:root { color-scheme: light; font-family: Arial, sans-serif; color: #18212f; background: #f3f6fa; }
    body { margin: 0; padding: 24px 14px; }
    main { max-width: 760px; margin: auto; }
    h1 { margin-bottom: 4px; } .sub { color: #586579; margin-top: 0; }
    .card { background: white; padding: 20px; border-radius: 14px; box-shadow: 0 2px 12px #18212f12; margin: 16px 0; }
    form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
    label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
    input, select, textarea, button { font: inherit; padding: 11px; border: 1px solid #cbd3df; border-radius: 8px; }
    textarea { min-height: 42px; resize: vertical; } .wide { grid-column: 1 / -1; }
    button { background: #1769aa; color: white; border: 0; font-weight: 700; cursor: pointer; }
    button:disabled { opacity: .6; cursor: wait; } #status { min-height: 20px; }
    .entry { border-top: 1px solid #e5e9ef; padding: 12px 0; display: flex; justify-content: space-between; gap: 12px; }
    .muted { color: #667085; font-size: 13px; }
    .summary-filters { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
    .summary-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 16px; }
    .metric { background: #f3f6fa; border-radius: 10px; padding: 14px; }
    .metric-label { color: #586579; font-size: 13px; }
    .metric-value { font-size: 20px; font-weight: 700; margin-top: 6px; }
    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
    .check-row { display: flex; align-items: center; gap: 9px; }
    .check-row input { width: 18px; height: 18px; margin: 0; }
    .consumption-item { border-top: 1px solid #e5e9ef; padding: 12px 0; }
    .entry-actions { display: flex; align-items: center; gap: 8px; }
    .edit-button, .delete-button { min-height: 44px; padding: 10px; }
    .edit-button { color: #1769aa; background: #eaf3fa; }
    .delete-button { background: #b42318; color: white; }
    button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid #155eef; outline-offset: 2px; }
    dialog { width: min(420px, calc(100% - 40px)); border: 0; border-radius: 14px; padding: 22px; color: #18212f; box-shadow: 0 18px 48px #18212f55; }
    dialog::backdrop { background: #18212f88; }
    .dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }
    .dialog-actions button { min-height: 44px; }
    .cancel-button { background: #eaf3fa; color: #1769aa; }
    .calc-section { border-top: 1px solid #e5e9ef; margin-top: 18px; padding-top: 8px; }
    .calc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
    .result-panel { margin-top: 20px; padding: 18px; border-radius: 12px; background: #eaf4ed; }
    .result-panel[data-result="gas"] { background: #edf3fa; }
    .result-panel[data-result="tie"] { background: #f4f1e8; }
    .recommendation { font-size: 22px; font-weight: 800; color: #176b37; }
    .result-panel[data-result="gas"] .recommendation { color: #1769aa; }
    .result-panel[data-result="tie"] .recommendation { color: #7a5a00; }
    .cost-row { display: flex; justify-content: space-between; gap: 12px; border-top: 1px solid #d7e0d9; padding: 9px 0; }
    .break-even-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 14px; }
    .break-even-item { padding: 12px; border-radius: 9px; background: #f3f6fa; }
    .calc-help { min-height: 18px; }
    @media(max-width: 520px) {
      form, .calc-grid, .summary-filters, .summary-grid, .break-even-grid { grid-template-columns: 1fr; }
      .wide { grid-column: auto; }
      .entry { align-items: flex-start; flex-wrap: wrap; }
      .entry > div:first-child { min-width: 0; }
      .entry-actions { flex: 1 1 100%; flex-direction: row; align-items: center; justify-content: flex-end; flex-wrap: wrap; }
      .entry-actions > strong { white-space: nowrap; }
    }
.settings-trigger { padding: 8px 12px; margin: 0 0 8px; font-size: 14px; background: #eaf3fa; color: #1769aa; }
body { padding-top: max(24px, env(safe-area-inset-top)); padding-bottom: max(24px, env(safe-area-inset-bottom)); }