*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --orange: #FF6B00; --orange-light: #FF9A3C; --pink: #EC4899;
      --purple: #7C3AED; --purple-light: #A78BFA; --green: #10B981;
      --dark: #0A0A0F; --dark-2: #12121A; --dark-3: #1A1A28;
      --text: #F8F8FF; --text-muted: #9CA3AF;
    }
    html, body { overflow-x: hidden; min-height: 100%; }
    body {
      font-family: 'Inter', sans-serif;
      background: var(--dark); color: var(--text);
      display: flex; flex-direction: column; align-items: center;
      padding: 0 0 80px;
    }

    .bg { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
    .bg-1 { position: absolute; width: 500px; height: 500px; border-radius: 50%; filter: blur(100px); background: rgba(124,58,237,.15); top: -100px; right: -80px; }
    .bg-2 { position: absolute; width: 400px; height: 400px; border-radius: 50%; filter: blur(100px); background: rgba(255,107,0,.1); bottom: 100px; left: -100px; }

    /* nav */
    nav {
      position: sticky; top: 0; z-index: 10; width: 100%;
      padding: 14px 20px;
      background: rgba(10,10,15,.9); backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(255,255,255,.06);
      display: flex; align-items: center; justify-content: space-between;
    }
    .nav-logo {
      font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1rem;
      background: linear-gradient(135deg, var(--orange), var(--pink));
      -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
      text-decoration: none;
    }
    .nav-back { color: var(--text-muted); font-size: .825rem; text-decoration: none; transition: color .2s; }
    .nav-back:hover { color: var(--text); }

    /* wrap */
    .wrap {
      position: relative; z-index: 1;
      width: 100%; max-width: 520px;
      padding: 48px 20px 0;
    }

    /* header */
    .page-header { text-align: center; margin-bottom: 36px; }
    .avatar-sm {
      width: 72px; height: 72px; border-radius: 50%;
      padding: 2px;
      background: linear-gradient(135deg, var(--orange), var(--pink), var(--purple-light));
      margin: 0 auto 16px;
    }
    .avatar-sm img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; object-position: top; display: block; }
    .page-header h1 {
      font-family: 'Space Grotesk', sans-serif; font-size: 1.35rem; font-weight: 800;
      margin-bottom: 8px;
    }
    .page-header p { color: var(--text-muted); font-size: .875rem; line-height: 1.65; max-width: 360px; margin: 0 auto; }

    /* progress */
    .progress-bar {
      height: 4px; background: rgba(255,255,255,.07); border-radius: 999px;
      margin-bottom: 32px; overflow: hidden;
    }
    .progress-fill {
      height: 100%; border-radius: 999px;
      background: linear-gradient(90deg, var(--orange), var(--pink));
      transition: width .4s ease;
    }

    /* form */
    form { display: flex; flex-direction: column; gap: 24px; }

    .q-block {
      background: var(--dark-2); border: 1px solid rgba(255,255,255,.07);
      border-radius: 16px; padding: 20px;
      transition: border-color .2s;
    }
    .q-block:focus-within { border-color: rgba(255,107,0,.3); }

    .q-label {
      display: flex; align-items: flex-start; gap: 10px;
      margin-bottom: 14px;
    }
    .q-num {
      flex-shrink: 0; width: 24px; height: 24px; border-radius: 6px;
      background: rgba(255,107,0,.15); color: var(--orange-light);
      font-size: .75rem; font-weight: 800;
      display: flex; align-items: center; justify-content: center;
    }
    .q-text { font-weight: 600; font-size: .9rem; line-height: 1.4; }

    select, input[type="text"], input[type="email"], input[type="tel"], textarea {
      width: 100%;
      background: var(--dark-3); border: 1px solid rgba(255,255,255,.1);
      border-radius: 10px; color: var(--text);
      font-family: 'Inter', sans-serif; font-size: .875rem;
      padding: 11px 14px; outline: none; transition: border-color .2s;
      appearance: none;
    }
    select:focus, input:focus, textarea:focus { border-color: rgba(255,107,0,.5); }
    textarea { resize: vertical; min-height: 100px; }
    select {
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239CA3AF' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
      background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px;
    }
    select option { background: #1A1A28; }

    .radio-group, .check-group { display: flex; flex-direction: column; gap: 8px; }
    .radio-item, .check-item {
      display: flex; align-items: center; gap: 10px;
      background: var(--dark-3); border: 1px solid rgba(255,255,255,.07);
      border-radius: 9px; padding: 11px 14px; cursor: pointer; transition: all .2s;
      user-select: none;
    }
    .radio-item:has(input:checked), .check-item:has(input:checked) {
      border-color: rgba(255,107,0,.4); background: rgba(255,107,0,.06);
    }
    .radio-item input, .check-item input { accent-color: var(--orange); width: 16px; height: 16px; flex-shrink: 0; }
    .radio-item span, .check-item span { font-size: .875rem; line-height: 1.4; }

    /* optional fields */
    .optional-fields {
      background: var(--dark-2); border: 1px solid rgba(255,255,255,.07);
      border-radius: 16px; padding: 20px;
      display: flex; flex-direction: column; gap: 14px;
    }
    .optional-fields h3 { font-size: .875rem; font-weight: 600; color: var(--text-muted); margin-bottom: 2px; }

    .field-row { display: flex; flex-direction: column; gap: 6px; }
    label.field-label { font-size: .8rem; font-weight: 600; color: var(--text-muted); }

    /* submit */
    .btn-submit {
      width: 100%; padding: 15px;
      background: linear-gradient(135deg, var(--orange), var(--pink));
      color: #fff; font-weight: 700; font-size: 1rem;
      border: none; border-radius: 12px; cursor: pointer;
      transition: all .25s; box-shadow: 0 4px 20px rgba(255,107,0,.3);
    }
    .btn-submit:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(255,107,0,.45); }
    .btn-submit:disabled { opacity: .6; cursor: not-allowed; transform: none; }

    /* success */
    .success-screen {
      display: none; text-align: center; padding: 48px 20px;
    }
    .success-screen .icon { font-size: 3rem; margin-bottom: 16px; }
    .success-screen h2 {
      font-family: 'Space Grotesk', sans-serif; font-size: 1.5rem; font-weight: 800;
      margin-bottom: 12px;
    }
    .success-screen p { color: var(--text-muted); font-size: .9rem; line-height: 1.7; margin-bottom: 24px; }
    .success-screen a {
      display: inline-flex; align-items: center; gap: 8px;
      background: var(--dark-2); border: 1px solid rgba(255,255,255,.1);
      color: var(--text); text-decoration: none; font-size: .875rem; font-weight: 600;
      padding: 12px 24px; border-radius: 999px; transition: all .2s;
    }
    .success-screen a:hover { border-color: rgba(255,107,0,.3); }

    @media (max-width: 400px) {
      .wrap { padding: 32px 14px 0; }
      .q-block { padding: 16px; }
    }