body {
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(45deg, #5a0e0e, #f93030);
    font-family: Arial, sans-serif;
    overflow: hidden;
}

.container {
    text-align: center;
    z-index: 1;
}

.countdown {
    font-size: 4rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.2);
    padding: 2rem;
    border-radius: 15px;
    backdrop-filter: blur(5px);
}

.heart {
    position: fixed;
    font-size: 2.5rem;
    user-select: none;
    animation: float 6s linear infinite;
}

.heart.wine-red {
    color: #722F37;
}

.heart.green {
    color: #2E8B57;
}

@keyframes float {
    0% {
        transform: translateY(100vh) scale(1);
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) scale(0.5);
        opacity: 0;
    }
}

.alert {
    margin-bottom: 1rem;
    padding: 0.75rem 1.25rem;
    border: 1px solid transparent;
    border-radius: 0.25rem;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}