{
  "url": "https://www.letras.mus.br",
  "auditedAt": "2026-07-24T10:08:59.870Z",
  "mode": "report",
  "status": "completed",
  "statusDetail": "Coverage-complete report-only audit across six representative paths. No local source was provided.",
  "page": {
    "appType": "mpa",
    "framework": "Server-rendered multi-page site with substantial client-side media, identity, consent and advertising JavaScript",
    "notes": "Public lyrics/music service. Plans route redirected to homepage during this run. Excluded authenticated account internals, payment completion, contribution/editor flows and academy courses because they are separate or gated journeys."
  },
  "evidenceUsed": [
    "screenshot",
    "dom",
    "evaluate-probe",
    "layout-metrics",
    "trace",
    "har",
    "headers",
    "cookies",
    "trackers",
    "secrets",
    "images",
    "discoverability",
    "heap-summary",
    "lighthouse",
    "robots/sitemap/manifest fetch"
  ],
  "guidanceConsulted": [
    "dark-mode",
    "component-specific-light-dark-theme",
    "accessibility",
    "adapt-scrollbar-to-contrast-preferences",
    "same-document-transitions",
    "cross-document-transitions",
    "group-element-transitions",
    "faster-spa-view-transitions",
    "scrollytelling",
    "parallax-scroll-effects",
    "scroll-entry-exit-effects",
    "carousel-slide-effects",
    "physics-based-easing",
    "individual-transform-properties",
    "animate-element-entry-exit",
    "animate-to-from-top-layer",
    "animate-to-intrinsic-sizes",
    "dynamic-sibling-animations",
    "interactive-content-reveal",
    "pull-to-reveal",
    "swipe-to-remove",
    "shrinking-header-on-scroll",
    "scroll-progress-indicator",
    "scroll-position-aware-elements",
    "scroll-snap-realtime-feedback",
    "scroll-snap-state-sync",
    "scroll-target-on-load",
    "soft-edge-content-fade",
    "scrollability-affordance-hints",
    "anchor-positioning-tab-underline",
    "position-aware-tooltips",
    "interest-triggered-tooltips",
    "interest-triggered-action-previews",
    "directional-navigation-transitions",
    "carousel-snap-highlights",
    "navigation-drawer",
    "stack-drill-down",
    "persistent-app-tours",
    "persistent-toast-notifications",
    "light-dismiss-a-dialog",
    "platform-controls-dismiss-dialog",
    "declarative-dialog-popover-control",
    "animated-select-picker",
    "branded-select-styling",
    "brand-consistent-forms",
    "custom-select-picker-layouts",
    "rich-media-picker",
    "complex-shapes",
    "shaped-cutouts",
    "overflow-clipping-control",
    "visually-texture-content",
    "apply-webgl-shaders",
    "interactive-content-in-3d-scenes",
    "highlight-text-ranges",
    "prevent-text-wrapping",
    "customize-scrollbar-color-and-thickness",
    "export-html-media-from-canvas",
    "fluid-scaling",
    "calculate-with-intrinsic-sizes",
    "css-layout",
    "size-aware-styling",
    "content-based-styling",
    "child-state-based-styling",
    "design-token-reactivity",
    "dynamic-sibling-styling",
    "form-fields-automatically-fit-contents",
    "improve-text-layout-and-legibility",
    "forms",
    "accessible-error-announcement",
    "required-field-feedback",
    "validate-input-after-interaction",
    "identify-inp-causes",
    "schedule-tasks-by-priority",
    "optimize-preload-priority",
    "improve-next-page-load-performance",
    "interactions-in-complex-layouts",
    "performance",
    "visually-stable-font-fallbacks",
    "break-up-long-tasks",
    "identify-heavy-scripts",
    "optimize-script-priority",
    "defer-rendering-heavy-content",
    "defer-work-until-scroll-ends",
    "optimize-image-priority",
    "conditional-async-dependencies",
    "expose-canvas-content-to-browser-features",
    "move-dom-element-without-losing-state",
    "precise-text-alignment",
    "visually-stable-mixed-fonts",
    "css",
    "html",
    "reduce-style-repetition",
    "security",
    "privacy",
    "batch-analytics-events",
    "full-session-analytics",
    "calculate-total-foreground-time",
    "passkeys",
    "passkey-registration",
    "passkey-authentication",
    "passkey-reauthentication",
    "passkey-conditional-create",
    "passkey-management",
    "flicker-free-client-side-ab-testing",
    "consistent-cross-document-transitions",
    "stabilize-reactive-state",
    "resilient-context-menus-and-nested-dropdowns",
    "persistent-top-layer-ui",
    "detect-initial-visibility-state",
    "sequence-distributed-events",
    "translator",
    "language-detection",
    "support-global-calendar-systems",
    "capture-location-agnostic-data",
    "format-human-readable-durations",
    "manage-recurring-intervals",
    "calculate-event-differentials",
    "coordinate-global-events",
    "model-partial-time-concepts",
    "search-hidden-content",
    "select-menu-interaction",
    "style-parent-with-has",
    "autofill-address-form",
    "autofill-payment-form",
    "autofill-sign-in-form",
    "autofill-sign-up-form",
    "autofill-highlight-inputs",
    "deliver-optimized-decorative-images",
    "resolution-optimized-pseudo-elements",
    "deprioritize-background-fetches",
    "efficient-background-processing",
    "webmcp",
    "agentic-forms",
    "agentic-javascript-tools",
    "language-model",
    "summarizer"
  ],
  "artifacts": [
    {
      "type": "layout",
      "path": "evidence/artist-layout-mobile.json",
      "caption": "artist layout mobile",
      "condition": "viewport: 360x800",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/artist-probe.json",
      "caption": "artist probe",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/artist.png",
      "caption": "artist",
      "findingIds": [
        "F02"
      ]
    },
    {
      "type": "other",
      "path": "evidence/consent-buttons.json",
      "caption": "consent buttons",
      "findingIds": [
        "F19"
      ]
    },
    {
      "type": "other",
      "path": "evidence/consent-probe.json",
      "caption": "consent probe",
      "findingIds": [
        "F17"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/contact-sheet.png",
      "caption": "contact sheet",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/cookies.json",
      "caption": "cookies",
      "findingIds": [
        "F12"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/discover-home-crawler.png",
      "caption": "discover home crawler",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/discover-home-rendered.png",
      "caption": "discover home rendered",
      "findingIds": []
    },
    {
      "type": "discoverability",
      "path": "evidence/discover-home.json",
      "caption": "discover home",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/discover-song-crawler.png",
      "caption": "discover song crawler",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/discover-song-rendered.png",
      "caption": "discover song rendered",
      "findingIds": []
    },
    {
      "type": "discoverability",
      "path": "evidence/discover-song.json",
      "caption": "discover song",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/error-404.json",
      "caption": "error 404",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/error-404.png",
      "caption": "error 404",
      "findingIds": [
        "F02"
      ]
    },
    {
      "type": "other",
      "path": "evidence/form-validation.json",
      "caption": "form validation",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/headers.json",
      "caption": "headers",
      "findingIds": [
        "F12"
      ]
    },
    {
      "type": "heap",
      "path": "evidence/heap-baseline.json",
      "caption": "heap baseline",
      "findingIds": []
    },
    {
      "type": "heap",
      "path": "evidence/heap-post.json",
      "caption": "heap post",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/home-content-mobile.png",
      "caption": "home content mobile",
      "condition": "viewport: 360x800",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/home-content.png",
      "caption": "home content",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/home-dark.png",
      "caption": "home dark",
      "condition": "prefers-color-scheme: dark",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/home-dismissed.png",
