html, body {
  max-width: 100%;
  overflow-x: hidden;
}

*, *::before, *::after {
  box-sizing: border-box;
  min-width: 0;
}

img, svg, canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-shell,
#dashboard,
.app-page,
.panel,
.table-wrap,
.virtual-table-wrap,
.score-history-chart,
.backtest-chart {
  width: 100%;
  max-width: 100%;
}

.app-page {
  display: grid;
  gap: 16px;
}

.app-page[hidden] {
  display: none !important;
}

.app-page-tabs {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid !important;
  grid-template-columns: repeat(5, minmax(0, 1fr)) !important;
  align-items: stretch;
  gap: 6px;
  width: 100%;
  margin: 0 0 16px;
  padding: 8px;
  border: 1px solid rgba(148, 163, 184, .22);
  border-radius: 16px;
  background: rgba(15, 23, 42, .94);
  backdrop-filter: blur(12px);
}

.app-nav-button {
  appearance: none;
  -webkit-appearance: none;
  display: flex !important;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: 100% !important;
  min-width: 0 !important;
  min-height: 44px;
  height: 44px;
  margin: 0 !important;
  padding: 8px 4px !important;
  border: 0 !important;
  border-radius: 11px;
  background: transparent;
  color: #94a3b8;
  cursor: pointer;
  font: inherit;
  line-height: 1;
  white-space: nowrap;
}

.app-nav-button.active {
  background: #2563eb;
  color: #fff;
}

.app-nav-button span {
  flex: 0 0 auto;
  font-size: 1rem;
  line-height: 1;
}

.app-nav-button strong {
  min-width: 0;
  font-size: .82rem;
  line-height: 1;
  white-space: nowrap;
}

.app-bottom-nav {
  display: none;
}

.table-wrap,
.virtual-table-wrap {
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 760px) {
  body {
    width: 100%;
    padding-bottom: calc(72px + env(safe-area-inset-bottom));
  }

  .app-header {
    padding: 10px 12px;
    gap: 8px;
  }

  .app-header h1 {
    font-size: 1.18rem;
  }

  .page-shell {
    padding: 8px;
  }

  #dashboard,
  .app-page {
    gap: 8px;
  }

  .app-page-tabs {
    display: none !important;
  }

  .app-bottom-nav {
    position: fixed !important;
    right: 0 !important;
    bottom: 0 !important;
    left: 0 !important;
    z-index: 1000 !important;
    display: grid !important;
    grid-template-columns: repeat(5, minmax(0, 1fr)) !important;
    align-items: stretch;
    gap: 2px;
    width: 100% !important;
    margin: 0 !important;
    padding: 6px 6px calc(6px + env(safe-area-inset-bottom));
    border: 0;
    border-top: 1px solid rgba(148, 163, 184, .22);
    border-radius: 0;
    background: rgba(15, 23, 42, .97);
    backdrop-filter: blur(14px);
  }

  .app-bottom-nav .app-nav-button {
    flex-direction: column;
    gap: 3px;
    width: 100% !important;
    min-width: 0 !important;
    min-height: 54px;
    height: 54px;
    padding: 5px 1px !important;
    border-radius: 10px;
  }

  .app-bottom-nav .app-nav-button span {
    font-size: 1.05rem;
    line-height: 1;
  }

  .app-bottom-nav .app-nav-button strong {
    display: block;
    max-width: 100%;
    overflow: hidden;
    font-size: .67rem;
    line-height: 1.1;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .panel {
    margin: 0 !important;
    padding: 12px !important;
    border-radius: 13px;
  }

  .panel h2 { font-size: 1rem; }
  .panel h3 { font-size: .9rem; }
  .eyebrow { font-size: .64rem; }

  .summary-grid,
  .daily-report-grid,
  .analysis-grid,
  .virtual-trading-summary,
  .backtest-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 6px !important;
  }

  .summary-card,
  .daily-report-grid > article,
  .analysis-grid > article,
  .virtual-trading-summary > article,
  .backtest-summary > article {
    padding: 9px !important;
  }

  .two-column-grid,
  .daily-report-detail,
  .analysis-detail-grid,
  .virtual-trading-layout,
  .discovery-layout {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
  }

  .watchlist-filter-row,
  .alert-form-grid,
  .virtual-trading-form-grid,
  .stock-discovery-controls,
  .score-history-controls,
  .backtest-controls {
    grid-template-columns: 1fr 1fr !important;
    gap: 7px !important;
  }

  .watchlist-filter-row > label:first-child,
  .stock-discovery-controls > label:first-child {
    grid-column: 1 / -1;
  }

  input, select, textarea, button { max-width: 100%; }

  .recommendation-grid,
  .discovery-results,
  .alert-list,
  .virtual-history-list,
  .score-history-timeline {
    display: flex !important;
    gap: 7px !important;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 3px;
  }

  .recommendation-card,
  .discovery-card,
  .alert-item,
  .virtual-history-item,
  .score-history-entry {
    flex: 0 0 min(84vw, 320px);
    scroll-snap-align: start;
  }

  .table-wrap table,
  .virtual-table-wrap table {
    min-width: 680px !important;
    width: max-content !important;
  }

  .table-wrap th,
  .table-wrap td,
  .virtual-table-wrap th,
  .virtual-table-wrap td {
    white-space: nowrap;
    padding: 7px 8px !important;
    font-size: .76rem;
  }

  .score-history-chart svg,
  .backtest-chart svg {
    width: 100% !important;
    height: auto !important;
  }
}

@media (max-width: 420px) {
  .page-shell { padding: 6px; }
  .panel { padding: 10px !important; }

  .watchlist-filter-row,
  .alert-form-grid,
  .virtual-trading-form-grid,
  .stock-discovery-controls,
  .score-history-controls,
  .backtest-controls {
    grid-template-columns: 1fr !important;
  }

  .watchlist-filter-row > label:first-child,
  .stock-discovery-controls > label:first-child {
    grid-column: auto;
  }

  .app-bottom-nav .app-nav-button strong {
    font-size: .62rem;
  }
}