fix: play/pause button size consistency, add a real volume slider

the play/pause button had no fixed width, so swapping the single-character play glyph for the two-character pause glyph (with the fonts normal spacing between them) visibly widened the button. now a fixed 2.4ch width with tightened tracking on the pause state.\n\nmute only ever toggled — there was no way to set a level. added a small click/drag bar next to it (same interaction as the scrub bar), synced with the video elements own volume/muted state via the volumechange event so it stays correct regardless of how its changed.

assets/js/player.js

@@ -15,6 +15,8 @@
     var fill = root.querySelector(".player__fill");
     var time = root.querySelector(".player__time");
     var mute = root.querySelector(".player__mute");
+    var vol = root.querySelector(".player__vol");
+    var volFill = root.querySelector(".player__volfill");
     var full = root.querySelector(".player__full");
     if (!v) return;
 
@@ -51,7 +53,33 @@
       var r = scrub.getBoundingClientRect();
       if (v.duration) v.currentTime = ((e.clientX - r.left) / r.width) * v.duration;
     });
-    if (mute) mute.addEventListener("click", function () { v.muted = !v.muted; mute.textContent = v.muted ? "muted" : "vol"; });
+    // volume level, not just mute — click or drag the little bar next to
+    // the mute button, same interaction as the scrub bar
+    function syncVol() {
+      var level = v.muted ? 0 : v.volume;
+      if (volFill) volFill.style.width = (level * 100) + "%";
+      if (mute) mute.textContent = (v.muted || v.volume === 0) ? "muted" : "vol";
+    }
+    function setVolFromEvent(e) {
+      var r = vol.getBoundingClientRect();
+      var level = Math.min(1, Math.max(0, (e.clientX - r.left) / r.width));
+      v.volume = level;
+      v.muted = level <= 0;
+    }
+    if (vol) {
+      vol.addEventListener("click", setVolFromEvent);
+      vol.addEventListener("mousedown", function (e) {
+        setVolFromEvent(e);
+        function onMove(ev) { setVolFromEvent(ev); }
+        function onUp() { document.removeEventListener("mousemove", onMove); document.removeEventListener("mouseup", onUp); }
+        document.addEventListener("mousemove", onMove);
+        document.addEventListener("mouseup", onUp);
+      });
+    }
+    v.addEventListener("volumechange", syncVol);
+    syncVol();
+
+    if (mute) mute.addEventListener("click", function () { v.muted = !v.muted; syncVol(); });
     if (full) full.addEventListener("click", function () {
       if (document.fullscreenElement) document.exitFullscreen();
       else if (root.requestFullscreen) root.requestFullscreen();