      "caption": "home dismissed",
      "findingIds": []
    },
    {
      "type": "dom",
      "path": "evidence/home-dom.json",
      "caption": "home dom",
      "findingIds": [
        "F04",
        "F06",
        "F18",
        "F21"
      ]
    },
    {
      "type": "other",
      "path": "evidence/home-images.json",
      "caption": "home images",
      "findingIds": [
        "F14"
      ]
    },
    {
      "type": "layout",
      "path": "evidence/home-layout-mobile.json",
      "caption": "home layout mobile",
      "condition": "viewport: 360x800",
      "findingIds": [
        "F01"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/home-mobile.png",
      "caption": "home mobile",
      "condition": "viewport: 360x800",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/home-probe.json",
      "caption": "home probe",
      "findingIds": [
        "F06",
        "F17"
      ]
    },
    {
      "type": "har-summary",
      "path": "evidence/home-summary.json",
      "caption": "home summary",
      "findingIds": [
        "F08",
        "F13"
      ]
    },
    {
      "type": "har",
      "path": "evidence/home.har",
      "caption": "home",
      "findingIds": [
        "F08",
        "F13"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/home.png",
      "caption": "home",
      "findingIds": [
        "F02",
        "F19",
        "F21"
      ]
    },
    {
      "type": "lighthouse",
      "path": "evidence/lighthouse-details.json",
      "caption": "lighthouse details",
      "findingIds": [
        "F08"
      ]
    },
    {
      "type": "lighthouse",
      "path": "evidence/lighthouse-home.json",
      "caption": "lighthouse home",
      "findingIds": [
        "F07",
        "F09",
        "F10",
        "F20"
      ]
    },
    {
      "type": "lighthouse",
      "path": "evidence/lighthouse-song.json",
      "caption": "lighthouse song",
      "findingIds": [
        "F07",
        "F09",
        "F10",
        "F11"
      ]
    },
    {
      "type": "layout",
      "path": "evidence/listing-layout-mobile.json",
      "caption": "listing layout mobile",
      "condition": "viewport: 360x800",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/listing-probe.json",
      "caption": "listing probe",
      "findingIds": [
        "F05",
        "F18"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/listing.png",
      "caption": "listing",
      "findingIds": [
        "F02"
      ]
    },
    {
      "type": "other",
      "path": "evidence/manifest-sitemap.json",
      "caption": "manifest sitemap",
      "findingIds": [
        "F15"
      ]
    },
    {
      "type": "layout",
      "path": "evidence/plans-layout-mobile.json",
      "caption": "plans layout mobile",
      "condition": "viewport: 360x800",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/plans-probe.json",
      "caption": "plans probe",
      "findingIds": [
        "F16"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/plans.png",
      "caption": "plans",
      "findingIds": [
        "F02",
        "F16"
      ]
    },
    {
      "type": "other",
      "path": "evidence/preferences-probe.json",
      "caption": "preferences probe",
      "findingIds": [
        "F03",
        "F20"
      ]
    },
    {
      "type": "other",
      "path": "evidence/recon.json",
      "caption": "recon",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/secrets.json",
      "caption": "secrets",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/song-content-mobile.png",
      "caption": "song content mobile",
      "condition": "viewport: 360x800",
      "findingIds": [
        "F01"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/song-content.png",
      "caption": "song content",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/song-images.json",
      "caption": "song images",
      "findingIds": [
        "F14"
      ]
    },
    {
      "type": "layout",
      "path": "evidence/song-layout-mobile.json",
      "caption": "song layout mobile",
      "condition": "viewport: 360x800",
      "findingIds": [
        "F01"
      ]
    },
    {
      "type": "screenshot",
      "path": "evidence/song-mobile.png",
      "caption": "song mobile",
      "condition": "viewport: 360x800",
      "findingIds": []
    },
    {
      "type": "other",
      "path": "evidence/song-probe.json",
      "caption": "song probe",
      "findingIds": [
        "F04",
        "F05",
        "F09",
        "F11",
        "F15"
      ]
    },
    {
      "type": "har-summary",
      "path": "evidence/song-summary.json",
      "caption": "song summary",
      "findingIds": []
    },
    {
      "type": "trace-summary",
      "path": "evidence/song-trace-summary.json",
      "caption": "song trace summary",
      "findingIds": [
        "F07"
      ]
    },
    {
      "type": "trace",
      "path": "evidence/song-trace.json",
      "caption": "song trace",
      "findingIds": []
    },
    {
      "type": "har",
      "path": "evidence/song.har",
      "caption": "song",
      "findingIds": []
    },
    {
      "type": "screenshot",
      "path": "evidence/song.png",
      "caption": "song",
      "findingIds": [
        "F02"
      ]
    },
    {
      "type": "other",
      "path": "evidence/trackers.json",
      "caption": "trackers",
      "findingIds": [
        "F13"
      ]
    }
  ],
  "config": {
    "loaded": false
  },
  "coverage": {
    "catalogVersion": "modern-web-guidance@0.0.172",
    "catalogChecksum": "sha256:78ccfdb2d483f4c57d9dafed80fd86c6265585a56457c8dcfddc254b80fb44d7",
    "expected": 58,
    "recorded": 58,
    "judged": 58,
    "blocked": 0,
    "notRun": 0,
    "missing": 0,
    "unknown": 0,
    "duplicates": 0,
    "complete": true
  },
  "checkOutcomes": [
    {
      "principleId": "respect-user-preferences",
      "checkId": "respects-color-scheme",
      "status": "pass",
      "confidence": "high",
      "method": "Preference probe",
      "evidence": "Under prefers-color-scheme: dark, html color-scheme was dark and body rendered rgb(15,15,15) with rgb(232,232,232) text.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/preferences-probe.json"
      ]
    },
    {
      "principleId": "respect-user-preferences",
      "checkId": "respects-reduced-motion",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "With prefers-reduced-motion: reduce matched, the preference probe still found four running skeletonAnimation instances at 500 ms and found no prefers-reduced-motion rule in accessible page CSS.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/preferences-probe.json"
      ],
      "findingIds": [
        "F03"
      ]
    },
    {
      "principleId": "respect-user-preferences",
      "checkId": "respects-contrast",
      "status": "issues",
      "confidence": "medium",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "prefers-contrast: more matched in the probe, but accessible CSS contained no prefers-contrast or forced-colors rules; Lighthouse also found baseline contrast failures.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/preferences-probe.json",
        "evidence/lighthouse-home.json"
      ],
      "findingIds": [
        "F20"
      ]
    },
    {
      "principleId": "implement-natural-interactions",
      "checkId": "view-transitions",
      "status": "issues",
      "confidence": "medium",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "DOM/CSS inspection across the representative templates found no view-transition CSS or navigation opt-in, while the site exposes many cross-document routes and interactive states.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/home-dom.json",
        "evidence/song-probe.json"
      ],
      "findingIds": [
        "F04"
      ]
    },
    {
      "principleId": "implement-natural-interactions",
      "checkId": "scroll-driven-animations",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and applicability judgement across representative paths",
      "evidence": "No scroll-linked animation or scrollytelling surface was present on the representative paths, so there was no scroll animation implementation to assess.",
      "reason": "No scroll-linked animation or scrollytelling surface was present on the representative paths, so there was no scroll animation implementation to assess."
