diff --git a/package-lock.json b/package-lock.json
index ceb8ab72f..b8d79a01d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,6 +24,7 @@
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@@ -5951,6 +6014,40 @@
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@@ -12691,9 +12788,10 @@
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@@ -17755,9 +17853,10 @@
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@@ -23823,6 +23922,28 @@
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+        "chalk": "^4.1.0",
+        "cli-cursor": "^3.1.0",
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       "version": "0.4.4",
       "resolved": "https://registry.npmjs.org/steno/-/steno-0.4.4.tgz",
@@ -31836,6 +31941,18 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/yoctocolors": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yoctocolors/-/yoctocolors-2.1.2.tgz",
+      "integrity": "sha512-CzhO+pFNo8ajLM2d2IW/R93ipy99LWjtwblvC1RsoSUMZgyLbYFr221TnSNT7GjGdYui6P459mw9JH/g/zW2ug==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/yoctocolors-cjs": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/yoctocolors-cjs/-/yoctocolors-cjs-2.1.2.tgz",
diff --git a/package.json b/package.json
index f70cc974b..a5fec600c 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,7 @@
     "lighthouse-logger": "2.0.1",
     "multi-progress-bars": "^5.0.3",
     "nx": "21.4.1",
+    "ora": "^9.0.0",
     "parse-lcov": "^1.0.4",
     "rimraf": "^6.0.1",
     "semver": "^7.6.3",
diff --git a/packages/plugin-lighthouse/src/lib/runner/details/__snapshots__/critical-request-chain.type.unit.test.ts.snap b/packages/plugin-lighthouse/src/lib/runner/details/__snapshots__/critical-request-chain.type.unit.test.ts.snap
index 8d6fa43ff..1639065c6 100644
--- a/packages/plugin-lighthouse/src/lib/runner/details/__snapshots__/critical-request-chain.type.unit.test.ts.snap
+++ b/packages/plugin-lighthouse/src/lib/runner/details/__snapshots__/critical-request-chain.type.unit.test.ts.snap
@@ -10,21 +10,21 @@ exports[`parseCriticalRequestChainToAuditDetails > should convert chains to basi
             {
               "name": "https://fonts.gstatic.com/s/googlesans/v62/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPjIUvbQoi-E.woff2",
               "values": {
-                "duration": "48.083 ms",
+                "duration": "48 ms",
                 "transferSize": "35.89 kB",
               },
             },
             {
               "name": "https://fonts.gstatic.com/s/robotomono/v23/L0xTDF4xlVMF-BfR8bXMIhJHg45mwgGEFl0_3vrtSM1J-gEPT5Ese6hmHSh0me8iUI0.woff2",
               "values": {
-                "duration": "63.943 ms",
+                "duration": "64 ms",
                 "transferSize": "22.31 kB",
               },
             },
           ],
           "name": "https://fonts.googleapis.com/css?family=Google+Sans:400,500|Roboto:400,400italic,500,500italic,700,700italic|Roboto+Mono:400,500,700&display=swap",
           "values": {
-            "duration": "50.656 ms",
+            "duration": "51 ms",
             "transferSize": "3.68 kB",
           },
         },
@@ -33,42 +33,42 @@ exports[`parseCriticalRequestChainToAuditDetails > should convert chains to basi
             {
               "name": "https://fonts.gstatic.com/s/materialicons/v143/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff2",
               "values": {
-                "duration": "86.765 ms",
+                "duration": "87 ms",
                 "transferSize": "125.78 kB",
               },
             },
           ],
           "name": "https://fonts.googleapis.com/css2?family=Material+Icons&family=Material+Symbols+Outlined&display=block",
           "values": {
-            "duration": "55.102 ms",
+            "duration": "55 ms",
             "transferSize": "615 B",
           },
         },
         {
           "name": "https://www.gstatic.com/devrel-devsite/prod/ve761bca974e16662f27aa8810df6d144acde5bdbeeca0dfd50e25f86621eaa19/chrome/css/app.css",
           "values": {
-            "duration": "70.050 ms",
+            "duration": "70 ms",
             "transferSize": "133.58 kB",
           },
         },
         {
           "name": "https://www.gstatic.com/devrel-devsite/prod/ve761bca974e16662f27aa8810df6d144acde5bdbeeca0dfd50e25f86621eaa19/chrome/css/dark-theme.css",
           "values": {
-            "duration": "69.755 ms",
+            "duration": "70 ms",
             "transferSize": "3.98 kB",
           },
         },
         {
           "name": "https://developer.chrome.com/extras.css",
           "values": {
-            "duration": "199.327 ms",
+            "duration": "199 ms",
             "transferSize": "109 B",
           },
         },
       ],
       "name": "https://developer.chrome.com/docs/lighthouse/performance/critical-request-chains",
       "values": {
-        "duration": "472.304 ms",
+        "duration": "472 ms",
         "transferSize": "18.66 kB",
       },
     },
@@ -98,7 +98,7 @@ exports[`parseCriticalRequestChainToAuditDetails > should convert longest chain
   ],
   "rows": [
     {
-      "duration": "757.072 ms",
+      "duration": "757 ms",
       "length": 3,
       "transferSize": "125.78 kB",
     },
diff --git a/packages/plugin-lighthouse/src/lib/runner/details/details.unit.test.ts b/packages/plugin-lighthouse/src/lib/runner/details/details.unit.test.ts
index 7e6bf1106..fecce3275 100644
--- a/packages/plugin-lighthouse/src/lib/runner/details/details.unit.test.ts
+++ b/packages/plugin-lighthouse/src/lib/runner/details/details.unit.test.ts
@@ -82,7 +82,7 @@ describe('toAuditDetails', () => {
         },
         {
           name: 'Zone:ZoneAwarePromise',
-          duration: 0.783,
+          duration: 1.783,
         },
       ],
     });
@@ -104,11 +104,11 @@ describe('toAuditDetails', () => {
         rows: [
           {
             name: 'Zone',
-            duration: '0.634 ms',
+            duration: '1 ms',
           },
           {
             name: 'Zone:ZoneAwarePromise',
-            duration: '0.783 ms',
+            duration: '2 ms',
           },
         ],
       },
@@ -360,7 +360,7 @@ describe('toAuditDetails', () => {
           root: {
             name: 'https://example.com/',
             values: {
-              duration: '508.498 ms',
+              duration: '508 ms',
               transferSize: '849 B',
             },
           },
@@ -375,7 +375,7 @@ describe('toAuditDetails', () => {
         ],
         rows: [
           {
-            duration: '508.498 ms',
+            duration: '508 ms',
             transferSize: '849 B',
             length: 1,
           },
diff --git a/packages/plugin-lighthouse/src/lib/runner/details/item-value.ts b/packages/plugin-lighthouse/src/lib/runner/details/item-value.ts
index 87de82abc..1e2890af4 100644
--- a/packages/plugin-lighthouse/src/lib/runner/details/item-value.ts
+++ b/packages/plugin-lighthouse/src/lib/runner/details/item-value.ts
@@ -5,6 +5,7 @@ import {
   formatBytes,
   formatDuration,
   html,
+  roundDecimals,
   truncateText,
   ui,
 } from '@code-pushup/utils';
@@ -72,17 +73,14 @@ export function formatTableItemPropertyValue(
       return html.link(url);
     case 'timespanMs':
     case 'ms':
-      return formatDuration(Number(parsedItemValue));
+      return formatDuration(Number(parsedItemValue), 3);
     case 'node':
       return parseNodeValue(itemValue as Details.NodeValue);
     case 'source-location':
       return truncateText(String(parsedItemValue), 200);
     case 'numeric':
       const num = Number(parsedItemValue);
-      if (num.toFixed(3).toString().endsWith('.000')) {
-        return String(num);
-      }
-      return String(num.toFixed(3));
+      return roundDecimals(num, 3).toString();
     case 'text':
       return truncateText(String(parsedItemValue), 500);
     case 'multi': // @TODO
diff --git a/packages/plugin-lighthouse/src/lib/runner/details/item-value.unit.test.ts b/packages/plugin-lighthouse/src/lib/runner/details/item-value.unit.test.ts
index 5c6a0617f..70fa705ce 100644
--- a/packages/plugin-lighthouse/src/lib/runner/details/item-value.unit.test.ts
+++ b/packages/plugin-lighthouse/src/lib/runner/details/item-value.unit.test.ts
@@ -260,13 +260,13 @@ describe('formatTableItemPropertyValue', () => {
         { type: 'numeric', value: 2142 },
         'timespanMs',
       ),
-    ).toBe('2.14 s');
