*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

  :root {
    --black: #1a1a1a;
    --white: #f8f7f4;
    --gray-light: #e8e6e1;
    --gray-mid: #999;
    --gray-dark: #555;
    --accent: #1a1a1a;
    --radius: 0px;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --transition: .3s cubic-bezier(.4,0,.2,1);
  }

  html { scroll-behavior: smooth }

  body {
    font-family: var(--font-body);
    background: var(--white);
    color: var(--black);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
  }

  /* HEADER */
  .header {
    padding: 24px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--gray-light);
  }
  .header img { height: 32px }
  .header a {
    font-family: var(--font-heading);
    font-size: 13px;
    color: var(--gray-mid);
    text-decoration: none;
    letter-spacing: .5px;
    transition: color var(--transition);
  }
  .header a:hover { color: var(--black) }

  /* CONTAINER */
  .container {
    max-width: 680px;
    margin: 0 auto;
    padding: 60px 24px 100px;
  }

  /* INTRO */
  .intro {
    margin-bottom: 56px;
    text-align: center;
  }
  .intro h1 {
    font-family: var(--font-heading);
    font-size: clamp(28px, 5vw, 42px);
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.15;
    margin-bottom: 16px;
    text-transform: uppercase;
  }
  .intro p {
    font-size: 15px;
    color: var(--gray-dark);
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.7;
  }

  /* PROGRESS */
  .progress-bar {
    display: flex;
    gap: 6px;
    margin-bottom: 48px;
  }
  .progress-bar .step-dot {
    flex: 1;
    height: 3px;
    background: var(--gray-light);
    border-radius: 2px;
    transition: background var(--transition);
  }
  .progress-bar .step-dot.active {
    background: var(--black);
  }

  /* STEP LABEL */
  .step-label {
    font-family: var(--font-heading);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gray-mid);
    margin-bottom: 8px;
  }
  .step-title {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 32px;
    letter-spacing: -.3px;
  }

  /* FORM SECTIONS */
  .form-step { display: none; animation: fadeUp .4s ease }
  .form-step.active { display: block }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px) }
    to { opacity: 1; transform: translateY(0) }
  }

  /* FORM ELEMENTS */
  .field { margin-bottom: 24px }
  .field label {
    display: block;
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 8px;
    letter-spacing: .2px;
  }
  .field label .req { color: var(--gray-mid); font-weight: 400 }
  .field label .opt { color: var(--gray-mid); font-weight: 300; font-size: 11px }

  input[type="text"],
  input[type="email"],
  input[type="tel"],
  input[type="url"],
  input[type="date"],
  input[type="time"],
  input[type="number"],
  textarea,
  select {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--black);
    background: transparent;
    border: 1.5px solid var(--gray-light);
    border-radius: var(--radius);
    outline: none;
    transition: border-color var(--transition);
  }
  input:focus, textarea:focus, select:focus {
    border-color: var(--black);
  }
  textarea { resize: vertical; min-height: 100px }
  select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' fill='none' stroke-width='1.5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center }

  /* FILE UPLOAD */
  .file-upload {
    border: 1.5px dashed var(--gray-light);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition);
    position: relative;
  }
  .file-upload:hover { border-color: var(--gray-mid) }
  .file-upload input { position: absolute; inset: 0; opacity: 0; cursor: pointer }
  .file-upload .upload-text {
    font-size: 13px;
    color: var(--gray-mid);
  }
  .file-upload .upload-text strong { color: var(--black) }
  .file-name { font-size: 12px; color: var(--gray-dark); margin-top: 6px }

  /* CHECKBOXES & RADIOS */
  .options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  @media (max-width: 500px) { .options-grid { grid-template-columns: 1fr } }

  .option-card {
    position: relative;
    border: 1.5px solid var(--gray-light);
    padding: 16px 18px;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .option-card:hover { border-color: var(--gray-mid) }
  .option-card.selected {
    border-color: var(--black);
    background: var(--black);
    color: var(--white);
  }
  .option-card input { display: none }
  .option-card .check-icon {
    width: 20px; height: 20px;
    border: 1.5px solid var(--gray-mid);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition);
  }
  .option-card.selected .check-icon {
    background: var(--white);
    border-color: var(--white);
  }
  .option-card.selected .check-icon::after {
    content: '';
    width: 8px; height: 8px;
    background: var(--black);
    border-radius: 50%;
  }
  .option-card .option-label {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: .1px;
  }

  /* RADIO LIST (vertical) */
  .radio-list { display: flex; flex-direction: column; gap: 10px }
  .radio-list .option-card { grid-template-columns: 1fr }

  /* BUTTONS */
  .btn-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    gap: 16px;
  }
  .btn {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .5px;
    padding: 16px 36px;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-transform: uppercase;
  }
  .btn-primary {
    background: var(--black);
    color: var(--white);
  }
  .btn-primary:hover { opacity: .85 }
  .btn-secondary {
    background: transparent;
    color: var(--gray-mid);
    padding: 16px 20px;
  }
  .btn-secondary:hover { color: var(--black) }
  .btn:disabled {
    opacity: .3;
    cursor: not-allowed;
  }

  /* SECTION DIVIDER */
  .section-note {
    font-size: 13px;
    color: var(--gray-mid);
    padding: 16px 0;
    border-top: 1px solid var(--gray-light);
    margin-top: 32px;
    margin-bottom: 24px;
    line-height: 1.6;
  }

  /* TWO COL */
  .two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  @media (max-width: 500px) { .two-col { grid-template-columns: 1fr } }

  /* SUCCESS */
  .success-screen {
    text-align: center;
    padding: 80px 24px;
    animation: fadeUp .5s ease;
  }
  .success-screen .check-circle {
    width: 64px; height: 64px;
    border: 2px solid var(--black);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 24px;
    font-size: 28px;
  }
  .success-screen h2 {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: -0.5px;
  }
  .success-screen p {
    font-size: 15px;
    color: var(--gray-dark);
    max-width: 400px;
    margin: 0 auto;
    line-height: 1.7;
  }
  .success-screen .btn { margin-top: 32px }

  /* FOOTER */
  .footer {
    text-align: center;
    padding: 32px 24px;
    font-size: 12px;
    color: var(--gray-mid);
    border-top: 1px solid var(--gray-light);
  }
  .footer a { color: var(--gray-dark); text-decoration: none }
  .footer a:hover { color: var(--black) }

  /* PRIVACY CHECKBOX */
  .privacy-check {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-top: 24px;
  }
  .privacy-check input[type="checkbox"] {
    width: 18px; height: 18px;
    margin-top: 2px;
    accent-color: var(--black);
    flex-shrink: 0;
  }
  .privacy-check label {
    font-size: 13px;
    color: var(--gray-dark);
    line-height: 1.5;
    cursor: pointer;
  }

  /* CONDITIONAL FIELDS ANIMATION */
  .conditional { display: none; animation: fadeUp .3s ease }
  .conditional.visible { display: block }

  /* ERROR STATES */
  .field.has-error input,
  .field.has-error textarea,
  .field.has-error select {
    border-color: #c0392b;
  }
  .field .error-msg {
    display: none;
    font-size: 12px;
    color: #c0392b;
    margin-top: 6px;
    font-family: var(--font-body);
  }
  .field.has-error .error-msg {
    display: block;
  }