    },
    {
      "principleId": "implement-natural-interactions",
      "checkId": "physical-gestures",
      "status": "issues",
      "confidence": "medium",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The homepage presents carousel-like featured and playlist regions, but inspected CSS contains no scroll-snap or related declarative gesture treatment.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home.png",
        "evidence/home-dom.json"
      ],
      "findingIds": [
        "F21"
      ]
    },
    {
      "principleId": "provide-guided-navigation",
      "checkId": "scroll-state-aware-chrome",
      "status": "issues",
      "confidence": "medium",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The long song and listing templates have fixed header/navigation structures, but inspected CSS contains no scroll-state container query or scroll progress treatment.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/song-probe.json",
        "evidence/listing-probe.json"
      ],
      "findingIds": [
        "F05"
      ]
    },
    {
      "principleId": "provide-guided-navigation",
      "checkId": "anchored-positioning",
      "status": "issues",
      "confidence": "medium",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The rendered page exposes hundreds of role=tooltip and role=button nodes from site and consent UI, but CSS/DOM inspection found no anchor-name, position-anchor, or position-try usage.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/home-dom.json"
      ],
      "findingIds": [
        "F06"
      ]
    },
    {
      "principleId": "provide-guided-navigation",
      "checkId": "directs-attention",
      "status": "pass",
      "confidence": "high",
      "method": "Screenshot and DOM review",
      "evidence": "Descriptive nav labels, page-specific H1s, artist/song hierarchy and clear 404 copy orient users on each representative template.",
      "pathIds": [
        "home",
        "song",
        "artist",
        "listing",
        "error"
      ],
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/song-probe.json",
        "evidence/error-404.json"
      ]
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "checkId": "no-intrusive-interruptions",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "Initial screenshots of the homepage, song, artist, listing, plan destination, and 404 all show a large modal covering the primary content before any interaction.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home.png",
        "evidence/song.png",
        "evidence/artist.png",
        "evidence/listing.png",
        "evidence/plans.png",
        "evidence/error-404.png"
      ],
      "findingIds": [
        "F02"
      ]
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "checkId": "semantic-dismissible-primitives",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The rendered DOM contains four role=dialog regions and hundreds of role-based controls/tooltips, but probes found zero native dialog, popover, or details elements.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/consent-probe.json"
      ],
      "findingIds": [
        "F17"
      ]
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "checkId": "reduced-chrome",
      "status": "pass",
      "confidence": "high",
      "method": "Visual review",
      "evidence": "Behind the consent layer, lyric and ranking templates use restrained dark chrome and give the main area to content.",
      "pathIds": [
        "song",
        "listing"
      ],
      "artifacts": [
        "evidence/song.png",
        "evidence/listing.png"
      ]
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "checkId": "responsive-no-horizontal-scroll",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "At 360x800, layout captures on all five templates report 586 to 598 px of horizontal overflow. The mobile song screenshot shows the consent panel beginning at x=221 with action buttons clipped beyond the right edge.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-layout-mobile.json",
        "evidence/song-layout-mobile.json",
        "evidence/song-content-mobile.png"
      ],
      "findingIds": [
        "F01"
      ]
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "checkId": "component-level-responsiveness",
      "status": "issues",
      "confidence": "medium",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "CSS inspection across home, song, artist and listing templates found no @container or container-type usage despite cards and ranking components appearing in differently sized regions.",
      "pathIds": [
        "listing"
      ],
      "artifacts": [
        "evidence/home-dom.json",
        "evidence/listing-probe.json"
      ],
      "findingIds": [
        "F18"
      ]
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "checkId": "input-modality-aware",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "Programmatically focusing the first visible button produced outline: none and no box shadow on all probes. Lighthouse fails target-size on the song page, and the probe counted 63 rendered interactive targets below 24 px in one dimension.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/song-probe.json",
        "evidence/lighthouse-song.json"
      ],
      "findingIds": [
        "F11"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "checkId": "clear-purpose-and-primary-action",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "Initial screenshots of the homepage, song, artist, listing, plan destination, and 404 all show a large modal covering the primary content before any interaction.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home.png",
        "evidence/song.png",
        "evidence/artist.png",
        "evidence/listing.png",
        "evidence/plans.png",
        "evidence/error-404.png"
      ],
      "findingIds": [
        "F02"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "checkId": "primary-flow-completion",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The audited Assine destination /planos.html ended at the homepage, with homepage title, canonical URL and content. The user receives neither pricing nor an explanation or recovery path.",
      "pathIds": [
        "plans"
      ],
      "artifacts": [
        "evidence/plans.png",
        "evidence/plans-probe.json"
      ],
      "findingIds": [
        "F16"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "checkId": "clear-system-state-and-recovery",
      "status": "pass",
      "confidence": "high",
      "method": "404 exercise",
      "evidence": "The unknown route rendered explicit Portuguese not-found messaging and routes back to available content, rather than a blank shell.",
      "pathIds": [
        "error"
      ],
      "artifacts": [
        "evidence/error-404.png",
        "evidence/error-404.json"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "good-core-web-vitals",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "Mobile Lighthouse measured LCP at 7.5 s on the homepage and 11.1 s on the song page, with performance scores of 0.62 and 0.59. The desktop trace still measured song LCP at 2.96 s.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/lighthouse-home.json",
        "evidence/lighthouse-song.json",
        "evidence/song-trace-summary.json"
      ],
      "findingIds": [
        "F07"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "visual-stability",
      "status": "pass",
      "confidence": "high",
      "method": "Layout and Lighthouse",
      "evidence": "CLS was about 0.002 in mobile layout observers and about 0.021 in Lighthouse on both primary templates, within the good range.",
      "pathIds": [
        "home",
        "song"
      ],
      "artifacts": [
        "evidence/home-layout-mobile.json",
        "evidence/song-layout-mobile.json",
        "evidence/lighthouse-home.json"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "efficient-main-thread",
      "status": "pass",
      "confidence": "high",
      "method": "Trace and Lighthouse",
      "evidence": "The 7.5 s desktop song trace recorded zero long tasks and 0 ms TBT; mobile Lighthouse TBT was 240 to 290 ms, indicating moderate but not severe blocking.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/song-trace-summary.json",
        "evidence/lighthouse-song.json"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "efficient-resource-delivery",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "Lighthouse estimates 455 KiB unused JavaScript and 67 KiB unused CSS. The homepage HAR transferred 1.12 MB of script, including ad, tag-manager and consent dependencies.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/lighthouse-details.json",
        "evidence/home-summary.json",
        "evidence/home.har"
      ],
      "findingIds": [
        "F08"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "checkId": "trim-unused-and-duplicate-code",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "Lighthouse estimates 455 KiB unused JavaScript and 67 KiB unused CSS. The homepage HAR transferred 1.12 MB of script, including ad, tag-manager and consent dependencies.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/lighthouse-details.json",
        "evidence/home-summary.json",
        "evidence/home.har"
      ],
      "findingIds": [
        "F08"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "names-roles-labels",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "Lighthouse reports unlabelled form controls on both pages, visible-label/accessibility-name mismatch on home, and invalid list structure. The song probe found ten unlabelled controls.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/lighthouse-home.json",
        "evidence/lighthouse-song.json",
        "evidence/song-probe.json"
      ],
      "findingIds": [
        "F09"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "sufficient-contrast",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "Lighthouse color-contrast audits fail on both homepage and song templates.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/lighthouse-home.json",
        "evidence/lighthouse-song.json"
      ],
      "findingIds": [