+    ).toBe('2.142 s');
   });
 
   it('should format value based on itemValueFormat "ms"', () => {
     expect(
       formatTableItemPropertyValue({ type: 'numeric', value: 2142 }, 'ms'),
-    ).toBe('2.14 s');
+    ).toBe('2.142 s');
   });
 
   it('should format value based on itemValueFormat "node"', () => {
@@ -318,7 +318,7 @@ describe('formatTableItemPropertyValue', () => {
         { type: 'numeric', value: 42.1 } as Details.ItemValue,
         'numeric',
       ),
-    ).toBe('42.100');
+    ).toBe('42.1');
   });
 
   it('should format value based on itemValueFormat "numeric" as int if float has only 0 post comma', () => {
diff --git a/packages/utils/mocks/logger-demo.ts b/packages/utils/mocks/logger-demo.ts
new file mode 100644
index 000000000..ae45e7f4f
--- /dev/null
+++ b/packages/utils/mocks/logger-demo.ts
@@ -0,0 +1,91 @@
+import ansis from 'ansis';
+import { logger } from '../src/index.js';
+
+async function sleep(delay: number) {
+  return new Promise(resolve => {
+    setTimeout(resolve, delay);
+  });
+}
+
+logger.setVerbose(process.argv.includes('--verbose'));
+
+const errorStage = process.argv
+  .find(arg => arg.startsWith('--error='))
+  ?.split('=')[1];
+
+try {
+  logger.info(ansis.bold.blue('Code PushUp CLI v0.80.1'));
+  logger.newline();
+
+  await logger.task('Importing code-pushup.config.ts', async () => {
+    await sleep(500);
+
+    return 'Loaded configuration from code-pushup.config.ts';
+  });
+  logger.debug('2 plugins:');
+  logger.debug('• ESLint');
+  logger.debug('• Lighthouse');
+
+  await logger.group(
+    `Running plugin "ESLint" ${ansis.gray('[1/2]')}`,
+    async () => {
+      const bin = 'npx eslint . --format=json';
+      await logger.command(bin, async () => {
+        await sleep(3000);
+        if (errorStage === 'plugin') {
+          logger.info('Configuration file not found.');
+          throw new Error(`Command ${ansis.bold(bin)} exited with code 1`);
+        }
+        logger.debug('All files pass linting.');
+      });
+
+      logger.info('Found 0 lint problems');
+
+      logger.warn(
+        'Metadata not found for rule @angular-eslint/template/eqeqeq',
+      );
+
+      return 'Completed "ESLint" plugin execution';
+    },
+  );
+
+  await logger.group(
+    `Running plugin "Lighthouse" ${ansis.gray('[2/2]')}`,
+    async () => {
+      await logger.task(
+        `Executing ${ansis.bold('runLighthouse')} function`,
+        async () => {
+          await sleep(8000);
+          return `Executed ${ansis.bold('runLighthouse')} function`;
+        },
+      );
+
+      logger.debug('Lighthouse category scores:');
+      logger.debug('• Accessibility: 100');
+      logger.debug('• SEO: 84');
+
+      return 'Completed "Lighthouse" plugin execution';
+    },
+  );
+
+  logger.info(ansis.bold('Collected report'));
+  logger.newline();
+
+  await logger.task(ansis.bold('Uploading report to portal'), async () => {
+    logger.debug(
+      'Sent GraphQL mutation to https://api.code-pushup.example.com/graphql (organization: "example", project: "website")',
+    );
+    await sleep(2000);
+    if (errorStage === 'core') {
+      throw new Error('GraphQL error');
+    }
+    return ansis.bold('Uploaded report to portal');
+  });
+} catch (error) {
+  logger.newline();
+  console.error(error);
+  logger.newline();
+  logger.error(ansis.bold(`Code PushUp CLI failed (see error above)`));
+  // eslint-disable-next-line n/no-process-exit, unicorn/no-process-exit
+  process.exit(1);
+}
diff --git a/packages/utils/package.json b/packages/utils/package.json
index a3fc10d8a..ed7a0759d 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -37,7 +37,8 @@
     "multi-progress-bars": "^5.0.3",
     "semver": "^7.6.0",
     "simple-git": "^3.20.0",
-    "zod": "^4.0.5"
+    "zod": "^4.0.5",
+    "ora": "^9.0.0"
   },
   "files": [
     "src",
diff --git a/packages/utils/project.json b/packages/utils/project.json
index 2953464ca..bcef53a99 100644
--- a/packages/utils/project.json
+++ b/packages/utils/project.json
@@ -20,7 +20,29 @@
       }
     },
     "unit-test": {},
-    "int-test": {}
+    "int-test": {},
+    "demo-logger": {
+      "executor": "nx:run-commands",
+      "options": {
+        "command": "npx tsx --tsconfig=tsconfig.base.json packages/utils/mocks/logger-demo.ts"
+      },
+      "configurations": {
+        "ci": {
+          "env": {
+            "CI": "true"
+          }
+        },
+        "verbose": {
+          "args": ["--verbose"]
+        },
+        "error-core": {
+          "args": ["--error=core"]
+        },
+        "error-plugin": {
+          "args": ["--error=plugin"]
+        }
+      }
+    }
   },
   "tags": ["scope:shared", "type:util", "publishable"]
 }
diff --git a/packages/utils/src/index.ts b/packages/utils/src/index.ts
index c255cd2cc..e010cf7ac 100644
--- a/packages/utils/src/index.ts
+++ b/packages/utils/src/index.ts
@@ -10,6 +10,7 @@ export {
 } from './lib/case-conversions.js';
 export { filesCoverageToTree, type FileCoverage } from './lib/coverage-tree.js';
 export { createRunnerFiles } from './lib/create-runner-files.js';
+export { dateToUnixTimestamp } from './lib/dates.js';
 export { comparePairs, matchArrayItemsByKey, type Diff } from './lib/diff.js';
 export {
   coerceBooleanValue,
@@ -51,9 +52,12 @@ export { filterItemRefsBy } from './lib/filter.js';
 export {
   formatBytes,
   formatDuration,
+  indentLines,
   pluralize,
   pluralizeToken,
+  roundDecimals,
   slugify,
+  transformLines,
   truncateDescription,
   truncateIssueMessage,
   truncateText,
@@ -81,10 +85,15 @@ export {
 } from './lib/guards.js';
 export { interpolate } from './lib/interpolate.js';
 export { logMultipleResults } from './lib/log-results.js';
+export { Logger, logger } from './lib/logger.js';
 export { link, ui, type CliUi, type Column } from './lib/logging.js';
 export { mergeConfigs } from './lib/merge-configs.js';
 export { getProgressBar, type ProgressBar } from './lib/progress.js';
-export { asyncSequential, groupByStatus } from './lib/promises.js';
+export {
+  asyncSequential,
+  groupByStatus,
+  settlePromise,
+} from './lib/promises.js';
 export { generateRandomId } from './lib/random.js';
 export {
   CODE_PUSHUP_DOMAIN,
diff --git a/packages/utils/src/lib/dates.ts b/packages/utils/src/lib/dates.ts
new file mode 100644
index 000000000..b22e06d7f
--- /dev/null
+++ b/packages/utils/src/lib/dates.ts
@@ -0,0 +1,3 @@
+export function dateToUnixTimestamp(date: Date): number {
+  return Math.round(date.getTime() / 1000);
+}
diff --git a/packages/utils/src/lib/dates.unit.test.ts b/packages/utils/src/lib/dates.unit.test.ts
new file mode 100644
index 000000000..fd5d79136
--- /dev/null
+++ b/packages/utils/src/lib/dates.unit.test.ts
@@ -0,0 +1,9 @@
+import { dateToUnixTimestamp } from './dates.js';
+
+describe('dateToUnixTimestamp', () => {
+  it('should convert date to number of seconds since epoch', () => {
+    expect(dateToUnixTimestamp(new Date('1970-01-01T01:00:04.567Z'))).toBe(
+      3605, // 1 hour is 3600 seconds + 4.567 seconds is rounded up to 5 seconds
+    );
+  });
+});
diff --git a/packages/utils/src/lib/formatting.ts b/packages/utils/src/lib/formatting.ts
index 86bc91301..260da8bc1 100644
--- a/packages/utils/src/lib/formatting.ts
+++ b/packages/utils/src/lib/formatting.ts
@@ -4,6 +4,11 @@ import {
   MAX_TITLE_LENGTH,
 } from '@code-pushup/models';
 
+export function roundDecimals(value: number, maxDecimals: number) {
+  const multiplier = Math.pow(10, maxDecimals);
+  return Math.round(value * multiplier) / multiplier;
+}
+
 export function slugify(text: string): string {
   return text
     .trim()
@@ -40,20 +45,18 @@ export function formatBytes(bytes: number, decimals = 2) {
 
   const i = Math.floor(Math.log(positiveBytes) / Math.log(k));
 
-  return `${Number.parseFloat((positiveBytes / Math.pow(k, i)).toFixed(dm))} ${
-    sizes[i]
-  }`;
+  return `${roundDecimals(positiveBytes / Math.pow(k, i), dm)} ${sizes[i]}`;
 }
 
 export function pluralizeToken(token: string, times: number): string {
   return `${times} ${Math.abs(times) === 1 ? token : pluralize(token)}`;
 }
 
-export function formatDuration(duration: number, granularity = 0): string {
-  if (duration < 1000) {
-    return `${granularity ? duration.toFixed(granularity) : duration} ms`;
+export function formatDuration(ms: number, maxDecimals: number = 2): string {
+  if (ms < 1000) {
+    return `${Math.round(ms)} ms`;
