@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #f5f6f8;
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 240px;
    background: #2c2c2c;
    color: #fff;
    display: flex;
    flex-direction: column;
    padding: 20px;
}

.sidebar-header {
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.logo {
    font-size: 24px;
    font-weight: 600;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    color: #bbb;
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 5px;
    transition: all 0.2s;
}

.nav-item:hover, .nav-item.active {
    background: rgba(255,255,255,0.1);
    color: #fff;
}

.nav-icon {
    margin-right: 12px;
    font-size: 18px;
}

.sidebar-footer {
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.btn-post {
    display: block;
    width: 100%;
    text-align: center;
    background: #4a90d9;
    color: #fff;
    padding: 12px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
}

.main-content {
    flex: 1;
    padding: 30px;
}

.main-header h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 25px;
}

.categories-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.category-card {
    display: flex;
    align-items: center;
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: box-shadow 0.2s;
}

.category-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.cat-icon {
    font-size: 32px;
    margin-right: 15px;
}

.category-card h3 {
    font-size: 16px;
    margin-bottom: 4px;
    color: #333;
}

.cat-count {
    font-size: 12px;
    color: #888;
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        flex-direction: row;
        padding: 10px;
    }
    .sidebar-header, .sidebar-footer {
        display: none;
    }
    .sidebar-nav {
        display: flex;
        padding: 0;
    }
    .nav-item {
        padding: 10px;
        margin: 0 5px;
    }
    .main-content {
        padding: 15px;
    }
}