        "F10"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "structure-and-focus",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "Programmatically focusing the first visible button produced outline: none and no box shadow on all probes. Lighthouse fails target-size on the song page, and the probe counted 63 rendered interactive targets below 24 px in one dimension.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/song-probe.json",
        "evidence/lighthouse-song.json"
      ],
      "findingIds": [
        "F11"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "legible-text",
      "status": "pass",
      "confidence": "high",
      "method": "Visual and computed review",
      "evidence": "Lyrics use large, high-line-height text with a readable measure; no clipping was observed in the content itself outside the consent defect.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/song-content-mobile.png",
        "evidence/song-probe.json"
      ]
    },
    {
      "principleId": "be-inclusive",
      "checkId": "zoom-reflow-targets-and-media",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "At 360x800, layout captures on all five templates report 586 to 598 px of horizontal overflow. The mobile song screenshot shows the consent panel beginning at x=221 with action buttons clipped beyond the right edge. Programmatically focusing the first visible button produced outline: none and no box shadow on all probes. Lighthouse fails target-size on the song page, and the probe counted 63 rendered interactive targets below 24 px in one dimension.",
      "pathIds": [
        "home",
        "song"
      ],
      "artifacts": [
        "evidence/home-layout-mobile.json",
        "evidence/song-layout-mobile.json",
        "evidence/song-content-mobile.png",
        "evidence/song-probe.json",
        "evidence/lighthouse-song.json"
      ],
      "findingIds": [
        "F01",
        "F11"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "checkId": "no-console-errors",
      "status": "pass",
      "confidence": "high",
      "method": "Lighthouse",
      "evidence": "Both Lighthouse runs passed the console error audit.",
      "pathIds": [
        "home",
        "song"
      ],
      "artifacts": [
        "evidence/lighthouse-home.json",
        "evidence/lighthouse-song.json"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "checkId": "sound-document-and-assets",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The image probe found 22 homepage images without dimensions, 22 without srcset, 37 below-fold images not lazy-loaded, 3 oversized images, and no modern-format images. The song page has 14 of 15 images without dimensions.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-images.json",
        "evidence/song-images.json"
      ],
      "findingIds": [
        "F14"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "checkId": "browser-platform-hygiene",
      "status": "pass",
      "confidence": "high",
      "method": "Lighthouse",
      "evidence": "Lighthouse passed deprecations, source maps, BFCache, inspector issues, paste prevention, and permission-on-load audits.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/lighthouse-details.json"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "title-and-description",
      "status": "pass",
      "confidence": "high",
      "method": "DOM and crawler comparison",
      "evidence": "Homepage and song pages have unique descriptive titles and meta descriptions in raw and rendered HTML.",
      "pathIds": [
        "home",
        "song"
      ],
      "artifacts": [
        "evidence/discover-home.json",
        "evidence/discover-song.json"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "crawlable-and-mobile-friendly",
      "status": "pass",
      "confidence": "high",
      "method": "DOM, robots and Lighthouse",
      "evidence": "Links use href, viewport meta is present, robots.txt is valid, and Lighthouse SEO scored 1.0.",
      "pathIds": [
        "home",
        "song"
      ],
      "artifacts": [
        "evidence/recon.json",
        "evidence/lighthouse-home.json"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "canonical-and-indexing-signals",
      "status": "pass",
      "confidence": "high",
      "method": "Metadata and fetch probes",
      "evidence": "Representative pages returned 200, expose valid canonical URLs, robots points to a sitemap index that returned 200, and Lighthouse canonical/robots/hreflang audits passed.",
      "pathIds": [
        "home",
        "song"
      ],
      "artifacts": [
        "evidence/manifest-sitemap.json",
        "evidence/lighthouse-details.json"
      ]
    },
    {
      "principleId": "be-discoverable",
      "checkId": "structured-and-shareable-metadata",
      "status": "pass",
      "confidence": "high",
      "method": "DOM probe",
      "evidence": "Home and song expose Open Graph tags and JSON-LD; the song page contained three JSON-LD blocks aligned with visible song/entity content.",
      "pathIds": [
        "home",
        "song"
      ],
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/song-probe.json"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "secure-transport-and-headers",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The headers probe found no CSP, X-Content-Type-Options, Referrer-Policy, or Permissions-Policy. Six of ten cookies were flagged insecure; analytics and consent cookies use SameSite=None without Secure and some persist for 390 to 400 days.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/headers.json",
        "evidence/cookies.json"
      ],
      "findingIds": [
        "F12"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "data-minimisation-and-third-parties",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The tracker probe found 15 third-party origins and four known tracker domains. The homepage HAR attributes 55 of 59 requests and 1.48 MB of 1.50 MB transferred to third parties.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/trackers.json",
        "evidence/home-summary.json",
        "evidence/home.har"
      ],
      "findingIds": [
        "F13"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "in-context-permissions-and-modern-auth",
      "status": "pass",
      "confidence": "high",
      "method": "Lighthouse permission checks",
      "evidence": "No geolocation or notification prompt fired on load. Authentication was not required for the audited lyrics journey.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/lighthouse-details.json"
      ]
    },
    {
      "principleId": "be-private-and-secure",
      "checkId": "defensive-browser-policies",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The headers probe found no CSP, X-Content-Type-Options, Referrer-Policy, or Permissions-Policy. Six of ten cookies were flagged insecure; analytics and consent cookies use SameSite=None without Secure and some persist for 390 to 400 days.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/headers.json",
        "evidence/cookies.json"
      ],
      "findingIds": [
        "F12"
      ]
    },
    {
      "principleId": "be-resilient",
      "checkId": "progressive-enhancement",
      "status": "pass",
      "confidence": "high",
      "method": "Raw HTML comparison",
      "evidence": "Raw server HTML contains 72% of homepage and 76% of song rendered content words, including title, H1 and description; neither page is a JS shell.",
      "pathIds": [
        "home",
        "song"
      ],
      "artifacts": [
        "evidence/discover-home.json",
        "evidence/discover-song.json"
      ]
    },
    {
      "principleId": "be-resilient",
      "checkId": "resilient-runtime-behaviour",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "At 360x800, layout captures on all five templates report 586 to 598 px of horizontal overflow. The mobile song screenshot shows the consent panel beginning at x=221 with action buttons clipped beyond the right edge.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-layout-mobile.json",
        "evidence/song-layout-mobile.json",
        "evidence/song-content-mobile.png"
      ],
      "findingIds": [
        "F01"
      ]
    },
    {
      "principleId": "be-resilient",
      "checkId": "offline-and-installable",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "A standalone web app manifest with start_url and icons is linked, but both navigator.serviceWorker.controller and getRegistrations() were empty.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/manifest-sitemap.json",
        "evidence/song-probe.json"
      ],
      "findingIds": [
        "F15"
      ]
    },
    {
      "principleId": "be-resilient",
      "checkId": "network-and-http-failure-states",
      "status": "pass",
      "confidence": "high",
      "method": "404 exercise",
      "evidence": "A deliberately unknown route rendered a meaningful not-found page with recovery links rather than a blank shell or infinite spinner.",
      "pathIds": [
        "error"
      ],
      "artifacts": [
        "evidence/error-404.png",
        "evidence/error-404.json"
      ]
    },
    {
      "principleId": "be-internationalised",
      "checkId": "lang-dir-and-logical-properties",
      "status": "pass",
      "confidence": "high",
      "method": "DOM and locale UI probe",
      "evidence": "All representative documents declare lang=pt-br and dir=ltr, and the site exposes region/language controls. No bidi breakage was visible in sampled English lyrics.",
      "pathIds": [
        "home",
        "song"
      ],
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/song-probe.json"
      ]
    },
    {
      "principleId": "be-internationalised",
      "checkId": "locale-aware-data",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and applicability judgement across representative paths",
      "evidence": "Representative lyric, artist and ranking pages did not render locale-sensitive dates, currencies or numeric formats requiring Intl formatting.",
      "reason": "Representative lyric, artist and ranking pages did not render locale-sensitive dates, currencies or numeric formats requiring Intl formatting."
