body {
      min-height: 100vh;
      background: #0d1117;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      color: #e6edf3;
      line-height: 1.6;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      background:
        radial-gradient(ellipse 80% 60% at 20% 10%, rgba(0,150,255,.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 90%, rgba(0,230,150,.09) 0%, transparent 55%);
      pointer-events: none;
      z-index: 0;
    }

    /* ── Nav ── */
    .top-nav {
      position: sticky;
      top: 0;
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 32px;
      background: rgba(13,17,23,.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid #21262d;
    }
    .nav-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .nav-logo {
      width: 36px; height: 36px;
      background: linear-gradient(135deg, #0096ff 0%, #00e676 100%);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
    }
    .nav-title {
      font-size: 18px;
      font-weight: 700;
      background: linear-gradient(90deg, #4fc3f7, #00e676);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .nav-links {
      display: flex;
      gap: 24px;
    }
    .nav-links a {
      color: #8b949e;
      text-decoration: none;
      font-size: 14px;
      font-weight: 500;
      transition: color .2s;
    }
    .nav-links a:hover { color: #e6edf3; }

    /* ── Layout ── */
    .content-wrap {
      position: relative;
      max-width: 1140px;
      margin: 0 auto;
      padding: 40px 24px 80px;
    }

    /* ── Progress Indicator ── */
    .progress-bar {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0;
      margin-bottom: 36px;
    }
    .progress-step {
      display: flex;
      align-items: center;
      gap: 10px;
      cursor: default;
    }
    .progress-circle {
      width: 36px; height: 36px;
      border-radius: 50%;
      background: #21262d;
      border: 2px solid #30363d;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
      color: #8b949e;
      transition: all .3s ease;
      flex-shrink: 0;
    }
    .progress-circle.active {
      background: linear-gradient(135deg, #0096ff, #00e676);
      border-color: transparent;
      color: #0d1117;
    }
    .progress-circle.completed {
      background: #00e676;
      border-color: transparent;
      color: #0d1117;
    }
    .progress-label {
      font-size: 13px;
      font-weight: 600;
      color: #8b949e;
      transition: color .3s;
      white-space: nowrap;
    }
    .progress-label.active { color: #e6edf3; }
    .progress-label.completed { color: #00e676; }
    .progress-connector {
      width: 60px;
      height: 2px;
      background: #30363d;
      margin: 0 16px;
      transition: background .3s;
      flex-shrink: 0;
    }
    .progress-connector.completed {
      background: #00e676;
    }

    /* ── Checkout Grid ── */
    .checkout-grid {
      display: grid;
      grid-template-columns: 1fr 380px;
      gap: 32px;
      align-items: start;
    }

    /* ── Product Switcher ── */
    .product-switcher {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 28px;
    }
    .product-option {
      position: relative;
      background: #0d1117;
      border: 2px solid #30363d;
      border-radius: 12px;
      padding: 16px 18px;
      cursor: pointer;
      transition: border-color .2s, box-shadow .2s;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .product-option:hover {
      border-color: #484f58;
    }
    .product-option.selected {
      border-color: #00e676;
      box-shadow: 0 0 0 3px rgba(0,230,118,.15);
    }
    .product-option input[type="radio"] {
      position: absolute;
      opacity: 0;
      pointer-events: none;
    }
    .product-radio-dot {
      width: 20px; height: 20px;
      border-radius: 50%;
      border: 2px solid #30363d;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      transition: border-color .2s;
    }
    .product-option.selected .product-radio-dot {
      border-color: #00e676;
    }
    .product-radio-dot::after {
      content: "";
      width: 10px; height: 10px;
      border-radius: 50%;
      background: #00e676;
      transform: scale(0);
      transition: transform .2s;
    }
    .product-option.selected .product-radio-dot::after {
      transform: scale(1);
    }
    .product-option-info {
      flex: 1;
      min-width: 0;
    }
    .product-option-name {
      font-size: 15px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .product-option-badge {
      background: #00e676;
      color: #0d1117;
      font-size: 10px;
      font-weight: 700;
      padding: 2px 7px;
      border-radius: 4px;
      text-transform: uppercase;
    }
    .product-option-tagline {
      font-size: 12px;
      color: #8b949e;
      margin-top: 2px;
    }
    .product-option-price {
      font-size: 16px;
      font-weight: 800;
      color: #00e676;
      white-space: nowrap;
    }
    .product-option-price .period {
      font-size: 12px;
      font-weight: 500;
      color: #8b949e;
    }

