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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

h1 {
    color: #2563eb;
}

#auth-section {
    display: flex;
    gap: 10px;
}

input[type="password"],
input[type="date"],
select {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

button {
    padding: 10px 20px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

button:hover {
    background: #1d4ed8;
}

button.danger {
    background: #dc2626;
}

button.danger:hover {
    background: #b91c1c;
}

button.success {
    background: #16a34a;
}

button.success:hover {
    background: #15803d;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.stat-card h3 {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    color: #2563eb;
}

.chart-section,
.top-users-section,
.users-section {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.chart-section h2,
.top-users-section h2,
.users-section h2 {
    margin-bottom: 20px;
    color: #333;
}

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

th {
    background: #f3f4f6;
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #374151;
}

td {
    padding: 12px;
    border-bottom: 1px solid #e5e7eb;
}

tr:hover {
    background: #f9fafb;
}

.filters {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.badge.active {
    background: #dcfce7;
    color: #166534;
}

.badge.blocked {
    background: #fee2e2;
    color: #991b1b;
}

.badge.admin {
    background: #dbeafe;
    color: #1e40af;
}

.actions {
    display: flex;
    gap: 5px;
}

.actions button {
    padding: 6px 12px;
    font-size: 12px;
}