    },
    {
      "principleId": "be-internationalised",
      "checkId": "time-zone-correctness",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and applicability judgement across representative paths",
      "evidence": "No event scheduling, recurring intervals, timestamps or time-zone-sensitive data appeared on the representative paths.",
      "reason": "No event scheduling, recurring intervals, timestamps or time-zone-sensitive data appeared on the representative paths."
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "no-dark-patterns",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The initial consent screenshot offers a prominent Consent button and Manage options, but no Reject all action. Rejecting requires additional navigation while accepting is one click.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home.png",
        "evidence/consent-buttons.json"
      ],
      "findingIds": [
        "F19"
      ]
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "humane-error-handling",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and applicability judgement across representative paths",
      "evidence": "No visible required-input submission form was present on the representative public paths; the form validation probe found zero visible required fields.",
      "reason": "No visible required-input submission form was present on the representative public paths; the form validation probe found zero visible required fields."
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "trustworthy-input-assistance",
      "status": "pass",
      "confidence": "high",
      "method": "DOM form probe",
      "evidence": "The persistent search input has an accessible label, and theme, locale and language choices are labelled radio controls. No address/payment form was reached because the plans route failed separately.",
      "pathIds": [
        "home",
        "song"
      ],
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/song-probe.json"
      ]
    },
    {
      "principleId": "be-trustworthy",
      "checkId": "safe-commercial-and-account-flows",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The audited Assine destination /planos.html ended at the homepage, with homepage title, canonical URL and content. The user receives neither pricing nor an explanation or recovery path.",
      "pathIds": [
        "plans"
      ],
      "artifacts": [
        "evidence/plans.png",
        "evidence/plans-probe.json"
      ],
      "findingIds": [
        "F16"
      ]
    },
    {
      "principleId": "be-sustainable",
      "checkId": "optimised-assets",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The image probe found 22 homepage images without dimensions, 22 without srcset, 37 below-fold images not lazy-loaded, 3 oversized images, and no modern-format images. The song page has 14 of 15 images without dimensions.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/home-images.json",
        "evidence/song-images.json"
      ],
      "findingIds": [
        "F14"
      ]
    },
    {
      "principleId": "be-sustainable",
      "checkId": "no-wasteful-work",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "Lighthouse estimates 455 KiB unused JavaScript and 67 KiB unused CSS. The homepage HAR transferred 1.12 MB of script, including ad, tag-manager and consent dependencies. The tracker probe found 15 third-party origins and four known tracker domains. The homepage HAR attributes 55 of 59 requests and 1.48 MB of 1.50 MB transferred to third parties.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/lighthouse-details.json",
        "evidence/home-summary.json",
        "evidence/home.har",
        "evidence/trackers.json"
      ],
      "findingIds": [
        "F08",
        "F13"
      ]
    },
    {
      "principleId": "be-sustainable",
      "checkId": "third-party-and-media-budget",
      "status": "issues",
      "confidence": "high",
      "method": "Targeted visual, DOM, network, layout, Lighthouse or state probe as recorded in linked findings",
      "evidence": "The tracker probe found 15 third-party origins and four known tracker domains. The homepage HAR attributes 55 of 59 requests and 1.48 MB of 1.50 MB transferred to third parties.",
      "pathIds": [
        "home"
      ],
      "artifacts": [
        "evidence/trackers.json",
        "evidence/home-summary.json",
        "evidence/home.har"
      ],
      "findingIds": [
        "F13"
      ]
    },
    {
      "principleId": "be-agent-ready",
      "checkId": "structured-agent-capabilities",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and applicability judgement across representative paths",
      "evidence": "No declared agent-facing intent or transactional tool surface was found; this emerging capability is not applicable to the audited public content experience.",
      "reason": "No declared agent-facing intent or transactional tool surface was found; this emerging capability is not applicable to the audited public content experience."
    },
    {
      "principleId": "be-agent-ready",
      "checkId": "on-device-inference",
      "status": "not-applicable",
      "confidence": "high",
      "method": "Recon and applicability judgement across representative paths",
      "evidence": "The audited music/lyrics experience has no declared on-device inference feature or task that requires it.",
      "reason": "The audited music/lyrics experience has no declared on-device inference feature or task that requires it."
