* {
    box-sizing: border-box;
  }
  
  body {
    font-family: "Poppins", sans-serif;
    background: linear-gradient(135deg, #fce7f3, #e0e7ff);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100dvh;
    margin: 0;
    padding: 16px;
    overflow: hidden;
  }
  
  .card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    padding: 60px 40px;
    text-align: center;
    max-width: 500px;
    width: 100%;
    transition: all 0.3s ease;
    animation: fadeIn 0.5s ease;
  }
  
  @keyframes fadeIn {
    from {opacity: 0; transform: translateY(20px);}
    to {opacity: 1; transform: translateY(0);}
  }
  
  h1 {
    color: #db2777;
    font-size: 1.6rem;
    margin-bottom: 1rem;
  }
  
  p {
    color: #4b5563;
    font-size: 1rem;
    line-height: 1.5;
    margin-bottom: 1.5rem;
  }
  
  input {
    width: 100%;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid #d1d5db;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s ease;
  }
  
  input:focus {
    border-color: #db2777;
  }
  
  button {
    padding: 10px 22px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.25s ease, background-color 0.2s ease, box-shadow 0.2s ease;
  }
  
  #submitName {
    background-color: #f472b6;
    color: white;
    width: 100%;
    margin-top: 1rem;
  }
  
  #submitName:hover {
    background-color: #ec4899;
    box-shadow: 0 4px 10px rgba(244, 114, 182, 0.4);
  }
  
  .btn-group {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
  }
  
  #yesBtn {
    background-color: #f472b6;
    color: white;
    box-shadow: 0 4px 10px rgba(244, 114, 182, 0.4);
  }
  
  #noBtn {
    background-color: #e5e7eb;
    color: #111827;
  }
  
  #noBtn:hover {
    background-color: #d1d5db;
  }
  
  .popup {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0,0,0,0.4);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 9999;
  }
  
  .popup.active {
    opacity: 1;
    pointer-events: all;
  }
  
  .popup-content {
    background: #fff;
    padding: 40px 70px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
    animation: pop 0.4s ease;
    max-width: 520px;
    width: 90%;
    position: relative;
  }
  
  @keyframes pop {
    from {transform: scale(0.8); opacity: 0;}
    to {transform: scale(1); opacity: 1;}
  }
  
  .popup h2 {
    color: #db2777;
    margin-bottom: 0.5rem;
  }
  
  .hearts {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
  }
  
  .heart {
    position: absolute;
    width: 22px;
    height: 22px;
    background-color: #f472b6;
    transform: rotate(45deg);
    animation: float 2s ease forwards;
    opacity: 0.9;
  }
  
  .heart::before,
  .heart::after {
    content: "";
    position: absolute;
    width: 22px;
    height: 22px;
    background-color: #f472b6;
    border-radius: 50%;
  }
  
  .heart::before { top: -11px; left: 0; }
  .heart::after { left: -11px; top: 0; }
  
  footer {
    position: relative;
    z-index: 0;
  }
  
  .footer {
    text-align: center;
    margin-top: 16px;
    color: #6b7280;
    font-size: 0.95rem;
    position: relative;
    z-index: 0;
  }
  
  .footer a {
    color: #db2777;
    text-decoration: none;
  }
  
  .footer a:hover {
    text-decoration: underline;
  }
  
  @keyframes float {
    to {
      transform: translateY(-150px) rotate(45deg);
      opacity: 0;
    }
  }
  
  @media (max-width: 480px) {
    .card { padding: 28px 20px; }
    h1 { font-size: 1.4rem; }
    p { font-size: 0.95rem; }
    button { font-size: 0.9rem; padding: 8px 18px; }
    .popup-content { padding: 32px 28px; max-width: 90%; }
  }