/* ========================================
   奖励选择界面样式
   ======================================== */

.reward-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(11, 13, 16, 0.9);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease-in-out;
}

.reward-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.reward-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.reward-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 0 0 20px rgba(0, 242, 255, 0.5);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin: 0;
}

.reward-options {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.reward-card {
    width: 200px;
    height: 260px;
    background: rgba(20, 24, 30, 0.9);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    opacity: 0;
    transform: translateY(30px);
}

.reward-overlay.visible .reward-card {
    opacity: 1;
    transform: translateY(0);
}

.reward-overlay.visible .reward-card:nth-child(1) {
    transition-delay: 0.1s;
}

.reward-overlay.visible .reward-card:nth-child(2) {
    transition-delay: 0.2s;
}

.reward-overlay.visible .reward-card:nth-child(3) {
    transition-delay: 0.3s;
}

.reward-card:hover {
    transform: scale(1.08);
    border-color: var(--primary-color);
    box-shadow: 0 0 30px rgba(0, 242, 255, 0.4);
    background: rgba(0, 242, 255, 0.08);
}

.reward-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.reward-icon svg {
    width: 60px;
    height: 60px;
}

.reward-name {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
}

.reward-desc {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    line-height: 1.4;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .reward-options {
        flex-direction: column;
        gap: 20px;
    }
    
    .reward-card {
        width: 180px;
        height: 220px;
    }
    
    .reward-title {
        font-size: 1.5rem;
    }
}