:root { color-scheme: dark; }
  body { margin: 0; font: 16px/1.5 system-ui, sans-serif; background: #11131a; color: #e6e8ee; }
  main { max-width: 640px; margin: 8vh auto; padding: 0 24px; }
  h1 { font-size: 14px; letter-spacing: .2em; text-transform: uppercase; color: #7a8095; }
  .card { background: #1a1d27; border: 1px solid #272b38; border-radius: 14px; padding: 28px; }
  label { display: block; font-size: 13px; color: #9aa0b4; margin: 16px 0 6px; }
  input { width: 100%; box-sizing: border-box; padding: 10px 12px; background: #11131a;
          border: 1px solid #2d3242; border-radius: 8px; color: #e6e8ee; font: inherit; }
  button { margin-top: 22px; padding: 11px 18px; border: 0; border-radius: 8px;
           background: #4c6ef5; color: #fff; font: inherit; font-weight: 600; cursor: pointer; }
  button:disabled { background: #2d3242; color: #6a7186; cursor: not-allowed; }
  .timer { font-size: 56px; font-weight: 700; font-variant-numeric: tabular-nums; margin: 8px 0 4px; }
  .action { font-size: 22px; font-weight: 600; }
  .meta { color: #9aa0b4; }
  .pill { display: inline-block; font-size: 12px; letter-spacing: .15em; text-transform: uppercase;
          color: #7a8095; border: 1px solid #272b38; border-radius: 999px; padding: 3px 10px; }
  .ev { margin-top: 18px; border-top: 1px solid #272b38; padding-top: 14px; }
  .ev .now { font-size: 14px; color: #cdd2e0; }
  .ev .health-ok { color: #5fd08a; }
  .ev .health-bad { color: #e0b15f; }
  .buckets { list-style: none; padding: 0; margin: 10px 0 0; font-size: 13px; color: #9aa0b4; }
  .buckets li { display: flex; justify-content: space-between; padding: 2px 0; font-variant-numeric: tabular-nums; }
  .switches { font-size: 13px; color: #7a8095; margin-top: 8px; }
  .drift { background: #2a1d22; border: 1px solid #5a2d39; border-radius: 10px; padding: 14px 16px; margin-bottom: 16px; }
  .drift-title { font-weight: 700; color: #f0a3b1; }
  .drift-reason { color: #e6c0c8; margin: 4px 0 10px; }
  .drift-actions button { margin: 0 8px 0 0; padding: 8px 14px; }
  .drift-actions button.secondary { background: #2d3242; color: #cdd2e0; }
  .drift-hint { font-size: 12px; color: #7a8095; margin-bottom: 10px; }
  .nudge { background: #1d2630; border: 1px solid #2f4255; border-radius: 10px; padding: 12px 14px; margin-bottom: 16px; }
  .nudge-title { font-weight: 600; color: #8fb6d9; }
  .nudge-msg { color: #c2d2e0; margin: 4px 0 8px; }
  .nudge-actions button { padding: 6px 12px; background: #2d3242; color: #cdd2e0; }