   }
-  return `${(duration / 1000).toFixed(2)} s`;
+  return `${roundDecimals(ms / 1000, maxDecimals)} s`;
 }
 
 export function formatDate(date: Date): string {
@@ -117,3 +120,14 @@ export function truncateDescription(text: string): string {
 export function truncateIssueMessage(text: string): string {
   return truncateText(text, MAX_ISSUE_MESSAGE_LENGTH);
 }
+
+export function transformLines(
+  text: string,
+  fn: (line: string) => string,
+): string {
+  return text.split(/\r?\n/).map(fn).join('\n');
+}
+
+export function indentLines(text: string, identation: number): string {
+  return transformLines(text, line => `${' '.repeat(identation)}${line}`);
+}
diff --git a/packages/utils/src/lib/formatting.unit.test.ts b/packages/utils/src/lib/formatting.unit.test.ts
index db564b826..b4234279f 100644
--- a/packages/utils/src/lib/formatting.unit.test.ts
+++ b/packages/utils/src/lib/formatting.unit.test.ts
@@ -1,14 +1,46 @@
+import ansis from 'ansis';
 import { describe, expect, it } from 'vitest';
 import {
   formatBytes,
   formatDate,
   formatDuration,
+  indentLines,
   pluralize,
   pluralizeToken,
+  roundDecimals,
   slugify,
+  transformLines,
   truncateText,
 } from './formatting.js';
 
+describe('roundDecimals', () => {
+  it('should remove extra decimals', () => {
+    expect(roundDecimals(1.2345, 2)).toBe(1.23);
+  });
+
+  it('should round last decimal', () => {
+    expect(roundDecimals(123.456, 2)).toBe(123.46);
+  });
+
+  it('should return number to prevent unnecessary trailing 0s in decimals', () => {
+    const result = roundDecimals(42.500001, 3);
+    expect(result).toBeTypeOf('number');
+    expect(result.toString()).toBe('42.5');
+    expect(result.toString()).not.toBe('42.50');
+  });
+
+  it('should leave integers unchanged', () => {
+    const value = 42;
+    const result = roundDecimals(value, 3);
+    expect(result).toBe(value);
+    expect(result.toString()).toBe('42');
+  });
+
+  it('should round to integer if max decimals set to 0', () => {
+    expect(roundDecimals(100.5, 0)).toBe(101);
+  });
+});
+
 describe('slugify', () => {
   it.each([
     ['Largest Contentful Paint', 'largest-contentful-paint'],
@@ -76,16 +108,15 @@ describe('formatDuration', () => {
   it.each([
     [-1, '-1 ms'],
     [0, '0 ms'],
-    [1, '1 ms'],
-    [2, '2 ms'],
-    [1200, '1.20 s'],
-  ])('should log correctly formatted duration for %s', (ms, displayValue) => {
+    [23, '23 ms'],
+    [891, '891 ms'],
+    [499.85, '500 ms'],
+    [1200, '1.2 s'],
+    [56789, '56.79 s'],
+    [60_000, '60 s'],
+  ])('should format duration of %s milliseconds as %s', (ms, displayValue) => {
     expect(formatDuration(ms)).toBe(displayValue);
   });
-
-  it('should log formatted duration with 1 digit after the decimal point', () => {
-    expect(formatDuration(120.255_555, 1)).toBe('120.3 ms');
-  });
 });
 
 describe('formatDate', () => {
@@ -154,3 +185,48 @@ describe('truncateText', () => {
     );
   });
 });
+
+describe('transformLines', () => {
+  it('should apply custom transformation to each line', () => {
+    let count = 0;
+    expect(
+      transformLines(
+        `export function greet(name = 'World') {\n  console.log('Hello, ' + name + '!');\n}\n`,
+        line => `${ansis.gray(`${++count} | `)}${line}`,
+      ),
+    ).toBe(
+      `
+${ansis.gray('1 | ')}export function greet(name = 'World') {
+${ansis.gray('2 | ')}  console.log('Hello, ' + name + '!');
+${ansis.gray('3 | ')}}
+${ansis.gray('4 | ')}`.trimStart(),
+    );
+  });
+
+  it('should support CRLF line endings', () => {
+    expect(
+      transformLines(
+        'ESLint v9.16.0\r\n\r\nAll files pass linting.\r\n',
+        line => `> ${line}`,
+      ),
+    ).toBe(
+      `
+> ESLint v9.16.0
+> 
+> All files pass linting.
+> `.trimStart(),
+    );
+  });
+});
+
+describe('indentLines', () => {
+  it('should indent each line by given number of spaces', () => {
+    expect(indentLines('ESLint v9.16.0\n\nAll files pass linting.\n', 2)).toBe(
+      `
+  ESLint v9.16.0
+  
+  All files pass linting.
+  `.slice(1), // ignore first line break
+    );
+  });
+});
diff --git a/packages/utils/src/lib/logger.int.test.ts b/packages/utils/src/lib/logger.int.test.ts
new file mode 100644
index 000000000..e48020591
--- /dev/null
+++ b/packages/utils/src/lib/logger.int.test.ts
@@ -0,0 +1,850 @@
+import ansis from 'ansis';
+import cliSpinners from 'cli-spinners';
+import os from 'node:os';
+import process from 'node:process';
+import type { MockInstance } from 'vitest';
+import { Logger } from './logger.js';
+
+// customize ora options for test environment
+vi.mock('ora', async (): Promise<typeof import('ora')> => {
+  const exports = await vi.importActual<typeof import('ora')>('ora');
+  return {
+    ...exports,
+    default: options => {
+      const spinner = exports.default({
+        // skip cli-cursor package
+        hideCursor: false,
+        // skip is-interactive package
+        isEnabled: process.env['CI'] !== 'true',
+        // skip is-unicode-supported package
+        spinner: cliSpinners.dots,
+        // preserve other options
+        ...(typeof options === 'string' ? { text: options } : options),
+      });
+      // skip log-symbols package
+      vi.spyOn(spinner, 'succeed').mockImplementation(text =>
+        spinner.stopAndPersist({ text, symbol: ansis.green('✔') }),
+      );
+      vi.spyOn(spinner, 'fail').mockImplementation(text =>
+        spinner.stopAndPersist({ text, symbol: ansis.red('✖') }),
+      );
+      return spinner;
+    },
+  };
+});
+
+describe('Logger', () => {
+  let output = '';
+  let consoleLogSpy: MockInstance<unknown[], void>;
+  let processStderrSpy: MockInstance<[], typeof process.stderr>;
+  let performanceNowSpy: MockInstance<[], number>;
+  let mathRandomSpy: MockInstance<[], number>;
+
+  beforeAll(() => {
+    vi.useFakeTimers();
+
+    consoleLogSpy = vi.spyOn(console, 'log').mockImplementation(message => {
+      output += `${message}\n`;
+    });
+
+    // ora spinner uses process.stderr stream
+    const mockProcessStderr: Partial<typeof process.stderr> = {
+      write: message => {
+        output += message;
+        return true;
+      },
+      get isTTY() {
+        return process.env['CI'] !== 'true';
+      },
+      cursorTo: () => true,
+      moveCursor: () => true,
+      clearLine: () => {
+        const idx = output.lastIndexOf('\n');
+        output = idx >= 0 ? output.substring(0, idx + 1) : '';
+        return true;
+      },
+    };
+    processStderrSpy = vi
+      .spyOn(process, 'stderr', 'get')
+      .mockReturnValue(mockProcessStderr as typeof process.stderr);
+  });
+
+  beforeEach(() => {
+    output = '';
+    performanceNowSpy = vi.spyOn(performance, 'now');
+    mathRandomSpy = vi.spyOn(Math, 'random');
+
+    vi.stubEnv('CI', 'false');
+    vi.stubEnv('GITHUB_ACTIONS', 'false');
+    vi.stubEnv('GITLAB_CI', 'false');
+  });
+
+  afterAll(() => {
+    vi.useRealTimers();
+    consoleLogSpy.mockReset();
+    processStderrSpy.mockReset();
+    performanceNowSpy.mockReset();
+    mathRandomSpy.mockReset();
+  });
+
+  describe('basic usage', () => {
+    it('should colorize logs based on level', () => {
+      vi.stubEnv('CP_VERBOSE', 'true'); // to render debug log
+      const logger = new Logger();
+
+      logger.info('Code PushUp CLI');
+      logger.debug('v1.2.3');
+      logger.warn('Config file in CommonJS format');
+      logger.error('Failed to load config');
+
+      expect(output).toBe(
+        `
+Code PushUp CLI
+${ansis.gray('v1.2.3')}
+${ansis.yellow('Config file in CommonJS format')}
+${ansis.red('Failed to load config')}
+`.trimStart(),
+      );
+    });
+
+    it('should omit debug logs if not verbose', () => {
+      vi.stubEnv('CP_VERBOSE', 'false');
+
+      new Logger().debug('Found config file code-pushup.config.js');
+
+      expect(output).toBe('');
+    });
+
+    it('should set verbose flag and environment variable', () => {
+      vi.stubEnv('CP_VERBOSE', 'false');
+      const logger = new Logger();
+
+      logger.setVerbose(true);
+
+      expect(logger.isVerbose()).toBe(true);
+      expect(process.env['CP_VERBOSE']).toBe('true');
+      expect(new Logger().isVerbose()).toBe(true);
+    });
+  });
+
+  describe('groups', () => {
+    it('should group logs with symbols and print duration', async () => {
+      performanceNowSpy.mockReturnValueOnce(0).mockReturnValueOnce(1234); // group duration: 1.23 s
