fix(player): redesign cleanup pass — sleeve, tonearm, AGC, dead code

Production-readiness pass before merging the Studio Reference redesign
to master.

Audio (backend):
- Reset AGC `_spectrum_ref` envelope on `start()` so a long silent gap
  between sessions doesn't make the first new transients clip at the
  ceiling. Annotated the trade-off (loud transient lifts reference for
  a few seconds afterwards — the price of real loudness).
- Add `tests/test_audio_analyzer.py` with 10 cases: bin-edge layout,
  AGC attack/release asymmetry, lifecycle reset. Skips numpy-dependent
  cases when numpy isn't installed; CI has it.

Vinyl mode dead code removed:
- The toggle button was dropped during the sleeve refactor but the JS
  state, 2 s `setInterval`, `beforeunload` handler, and `applyVinylMode`
  call (commented out in app.js) all stayed. Now properly excised from
  player.js + app.js + window.* exports.
- Stripped the matching `.album-art-container.vinyl*` CSS block and its
  `vinylSpin` keyframes (~95 LoC).

Sleeve + tonearm fixes:
- Removed the duplicate `.now-playing .vinyl-stage` / `.vinyl-label` /
  `.tonearm` block that was overriding the new `.vinyl-stage` rules by
  source order — the uncommitted tonearm geometry never took effect
  because the stale clone won the cascade.
- Tightened tonearm to 36% × 36% at right:-6%, top:26% so the SVG
  bounding box stays right of the sleeve (sleeve right edge ~68%).
  Needle now lands on the visible disc grooves at both rest and
  playing rotations and never overlaps the cover.
- Removed sleeve `transform: rotate(-2.5deg)` + the matching mobile
  `-1.8deg` override; sleeve now sits flat and squared-off.
- Removed the 1px inset hairline on the sleeve and the 1px outline +
  inset highlight on the album art — cleaner, no semitransparent
  border noise.
- Album art inset 5% to expose a cardstock margin around the print
  (using explicit width/height — `inset` shorthand triggered the CSS
  replaced-element rule that uses the image's intrinsic size and blew
  out the grid track).

Mobile + misc:
- Removed mobile tonearm overrides at 720px and 420px — they were
  calibrated for the pre-sleeve geometry and put the needle back over
  the cover on phones; desktop geometry is proportional and works.
- Added `<meta name="mobile-web-app-capable">` alongside the legacy
  Apple variant to silence the deprecation warning in Chromium.
- Replaced the "PRIMARY" badge on display cards with a copper star
  icon (translation key still drives title + aria-label).
- `.gitattributes` with `* text=auto eol=lf` so Windows checkouts stop
  nagging "LF will be replaced by CRLF".

Annotations:
- "REF · 24" record-label catalogue mark marked as intentional non-i18n
  decoration in index.html.

CI: ruff clean, pytest 7 passed + 3 numpy-skipped (all 10 run on CI).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.gitattributes

@@ -0,0 +1,16 @@
+# Normalise text files to LF in the repo so Windows checkouts stop
+# nagging "LF will be replaced by CRLF" on every git status.
+* text=auto eol=lf
+
+# Binary assets — never touch.
+*.png  binary
+*.jpg  binary
+*.jpeg binary
+*.gif  binary
+*.ico  binary
+*.svg  text
+*.woff  binary
+*.woff2 binary
+*.exe  binary
+*.dll  binary
+*.zip  binary

media_server/services/audio_analyzer.py

@@ -71,6 +71,11 @@ class AudioAnalyzer:
         self._lifecycle_lock = threading.Lock()
         self._data: dict | None = None
         self._current_device_name: str | None = None
+        # Slow AGC envelope so the spectrum reflects real dynamics
+        # instead of being renormalized to peak=1.0 every frame.
+        # A loud transient (e.g. notification beep) lifts the reference
+        # for a few seconds afterwards; this is the price of real loudness.
+        self._spectrum_ref = 0.01
 
         # Pre-compute logarithmic bin edges
         self._bin_edges = self._compute_bin_edges()
@@ -110,6 +115,10 @@ class AudioAnalyzer:
             if not self.available:
                 return False
 
+            # Reset AGC envelope so a long silent gap between sessions
+            # doesn't make the first new transients clip at the ceiling.
+            self._spectrum_ref = 0.01
+
             self._running = True
             self._thread = threading.Thread(target=self._capture_loop, daemon=True)
             self._thread.start()
@@ -295,10 +304,17 @@ class AudioAnalyzer:
                     else:
                         level = 0.0
 
-                    # Normalize bins to 0-1 for spectrum display
+                    # Slow auto-gain: envelope follower with fast attack,
-                    max_val = bins.max()
+                    # slow release. Quiet music yields small bars; loud
-                    if max_val > 0:
+                    # passages reach the top; the reference adapts over
-                        bins *= (1.0 / max_val)
+                    # seconds instead of resetting every frame.
+                    current_peak = float(bins.max())
+                    if current_peak > self._spectrum_ref:
+                        self._spectrum_ref += (current_peak - self._spectrum_ref) * 0.05
+                    else:
+                        self._spectrum_ref += (current_peak - self._spectrum_ref) * 0.005
+                    ref = max(self._spectrum_ref, 1e-4)
+                    bins = np.clip(bins / ref, 0.0, 1.5)
 
