:root {
    --bg-color: #0d1117;
    --sidebar-bg: #161b22;
    --content-bg: #0d1117;
    --border-color: #30363d;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent-color: #58a6ff;
    --accent-dim: rgba(88, 166, 255, 0.1);

    /* GitHub-like Diff Colors */
    --diff-add-bg: rgba(46, 160, 67, 0.15);
    --diff-add-text: #e6ffec;
    --diff-del-bg: rgba(248, 81, 73, 0.15);
    --diff-del-text: #ffebe9;

    --new-color: #3fb950;
    --delete-color: #f85149;

    --hover-bg: rgba(255, 255, 255, 0.04);
    --selected-bg: rgba(56, 139, 253, 0.15);
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    margin: 0;
    height: 100vh;
    overflow: hidden;
    /* Prevent body scroll, let containers scroll */
}

/* Layout */
.app-layout {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Sidebar */
.sidebar {
    width: 350px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    margin: 0 0 8px 0;
    font-size: 1.2rem;
    color: var(--text-primary);
}

.repo-stats {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.commit-list {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

.sidebar-item {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.1s;
}

.sidebar-item:hover {
    background-color: var(--hover-bg);
}

.sidebar-item.selected {
    background-color: var(--selected-bg);
    border-left: 3px solid var(--accent-color);
}

.sidebar-item .date {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 4px;
}

.sidebar-item .message {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-primary);
}

.sidebar-item .meta-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
}

.sidebar-item .author {
    color: var(--text-secondary);
}

.sidebar-item .diff-badge {
    font-family: monospace;
    font-weight: bold;
}

.diff-badge.pos {
    color: var(--new-color);
}

.diff-badge.neg {
    color: var(--delete-color);
}

/* Main Content */
.content-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--content-bg);
    overflow: hidden;
}

.content-header {
    padding: 20px 40px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.header-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.github-links {
    display: flex;
    gap: 15px;
}

.github-link {
    color: var(--text-secondary);
    transition: color 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    font-size: 0.9rem;
    padding: 6px 10px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.03);
}

.github-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}

.link-label {
    font-weight: 500;
}

.detail-view {
    flex: 1;
    padding: 40px;
    overflow-y: auto;
}

/* Stats Bar */
.stats-bar {
    display: flex;
    gap: 40px;
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 700;
    font-family: monospace;
}

.detail-header {
    margin-bottom: 30px;
}

.detail-title {
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 10px;
    line-height: 1.3;
}

.detail-meta {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Summary Box */
.summary-box {
    margin-bottom: 30px;
}

.summary-box h3 {
    font-size: 1rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-top: 0;
    margin-bottom: 15px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
}

.summary-item {
    background-color: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: 6px;
}

.summary-item .service-label {
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.summary-item .service-stats {
    font-size: 0.9rem;
    font-family: monospace;
}

/* Changes Lists */
.change-header {
    margin: 30px 0 15px 0;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding-bottom: 5px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.service-group {
    background-color: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: 16px;
    overflow: hidden;
}

.service-name {
    padding: 10px 16px;
    background-color: rgba(255, 255, 255, 0.05);
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    justify-content: space-between;
}

.permission-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.permission-list li {
    padding: 8px 16px;
    font-family: monospace;
    /* ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace; */
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* GitHub Style Diff Rows */
.diff-row-add {
    background-color: var(--diff-add-bg);
    color: var(--diff-add-text);
}

.diff-row-del {
    background-color: var(--diff-del-bg);
    color: var(--diff-del-text);
}

.marker {
    display: inline-block;
    width: 20px;
    color: rgba(255, 255, 255, 0.5);
    user-select: none;
}

.text-green {
    color: var(--new-color);
}

.text-red {
    color: var(--delete-color);
}

.loading,
.empty-state {
    text-align: center;
    color: var(--text-secondary);
    margin-top: 100px;
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-layout {
        flex-direction: column;
        /* Stack vertically */
    }

    .sidebar {
        width: 100%;
        height: 40vh;
        /* Fixed height for sidebar on mobile */
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .commit-list {
        /* overflow-y handled by flex */
    }

    .content-pane {
        width: 100%;
        height: 60vh;
        /* Remaining height */
    }

    .stats-bar {
        flex-wrap: wrap;
        /* Wrap stats on small screens */
        gap: 20px;
    }

    .stat {
        min-width: 40%;
    }

    .detail-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .detail-view {
        padding: 20px;
        /* Reduce padding */
    }
}

/* Load More Button */
.load-more-btn {
    display: block;
    width: 100%;
    padding: 12px;
    background: var(--bg-secondary);
    /* Ensure this var exists or use sidebar-bg */
    background-color: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    text-align: center;
    font-size: 14px;
    transition: background 0.2s;
    margin-top: 10px;
    border-radius: 4px;
}

.load-more-btn:hover {
    background-color: var(--hover-bg);
    color: var(--text-primary);
}

.loading-more {
    text-align: center;
    padding: 10px;
    color: var(--text-secondary);
    font-size: 13px;
}