+      const logger = new Logger();
+
+      await logger.group('Running plugin "ESLint"', async () => {
+        logger.info('$ npx eslint . --format=json');
+        logger.warn('Skipping unknown rule "deprecation/deprecation"');
+        return 'ESLint reported 4 errors and 11 warnings';
+      });
+
+      expect(ansis.strip(output)).toBe(`
+❯ Running plugin "ESLint"
+│ $ npx eslint . --format=json
+│ Skipping unknown rule "deprecation/deprecation"
+└ ESLint reported 4 errors and 11 warnings (1.23 s)
+
+`);
+    });
+
+    it('should complete group logs when error is thrown', async () => {
+      const logger = new Logger();
+
+      await expect(
+        logger.group('Running plugin "ESLint"', async () => {
+          logger.info(
+            '$ npx eslint . --format=json --output-file=.code-pushup/eslint/results.json',
+          );
+          throw new Error(
+            "ENOENT: no such file or directory, open '.code-pushup/eslint/results.json'",
+          );
+        }),
+      ).rejects.toThrow(
+        "ENOENT: no such file or directory, open '.code-pushup/eslint/results.json'",
+      );
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('│')} $ npx eslint . --format=json --output-file=.code-pushup/eslint/results.json
+${ansis.cyan('└')} ${ansis.red("Error: ENOENT: no such file or directory, open '.code-pushup/eslint/results.json'")}
+
+`,
+      );
+    });
+
+    it('should alternate colors for log groups and preserve child log styles', async () => {
+      performanceNowSpy
+        .mockReturnValueOnce(0)
+        .mockReturnValueOnce(1234) // 1st group duration: 1.23 s
+        .mockReturnValueOnce(0)
+        .mockReturnValueOnce(12_000) // 2nd group duration: 12 s
+        .mockReturnValueOnce(0)
+        .mockReturnValueOnce(42); // 3rd group duration: 42 ms
+      const logger = new Logger();
+
+      await logger.group('Running plugin "ESLint"', async () => {
+        logger.info(`${ansis.blue('$')} npx eslint . --format=json`);
+        logger.warn('Skipping unknown rule "deprecation/deprecation"');
+        return 'ESLint reported 4 errors and 11 warnings';
+      });
+
+      await logger.group(
+        'Running plugin "Lighthouse"',
+        async () => 'Calculated Lighthouse scores for 4 categories',
+      );
+
+      await logger.group('Running plugin "Code coverage"', async () => {
+        logger.info(`${ansis.blue('$')} npx vitest --coverage.enabled`);
+        return `Total line coverage is ${ansis.bold('82%')}`;
+      });
+
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('│')} ${ansis.blue('$')} npx eslint . --format=json
+${ansis.cyan('│')} ${ansis.yellow('Skipping unknown rule "deprecation/deprecation"')}
+${ansis.cyan('└')} ${ansis.green('ESLint reported 4 errors and 11 warnings')} ${ansis.gray('(1.23 s)')}
+
+${ansis.bold.magenta('❯ Running plugin "Lighthouse"')}
+${ansis.magenta('└')} ${ansis.green('Calculated Lighthouse scores for 4 categories')} ${ansis.gray('(12 s)')}
+
+${ansis.bold.cyan('❯ Running plugin "Code coverage"')}
+${ansis.cyan('│')} ${ansis.blue('$')} npx vitest --coverage.enabled
+${ansis.cyan('└')} ${ansis.green(`Total line coverage is ${ansis.bold('82%')}`)} ${ansis.gray('(42 ms)')}
+
+`,
+      );
+    });
+
+    it('should use log group prefix in child loggers', async () => {
+      performanceNowSpy.mockReturnValueOnce(0).mockReturnValueOnce(1234); // group duration: 1.23 s
+
+      await new Logger().group('Running plugin "ESLint"', async () => {
+        new Logger().info(`${ansis.blue('$')} npx eslint . --format=json`);
+        return 'ESLint reported 4 errors and 11 warnings';
+      });
+
+      expect(output).toBe(`
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('│')} ${ansis.blue('$')} npx eslint . --format=json
+${ansis.cyan('└')} ${ansis.green('ESLint reported 4 errors and 11 warnings')} ${ansis.gray('(1.23 s)')}
+
+`);
+    });
+
+    it('should use workflow commands to group logs in GitHub Actions environment', async () => {
+      vi.stubEnv('CI', 'true');
+      vi.stubEnv('GITHUB_ACTIONS', 'true');
+      performanceNowSpy.mockReturnValueOnce(0).mockReturnValueOnce(1234); // group duration: 1.23 s
+      const logger = new Logger();
+
+      await logger.group('Running plugin "ESLint"', async () => {
+        logger.info('$ npx eslint . --format=json');
+        logger.warn('Skipping unknown rule "deprecation/deprecation"');
+        return 'ESLint reported 4 errors and 11 warnings';
+      });
+
+      expect(ansis.strip(output)).toBe(`
+::group::Running plugin "ESLint"
+│ $ npx eslint . --format=json
+│ Skipping unknown rule "deprecation/deprecation"
+└ ESLint reported 4 errors and 11 warnings (1.23 s)
+::endgroup::
+
+`);
+    });
+
+    it('should use collapsible sections in GitLab CI/CD environment, initial collapse depends on verbosity', async () => {
+      vi.stubEnv('CI', 'true');
+      vi.stubEnv('GITLAB_CI', 'true');
+      vi.setSystemTime(new Date(123456789000)); // current Unix timestamp: 123456789 seconds since epoch
+      performanceNowSpy
+        .mockReturnValueOnce(0)
+        .mockReturnValueOnce(123) // 1st group duration: 123 ms
+        .mockReturnValueOnce(0)
+        .mockReturnValue(45); // 2nd group duration: 45 ms
+      mathRandomSpy
+        .mockReturnValueOnce(0x1a / Math.pow(2, 8)) // 1st group's random ID: "1a"
+        .mockReturnValueOnce(0x1b / Math.pow(2, 8)); // 2nd group's random ID: "1b"
+      const logger = new Logger();
+
+      logger.setVerbose(false);
+      await logger.group('Running plugin "ESLint"', async () => {
+        logger.info(`${ansis.blue('$')} npx eslint . --format=json`);
+        logger.warn('Skipping unknown rule "deprecation/deprecation"');
+        return 'ESLint reported 4 errors and 11 warnings';
+      });
+      logger.setVerbose(true);
+      await logger.group('Running plugin "Code coverage"', async () => {
+        logger.info(`${ansis.blue('$')} npx vitest --coverage.enabled`);
+        return `Total line coverage is ${ansis.bold('82%')}`;
+      });
+
+      // debugging tip: temporarily remove '\r' character from original implementation
+      expect(output).toBe(`
+\x1b[0Ksection_start:123456789:code_pushup_logs_group_1a[collapsed=true]\r\x1b[0K${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('│')} ${ansis.blue('$')} npx eslint . --format=json
+${ansis.cyan('│')} ${ansis.yellow('Skipping unknown rule "deprecation/deprecation"')}
+${ansis.cyan('└')} ${ansis.green('ESLint reported 4 errors and 11 warnings')} ${ansis.gray('(123 ms)')}
+\x1b[0Ksection_end:123456789:code_pushup_logs_group_1a\r\x1b[0K
+
+\x1b[0Ksection_start:123456789:code_pushup_logs_group_1b\r\x1b[0K${ansis.bold.magenta('❯ Running plugin "Code coverage"')}
+${ansis.magenta('│')} ${ansis.blue('$')} npx vitest --coverage.enabled
+${ansis.magenta('└')} ${ansis.green(`Total line coverage is ${ansis.bold('82%')}`)} ${ansis.gray('(45 ms)')}
+\x1b[0Ksection_end:123456789:code_pushup_logs_group_1b\r\x1b[0K
+
+`);
+    });
+  });
+
+  describe('spinners', () => {
+    beforeEach(() => {
+      performanceNowSpy.mockReturnValueOnce(0).mockReturnValueOnce(42); // task duration: 42 ms
+    });
+
+    it('should render dots spinner for async tasks', async () => {
+      const task = new Logger().task(
+        'Uploading report to portal',
+        async () => 'Uploaded report to portal',
+      );
+
+      expect(output).toBe(`${ansis.cyan('⠋')} Uploading report to portal`);
+
+      vi.advanceTimersByTime(cliSpinners.dots.interval);
+      expect(output).toBe(`${ansis.cyan('⠙')} Uploading report to portal`);
+
+      vi.advanceTimersByTime(cliSpinners.dots.interval);
+      expect(output).toBe(`${ansis.cyan('⠹')} Uploading report to portal`);
+
+      await expect(task).resolves.toBeUndefined();
+
+      expect(output).toBe(
+        `${ansis.green('✔')} Uploaded report to portal ${ansis.gray('(42 ms)')}\n`,
+      );
+    });
+
+    it('should fail spinner if async task rejects', async () => {
+      const task = new Logger().task('Uploading report to portal', async () => {
+        throw new Error('GraphQL error: Invalid API key');
+      });
+
+      expect(output).toBe(`${ansis.cyan('⠋')} Uploading report to portal`);
+
+      await expect(task).rejects.toThrow('GraphQL error: Invalid API key');
+
+      expect(output).toBe(
+        `${ansis.red('✖')} Uploading report to portal → ${ansis.red('Error: GraphQL error: Invalid API key')}\n`,
