var(--primary-pale); color: var(--primary-dark); }
.side-nav__item:hover { background: var(--primary-pale); }

.app-shell { display: flex; flex: 1; }

/* ---------- Breakpoints ---------- */

@media (min-width: 768px) {
  .bottom-nav { display: none; }
  .side-nav { display: flex; }
  main#route-outlet { padding: 28px 32px 40px; max-width: 900px; }
  .app-header { display: none; }
}

@media (min-width: 1024px) {
  main#route-outlet { padding: 36px 48px 48px; }
}

@media (max-width: 380px) {
  .results-grid { grid-template-columns: repeat(2, 1fr); }
  .breakdown__row { grid-template-columns: 84px 1fr auto; }
}

/* ---------- Print ---------- */

@media print {
  .bottom-nav, .side-nav, .app-header, .action-bar, .list-toolbar, #splash, .toast, .overlay { display: none !important; }
  main#route-outlet { padding: 0; }
  body { background: var(--white); }
  .card { box-shadow: none; border: 1px solid #ccc; }
}