.overview-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 0;
}

.page-title {
    font-size: 2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
    text-align: center;
}

.page-description {
    font-size: 1rem;
    color: #666;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2rem auto;
    line-height: 1.6;
}

.section-item {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    cursor: pointer;
    transition: background-color 0.2s;
    border-bottom: 1px solid #f0f0f0;
}

.section-header:hover {
    background-color: #f8f9fa;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
}

.section-title i {
    color: #f78817;
}

.section-progress {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.progress-text {
    font-weight: 600;
    font-size: 0.9rem;
    min-width: 40px;
    text-align: right;
}

.progress-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid;
}

.progress-indicator.complete {
    background-color: #4CAF50;
    border-color: #4CAF50;
}

.progress-indicator.partial {
    background-color: #FFC107;
    border-color: #FFC107;
}

.progress-indicator.incomplete {
    background-color: #F44336;
    border-color: #F44336;
}

.expand-icon {
    transition: transform 0.3s;
    color: #666;
}

.section-item.expanded .expand-icon {
    transform: rotate(180deg);
}

.section-content {
    display: none;
    padding: 0 1.5rem 1rem 1.5rem;
}

.section-item.expanded .section-content {
    display: block;
}

.subsection-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.subsection-item:last-child {
    border-bottom: none;
}

.subsection-title {
    font-size: 0.95rem;
    color: #555;
    flex-grow: 1;
}

.subsection-link {
    text-decoration: none;
    color: #f78817;
    transition: color 0.2s;
}

.subsection-link:hover {
    color: #e5770f;
    text-decoration: underline;
}

.subsection-progress {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.subsection-progress .progress-text {
    font-size: 0.85rem;
    min-width: 35px;
}

.subsection-progress .progress-indicator {
    width: 10px;
    height: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .overview-container {
        width: 95%;
        padding: 1rem 0;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .page-description {
        font-size: 0.9rem;
        padding: 0 1rem;
    }

    .section-header {
        padding: 0.75rem 1rem;
    }

    .section-title {
        font-size: 1rem;
    }

    .section-content {
        padding: 0 1rem 0.75rem 1rem;
    }

    .subsection-title {
        font-size: 0.9rem;
    }
}