    },
    {
      "principleId": "be-memory-efficient",
      "checkId": "no-leak-under-repeated-interaction",
      "status": "pass",
      "confidence": "high",
      "method": "Heap before/after",
      "evidence": "After ten menu open/close attempts, heap node count fell from 637,450 to 599,845 and self size from 35.37 MB to 34.56 MB; no retained-growth signal appeared.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/heap-baseline.json",
        "evidence/heap-post.json"
      ]
    },
    {
      "principleId": "be-memory-efficient",
      "checkId": "bounded-footprint",
      "status": "pass",
      "confidence": "high",
      "method": "Heap summary",
      "evidence": "The song page retained about 34 to 35 MB self size after load, proportionate to a media/content page though the consent system contributes substantial DOM.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/heap-baseline.json",
        "evidence/heap-post.json"
      ]
    },
    {
      "principleId": "be-memory-efficient",
      "checkId": "no-detached-dom-or-unbounded-listeners",
      "status": "pass",
      "confidence": "high",
      "method": "Heap constructor comparison",
      "evidence": "Neither baseline nor post snapshot summary contained Detached* constructors, and object/node totals did not grow after repetition.",
      "pathIds": [
        "song"
      ],
      "artifacts": [
        "evidence/heap-baseline.json",
        "evidence/heap-post.json"
      ]
    }
  ],
  "principleOutcomes": [
    {
      "principleId": "respect-user-preferences",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F03",
        "F20"
      ]
    },
    {
      "principleId": "implement-natural-interactions",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F04",
        "F21"
      ]
    },
    {
      "principleId": "provide-guided-navigation",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F05",
        "F06"
      ]
    },
    {
      "principleId": "maximize-content-reduce-noise",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F02",
        "F17"
      ]
    },
    {
      "principleId": "adapt-to-the-form-factor",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F01",
        "F18",
        "F11"
      ]
    },
    {
      "principleId": "support-core-task-success",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F02",
        "F16"
      ]
    },
    {
      "principleId": "be-fast-and-stable",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F07",
        "F08"
      ]
    },
    {
      "principleId": "be-inclusive",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F09",
        "F10",
        "F11",
        "F01"
      ]
    },
    {
      "principleId": "follow-best-practices",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F14"
      ]
    },
    {
      "principleId": "be-discoverable",
      "expectation": "default",
      "status": "pass"
    },
    {
      "principleId": "be-private-and-secure",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F12",
        "F13"
      ]
    },
    {
      "principleId": "be-resilient",
      "expectation": "contextual",
      "status": "issues",
      "findingIds": [
        "F01",
        "F15"
      ]
    },
    {
      "principleId": "be-internationalised",
      "expectation": "contextual",
      "status": "pass"
    },
    {
      "principleId": "be-trustworthy",
      "expectation": "default",
      "status": "issues",
      "findingIds": [
        "F19",
        "F16"
      ]
    },
    {
      "principleId": "be-sustainable",
      "expectation": "contextual",
      "status": "issues",
      "findingIds": [
        "F14",
        "F08",
        "F13"
      ]
    },
    {
      "principleId": "be-agent-ready",
      "expectation": "contextual",
      "status": "not-applicable",
      "reason": "All checks were judged not applicable to the audited site intent and surfaces."
    },
    {
      "principleId": "be-memory-efficient",
      "expectation": "default",
      "status": "pass"
    }
  ],
  "paths": [
    {
      "id": "home",
      "description": "Homepage and search/discovery entry point; represents the primary landing template.",
      "url": "https://www.letras.mus.br/",
      "conditions": [
        "desktop",
        "viewport: 360x800",
        "prefers-color-scheme: dark",
        "prefers-reduced-motion: reduce",
        "prefers-contrast: more",
        "no JavaScript crawler"
      ],
      "result": "issues"
    },
    {
      "id": "song",
      "description": "Wonderwall lyric detail and media/player surface; represents the primary content task.",
      "url": "https://www.letras.mus.br/oasis/28995/",
      "conditions": [
        "desktop",
        "viewport: 360x800",
        "no JavaScript crawler",
        "repeated menu interaction"
      ],
      "result": "issues"
    },
    {
      "id": "artist",
      "description": "Oasis artist detail; represents entity/detail navigation.",
      "url": "https://www.letras.mus.br/oasis/",
      "conditions": [
        "desktop",
        "viewport: 360x800"
      ],
      "result": "issues"
    },
    {
      "id": "listing",
      "description": "Most-accessed songs; represents long listing/index pages.",
      "url": "https://www.letras.mus.br/mais-acessadas/musicas/",
      "conditions": [
        "desktop",
        "viewport: 360x800"
      ],
      "result": "issues"
    },
    {
      "id": "plans",
      "description": "Subscription call-to-action destination; represents the commercial flow. It redirected to the homepage.",
      "url": "https://www.letras.mus.br/planos.html",
      "conditions": [
        "desktop",
        "viewport: 360x800"
      ],
      "result": "failed"
    },
    {
      "id": "error",
      "description": "Deliberately unknown route used to inspect the HTTP/error recovery surface.",
      "url": "https://www.letras.mus.br/definitely-not-a-real-path-web-uplift/",
      "conditions": [
        "desktop"
      ],
      "result": "issues"
    }
  ],
  "findings": [
    {
      "id": "F01",
      "severity": "critical",
      "confidence": "high",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "adapt-to-the-form-factor",
      "principleCheckId": "responsive-no-horizontal-scroll",
      "guidanceId": "css-layout",
      "summary": "The consent interface breaks the mobile viewport and makes its actions hard to reach.",
      "evidence": "At 360x800, layout captures on all five templates report 586 to 598 px of horizontal overflow. The mobile song screenshot shows the consent panel beginning at x=221 with action buttons clipped beyond the right edge.",
      "artifacts": [
        "evidence/home-layout-mobile.json",
        "evidence/song-layout-mobile.json",
        "evidence/song-content-mobile.png"
      ],
      "suggestedFix": "Make the consent surface width fluid with max-inline-size: min(100% - 2rem, ...), wrap content and actions, and test it at 320 to 400 CSS px without changing the layout viewport.",
      "effort": "medium",
      "guidanceCategory": "css-layout"
    },
    {
      "id": "F02",
      "severity": "high",
      "confidence": "high",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "maximize-content-reduce-noise",
      "principleCheckId": "no-intrusive-interruptions",
      "guidanceId": "light-dismiss-a-dialog",
      "summary": "A blocking consent interstitial obscures the core content on every audited path.",
      "evidence": "Initial screenshots of the homepage, song, artist, listing, plan destination, and 404 all show a large modal covering the primary content before any interaction.",
      "artifacts": [
        "evidence/home.png",
        "evidence/song.png",
        "evidence/artist.png",
        "evidence/listing.png",
        "evidence/plans.png",
        "evidence/error-404.png"
      ],
      "suggestedFix": "Use a compact, accessible consent surface that keeps essential content available, provides equal accept and reject actions, and preserves a clear way to revisit choices.",
      "effort": "medium",
      "guidanceCategory": "user-experience"
    },
    {
      "id": "F03",
      "severity": "medium",
      "confidence": "high",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "respect-user-preferences",
      "principleCheckId": "respects-reduced-motion",
      "guidanceId": "accessibility",
      "summary": "Animations continue when reduced motion is requested.",
      "evidence": "With prefers-reduced-motion: reduce matched, the preference probe still found four running skeletonAnimation instances at 500 ms and found no prefers-reduced-motion rule in accessible page CSS.",
      "artifacts": [
