#gf-calculator-wrapper {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
      max-width: 940px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
      overflow-x: hidden;
    }

    #gf-calculator-wrapper * {
      box-sizing: border-box;
    }

    .gf-calculator {
      background: #ffffff;
      border-radius: 18px;
      box-shadow: 0 8px 28px rgba(0,0,0,0.08);
      overflow: hidden;
      max-width: 100%;
      border: 1px solid #e7f0f1;
    }

    .gf-header {
      background: linear-gradient(135deg, #0099a8 0%, #007d8a 100%);
      padding: 28px;
      color: white;
      text-align: center;
    }

    .gf-header h1 {
      margin: 0;
      font-size: 30px;
      font-weight: 700;
      color: #ffffff;
      letter-spacing: -0.02em;
    }

    .gf-header p {
      margin: 8px 0 0;
      opacity: 0.95;
      font-size: 14px;
      color: #ffffff;
    }

    .gf-content {
      padding: 24px;
      background: #ffffff;
    }

    .gf-section {
      background: #f7fafa;
      border-radius: 14px;
      padding: 20px;
      margin-bottom: 24px;
      border: 1px solid #e0eded;
      overflow: hidden;
    }

    .gf-section-title {
      font-size: 15px;
      font-weight: 700;
      color: #1a3a3a;
      margin: 0 0 16px;
    }

    .gf-epo-section-header {
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-bottom: 16px;
    }

    .gf-epo-section-status {
      min-height: 18px;
      font-size: 12px;
      color: #6f8187;
      font-weight: 600;
      text-align: center;
    }

    .gf-input-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
      align-items: end;
    }

    .gf-approval-row {
      margin-bottom: 16px;
    }

    .gf-input-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: #5a6a72;
      margin-bottom: 8px;
    }

    .gf-input-group input[type="number"] {
      width: 100%;
      padding: 12px 14px;
      background: #ffffff;
      border: 2px solid #d0e0e3;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 600;
      color: #1a3a3a;
    }

    .gf-input-group input[type="number"]:focus {
      outline: none;
      border-color: #0099a8;
      box-shadow: 0 0 0 3px rgba(0, 153, 168, 0.15);
    }

    .gf-readonly-value {
      width: 100%;
      background: transparent;
      border: none;
      border-bottom: 2px solid #d0e0e3;
      border-radius: 0;
      padding: 0 0 10px 0;
      min-height: 0;
      font-size: 22px;
      font-weight: 700;
      color: #1a3a3a;
      line-height: 1.2;
      letter-spacing: -0.01em;
      word-break: break-word;
    }

    .gf-readonly-value.empty {
      color: #8a9a9e;
      font-weight: 500;
      font-style: italic;
      font-size: 15px;
      letter-spacing: 0;
    }

    .gf-checkbox-group {
      display: flex;
      gap: 20px;
      padding: 10px 0;
      flex-wrap: wrap;
      min-height: 48px;
      align-items: center;
    }

    .gf-checkbox-label {
      display: flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      font-size: 14px;
      font-weight: 600;
      color: #1a3a3a;
    }

    .gf-checkbox-label input {
      width: 18px;
      height: 18px;
      accent-color: #0099a8;
      cursor: pointer;
    }

    .gf-checkbox-label input[type="radio"] {
      border-radius: 50%;
    }

    .gf-two-col {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
      gap: 26px;
    }

    .gf-slider-group {
      margin-bottom: 20px;
    }

    .gf-bank-fee-dollar {
      margin-top: -8px;
      margin-bottom: 12px;
    }

    .gf-bank-fee-dollar input {
      width: 100%;
      padding: 10px 12px;
      background: #ffffff;
      border: 2px solid #d0e0e3;
      border-radius: 10px;
      font-size: 14px;
      font-weight: 600;
      color: #1a3a3a;
    }

    .gf-bank-fee-dollar input:focus {
      outline: none;
      border-color: #0099a8;
      box-shadow: 0 0 0 3px rgba(0, 153, 168, 0.15);
    }

    #gf-bank-fee {
      height: 10px;
    }

    #gf-bank-fee::-webkit-slider-thumb {
      width: 28px;
      height: 28px;
    }

    #gf-bank-fee::-moz-range-thumb {
      width: 28px;
      height: 28px;
    }

    .gf-bank-fee-stack {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .gf-bank-fee-inline-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .gf-bank-fee-tools,
    .gf-bank-fee-helper-card {
      background: #eef6f7;
      border: 1px solid #d6e8ea;
      border-radius: 12px;
      padding: 12px;
    }

    .gf-bank-fee-helper-card {
      background: linear-gradient(180deg, #ffffff 0%, #f2f8f8 100%);
    }

    .gf-bank-fee-tools-title {
      font-size: 12px;
      font-weight: 700;
      color: #1a3a3a;
      margin-bottom: 6px;
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

