/* =========================================================
   英语学习平台 - 结算弹窗与模态框样式表 (Modal CSS)
   ========================================================= */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    width: 100%;
    max-width: 420px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal-card {
    transform: translateY(0);
}

.modal-badge-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 12px;
    border-radius: 50%;
    background: var(--warning-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
}

.modal-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 6px;
}

.score-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 18px 0 24px;
}

.stat-box {
    background: var(--page-bg);
    border-radius: var(--radius-sm);
    padding: 12px;
    border: 1px solid var(--border-color);
}

.stat-val {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}