:root {
    --primary: #0D6A5E;
    --light: #f5f5f5;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    color: #333;
}

.admin-container {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 250px;
    background: var(--primary);
    color: white;
    padding: 20px;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header h2 {
    font-size: 20px;
    margin-bottom: 30px;
}

.admin-nav ul {
    list-style: none;
}

.admin-nav a {
    display: block;
    padding: 12px 15px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s;
    margin-bottom: 8px;
}

.admin-nav a:hover,
.admin-nav a.active {
    background: rgba(255,255,255,0.2);
    color: white;
}

.logout-btn {
    background: rgba(255,0,0,0.2) !important;
    margin-top: 20px !important;
}

.admin-main {
    margin-left: 250px;
    flex: 1;
}

.admin-header {
    background: white;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.admin-content {
    padding: 30px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.stat-card h3 {
    font-size: 24px;
    color: var(--primary);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.admin-table th {
    background: var(--light);
    padding: 15px;
    text-align: left;
    font-weight: 600;
}

.admin-table td {
    padding: 15px;
    border-bottom: 1px solid #ddd;
}

.btn-small {
    padding: 8px 15px;
    background: var(--primary);
    color: white;
    border-radius: 4px;
    text-decoration: none;
    font-size: 12px;
    font-weight: 600;
}

@media (max-width: 768px) {
    .admin-sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }

    .admin-main {
        margin-left: 0;
    }
}