body {
    margin: 0;
    font-family: 'Tahoma', sans-serif;
    direction: rtl;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    color: white;
    overflow-x: hidden;
}

.center {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.fade-text {
    animation: fadeIn 3s ease-in-out;
    text-align: center;
    font-size: 28px;
}

@keyframes fadeIn {
    from {opacity:0;}
    to {opacity:1;}
}

.glass-btn {
    margin-top: 20px;
    padding: 12px 25px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    border-radius: 30px;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: 0.3s;
}

.glass-btn:hover {
    background: rgba(255,255,255,0.3);
}

.hidden {
    display: none;
}

.letter-box {
    max-width: 700px;
    margin: 100px auto;
    padding: 30px;
    background: rgba(255,255,255,0.08);
    border-radius: 20px;
    backdrop-filter: blur(15px);
    text-align: center;
}

.proposal-box {
    margin-top: 40px;
}

.yes-btn, .no-btn {
    margin: 10px;
    padding: 12px 20px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-size: 16px;
    transition: 0.3s;
}

.yes-btn {
    background-color: #27ae60;
    color: white;
}

.no-btn {
    background-color: #aaa;
    color: black;
}

.yes-btn:hover {
    transform: scale(1.1);
}

.wait-msg {
    margin-top: 20px;
    color: #ffd;
}