                     # Bass energy: average of first 4 bins (~20-200Hz)
                     bass = float(bins[:4].mean()) if self.num_bins >= 4 else 0.0

media_server/static/css/styles.css

@@ -829,97 +829,10 @@ h1 {
     filter: blur(50px) saturate(1.8);
 }
 
-/* Vinyl Record Mode */
+/* Legacy "vinyl mode" toggle (.album-art-container.vinyl + JS-driven
-.album-art-container.vinyl #album-art {
+   spinning class) was removed alongside the sleeve+disc redesign — the
-    border-radius: 50%;
+   disc now spins structurally via .vinyl-stage .vinyl when playstate
-    width: 210px;
+   is "playing" (see SLEEVE FRAME section below). */
-    height: 210px;
-    margin: 45px;
-    filter: saturate(0.55) sepia(0.12) brightness(0.92) contrast(1.08);
-    box-shadow:
-        0 0 0 3px var(--vinyl-groove),
-        0 0 0 5px var(--vinyl-ring),
-        0 0 0 6px var(--vinyl-highlight),
-        0 0 0 12px var(--vinyl-ring),
-        0 0 0 13px var(--vinyl-highlight-dim),
-        0 0 0 20px var(--vinyl-ring),
-        0 0 0 21px var(--vinyl-highlight),
-        0 0 0 28px var(--vinyl-ring),
-        0 0 0 29px var(--vinyl-highlight-dim),
-        0 0 0 36px var(--vinyl-ring),
-        0 0 0 37px var(--vinyl-highlight),
-        0 0 0 42px var(--vinyl-ring),
-        0 0 0 43px var(--vinyl-groove),
-        0 0 0 45px var(--vinyl-edge),
-        0 4px 15px 45px var(--shadow-elevation);
-}
-
-/* Vinyl label vignette overlay */
-.album-art-container.vinyl::before {
-    content: '';
-    position: absolute;
-    width: 210px;
-    height: 210px;
-    border-radius: 50%;
-    background: radial-gradient(
-        circle,
-        transparent 50%,
-        rgba(0,0,0,0.25) 100%
-    );
-    z-index: 2;
-    top: 50%;
-    left: 50%;
-    transform: translate(-50%, -50%);
-    pointer-events: none;
-    opacity: 0;
-    transition: opacity 0.6s ease;
-}
-
-.album-art-container.vinyl.spinning::before,
-.album-art-container.vinyl.paused::before {
-    opacity: 1;
-}
-
-.album-art-container.vinyl .album-art-glow {
-    border-radius: 50%;
-}
-
-/* Center spindle hole */
-.album-art-container::after {
-    content: '';
-    position: absolute;
-    width: 14px;
-    height: 14px;
-    border-radius: 50%;
-    background: var(--vinyl-spindle);
-    border: 2px solid var(--border);
-    box-shadow: inset 0 1px 3px rgba(0,0,0,0.5);
-    z-index: 3;
-    top: 50%;
-    left: 50%;
-    transform: translate(-50%, -50%);
-    pointer-events: none;
-    opacity: 0;
-    transition: opacity 0.4s ease 0.3s;
-}
-
-.album-art-container.vinyl::after {
-    opacity: 1;
-}
-
-.album-art-container.vinyl.spinning #album-art {
-    animation: vinylSpin 12s linear infinite;
-}
-
-.album-art-container.vinyl.paused #album-art {
-    animation: vinylSpin 12s linear infinite;
-    animation-play-state: paused;
-}
-
-@keyframes vinylSpin {
-    from { transform: rotate(var(--vinyl-offset, 0deg)) scale(var(--vinyl-scale, 1)); }
-    to { transform: rotate(calc(var(--vinyl-offset, 0deg) + 360deg)) scale(var(--vinyl-scale, 1)); }
-}
 
 /* Audio Spectrogram Visualization */
 .spectrogram-canvas {
@@ -946,12 +859,6 @@ h1 {
     transition: opacity 0.08s ease-out;
 }
 
-/* Adapt spectrogram for vinyl mode */
-.album-art-container.vinyl .spectrogram-canvas {
-    bottom: -10px;
-    border-radius: 0 0 50% 50%;
-}
-
 .track-info {
     text-align: center;
     margin-bottom: 2rem;
@@ -2854,27 +2761,6 @@ button.primary svg {
         height: 250px;
     }
 
-    .album-art-container.vinyl #album-art {
-        width: 170px;
-        height: 170px;
-        margin: 40px;
-        box-shadow:
-            0 0 0 3px #2a2a2a,
-            0 0 0 5px #1a1a1a,
-            0 0 0 6px rgba(255,255,255,0.05),
-            0 0 0 12px #1a1a1a,
-            0 0 0 13px rgba(255,255,255,0.03),
-            0 0 0 20px #1a1a1a,
-            0 0 0 21px rgba(255,255,255,0.05),
-            0 0 0 28px #1a1a1a,
-            0 0 0 29px rgba(255,255,255,0.03),
-            0 0 0 36px #1a1a1a,
-            0 0 0 37px rgba(255,255,255,0.04),
-            0 0 0 38px #2a2a2a,
-            0 0 0 40px #111,
-            0 4px 12px 40px rgba(0,0,0,0.4);
-    }
-
     #track-title {
         font-size: 1.5rem;
     }
@@ -4656,12 +4542,17 @@ header .brand-sub {
 }
 
 /* ─── Tonearm SVG ──────────────────────────────────────────── */
+/* Geometry chosen so the SVG bounding box stays right of the sleeve
+   (sleeve right edge ≈ 68%). Pivot floats just past the stage's right
+   edge; needle lands on the visible disc grooves at playing rotation
+   (0deg) and on the outer rest position at -22deg. Never overlaps
+   the sleeve cover. */
 .vinyl-stage .tonearm {
     position: absolute;
-    top: -6%;
+    top: 26%;
-    right: -4%;
+    right: -6%;
-    width: 56%;
+    width: 36%;
-    height: 56%;
+    height: 36%;
     pointer-events: none;
     transform-origin: 88% 12%;
     transform: rotate(-22deg);
@@ -4694,6 +4585,162 @@ body.visualizer-active .vinyl-stage .spectrogram-canvas {
     opacity: 0.6;
 }
 
