/* ── CSS Variables ─────────────────────────────────────────────────── */
:root {
    --bg: #f5f5f5;
    --bg-card: #ffffff;
    --bg-code: #f6f8fa;
    --bg-hover: #e8e8e8;
    --bg-selected: #d0e8ff;
    --bg-th: #fafafa;
    --text: #24292f;
    --text-muted: #666666;
    --text-dim: #999999;
    --border: #ccc;
    --border-light: #eee;
    --link: #007bff;
    --sev-critical: #d32f2f;
    --sev-major: #1565c0;
    --sev-minor: #f59e0b;
    --sev-nit: #94a3b8;
    --diff-add: rgba(46, 160, 67, 0.15);
    --diff-del: rgba(248, 81, 73, 0.15);
    --confidence-high: #22863a;
    --confidence-medium: #d67f05;
    --confidence-low: #d73a49;
    --ai-border: #283593;
    --badge-ok-bg: #e6ffed;
    --badge-ok-fg: #22863a;
    --badge-ok-border: #a6f3a6;
    --badge-revision-bg: #fff8e1;
    --badge-revision-fg: #d67f05;
    --badge-revision-border: #ffe082;
    --badge-blocked-bg: #ffeef0;
    --badge-blocked-fg: #d73a49;
    --badge-blocked-border: #f9a8a8;
    --badge-stage-bg: #e0f7fa;
    --badge-stage-fg: #006064;
    --badge-stage-border: #b2ebf2;
    --badge-source-bg: #f3e8fd;
    --badge-source-fg: #6f42c1;
    --badge-source-border: #d8b9fc;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0d1117;
        --bg-card: #161b22;
        --bg-code: #1c2128;
        --bg-hover: #1c2128;
        --bg-selected: #1a3a5c;
        --bg-th: #1c2128;
        --text: #c9d1d9;
        --text-muted: #8b949e;
        --text-dim: #6e7681;
        --border: #30363d;
        --border-light: #21262d;
        --link: #58a6ff;
        --diff-add: rgba(46, 160, 67, 0.2);
        --diff-del: rgba(248, 81, 73, 0.2);
        --confidence-high: #3fb950;
        --confidence-medium: #d29922;
        --confidence-low: #f85149;
        --ai-border: #5c6bc0;
        --badge-ok-bg: #0d2818;
        --badge-ok-fg: #3fb950;
        --badge-ok-border: #238636;
        --badge-revision-bg: #2d1f00;
        --badge-revision-fg: #d29922;
        --badge-revision-border: #9e6a03;
        --badge-blocked-bg: #2d0a0a;
        --badge-blocked-fg: #f85149;
        --badge-blocked-border: #da3633;
        --badge-stage-bg: #0a2a2e;
        --badge-stage-fg: #56d4e0;
        --badge-stage-border: #1e6e76;
        --badge-source-bg: #1e0a30;
        --badge-source-fg: #bc8cff;
        --badge-source-border: #6e40c9;
    }
}

/* ── Reset & Base ──────────────────────────────────────────────────── */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    font-size: 13px;
    line-height: 1.4;
    color: var(--text);
    background: var(--bg);
    padding: 12px;
    max-width: 1200px;
    margin: 0 auto;
}
h1 { font-size: 1.6em; font-weight: 600; margin-bottom: 4px; }
h2 { font-size: 1.1em; font-weight: 600; margin: 16px 0 8px; }
h3 { font-size: 1.0em; font-weight: 600; margin: 12px 0 6px; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
.hidden { display: none !important; }

/* ── Header & Nav ──────────────────────────────────────────────────── */
header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 4px;
}
header h1 { margin-bottom: 0; }
header nav {
    display: flex;
    gap: 4px;
    margin-left: auto;
}
.nav-toggle {
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--bg-card);
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
.nav-toggle:hover {
    color: var(--text);
    background: var(--bg-hover);
}
.nav-toggle.active {
    background: var(--link);
    color: #fff;
    border-color: var(--link);
}
.nav-back {
    font-family: inherit;
    font-size: 12px;
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--bg-card);
    color: var(--text-muted);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    margin-bottom: 12px;
}
.nav-back:hover {
    color: var(--text);
    text-decoration: none;
    background: var(--bg-hover);
}

/* ── Disclaimer ────────────────────────────────────────────────────── */
.disclaimer {
    background: var(--bg-card);
    border: 1px solid var(--ai-border);
    border-left: 3px solid var(--ai-border);
    border-radius: 4px;
    padding: 8px 12px;
    margin: 12px 0;
    font-size: 12px;
    color: var(--text-muted);
}

