Improve the following CSS for appearance and aesthetic. 
"body {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    background: #2C3E50; /* Dark blue-grey background */
    color: #ECF0F1;      /* Light off-white text color */
    overflow: hidden;    /* Hide any overflowing content */
}

.container {
    display: flex;
    height: 100vh; /* Full viewport height */
}

.map-section {
    flex: 1; /* Takes up available space */
    display: flex;
    flex-direction: column;
    padding: 10px;
    min-width: 0; /* Allows content to shrink */
}

.map-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding: 10px;
    background: #34495E; /* Slightly lighter dark blue-grey */
    border-radius: 5px;
    flex-shrink: 0; /* Prevents shrinking */
}

.map-title {
    font-size: 18px;
    font-weight: bold;
}

.map-dimensions {
    font-size: 14px;
    color: #BDC3C7; /* Muted text color for dimensions */
}

.canvas-container {
    position: relative;
    flex: 1; /* Takes up available space */
    border: 2px solid #34495E;
    border-radius: 5px;
    overflow: hidden;
    min-height: 0; /* Allows content to shrink */
}

#mapCanvas {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.drawing-bar {
    flex: 0 0 300px; /* Fixed width sidebar */
    background: #34495E;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px; /* Space between sections */
    overflow-y: auto; /* Scroll for too much content */
}

.section {
    background: #2C3E50;
    border-radius: 8px;
    padding: 15px;
}

.section-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #3498DB; /* Blue accent color */
}

.cell-picker, .dimension-controls, .action-buttons, .texture-controls, .brush-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cell-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s; /* Smooth hover effect */
}

.cell-option:hover {
    background: #34495E;
}

.cell-option.selected {
    background: #3498DB; /* Highlight for selected option */
}

.cell-color {
    width: 30px;
    height: 30px;
    border-radius: 3px;
    border: 2px solid #ECF0F1; /* Border to show color clearly */
}

.dimension-input, .brush-input {
    display: flex;
    align-items: center;
    gap: 10px;
}

.dimension-input label, .brush-input label {
    min-width: 60px; /* Align labels */
}

.dimension-input input, .brush-input input, .texture-select {
    flex: 1; /* Takes available space */
    padding: 8px;
    border: none;
    border-radius: 3px;
    background: #34495E;
    color: #ECF0F1;
}

.texture-control-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.texture-control-group label {
    font-size: 13px;
    color: #BDC3C7;
}

#playerDirectionControls {
    margin-top: 10px;
    display: none; /* Hidden by default, only shown when Player is selected */
    flex-direction: column;
    gap: 5px;
    background: #23313d; /* Slightly darker background */
    padding: 10px;
    border-radius: 5px;
}

#playerDirectionControls button {
    padding: 8px;
    border: none;
    border-radius: 3px;
    background: #5A9966; /* Green button color */
    color: white;
    cursor: pointer;
    transition: background-color 0.3s;
}
#playerDirectionControls button:hover {
    background: #477b53;
}
#playerDirectionControls button.selected {
    background: #3498DB; /* Highlight selected direction button */
}

.btn {
    padding: 12px;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: #3498DB; /* Primary blue button */
    color: white;
}

.btn-primary:hover {
    background: #2980B9;
}

.btn-secondary {
    background: #95A5A6; /* Secondary grey button */
    color: white;
}

.btn-secondary:hover {
    background: #7F8C8D;
}

.btn-success {
    background: #27AE60; /* Success green button */
    color: white;
}

.btn-success:hover {
    background: #229954;
}

.file-input {
    display: none; /* Hidden file input */
}

.playtest-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #000; /* Black background for playtest */
    z-index: 1000; /* Ensure it's on top */
    display: none; /* Hidden until playtest starts */
}

.playtest-controls {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 1001; /* Above the overlay */
    display: flex;
    gap: 10px;
}

.playtest-info {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 1001;
    background: rgba(0,0,0,0.7); /* Semi-transparent background */
    padding: 10px;
    border-radius: 5px;
    font-size: 12px;
}"