:root {
    --bg-dark: #2d2d2d;
    --bg-panel: #f5f5f5;
    --bg-card: #ffffff;
    --text-dark: #333333;
    --text-light: #ffffff;
    --text-muted: #666666;
    --accent: #4a90e2;
    --accent-hover: #357abd;
    --success: #28a745;
    --success-hover: #218838;
    --warning: #ffc107;
    --error: #dc3545;
    --error-hover: #c82333;
    --border: #dee2e6;
    --radius: 6px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-dark);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px 20px;
    background: var(--bg-panel);
    border-radius: var(--radius);
    border-left: 4px solid var(--accent);
}

    header h1 {
        font-size: 20px;
        color: var(--accent);
        font-weight: bold;
    }

.header-controls {
    display: flex;
    gap: 12px;
    align-items: center;
}

.lang-select {
    background: white;
    color: var(--text-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 6px 12px;
    cursor: pointer;
    font-size: 13px;
}

.status-badge {
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    text-transform: uppercase;
}

    .status-badge.connected {
        background: rgba(40, 167, 69, 0.15);
        color: var(--success);
        border: 1px solid var(--success);
    }

    .status-badge.disconnected {
        background: rgba(220, 53, 69, 0.15);
        color: var(--error);
        border: 1px solid var(--error);
    }

    .status-badge.busy {
        background: rgba(255, 193, 7, 0.15);
        color: #856404;
        border: 1px solid var(--warning);
    }

/* Panels */
.panel {
    background: var(--bg-panel);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
    transition: all 0.2s;
}

    .panel:hover {
        box-shadow: var(--shadow);
    }

    .panel h2 {
        font-size: 16px;
        margin-bottom: 15px;
        padding-bottom: 8px;
        border-bottom: 2px solid var(--accent);
        color: var(--text-dark);
    }

/* Connection Info */
.auto-connect-status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: white;
    border-radius: var(--radius);
    margin-top: 10px;
    font-size: 13px;
}

.connect-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--error);
    animation: pulse 1.5s infinite;
}

    .connect-indicator.connected {
        background: var(--success);
        animation: none;
    }

    .connect-indicator.disconnected {
        background: var(--error);
        animation: pulse 1.5s infinite;
    }

.connection-info {
    margin-bottom: 10px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 12px;
    background: white;
    border-radius: 4px;
    margin-bottom: 4px;
}

    .info-row .label {
        color: var(--text-muted);
        font-size: 13px;
    }

    .info-row .value {
        font-weight: 600;
        color: var(--text-dark);
        font-size: 13px;
    }

/* Forms */
.form-group {
    margin-bottom: 14px;
}

    .form-group label {
        display: block;
        margin-bottom: 5px;
        color: var(--text-muted);
        font-size: 13px;
        font-weight: 500;
    }

.form-control {
    width: 100%;
    padding: 8px 12px;
    background: white;
    color: var(--text-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 13px;
    transition: border-color 0.2s;
}

    .form-control:focus {
        outline: none;
        border-color: var(--accent);
        box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.15);
    }

select.form-control {
    cursor: pointer;
}

.range-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-range {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: #ddd;
    border-radius: 3px;
    outline: none;
}

    .form-range::-webkit-slider-thumb {
        -webkit-appearance: none;
        appearance: none;
        width: 18px;
        height: 18px;
        background: var(--accent);
        border-radius: 50%;
        cursor: pointer;
        transition: all 0.2s;
    }

        .form-range::-webkit-slider-thumb:hover {
            background: var(--accent-hover);
            transform: scale(1.1);
        }

.range-value {
    min-width: 48px;
    text-align: right;
    font-weight: 600;
    color: var(--accent);
    font-size: 13px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
}

    .checkbox-label input[type="checkbox"] {
        width: 16px;
        height: 16px;
        cursor: pointer;
        accent-color: var(--accent);
    }

/* Flags Grid */
.flags-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-top: 8px;
}

    .flags-grid .checkbox-label {
        background: white;
        padding: 8px 10px;
        border-radius: 4px;
        transition: all 0.2s;
        border: 1px solid var(--border);
    }

        .flags-grid .checkbox-label:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow);
        }

.flags-value {
    margin-top: 10px;
    padding: 8px 12px;
    background: white;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.hex-value {
    font-family: 'Consolas', 'Courier New', monospace;
    font-weight: bold;
    color: var(--accent);
    font-size: 15px;
}

/* Buttons */
.button-group {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.btn {
    padding: 10px 18px;
    border: none;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #3498db);
    color: white;
}

    .btn-primary:hover:not(:disabled) {
        background: linear-gradient(135deg, var(--accent-hover), #2980b9);
        transform: translateY(-1px);
    }

.btn-secondary {
    background: white;
    color: var(--text-dark);
    border: 1px solid var(--border);
}

    .btn-secondary:hover:not(:disabled) {
        background: #e9ecef;
        border-color: var(--accent);
    }

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Log */
.log-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    cursor: pointer; 
    user-select: none; 
}

    .log-header:hover {
        opacity: 0.8; 
    }

    .log-header h2 {
        margin-bottom: 0;
        border-bottom: none;
        padding-bottom: 0;
    }

.log-toggle-icon {
    font-size: 0.8em; 
    margin-left: 10px;
}

.btn-small {
    padding: 5px 14px;
    font-size: 11px;
}

.log-container {
    background: #1a1a1a;
    border-radius: var(--radius);
    padding: 12px;
    max-height: 350px;
    overflow-y: auto;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 11px;
}

.log-entry {
    padding: 4px 8px;
    margin: 2px 0;
    border-radius: 3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 0;
}

    .log-entry.info {
        background: #3a3a3a;
        color: #d4d4d4;
    }

    .log-entry.warning {
        background: #665500;
        color: #ffd700;
    }

    .log-entry.error {
        background: #662222;
        color: #ff6b6b;
    }

    .log-entry.success {
        background: #1a3a1a;
        color: #4caf50;
    }

/* Анимация появления */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.log-entry:last-child {
    animation: fadeIn 0.3s ease-out;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 3px;
}

    ::-webkit-scrollbar-thumb:hover {
        background: var(--accent-hover);
    }

/* Анимация для индикатора */
@keyframes pulse {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }

    100% {
        opacity: 1;
    }
}

/* Footer */
.footer {
    margin-top: 20px;
    padding: 20px;
    background: var(--bg-panel);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-link {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s;
}

    .footer-link:hover {
        color: var(--accent);
    }

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    color: var(--text-muted);
    font-size: 12px;
}

.footer-copy {
    font-weight: 500;
}

.footer-desc {
    opacity: 0.7;
}


.validation-hint {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
    opacity: 0.7;
}

.form-control:invalid {
    border-color: var(--error);
    box-shadow: 0 0 0 2px rgba(220, 53, 69, 0.15);
}

    .form-control:invalid:focus {
        border-color: var(--error);
        box-shadow: 0 0 0 2px rgba(220, 53, 69, 0.25);
    }

/* Адаптивность */
@media (max-width: 600px) {
    .container {
        padding: 10px;
    }

    header {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .header-controls {
        flex-direction: column;
        gap: 8px;
    }

    .button-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .flags-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .log-entry {
        white-space: normal;
        word-break: break-all;
    }

    .footer-links {
        gap: 12px;
    }

    .footer-link {
        font-size: 12px;
    }
}