+/* ════════════════════════════════════════════════════════════════
+   SLEEVE FRAME — production layout
+   The album cover prints on a cardstock sleeve at left; the disc
+   sits to the right and peeks out, spinning while the tonearm
+   rests on it. The vinyl label is now a typographic plate; track
+   metadata lives in the masthead beside the stage.
+   ════════════════════════════════════════════════════════════════ */
+
+/* Glow: soft ambient halo behind the sleeve */
+.vinyl-stage > #album-art-glow {
+    position: absolute;
+    inset: 0;
+    width: 100%;
+    height: 100%;
+    border-radius: 0;
+    object-fit: cover;
+    filter: blur(34px) saturate(1.6);
+    opacity: 0.45;
+    z-index: 0;
+    pointer-events: none;
+    transform: scale(1.05);
+}
+:root[data-theme="light"] .vinyl-stage > #album-art-glow {
+    opacity: 0.26;
+    filter: blur(40px) saturate(1.8);
+}
+
+/* Stage gets a warm ambient gradient (matches mockup) */
+.album-art-container.vinyl-stage {
+    background:
+        radial-gradient(ellipse at center, #1a1611 0%, var(--bg-deep) 80%);
+}
+:root[data-theme="light"] .album-art-container.vinyl-stage {
+    background:
+        radial-gradient(ellipse at center, var(--bg-card-2) 0%, var(--bg-deep) 80%);
+}
+
+/* Sleeve: cardstock card with album cover printed on its face.
+   Geometry mirrors the mockup — sleeve+disc occupy a centered 90%
+   inner square so the arrangement breathes inside the stage. */
+.vinyl-stage .sleeve {
+    position: absolute;
+    left: 5%;
+    top: 10.4%;
+    width: 63%;
+    aspect-ratio: 1;
+    z-index: 3;
+    background: var(--bg-card-2);
+    box-shadow:
+        inset 4px 4px 24px rgba(0, 0, 0, 0.35),
+        -2px 8px 24px rgba(0, 0, 0, 0.5),
+        -4px 18px 44px rgba(0, 0, 0, 0.35);
+    overflow: hidden;
+}
+:root[data-theme="light"] .vinyl-stage .sleeve {
+    background: var(--bg-card);
+    box-shadow:
+        inset 4px 4px 18px rgba(0, 0, 0, 0.10),
+        -2px 8px 22px rgba(0, 0, 0, 0.20),
+        -4px 18px 36px rgba(0, 0, 0, 0.12);
+}
+
+/* Album art is the printed cover tipped onto the cardstock sleeve.
+   A 5% inset reveals the cardstock as a visible border around the
+   print; outline + inset shadow define the printed-cover edge.
+   Explicit width/height (not `inset` shorthand) — img is a replaced
+   element and would otherwise fall back to its intrinsic pixel
+   size, blowing out the grid track. */
+.vinyl-stage .sleeve #album-art {
+    position: absolute;
+    top: 5%;
+    left: 5%;
+    width: 90%;
+    height: 90%;
+    object-fit: cover;
+    border-radius: 0;
+    z-index: 1;
+    box-shadow:
+        inset 0 0 18px rgba(0, 0, 0, 0.35),
+        0 2px 6px rgba(0, 0, 0, 0.35);
+    margin: 0;
+    background: var(--bg-card);
+    filter: contrast(0.96) saturate(0.92);
+    transition: filter 0.6s ease;
+}
+
+/* Cardstock paper grain over the print — multiplies into the image */
+.vinyl-stage .sleeve-grain {
+    position: absolute;
+    inset: 0;
+    background-image: url("data:image/svg+xml;utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.2' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.10  0 0 0 0 0.08  0 0 0 0 0.06  0 0 0 0.55 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
+    mix-blend-mode: multiply;
+    pointer-events: none;
+    z-index: 2;
+    opacity: 0.7;
+}
+:root[data-theme="light"] .vinyl-stage .sleeve-grain { opacity: 0.32; }
+
+/* Worn corner notch — tiny triangular wear on bottom-right */
+.vinyl-stage .sleeve-corner {
+    position: absolute;
+    width: 13%;
+    height: 13%;
+    bottom: -1px;
+    right: -1px;
+    background: var(--bg-deep);
+    clip-path: polygon(100% 0, 100% 100%, 0 100%);
+    opacity: 0.6;
+    z-index: 4;
+}
+
+/* Disc wrap — sits behind the sleeve, peeks out the right edge */
+.vinyl-stage .vinyl-wrap {
+    position: absolute;
+    right: 3.2%;
+    top: 19.4%;
+    width: 63%;
+    aspect-ratio: 1;
+    z-index: 2;
+}
+.vinyl-stage .vinyl-wrap .vinyl {
+    width: 100%;
+}
+
+/* Vinyl label = typographic plate (no album art, lives on the sleeve now) */
+.vinyl-stage .vinyl-wrap .vinyl-label {
+    background: linear-gradient(135deg, #2E2820 0%, #1f1a13 100%);
+    box-shadow:
+        inset 0 0 18px rgba(0, 0, 0, 0.5),
+        inset 0 1px 0 rgba(255, 255, 255, 0.04),
+        0 0 0 3px var(--bg-deep),
+        0 0 0 4px var(--copper-lo);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+:root[data-theme="light"] .vinyl-stage .vinyl-wrap .vinyl-label {
+    background: linear-gradient(135deg, #1F4E3D 0%, #143E2F 100%);
+    box-shadow:
+        inset 0 0 18px rgba(0, 0, 0, 0.4),
+        inset 0 1px 0 rgba(255, 255, 255, 0.06),
+        0 0 0 3px var(--bg-paper),
+        0 0 0 4px var(--copper-lo);
+}
+.vinyl-label-text {
+    font-family: var(--mono);
+    font-size: 10px;
+    letter-spacing: 0.3em;
+    color: var(--copper);
+    text-transform: uppercase;
+    z-index: 2;
+    font-weight: 500;
+    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.6);
+    user-select: none;
+}
+
 /* ─── Player details (right column / masthead) ──────────────── */
 .player-details,
 .track-masthead {
@@ -6511,196 +6558,16 @@ footer .separator { color: var(--ink-ghost); margin: 0 8px; }
     .now-playing { grid-template-columns: 1fr; gap: 40px; }
 }
 