        "evidence/preferences-probe.json"
      ],
      "suggestedFix": "Add a reduced-motion media query that removes non-essential skeleton and transition animation while preserving immediate state feedback.",
      "effort": "small",
      "guidanceCategory": "accessibility"
    },
    {
      "id": "F04",
      "severity": "low",
      "confidence": "medium",
      "pathId": "song",
      "url": "https://www.letras.mus.br/oasis/28995/",
      "principleId": "implement-natural-interactions",
      "principleCheckId": "view-transitions",
      "guidanceId": "cross-document-transitions",
      "summary": "Route and state changes have no View Transition integration.",
      "evidence": "DOM/CSS inspection across the representative templates found no view-transition CSS or navigation opt-in, while the site exposes many cross-document routes and interactive states.",
      "artifacts": [
        "evidence/home-dom.json",
        "evidence/song-probe.json"
      ],
      "suggestedFix": "Progressively enhance same-origin navigation with cross-document View Transitions and a reduced-motion fallback.",
      "effort": "medium",
      "guidanceCategory": "user-experience"
    },
    {
      "id": "F05",
      "severity": "low",
      "confidence": "medium",
      "pathId": "song",
      "url": "https://www.letras.mus.br/oasis/28995/",
      "principleId": "provide-guided-navigation",
      "principleCheckId": "scroll-state-aware-chrome",
      "guidanceId": "shrinking-header-on-scroll",
      "summary": "Long lyric and listing pages do not expose scroll-state-aware navigation chrome.",
      "evidence": "The long song and listing templates have fixed header/navigation structures, but inspected CSS contains no scroll-state container query or scroll progress treatment.",
      "artifacts": [
        "evidence/song-probe.json",
        "evidence/listing-probe.json"
      ],
      "suggestedFix": "Add a lightweight scroll progress or scrolled-state treatment for long lyrics and rankings, with reduced-motion support.",
      "effort": "medium",
      "guidanceCategory": "user-experience"
    },
    {
      "id": "F06",
      "severity": "low",
      "confidence": "medium",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "provide-guided-navigation",
      "principleCheckId": "anchored-positioning",
      "guidanceId": "position-aware-tooltips",
      "summary": "Overlay positioning does not use anchor positioning or fallback positions.",
      "evidence": "The rendered page exposes hundreds of role=tooltip and role=button nodes from site and consent UI, but CSS/DOM inspection found no anchor-name, position-anchor, or position-try usage.",
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/home-dom.json"
      ],
      "suggestedFix": "Use CSS anchor positioning with position-try fallbacks for menus and tooltips where browser support permits, retaining the current placement as fallback.",
      "effort": "medium",
      "guidanceCategory": "user-experience"
    },
    {
      "id": "F07",
      "severity": "high",
      "confidence": "high",
      "pathId": "song",
      "url": "https://www.letras.mus.br/oasis/28995/",
      "principleId": "be-fast-and-stable",
      "principleCheckId": "good-core-web-vitals",
      "guidanceId": "performance",
      "summary": "Largest Contentful Paint is slow on both primary templates.",
      "evidence": "Mobile Lighthouse measured LCP at 7.5 s on the homepage and 11.1 s on the song page, with performance scores of 0.62 and 0.59. The desktop trace still measured song LCP at 2.96 s.",
      "artifacts": [
        "evidence/lighthouse-home.json",
        "evidence/lighthouse-song.json",
        "evidence/song-trace-summary.json"
      ],
      "suggestedFix": "Identify the LCP element, make it discoverable from initial HTML, prioritise it, and defer ad/CMP and other non-critical work until after primary content.",
      "effort": "large",
      "guidanceCategory": "performance"
    },
    {
      "id": "F08",
      "severity": "high",
      "confidence": "high",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "be-fast-and-stable",
      "principleCheckId": "trim-unused-and-duplicate-code",
      "guidanceId": "identify-heavy-scripts",
      "summary": "The page ships substantial unused code and ad-related script weight.",
      "evidence": "Lighthouse estimates 455 KiB unused JavaScript and 67 KiB unused CSS. The homepage HAR transferred 1.12 MB of script, including ad, tag-manager and consent dependencies.",
      "artifacts": [
        "evidence/lighthouse-details.json",
        "evidence/home-summary.json",
        "evidence/home.har"
      ],
      "suggestedFix": "Code-split template features, remove unused styles, and load advertising, analytics, and consent vendor modules only after the relevant choice or idle boundary.",
      "effort": "large",
      "guidanceCategory": "performance"
    },
    {
      "id": "F09",
      "severity": "high",
      "confidence": "high",
      "pathId": "song",
      "url": "https://www.letras.mus.br/oasis/28995/",
      "principleId": "be-inclusive",
      "principleCheckId": "names-roles-labels",
      "guidanceId": "accessibility",
      "summary": "Form controls and accessibility structure contain label and role failures.",
      "evidence": "Lighthouse reports unlabelled form controls on both pages, visible-label/accessibility-name mismatch on home, and invalid list structure. The song probe found ten unlabelled controls.",
      "artifacts": [
        "evidence/lighthouse-home.json",
        "evidence/lighthouse-song.json",
        "evidence/song-probe.json"
      ],
      "suggestedFix": "Give each interactive control a programmatic label matching its visible text, repair list semantics, and verify the accessibility tree with axe and screen-reader smoke tests.",
      "effort": "medium",
      "guidanceCategory": "accessibility"
    },
    {
      "id": "F10",
      "severity": "high",
      "confidence": "high",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "be-inclusive",
      "principleCheckId": "sufficient-contrast",
      "guidanceId": "accessibility",
      "summary": "Text and controls fail minimum contrast.",
      "evidence": "Lighthouse color-contrast audits fail on both homepage and song templates.",
      "artifacts": [
        "evidence/lighthouse-home.json",
        "evidence/lighthouse-song.json"
      ],
      "suggestedFix": "Adjust foreground and surface tokens to meet WCAG contrast in every theme, including dimmed and consent states.",
      "effort": "small",
      "guidanceCategory": "accessibility"
    },
    {
      "id": "F11",
      "severity": "high",
      "confidence": "high",
      "pathId": "song",
      "url": "https://www.letras.mus.br/oasis/28995/",
      "principleId": "be-inclusive",
      "principleCheckId": "structure-and-focus",
      "guidanceId": "accessibility",
      "summary": "Keyboard focus is not visibly indicated and many controls are too small.",
      "evidence": "Programmatically focusing the first visible button produced outline: none and no box shadow on all probes. Lighthouse fails target-size on the song page, and the probe counted 63 rendered interactive targets below 24 px in one dimension.",
      "artifacts": [
        "evidence/song-probe.json",
        "evidence/lighthouse-song.json"
      ],
      "suggestedFix": "Add a strong :focus-visible treatment and enlarge or space touch targets to at least the WCAG target-size floor, preferably 44 CSS px for primary controls.",
      "effort": "medium",
      "guidanceCategory": "accessibility"
    },
    {
      "id": "F12",
      "severity": "high",
      "confidence": "high",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "be-private-and-secure",
      "principleCheckId": "secure-transport-and-headers",
      "guidanceId": "security",
      "summary": "Important browser security headers and cookie protections are missing.",
      "evidence": "The headers probe found no CSP, X-Content-Type-Options, Referrer-Policy, or Permissions-Policy. Six of ten cookies were flagged insecure; analytics and consent cookies use SameSite=None without Secure and some persist for 390 to 400 days.",
      "artifacts": [
        "evidence/headers.json",
        "evidence/cookies.json"
      ],
      "suggestedFix": "Deploy a restrictive CSP, nosniff, Referrer-Policy and Permissions-Policy, and mark every SameSite=None cookie Secure. Shorten analytics/consent retention where possible.",
      "effort": "medium",
      "guidanceCategory": "security"
    },
    {
      "id": "F13",
      "severity": "high",
      "confidence": "high",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "be-private-and-secure",
