:root {
    /* Theme variables from AGENTS.md */
    --clr-bun: #F472B6; /* Bun Pink */
    --clr-node: #68A063; /* Node Green */
    --clr-accent: #FBBF24;
    --clr-bg: #0A0A0A;
    --clr-bg-panel: #141414;
    --clr-border: #2A2A2A;
    
    --clr-text: #F3F4F6;
    --clr-text-muted: #9CA3AF;
    
    --radius: 12px;
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--clr-bg);
    color: var(--clr-text);
    min-height: 100vh;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* Typography & Utils */
h1 { font-size: 1.5rem; font-weight: 700; display: inline-flex; align-items: center; gap: 0.5rem; }
h2 { font-size: 1.25rem; font-weight: 600; margin-bottom: 1rem; }
h3 { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--clr-text-muted); margin-bottom: 1rem; }
.accent { color: var(--clr-accent); }
.mt-2 { margin-top: 0.5rem; }
.hidden { display: none !important; }

.bun-color { color: var(--clr-bun) !important; filter: drop-shadow(0 0 8px rgba(244,114,182,0.4)); }
.node-color { color: var(--clr-node) !important; filter: drop-shadow(0 0 8px rgba(104,160,99,0.4)); }
.bun-bg { background-color: var(--clr-bun) !important; }
.node-bg { background-color: var(--clr-node) !important; }

/* Layout Elements */
.glass-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--clr-border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.controls {
    display: flex;
    gap: 0.5rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.5rem;
}

@media (max-width: 900px) {
    .dashboard-grid { grid-template-columns: 1fr; }
}

/* Panels */
.glass-panel {
    background: var(--clr-bg-panel);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

/* Sidebar Elements */
.filter-group {
    margin-bottom: 1.5rem;
}

.filter-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
}

.input-select {
    width: 100%;
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    color: var(--clr-text);
    padding: 0.5rem;
    border-radius: 6px;
    font-family: inherit;
    outline: none;
}
.input-select:focus { border-color: var(--clr-accent); }

.checkbox-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    cursor: pointer;
    font-weight: 400 !important;
}

.toggle-switch {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
    cursor: pointer;
}

.helper-text {
    font-size: 0.75rem;
    color: var(--clr-text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--clr-accent);
    color: var(--clr-bg);
}
.btn-primary:hover { opacity: 0.9; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--clr-border);
    color: var(--clr-text);
}
.btn-outline:hover { background: rgba(255,255,255,0.05); }

/* Stats Row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: 1rem;
}

.stat-title {
    font-size: 0.75rem;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

/* Chart System */
.chart-container {
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    /* Required for export screenshot context */
    overflow: hidden; 
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--clr-border);
    vertical-align: middle;
}

.legend {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
}

.legend-item { display: flex; align-items: center; gap: 0.4rem; }
.legend-box { width: 12px; height: 12px; border-radius: 2px; }

/* Custom Bar Chart Rows */
.charts-wrapper {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.chart-block {
    animation: fadeIn 0.3s ease-in-out;
}

.chart-title {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: space-between;
}

.chart-title .diff {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
}

.bar-row {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    gap: 1rem;
}

.bar-label {
    width: 60px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--clr-text-muted);
}

.bar-track {
    flex-grow: 1;
    background: var(--clr-bg-panel);
    height: 16px;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
    position: absolute;
    left: 0;
    top: 0;
}

.bar-value {
    width: 90px;
    text-align: right;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--clr-text);
    color: var(--clr-bg);
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
    z-index: 100;
}