Replace HTTP status codes with IRC numeric replies in command handlers (closes #54)

IRC command handlers now return proper IRC numeric reply codes per
RFC 1459/2812 instead of HTTP status codes:

- 401 ERR_NOSUCHNICK for unknown DM targets
- 403 ERR_NOSUCHCHANNEL for invalid/missing channels
- 411 ERR_NORECIPIENT for missing message recipients
- 412 ERR_NOTEXTTOSEND for missing message body
- 421 ERR_UNKNOWNCOMMAND for unknown/empty commands
- 431 ERR_NONICKNAMEGIVEN for missing nick in NICK command
- 432 ERR_ERRONEUSNICKNAME for invalid nick format
- 433 ERR_NICKNAMEINUSE for taken nicks
- 442 ERR_NOTONCHANNEL for non-member channel actions
- 461 ERR_NEEDMOREPARAMS for missing required parameters

Error responses use the IRC numeric format:
  {"command":"4xx","from":"server","to":"nick","body":["..."],"params":[...]}

HTTP status codes are now reserved for transport-level concerns:
- 400 for malformed HTTP requests (bad JSON)
- 401 for authentication failures
- 500 for internal server errors

Successful message sends changed from 201 to 200 since HTTP
status codes should not encode IRC-level semantics.

internal/handlers/api.go

@@ -28,6 +28,18 @@ const (
 	defaultHistLimit   = 50
 	maxHistLimit       = 500
 	cmdPrivmsg         = "PRIVMSG"
+
+	// IRC numeric reply codes per RFC 1459/2812.
+	ircErrNoSuchNick       = "401"
+	ircErrNoSuchChannel    = "403"
+	ircErrNoRecipient      = "411"
+	ircErrNoTextToSend     = "412"
+	ircErrUnknownCommand   = "421"
+	ircErrNoNicknameGiven  = "431"
+	ircErrErroneusNickname = "432"
+	ircErrNicknameInUse    = "433"
+	ircErrNotOnChannel     = "442"
+	ircErrNeedMoreParams   = "461"
 )
 
 func (hdlr *Handlers) maxBodySize() int64 {
@@ -63,6 +75,43 @@ func (hdlr *Handlers) authSession(
 	return sessionID, clientID, nick, nil
 }
 
+// serverName returns the configured server name or the
+// default "neoirc".
+func (hdlr *Handlers) serverName() string {
+	if hdlr.params.Config.ServerName != "" {
+		return hdlr.params.Config.ServerName
+	}
+
+	return "neoirc"
+}
+
+// respondIRCError sends an IRC numeric error reply as a
+// JSON response with HTTP 200 OK. This is used for errors
+// in IRC command processing (as opposed to HTTP transport
+// errors). The params slice contains IRC-style positional
+// parameters (e.g. the target nick or channel).
+func (hdlr *Handlers) respondIRCError(
+	writer http.ResponseWriter,
+	request *http.Request,
+	nick, numeric, msg string,
+	params ...string,
+) {
+	resp := map[string]any{
+		"command": numeric,
+		"from":    hdlr.serverName(),
+		"to":      nick,
+		"body":    []string{msg},
+	}
+
+	if len(params) > 0 {
+		resp["params"] = params
+	}
+
+	hdlr.respondJSON(
+		writer, request, resp, http.StatusOK,
+	)
+}
+
 func (hdlr *Handlers) requireAuth(
 	writer http.ResponseWriter,
 	request *http.Request,
@@ -226,11 +275,7 @@ func (hdlr *Handlers) deliverMOTD(
 	clientID, sessionID int64,
 ) {
 	motd := hdlr.params.Config.MOTD
-	serverName := hdlr.params.Config.ServerName
+	serverName := hdlr.serverName()
-
-	if serverName == "" {
-		serverName = "neoirc"
-	}
 
 	if motd == "" {
 		return
@@ -557,10 +602,10 @@ func (hdlr *Handlers) HandleSendCommand() http.HandlerFunc {
 		payload.To = strings.TrimSpace(payload.To)
 