+      );
+    });
+
+    it('should skip interactive spinner in CI', async () => {
+      vi.stubEnv('CI', 'true');
+
+      const task = new Logger().task(
+        'Uploading report to portal',
+        async () => 'Uploaded report to portal',
+      );
+
+      expect(output).toBe('- Uploading report to portal\n');
+
+      await task;
+
+      expect(output).toBe(
+        `
+- Uploading report to portal
+${ansis.green('✔')} Uploaded report to portal ${ansis.gray('(42 ms)')}
+`.trimStart(),
+      );
+    });
+
+    it('should fail spinner and exit if SIGINT received', async () => {
+      vi.spyOn(process, 'exit').mockReturnValue(undefined as never);
+      vi.spyOn(os, 'platform').mockReturnValue('linux');
+
+      new Logger().task(
+        'Uploading report to portal',
+        async () => 'Uploaded report to portal',
+      );
+
+      expect(output).toBe(`${ansis.cyan('⠋')} Uploading report to portal`);
+
+      process.emit('SIGINT');
+
+      expect(output).toBe(
+        `
+${ansis.red('✖')} Uploading report to portal ${ansis.red.bold('[SIGINT]')}
+
+${ansis.red.bold('Cancelled by SIGINT')}
+`.trimStart(),
+      );
+
+      expect(process.exit).toHaveBeenCalledWith(130);
+    });
+
+    it('should silence other logs while spinner is running, and print them with indentation after it completes', async () => {
+      vi.stubEnv('CP_VERBOSE', 'true');
+      const logger = new Logger();
+
+      const task = logger.task('Uploading report to portal', async () => {
+        logger.debug('Sent request to Portal API');
+        await new Promise(resolve => {
+          setTimeout(resolve, 42);
+        });
+        logger.debug('Received response from Portal API');
+        return 'Uploaded report to portal';
+      });
+
+      expect(output).toBe(`${ansis.cyan('⠋')} Uploading report to portal`);
+
+      await vi.advanceTimersByTimeAsync(42);
+      await expect(task).resolves.toBeUndefined();
+
+      expect(output).toBe(
+        `
+${ansis.green('✔')} Uploaded report to portal ${ansis.gray('(42 ms)')}
+  ${ansis.gray('Sent request to Portal API')}
+  ${ansis.gray('Received response from Portal API')}
+`.trimStart(),
+      );
+    });
+
+    it('should print other logs once spinner fails', async () => {
+      vi.stubEnv('CP_VERBOSE', 'true');
+      const logger = new Logger();
+
+      const task = logger.task('Uploading report to portal', async () => {
+        logger.debug('Sent request to Portal API');
+        await new Promise(resolve => {
+          setTimeout(resolve, 42);
+        });
+        logger.debug('Received response from Portal API');
+        throw new Error('GraphQL error: Invalid API key');
+      });
+
+      expect(output).toBe(`${ansis.cyan('⠋')} Uploading report to portal`);
+
+      vi.advanceTimersByTime(42);
+      await expect(task).rejects.toThrow('GraphQL error: Invalid API key');
+
+      expect(output).toBe(
+        `
+${ansis.red('✖')} Uploading report to portal → ${ansis.red('Error: GraphQL error: Invalid API key')}
+  ${ansis.gray('Sent request to Portal API')}
+  ${ansis.gray('Received response from Portal API')}
+`.trimStart(),
+      );
+    });
+
+    it('should print other logs immediately in CI', async () => {
+      vi.stubEnv('CI', 'true');
+      vi.stubEnv('CP_VERBOSE', 'true');
+      const logger = new Logger();
+
+      logger.task('Uploading report to portal', async () => {
+        logger.debug('Sent request to Portal API');
+        await new Promise(resolve => {
+          setTimeout(resolve, 42);
+        });
+        logger.debug('Received response from Portal API');
+        return 'Uploaded report to portal';
+      });
+
+      expect(ansis.strip(output)).toBe(
+        `
+- Uploading report to portal
+  Sent request to Portal API
+`.trimStart(),
+      );
+
+      await vi.advanceTimersByTimeAsync(42);
+
+      expect(ansis.strip(output)).toBe(
+        `
+- Uploading report to portal
+  Sent request to Portal API
+  Received response from Portal API
+✔ Uploaded report to portal (42 ms)
+`.trimStart(),
+      );
+    });
+
+    it('should use colored dollar prefix for commands (success)', async () => {
+      const command = new Logger().command(
+        'npx eslint . --format=json',
+        async () => {},
+      );
+
+      expect(output).toBe(
+        `${ansis.cyan('⠋')} ${ansis.blue('$')} npx eslint . --format=json`,
+      );
+
+      await expect(command).resolves.toBeUndefined();
+
+      expect(output).toBe(
+        `${ansis.green('✔')} ${ansis.green('$')} npx eslint . --format=json ${ansis.gray('(42 ms)')}\n`,
+      );
+    });
+
+    it('should use colored dollar prefix for commands (failure)', async () => {
+      const command = new Logger().command(
+        'npx eslint . --format=json',
+        async () => {
+          throw new Error('Process failed with exit code 1');
+        },
+      );
+
+      expect(output).toBe(
+        `${ansis.cyan('⠋')} ${ansis.blue('$')} npx eslint . --format=json`,
+      );
+
+      await expect(command).rejects.toThrow('Process failed with exit code 1');
+
+      expect(output).toBe(
+        `${ansis.red('✖')} ${ansis.red('$')} npx eslint . --format=json\n`,
+      );
+    });
+  });
+
+  describe('spinners + groups', () => {
+    beforeEach(() => {
+      performanceNowSpy
+        .mockReturnValueOnce(0)
+        .mockReturnValueOnce(0)
+        .mockReturnValueOnce(42) // task duration: 42 ms
+        .mockReturnValueOnce(50); // group duration: 50 ms;
+    });
+
+    it('should render line spinner for async tasks within group', async () => {
+      const logger = new Logger();
+
+      const group = logger.group('Running plugin "ESLint"', async () => {
+        await logger.command('npx eslint . --format=json', async () => {});
+        logger.warn('Skipping unknown rule "deprecation/deprecation"');
+        return 'ESLint reported 4 errors and 11 warnings';
+      });
+
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('-')} ${ansis.blue('$')} npx eslint . --format=json`,
+      );
+
+      vi.advanceTimersByTime(cliSpinners.line.interval);
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('\\')} ${ansis.blue('$')} npx eslint . --format=json`,
+      );
+
+      vi.advanceTimersByTime(cliSpinners.line.interval);
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('|')} ${ansis.blue('$')} npx eslint . --format=json`,
+      );
+
+      vi.advanceTimersByTime(cliSpinners.line.interval);
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('/')} ${ansis.blue('$')} npx eslint . --format=json`,
+      );
+
+      await expect(group).resolves.toBeUndefined();
+
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('│')} ${ansis.green('$')} npx eslint . --format=json ${ansis.gray('(42 ms)')}
+${ansis.cyan('│')} ${ansis.yellow('Skipping unknown rule "deprecation/deprecation"')}
+${ansis.cyan('└')} ${ansis.green('ESLint reported 4 errors and 11 warnings')} ${ansis.gray('(50 ms)')}
+
+`,
+      );
+    });
+
+    it('should colorize line spinner with same color as group', async () => {
+      const logger = new Logger();
+
+      const group1 = logger.group('Running plugin "ESLint"', async () => {
+        await logger.command('npx eslint . --format=json', async () => {});
+        return 'ESLint reported 4 errors and 11 warnings';
+      });
+
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('-')} ${ansis.blue('$')} npx eslint . --format=json`,
+      );
+
+      await group1;
+
+      performanceNowSpy
+        .mockReturnValueOnce(0)
+        .mockReturnValueOnce(0)
+        .mockReturnValueOnce(cliSpinners.line.interval) // task duration
+        .mockReturnValueOnce(cliSpinners.line.interval); // group duration
+
+      const group2 = logger.group('Running plugin "Lighthouse"', async () => {
+        await logger.task(
+          `Executing ${ansis.bold('runLighthouse')} function`,
+          async () => {
+            await new Promise(resolve => {
+              setTimeout(resolve, cliSpinners.line.interval);
+            });
+            return `Executed ${ansis.bold('runLighthouse')} function`;
+          },
+        );
+        return 'Calculated Lighthouse scores for 4 categories';
+      });
+
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('│')} ${ansis.green('$')} npx eslint . --format=json ${ansis.gray('(42 ms)')}
+${ansis.cyan('└')} ${ansis.green('ESLint reported 4 errors and 11 warnings')} ${ansis.gray('(50 ms)')}
