/* CSS variables for developer-centric dark theme */
:root {
    --bg-main: #0b0e11;
    --bg-sidebar: #07090b;
    --bg-card: #12161b;
    --bg-input: #1b2129;
    --border-color: #21262d;
    --border-highlight: #30363d;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #5f6670;

    /* Code Highlight Colors */
    --color-cyan: #38bdf8;
    --color-cyan-glow: rgba(56, 189, 248, 0.15);
    --color-green: #3fb950;
    --color-green-glow: rgba(63, 185, 80, 0.1);
    --color-red: #f85149;
    --color-red-glow: rgba(248, 81, 73, 0.1);
    --color-amber: #d29922;
    --color-amber-glow: rgba(210, 153, 34, 0.15);
    --color-purple: #ab7df6;

    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'Fira Code', 'JetBrains Mono', 'SF Mono', Menlo, monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    height: 100vh;
    overflow: hidden;
}

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

/* Sidebar Styling */
.app-sidebar {
    width: 240px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 20px 0;
    flex-shrink: 0;
}

.brand-section {
    display: flex;
    align-items: center;
    padding: 0 20px 24px 20px;
    border-bottom: 1px solid var(--border-color);
}

.brand-logo {
    margin-right: 12px;
    display: flex;
    align-items: center;
}

.brand-logo svg {
    filter: drop-shadow(0 0 6px rgba(56, 189, 248, 0.5));
}

.brand-name h2 {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.brand-name h2 span {
    color: var(--color-cyan);
    font-weight: 400;
}

.brand-name .badge {
    font-family: var(--font-mono);
    font-size: 10px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1px 6px;
    border-radius: 4px;
    color: var(--text-secondary);
    display: inline-block;
    margin-top: 2px;
}

.nav-menu {
    flex-grow: 1;
    padding: 24px 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.nav-item {
    background: none;
    border: none;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    padding: 10px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    text-align: left;
    transition: all 0.2s ease;
    width: 100%;
    text-decoration: none;
}

.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.nav-item.active {
    background-color: var(--color-cyan-glow);
    color: var(--color-cyan);
    font-weight: 600;
    box-shadow: inset 3px 0 0 var(--color-cyan);
}

.nav-item .icon {
    font-size: 16px;
    margin-right: 12px;
    display: inline-block;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.project-info .label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.project-info .value {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    word-break: break-all;
}

.status-indicator {
    display: flex;
    align-items: center;
    font-size: 12px;
    color: var(--text-secondary);
    gap: 8px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    background-color: var(--text-muted);
}

.dot.pulse-green {
    background-color: var(--color-green);
    box-shadow: 0 0 6px var(--color-green);
    animation: pulse 2s infinite;
}

.dot.pulse-red {
    background-color: var(--color-red);
    box-shadow: 0 0 6px var(--color-red);
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(63, 185, 80, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 5px rgba(63, 185, 80, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(63, 185, 80, 0); }
}

/* Workspace Panels */
.app-workspace {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    overflow: hidden;
}

.workspace-header {
    height: 70px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    flex-shrink: 0;
}

.header-title h1 {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.header-title p {
    font-size: 12px;
    color: var(--text-secondary);
}

.header-actions {
    display: flex;
    gap: 12px;
}

/* Buttons */
.btn {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    background-color: transparent;
    color: var(--text-primary);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: #24292f;
    color: #f0f6fc;
}

.btn-primary:hover:not(:disabled) {
    background-color: #30363d;
    border-color: #8b949e;
}

.btn-secondary {
    background: none;
    color: var(--text-secondary);
}

.btn-secondary:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.btn-accent {
    background-color: var(--color-cyan);
    color: #050505;
    border-color: var(--color-cyan);
    font-weight: 600;
}

.btn-accent:hover:not(:disabled) {
    background-color: #7dd3fc;
    border-color: #7dd3fc;
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.4);
}

.btn-large {
    padding: 12px 24px;
    font-size: 14px;
    justify-content: center;
}

.btn-full {
    width: 100%;
}

/* Tab Management */
.workspace-content {
    flex-grow: 1;
    overflow-y: auto;
    position: relative;
    padding: 20px;
}

.dashboard-sections {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 1500px;
    margin: 0 auto;
}

.section-block {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.section-heading {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}

.section-heading .step-num {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--color-cyan-glow);
    color: var(--color-cyan);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.section-heading h2 {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.section-heading .section-sub {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Grid Layouts */
.grid-layout {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 20px;
    align-items: stretch;
}

.grid-layout.setup-grid {
    grid-template-columns: 1fr 1fr;
}

.control-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.viewer-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow: hidden;
}

