body { font-family: 'Inter', sans-serif; background: #f0f2f7; }

  .lobby-wrap {
    min-height: calc(100vh - 120px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
  }

  .lobby-card {
    background: #fff;
    border-radius: 24px;
    box-shadow: 0 4px 40px rgba(15,23,42,.08);
    border: 1px solid #e8ecf2;
    padding: 48px 40px;
    max-width: 520px;
    width: 100%;
    animation: cardUp .5s ease-out both;
  }

  @keyframes cardUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .lobby-logo {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #0f172a, #1e40af);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
  }

  .lobby-title {
    font-size: 1.7rem;
    font-weight: 800;
    color: #0f172a;
    text-align: center;
    margin-bottom: 6px;
    letter-spacing: -.02em;
  }

  .lobby-sub {
    text-align: center;
    color: #64748b;
    font-size: .9rem;
    margin-bottom: 28px;
    line-height: 1.6;
  }

  /* Privacy banner */
  .privacy-banner {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border: 1px solid #bbf7d0;
    border-radius: 12px;
    padding: 12px 16px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 28px;
    font-size: .82rem;
    color: #15803d;
  }
  .privacy-banner i { margin-top: 1px; flex-shrink: 0; }

  /* Action cards */
  .action-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }

  .action-card {
    border: 2px solid #e8ecf2;
    border-radius: 16px;
    padding: 20px 16px;
    text-align: center;
    cursor: pointer;
    transition: all .25s;
    background: #fafbfd;
  }
  .action-card:hover, .action-card.active {
    border-color: #3b82f6;
    background: #eff6ff;
    box-shadow: 0 4px 16px rgba(59,130,246,.12);
  }
  .action-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    font-size: 1.1rem;
    color: #fff;
  }
  .action-card h4 { font-size: .9rem; font-weight: 700; color: #0f172a; margin: 0; }
  .action-card p { font-size: .75rem; color: #64748b; margin: 4px 0 0; }

  /* Forms */
  .form-panel { display: none; }
  .form-panel.active { display: block; }

  .field-label {
    display: block;
    font-size: .8rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 6px;
    letter-spacing: .02em;
    text-transform: uppercase;
  }

  .field-input {
    width: 100%;
    border: 1.5px solid #e2e8f0;
    border-radius: 10px;
    padding: 11px 14px;
    font-size: .95rem;
    font-family: 'Inter', sans-serif;
    color: #0f172a;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
    background: #fff;
  }
  .field-input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59,130,246,.15);
  }

  .code-input {
    text-transform: uppercase;
    letter-spacing: .2em;
    font-weight: 700;
    font-size: 1.3rem;
    text-align: center;
  }

  .btn-primary-full {
    width: 100%;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    border: none;
    border-radius: 12px;
    padding: 13px;
    font-size: .95rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: opacity .2s, transform .2s;
    margin-top: 14px;
  }
  .btn-primary-full:hover { opacity: .92; transform: translateY(-1px); }
  .btn-primary-full:active { transform: translateY(0); }

  .error-msg {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 10px;
    padding: 10px 14px;
    color: #dc2626;
    font-size: .85rem;
    margin-bottom: 16px;
  }

  /* Features strip */
  .features-strip {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid #f1f5f9;
  }
  .feature-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: .75rem;
    color: #64748b;
    font-weight: 500;
  }
  .feature-pill i { color: #3b82f6; font-size: .8rem; }

  @media (max-width: 500px) {
    .lobby-card { padding: 32px 24px; }
    .action-cards { grid-template-columns: 1fr; }
  }

  /* Explain Section */
  .explain-section {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid #e2e8f0;
    width: 100%;
  }
  .explain-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: #0f172a;
    text-align: center;
    margin-bottom: 0.5rem;
    letter-spacing: -.02em;
  }
  .explain-subtitle {
    font-size: 0.95rem;
    color: #64748b;
    text-align: center;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
  }
  .explain-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  @media (max-width: 768px) {
    .explain-grid {
      grid-template-columns: 1fr;
    }
  }
  .explain-box {
    background: #fff;
    border-radius: 16px;
    border: 1px solid #e8ecf2;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(15,23,42,.03);
    transition: transform .2s, box-shadow .2s;
  }
  .explain-box:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(15,23,42,.06);
  }
  .explain-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: #eff6ff;
    color: #3b82f6;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    margin-bottom: 16px;
  }
  .explain-box h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 8px;
  }
  .explain-box p {
    font-size: 0.82rem;
    color: #64748b;
    line-height: 1.6;
    margin: 0;
  }