    /* ── Step Panels ── */
    .step-panel {
      display: none;
      animation: fadeSlideIn .35s ease;
    }
    .step-panel.active {
      display: block;
    }
    @keyframes fadeSlideIn {
      from { opacity: 0; transform: translateY(16px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .step-card {
      background: #161b22;
      border: 1px solid #30363d;
      border-radius: 12px;
      padding: 28px 32px;
    }
    .step-card-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .step-card-subtitle {
      font-size: 14px;
      color: #8b949e;
      margin-bottom: 24px;
    }

    /* ── Form Fields ── */
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-bottom: 18px;
    }
    .form-group.full { grid-column: 1 / -1; }
    .form-group label {
      font-size: 13px;
      font-weight: 600;
      color: #c9d1d9;
    }
    .form-group label .required {
      color: #f85149;
      margin-left: 2px;
    }
    .form-group input,
    .form-group select {
      background: #0d1117;
      border: 1px solid #30363d;
      border-radius: 8px;
      padding: 12px 14px;
      font-size: 15px;
      color: #e6edf3;
      font-family: inherit;
      transition: border-color .2s, box-shadow .2s;
      width: 100%;
    }
    .form-group input::placeholder {
      color: #484f58;
    }
    .form-group input:focus,
    .form-group select:focus {
      outline: none;
      border-color: #00e676;
      box-shadow: 0 0 0 3px rgba(0,230,118,.15);
    }
    .form-group input.error,
    .form-group select.error {
      border-color: #f85149;
      box-shadow: 0 0 0 3px rgba(248,81,73,.15);
    }
    .form-group select {
      appearance: none;
      -webkit-appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%238b949e' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 14px center;
      padding-right: 36px;
      cursor: pointer;
    }
    .field-error {
      font-size: 12px;
      color: #f85149;
      display: none;
      margin-top: 2px;
    }
    .field-error.visible {
      display: block;
    }
    .country-display {
      background: #0d1117;
      border: 1px solid #30363d;
      border-radius: 8px;
      padding: 12px 14px;
      font-size: 15px;
      color: #8b949e;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* ── Buttons ── */
    .step-buttons {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 24px;
      gap: 12px;
    }
    .btn-next {
      padding: 12px 28px;
      background: linear-gradient(135deg, #00e676 0%, #00c853 100%);
      color: #0d1117;
      font-size: 15px;
      font-weight: 700;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      transition: transform .15s, box-shadow .15s, opacity .2s;
      display: flex;
      align-items: center;
      gap: 6px;
      margin-left: auto;
    }
    .btn-next:hover:not(:disabled) {
      transform: translateY(-1px);
      box-shadow: 0 4px 16px rgba(0,230,118,.35);
    }
    .btn-next:disabled {
      opacity: .45;
      cursor: not-allowed;
      transform: none;
      box-shadow: none;
    }
    .btn-back {
      padding: 12px 24px;
      background: transparent;
      color: #8b949e;
      font-size: 14px;
      font-weight: 600;
      border: 1px solid #30363d;
      border-radius: 8px;
      cursor: pointer;
      transition: color .2s, border-color .2s;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .btn-back:hover {
      color: #e6edf3;
      border-color: #484f58;
    }
    .btn-submit {
      width: 100%;
      padding: 16px;
      background: linear-gradient(135deg, #00e676 0%, #00c853 100%);
      color: #0d1117;
      font-size: 16px;
      font-weight: 700;
      border: none;
      border-radius: 10px;
      cursor: pointer;
      transition: transform .15s, box-shadow .15s;
      margin-top: 24px;
    }
    .btn-submit:hover {
      transform: translateY(-1px);
      box-shadow: 0 4px 20px rgba(0,230,118,.35);
    }
    .btn-submit:active { transform: translateY(0); }
    .btn-submit:disabled {
      opacity: .6;
      cursor: not-allowed;
      transform: none;
    }