      "principleCheckId": "data-minimisation-and-third-parties",
      "guidanceId": "privacy",
      "summary": "Third-party tracking dominates the initial network load before a choice is made.",
      "evidence": "The tracker probe found 15 third-party origins and four known tracker domains. The homepage HAR attributes 55 of 59 requests and 1.48 MB of 1.50 MB transferred to third parties.",
      "artifacts": [
        "evidence/trackers.json",
        "evidence/home-summary.json",
        "evidence/home.har"
      ],
      "suggestedFix": "Block non-essential analytics and advertising until consent, reduce vendors, batch necessary telemetry, and set a strict third-party request/byte budget.",
      "effort": "large",
      "guidanceCategory": "privacy"
    },
    {
      "id": "F14",
      "severity": "medium",
      "confidence": "high",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "be-sustainable",
      "principleCheckId": "optimised-assets",
      "guidanceId": "optimize-image-priority",
      "summary": "Images lack responsive delivery and reserved dimensions.",
      "evidence": "The image probe found 22 homepage images without dimensions, 22 without srcset, 37 below-fold images not lazy-loaded, 3 oversized images, and no modern-format images. The song page has 14 of 15 images without dimensions.",
      "artifacts": [
        "evidence/home-images.json",
        "evidence/song-images.json"
      ],
      "suggestedFix": "Add intrinsic dimensions, srcset/sizes, below-fold lazy loading, and AVIF/WebP variants while preserving eager high-priority loading for the LCP image only.",
      "effort": "medium",
      "guidanceCategory": "performance"
    },
    {
      "id": "F15",
      "severity": "medium",
      "confidence": "high",
      "pathId": "song",
      "url": "https://www.letras.mus.br/oasis/28995/",
      "principleId": "be-resilient",
      "principleCheckId": "offline-and-installable",
      "guidanceId": "conditional-async-dependencies",
      "summary": "The app advertises installability but has no active service worker or offline fallback.",
      "evidence": "A standalone web app manifest with start_url and icons is linked, but both navigator.serviceWorker.controller and getRegistrations() were empty.",
      "artifacts": [
        "evidence/manifest-sitemap.json",
        "evidence/song-probe.json"
      ],
      "suggestedFix": "Register a small service worker that precaches an offline shell and preserves previously opened lyrics, with network-first updates when connectivity returns.",
      "effort": "large",
      "guidanceCategory": "performance"
    },
    {
      "id": "F16",
      "severity": "high",
      "confidence": "high",
      "pathId": "plans",
      "url": "https://www.letras.mus.br/planos.html",
      "principleId": "be-trustworthy",
      "principleCheckId": "safe-commercial-and-account-flows",
      "guidanceId": "autofill-payment-form",
      "summary": "The prominent subscription journey does not reach subscription information.",
      "evidence": "The audited Assine destination /planos.html ended at the homepage, with homepage title, canonical URL and content. The user receives neither pricing nor an explanation or recovery path.",
      "artifacts": [
        "evidence/plans.png",
        "evidence/plans-probe.json"
      ],
      "suggestedFix": "Keep the subscription route stable, show pricing and commitments before sign-in/payment, and provide an explicit error/retry state if plans cannot be loaded.",
      "effort": "medium",
      "guidanceCategory": "forms"
    },
    {
      "id": "F17",
      "severity": "medium",
      "confidence": "high",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "maximize-content-reduce-noise",
      "principleCheckId": "semantic-dismissible-primitives",
      "guidanceId": "declarative-dialog-popover-control",
      "summary": "Modal and transient UI is represented with custom role-based structures instead of native primitives.",
      "evidence": "The rendered DOM contains four role=dialog regions and hundreds of role-based controls/tooltips, but probes found zero native dialog, popover, or details elements.",
      "artifacts": [
        "evidence/home-probe.json",
        "evidence/consent-probe.json"
      ],
      "suggestedFix": "Migrate modal flows to dialog and transient menus/tooltips to popover, preserving focus management and light-dismiss behaviour.",
      "effort": "large",
      "guidanceCategory": "user-experience"
    },
    {
      "id": "F18",
      "severity": "low",
      "confidence": "medium",
      "pathId": "listing",
      "url": "https://www.letras.mus.br/mais-acessadas/musicas/",
      "principleId": "adapt-to-the-form-factor",
      "principleCheckId": "component-level-responsiveness",
      "guidanceId": "size-aware-styling",
      "summary": "Reusable content components rely on page-level layout rather than container responsiveness.",
      "evidence": "CSS inspection across home, song, artist and listing templates found no @container or container-type usage despite cards and ranking components appearing in differently sized regions.",
      "artifacts": [
        "evidence/home-dom.json",
        "evidence/listing-probe.json"
      ],
      "suggestedFix": "Introduce container queries for reusable cards, rankings and player controls where their available inline size differs from the viewport.",
      "effort": "medium",
      "guidanceCategory": "user-experience"
    },
    {
      "id": "F19",
      "severity": "medium",
      "confidence": "high",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "be-trustworthy",
      "principleCheckId": "no-dark-patterns",
      "guidanceId": "custom-button-actions",
      "summary": "The first consent layer presents acceptance but no equally direct rejection action.",
      "evidence": "The initial consent screenshot offers a prominent Consent button and Manage options, but no Reject all action. Rejecting requires additional navigation while accepting is one click.",
      "artifacts": [
        "evidence/home.png",
        "evidence/consent-buttons.json"
      ],
      "suggestedFix": "Place equally prominent Accept all and Reject all actions on the first layer, with granular management as a third option.",
      "effort": "small",
      "guidanceCategory": "web-quality"
    },
    {
      "id": "F20",
      "severity": "low",
      "confidence": "medium",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "respect-user-preferences",
      "principleCheckId": "respects-contrast",
      "guidanceId": "adapt-scrollbar-to-contrast-preferences",
      "summary": "No explicit high-contrast or forced-colors adaptation was found.",
      "evidence": "prefers-contrast: more matched in the probe, but accessible CSS contained no prefers-contrast or forced-colors rules; Lighthouse also found baseline contrast failures.",
      "artifacts": [
        "evidence/preferences-probe.json",
        "evidence/lighthouse-home.json"
      ],
      "suggestedFix": "Add forced-colors and prefers-contrast adjustments for essential controls, outlines and scroll affordances, and avoid suppressing system colors.",
      "effort": "small",
      "guidanceCategory": "user-experience"
    },
    {
      "id": "F21",
      "severity": "low",
      "confidence": "medium",
      "pathId": "home",
      "url": "https://www.letras.mus.br/",
      "principleId": "implement-natural-interactions",
      "principleCheckId": "physical-gestures",
      "guidanceId": "carousel-slide-effects",
      "summary": "Carousel and horizontal browsing surfaces do not expose declarative snap behaviour.",
      "evidence": "The homepage presents carousel-like featured and playlist regions, but inspected CSS contains no scroll-snap or related declarative gesture treatment.",
      "artifacts": [
        "evidence/home.png",
        "evidence/home-dom.json"
      ],
      "suggestedFix": "Use overflow scrolling with CSS scroll snap and platform overscroll behaviour for horizontal card rails, retaining button controls for keyboard users.",
      "effort": "medium",
      "guidanceCategory": "user-experience"
    }
  ],
  "taskList": [
    {
      "id": "T01",
      "title": "Repair the consent experience on mobile and stop it obscuring core content",
      "priority": 1,
      "findingIds": [
        "F01",
        "F02",
        "F17",
        "F19"
      ],
      "guidanceId": "css-layout",
      "status": "open"
    },
    {
      "id": "T02",
      "title": "Cut LCP, unused code, and third-party startup cost",
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