[grade=B] v1.9.1: YouTube links auto-render as video cards in beeps, replies, and quotes (click-to-play, nocookie embed)

assets/beep.css

@@ -736,6 +736,66 @@
   position: relative;
 }
 
+/* YouTube card (v1.9.1) */
+.beep-embed .beep-yt-card {
+  position: relative;
+  margin-top: 12px;
+  border-radius: 16px;
+  overflow: hidden;
+  border: 1px solid var(--beep-border);
+  cursor: pointer;
+  background: #000;
+  aspect-ratio: 16 / 9;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.beep-embed .beep-yt-thumb {
+  position: absolute;
+  inset: 0;
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+  top: 0;
+  left: 0;
+  margin: 0;
+}
+
+.beep-embed .beep-yt-play {
+  position: relative;
+  z-index: 1;
+  width: 68px;
+  height: 48px;
+  border-radius: 12px;
+  background: rgba(255, 0, 0, 0.85);
+  color: #fff;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
+  transition: transform 0.15s ease, background 0.15s ease;
+}
+
+.beep-embed .beep-yt-card:hover .beep-yt-play,
+.beep-embed .beep-yt-card:focus-visible .beep-yt-play {
+  background: #f00;
+  transform: scale(1.08);
+}
+
+.beep-embed .beep-yt-play svg {
+  fill: #fff;
+  margin-left: 4px;
+}
+
+.beep-embed .beep-yt-card iframe {
+  position: absolute;
+  inset: 0;
+  width: 100%;
+  height: 100%;
+  border: 0;
+}
+
 .beep-embed .beep-gif-embed img {
   width: 100%;
   height: auto;