@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
  :root {
    --sol-orange: #F58220;
    --sol-orange-dark: #D96E0E;
    --sol-orange-light: #FFF3E6;
    --sol-orange-glow: #FFAB40;
    --white: #FFFFFF;
    --gray-50: #FAFAFA;
    --gray-100: #F5F5F5;
    --gray-200: #EEEEEE;
    --gray-300: #E0E0E0;
    --gray-400: #BDBDBD;
    --gray-500: #9E9E9E;
    --gray-700: #616161;
    --gray-800: #424242;
    --gray-900: #212121;
    --red: #E53935;
    --green: #43A047;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--gray-100);
    color: var(--gray-900);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
  }
  .header {
    background: var(--white);
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border-bottom: 3px solid var(--sol-orange);
  }
  .header img { width: 56px; height: auto; flex-shrink: 0; }
  .header-text { flex: 1; }
  .header h1 { color: var(--gray-900); font-size: 13px; font-weight: 700; letter-spacing: 0.3px; text-transform: uppercase; line-height: 1.3; }
  .header p { color: var(--sol-orange); font-size: 10px; font-weight: 600; margin-top: 1px; }
  .container { max-width: 540px; margin: 0 auto; padding: 16px 12px 40px; }
  .trust-banner {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
    margin-bottom: 12px;
    border-left: 4px solid var(--sol-orange);
  }
  .trust-banner h2 { font-size: 14px; font-weight: 700; color: var(--gray-900); margin-bottom: 6px; }
  .trust-banner p { font-size: 12px; color: var(--gray-700); line-height: 1.6; }
  .trust-badges { display: flex; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
  .badge {
    display: flex; align-items: center; gap: 6px;
    font-size: 10px; font-weight: 700; color: var(--sol-orange-dark);
    text-transform: uppercase; letter-spacing: 0.5px;
    background: var(--sol-orange-light); padding: 5px 10px; border-radius: 20px;
  }
  .progress-bar {
    background: var(--white); border-radius: 20px;
    padding: 10px 16px; margin-bottom: 12px;
    box-shadow: var(--shadow); display: flex; align-items: center; gap: 10px;
  }
  .progress-track { flex: 1; height: 6px; background: var(--gray-200); border-radius: 3px; overflow: hidden; }
  .progress-fill { height: 100%; background: linear-gradient(90deg, var(--sol-orange), var(--sol-orange-glow)); border-radius: 3px; width: 33%; transition: width 0.4s ease; }
  .progress-text { font-size: 11px; font-weight: 600; color: var(--sol-orange); white-space: nowrap; }
  .section { background: var(--white); border-radius: var(--radius); margin-bottom: 12px; box-shadow: var(--shadow); overflow: hidden; }
  .section-title {
    font-size: 12px; font-weight: 700; color: var(--sol-orange);
    text-transform: uppercase; letter-spacing: 0.8px;
    padding: 14px 16px 0; display: flex; align-items: center; gap: 8px;
  }
  .section-title .icon { font-size: 16px; }
  .field-group { padding: 10px 16px 14px; }
  .field-group label { display: block; font-size: 12px; font-weight: 500; color: var(--gray-700); margin-bottom: 4px; }
  .field-group label .req { color: var(--red); }
  .field-group input, .field-group select, .field-group textarea {
    width: 100%; padding: 10px 12px;
    border: 1.5px solid var(--gray-300); border-radius: 8px;
    font-size: 14px; font-family: inherit; color: var(--gray-900);
    background: var(--gray-50); transition: border 0.2s, box-shadow 0.2s;
    outline: none; box-sizing: border-box; -webkit-appearance: none; appearance: none;
  }
  .field-group input:focus, .field-group select:focus, .field-group textarea:focus {
    border-color: var(--sol-orange); box-shadow: 0 0 0 3px rgba(245,130,32,0.15); background: var(--white);
  }
  .field-group input::placeholder, .field-group textarea::placeholder { color: var(--gray-400); }
  .field-group textarea { resize: vertical; min-height: 100px; line-height: 1.6; }
  .field-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239E9E9E' stroke-width='2' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px;
  }
  .option-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 8px 16px 14px; }
  @media (max-width: 400px) { .option-grid { grid-template-columns: 1fr; } }
  .option-card { position: relative; }
  .option-card input[type="radio"] { position: absolute; opacity: 0; pointer-events: none; }
  .option-card label {
    display: flex; align-items: center; gap: 8px;
    padding: 10px 12px; background: var(--gray-50);