 		if payload.Command == "" {
-			hdlr.respondError(
+			hdlr.respondIRCError(
 				writer, request,
-				"command required",
+				nick, ircErrUnknownCommand,
-				http.StatusBadRequest,
+				"No command given",
 			)
 
 			return
@@ -631,10 +676,11 @@ func (hdlr *Handlers) dispatchCommand(
 			},
 			http.StatusOK)
 	default:
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"unknown command: "+command,
+			nick, ircErrUnknownCommand,
-			http.StatusBadRequest,
+			command+" :Unknown command",
+			command,
 		)
 	}
 }
@@ -648,10 +694,10 @@ func (hdlr *Handlers) handlePrivmsg(
 	bodyLines func() []string,
 ) {
 	if target == "" {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"to field required",
+			nick, ircErrNoRecipient,
-			http.StatusBadRequest,
+			"No recipient given ("+command+")",
 		)
 
 		return
@@ -659,10 +705,10 @@ func (hdlr *Handlers) handlePrivmsg(
 
 	lines := bodyLines()
 	if len(lines) == 0 {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"body required",
+			nick, ircErrNoTextToSend,
-			http.StatusBadRequest,
+			"No text to send",
 		)
 
 		return
@@ -694,10 +740,11 @@ func (hdlr *Handlers) handleChannelMsg(
 		request.Context(), target,
 	)
 	if err != nil {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"channel not found",
+			nick, ircErrNoSuchChannel,
-			http.StatusNotFound,
+			"No such channel",
+			target,
 		)
 
 		return
@@ -720,10 +767,11 @@ func (hdlr *Handlers) handleChannelMsg(
 	}
 
 	if !isMember {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"not a member of this channel",
+			nick, ircErrNotOnChannel,
-			http.StatusForbidden,
+			"You're not on that channel",
+			target,
 		)
 
 		return
@@ -761,7 +809,7 @@ func (hdlr *Handlers) handleChannelMsg(
 
 	hdlr.respondJSON(writer, request,
 		map[string]string{"id": msgUUID, "status": "sent"},
-		http.StatusCreated)
+		http.StatusOK)
 }
 
 func (hdlr *Handlers) handleDirectMsg(
@@ -775,10 +823,11 @@ func (hdlr *Handlers) handleDirectMsg(
 		request.Context(), target,
 	)
 	if err != nil {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"user not found",
+			nick, ircErrNoSuchNick,
-			http.StatusNotFound,
+			"No such nick/channel",
+			target,
 		)
 
 		return
@@ -805,7 +854,7 @@ func (hdlr *Handlers) handleDirectMsg(
 
 	hdlr.respondJSON(writer, request,
 		map[string]string{"id": msgUUID, "status": "sent"},
-		http.StatusCreated)
+		http.StatusOK)
 }
 
 func (hdlr *Handlers) handleJoin(
@@ -815,10 +864,11 @@ func (hdlr *Handlers) handleJoin(
 	nick, target string,
 ) {
 	if target == "" {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"to field required",
+			nick, ircErrNeedMoreParams,
-			http.StatusBadRequest,
+			"Not enough parameters",
+			"JOIN",
 		)
 
 		return
@@ -830,10 +880,11 @@ func (hdlr *Handlers) handleJoin(
 	}
 
 	if !validChannelRe.MatchString(channel) {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"invalid channel name",
+			nick, ircErrNoSuchChannel,
-			http.StatusBadRequest,
+			"No such channel",
+			channel,
 		)
 
 		return
@@ -895,10 +946,11 @@ func (hdlr *Handlers) handlePart(
 	body json.RawMessage,
 ) {
 	if target == "" {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"to field required",
+			nick, ircErrNeedMoreParams,
-			http.StatusBadRequest,
+			"Not enough parameters",
+			"PART",
 		)
 
 		return
@@ -913,10 +965,11 @@ func (hdlr *Handlers) handlePart(
 		request.Context(), channel,
 	)
 	if err != nil {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"channel not found",
+			nick, ircErrNoSuchChannel,
-			http.StatusNotFound,
+			"No such channel",
+			channel,
 		)
 
