:root {
    --bg-color: #0b0f19;
    --line-color: #aaccff;
    --accent-color: #00ffcc;
    --warn-color: #ffaa00;
    --power-color: #ff3366;
    --text-font: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --panel-bg: rgba(15, 25, 40, 0.9);
}

body {
    margin: 0;
    background-color: var(--bg-color);
    color: var(--line-color);
    font-family: var(--text-font);
    overflow: hidden;
    display: flex;
    height: 100vh;
}

/* Sidebar */
#sidebar {
    width: 320px;
    flex-shrink: 0;
    background: var(--panel-bg);
    border-right: 1px solid rgba(0, 255, 204, 0.2);
    padding: 15px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    backdrop-filter: blur(15px);
    z-index: 10;
    box-shadow: 5px 0 25px rgba(0,0,0,0.8);
    font-size: 0.9rem;
}

/* Scrollbar */
#sidebar::-webkit-scrollbar { width: 6px; }
#sidebar::-webkit-scrollbar-track { background: rgba(0,0,0,0.2); }
#sidebar::-webkit-scrollbar-thumb { background: rgba(0,255,204,0.3); border-radius: 3px; }

#main-view {
    flex-grow: 1;
    position: relative;
    background: radial-gradient(circle at center, #111a2a 0%, #05080f 100%);
    cursor: crosshair;
    min-width: 0;
}

canvas { display: block; }

h1 {
    font-size: 1.4rem;
    color: #fff;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 8px;
    margin-top: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 10px rgba(0,255,204,0.5);
}

h2 {
    font-size: 0.85rem;
    margin-top: 20px;
    margin-bottom: 10px;
    text-transform: uppercase;
    color: #fff;
    background: linear-gradient(90deg, rgba(0,255,204,0.2) 0%, transparent 100%);
    padding: 6px 8px;
    border-left: 3px solid var(--accent-color);
    border-radius: 0 4px 4px 0;
}

hr {
    border: none;
    border-top: 1px dashed rgba(255,255,255,0.1);
    margin: 15px 0;
}

/* Controls */
.control-group {
    margin-bottom: 12px;
    background: rgba(0,0,0,0.3);
    padding: 10px;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: background 0.2s;
}
.control-group:hover {
    background: rgba(0,0,0,0.5);
}

.control-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    margin-bottom: 5px;
    color: #ddd;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

select {
    width: 100%;
    padding: 8px;
    background: rgba(0,0,0,0.5);
    color: var(--accent-color);
    border: 1px solid rgba(0,255,204,0.3);
    border-radius: 4px;
    outline: none;
    font-family: inherit;
    font-weight: bold;
    cursor: pointer;
}
select:focus { border-color: var(--accent-color); }

input[type="range"] {
    width: 100%;
    cursor: pointer;
    accent-color: var(--accent-color);
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    appearance: none;
    outline: none;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-color);
}

/* Monitor */
.monitor-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    background: rgba(0,0,0,0.6);
    padding: 12px;
    border-radius: 8px;
    border: 1px solid rgba(0,255,204,0.3);
    margin-bottom: 15px;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.8);
}
.monitor-item { display: flex; flex-direction: column; }
.monitor-label { font-size: 0.65rem; color: #888; text-transform: uppercase; }
.monitor-value { 
    font-size: 1.1rem; 
    font-weight: bold; 
    color: #fff; 
    font-family: 'Courier New', monospace; 
    text-shadow: 0 0 5px rgba(255,255,255,0.3);
}

/* Power & Energy Displays */
.power-display {
    border-top: 1px dashed rgba(255,255,255,0.1);
    padding-top: 8px;
    margin-top: 2px;
}
#val-power { color: var(--warn-color); text-shadow: 0 0 8px rgba(255,170,0,0.5); }

.energy-display {
    border-top: 1px dashed rgba(255,255,255,0.1);
    padding-top: 8px;
    margin-top: 2px;
}
#val-total { transition: color 0.3s; }

/* Buttons */
.btn-row { display: flex; gap: 8px; margin-top: 10px; }
button {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--accent-color);
    background: rgba(0, 255, 204, 0.1);
    color: var(--accent-color);
    font-weight: bold;
    cursor: pointer;
    border-radius: 4px;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    transition: all 0.2s;
    box-shadow: 0 0 10px rgba(0,255,204,0.1);
}
button:hover { 
    background: var(--accent-color); 
    color: #000; 
    box-shadow: 0 0 15px var(--accent-color);
}
button.stop { 
    border-color: #ff4444; 
    color: #ff4444; 
    background: rgba(255,0,0,0.1); 
    box-shadow: 0 0 10px rgba(255,0,0,0.1);
}
button.stop:hover { 
    background: #ff4444; 
    color: white; 
    box-shadow: 0 0 15px #ff4444;
}

#measurements {
    position: absolute;
    bottom: 20px;
    right: 20px;
    text-align: right;
    pointer-events: none;
    color: rgba(255,255,255,0.2);
    font-size: 0.75rem;
    font-family: monospace;
}

/* Modal Overlay */
.modal {
    display: none;
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
}
.modal-content {
    background-color: var(--panel-bg);
    margin: 10% auto;
    padding: 20px 30px;
    border: 1px solid var(--accent-color);
    width: 80%;
    max-width: 600px;
    border-radius: 8px;
    box-shadow: 0 0 30px rgba(0, 255, 204, 0.3);
    position: relative;
    color: #fff;
}
.close-btn {
    color: var(--accent-color);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}
.close-btn:hover {
    color: #fff;
}