/* OFDM Channel Estimation Visualization - Styling */

.channelest-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: #000000;
    padding: 20px;
    font-family: 'Courier New', monospace;
    color: #ccc;
}

.controls-row {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.control-group label {
    color: #ccc;
    font-family: 'Courier New', monospace;
    white-space: nowrap;
}

.control-group input[type="range"] {
    width: 150px;
    height: 5px;
    background: #333;
    outline: none;
    -webkit-appearance: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 15px;
    height: 15px;
    background: #0ff;
    cursor: pointer;
    border-radius: 50%;
}

.control-group input[type="range"]::-moz-range-thumb {
    width: 15px;
    height: 15px;
    background: #0ff;
    cursor: pointer;
    border-radius: 50%;
    border: none;
}

.control-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #0ff;
}

.control-group span {
    color: #0ff;
    font-family: 'Courier New', monospace;
    min-width: 50px;
    text-align: right;
}

.control-group select {
    padding: 5px 10px;
    background-color: #222;
    color: #0ff;
    border: 1px solid #555;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    cursor: pointer;
    outline: none;
}

.control-group select:hover {
    border-color: #0ff;
}

.control-group select:focus {
    border-color: #0ff;
    background-color: #111;
}

.grids-rows {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin: 20px 0;
}

.grids-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.grid-column {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.grid-label {
    color: #fff;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 10px;
    text-align: center;
}

.grid-column canvas {
    border: 2px solid #555;
    background-color: #000;
    cursor: crosshair;
}

.arrow {
    color: #0ff;
    font-size: 24px;
    font-weight: bold;
    font-family: 'Courier New', monospace;
}

.legend {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 20px 0;
    padding: 10px;
    border-top: 1px solid #444;
    border-bottom: 1px solid #444;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: #ccc;
}

.legend-circle {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid;
}

.legend-circle.pilot {
    background-color: #ffaa00;
    border-color: #ffaa00;
}

.legend-circle.data {
    background-color: #ccc;
    border-color: #ccc;
}

.info-panel {
    margin-top: 20px;
    padding: 15px;
    background-color: #111;
    border: 1px solid #333;
    border-radius: 5px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: #aaa;
    line-height: 1.6;
}

.info-panel div {
    margin: 5px 0;
}