    /* ── Stripe Card Element ── */
    .payment-section {
      background: #0d1117;
      border: 1px solid #30363d;
      border-radius: 10px;
      padding: 20px 22px;
      margin-bottom: 16px;
    }
    .payment-section-title {
      font-size: 13px;
      font-weight: 600;
      color: #8b949e;
      text-transform: uppercase;
      letter-spacing: .5px;
      margin-bottom: 16px;
    }
    #card-element {
      background: #161b22;
      border: 2px solid #30363d;
      border-radius: 8px;
      padding: 16px 18px;
      min-height: 48px;
      transition: border-color .2s;
    }
    #card-element.StripeElement--focus {
      border-color: #00e676;
    }
    #card-element.StripeElement--invalid {
      border-color: #f85149;
    }
    #card-errors {
      color: #f85149;
      font-size: 13px;
      margin-top: 8px;
      min-height: 20px;
    }
    .test-mode-banner {
      display: flex;
      align-items: center;
      gap: 8px;
      background: rgba(251,146,60,.1);
      border: 1px solid rgba(251,146,60,.3);
      border-radius: 8px;
      padding: 10px 14px;
      margin-bottom: 16px;
      font-size: 13px;
      color: #fb923c;
    }

    /* ── Review Step ── */
    .review-section {
      background: #0d1117;
      border: 1px solid #30363d;
      border-radius: 10px;
      padding: 20px 22px;
      margin-bottom: 16px;
    }
    .review-section-title {
      font-size: 13px;
      font-weight: 700;
      color: #4fc3f7;
      text-transform: uppercase;
      letter-spacing: .5px;
      margin-bottom: 12px;
    }
    .review-row {
      display: flex;
      justify-content: space-between;
      padding: 5px 0;
      font-size: 14px;
    }
    .review-row .rlabel {
      color: #8b949e;
    }
    .review-row .rvalue {
      color: #e6edf3;
      font-weight: 500;
      text-align: right;
      max-width: 60%;
    }

    /* ── Order Summary Sidebar ── */
    .summary-card {
      background: #161b22;
      border: 1px solid #30363d;
      border-radius: 12px;
      padding: 28px;
      position: sticky;
      top: 88px;
    }
    .summary-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
      color: #e6edf3;
    }
    .summary-product {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 20px;
    }
    .summary-product-img {
      width: 64px; height: 64px;
      border-radius: 10px;
      overflow: hidden;
      flex-shrink: 0;
      background: linear-gradient(135deg, #0096ff 0%, #00e676 100%);
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .summary-product-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .summary-product-img .placeholder-icon {
      font-size: 28px;
    }
    .summary-product-info {
      flex: 1;
      min-width: 0;
    }
    .summary-product-name {
      font-size: 15px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .summary-product-badge {
      background: #00e676;
      color: #0d1117;
      font-size: 10px;
      font-weight: 700;
      padding: 2px 6px;
      border-radius: 4px;
    }
    .summary-product-tagline {
      font-size: 12px;
      color: #8b949e;
      margin-top: 2px;
    }
    .summary-divider {
      height: 1px;
      background: #30363d;
      margin: 12px 0;
    }
    .summary-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 8px 0;
      font-size: 14px;
    }
    .summary-row .label { color: #8b949e; }
    .summary-row .value { font-weight: 600; color: #e6edf3; }
    .summary-row .value.free { color: #00e676; }
    .summary-total {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 14px 0 0;
      font-size: 18px;
      font-weight: 800;
    }
    .summary-total .value { color: #00e676; }
    .summary-note {
      font-size: 12px;
      color: #8b949e;
      text-align: center;
      margin-top: 16px;
      padding: 10px 12px;
      background: rgba(0,230,118,.06);
      border-radius: 8px;
      border: 1px solid rgba(0,230,118,.12);
    }
    .trust-badges {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-top: 18px;
      flex-wrap: wrap;
    }
    .trust-badge {
      font-size: 11px;
      color: #8b949e;
      display: flex;
      align-items: center;
      gap: 4px;
      white-space: nowrap;
    }

    /* ── Footer ── */
    .footer {
      text-align: center;
      padding: 32px 24px;
      color: #484f58;
      font-size: 13px;
      border-top: 1px solid #21262d;
    }