+
+${ansis.bold.magenta('❯ Running plugin "Lighthouse"')}
+${ansis.magenta('-')} Executing ${ansis.bold('runLighthouse')} function`,
+      );
+
+      vi.advanceTimersByTime(cliSpinners.line.interval);
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('│')} ${ansis.green('$')} npx eslint . --format=json ${ansis.gray('(42 ms)')}
+${ansis.cyan('└')} ${ansis.green('ESLint reported 4 errors and 11 warnings')} ${ansis.gray('(50 ms)')}
+
+${ansis.bold.magenta('❯ Running plugin "Lighthouse"')}
+${ansis.magenta('\\')} Executing ${ansis.bold('runLighthouse')} function`,
+      );
+
+      await group2;
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('│')} ${ansis.green('$')} npx eslint . --format=json ${ansis.gray('(42 ms)')}
+${ansis.cyan('└')} ${ansis.green('ESLint reported 4 errors and 11 warnings')} ${ansis.gray('(50 ms)')}
+
+${ansis.bold.magenta('❯ Running plugin "Lighthouse"')}
+${ansis.magenta('│')} Executed ${ansis.bold('runLighthouse')} function ${ansis.gray('(130 ms)')}
+${ansis.magenta('└')} ${ansis.green('Calculated Lighthouse scores for 4 categories')} ${ansis.gray('(130 ms)')}
+
+`,
+      );
+    });
+
+    it('should skip interactive group spinner in CI', async () => {
+      vi.stubEnv('CI', 'true');
+      const logger = new Logger();
+
+      const group = logger.group('Running plugin "ESLint"', async () => {
+        await logger.command('npx eslint . --format=json', async () => {});
+        return 'ESLint reported 4 errors and 11 warnings';
+      });
+
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('│')} ${ansis.blue('$')} npx eslint . --format=json
+`,
+      );
+
+      await group;
+
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('│')} ${ansis.blue('$')} npx eslint . --format=json
+${ansis.cyan('│')} ${ansis.green('$')} npx eslint . --format=json ${ansis.gray('(42 ms)')}
+${ansis.cyan('└')} ${ansis.green('ESLint reported 4 errors and 11 warnings')} ${ansis.gray('(50 ms)')}
+
+`,
+      );
+    });
+
+    it('should fail group if spinner task rejects', async () => {
+      const logger = new Logger();
+
+      const group = logger.group('Running plugin "ESLint"', async () => {
+        await logger.command('npx eslint . --format=json', async () => {
+          await new Promise(resolve => {
+            setTimeout(resolve, 0);
+          });
+          throw new Error('Process failed with exit code 1');
+        });
+        return 'ESLint reported 4 errors and 11 warnings';
+      });
+
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('-')} ${ansis.blue('$')} npx eslint . --format=json`,
+      );
+
+      vi.advanceTimersToNextTimer();
+      await expect(group).rejects.toThrow('Process failed with exit code 1');
+
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('│')} ${ansis.red('$')} npx eslint . --format=json
+${ansis.cyan('└')} ${ansis.red('Error: Process failed with exit code 1')}
+
+`,
+      );
+    });
+
+    it('should fail spinner, complete group and exit if SIGINT received', async () => {
+      vi.spyOn(process, 'exit').mockReturnValue(undefined as never);
+      vi.spyOn(os, 'platform').mockReturnValue('win32');
+      const logger = new Logger();
+
+      logger.group('Running plugin "ESLint"', async () => {
+        await logger.command('npx eslint . --format=json', async () => {});
+        return 'ESLint reported 4 errors and 11 warnings';
+      });
+
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('-')} ${ansis.blue('$')} npx eslint . --format=json`,
+      );
+
+      process.emit('SIGINT');
+
+      expect(output).toBe(
+        `
+${ansis.bold.cyan('❯ Running plugin "ESLint"')}
+${ansis.cyan('└')} ${ansis.blue('$')} npx eslint . --format=json ${ansis.red.bold('[SIGINT]')}
+
+${ansis.red.bold('Cancelled by SIGINT')}
+`,
+      );
+
+      expect(process.exit).toHaveBeenCalledWith(2);
+    });
+
+    it('should indent other logs within group if they were logged while spinner was active', async () => {
+      vi.stubEnv('CP_VERBOSE', 'true');
+      const logger = new Logger();
+
+      const group = logger.group('Running plugin "ESLint"', async () => {
+        await logger.command('npx eslint . --format=json', async () => {
+          logger.debug('ESLint v9.0.0\n\nAll files pass linting.\n');
+        });
+        return 'ESLint reported 0 problems';
+      });
+
+      expect(ansis.strip(output)).toBe(
+        `
+❯ Running plugin "ESLint"
+- $ npx eslint . --format=json`,
+      );
+
+      await expect(group).resolves.toBeUndefined();
+
+      expect(ansis.strip(output)).toBe(
+        `
+❯ Running plugin "ESLint"
+│ $ npx eslint . --format=json (42 ms)
+│   ESLint v9.0.0
+│   
+│   All files pass linting.
+│   
+└ ESLint reported 0 problems (50 ms)
+
+`,
+      );
+    });
+
+    it('should indent other logs from spinner in group when it fails in CI', async () => {
+      vi.stubEnv('CI', 'true');
+      const logger = new Logger();
+
+      const group = logger.group('Running plugin "ESLint"', async () => {
+        await logger.command('npx eslint . --format=json', async () => {
+          logger.error(
+            "\nOops! Something went wrong! :(\n\nESLint: 8.26.0\n\nESLint couldn't find a configuration file.\n",
+          );
+          throw new Error('Process failed with exit code 2');
+        });
+        return 'ESLint reported 0 problems';
+      });
+
+      await expect(group).rejects.toThrow('Process failed with exit code 2');
+
+      expect(ansis.strip(output)).toBe(
+        `
+❯ Running plugin "ESLint"
+│ $ npx eslint . --format=json
+│   
+│   Oops! Something went wrong! :(
+│   
+│   ESLint: 8.26.0
+│   
+│   ESLint couldn't find a configuration file.
+│   
+│ $ npx eslint . --format=json
+└ Error: Process failed with exit code 2
+
+`,
+      );
+    });
+  });
+
+  describe('invalid usage', () => {
+    it('should throw if nesting group in another group', async () => {
+      const logger = new Logger();
+
+      await expect(
+        logger.group('Outer group', async () => {
+          await logger.group('Inner group', async () => 'Inner group complete');
+          return 'Outer group complete';
+        }),
+      ).rejects.toThrow(
+        'Internal Logger error - nested groups are not supported',
+      );
+    });
+
+    it('should throw if nesting groups across logger instances', async () => {
+      await expect(
+        new Logger().group('Outer group', async () => {
+          await new Logger().group(
+            'Inner group',
+            async () => 'Inner group complete',
+          );
+          return 'Outer group complete';
+        }),
+      ).rejects.toThrow(
+        'Internal Logger error - nested groups are not supported',
+      );
+    });
+
+    it('should throw if creating group while spinner is running', async () => {
+      const logger = new Logger();
+
+      await expect(
+        logger.task('Some async process', async () => {
+          await logger.group('Some group', async () => 'Group completed');
+          return 'Async process completed';
+        }),
+      ).rejects.toThrow(
+        'Internal Logger error - creating group in active spinner is not supported',
+      );
+    });
+
+    it('should throw if starting new spinner while another is still active', async () => {
+      const logger = new Logger();
+
+      await expect(
+        Promise.all([
+          logger.task('Task 1', async () => 'DONE'),
+          logger.task('Task 2', async () => 'DONE'),
+        ]),
+      ).rejects.toThrow(
+        'Internal Logger error - concurrent spinners are not supported',
+      );
+    });
+  });
+});
diff --git a/packages/utils/src/lib/logger.ts b/packages/utils/src/lib/logger.ts
new file mode 100644
index 000000000..087c4c55f
--- /dev/null
+++ b/packages/utils/src/lib/logger.ts
@@ -0,0 +1,475 @@
+import ansis, { type AnsiColors } from 'ansis';
+import os from 'node:os';
+import ora, { type Ora } from 'ora';
+import { dateToUnixTimestamp } from './dates.js';
+import { isEnvVarEnabled } from './env.js';
+import { formatDuration, indentLines, transformLines } from './formatting.js';
+import { settlePromise } from './promises.js';
+
+type GroupColor = Extract<AnsiColors, 'cyan' | 'magenta'>;
+type CiPlatform = 'GitHub Actions' | 'GitLab CI/CD';
+
+const GROUP_COLOR_ENV_VAR_NAME = 'CP_LOGGER_GROUP_COLOR';
+
+/**
+ * Rich logging implementation for Code PushUp CLI, plugins, etc.
+ *
+ * Use {@link logger} singleton.
