:root {
    --bg-color: #f5f5f5;
    --text-color: #333;
    --primary-color: #4a6cf7;
    --secondary-color: #e9ecef;
    --accent-color: #ff6b6b;
    --card-bg: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #f5f5f5;
    --primary-color: #6d8eff;
    --secondary-color: #2d2d2d;
    --accent-color: #ff8585;
    --card-bg: #2d2d2d;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s, color 0.3s;
}

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

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

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--secondary-color);
    margin-bottom: 30px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.construction-banner {
    background-color: var(--secondary-color);
    border: 2px dashed var(--accent-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.construction-banner .robot {
    font-size: 48px;
    animation: float 3s ease-in-out infinite;
}

.construction-banner .message h3 {
    color: var(--accent-color);
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.construction-banner .message p {
    font-style: italic;
    line-height: 1.4;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.card h2 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.signin-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

label {
    font-weight: 500;
}

input {
    padding: 10px;
    border: 1px solid var(--secondary-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
}

button {
    padding: 10px 15px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--accent-color);
}

.status-message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 4px;
    display: none;
}

.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.monitoring {
    height: 300px;
    overflow-y: auto;
    font-family: monospace;
    background-color: var(--secondary-color);
    padding: 10px;
    border-radius: 4px;
}

.connect-btn {
    margin-bottom: 10px;
}