:root {
    --primary-color: #3498db;
    --success-color: #2ecc71;
    --warning-color: #f1c40f;
    --danger-color: #e74c3c;
    --dark-bg: #2c3e50;
    --light-bg: #ecf0f1;
    --text-color: #333;
    --sidebar-width: 250px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    height: 100vh;
    background-color: var(--light-bg);
    color: var(--text-color);
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--dark-bg);
    color: white;
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.sidebar h2 {
    margin-bottom: 30px;
    font-size: 1.5rem;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.sidebar nav a {
    color: #bdc3c7;
    text-decoration: none;
    padding: 15px;
    margin-bottom: 5px;
    border-radius: 5px;
    transition: all 0.3s;
    display: block;
}

.sidebar nav a:hover,
.sidebar nav a.active {
    background-color: var(--primary-color);
    color: white;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 40px;
    overflow-y: auto;
}

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

h1 {
    margin-bottom: 20px;
    color: var(--dark-bg);
}

.card {
    background: white;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #2980b9;
}

.btn-success {
    background-color: var(--success-color);
}

.btn-success:hover {
    background-color: #27ae60;
}

textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: monospace;
    margin-bottom: 20px;
    resize: vertical;
}

/* Utility Classes */
.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.hidden {
    display: none;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.status-card {
    border-left: 5px solid #ccc;
}

.status-green {
    border-left-color: var(--success-color);
}

.status-yellow {
    border-left-color: var(--warning-color);
}

.status-red {
    border-left-color: var(--danger-color);
}

.badge {
    padding: 5px 10px;
    border-radius: 15px;
    color: white;
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
}

.bg-green {
    background-color: var(--success-color);
}

.bg-yellow {
    background-color: var(--warning-color);
}

.bg-red {
    background-color: var(--danger-color);
}

/* Form Elements */
.form-control {
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
}

.form-label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
}

/* Preformatted Text */
.pre-output {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
    border: 1px solid #e9ecef;
    white-space: pre-wrap;
    margin-top: 20px;
    font-family: monospace;
}

/* Table Styles */
.data-table-container {
    overflow-x: auto;
    margin-top: 20px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th,
.data-table td {
    border: 1px solid #ddd;
    padding: 8px;
}

.data-table th {
    background-color: #f2f2f2;
    font-weight: bold;
}

/* Tab Navigation Logic */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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