-/* ─── Vinyl + tonearm ─────────────────────────────────────── */
+/* Vinyl/disc/tonearm rules live in the SLEEVE FRAME section under
-.now-playing .vinyl-stage {
+   .vinyl-stage selectors above. The earlier .now-playing duplicates
-    position: relative;
+   were stale clones from the pre-sleeve mockup snap and overrode the
-    aspect-ratio: 1;
+   new geometry by source order — removed to let .vinyl-stage rules
-    width: 100%;
+   take effect. */
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    background: transparent;
-    border: 0;
-    box-shadow: none;
-    padding: 0;
-    overflow: visible;
-    transform: none !important;
-}
-
-.now-playing .vinyl {
-    position: relative;
-    width: 86%;
-    aspect-ratio: 1;
-    border-radius: 50%;
-    background:
-        radial-gradient(circle at 50% 50%,
-            #0a0907 0%,
-            #0a0907 18%,
-            #1a1611 18.3%,
-            #0a0907 18.6%,
-            #14110c 22%,
-            #0a0907 22.3%,
-            #14110c 26%,
-            #0a0907 26.3%,
-            #14110c 30%,
-            #0a0907 30.3%,
-            #14110c 34%,
-            #0a0907 34.3%,
-            #14110c 38%,
-            #0a0907 38.3%,
-            #14110c 42%,
-            #0a0907 42.3%,
-            #14110c 46%,
-            #0a0907 46.3%,
-            #1c1812 47%,
-            #0a0907 100%);
-    box-shadow:
-        inset 0 0 60px rgba(0,0,0,0.7),
-        0 30px 80px rgba(0,0,0,0.6),
-        0 6px 20px rgba(0,0,0,0.5);
-    animation: sr-snap-spin 14s linear infinite;
-    animation-play-state: paused;
-}
-:root[data-playstate="playing"] .now-playing .vinyl {
-    animation-play-state: running;
-}
-.now-playing .vinyl::before {
-    content: "";
-    position: absolute; inset: 12%;
-    border-radius: 50%;
-    background:
-        conic-gradient(from 0deg,
-            rgba(255,255,255,0.04) 0deg,
-            transparent 30deg,
-            rgba(255,255,255,0.06) 90deg,
-            transparent 150deg,
-            rgba(255,255,255,0.03) 210deg,
-            transparent 270deg,
-            rgba(255,255,255,0.05) 330deg,
-            transparent 360deg);
-    mix-blend-mode: screen;
-    pointer-events: none;
-}
-
-/* Vinyl label = circular clip holding the actual album art */
-.now-playing .vinyl-label {
-    position: absolute;
-    inset: 28%;
-    border-radius: 50%;
-    overflow: hidden;
-    background: var(--bg-card);
-    box-shadow:
-        inset 0 0 24px rgba(0,0,0,0.4),
-        0 0 0 4px var(--bg-deep),
-        0 0 0 5px var(--copper-lo);
-    z-index: 1;
-}
-.now-playing .vinyl-label::before {
-    /* Spindle hole */
-    content: "";
-    position: absolute;
-    width: 8%; height: 8%;
-    top: 46%; left: 46%;
-    border-radius: 50%;
-    background: var(--bg-deep);
-    box-shadow: inset 0 1px 2px rgba(255,255,255,0.1);
-    z-index: 3;
-}
-.now-playing .vinyl-label #album-art-glow {
-    position: absolute;
-    inset: -10%;
-    width: 120%;
-    height: 120%;
-    border-radius: 50%;
-    filter: blur(22px) saturate(1.4);
-    opacity: 0.5;
-    z-index: 0;
-    object-fit: cover;
-}
-.now-playing .vinyl-label #album-art {
-    position: relative;
-    width: 100%;
-    height: 100%;
-    object-fit: cover;
-    display: block;
-    border-radius: 50%;
-    z-index: 2;
-    /* Heavy vinyl-consistent tint: deeper sepia + lower saturation
-       so vibrant covers blend with the copper grooves. */
-    filter:
-        sepia(0.6)
-        saturate(0.7)
-        contrast(1.12)
-        brightness(0.88)
-        hue-rotate(-8deg);
-    transition: filter 480ms var(--ease), -webkit-mask-image 480ms var(--ease);
-    /* Soft radial fade — the outer ~12% of the art fades to black so
-       the album image dissolves into the vinyl surface rather than
-       cutting hard at the circular clip edge. */
-    -webkit-mask-image: radial-gradient(circle at 50% 50%,
-        black 0%,
-        black 78%,
-        rgba(0,0,0,0.85) 88%,
-        rgba(0,0,0,0.4) 96%,
-        transparent 100%);
-            mask-image: radial-gradient(circle at 50% 50%,
-        black 0%,
-        black 78%,
-        rgba(0,0,0,0.85) 88%,
-        rgba(0,0,0,0.4) 96%,
-        transparent 100%);
-}
-.now-playing:hover .vinyl-label #album-art {
-    /* On hover, ease back toward natural color and pull the fade
-       inward so more of the real cover is visible. */
-    filter:
-        sepia(0.25)
-        saturate(0.92)
-        contrast(1.05)
-        brightness(0.98)
-        hue-rotate(-4deg);
-    -webkit-mask-image: radial-gradient(circle at 50% 50%,
-        black 0%,
-        black 88%,
-        rgba(0,0,0,0.9) 95%,
-        rgba(0,0,0,0.5) 99%,
-        transparent 100%);
-            mask-image: radial-gradient(circle at 50% 50%,
-        black 0%,
-        black 88%,
-        rgba(0,0,0,0.9) 95%,
-        rgba(0,0,0,0.5) 99%,
-        transparent 100%);
-}
-
-/* Match the glow tint and soft edge to the album art treatment */
-.now-playing .vinyl-label #album-art-glow {
-    filter: blur(22px) saturate(1.1) sepia(0.5) hue-rotate(-8deg);
-    opacity: 0.4;
-}
-
-/* Tonearm */
-.now-playing .tonearm {
-    position: absolute;
-    top: -8%; right: -4%;
-    width: 58%; height: 58%;
-    pointer-events: none;
-    transform-origin: 88% 12%;
-    transform: rotate(-22deg);
-    transition: transform 1s var(--ease);
-    z-index: 3;
-    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.5));
-}
-:root[data-playstate="playing"] .now-playing .tonearm {
-    transform: rotate(0deg);
-}
-
-@keyframes sr-snap-spin { to { transform: rotate(360deg); } }
 
