body {
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 50%, #fbc2eb 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow: hidden;
}

.glass-container {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    padding: 50px;
    text-align: center;
    width: 350px;
    transition: all 0.5s ease;
}

.letter-wrapper {
    position: relative;
    height: 120px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.letter-e {
    font-size: 80px;
    color: white;
    font-weight: bold;
    z-index: 2;
    text-shadow: 0 0 20px rgba(255,255,255,0.5);
}

.heart-bg {
    position: absolute;
    font-size: 110px;
    color: rgba(255, 255, 255, 0.3);
    animation: pulse 2s infinite;
}
.heart-bg::before { content: "❤"; }

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.2); opacity: 0.6; }
    100% { transform: scale(1); opacity: 0.3; }
}

h2 { color: white; margin-bottom: 10px; }
p { color: rgba(255,255,255,0.9); font-size: 15px; line-height: 1.5; }

.buttons {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.btn-yes, .btn-no {
    padding: 12px 25px;
    border: none;
    border-radius: 15px;
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
}

.btn-yes { background: #4ee44e; color: white; box-shadow: 0 5px 15px rgba(78,228,78,0.4); }
.btn-no { background: #ff5e5e; color: white; }