.ebt2-calc-host { width: 100%; }

    .ebt2-calc-host .unit-toggle {
      display: flex; align-items: center; gap: 12px;
      margin-bottom: 14px;
      font-family: var(--ys-font-display);
      letter-spacing: 0.1em; text-transform: uppercase;
      font-size: 0.72rem; color: var(--ys-muted);
    }
    .ebt2-calc-host .unit-toggle .switch {
      display: inline-flex;
      border: 1.5px solid var(--ys-line);
      border-radius: 6px; overflow: hidden;
    }
    .ebt2-calc-host .unit-toggle .switch button {
      background: #fff; border: 0; padding: 7px 14px;
      font-family: var(--ys-font-display);
      letter-spacing: 0.1em; text-transform: uppercase;
      font-size: 0.7rem; font-weight: 600;
      color: var(--ys-muted); cursor: pointer;
    }
    .ebt2-calc-host .unit-toggle .switch button.active {
      background: var(--ys-navy); color: #fff;
    }

    .ebt2-calc-host .lap-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 12px;
      margin-bottom: 16px;
    }
    @media (max-width: 1100px) { .ebt2-calc-host .lap-grid { grid-template-columns: repeat(3, 1fr); } }
    @media (max-width: 720px)  { .ebt2-calc-host .lap-grid { grid-template-columns: repeat(2, 1fr); } }
    @media (max-width: 480px)  { .ebt2-calc-host .lap-grid { grid-template-columns: 1fr; } }

    .ebt2-calc-host .lap-block {
      background: var(--ys-bg-soft);
      border: 1px solid var(--ys-line);
      border-radius: 10px;
      padding: 12px;
    }
    .ebt2-calc-host .lap-tag {
      background: var(--ys-navy);
      color: #fff;
      font-family: var(--ys-font-display);
      letter-spacing: 0.1em; text-transform: uppercase;
      font-size: 0.78rem;
      padding: 6px 0;
      text-align: center;
      border-radius: 6px;
      margin-bottom: 10px;
    }
    .ebt2-calc-host .lap-block label {
      display: block;
      font-family: var(--ys-font-display);
      text-transform: uppercase;
      letter-spacing: 0.08em;
      font-size: 0.66rem;
      color: var(--ys-navy);
      margin: 8px 0 4px;
    }
    .ebt2-calc-host .lap-block input[type="number"] {
      width: 100%;
      padding: 8px 10px;
      border: 1.5px solid var(--ys-line);
      border-radius: 5px;
      font-size: 0.96rem;
      font-family: var(--ys-font-body);
      background: #fff;
      color: var(--ys-navy);
      box-sizing: border-box;
      text-align: center;
      transition: border-color 0.15s ease, box-shadow 0.15s ease;
    }
    .ebt2-calc-host .lap-block input:focus {
      outline: none;
      border-color: var(--wf-coral);
      box-shadow: 0 0 0 2px rgba(250, 119, 60, 0.18);
    }
    .ebt2-calc-host .lap-pace {
      margin-top: 8px;
      padding: 6px;
      background: #fff;
      border-radius: 5px;
      text-align: center;
      font-size: 0.78rem;
      color: var(--ys-muted);
      line-height: 1.4;
      min-height: 2.4em;
    }
    .ebt2-calc-host .lap-pace strong { color: var(--ys-navy); }
    .ebt2-calc-host .lap-help {
      font-size: 0.7rem;
      color: var(--ys-muted);
      margin-top: 3px;
      text-align: center;
    }

    .ebt2-calc-host .err {
      color: #c93939;
      background: rgba(201, 57, 57, 0.08);
      border-left: 4px solid #c93939;
      padding: 10px 14px;
      margin-top: 12px;
      border-radius: 6px;
      font-size: 0.92rem;
      display: none;
    }
    .ebt2-calc-host .err.active { display: block; }

    .ebt2-calc-host .chart-wrap {
      margin-top: 18px;
      padding: 18px;
      background: #fff;
      border: 1px solid var(--ys-line);
      border-radius: 12px;
    }
    .ebt2-calc-host .chart-title {
      font-family: var(--ys-font-display);
      letter-spacing: 0.1em; text-transform: uppercase;
      font-size: 0.82rem;
      color: var(--wf-coral);
      margin-bottom: 12px;
      text-align: center;
    }
    .ebt2-calc-host #ebt2Chart { width: 100%; height: 380px; }
    .ebt2-calc-host .chart-legend {
      display: flex; flex-wrap: wrap; gap: 14px;
      justify-content: center;
      margin-top: 12px;
      font-size: 0.86rem;
    }
    .ebt2-calc-host .legend-item {
      display: inline-flex; align-items: center; gap: 6px;
      color: var(--ys-navy);
    }
    .ebt2-calc-host .legend-swatch {
      display: inline-block;
      width: 18px; height: 4px;
      border-radius: 2px;
    }