.option-btn {
    width: 100%;
    padding: 1.25rem;
    background: #1e293b;
    border: 2px solid #334155;
    border-radius: 1.25rem;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 1rem;
    cursor: pointer;
    color: #e2e8f0;
}

.option-btn:hover {
    background: #2d3748;
    border-color: #4a5568;
    transform: translateY(-1px);
}

.option-btn.selected {
    background: #233554;
    border-color: #3b82f6;
    box-shadow: 0 0 0 1px #3b82f6, 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    color: #60a5fa;
}


@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeInUp 0.5s ease-out forwards;
}