:root {
    --bg-color: #0d1117;
    --panel-bg: rgba(13, 17, 23, 0.9);
    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
    --accent-green: #00ff99;
    --accent-blue: #4a9eff;
    --border-color: #30363d;
}

body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: var(--bg-color);
    font-family: 'Courier New', Courier, monospace;
}

#visCanvas {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
}

.ui-layer {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 300px;
    pointer-events: auto;
    background: var(--panel-bg);
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    z-index: 10;
    backdrop-filter: blur(5px);
}

h1 {
    margin: 0 0 15px 0;
    font-size: 16px;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 12px;
    color: var(--text-secondary);
}

.stat-val {
    color: var(--text-primary);
    font-weight: bold;
}

.control-group {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

label {
    font-size: 11px;
    color: var(--accent-blue);
    display: block;
    margin-bottom: 5px;
    text-transform: uppercase;
}

select {
    width: 100%;
    background-color: #161b22;
    color: var(--accent-green);
    border: 1px solid var(--border-color);
    padding: 5px;
    font-family: inherit;
    font-size: 12px;
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

/* GRAPH STYLES */
.graph-container {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.graph-wrapper {
    position: relative;
    height: 100px;
    border-left: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-left: 25px; 
    margin-bottom: 15px; 
}

#graphCanvas {
    display: block;
    width: 100%;
    height: 100%;
}

.axis-label {
    position: absolute;
    font-size: 10px;
    color: var(--text-secondary);
}
.x-label-start { bottom: -15px; left: 0; }
.x-label-end { bottom: -15px; right: 0; }
.y-label { left: -30px; text-align: right; width: 25px;}
.y-top { top: -5px; }
.y-mid { top: 45%; }
.y-bot { bottom: -5px; }

.throughput-counter {
    text-align: center;
    font-size: 14px;
    color: var(--accent-green);
    font-weight: bold;
}