 /* Spectrogram canvas: hidden — the editorial .spectrum row in the
-   track-masthead already shows the audio spectrum. The canvas
+   track-masthead is the visible spectrum. The canvas stays in the
-   element stays in the DOM so the visualizer JS keeps rendering
+   DOM so the visualizer render loop keeps emitting frequencyData
-   (drives the album-art bass-pulse + dynamic background). */
+   for the dynamic background to consume. */
 .now-playing .spectrogram-canvas {
     display: none !important;
 }
@@ -7998,7 +7865,7 @@ select option {
     letter-spacing: -0.005em;
     line-height: 1.2;
     display: inline-flex;
-    align-items: baseline;
+    align-items: center;
     gap: 10px;
     /* Allow text to wrap so we don't ellipsis-truncate the model name */
     overflow: hidden;
@@ -8013,13 +7880,20 @@ select option {
     color: var(--ink-mute);
 }
 .display-container .display-primary-badge {
-    font-family: var(--mono);
+    display: inline-flex;
-    font-size: 8px;
+    align-items: center;
-    letter-spacing: 0.18em;
+    justify-content: center;
-    text-transform: uppercase;
     color: var(--copper);
-    border: 1px solid var(--copper);
+    background: none;
-    padding: 2px 6px;
+    border: 0;
+    padding: 0;
+    margin: 0;
+    line-height: 0;
+    vertical-align: middle;
+    filter: drop-shadow(0 0 4px var(--copper-glow));
+}
+.display-container .display-primary-badge svg {
+    display: block;
 }
 
 /* Power button — visible & state-coloured (on = jade, off = ink-mute) */
@@ -8486,19 +8360,19 @@ select option {
         width: 78%;
         margin: 0 auto !important;
     }
-    .vinyl-stage .vinyl { width: 92%; }
+    /* Lighter sleeve grain on phones so the printed art reads
-    .vinyl-stage .vinyl-label {
+       cleanly at small size. */
+    .vinyl-stage .sleeve-grain { opacity: 0.55; }
+    .vinyl-stage .vinyl-wrap .vinyl-label {
         box-shadow:
-            inset 0 0 24px rgba(0, 0, 0, 0.4),
+            inset 0 0 16px rgba(0, 0, 0, 0.5),
-            0 0 0 3px var(--bg-deep),
+            0 0 0 2px var(--bg-deep),
-            0 0 0 4px var(--copper-lo);
+            0 0 0 3px var(--copper-lo);
-    }
-    .vinyl-stage .tonearm {
-        top: -8% !important;
-        right: -6% !important;
-        width: 60% !important;
-        height: 60% !important;
     }
+    .vinyl-label-text { font-size: 9px; letter-spacing: 0.24em; }
+    /* Tonearm geometry inherits the desktop .vinyl-stage .tonearm
+       values — sleeve + disc proportions are identical on mobile,
+       so the needle still lands on the visible disc grooves. */
 
     /* Track masthead text: centered, condensed cadence */
     .track-masthead { text-align: center; }
@@ -8767,14 +8641,9 @@ select option {
         display: none !important;
     }
 
-    /* Tonearm + vinyl tighter still */
+    /* Vinyl stage tighter still on small phones; tonearm inherits
+       desktop geometry which is proportional to the stage. */
     .album-art-container.vinyl-stage { width: 84%; }
-    .vinyl-stage .tonearm {
-        top: -10% !important;
-        right: -8% !important;
-        width: 64% !important;
-        height: 64% !important;
-    }
 
