:root {
    --bg-color: #0f172a;
    --panel-bg: #1e293b;
    --text-color: #f8fafc;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --secondary-color: #475569;
    --secondary-hover: #334155;
    --canvas-bg: #000000;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 100%;
    max-width: 1000px;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #3b82f6, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 5px;
}

header p {
    color: #94a3b8;
}

.main-content {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.canvas-container {
    background-color: var(--panel-bg);
    padding: 10px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    flex-shrink: 0;
}

canvas {
    background-color: var(--canvas-bg);
    border-radius: 8px;
    display: block;
}

.sidebar {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.panel {
    background-color: var(--panel-bg);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.panel h2 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #cbd5e1;
    border-bottom: 1px solid #334155;
    padding-bottom: 10px;
}

.btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 10px;
}

.btn.primary {
    background-color: var(--accent-color);
    color: white;
}

.btn.primary:hover {
    background-color: var(--accent-hover);
}

.btn.secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn.secondary:hover {
    background-color: var(--secondary-hover);
}

.slider-group {
    margin-top: 15px;
}

.slider-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: #cbd5e1;
}

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

.stat-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 1rem;
}

.stat-row .label {
    color: #94a3b8;
}

.stat-row .value {
    font-weight: 700;
    color: #f8fafc;
}

.input-group {
    margin-bottom: 12px;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 0.9rem;
    color: #cbd5e1;
}

.input-group input[type="number"] {
    width: 100%;
    padding: 8px;
    border-radius: 4px;
    border: 1px solid #334155;
    background-color: #0f172a;
    color: white;
}

.btn.danger {
    background-color: #ef4444;
    color: white;
}

.btn.danger:hover {
    background-color: #dc2626;
}