 		return
@@ -967,10 +1020,10 @@ func (hdlr *Handlers) handleNick(
 ) {
 	lines := bodyLines()
 	if len(lines) == 0 {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"body required (new nick)",
+			nick, ircErrNoNicknameGiven,
-			http.StatusBadRequest,
+			"No nickname given",
 		)
 
 		return
@@ -979,10 +1032,11 @@ func (hdlr *Handlers) handleNick(
 	newNick := strings.TrimSpace(lines[0])
 
 	if !validNickRe.MatchString(newNick) {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"invalid nick",
+			nick, ircErrErroneusNickname,
-			http.StatusBadRequest,
+			"Erroneous nickname",
+			newNick,
 		)
 
 		return
@@ -1003,10 +1057,11 @@ func (hdlr *Handlers) handleNick(
 	)
 	if err != nil {
 		if strings.Contains(err.Error(), "UNIQUE") {
-			hdlr.respondError(
+			hdlr.respondIRCError(
 				writer, request,
-				"nick already in use",
+				nick, ircErrNicknameInUse,
-				http.StatusConflict,
+				"Nickname is already in use",
+				newNick,
 			)
 
 			return
@@ -1093,10 +1148,11 @@ func (hdlr *Handlers) handleTopic(
 	bodyLines func() []string,
 ) {
 	if target == "" {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"to field required",
+			nick, ircErrNeedMoreParams,
-			http.StatusBadRequest,
+			"Not enough parameters",
+			"TOPIC",
 		)
 
 		return
@@ -1104,10 +1160,11 @@ func (hdlr *Handlers) handleTopic(
 
 	lines := bodyLines()
 	if len(lines) == 0 {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"body required (topic text)",
+			nick, ircErrNeedMoreParams,
-			http.StatusBadRequest,
+			"Not enough parameters",
+			"TOPIC",
 		)
 
 		return
@@ -1140,10 +1197,11 @@ func (hdlr *Handlers) handleTopic(
 		request.Context(), channel,
 	)
 	if err != nil {
-		hdlr.respondError(
+		hdlr.respondIRCError(
 			writer, request,
-			"channel not found",
+			nick, ircErrNoSuchChannel,
-			http.StatusNotFound,
+			"No such channel",
+			channel,
 		)
 
 		return

internal/handlers/api_test.go

@@ -668,11 +668,18 @@ func TestJoinMissingTo(t *testing.T) {
 	tserver := newTestServer(t)
 	token := tserver.createSession("joiner3")
 
-	status, _ := tserver.sendCommand(
+	status, result := tserver.sendCommand(
 		token, map[string]any{commandKey: joinCmd},
 	)
-	if status != http.StatusBadRequest {
+	if status != http.StatusOK {
-		t.Fatalf("expected 400, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "461" {
+		t.Fatalf(
+			"expected IRC 461, got %v",
+			result[commandKey],
+		)
 	}
 }
 
@@ -699,9 +706,9 @@ func TestChannelMessage(t *testing.T) {
 			bodyKey:    []string{"hello world"},
 		},
 	)
-	if status != http.StatusCreated {
+	if status != http.StatusOK {
 		t.Fatalf(
-			"expected 201, got %d: %v", status, result,
+			"expected 200, got %d: %v", status, result,
 		)
 	}
 
@@ -728,11 +735,18 @@ func TestMessageMissingBody(t *testing.T) {
 		commandKey: joinCmd, toKey: "#test",
 	})
 
-	status, _ := tserver.sendCommand(token, map[string]any{
+	status, result := tserver.sendCommand(token, map[string]any{
 		commandKey: privmsgCmd, toKey: "#test",
 	})
-	if status != http.StatusBadRequest {
+	if status != http.StatusOK {
-		t.Fatalf("expected 400, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "412" {
+		t.Fatalf(
+			"expected IRC 412, got %v",
+			result[commandKey],
+		)
 	}
 }
 
@@ -740,12 +754,19 @@ func TestMessageMissingTo(t *testing.T) {
 	tserver := newTestServer(t)
 	token := tserver.createSession("noto")
 
