:root {
    --bg-color: #050505;
    --panel-bg: rgba(20, 20, 25, 0.7);
    --accent-color: #00f3ff;
    --text-color: #eeeeee;
    --text-muted: #aaaaaa;
    --border-color: rgba(255, 255, 255, 0.1);
    --glass-blur: 10px;
}

body {
    margin: 0;
    overflow: hidden;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
}

#canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; /* Let clicks pass through to canvas where no UI exists */
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 20px;
    box-sizing: border-box;
}

header {
    pointer-events: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    margin: 0;
    letter-spacing: 2px;
}

.highlight {
    color: var(--accent-color);
}

.status-indicator {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.dot {
    width: 8px;
    height: 8px;
    background-color: #00ff44;
    border-radius: 50%;
    box-shadow: 0 0 5px #00ff44;
}

.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    pointer-events: auto;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.controls-panel {
    position: absolute;
    left: 20px;
    top: 80px;
    width: 280px;
}

.results-panel {
    position: absolute;
    right: 20px;
    top: 80px;
    width: 250px;
}

h2 {
    font-size: 1rem;
    margin-top: 0;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.control-group {
    margin-bottom: 15px;
}

label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 5px;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--accent-color);
}

input[type="number"] {
    width: 100%;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px;
    border-radius: 4px;
    box-sizing: border-box;
}

.file-upload-btn {
    display: inline-block;
    width: 100%;
    padding: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px dashed var(--border-color);
    text-align: center;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s;
    box-sizing: border-box;
}

.file-upload-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
}

input[type="file"] {
    display: none;
}

.action-btn {
    width: 100%;
    padding: 10px;
    background: var(--accent-color);
    color: #000;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.2s;
}

.action-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.4);
}

.action-btn.secondary {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    margin-top: 10px;
}

.action-btn.secondary:hover {
    background: rgba(0, 243, 255, 0.1);
}

.metric {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 8px;
}

.metric .value {
    font-family: 'Orbitron', monospace;
    font-size: 1.2rem;
    color: #fff;
}

.metric .unit {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: 4px;
}

/* Comparison Overlay */
#comparison-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: auto;
    z-index: 100;
}

.hidden {
    display: none !important;
}

.comparison-content {
    width: 500px;
    max-width: 90%;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

th, td {
    text-align: left;
    padding: 10px;
    border-bottom: 1px solid var(--border-color);
}

th {
    color: var(--accent-color);
    font-size: 0.9rem;
}

.close-btn {
    background: transparent;
    border: 1px solid var(--text-muted);
    color: var(--text-muted);
    padding: 8px 16px;
    cursor: pointer;
    border-radius: 4px;
    float: right;
}

.close-btn:hover {
    border-color: #fff;
    color: #fff;
}