body {
      margin: 0;
      background: linear-gradient(to right, #fce4ec, #f3e5f5);
      font-family: 'Quicksand', sans-serif;
      display: flex;
      align-items: center;
      justify-content: center;
      height: 100vh;
    }

    .nail-wrapper {
      background: radial-gradient(circle at top center, #ffd1dc 0%, #ffe5ec 60%, #fce4ec 100%);
      width: 320px;
      height: 460px;
      border-radius: 90% 90% 40% 40% / 100% 100% 20% 20%;
      box-shadow: inset 0 6px 10px rgba(255, 255, 255, 0.6),
                  inset 0 -10px 15px rgba(0, 0, 0, 0.1),
                  0 8px 20px rgba(0, 0, 0, 0.15);
      display: flex;
      justify-content: center;
      align-items: center;
      padding-top: 40px;
      position: relative;
      flex-direction: column;
    }

    form {
      width: 80%;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    h2 {
      margin-bottom: 20px;
      color: #c2185b;
    }

    input {
      width: 100%;
      padding: 10px;
      margin: 6px 0;
      border: none;
      border-radius: 10px;
      background: #fff0f5;
      font-size: 14px;
      box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
    }

    button {
      margin-top: 15px;
      padding: 10px 20px;
      background-color: #c2185b;
      color: white;
      border: none;
      border-radius: 10px;
      cursor: pointer;
      transition: 0.3s;
      font-weight: bold;
    }

    button:hover {
      background-color: #ad1457;
    }

    .nail-shadow {
      position: absolute;
      width: 90%;
      height: 20px;
      bottom: -15px;
      left: 5%;
      border-radius: 50%;
      background: rgba(0, 0, 0, 0.1);
      filter: blur(4px);
    }

    .error-message {
      color: #b00020;
      font-weight: 600;
      margin-bottom: 10px;
      text-align: center;
    }