v3: added localization, use global player for uploaded audio/video files

src/App.css

@@ -511,6 +511,85 @@
   display: block;
 }
 
+.file-preview-play-btn {
+  position: relative;
+  width: 100%;
+  padding: 0;
+  border: none;
+  background: #000;
+  cursor: pointer;
+  display: block;
+  border-radius: 8px;
+  overflow: hidden;
+}
+
+.file-preview-video-thumb {
+  width: 100%;
+  max-height: 480px;
+  object-fit: contain;
+  display: block;
+}
+
+.file-preview-play-btn .rich-content-play-overlay {
+  font-size: 3rem;
+}
+
+.audio-file-preview {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  padding: 0.75rem 1rem;
+  background: color-mix(in srgb, var(--color-accent) 8%, var(--color-surface) 92%);
+  border: 2px solid var(--color-border);
+  border-radius: 0 0 12px 12px;
+}
+
+.audio-file-preview--active .waveform-bar {
+  fill: var(--color-accent);
+}
+
+.audio-file-preview--active .audio-player-btn {
+  background: var(--color-accent-hover);
+}
+
+.file-preview-audio-btn {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  padding: 1rem 1.25rem;
+  border: 2px solid var(--color-border);
+  border-radius: 10px;
+  background: var(--color-bg);
+  cursor: pointer;
+  color: var(--color-text);
+  width: 100%;
+  font-size: 0.95rem;
+  transition: border-color 0.15s;
+}
+
+.file-preview-audio-btn:hover {
+  border-color: var(--color-accent);
+}
+
+.file-preview-audio-icon {
+  font-size: 1.5rem;
+  flex-shrink: 0;
+}
+
+.file-preview-audio-label {
+  flex: 1;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  text-align: left;
+}
+
+.file-preview-audio-play {
+  flex-shrink: 0;
+  opacity: 0.5;
+}
+
 /* ── Video player ── */
 .video-player {
   width: 100%;
@@ -639,6 +718,42 @@
   );
 }
 
+/* ── Waveform ── */
+.waveform-svg {
+  flex: 1;
+  min-width: 0;
+  height: 48px;
+  cursor: pointer;
+  display: block;
+}
+
+.waveform-bar {
+  fill: color-mix(in srgb, var(--color-accent) 25%, var(--color-border) 75%);
+}
+
+.waveform-bar--played {
+  fill: var(--color-accent);
+}
+
+.waveform-skeleton {
+  flex: 1;
+  min-width: 0;
+  height: 48px;
+  border-radius: 3px;
+  background: color-mix(in srgb, var(--color-accent) 12%, var(--color-border) 88%);
+  position: relative;
+  overflow: hidden;
+  cursor: pointer;
+}
+
+.waveform-skeleton-fill {
+  position: absolute;
+  inset: 0 auto 0 0;
+  background: var(--color-accent);
+  opacity: 0.45;
+  transition: width 0.1s linear;
+}
+
 .audio-player-track--volume {
   flex: 1 1 100px;
   max-width: 120px;
@@ -824,7 +939,8 @@
 .global-player--reduced .global-player-body {
   grid-template-rows: 0fr;
 }
-.global-player-iframe-wrap {
+.global-player-iframe-wrap,
+.global-player-media-wrap {
   overflow: hidden;
   min-height: 0;
   border-radius: 0 0 8px 8px;
@@ -1567,10 +1683,10 @@ body.has-player .fab-new {
   margin: 1rem auto 0 auto;
   max-width: 860px;
   padding: 0.75rem 1rem;
-  border: 1px solid color-mix(in srgb, var(--color-danger) 30%, transparent);
+  border: none;
   border-radius: 10px;
-  background: color-mix(in srgb, var(--color-danger-bg) 92%, white 8%);
-  color: var(--color-text);
+  background: var(--color-danger-bg);
+  color: var(--color-on-accent);
   line-height: 1.5;
   overflow-wrap: anywhere;
   word-break: break-word;
@@ -2256,6 +2372,22 @@ body.has-player .fab-new {
   opacity: 0.7;
 }
 
+/* Fill the 48×48 preview box and center content for media buttons */
+.dump-card-preview .rich-content-thumbnail-btn {
+  width: 100%;
+  height: 100%;
+  align-items: center;
+  justify-content: center;
+}
+
+.dump-card-preview .rich-content-compact-thumbnail {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+  border-radius: 0;
+  border: none;
+}
+
 /* ── Shared card body ── */
 .dump-card-body,
 .playlist-card-body {
@@ -2494,6 +2626,8 @@ body.has-player .fab-new {
 .modal-body {
   padding: 1rem 1.25rem;
   flex: 1 1 auto;
+  min-height: 0;
+  overflow-y: auto;
   display: flex;
   flex-direction: column;
   gap: 0.75rem;