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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    padding: 0;
    margin: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h1, h2 {
    margin-bottom: 20px;
    color: #2c3e50;
}

/* Header */
header {
    background-color: #3498db;
    color: #fff;
    padding: 20px;
    margin-bottom: 20px;
    text-align: center;
    border-radius: 5px;
}

/* Connection Panel */
.connection-panel {
    background-color: #fff;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.form-group label {
    width: 120px;
    margin-right: 10px;
}

.connection-status {
    margin-top: 15px;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 5px;
}

.status-connected {
    color: #28a745;
    font-weight: bold;
}

.status-disconnected {
    color: #dc3545;
    font-weight: bold;
}

/* Control Panels */
.control-panel, .input-panel {
    background-color: #fff;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.output-grid, .input-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

@media (max-width: 992px) {
    .output-grid, .input-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .output-grid, .input-grid {
        grid-template-columns: 1fr;
    }
}

.channel, .input-channel {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
    border: 1px solid #e9ecef;
}

.channel-label {
    display: block;
    font-weight: bold;
    margin-bottom: 10px;
}

.channel-controls {
    display: flex;
    gap: 5px;
    margin-bottom: 10px;
}

.channel-status, .input-status {
    text-align: center;
    padding: 5px;
    border-radius: 3px;
    font-weight: bold;
}

.global-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.input-controls {
    margin-top: 20px;
}

.auto-refresh {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

#refreshInterval {
    width: 80px;
}

/* Device Configuration Panel */
.device-config-panel {
    background-color: #fff;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.config-section {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e9ecef;
}

.config-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.config-section h3 {
    margin-bottom: 15px;
    color: #3498db;
    font-size: 1.1rem;
}

.config-btn {
    background-color: #17a2b8;
    color: white;
    margin-right: 10px;
}

.config-btn:hover {
    background-color: #138496;
}

#currentDeviceAddress, #softwareVersion {
    display: inline-block;
    padding: 5px 10px;
    background-color: #f8f9fa;
    border-radius: 3px;
    font-weight: bold;
    min-width: 80px;
    text-align: center;
}

.config-warning {
    margin-top: 15px;
    padding: 10px;
    background-color: #fff3cd;
    border-left: 4px solid #ffc107;
    border-radius: 3px;
}

/* Command Log */
.command-log {
    background-color: #fff;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.log-container {
    background-color: #f8f9fa;
    padding: 15px;
    height: 200px;
    overflow-y: auto;
    border: 1px solid #e9ecef;
    border-radius: 5px;
    margin-bottom: 15px;
    font-family: monospace;
}

.log-entry {
    margin-bottom: 5px;
    padding: 5px;
    border-bottom: 1px solid #e9ecef;
}

.log-sent {
    color: #17a2b8;
}

.log-received {
    color: #28a745;
}

.log-error {
    color: #dc3545;
}

/* Buttons */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s;
}

#connectBtn {
    background-color: #28a745;
    color: white;
}

#connectBtn:hover {
    background-color: #218838;
}

#disconnectBtn {
    background-color: #dc3545;
    color: white;
}

#disconnectBtn:hover {
    background-color: #c82333;
}

.channel-on {
    background-color: #28a745;
    color: white;
}

.channel-on:hover {
    background-color: #218838;
}

.channel-off {
    background-color: #dc3545;
    color: white;
}

.channel-off:hover {
    background-color: #c82333;
}

.channel-toggle {
    background-color: #17a2b8;
    color: white;
}

.channel-toggle:hover {
    background-color: #138496;
}

#allOn, #allOff, #allToggle, #readInputs, #clearLog {
    background-color: #6c757d;
    color: white;
    margin-right: 5px;
}

#allOn:hover, #allOff:hover, #allToggle:hover, #readInputs:hover, #clearLog:hover {
    background-color: #5a6268;
}

button:disabled {
    background-color: #e9ecef !important;
    color: #adb5bd !important;
    cursor: not-allowed;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    background-color: #2c3e50;
    color: #ecf0f1;
}

footer a {
    color: #3498db;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}