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

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      background: #f0f4ff;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 32px 16px;
    }

    /* Logo */
    .logo { margin-bottom: 36px; }
    .logo img { height: 34px; display: block; }

    /* Nagłówek */
    .heading { text-align: center; margin-bottom: 32px; }
    .heading__title {
      font-size: 26px; font-weight: 900; color: #111827;
      letter-spacing: -.4px; margin-bottom: 8px;
    }
    .heading__sub { font-size: 15px; color: #6b7280; line-height: 1.5; }

    /* Siatka kart */
    .cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      width: 100%;
      max-width: 680px;
    }
    @media (max-width: 560px) {
      .cards { grid-template-columns: 1fr; max-width: 380px; }
    }

    .card {
      display: flex;
      flex-direction: column;
      align-items: center;
      background: #fff;
      border: 2px solid #e5e7eb;
      border-radius: 18px;
      padding: 30px 20px 26px;
      text-align: center;
      text-decoration: none;
      color: inherit;
      box-shadow: 0 2px 8px rgba(0,0,0,.05);
      transition: border-color .18s, box-shadow .18s, transform .18s;
      position: relative;
      overflow: hidden;
    }
    .card::before {
      content: '';
      position: absolute;
      inset: 0;
      opacity: 0;
      transition: opacity .18s;
    }
    .card--user::before   { background: linear-gradient(135deg, rgba(59,130,246,.04), transparent 60%); }
    .card--agency::before { background: linear-gradient(135deg, rgba(16,185,129,.04), transparent 60%); }
    .card--dev::before    { background: linear-gradient(135deg, rgba(245,158,11,.04), transparent 60%); }

    .card:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 32px rgba(0,0,0,.10);
    }
    .card--user:hover   { border-color: #3b82f6; }
    .card--agency:hover { border-color: #10b981; }
    .card--dev:hover    { border-color: #f59e0b; }
    .card:hover::before { opacity: 1; }

    /* Ikona */
    .card__icon-wrap {
      width: 60px; height: 60px;
      border-radius: 16px;
      display: flex; align-items: center; justify-content: center;
      margin-bottom: 16px;
      transition: transform .18s;
    }
    .card:hover .card__icon-wrap { transform: scale(1.08); }
    .card--user   .card__icon-wrap { background: #eff6ff; }
    .card--agency .card__icon-wrap { background: #ecfdf5; }
    .card--dev    .card__icon-wrap { background: #fffbeb; }

    .card__icon-wrap svg { width: 30px; height: 30px; }
    .card--user   .card__icon-wrap svg { color: #3b82f6; }
    .card--agency .card__icon-wrap svg { color: #10b981; }
    .card--dev    .card__icon-wrap svg { color: #f59e0b; }

    .card__title {
      font-size: 15px; font-weight: 900;
      color: #111827; margin-bottom: 8px;
    }
    .card__desc { font-size: 13px; color: #6b7280; line-height: 1.55; }

    /* Strzałka */
    .card__arrow {
      margin-top: 18px;
      width: 32px; height: 32px;
      border-radius: 999px;
      display: flex; align-items: center; justify-content: center;
      opacity: 0;
      transform: translateX(-4px);
      transition: opacity .18s, transform .18s;
    }
    .card--user   .card__arrow { background: #eff6ff; color: #3b82f6; }
    .card--agency .card__arrow { background: #ecfdf5; color: #10b981; }
    .card--dev    .card__arrow { background: #fffbeb; color: #f59e0b; }
    .card:hover .card__arrow { opacity: 1; transform: translateX(0); }

    /* Stopka */
    .auth-footer {
      margin-top: 28px;
      font-size: 14px;
      color: #6b7280;
      text-align: center;
    }
    .auth-footer a { color: #0b61ff; font-weight: 700; text-decoration: none; }
    .auth-footer a:hover { text-decoration: underline; }

    /* Alert */
    .alert--error {
      background: #fee2e2; color: #991b1b;
      padding: 12px 16px; border-radius: 12px;
      font-size: 13px; margin-bottom: 20px;
      max-width: 680px; width: 100%; text-align: center;
    }