-	status, _ := tserver.sendCommand(token, map[string]any{
+	status, result := tserver.sendCommand(token, map[string]any{
 		commandKey: privmsgCmd,
 		bodyKey:    []string{"hello"},
 	})
-	if status != http.StatusBadRequest {
+	if status != http.StatusOK {
-		t.Fatalf("expected 400, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "411" {
+		t.Fatalf(
+			"expected IRC 411, got %v",
+			result[commandKey],
+		)
 	}
 }
 
@@ -760,7 +781,7 @@ func TestNonMemberCannotSend(t *testing.T) {
 	})
 
 	// Alice tries to send without joining.
-	status, _ := tserver.sendCommand(
+	status, result := tserver.sendCommand(
 		aliceToken,
 		map[string]any{
 			commandKey: privmsgCmd,
@@ -768,8 +789,15 @@ func TestNonMemberCannotSend(t *testing.T) {
 			bodyKey:    []string{"sneaky"},
 		},
 	)
-	if status != http.StatusForbidden {
+	if status != http.StatusOK {
-		t.Fatalf("expected 403, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "442" {
+		t.Fatalf(
+			"expected IRC 442, got %v",
+			result[commandKey],
+		)
 	}
 }
 
@@ -786,9 +814,9 @@ func TestDirectMessage(t *testing.T) {
 			bodyKey:    []string{"hey bob"},
 		},
 	)
-	if status != http.StatusCreated {
+	if status != http.StatusOK {
 		t.Fatalf(
-			"expected 201, got %d: %v", status, result,
+			"expected 200, got %d: %v", status, result,
 		)
 	}
 
@@ -818,13 +846,20 @@ func TestDMToNonexistentUser(t *testing.T) {
 	tserver := newTestServer(t)
 	token := tserver.createSession("dmsender")
 
-	status, _ := tserver.sendCommand(token, map[string]any{
+	status, result := tserver.sendCommand(token, map[string]any{
 		commandKey: privmsgCmd,
 		toKey:      "nobody",
 		bodyKey:    []string{"hello?"},
 	})
-	if status != http.StatusNotFound {
+	if status != http.StatusOK {
-		t.Fatalf("expected 404, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "401" {
+		t.Fatalf(
+			"expected IRC 401, got %v",
+			result[commandKey],
+		)
 	}
 }
 
@@ -871,12 +906,19 @@ func TestNickCollision(t *testing.T) {
 
 	tserver.createSession("taken_nick")
 
-	status, _ := tserver.sendCommand(token, map[string]any{
+	status, result := tserver.sendCommand(token, map[string]any{
 		commandKey: "NICK",
 		bodyKey:    []string{"taken_nick"},
 	})
-	if status != http.StatusConflict {
+	if status != http.StatusOK {
-		t.Fatalf("expected 409, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "433" {
+		t.Fatalf(
+			"expected IRC 433, got %v",
+			result[commandKey],
+		)
 	}
 }
 
@@ -884,12 +926,19 @@ func TestNickInvalid(t *testing.T) {
 	tserver := newTestServer(t)
 	token := tserver.createSession("nickval")
 
-	status, _ := tserver.sendCommand(token, map[string]any{
+	status, result := tserver.sendCommand(token, map[string]any{
 		commandKey: "NICK",
 		bodyKey:    []string{"bad nick!"},
 	})
-	if status != http.StatusBadRequest {
+	if status != http.StatusOK {
-		t.Fatalf("expected 400, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "432" {
+		t.Fatalf(
+			"expected IRC 432, got %v",
+			result[commandKey],
+		)
 	}
 }
 
@@ -897,11 +946,18 @@ func TestNickEmptyBody(t *testing.T) {
 	tserver := newTestServer(t)
 	token := tserver.createSession("nicknobody")
 
-	status, _ := tserver.sendCommand(
+	status, result := tserver.sendCommand(
 		token, map[string]any{commandKey: "NICK"},
 	)
-	if status != http.StatusBadRequest {
+	if status != http.StatusOK {
-		t.Fatalf("expected 400, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "431" {
+		t.Fatalf(
+			"expected IRC 431, got %v",
+			result[commandKey],
+		)
 	}
 }
 