/* Cards styling */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.card-glow {
    position: relative;
}

.card-glow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-purple));
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    flex-shrink: 0;
    gap: 8px;
}

.card-header h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.header-badge {
    background-color: var(--color-cyan-glow);
    color: var(--color-cyan);
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid rgba(56, 189, 248, 0.2);
    white-space: nowrap;
}

.header-action-text {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-amber);
    background-color: var(--color-amber-glow);
    padding: 2px 8px;
    border-radius: 4px;
}

.card-body {
    flex-grow: 1;
    overflow: hidden;
}

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

.section-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 16px;
}

.form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.form-row label {
    font-weight: 500;
    font-size: 13px;
}

.form-value {
    font-family: var(--font-mono);
    color: var(--color-cyan);
    font-weight: 600;
}

label.field-label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--color-cyan);
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    outline: none;
    margin: 8px 0;
}

.form-control {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    padding: 8px 12px;
    font-family: var(--font-sans);
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-control:focus {
    border-color: var(--color-cyan);
}

textarea.form-control {
    font-family: var(--font-mono);
    font-size: 14px;
    resize: vertical;
    min-height: 160px;
    line-height: 1.5;
}

select[multiple].form-control {
    min-height: 90px;
}

.input-info {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

.input-error {
    display: block;
    font-size: 11px;
    color: var(--color-red);
    margin-top: 6px;
}

.form-hr {
    border: none;
    border-top: 1px dashed var(--border-color);
    margin: 16px 0;
}

.or-divider {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 18px 0;
    color: var(--text-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.or-divider::before, .or-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--border-color);
}

/* Incident dropdown (demo prefill) */
.incident-dropdown-row {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.incident-dropdown-row select {
    flex-grow: 1;
}

/* Traceback Container */
.traceback-container {
    background-color: #07090b;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    overflow-x: auto;
    max-height: 240px;
}

.traceback-container code {
    font-family: var(--font-mono);
    font-size: 14px;
    color: #ff7b72;
    display: block;
    white-space: pre;
}

/* Canvas Graph Visualizer */
.card-visualizer {
    flex-grow: 1;
    position: relative;
    min-height: 480px;
}

.graph-container {
    width: 100%;
    height: 100%;
    position: relative;
    background-color: #07090b;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.graph-legend {
    display: flex;
    gap: 12px;
    font-size: 11px;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.dot-file { background-color: var(--color-cyan); }
.dot-func { background-color: var(--color-purple); }
.dot-class { background-color: #f778ba; }
.dot-release { background-color: var(--color-amber); }
.dot-changed { background-color: var(--color-red); }
.dot-import { background-color: #7ee787; }
.dot-repo { background-color: var(--text-primary); }

.legend-line {
    width: 12px;
    height: 2px;
    display: inline-block;
}

.line-calls { background-color: #58a6ff; }
.line-depends { background-color: #ff7b72; }
.line-contains { background-color: rgba(255,255,255,0.3); border-top: 1px dashed rgba(255,255,255,0.3); background: none; }
.line-modified { background-color: var(--color-amber); }
.line-release { background-color: var(--color-purple); }

#graph-canvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: grab;
}

.canvas-instructions {
    position: absolute;
    bottom: 8px;
    left: 12px;
    font-size: 10px;
    color: var(--text-muted);
    pointer-events: none;
}

.graph-tooltip {
    position: absolute;
    background-color: rgba(7, 9, 11, 0.95);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 11px;
    pointer-events: none;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    display: none;
    max-width: 280px;
}

.tooltip-title {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    word-break: break-all;
}

.tooltip-row {
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
    gap: 12px;
    margin-top: 2px;
}

.tooltip-label {
    color: var(--text-muted);
}

.tooltip-val {
    font-family: var(--font-mono);
}

.graph-empty-state {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    padding: 20px;
}

/* Stat tiles (BaselineStats display) */
.stat-tiles {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin-top: 12px;
}

.stat-tile {
    background-color: rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px 8px;
    text-align: center;
}

.stat-tile .stat-value {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 700;
    color: var(--color-cyan);
}

.stat-tile .stat-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

/* Console Log Box */
.terminal-card {
    background-color: #07090b;
}

.terminal-badge {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 9px;
    padding: 1px 5px;
    border-radius: 4px;
}

.terminal-body {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-secondary);
    overflow-y: auto;
    padding-right: 4px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    white-space: pre-wrap;
    max-height: 180px;
    min-height: 60px;
}

.terminal-line {
    line-height: 1.4;
}

.text-blue { color: var(--color-cyan); }
.text-green { color: var(--color-green); }
.text-amber { color: var(--color-amber); }
.text-red { color: var(--color-red); }
.text-purple { color: var(--color-purple); }
.text-muted { color: var(--text-muted); }

