fix(0.3.1): My Radio layout polish + drop dark-auto

Real-screen review of v0.3.0 surfaced a contrast bug and several layout
issues. Quick patch.

- Drop @media prefers-color-scheme dark for theme=auto. WP admin has
  no native dark mode, so OS-dark made our light text sit on the still-
  white WP postbox = unreadable. `auto` now behaves as light; `dark`
  remains as an explicit choice.
- theme=dark now actually reads: the player surface itself goes dark
  (#1d2327 bg + subtle border + padding) so the light text has somewhere
  to land instead of fighting the white WP postbox.
- .radio-wrap max-width 880px — player no longer stretches edge-to-edge.
- Drop the .radio-intro max-width:720px cap so the intro fits one line.
- Volume slider fixed at flex:0 0 auto / width:220px — % label sits next
  to the slider instead of pinned to the far edge.
- Station dropdown capped at 360px (was width:100%).
- Play-button dashicon shrunk 18px → 14px so it sits on the button-text
  baseline instead of looking like a second row.

Files: radio.php, assets/css/radio.css, inc/about.php, CHANGELOG.md.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -9,6 +9,23 @@ Format: [Keep a Changelog 1.1.0](https://keepachangelog.com/en/1.1.0/) — versi
 
 ---
 
+## [0.3.1] — 2026-05-29 — My Radio layout polish + drop dark-auto
+
+Quick patch after a real-screen review of the My Radio admin page. v0.3.0 added a lot of features but stretched the player to fill the full admin width and — embarrassingly — introduced a real contrast bug via the dark-auto CSS.
+
+### Fixed
+- **Dropped `@media (prefers-color-scheme: dark)` for `theme=auto`.** WordPress admin has no native dark mode, so when the OS was dark, our dark text rendered on the still-white WP postbox = unreadable. `auto` now behaves as light (matching WP's actual scheme); `dark` is still available as an explicit choice.
+- **`theme=dark` now actually reads.** The player surface goes dark (`#1d2327` background + subtle border + padding) so the light text has somewhere to sit, instead of fighting the white WP postbox.
+- **Player no longer stretches edge-to-edge.** `.radio-wrap { max-width: 880px; }` keeps the player a focused settings-page card.
+- **Intro paragraph one-line on normal widths.** Removed the `max-width: 720px` cap that was forcing the wrap.
+- **Volume slider no longer dominates the row.** Fixed width 220px (`flex: 0 0 auto`) — the percent label now sits next to the slider instead of pinned to the far right edge.
+- **Station dropdown** capped at 360px (was full-width) — typical WP form-control width.
+- **Play button icon** shrunk from 18px to 14px so the ▶ glyph sits on the button-text baseline instead of looking like a separate row.
+
+**Files changed:** `radio.php` (version), `assets/css/radio.css` (wrap width, intro, play icon, volume, station-select, dark-auto block deleted, dark-surface added), `inc/about.php` (history entry).
+
+---
+
 ## [0.3.0] — 2026-05-29 — Dark theme + mute + media keys + current-track display
 
 A polish pass that closes the gaps surfaced by a UI review. Two categories: **2nd-look fixes** (things the previous release implied but didn't actually deliver) and **nice-to-haves** (small upgrades that lift the admin-player feel).

assets/css/radio.css

@@ -87,9 +87,9 @@
 }
 
 .radio-player__play .dashicons {
-    font-size: 18px;
+    font-size: 14px;
-    width: 18px;
+    width: 14px;
-    height: 18px;
+    height: 14px;
     line-height: 1;
 }
 
@@ -97,8 +97,8 @@
     display: flex;
     align-items: center;
     gap: 8px;
-    flex: 1;
+    flex: 0 0 auto;
-    min-width: 200px;
+    width: 220px;
 }
 
 .radio-player__volume .dashicons {
@@ -160,7 +160,7 @@
 
 .radio-player__station-select select {
     width: 100%;
-    max-width: 100%;
+    max-width: 360px;
 }
 
 /* Error notice — uses WP notice styling */
@@ -195,9 +195,15 @@
 }
 
 /* ──────────────────────────────────────────────────────────────────
- * Main admin page — wrap player in a postbox-like card
+ * Main admin page — wrap player in a postbox-like card.
+ * Constrained max-width keeps the player a focused settings-page card
+ * instead of stretching to fill the full admin width.
  * ─────────────────────────────────────────────────────────────── */
 
+.radio-wrap {
+    max-width: 880px;
+}
+
 .radio-wrap .radio-player {
     margin-top: 4px;
 }
@@ -206,7 +212,6 @@
     margin: 0 0 16px;
     color: #50575e;
     font-size: 13px;
-    max-width: 720px;
 }
 
 /* ──────────────────────────────────────────────────────────────────
@@ -366,27 +371,12 @@
     border-top-color: #3c434a;
 }
 