/* ── Stats Row ─────────────────────────────────────────────────────── */
.stats-row {
    display: flex;
    gap: 12px;
    margin: 12px 0;
}
.stat-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 8px 16px;
    text-align: center;
    flex: 1;
}
.stat-num {
    font-size: 20px;
    font-weight: 600;
}
.stat-label {
    color: var(--text-muted);
    font-size: 11px;
    text-transform: uppercase;
}

/* ── Filter Bar ────────────────────────────────────────────────────── */
.filter-bar {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 8px 12px;
    margin: 12px 0;
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}
.filter-bar label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.filter-group {
    display: flex;
    align-items: center;
    gap: 6px;
}
.filter-count {
    font-size: 11px;
    color: var(--text-dim);
    margin-left: auto;
}
.search-input {
    font-family: inherit;
    font-size: 13px;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--bg);
    color: var(--text);
    width: 260px;
    outline: none;
}
.search-input:focus {
    border-color: var(--link);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.15);
}
.search-input::placeholder { color: var(--text-dim); }
.filter-select {
    font-family: inherit;
    font-size: 13px;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--bg-card);
    color: var(--text);
    cursor: pointer;
    outline: none;
}

/* ── Data Table ────────────────────────────────────────────────────── */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
}
.data-table th {
    background: var(--bg-th);
    text-align: left;
    padding: 6px 8px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    user-select: none;
}
.data-table th:hover { color: var(--text); }
.data-table td {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-light);
}
.data-table tr:hover td {
    background: var(--bg-hover);
    cursor: pointer;
}
.data-table tr.selected td {
    background: var(--bg-selected);
}

/* ── Badges ────────────────────────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 600;
}
.badge-ok {
    background: var(--badge-ok-bg);
    color: var(--badge-ok-fg);
    border: 1px solid var(--badge-ok-border);
}
.badge-revision {
    background: var(--badge-revision-bg);
    color: var(--badge-revision-fg);
    border: 1px solid var(--badge-revision-border);
}
.badge-blocked {
    background: var(--badge-blocked-bg);
    color: var(--badge-blocked-fg);
    border: 1px solid var(--badge-blocked-border);
}
.badge-stage {
    background: var(--badge-stage-bg);
    color: var(--badge-stage-fg);
    border: 1px solid var(--badge-stage-border);
}
.badge-source {
    background: var(--badge-source-bg);
    color: var(--badge-source-fg);
    border: 1px solid var(--badge-source-border);
}

/* ── Finding Dots ──────────────────────────────────────────────────── */
.findings-dots {
    display: inline-flex;
    gap: 4px;
    align-items: center;
}
.finding-dot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
}
.dot-critical { background: var(--sev-critical); }
.dot-major { background: var(--sev-major); }
.dot-minor { background: var(--sev-minor); color: #24292f; }
.dot-nit { background: var(--sev-nit); }
.dot-zero { opacity: 0.25; }

/* ── Stages ────────────────────────────────────────────────────────── */
.stages {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    margin: 8px 0;
}
.stage-row {
    display: flex;
    padding: 4px 12px;
    border-bottom: 1px solid var(--border-light);
    font-size: 12px;
}
.stage-row:last-child { border-bottom: none; }
.stage-label {
    min-width: 120px;
    flex-shrink: 0;
    font-weight: 600;
    color: var(--badge-stage-fg);
    margin-right: 8px;
}
.stage-text { color: var(--text-muted); }

/* ── Thread Tree ───────────────────────────────────────────────────── */
.thread-tree {
    list-style: none;
    padding: 0;
    margin: 8px 0;
}
.thread-tree li {
    padding: 2px 0;
    font-size: 12px;
}
.thread-tree li li { margin-left: 16px; }
.thread-tree .thread-entry { display: inline; }
.thread-tree .thread-date { color: var(--text-dim); margin-right: 6px; }
.thread-tree .thread-author { color: var(--text-muted); margin-right: 6px; }
.thread-tree .thread-subject a { color: var(--link); text-decoration: none; }
.thread-tree .thread-subject a:hover { text-decoration: underline; }
.thread-arrow { color: var(--text-dim); margin-right: 4px; }
.thread-tag-rb {
    display: inline-block;
    font-size: 10px;
    padding: 0 4px;
    border-radius: 2px;
    margin-left: 4px;
    background: var(--badge-ok-bg);
    color: var(--badge-ok-fg);
}
.thread-tag-reply {
    display: inline-block;
    font-size: 10px;
    padding: 0 4px;
    border-radius: 2px;
    margin-left: 4px;
    background: var(--badge-source-bg);
    color: var(--badge-source-fg);
}
.thread-current {
    font-weight: 600;
    background: var(--bg-selected);
    padding: 1px 4px;
    border-radius: 2px;
}

