:root {
    --sidebar-bg: #2c3e50;
    --accent-color: #3498db;
    --text-light: #ecf0f1;
    --bg-gray: #f4f7f6;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    display: flex;
    background-color: var(--bg-gray);
}

/* Sidebar */
.sidebar {
    width: 300px;
    height: 100vh;
    background: var(--sidebar-bg);
    color: var(--text-light);
    position: fixed;
    padding: 20px;
    box-sizing: border-box;
}

.sidebar h2 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    border-bottom: 1px solid #555;
    padding-bottom: 10px;
}

.search-box {
    width: 100%;
    padding: 12px;
    border-radius: 5px;
    border: none;
    margin-bottom: 20px;
    font-size: 1rem;
}

/* Main Content */
.main-content {
    margin-left: 300px;
    width: calc(100% - 300px);
    padding: 40px;
    box-sizing: border-box;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th {
    background: #f8f9fa;
    text-align: left;
    padding: 12px;
    border-bottom: 2px solid #dee2e6;
}

td {
    padding: 12px;
    border-bottom: 1px solid #eee;
    font-size: 0.9rem;
}

tr:hover {
    background-color: #f1f1f1;
}

.status-badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    background: #e1f5fe;
    color: #01579b;
}