diff --git a/R/att_from_rscripts.R b/R/att_from_rscripts.R
index ce36c4c..c94ec69 100644
--- a/R/att_from_rscripts.R
+++ b/R/att_from_rscripts.R
@@ -22,7 +22,11 @@ att_from_rscript <- function(path) {
   # Replace newlines `\n` by space
   file <- gsub("\\\\n", " ", file)
 
-  pkg_points <- file %>%
+  # Ignore `::` patterns found in string literals (e.g. CSS selectors)
+  # Match both double-quoted and single-quoted strings, including escaped quotes
+  file_no_strings <- gsub("\"(?:[^\"\\\\]|\\\\.)*\"|'(?:[^'\\\\]|\\\\.)*'", "", file)
+
+  pkg_points <- file_no_strings %>%
     .[grep("^#", ., invert = TRUE)] %>%
     str_extract_all("[[:alnum:]\\.]+(?=::)") %>%
     unlist()
@@ -77,6 +81,8 @@ att_from_rscripts <- function(path = "R", pattern = "*.[.](r|R)$", recursive = T
     all_f <- setdiff(all_f, exclude_files)
   }
 
+  # `att_from_rscript()` parses R code, so keep only R scripts
+  all_f <- all_f[grepl("\\.[rR]$", all_f)]
 
   lapply(all_f, att_from_rscript) %>%
     unlist() %>%
diff --git a/tests/testthat/test-rscript.R b/tests/testthat/test-rscript.R
index d8a279f..395245d 100644
--- a/tests/testthat/test-rscript.R
+++ b/tests/testthat/test-rscript.R
@@ -92,3 +92,44 @@ test_that("folder_to_exclude works in att_from_rscripts", {
 
 
 })
+
+test_that("att_from_rscript ignores :: found in CSS strings", {
+  css_script <- tempfile(fileext = ".R")
+  on.exit(unlink(css_script), add = TRUE)
+  writeLines(
+    c(
+      "x <- '.pretty .state label::after { color: red; }'",
+      "glue::glue('ok')"
+    ),
+    con = css_script
+  )
+
+  res <- att_from_rscript(path = css_script)
+
+  expect_true("glue" %in% res)
+  expect_false("label" %in% res)
+})
+
+test_that("att_from_rscripts ignores css files in scanned directories", {
+  dir_with_files <- tempfile(pattern = "rscripts_css")
+  dir.create(dir_with_files)
+  on.exit(unlink(dir_with_files, recursive = TRUE), add = TRUE)
+
+  writeLines(
+    c(
+      ".pretty .state label::before {",
+      "  color: red;",
+      "}"
+    ),
+    con = file.path(dir_with_files, "global.css")
+  )
+  writeLines(
+    "glue::glue('ok')",
+    con = file.path(dir_with_files, "ok.R")
+  )
+
+  res <- att_from_rscripts(path = dir_with_files)
+
+  expect_true("glue" %in% res)
+  expect_false("label" %in% res)
+})