/* ── Message Body ──────────────────────────────────────────────────── */
.msg-body {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    margin: 8px 0;
    overflow: hidden;
}
.msg-body-header {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-th);
    font-size: 12px;
}
.msg-body-content {
    padding: 0;
    font-size: 12px;
    line-height: 1.5;
    overflow-x: auto;
}
.msg-body-content pre {
    padding: 8px 12px;
    margin: 0;
    white-space: pre-wrap;
    word-break: break-word;
    font-family: inherit;
    font-size: 12px;
    line-height: 1.5;
}

/* ── Finding Card ──────────────────────────────────────────────────── */
.finding {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    margin: 12px 0;
    overflow: hidden;
}
.finding-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-th);
    font-size: 12px;
}
.finding-header .file { color: var(--link); font-weight: 600; }
.finding-header .line { color: var(--text-muted); }
.finding-body {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-light);
}
.finding-title { font-weight: 600; margin-bottom: 4px; }
.finding-desc { color: var(--text); margin-bottom: 6px; }
.finding-suggestion {
    background: var(--bg-code);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 4px 8px;
    font-size: 12px;
    display: inline-block;
}
.finding-footer {
    padding: 6px 12px;
    font-size: 11px;
    color: var(--text-dim);
    display: flex;
    gap: 16px;
    align-items: center;
}

/* ── Patch Context / Diff ──────────────────────────────────────────── */
.patch-context {
    background: var(--bg-code);
    border-bottom: 1px solid var(--border-light);
    padding: 0;
    font-size: 12px;
    line-height: 1.5;
    overflow-x: auto;
}
.diff-line { padding: 1px 12px; white-space: pre; }
.diff-add { background: var(--diff-add); }
.diff-del { background: var(--diff-del); }
.diff-hdr { color: #005cc5; font-weight: 600; }
.diff-ctx { color: var(--text-muted); }

/* ── Key-Value Pairs ───────────────────────────────────────────────── */
.kv {
    display: flex;
    gap: 8px;
    font-size: 12px;
    margin: 2px 0;
}
.kv .kv-key {
    color: var(--text-muted);
    min-width: 100px;
    flex-shrink: 0;
    font-weight: 600;
}
.kv .kv-val { color: var(--text); }

/* ── Pagination ────────────────────────────────────────────────────── */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 12px 0;
    font-size: 12px;
    color: var(--text-muted);
}
.pagination button {
    font-family: inherit;
    font-size: 12px;
    padding: 4px 12px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--bg-card);
    color: var(--text);
    cursor: pointer;
}
.pagination button:hover { background: var(--bg-hover); }
.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ── Chart Container ───────────────────────────────────────────────── */
.chart-container {
    height: 400px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    margin: 12px 0;
}

/* ── Stat Grid ─────────────────────────────────────────────────────── */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 12px;
    margin: 12px 0;
}

/* ── Legend ─────────────────────────────────────────────────────────── */
.legend {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-top: 12px;
    font-size: 11px;
    color: var(--text-dim);
}
.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.legend-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

/* ── Confidence Badges ─────────────────────────────────────────────── */
.confidence { font-weight: 600; }
.conf-high { color: var(--confidence-high); font-weight: 600; }
.conf-medium { color: var(--confidence-medium); font-weight: 600; }
.conf-low { color: var(--confidence-low); font-weight: 600; }

/* ── Meta Row ──────────────────────────────────────────────────────── */
.meta-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
    margin: 4px 0 12px;
    font-size: 12px;
    color: var(--text-muted);
}
.meta-sep { color: var(--border); }

/* ── Findings Summary ──────────────────────────────────────────────── */
.findings-summary {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 8px 12px;
    margin: 8px 0;
    display: flex;
    gap: 16px;
    align-items: center;
    font-size: 12px;
}

/* ── Keyboard Hint ─────────────────────────────────────────────────── */
kbd {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 1px 4px;
    font-size: 11px;
    color: var(--text-muted);
}

/* ── Loading Indicator ─────────────────────────────────────────────── */
.loading-bar {
    font-size: 11px;
    color: var(--text-dim);
    padding: 8px;
    text-align: center;
}

/* ── Error ──────────────────────────────────────────────────────────── */
.error-box {
    background: var(--bg-card);
    border: 1px solid var(--sev-critical);
    border-radius: 4px;
    padding: 16px;
    margin: 24px 0;
    text-align: center;
    color: var(--text-muted);
}

/* ── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .stats-row { flex-wrap: wrap; }
    .stat-box { min-width: 120px; }
    .filter-bar { flex-direction: column; align-items: stretch; }
    .search-input { width: 100%; }
    header { flex-wrap: wrap; }
}