+ */
+export class Logger {
+  #isVerbose = isEnvVarEnabled('CP_VERBOSE');
+  #isCI = isEnvVarEnabled('CI');
+  #ciPlatform: CiPlatform | undefined =
+    process.env['GITHUB_ACTIONS'] === 'true'
+      ? 'GitHub Actions'
+      : process.env['GITLAB_CI'] === 'true'
+        ? 'GitLab CI/CD'
+        : undefined;
+  #groupColor: GroupColor | undefined =
+    process.env[GROUP_COLOR_ENV_VAR_NAME] === 'cyan' ||
+    process.env[GROUP_COLOR_ENV_VAR_NAME] === 'magenta'
+      ? process.env[GROUP_COLOR_ENV_VAR_NAME]
+      : undefined;
+
+  #groupsCount = 0;
+  #activeSpinner: Ora | undefined;
+  #activeSpinnerLogs: string[] = [];
+  #endsWithBlankLine = false;
+
+  #groupSymbols = {
+    start: '❯',
+    middle: '│',
+    end: '└',
+  };
+
+  #sigintListener = () => {
+    if (this.#activeSpinner != null) {
+      const text = `${this.#activeSpinner.text} ${ansis.red.bold('[SIGINT]')}`;
+      if (this.#groupColor) {
+        this.#activeSpinner.stopAndPersist({
+          text,
+          symbol: this.#colorize(this.#groupSymbols.end, this.#groupColor),
+        });
+        this.#setGroupColor(undefined);
+      } else {
+        this.#activeSpinner.fail(text);
+      }
+      this.#activeSpinner = undefined;
+    }
+    this.newline();
+    this.error(ansis.bold('Cancelled by SIGINT'));
+    process.exit(os.platform() === 'win32' ? 2 : 130);
+  };
+
+  /**
+   * Logs an error to the console (red).
+   *
+   * Automatically adapts to logger state if called within {@link task}, {@link group}, etc.
+   *
+   * @example
+   * logger.error('Config file is invalid');
+   *
+   * @param message Error text
+   */
+  error(message: string): void {
+    this.#log(message, 'red');
+  }
+
+  /**
+   * Logs a warning to the console (yellow).
+   *
+   * Automatically adapts to logger state if called within {@link task}, {@link group}, etc.
+   *
+   * @example
+   * logger.warn('Skipping invalid audits');
+   *
+   * @param message Warning text
+   */
+  warn(message: string): void {
+    this.#log(message, 'yellow');
+  }
+
+  /**
+   * Logs an informational message to the console (unstyled).
+   *
+   * Automatically adapts to logger state if called within {@link task}, {@link group}, etc.
+   *
+   * @example
+   * logger.info('Code PushUp CLI v0.80.2');
+   *
+   * @param message Info text
+   */
+  info(message: string): void {
+    this.#log(message);
+  }
+
+  /**
+   * Logs a debug message to the console (gray), but **only if verbose** flag is set (see {@link isVerbose}).
+   *
+   * Automatically adapts to logger state if called within {@link task}, {@link group}, etc.
+   *
+   * @example
+   * logger.debug('Running ESLint version 9.16.0');
+   *
+   * @param message Debug text
+   */
+  debug(message: string): void {
+    if (this.#isVerbose) {
+      this.#log(message, 'gray');
+    }
+  }
+
+  /**
+   * Print a blank line to the console, used to separate logs for readability.
+   *
+   * Automatically adapts to logger state if called within {@link task}, {@link group}, etc.
+   *
+   * @example
+   * logger.newline();
+   */
+  newline(): void {
+    this.#log('');
+  }
+
+  /**
+   * Is verbose flag set?
+   *
+   * Verbosity is configured by {@link setVerbose} call or `CP_VERBOSE` environment variable.
+   *
+   * @example
+   * if (logger.isVerbose()) {
+   *   // ...
+   * }
+   */
+  isVerbose(): boolean {
+    return this.#isVerbose;
+  }
+
+  /**
+   * Sets verbose flag for this logger.
+   *
+   * Also sets the `CP_VERBOSE` environment variable.
+   * This means any future {@link Logger} instantiations (including child processes) will use the same verbosity level.
+   *
+   * @example
+   * logger.setVerbose(process.argv.includes('--verbose'));
+   *
+   * @param isVerbose Verbosity level
+   */
+  setVerbose(isVerbose: boolean): void {
+    process.env['CP_VERBOSE'] = `${isVerbose}`;
+    this.#isVerbose = isVerbose;
+  }
+
+  /**
+   * Animates asynchronous work using a spinner.
+   *
+   * Basic logs are supported within the worker function, they will be printed with indentation once the spinner completes.
+   *
+   * In CI environments, the spinner animation is disabled, and inner logs are printed immediately.
+   *
+   * Spinners may be nested within a {@link group} call, in which case line symbols are used instead of dots, as well the group's color.
+   *
+   * The task's duration is included in the logged output as a suffix.
+   *
+   * Listens for `SIGINT` event in order to cancel and restore spinner before exiting.
+   *
+   * Concurrent or nested spinners are not supported, nor can groups be nested in spinners.
+   *
+   * @example
+   * await logger.task('Uploading report to portal', async () => {
+   *   // ...
+   *   return 'Uploaded report to portal';
+   * });
+   *
+   * @param title Display text used as pending message.
+   * @param worker Asynchronous implementation. Returned promise determines spinner status and final message. Support for inner logs has some limitations (described above).
+   */
+  task(title: string, worker: () => Promise<string>): Promise<void> {
+    return this.#spinner(worker, {
+      pending: title,
+      success: value => value,
+      failure: error => `${title} → ${ansis.red(`${error}`)}`,
+    });
+  }
+
+  /**
+   * Similar to {@link task}, but spinner texts are formatted as shell commands.
+   *
+   * A `$`-prefix is added. Its color indicates the status (blue=pending, green=success, red=failure).
+   *
+   * @example
+   * await logger.command('npx eslint . --format=json', async () => {
+   *   // ...
+   * });
+   *
+   * @param bin Command string with arguments.
+   * @param worker Asynchronous execution of the command (not implemented by the logger).
+   */
+  command(bin: string, worker: () => Promise<void>): Promise<void> {
+    return this.#spinner(worker, {
+      pending: `${ansis.blue('$')} ${bin}`,
+      success: () => `${ansis.green('$')} ${bin}`,
+      failure: () => `${ansis.red('$')} ${bin}`,
+    });
+  }
+
+  /**
+   * Groups many logs into a visually distinct section.
+   *
+   * Groups alternate prefix colors between cyan and magenta.
+   *
+   * The group's total duration is included in the logged output.
+   *
+   * Nested groups are not supported.
+   *
+   * @example
+   * await logger.group('Running plugin "ESLint"', async () => {
+   *   logger.debug('ESLint version is 9.16.0');
+   *   await logger.command('npx eslint . --format=json', () => {
+   *     // ...
+   *   })
+   *   logger.info('Found 42 lint errors.');
+   *   return 'Completed "ESLint" plugin execution';
+   * });
+   *
+   * @param title Display title for the group.
+   * @param worker Asynchronous implementation. Returned promise determines group status and ending message. Inner logs are attached to the group.