    .gf-bank-fee-helper-text {
      font-size: 12px;
      color: #6f8187;
      line-height: 1.4;
      margin: 0 0 10px;
    }

    .gf-bank-fee-chip-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .gf-bank-fee-chip {
      appearance: none;
      border: 1px solid #c5dfe2;
      background: #ffffff;
      border-radius: 999px;
      padding: 8px 12px;
      font-size: 12px;
      font-weight: 700;
      color: #1a3a3a;
      cursor: pointer;
      transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
    }

    .gf-bank-fee-chip:hover {
      border-color: #0099a8;
      box-shadow: 0 2px 8px rgba(0, 153, 168, 0.10);
      transform: translateY(-1px);
    }

    .gf-bank-fee-chip:active {
      transform: translateY(0);
    }

    .gf-bank-fee-percent-input {
      width: 100%;
      padding: 12px 14px;
      background: #ffffff;
      border: 2px solid #d0e0e3;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 600;
      color: #1a3a3a;
    }

    .gf-bank-fee-percent-input:focus {
      outline: none;
      border-color: #0099a8;
      box-shadow: 0 0 0 3px rgba(0, 153, 168, 0.15);
    }

    .gf-bank-fee-current {
      font-size: 24px;
      line-height: 1.1;
      font-weight: 700;
      color: #0099a8;
      margin-bottom: 10px;
    }

    .gf-bank-fee-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      padding: 8px 0;
      border-top: 1px solid #e3eeee;
      font-size: 13px;
    }

    .gf-bank-fee-meta:first-of-type {
      border-top: none;
      padding-top: 0;
    }

    .gf-bank-fee-meta span {
      color: #5a6a72;
    }

    .gf-bank-fee-meta strong {
      color: #1a3a3a;
      font-size: 13px;
    }

    .gf-slider-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      margin-bottom: 8px;
    }

    .gf-slider-label {
      font-size: 13px;
      font-weight: 600;
      color: #5a6a72;
    }

    .gf-slider-value {
      background: #0099a8;
      color: #ffffff;
      padding: 4px 12px;
      border-radius: 7px;
      font-size: 13px;
      font-weight: 700;
      white-space: nowrap;
      flex-shrink: 0;
    }

    .gf-slider-container {
      display: flex;
      align-items: center;
      gap: 12px;
      width: 100%;
      max-width: 100%;
    }

    .gf-slider-min, .gf-slider-max {
      font-size: 12px;
      color: #8a9a9e;
      min-width: 44px;
      flex-shrink: 0;
    }

    .gf-slider-max {
      text-align: right;
    }

    .gf-slider {
      flex: 1;
      min-width: 0;
      height: 8px;
      -webkit-appearance: none;
      appearance: none;
      background: #d0e0e3;
      border-radius: 4px;
      cursor: pointer;
    }

    .gf-slider::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 20px;
      height: 20px;
      background: #0099a8;
      border-radius: 50%;
      cursor: pointer;
      box-shadow: 0 2px 8px rgba(0, 153, 168, 0.35);
    }

    .gf-slider::-moz-range-thumb {
      width: 20px;
      height: 20px;
      background: #0099a8;
      border-radius: 50%;
      cursor: pointer;
      border: none;
      box-shadow: 0 2px 8px rgba(0, 153, 168, 0.35);
    }

    .gf-slider:disabled {
      cursor: not-allowed;
      opacity: 0.65;
    }

    .gf-results-grid {
      display: grid;
      gap: 12px;
    }

    .gf-main-results-grid {
      grid-template-columns: 1fr 1fr;
      grid-template-areas:
        "net payback"
        "payment commission-percent"
        "payment commission";
      align-content: start;
    }

    .gf-main-result-net { grid-area: net; }
    .gf-main-result-payback { grid-area: payback; }
    .gf-main-result-payment { grid-area: payment; }
    .gf-main-result-commission-percent { grid-area: commission-percent; }
    .gf-main-result-commission { grid-area: commission; }

    .gf-result-box {
      background: #e8f4f5;
      border: 1px solid #c5dfe2;
      border-radius: 10px;
      padding: 14px 12px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      min-height: 88px;
    }

    .gf-result-label {
      font-size: 11px;
      color: #5a6a72;
      margin-bottom: 6px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      line-height: 1.25;
    }

    .gf-result-value {
      font-size: 19px;
      font-weight: 700;
      color: #1a3a3a;
      line-height: 1.15;
    }

    .gf-result-value.highlight {
      color: #0099a8;
    }

    .gf-payment-frequency {
      font-size: 12px;
      color: #8a9a9e;
      font-weight: 600;
      margin-top: 4px;
      font-style: italic;
    }