/* Findings Table */
.scrollable-y {
    overflow-y: auto;
    padding-right: 4px;
}

.table-container {
    flex-grow: 1;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: rgba(0, 0, 0, 0.1);
    max-height: 420px;
}

.findings-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.findings-table th {
    background-color: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border-color);
    padding: 8px 12px;
    text-align: left;
    color: var(--text-muted);
    font-weight: 600;
    position: sticky;
    top: 0;
}

.findings-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.findings-table tr:last-child td {
    border-bottom: none;
}

.findings-table tbody tr {
    transition: background-color 0.2s ease;
    cursor: pointer;
}

.findings-table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.findings-table tbody tr.row-root-cause {
    background-color: rgba(63, 185, 80, 0.05);
    border-left: 3px solid var(--color-green);
}

.findings-table tbody tr.row-root-cause:hover {
    background-color: rgba(63, 185, 80, 0.08);
}

.table-placeholder {
    text-align: center;
    color: var(--text-muted);
    padding: 30px !important;
}

.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
}

.findings-table tr.row-root-cause .rank-badge {
    background-color: var(--color-green-glow);
    border-color: var(--color-green);
    color: var(--color-green);
}

.symbol-cell {
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-weight: 500;
}

.true-cause-label {
    color: var(--color-green);
    font-size: 10px;
    font-weight: 700;
    margin-left: 6px;
    letter-spacing: 0.2px;
    text-transform: uppercase;
}

.change-tag {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-sans);
}

.change-modified {
    background-color: var(--color-amber-glow);
    color: var(--color-amber);
    border: 1px solid rgba(210, 153, 34, 0.2);
}

.change-added {
    background-color: var(--color-green-glow);
    color: var(--color-green);
    border: 1px solid rgba(63, 185, 80, 0.2);
}

.change-deleted {
    background-color: var(--color-red-glow);
    color: var(--color-red);
    border: 1px solid rgba(248, 81, 73, 0.2);
}

.score-value {
    font-family: var(--font-mono);
    color: var(--color-cyan);
    font-weight: 600;
}

.btn-view-diff {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 2px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    transition: all 0.2s ease;
}

.btn-view-diff:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--border-highlight);
}

/* Diff Section */
.diff-section {
    margin-top: 12px;
    background-color: #07090b;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    max-height: 260px;
    flex-shrink: 0;
}

.diff-section.hidden {
    display: none;
}

.diff-header {
    background-color: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
    padding: 6px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.diff-title {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
}

.btn-close:hover {
    color: var(--text-primary);
}

.diff-pre {
    padding: 10px;
    overflow: auto;
    flex-grow: 1;
}

.diff-pre code {
    font-family: var(--font-mono);
    font-size: 11px;
    display: block;
    line-height: 1.5;
}

.diff-line-add {
    background-color: rgba(63, 185, 80, 0.15);
    color: #7ee787;
    display: block;
}

.diff-line-del {
    background-color: rgba(248, 81, 73, 0.15);
    color: #ff7b72;
    display: block;
}

.diff-line-meta {
    color: var(--color-purple);
    display: block;
    opacity: 0.8;
}

/* Changed-symbols tag list (setup panel result) */
.changes-tree {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 10px;
}

.change-item {
    background-color: rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.change-symbol-name {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Release list (synced so far) */
.releases-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 8px;
}

.release-item {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px 12px;
}

.release-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.release-tag-badge {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-cyan);
    background-color: var(--color-cyan-glow);
    border: 1px solid rgba(56, 189, 248, 0.2);
    padding: 2px 8px;
    border-radius: 4px;
    white-space: nowrap;
}

.release-time {
    font-size: 11px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.empty-state {
    color: var(--text-muted);
    font-size: 12px;
    padding: 16px;
    text-align: center;
    border: 1px dashed var(--border-color);
    border-radius: 6px;
}

.error-banner {
    background-color: var(--color-red-glow);
    border: 1px solid rgba(248, 81, 73, 0.3);
    color: #ff9f97;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    margin-top: 10px;
    font-family: var(--font-mono);
    white-space: pre-wrap;
}

.error-banner.hidden {
    display: none;
}

.spinner {
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 2px solid rgba(255,255,255,0.2);
    border-top-color: var(--color-cyan);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-highlight);
}

@media (max-width: 1100px) {
    .grid-layout, .grid-layout.setup-grid {
        grid-template-columns: 1fr;
    }
    .stat-tiles {
        grid-template-columns: repeat(3, 1fr);
    }
}