+   */
+  async group(title: string, worker: () => Promise<string>): Promise<void> {
+    if (this.#groupColor) {
+      throw new Error(
+        'Internal Logger error - nested groups are not supported',
+      );
+    }
+    if (this.#activeSpinner) {
+      throw new Error(
+        'Internal Logger error - creating group in active spinner is not supported',
+      );
+    }
+
+    if (!this.#endsWithBlankLine) {
+      this.newline();
+    }
+
+    this.#setGroupColor(this.#groupsCount % 2 === 0 ? 'cyan' : 'magenta');
+    this.#groupsCount++;
+
+    const groupMarkers = this.#createGroupMarkers();
+
+    console.log(groupMarkers.start(title));
+
+    const start = performance.now();
+    const result = await settlePromise(worker());
+    const end = performance.now();
+
+    if (result.status === 'fulfilled') {
+      console.log(
+        [
+          this.#colorize(this.#groupSymbols.end, this.#groupColor),
+          this.#colorize(result.value, 'green'),
+          this.#formatDurationSuffix({ start, end }),
+        ].join(' '),
+      );
+    } else {
+      console.log(
+        [
+          this.#colorize(this.#groupSymbols.end, this.#groupColor),
+          this.#colorize(`${result.reason}`, 'red'),
+        ].join(' '),
+      );
+    }
+
+    const endMarker = groupMarkers.end();
+    if (endMarker) {
+      console.log(endMarker);
+    }
+    this.#setGroupColor(undefined);
+    this.newline();
+
+    if (result.status === 'rejected') {
+      throw result.reason;
+    }
+  }
+
+  #createGroupMarkers(): {
+    start: (title: string) => string;
+    end: () => string;
+  } {
+    switch (this.#ciPlatform) {
+      case 'GitHub Actions':
+        // https://docs.github.com/en/actions/reference/workflows-and-actions/workflow-commands#grouping-log-lines
+        return {
+          start: title =>
+            `::group::${this.#formatGroupTitle(title, { prefix: false })}`,
+          end: () => '::endgroup::',
+        };
+      case 'GitLab CI/CD':
+        // https://docs.gitlab.com/ci/jobs/job_logs/#custom-collapsible-sections
+        const ansiEscCode = '\x1b[0K'; // '\e' ESC character only works for `echo -e`, Node console must use '\x1b'
+        const id = Math.random().toString(16).slice(2);
+        const sectionId = `code_pushup_logs_group_${id}`;
+        return {
+          start: title => {
+            const sectionHeader = this.#formatGroupTitle(title, {
+              prefix: true,
+            });
+            const options = this.#isVerbose ? '' : '[collapsed=true]';
+            // return `${ansiEscCode}section_start:${dateToUnixTimestamp(new Date())}:${sectionId}${options}${ansiEscCode}${sectionHeader}`;
+            return `${ansiEscCode}section_start:${dateToUnixTimestamp(new Date())}:${sectionId}${options}\r${ansiEscCode}${sectionHeader}`;
+          },
+          end: () =>
+            // `${ansiEscCode}section_end:${dateToUnixTimestamp(new Date())}:${sectionId}${ansiEscCode}`,
+            `${ansiEscCode}section_end:${dateToUnixTimestamp(new Date())}:${sectionId}\r${ansiEscCode}`,
+        };
+      case undefined:
+        return {
+          start: title => this.#formatGroupTitle(title, { prefix: true }),
+          end: () => '',
+        };
+    }
+  }
+
+  #formatGroupTitle(title: string, symbols: { prefix: boolean }): string {
+    const text = symbols.prefix
+      ? `${this.#groupSymbols.start} ${title}`
+      : title;
+    return ansis.bold(this.#colorize(text, this.#groupColor));
+  }
+
+  #setGroupColor(groupColor: GroupColor | undefined) {
+    this.#groupColor = groupColor;
+    if (groupColor) {
+      process.env[GROUP_COLOR_ENV_VAR_NAME] = groupColor;
+    } else {
+      delete process.env[GROUP_COLOR_ENV_VAR_NAME];
+    }
+  }
+
+  async #spinner<T>(
+    worker: () => Promise<T>,
+    messages: {
+      pending: string;
+      success: (value: T) => string;
+      failure: (error: unknown) => string;
+    },
+  ): Promise<void> {
+    if (this.#activeSpinner) {
+      throw new Error(
+        'Internal Logger error - concurrent spinners are not supported',
+      );
+    }
+
+    process.removeListener('SIGINT', this.#sigintListener);
+    process.addListener('SIGINT', this.#sigintListener);
+
+    if (this.#groupColor) {
+      this.#activeSpinner = ora({
+        text: messages.pending,
+        spinner: 'line',
+        color: this.#groupColor,
+      });
+      if (this.#isCI) {
+        console.log(this.#format(messages.pending, undefined));
+      } else {
+        this.#activeSpinner.start();
+      }
+    } else {
+      this.#activeSpinner = ora(messages.pending);
+      this.#activeSpinner.start();
+    }
+
+    this.#endsWithBlankLine = false;
+
+    const start = performance.now();
+    const result = await settlePromise(worker());
+    const end = performance.now();
+
+    const text =
+      result.status === 'fulfilled'
+        ? [
+            messages.success(result.value),
+            this.#formatDurationSuffix({ start, end }),
+          ].join(' ')
+        : messages.failure(result.reason);
+
+    if (this.#activeSpinner) {
+      if (this.#groupColor) {
+        this.#activeSpinner.stopAndPersist({
+          text,
+          symbol: this.#colorize(this.#groupSymbols.middle, this.#groupColor),
+        });
+      } else {
+        if (result.status === 'fulfilled') {
+          this.#activeSpinner.succeed(text);
+        } else {
+          this.#activeSpinner.fail(text);
+        }
+      }
+      this.#endsWithBlankLine = false;
+    }
+
+    this.#activeSpinner = undefined;
+    this.#activeSpinnerLogs.forEach(message => {
+      this.#log(indentLines(message, 2));
+    });
+    this.#activeSpinnerLogs = [];
+    process.removeListener('SIGINT', this.#sigintListener);
+
+    if (result.status === 'rejected') {
+      throw result.reason;
+    }
+  }
+
+  #log(message: string, color?: AnsiColors): void {
+    if (this.#activeSpinner) {
+      if (this.#activeSpinner.isSpinning) {
+        this.#activeSpinnerLogs.push(this.#format(message, color));
+      } else {
+        console.log(this.#format(indentLines(message, 2), color));
+      }
+    } else {
+      console.log(this.#format(message, color));
+    }
+    this.#endsWithBlankLine = !message || message.endsWith('\n');
+  }
+
+  #format(message: string, color: AnsiColors | undefined): string {
+    if (!this.#groupColor || this.#activeSpinner?.isSpinning) {
+      return this.#colorize(message, color);
+    }
+    return transformLines(
+      message,
+      line =>
+        `${this.#colorize('│', this.#groupColor)} ${this.#colorize(line, color)}`,
+    );
+  }
+
+  #colorize(text: string, color: AnsiColors | undefined): string {
+    if (!color) {
+      return text;
+    }
+    return ansis[color](text);
+  }
+
+  #formatDurationSuffix({
+    start,
+    end,
+  }: {
+    start: number;
+    end: number;
+  }): string {
+    const duration = formatDuration(end - start);
+    return ansis.gray(`(${duration})`);
+  }
+}
+
+/**
+ * Shared {@link Logger} instance.
+ *
+ * @example
+ * import { logger } from '@code-pushup/utils';
+ *
+ * logger.info('Made with ❤️ by Code PushUp');
+ */
+export const logger = new Logger();
diff --git a/packages/utils/src/lib/promises.ts b/packages/utils/src/lib/promises.ts
index 8216acfe2..9e554a302 100644
--- a/packages/utils/src/lib/promises.ts
+++ b/packages/utils/src/lib/promises.ts
@@ -28,3 +28,14 @@ export async function asyncSequential<TInput, TOutput>(
   }
   return results;
 }
+
+export async function settlePromise<T>(
+  promise: Promise<T>,
+): Promise<PromiseSettledResult<T>> {
+  try {
+    const value = await promise;
+    return { status: 'fulfilled', value };
+  } catch (error) {
+    return { status: 'rejected', reason: error };
+  }
+}
diff --git a/packages/utils/src/lib/promises.unit.test.ts b/packages/utils/src/lib/promises.unit.test.ts
index 89434b0bc..9139ba43c 100644
--- a/packages/utils/src/lib/promises.unit.test.ts
+++ b/packages/utils/src/lib/promises.unit.test.ts
@@ -1,5 +1,5 @@
 import { describe } from 'vitest';
-import { asyncSequential, groupByStatus } from './promises.js';
+import { asyncSequential, groupByStatus, settlePromise } from './promises.js';
 
 describe('groupByStatus', () => {
   it('should group results by status', () => {
@@ -50,3 +50,20 @@ describe('asyncSequential', () => {
     expect(sequentialResult).not.toEqual(parallelResult);
   });
 });
+
+describe('settlePromise', () => {
+  it('should wrap resolved value in object with status (as in `Promise.allSettled`)', async () => {
+    await expect(settlePromise(Promise.resolve(42))).resolves.toEqual({
+      status: 'fulfilled',
+      value: 42,
+    });
+  });
+
+  it('should resolve rejected promise', async () => {
+    const error = new Error('something went wrong');
+    await expect(settlePromise(Promise.reject(error))).resolves.toEqual({
+      status: 'rejected',
+      reason: error,
+    });
+  });
+});
diff --git a/packages/utils/src/lib/reports/__snapshots__/generate-md-report.unit.test.ts.snap b/packages/utils/src/lib/reports/__snapshots__/generate-md-report.unit.test.ts.snap
index 29b525112..cca882a1e 100644
--- a/packages/utils/src/lib/reports/__snapshots__/generate-md-report.unit.test.ts.snap
+++ b/packages/utils/src/lib/reports/__snapshots__/generate-md-report.unit.test.ts.snap
@@ -11,7 +11,7 @@ Report was created by [Code PushUp](https://github.com/code-pushup/cli#readme) o
 
 | Commit                                                       | Version  | Duration | Plugins | Categories | Audits |
 | :----------------------------------------------------------- | :------: | -------: | :-----: | :--------: | :----: |
-| ci: update action (535b8e9e557336618a764f3fa45609d224a62837) | \`v1.0.0\` |   4.20 s |    1    |     3      |   3    |
+| ci: update action (535b8e9e557336618a764f3fa45609d224a62837) | \`v1.0.0\` |    4.2 s |    1    |     3      |   3    |
 "
 `;
 
diff --git a/packages/utils/src/lib/reports/generate-md-report.unit.test.ts b/packages/utils/src/lib/reports/generate-md-report.unit.test.ts
index 91f47f7c9..25761d37d 100644
--- a/packages/utils/src/lib/reports/generate-md-report.unit.test.ts
+++ b/packages/utils/src/lib/reports/generate-md-report.unit.test.ts
@@ -601,7 +601,7 @@ describe('aboutSection', () => {
     expect(md).toContainMarkdownTableRow([
       'ci: update action (535b8e9e557336618a764f3fa45609d224a62837)',
       '`v1.0.0`',
-      '4.20 s',
+      '4.2 s',
       '1',
       '3',
       '3',