    .gf-epo-card {
      background: #ffffff;
      border: 1px solid #d0e0e3;
      border-radius: 12px;
      padding: 16px;
      margin-bottom: 12px;
      overflow: hidden;
      transition: background 0.2s ease, border-color 0.2s ease;
    }

    .gf-epo-card.is-unavailable {
      background: #f4f6f7;
      border-color: #d7dde0;
    }

    .gf-epo-card.is-unavailable .gf-epo-title {
      color: #66757b;
    }

    .gf-epo-card.is-unavailable .gf-slider-header,
    .gf-epo-card.is-unavailable .gf-slider-container,
    .gf-epo-card.is-unavailable .gf-epo-results {
      opacity: 0.55;
    }

    .gf-epo-card.is-unavailable .gf-slider-value {
      background: #96a6ac;
    }

    .gf-epo-card.is-unavailable .gf-result-box {
      background: #f3f5f6;
      border-color: #d9e0e3;
    }

    .gf-epo-title {
      font-size: 14px;
      font-weight: 700;
      color: #0099a8;
      margin-bottom: 10px;
    }

    .gf-epo-status-note {
      display: none;
      margin: 12px auto 0;
      padding: 10px 14px;
      max-width: 420px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 700;
      text-align: center;
      color: #5f6b71;
      background: #eef2f4;
      border: 1px solid #d6dde1;
    }

    .gf-epo-card.is-unavailable .gf-epo-status-note {
      display: block;
    }

    .gf-epo-results {
      display: grid;
      grid-template-columns: 1fr 1fr;
      grid-template-areas:
        "payback payback"
        "commission percent";
      gap: 10px;
      margin-top: 14px;
    }

    .gf-epo-payback { grid-area: payback; }
    .gf-epo-commission { grid-area: commission; }
    .gf-epo-percent { grid-area: percent; }

    .gf-note {
      font-size: 13px;
      color: #8a9a9e;
      font-style: italic;
      margin-top: 16px;
    }

    .gf-warning {
      background: #e8f4f5;
      border: 1px solid #0099a8;
      border-radius: 12px;
      padding: 16px;
      margin-bottom: 24px;
    }

    .gf-warning ul {
      margin: 0;
      padding: 0 0 0 20px;
      font-size: 13px;
      color: #1a3a3a;
    }

    .gf-warning li {
      margin-bottom: 4px;
    }

    @media (max-width: 760px) {
      .gf-two-col {
        grid-template-columns: 1fr;
        gap: 18px;
      }

      .gf-input-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 600px) {

      .gf-bank-fee-inline-grid {
        grid-template-columns: 1fr;
      }

      .gf-bank-fee-chip {
        flex: 1 1 calc(50% - 8px);
        text-align: center;
      }

      .gf-bank-fee-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
      }
      #gf-calculator-wrapper {
        padding: 10px;
      }

      .gf-header {
        padding: 20px 16px;
      }

      .gf-header h1 {
        font-size: 23px;
      }

      .gf-header p {
        font-size: 13px;
      }

      .gf-content {
        padding: 16px;
      }

      .gf-section {
        padding: 16px;
        margin-bottom: 16px;
      }

      .gf-section-title {
        font-size: 14px;
        margin-bottom: 12px;
      }

      .gf-main-results-grid {
        grid-template-columns: 1fr 1fr;
        grid-template-areas:
          "net payback"
          "payment commission-percent"
          "payment commission";
        gap: 8px;
      }

      .gf-epo-results {
        grid-template-columns: 1fr 1fr;
      }

      .gf-result-box {
        min-height: 76px;
        padding: 10px 8px;
      }

      .gf-result-label {
        font-size: 10px;
      }

      .gf-result-value {
        font-size: 15px;
      }

      .gf-payment-frequency {
        font-size: 10px;
      }

      .gf-slider-min, .gf-slider-max {
        font-size: 11px;
        min-width: 40px;
      }

      .gf-slider-value {
        font-size: 12px;
        padding: 3px 10px;
      }

      .gf-readonly-value {
        font-size: 19px;
      }
    }

    @media (max-width: 480px) {
      #gf-calculator-wrapper {
        padding: 5px;
      }

      .gf-header {
        padding: 16px 12px;
      }

      .gf-header h1 {
        font-size: 20px;
      }

      .gf-content {
        padding: 12px;
      }

      .gf-section {
        padding: 12px;
        margin-bottom: 12px;
      }

      .gf-main-results-grid {
        grid-template-columns: 1fr;
        grid-template-areas:
          "net"
          "payback"
          "payment"
          "commission-percent"
          "commission";
      }

      .gf-epo-results {
        grid-template-columns: 1fr;
        grid-template-areas:
          "payback"
          "commission"
          "percent";
      }

      .gf-checkbox-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
      }

      .gf-slider-container {
        gap: 8px;
      }
    }