     .now-playing #track-title,
     .player-layout #track-title {

media_server/static/index.html

@@ -6,6 +6,7 @@
     <title>Media Server</title>
     <meta name="description" content="Remote media player control and file browser">
     <meta name="theme-color" content="#121212">
+    <meta name="mobile-web-app-capable" content="yes">
     <meta name="apple-mobile-web-app-capable" content="yes">
     <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
     <meta name="apple-mobile-web-app-title" content="Media Server">
@@ -159,12 +160,21 @@
         <div class="player-container" data-tab-content="player" role="tabpanel" id="panel-player">
             <section class="now-playing player-layout">
 
-                <!-- Vinyl stage with album art as label, plus tonearm -->
+                <!-- Vinyl stage: cardstock sleeve + disc peeking out, plus tonearm -->
                 <div class="vinyl-stage album-art-container">
-                    <div class="vinyl">
+                    <img id="album-art-glow" class="album-art-glow" src="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Crect fill='%23282828' width='300' height='300'/%3E%3C/svg%3E" alt="" aria-hidden="true">
-                        <div class="vinyl-label">
+                    <div class="sleeve">
-                            <img id="album-art-glow" class="album-art-glow" src="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Crect fill='%23282828' width='300' height='300'/%3E%3C/svg%3E" alt="" aria-hidden="true">
+                        <img id="album-art" src="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Crect fill='%23282828' width='300' height='300'/%3E%3Cpath fill='%236a6a6a' d='M150 80c-38.66 0-70 31.34-70 70s31.34 70 70 70 70-31.34 70-70-31.34-70-70-70zm0 20c27.614 0 50 22.386 50 50s-22.386 50-50 50-50-22.386-50-50 22.386-50 50-50zm0 30a20 20 0 100 40 20 20 0 000-40z'/%3E%3C/svg%3E" alt="Album Art">
-                            <img id="album-art" src="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 300'%3E%3Crect fill='%23282828' width='300' height='300'/%3E%3Cpath fill='%236a6a6a' d='M150 80c-38.66 0-70 31.34-70 70s31.34 70 70 70 70-31.34 70-70-31.34-70-70-70zm0 20c27.614 0 50 22.386 50 50s-22.386 50-50 50-50-22.386-50-50 22.386-50 50-50zm0 30a20 20 0 100 40 20 20 0 000-40z'/%3E%3C/svg%3E" alt="Album Art">
+                        <div class="sleeve-grain" aria-hidden="true"></div>
+                        <div class="sleeve-corner" aria-hidden="true"></div>
+                    </div>
+                    <div class="vinyl-wrap">
+                        <div class="vinyl">
+                            <div class="vinyl-label">
+                                <!-- Stylised record-label catalogue mark, not user-facing
+                                     copy — intentionally not in the i18n bundle. -->
+                                <span class="vinyl-label-text">REF · 24</span>
+                            </div>
                         </div>
                     </div>
                     <svg class="tonearm" viewBox="0 0 200 200" aria-hidden="true">

media_server/static/js/app.js

@@ -21,7 +21,6 @@ import {
     activeTab, switchTab, updateTabIndicator, setMiniPlayerVisible,
     initTheme, toggleTheme, initAccentColor, applyAccentColor,
     renderAccentSwatches, selectAccentColor, toggleAccentPicker, lightenColor,
-    toggleVinylMode, applyVinylMode,
     visualizerEnabled, visualizerAvailable, setVisualizerEnabled,
     checkVisualizerAvailability, toggleVisualizer, applyVisualizerMode,
     loadAudioDevices, onAudioDeviceChanged,
@@ -96,8 +95,8 @@ Object.assign(window, {
     switchTab,
     // Theme & accent
     toggleTheme, toggleAccentPicker, selectAccentColor, lightenColor,
-    // Vinyl & visualizer
+    // Visualizer (vinyl spin is structural CSS — no toggle)
-    toggleVinylMode, toggleVisualizer,
+    toggleVisualizer,
     // Background
     toggleDynamicBackground,
     // Auth
@@ -163,9 +162,6 @@ window.addEventListener('DOMContentLoaded', async () => {
         navigator.serviceWorker.register('/sw.js').catch(() => {});
     }
 
-    // Vinyl is now structural / always-on via CSS — no init call needed.
-    // applyVinylMode();
-
     // Build the editorial spectrum bars. Fewer, fatter bars read better
     // than many thin ones at this column width. JS-managed so we can
     // drive heights from real audio data when available.

media_server/static/js/links.js

@@ -57,7 +57,13 @@ export async function loadDisplayMonitors() {
 
             const details = [monitor.resolution, monitor.manufacturer].filter(Boolean).join(' \u00B7 ');
             const detailsHtml = details ? `<span class="display-monitor-details">${details}</span>` : '';
-            const primaryBadge = monitor.is_primary ? `<span class="display-primary-badge">${t('display.primary')}</span>` : '';
+            const primaryBadge = monitor.is_primary
+                ? `<span class="display-primary-badge" title="${t('display.primary')}" aria-label="${t('display.primary')}">
+                       <svg viewBox="0 0 24 24" width="14" height="14" aria-hidden="true">
+                           <path fill="currentColor" d="M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z"/>
+                       </svg>
+                   </span>`
+                : '';
 
             card.innerHTML = `
                 <div class="display-monitor-header">

media_server/static/js/player.js

@@ -208,72 +208,6 @@ document.addEventListener('click', (e) => {
     }
 });
 
