/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: #f4f7f6;
    color: #333;
}

/* Dashboard Layout (Flexbox) */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 250px;
    background-color: #1a252f;
    color: white;
    padding: 20px;
}

.sidebar h2 {
    margin-bottom: 30px;
    font-size: 1.5rem;
    letter-spacing: 1px;
}

.sidebar ul {
    list-style: none;
}

.sidebar li {
    padding: 12px 15px;
    margin-bottom: 5px;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.3s;
}

.sidebar li:hover, .sidebar li.active {
    background-color: #2c3e50;
}

/* Main Content Styling */
.main-content {
    flex: 1; /* Takes up the remaining space */
    padding: 40px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.primary-btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
}

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

/* Data Table Styling */
.data-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f8f9fa;
    color: #555;
    font-weight: 600;
}

/* SPA Navigation Classes */
.hidden {
    display: none !important;
}

/* Form Styling */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #444;
}

.form-group input, .form-group select {
    width: 100%;
    max-width: 400px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 5px rgba(52, 152, 219, 0.3);
}

/* Analytics Chart Styling */
.chart-card {
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 350px; /* Keeps the chart a manageable size */
}