:root {
    --admin-primary: #1a1a1a;
    --admin-secondary: #ff8c00;
    --admin-light: #ffffff;
    --admin-grey: #f5f5f5;
    --admin-dark-grey: #333333;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    background-color: var(--admin-grey);
}

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

/* Sidebar Styles */
.admin-sidebar {
    width: 250px;
    background-color: var(--admin-primary);
    color: var(--admin-light);
    padding: 20px 0;
    position: fixed;
    height: 100vh;
}

.admin-logo {
    padding: 20px;
    text-align: center;
}

.admin-logo img {
    max-width: 150px;
    height: auto;
}

.admin-nav {
    list-style: none;
    padding: 0;
    margin: 30px 0;
}

.admin-nav a {
    display: flex;
    align-items: center;
    padding: 15px 25px;
    color: var(--admin-light);
    text-decoration: none;
    transition: all 0.3s ease;
}

.admin-nav a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

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

.admin-nav ul li a.active {
    background-color: #007bff;
    color: white;
}

.admin-nav .role {
    font-size: 0.8em;
    color: #666;
    display: block;
    margin-top: 5px;
}

.logout {
    margin-top: auto;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Main Content Area */
.admin-main {
    flex: 1;
    margin-left: 250px;
    padding: 20px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: var(--admin-light);
    border-radius: 8px;
    margin-bottom: 20px;
}

.admin-profile {
    display: flex;
    align-items: center;
    gap: 10px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

.stat-card {
    background-color: var(--admin-light);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

/* Příklad stylů pro sidebar, které by měly být v admin.css */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 250px;
    z-index: 1000;
    background-color: #343a40;
    transition: width 0.3s ease;
}

.sidebar-closed .sidebar {
    width: 70px;
}

/* Oprava admin panelu pro mobilní zařízení */
@media screen and (max-width: 768px) {
    .admin-panel {
        padding: 15px;
        margin-top: 40px; /* Prostor pro hamburger menu */
    }
    
    .admin-panel-header {
        flex-direction: column;
    }
    
    .admin-panel-header h2 {
        margin-bottom: 15px;
    }
    
    .admin-panel-actions {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .admin-panel-content {
        padding: 15px;
        overflow-x: auto;
    }
    
    table {
        min-width: 100%;
    }
    
    th, td {
        padding: 10px 8px;
        font-size: 14px;
    }
    
    .form-container {
        padding: 15px;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions button {
        width: 100%;
        margin: 5px 0;
    }
}