updated

static/index.html

@@ -165,6 +165,12 @@
 					</svg>
 					<span>DEBUG</span>
 				</button>
+				<button id="hangup-btn" class="hangup-btn" title="Hang up and close the tab">
+					<svg viewBox="0 0 24 24" fill="currentColor">
+						<path d="M12 9c-1.6 0-3.15.25-4.6.72v3.1c0 .39-.23.74-.56.9-.98.49-1.87 1.12-2.66 1.85-.18.18-.43.28-.7.28-.28 0-.53-.11-.71-.29L.29 13.08c-.18-.17-.29-.42-.29-.7 0-.28.11-.53.29-.71C3.34 8.78 7.46 7 12 7s8.66 1.78 11.71 4.67c.18.18.29.43.29.71 0 .28-.11.53-.29.71l-2.48 2.48c-.18.18-.43.29-.71.29-.27 0-.52-.1-.7-.28-.79-.74-1.69-1.36-2.67-1.85-.33-.16-.56-.5-.56-.9v-3.1C15.15 9.25 13.6 9 12 9z"/>
+					</svg>
+					<span>HANGUP</span>
+				</button>
 			</div>
 		</div>
 	</div>

static/js/client.js

@@ -85,6 +85,21 @@ document.addEventListener('DOMContentLoaded', async () => {
 			toggleDebugModal();
 		});
 	}
+
+	// Hangup button - cleanly leaves and tries to close the tab.
+	const hangupBtn = $('hangup-btn');
+	if (hangupBtn) {
+		const hangup = () => {
+			try { send({ type: 'leave' }); } catch (e) {}
+			try { state.ws?.close(); } catch (e) {}
+			window.close();
+			// window.close() is a no-op if the tab wasn't opened by script. As a
+			// fallback, navigate away so they at least leave the chat surface.
+			setTimeout(() => { try { location.href = 'about:blank'; } catch (e) {} }, 50);
+		};
+		hangupBtn.addEventListener('click', hangup);
+		hangupBtn.addEventListener('touchend', (e) => { e.preventDefault(); hangup(); });
+	}
 	
 	// Debug modal close button
 	$('debug-close')?.addEventListener('click', closeDebugModal);

static/style.css

@@ -2200,6 +2200,42 @@ body.pong-mode.schizo-mode .video-tile video {
 	letter-spacing: 1px;
 }
 
+.hangup-btn {
+	display: flex;
+	align-items: center;
+	justify-content: center;
+	gap: 8px;
+	width: 100%;
+	padding: 10px 16px;
+	margin-top: 8px;
+	background: var(--bg-tertiary);
+	border: 1px solid var(--border);
+	border-radius: 6px;
+	color: var(--text-muted);
+	font-size: 13px;
+	font-weight: 600;
+	cursor: pointer;
+	transition: all 0.2s;
+	text-transform: uppercase;
+	letter-spacing: 1px;
+}
+
+.hangup-btn svg {
+	width: 18px;
+	height: 18px;
+	transform: rotate(135deg);
+}
+
+.hangup-btn:hover {
+	background: rgba(239, 68, 68, 0.15);
+	border-color: #ef4444;
+	color: #ef4444;
+}
+
+.hangup-btn:active {
+	background: rgba(239, 68, 68, 0.25);
+}
+
 .record-call-btn svg { width: 14px; height: 14px; }
 
 .record-call-btn:hover {