-/* Auto — same dark rules behind prefers-color-scheme. Duplicated rather
+/* Give the player its own dark surface when theme=dark so the dark text
-   than nested in @media-inside-selector (CSS doesn't allow that), kept
+   has something to read against — WP postboxes don't follow our dark
-   line-for-line in sync with the .radio-theme-dark block above. */
+   choice, so without this the light text would sit on white. */
-@media (prefers-color-scheme: dark) {
+.radio-theme-dark .radio-player {
-    .radio-theme-auto .radio-player__now { border-bottom-color: #3c434a; }
+    background: #1d2327;
-    .radio-theme-auto .radio-player__station-name { color: #f0f0f1; }
+    padding: 14px 16px;
-    .radio-theme-auto .radio-player__label,
+    border-radius: 3px;
-    .radio-theme-auto .radio-player__station-genre,
+    border: 1px solid #3c434a;
-    .radio-theme-auto .radio-player__volume-pct,
-    .radio-theme-auto .radio-player__credit,
-    .radio-theme-auto .radio-player__mute,
-    .radio-theme-auto .radio-player__station-select label,
-    .radio-theme-auto .radio-player__volume .dashicons { color: #a7aaad; }
-    .radio-theme-auto .radio-player__mute:hover { color: #f0f0f1; }
-    .radio-theme-auto .radio-player__mute--muted { color: #ff8b8b; }
-    .radio-theme-auto .radio-player__station-desc,
-    .radio-theme-auto .radio-player__track,
-    .radio-theme-auto .radio-intro { color: #c3c4c7; }
-    .radio-theme-auto .radio-player__station-genre { background: rgba(255, 255, 255, 0.08); }
-    .radio-theme-auto .radio-player__error { background: rgba(179, 45, 46, 0.18); color: #ff9b9b; }
-    .radio-theme-auto .radio-about-card { background: #1d2327; border-color: #3c434a; color: #c3c4c7; }
-    .radio-theme-auto .radio-about-card h2 { background: #2c3338; color: #f0f0f1; border-bottom-color: #3c434a; }
-    .radio-theme-auto #radio_dashboard_widget .radio-player__credit { border-top-color: #3c434a; }
 }

inc/about.php

@@ -48,8 +48,12 @@ function radio_render_about_page() {
                 <h2><?php esc_html_e( 'Version history', 'radio' ); ?></h2>
                 <ul>
                     <li>
-                        <span class="ver">v0.3.0</span> &mdash; 29 May 2026 <span class="latest">latest</span><br>
+                        <span class="ver">v0.3.1</span> &mdash; 29 May 2026 <span class="latest">latest</span><br>
-                        <?php esc_html_e( 'Dark theme actually wired through (auto / light / dark — auto follows OS prefers-color-scheme). Mute toggle on the speaker icon. OS media keys (F8 / headphone buttons / lock-screen) play and pause via MediaSession. Current track polled from SomaFM and shown under the station description while playing. Save errors surface as a brief notice instead of being swallowed. Genre badge restyled as an inline pill.', 'radio' ); ?>
+                        <?php esc_html_e( 'My Radio layout polish + dropped dark-auto. Player no longer stretches edge-to-edge (max-width 880px); volume slider fixed width so the % label sits next to it; station dropdown capped at 360px; play-button icon shrunk to match the button text baseline; intro paragraph now fits one line. Removed the prefers-color-scheme dark-auto behaviour that was unreadable against WordPress\'s still-white postbox; theme=dark is still available as an explicit choice and now gives the player its own dark surface so it actually reads.', 'radio' ); ?>
+                    </li>
+                    <li>
+                        <span class="ver">v0.3.0</span> &mdash; 29 May 2026<br>
+                        <?php esc_html_e( 'Dark theme wired through. Mute toggle on the speaker icon. OS media keys (F8 / headphone buttons / lock-screen) play and pause via MediaSession. Current track polled from SomaFM and shown under the station description while playing. Save errors surface as a brief notice instead of being swallowed. Genre badge restyled as an inline pill.', 'radio' ); ?>
                     </li>
                     <li>
                         <span class="ver">v0.2.0</span> &mdash; 26 May 2026<br>

radio.php

@@ -5,7 +5,7 @@
  * Plugin Name: Radio
  * Plugin URI:  https://icanhelp.ie/radio
  * Description: A small, focused, free radio player for your WordPress admin. 44 SomaFM stations grouped by 10 genres — ambient, electronic, lounge, rock, metal, jazz, world, reggae, holiday, specials. Plays via HTML5 audio; volume + station choice persist per-user.
- * Version:     0.3.0
+ * Version:     0.3.1
  * Requires at least: 5.0
  * Requires PHP: 7.4
  * Author:      David Keane
@@ -20,7 +20,7 @@
 if ( ! defined( 'ABSPATH' ) ) { exit; }
 
 // Plugin coordinates.
-if ( ! defined( 'RADIO_VERSION' ) )   { define( 'RADIO_VERSION',   '0.3.0' ); }
+if ( ! defined( 'RADIO_VERSION' ) )   { define( 'RADIO_VERSION',   '0.3.1' ); }
 if ( ! defined( 'RADIO_FILE' ) )      { define( 'RADIO_FILE',      __FILE__ ); }
 if ( ! defined( 'RADIO_PATH' ) )      { define( 'RADIO_PATH',      plugin_dir_path( __FILE__ ) ); }
 if ( ! defined( 'RADIO_URL' ) )       { define( 'RADIO_URL',       plugin_dir_url( __FILE__ ) ); }