    /* ── Who-For Selector (Step 0) ── */
    .who-for-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin: 32px 0;
    }
    .who-for-card {
      background: #161b22;
      border: 2px solid #30363d;
      border-radius: 14px;
      padding: 32px 24px;
      cursor: pointer;
      transition: border-color .25s, box-shadow .25s, transform .15s;
      text-align: center;
    }
    .who-for-card:hover {
      border-color: #484f58;
      transform: translateY(-2px);
    }
    .who-for-card.selected {
      border-color: #00e676;
      box-shadow: 0 0 0 3px rgba(0,230,118,.2), 0 8px 24px rgba(0,230,118,.1);
    }
    .who-for-icon {
      font-size: 42px;
      margin-bottom: 14px;
    }
    .who-for-title {
      font-size: 18px;
      font-weight: 700;
      color: #e6edf3;
      margin-bottom: 10px;
    }
    .who-for-desc {
      font-size: 13px;
      color: #8b949e;
      line-height: 1.6;
    }

    /* ── Responsive ── */
    @media (max-width: 900px) {
      .top-nav { padding: 12px 16px; }
      .checkout-grid {
        grid-template-columns: 1fr;
      }
      .summary-card { position: static; order: -1; }
      .content-wrap { padding: 28px 16px 60px; }
      .form-row { grid-template-columns: 1fr; }
      .step-card { padding: 22px 18px; }
      .progress-label { display: none; }
      .progress-connector { width: 32px; margin: 0 8px; }
      .product-switcher { grid-template-columns: 1fr; }
      .who-for-grid { grid-template-columns: 1fr; }
    }

/* ── Extracted from checkout.html ── */

.checkout-s1 {
  max-width: 680px;
  margin: 0 auto;
}

.checkout-s2 {
  justify-content: center;
}

.checkout-s3 {
  background: rgba(255,152,0,0.1);
  border: 1px solid rgba(255,152,0,0.3);
  color: #ff9800;
  padding: 12px 16px;
  border-radius: 9px;
  margin-bottom: 16px;
  font-size: 13.5px;
}

.checkout-s4 {
  background: rgba(248,81,73,0.1);
  border: 1px solid rgba(248,81,73,0.35);
  color: #f85149;
  padding: 12px 16px;
  border-radius: 9px;
  margin-bottom: 16px;
  font-size: 13.5px;
}

.checkout-s5 {
  margin-top: 20px;
  padding: 20px 16px;
  background: rgba(0,230,118,.06);
  border: 1px solid rgba(0,230,118,.18);
  border-radius: 10px;
}

.checkout-s6 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.checkout-s7 {
  white-space: pre-line;
}

.checkout-s8 {
  height: 1px;
  background: #30363d;
  margin: 8px 0;
}

.checkout-s9 {
  font-weight: 700;
  font-size: 16px;
}

.checkout-s10 {
  color: #00e676;
  font-weight: 800;
}

.checkout-s11 {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.checkout-s12 {
  width: 100%;
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 8px;
  color: #e6edf3;
  padding: 10px 14px;
  font-size: 14px;
  text-transform: uppercase;
}

.checkout-s13 {
  background: #21262d;
  border: 1px solid #30363d;
  color: #e6edf3;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.checkout-s14 {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #e6edf3;
  margin-bottom: 8px;
}

.checkout-s15 {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 13px;
  color: #8b949e;
  line-height: 1.5;
}

.checkout-s16 {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  accent-color: #4fc3f7;
  cursor: pointer;
  flex-shrink: 0;
}

.checkout-s17 {
  margin-top: 16px;
  padding: 14px 16px;
  background: rgba(255,167,38,.06);
  border: 1px solid rgba(255,167,38,.2);
  border-radius: 10px;
}

.checkout-s18 {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.checkout-s19 {
  font-size: 16px;
  flex-shrink: 0;
}

.checkout-s20 {
  font-size: 12px;
  color: #ffa726;
  line-height: 1.6;
  margin: 0;
}

.checkout-s21 {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 13px;
  color: #e6edf3;
  line-height: 1.5;
}

.checkout-s22 {
  color: #4fc3f7;
  text-decoration: underline;
}

.checkout-s23 {
  margin-left: 26px;
}