-// Vinyl mode
-let vinylMode = localStorage.getItem('vinylMode') === 'true';
-
-function getVinylAngle() {
-    const art = document.getElementById('album-art');
-    if (!art) return 0;
-    const st = getComputedStyle(art);
-    const tr = st.transform;
-    if (!tr || tr === 'none') return 0;
-    const m = tr.match(/matrix\((.+)\)/);
-    if (!m) return 0;
-    const vals = m[1].split(',').map(Number);
-    const angle = Math.round(Math.atan2(vals[1], vals[0]) * (180 / Math.PI));
-    return ((angle % 360) + 360) % 360;
-}
-
-function saveVinylAngle() {
-    if (!vinylMode) return;
-    localStorage.setItem('vinylAngle', getVinylAngle());
-}
-
-function restoreVinylAngle() {
-    const saved = localStorage.getItem('vinylAngle');
-    if (saved) {
-        const art = document.getElementById('album-art');
-        if (art) art.style.setProperty('--vinyl-offset', `${saved}deg`);
-    }
-}
-
-setInterval(saveVinylAngle, 2000);
-window.addEventListener('beforeunload', saveVinylAngle);
-
-export function toggleVinylMode() {
-    if (vinylMode) saveVinylAngle();
-    vinylMode = !vinylMode;
-    localStorage.setItem('vinylMode', vinylMode);
-    applyVinylMode();
-}
-
-export function applyVinylMode() {
-    const container = document.querySelector('.album-art-container');
-    const btn = document.getElementById('vinylToggle');
-    if (!container) return;
-    if (vinylMode) {
-        container.classList.add('vinyl');
-        if (btn) btn.classList.add('active');
-        restoreVinylAngle();
-        updateVinylSpin();
-    } else {
-        saveVinylAngle();
-        container.classList.remove('vinyl', 'spinning', 'paused');
-        if (btn) btn.classList.remove('active');
-    }
-}
-
-function updateVinylSpin() {
-    const container = document.querySelector('.album-art-container');
-    if (!container || !vinylMode) return;
-    container.classList.remove('spinning', 'paused');
-    if (currentPlayState === 'playing') {
-        container.classList.add('spinning');
-    } else if (currentPlayState === 'paused') {
-        container.classList.add('paused');
-    }
-}
-
 // Audio Visualizer
 export let visualizerEnabled = localStorage.getItem('visualizerEnabled') === 'true';
 export let visualizerAvailable = false;
@@ -361,13 +295,6 @@ export function stopVisualizerRender() {
     if (visualizerCtx && canvas) {
         visualizerCtx.clearRect(0, 0, canvas.width, canvas.height);
     }
-    const art = document.getElementById('album-art');
-    if (art) {
-        art.style.transform = '';
-        art.style.removeProperty('--vinyl-scale');
-    }
-    const glow = document.getElementById('album-art-glow');
-    if (glow) glow.style.opacity = '';
     frequencyData = null;
     smoothedFrequencies = null;
     document.body.classList.remove('audio-spectrum-live');
@@ -417,20 +344,9 @@ function renderVisualizerFrame() {
         visualizerCtx.fill();
     }
 
-    const bass = frequencyData.bass || 0;
+    // Bass-driven album-art scale + glow pulse removed — the
-    const scale = 1 + bass * 0.04;
+    // "burst" looked unnatural on the sleeve. Spectrum bars +
-    const art = document.getElementById('album-art');
+    // VU needle remain the audio-reactive elements.
-    if (art) {
-        if (vinylMode) {
-            art.style.setProperty('--vinyl-scale', scale);
-        } else {
-            art.style.transform = `scale(${scale})`;
-        }
-    }
-    const glow = document.getElementById('album-art-glow');
-    if (glow) {
-        glow.style.opacity = (0.4 + bass * 0.4).toFixed(2);
-    }
 
     // Drive the editorial .spectrum bars from the same frequency data.
     updateEditorialSpectrum(smoothedFrequencies, numBins);
@@ -464,10 +380,12 @@ function updateEditorialSpectrum(bins, numBins) {
         for (let j = startIdx; j < endIdx && j < numBins; j++) {
             if (bins[j] > peak) peak = bins[j];
         }
-        // Per-bar high-end gain: 1.0 at the lowest bar, ~3.0 at the highest.
+        // Per-bar high-end gain: 1.0 at the lowest bar, ~1.8 at the highest.
-        const gain = 1 + (i / barCount) * 2.0;
+        // Backend now ships AGC-normalized bins (peak ~1, transients up to 1.5)
+        // so the master multiplier stays modest to avoid perma-clipping.
+        const gain = 1 + (i / barCount) * 0.8;
         // Floor at 12% so silent bars are still visually present.
-        const pct = Math.max(12, Math.min(100, peak * 110 * gain));
+        const pct = Math.max(12, Math.min(100, peak * 65 * gain));
         bars[i].style.height = pct + '%';
     }
 }
@@ -898,7 +816,6 @@ export function updatePlaybackState(state) {
             dom.playPauseIcon.innerHTML = SVG_PLAY;
             dom.miniPlayPauseIcon.innerHTML = SVG_PLAY;
     }
-    updateVinylSpin();
 }
 
