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

    .gsp-calc-host .layout {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 18px;
    }
    @media (max-width: 820px) { .gsp-calc-host .layout { grid-template-columns: 1fr; } }

    .gsp-calc-host .panel {
      background: var(--ys-bg-soft);
      border-radius: 10px;
      padding: 18px;
    }
    .gsp-calc-host .panel.results {
      background: var(--ys-navy); color: #fff;
    }

    .gsp-calc-host .panel h3 {
      font-family: var(--ys-font-display);
      letter-spacing: 0.12em; text-transform: uppercase;
      font-size: 0.78rem;
      color: var(--wf-coral);
      margin: 0 0 14px;
    }
    .gsp-calc-host .panel.results h3 { color: var(--wf-coral); }

    .gsp-calc-host label {
      display: block;
      font-family: var(--ys-font-display);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      font-size: 0.7rem;
      color: var(--ys-navy);
      margin-bottom: 6px;
    }
    .gsp-calc-host .field {
      margin-bottom: 14px;
    }
    .gsp-calc-host .row {
      display: flex; align-items: stretch;
    }
    .gsp-calc-host input[type="number"],
    .gsp-calc-host select {
      width: 100%;
      padding: 9px 12px;
      border: 1.5px solid var(--ys-line);
      border-radius: 6px;
      font-size: 0.94rem;
      font-family: var(--ys-font-body);
      background: #fff;
      color: var(--ys-navy);
      box-sizing: border-box;
      transition: border-color 0.15s ease, box-shadow 0.15s ease;
    }
    .gsp-calc-host input:focus,
    .gsp-calc-host select:focus {
      outline: none;
      border-color: var(--wf-coral);
      box-shadow: 0 0 0 3px rgba(250, 119, 60, 0.18);
    }
    .gsp-calc-host .row .unit {
      padding: 0 12px;
      background: var(--ys-navy);
      color: #fff;
      font-family: var(--ys-font-display);
      letter-spacing: 0.06em;
      font-size: 0.74rem;
      display: flex; align-items: center;
      border-radius: 0 6px 6px 0;
      white-space: nowrap;
      min-width: 60px; justify-content: center;
    }
    .gsp-calc-host .row input,
    .gsp-calc-host .row select {
      border-radius: 6px 0 0 6px;
    }

    .gsp-calc-host .grid-2 {
      display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
    }
    @media (max-width: 480px) { .gsp-calc-host .grid-2 { grid-template-columns: 1fr; } }

    .gsp-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);
    }
    .gsp-calc-host .unit-toggle .switch {
      display: inline-flex;
      border: 1.5px solid var(--ys-line);
      border-radius: 6px;
      overflow: hidden;
    }
    .gsp-calc-host .unit-toggle .switch button {
      background: #fff; border: 0; padding: 6px 12px;
      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;
    }
    .gsp-calc-host .unit-toggle .switch button.active {
      background: var(--ys-navy); color: #fff;
    }

    .gsp-calc-host .adv-toggle {
      display: flex; justify-content: space-between; align-items: center;
      padding: 8px 0;
      font-family: var(--ys-font-display);
      text-transform: uppercase;
      letter-spacing: 0.12em;
      font-size: 0.78rem;
      color: var(--wf-coral);
      margin: 6px 0 12px;
      border-top: 1px solid var(--ys-line);
      padding-top: 16px;
    }
    .gsp-calc-host .adv-toggle button {
      background: transparent; border: 0;
      font-family: var(--ys-font-display);
      letter-spacing: 0.1em; text-transform: uppercase;
      font-size: 0.72rem; font-weight: 600;
      color: var(--ys-navy);
      cursor: pointer;
      padding: 6px 12px;
      border: 1.5px solid var(--ys-line);
      border-radius: 6px;
      background: #fff;
    }
    .gsp-calc-host .adv-toggle button.active {
      background: var(--wf-coral);
      color: #fff;
      border-color: var(--wf-coral);
    }
    .gsp-calc-host .adv-fields { display: none; }
    .gsp-calc-host .adv-fields.active { display: block; }

    .gsp-calc-host .res-row {
      display: flex; justify-content: space-between; align-items: baseline;
      padding: 12px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.12);
      gap: 14px;
    }
    .gsp-calc-host .res-row:last-of-type { border-bottom: 0; }
    .gsp-calc-host .res-label {
      font-family: var(--ys-font-display);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      font-size: 0.74rem;
      color: rgba(255, 255, 255, 0.7);
    }
    .gsp-calc-host .res-value {
      font-family: var(--ys-font-display);
      font-weight: 700;
      font-size: 1.2rem;
      color: #fff;
      letter-spacing: 0.02em;
      text-align: right;
    }
    .gsp-calc-host .res-value small {
      display: block; margin-top: 2px;
      font-size: 0.78rem;
      font-weight: 500;
      color: rgba(255, 255, 255, 0.6);
      letter-spacing: 0;
      text-transform: none;
    }
    .gsp-calc-host .res-row.featured .res-value {
      color: var(--wf-coral);
      font-size: 1.6rem;
    }