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

    .arp-calc-host .perf-grid {
      display: grid; grid-template-columns: 1fr; gap: 12px;
      background: var(--ys-bg-soft);
      padding: 18px;
      border-radius: 10px;
      margin-bottom: 16px;
    }

    .arp-calc-host .perf-row {
      display: grid;
      grid-template-columns: 100px 1fr;
      gap: 14px;
      align-items: center;
      padding: 12px;
      background: #fff;
      border: 1px solid var(--ys-line);
      border-radius: 8px;
    }
    @media (max-width: 540px) { .arp-calc-host .perf-row { grid-template-columns: 80px 1fr; gap: 10px; padding: 10px; } }

    .arp-calc-host .perf-tag {
      font-family: var(--ys-font-display);
      letter-spacing: 0.08em;
      text-transform: uppercase;
      font-size: 0.86rem;
      font-weight: 700;
      color: var(--wf-coral);
      text-align: center;
    }
    .arp-calc-host .perf-tag small {
      display: block;
      color: var(--ys-muted);
      font-weight: 400;
      font-size: 0.72rem;
      letter-spacing: 0.04em;
      margin-top: 2px;
    }
    .arp-calc-host .perf-input {
      display: flex; align-items: center; gap: 6px;
    }
    .arp-calc-host .perf-input input {
      width: 80px; padding: 9px 10px;
      border: 1.5px solid var(--ys-line);
      border-radius: 6px;
      font-size: 1rem;
      font-family: var(--ys-font-body);
      background: #fff;
      color: var(--ys-navy);
      text-align: center;
      box-sizing: border-box;
    }
    .arp-calc-host .perf-input input:focus {
      outline: none;
      border-color: var(--wf-coral);
      box-shadow: 0 0 0 3px rgba(250, 119, 60, 0.18);
    }
    .arp-calc-host .perf-input span {
      font-family: var(--ys-font-display);
      font-weight: 700;
      color: var(--ys-muted);
    }
    .arp-calc-host .pace-hint {
      margin-top: 6px;
      font-size: 0.78rem;
      color: var(--ys-muted);
    }

    .arp-calc-host .target-block {
      display: grid;
      grid-template-columns: 1fr;
      gap: 12px;
      background: var(--ys-bg-soft);
      padding: 18px;
      border-radius: 10px;
      margin-bottom: 16px;
    }
    .arp-calc-host label {
      display: block;
      font-family: var(--ys-font-display);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      font-size: 0.72rem;
      color: var(--ys-navy);
      margin-bottom: 6px;
    }
    .arp-calc-host select {
      width: 100%;
      padding: 10px 12px;
      border: 1.5px solid var(--ys-line);
      border-radius: 6px;
      font-size: 0.96rem;
      font-family: var(--ys-font-body);
      background: #fff;
      color: var(--ys-navy);
      box-sizing: border-box;
    }
    .arp-calc-host select:focus {
      outline: none;
      border-color: var(--wf-coral);
      box-shadow: 0 0 0 3px rgba(250, 119, 60, 0.18);
    }

    .arp-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;
    }
    .arp-calc-host .err.active { display: block; }

    .arp-calc-host .results-grid {
      display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
      margin-top: 18px;
    }
    @media (max-width: 600px) { .arp-calc-host .results-grid { grid-template-columns: 1fr; } }

    .arp-calc-host .result-tile {
      background: #fff;
      border: 1px solid var(--ys-line);
      border-radius: 10px;
      padding: 18px;
      text-align: center;
    }
    .arp-calc-host .result-tile.featured {
      background: var(--ys-navy); border-color: var(--ys-navy);
    }
    .arp-calc-host .result-tile.featured .result-label,
    .arp-calc-host .result-tile.featured .result-value,
    .arp-calc-host .result-tile.featured .result-aux { color: #fff; }
    .arp-calc-host .result-tile.featured .result-aux { color: rgba(255,255,255,0.7); }
    .arp-calc-host .result-label {
      display: block;
      font-family: var(--ys-font-display);
      text-transform: uppercase;
      letter-spacing: 0.12em;
      font-size: 0.72rem;
      color: var(--ys-muted);
      margin-bottom: 6px;
    }
    .arp-calc-host .result-value {
      display: block;
      font-family: var(--ys-font-display);
      font-weight: 700;
      font-size: 1.6rem;
      color: var(--ys-navy);
      letter-spacing: 0.02em;
    }
    .arp-calc-host .result-aux {
      display: block;
      font-size: 0.82rem;
      color: var(--ys-muted);
      margin-top: 4px;
    }
    .arp-calc-host .flag-chip {
      display: inline-flex;
      gap: 4px;
      align-items: center;
      margin-left: 8px;
      padding: 2px 10px;
      background: rgba(250, 119, 60, 0.18);
      border-radius: 999px;
      font-family: var(--ys-font-display);
      letter-spacing: 0.06em; text-transform: uppercase;
      font-size: 0.66rem;
      font-weight: 700;
      color: var(--wf-coral);
      vertical-align: middle;
    }

    .arp-calc-host .zones-block {
      margin-top: 22px;
    }
    .arp-calc-host .zones-block h4 {
      font-family: var(--ys-font-display);
      letter-spacing: 0.12em; text-transform: uppercase;
      font-size: 0.78rem;
      color: var(--wf-coral);
      margin: 0 0 12px;
    }
    .arp-calc-host .zone-row {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 14px;
      padding: 9px 14px;
      background: #fff;
      border: 1px solid var(--ys-line);
      border-left: 4px solid var(--ys-navy);
      margin-bottom: 6px;
      border-radius: 6px;
      font-size: 0.92rem;
      align-items: center;
    }
    .arp-calc-host .zone-row.featured { border-left-color: var(--wf-coral); }
    .arp-calc-host .zone-name {
      font-family: var(--ys-font-display);
      letter-spacing: 0.04em;
      color: var(--ys-navy);
      font-weight: 600;
    }
    .arp-calc-host .zone-name small {
      display: block;
      font-family: var(--ys-font-body);
      font-weight: 400;
      color: var(--ys-muted);
      font-size: 0.78rem;
      letter-spacing: 0;
      margin-top: 2px;
    }
    .arp-calc-host .zone-pace {
      font-family: var(--ys-font-display);
      color: var(--ys-navy);
      font-weight: 700;
      letter-spacing: 0.02em;
      text-align: right;
      white-space: nowrap;
    }
    .arp-calc-host .zone-pace small {
      display: block;
      color: var(--ys-muted);
      font-size: 0.74rem;
      letter-spacing: 0;
      font-weight: 400;
    }