    border: 1.5px solid var(--gray-300); border-radius: 8px;
    cursor: pointer; font-size: 13px; font-weight: 500;
    color: var(--gray-700); transition: all 0.2s; margin-bottom: 0;
  }
  .option-card label:hover { border-color: var(--sol-orange); }
  .option-card input:checked + label { border-color: var(--sol-orange); background: var(--sol-orange-light); color: var(--gray-900); font-weight: 600; }
  .option-dot {
    width: 16px; height: 16px; border-radius: 50%;
    border: 2px solid var(--gray-300); flex-shrink: 0;
    transition: all 0.2s; position: relative;
  }
  .option-card input:checked + label .option-dot { border-color: var(--sol-orange); background: var(--sol-orange); }
  .option-dot::after {
    content: ''; width: 6px; height: 6px; border-radius: 50%;
    background: var(--white); position: absolute; top: 50%; left: 50%;
    transform: translate(-50%,-50%); opacity: 0; transition: opacity 0.2s;
  }
  .option-card input:checked + label .option-dot::after { opacity: 1; }
  .consent-card { padding: 10px 16px 14px; }
  .consent-card > label {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 12px; background: var(--gray-50);
    border: 1.5px solid var(--gray-300); border-radius: 8px;
    cursor: pointer; font-size: 12px; color: var(--gray-700);
    line-height: 1.5; transition: all 0.2s;
  }
  .consent-card > label.checked { border-color: var(--sol-orange); background: var(--sol-orange-light); }
  .consent-check {
    width: 18px; height: 18px; border-radius: 4px;
    border: 2px solid var(--gray-300); flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s; margin-top: 1px;
  }
  .consent-card > label.checked .consent-check { border-color: var(--sol-orange); background: var(--sol-orange); }
  .consent-check::after { content: '✓'; font-size: 11px; font-weight: 700; color: white; opacity: 0; transition: opacity 0.2s; }
  .consent-card > label.checked .consent-check::after { opacity: 1; }
  .btn-row { padding: 8px 16px 16px; display: flex; gap: 10px; }
  .btn {
    padding: 12px 20px; border: none; border-radius: 8px;
    font-family: inherit; font-size: 14px; font-weight: 600;
    cursor: pointer; transition: all 0.2s;
    display: flex; align-items: center; justify-content: center; gap: 8px;
  }
  .btn-back { background: var(--gray-200); color: var(--gray-700); flex: 0 0 auto; }
  .btn-back:hover { background: var(--gray-300); }
  .btn-next { background: var(--sol-orange); color: var(--white); flex: 1; }
  .btn-next:hover { background: var(--sol-orange-dark); box-shadow: 0 2px 8px rgba(245,130,32,0.35); }
  .btn-next:active { transform: scale(0.98); }
  .btn-submit { background: var(--sol-orange); color: var(--white); width: 100%; padding: 14px; font-size: 15px; border: none; border-radius: 8px; font-family: inherit; font-weight: 600; cursor: pointer; transition: all 0.2s; }
  .btn-submit:hover { background: var(--sol-orange-dark); box-shadow: 0 2px 12px rgba(245,130,32,0.35); }
  .btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }
  .form-step { display: none; }
  .form-step.active { display: block; animation: fadeIn 0.3s ease; }
  .success-screen { display: none; text-align: center; padding: 32px 16px; }
  .success-screen.show { display: block; animation: fadeIn 0.4s ease; }
  .success-icon { width: 64px; height: 64px; border-radius: 50%; background: var(--green); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; font-size: 28px; color: white; box-shadow: 0 4px 16px rgba(67,160,71,0.3); }
  .success-screen h2 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
  .success-screen p { font-size: 13px; color: var(--gray-700); line-height: 1.6; max-width: 400px; margin: 0 auto; }
  .error-msg { font-size: 11px; color: var(--red); margin-top: 4px; display: none; padding: 0 16px 8px; }
  .error-msg.show { display: block; }
  .field-group.error input, .field-group.error select, .field-group.error textarea { border-color: var(--red); }
  .field-group.error .field-error { display: block; padding: 0; }
  .field-error { font-size: 11px; color: var(--red); margin-top: 4px; display: none; }
  @keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
  .footer-dev {
    text-align: center; padding: 16px; opacity: 0.45;
    font-size: 10px; font-weight: 500; color: var(--gray-700); letter-spacing: 0.3px;
  }
  .footer-dev img { width: 22px; height: auto; vertical-align: middle; margin-right: 4px; border-radius: 3px; }