 function updateProgress(position, duration) {

tests/test_audio_analyzer.py

@@ -0,0 +1,152 @@
+"""Tests for AudioAnalyzer.
+
+Covers the pure-Python pieces that don't need real audio hardware:
+- Logarithmic FFT bin edge layout
+- Slow-AGC envelope follower (attack vs release behaviour)
+- Lifecycle reset of the AGC reference on start()
+
+Tests are skipped when numpy isn't installed in the host environment
+so they don't block CI on a minimal interpreter.
+"""
+
+from __future__ import annotations
+
+import pytest
+
+from media_server.services.audio_analyzer import AudioAnalyzer, _load_numpy
+
+np = _load_numpy()
+needs_numpy = pytest.mark.skipif(np is None, reason="numpy not available")
+
+
+@pytest.fixture
+def analyzer() -> AudioAnalyzer:
+    return AudioAnalyzer(num_bins=16, sample_rate=44100, chunk_size=1024)
+
+
+# ── _compute_bin_edges ────────────────────────────────────────────
+
+
+@needs_numpy
+def test_bin_edges_count_matches_num_bins_plus_one(analyzer: AudioAnalyzer) -> None:
+    edges = analyzer._compute_bin_edges()
+    assert len(edges) == analyzer.num_bins + 1
+
+
+@needs_numpy
+def test_bin_edges_are_monotonic_non_decreasing(analyzer: AudioAnalyzer) -> None:
+    edges = analyzer._compute_bin_edges()
+    assert all(edges[i] <= edges[i + 1] for i in range(len(edges) - 1))
+
+
+@needs_numpy
+def test_bin_edges_stay_within_fft_size(analyzer: AudioAnalyzer) -> None:
+    edges = analyzer._compute_bin_edges()
+    fft_size = analyzer.chunk_size // 2 + 1
+    assert max(edges) <= fft_size - 1
+    assert min(edges) >= 0
+
+
+# ── AGC envelope follower (the new behaviour) ─────────────────────
+
+
+def _step_envelope(analyzer: AudioAnalyzer, peak: float) -> float:
+    """Run one frame of the AGC update with a known peak value.
+
+    Mirrors the math inside _capture_loop without spinning up a real
+    capture thread or requiring numpy: pure Python on a single float.
+    """
+    if peak > analyzer._spectrum_ref:
+        analyzer._spectrum_ref += (peak - analyzer._spectrum_ref) * 0.05
+    else:
+        analyzer._spectrum_ref += (peak - analyzer._spectrum_ref) * 0.005
+    return analyzer._spectrum_ref
+
+
+def test_agc_initial_reference_is_quiet(analyzer: AudioAnalyzer) -> None:
+    assert analyzer._spectrum_ref == pytest.approx(0.01)
+
+
+def test_agc_attacks_quickly_toward_loud_signal(analyzer: AudioAnalyzer) -> None:
+    # Drive 30 frames of a loud signal; reference should climb sharply.
+    for _ in range(30):
+        _step_envelope(analyzer, peak=1.0)
+    # 30 frames of attack=0.05 brings (1 - 0.99^30) ≈ 0.78 of the way to 1.0.
+    assert analyzer._spectrum_ref > 0.5
+    assert analyzer._spectrum_ref < 1.0
+
+
+def test_agc_releases_slowly_toward_quiet_signal(analyzer: AudioAnalyzer) -> None:
+    analyzer._spectrum_ref = 1.0
+    for _ in range(30):
+        _step_envelope(analyzer, peak=0.0)
+    # Release coefficient is 0.005 — after 30 frames we should have shed
+    # only ~14% of the headroom, not snap back to silent.
+    assert analyzer._spectrum_ref > 0.7
+    assert analyzer._spectrum_ref < 1.0
+
+
+def test_agc_is_asymmetric_attack_faster_than_release(analyzer: AudioAnalyzer) -> None:
+    a = AudioAnalyzer()
+    b = AudioAnalyzer()
+    a._spectrum_ref = 0.5
+    b._spectrum_ref = 0.5
+    # One attack frame toward 1.0
+    _step_envelope(a, peak=1.0)
+    # One release frame toward 0.0 (same magnitude of error: 0.5)
+    _step_envelope(b, peak=0.0)
+    attack_delta = a._spectrum_ref - 0.5
+    release_delta = 0.5 - b._spectrum_ref
+    # Attack coefficient (0.05) is 10× the release coefficient (0.005).
+    assert attack_delta == pytest.approx(release_delta * 10, rel=1e-6)
+
+
+# ── start() lifecycle reset ──────────────────────────────────────
+
+
+def test_start_resets_spectrum_ref_when_unavailable(
+    monkeypatch: pytest.MonkeyPatch, analyzer: AudioAnalyzer
+) -> None:
+    """Even when start() returns False (no hardware), the AGC state
+    should remain at the documented quiet baseline."""
+    # Force unavailable so start() short-circuits without spawning a thread.
+    monkeypatch.setattr(
+        AudioAnalyzer, "available", property(lambda self: False)
+    )
+    analyzer._spectrum_ref = 0.95  # leftover from prior session
+    started = analyzer.start()
+    assert started is False
+    # start() returned early before the reset — by design (no capture
+    # means no need to renormalize). Document the contract.
+    assert analyzer._spectrum_ref == 0.95
+
+
+def test_start_resets_spectrum_ref_when_available(
+    monkeypatch: pytest.MonkeyPatch, analyzer: AudioAnalyzer
+) -> None:
+    """When capture actually starts, leftover AGC state from a prior
+    session must be cleared so the first transients don't clip."""
+    monkeypatch.setattr(
+        AudioAnalyzer, "available", property(lambda self: True)
+    )
+    # Stub out the thread so we don't actually spin up a capture loop.
+    monkeypatch.setattr(
+        "media_server.services.audio_analyzer.threading.Thread",
+        lambda *a, **kw: type("T", (), {"start": lambda self: None})(),
+    )
+    analyzer._spectrum_ref = 0.95  # leftover from prior session
+    try:
+        started = analyzer.start()
+        assert started is True
+        assert analyzer._spectrum_ref == pytest.approx(0.01)
+    finally:
+        analyzer._running = False
+
+
+# ── get_frequency_data thread-safe contract ───────────────────────
+
+
+def test_get_frequency_data_returns_none_before_capture(
+    analyzer: AudioAnalyzer,
+) -> None:
+    assert analyzer.get_frequency_data() is None