@@ -938,12 +994,19 @@ func TestTopicMissingTo(t *testing.T) {
 	tserver := newTestServer(t)
 	token := tserver.createSession("topicnoto")
 
-	status, _ := tserver.sendCommand(token, map[string]any{
+	status, result := tserver.sendCommand(token, map[string]any{
 		commandKey: "TOPIC",
 		bodyKey:    []string{"topic"},
 	})
-	if status != http.StatusBadRequest {
+	if status != http.StatusOK {
-		t.Fatalf("expected 400, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "461" {
+		t.Fatalf(
+			"expected IRC 461, got %v",
+			result[commandKey],
+		)
 	}
 }
 
@@ -955,11 +1018,18 @@ func TestTopicMissingBody(t *testing.T) {
 		commandKey: joinCmd, toKey: "#topictest",
 	})
 
-	status, _ := tserver.sendCommand(token, map[string]any{
+	status, result := tserver.sendCommand(token, map[string]any{
 		commandKey: "TOPIC", toKey: "#topictest",
 	})
-	if status != http.StatusBadRequest {
+	if status != http.StatusOK {
-		t.Fatalf("expected 400, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "461" {
+		t.Fatalf(
+			"expected IRC 461, got %v",
+			result[commandKey],
+		)
 	}
 }
 
@@ -1027,11 +1097,18 @@ func TestUnknownCommand(t *testing.T) {
 	tserver := newTestServer(t)
 	token := tserver.createSession("cmdtest")
 
-	status, _ := tserver.sendCommand(
+	status, result := tserver.sendCommand(
 		token, map[string]any{commandKey: "BOGUS"},
 	)
-	if status != http.StatusBadRequest {
+	if status != http.StatusOK {
-		t.Fatalf("expected 400, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "421" {
+		t.Fatalf(
+			"expected IRC 421, got %v",
+			result[commandKey],
+		)
 	}
 }
 
@@ -1039,11 +1116,18 @@ func TestEmptyCommand(t *testing.T) {
 	tserver := newTestServer(t)
 	token := tserver.createSession("emptycmd")
 
-	status, _ := tserver.sendCommand(
+	status, result := tserver.sendCommand(
 		token, map[string]any{commandKey: ""},
 	)
-	if status != http.StatusBadRequest {
+	if status != http.StatusOK {
-		t.Fatalf("expected 400, got %d", status)
+		t.Fatalf("expected 200, got %d", status)
+	}
+
+	if result[commandKey] != "421" {
+		t.Fatalf(
+			"expected IRC 421, got %v",
+			result[commandKey],
+		)
 	}
 }
 

web/dist/style.css

@@ -1,40 +1,28 @@
-* {
+* { margin: 0; padding: 0; box-sizing: border-box; }
-  margin: 0;
-  padding: 0;
-  box-sizing: border-box;
-}
 
 :root {
-  --bg: #0a0e14;
+  --bg: #1a1a2e;
-  --bg-secondary: #0d1117;
+  --bg-secondary: #16213e;
-  --bg-input: #161b22;
+  --bg-input: #0f3460;
-  --bg-highlight: #1a2030;
+  --text: #e0e0e0;
-  --text: #c9d1d9;
+  --text-muted: #888;
-  --text-muted: #6e7681;
+  --accent: #e94560;
-  --accent: #58a6ff;
+  --accent2: #0f3460;
-  --accent-dim: #1f6feb;
+  --border: #2a2a4a;
-  --border: #21262d;
+  --nick: #53a8b6;
-  --nick: #79c0ff;
+  --timestamp: #666;
-  --timestamp: #484f58;
+  --tab-active: #e94560;
-  --tab-active: #58a6ff;
+  --tab-bg: #16213e;
-  --tab-bg: #0d1117;
+  --tab-hover: #1a1a3e;
-  --tab-hover: #161b22;
+  --topic-bg: #121a30;
-  --topic-bg: #0d1117;
+  --unread-bg: #e94560;
-  --unread-bg: #da3633;
+  --warn: #f0ad4e;
-  --warn: #d29922;
-  --op-color: #f0883e;
-  --voice-color: #3fb950;
-  --action-color: #bc8cff;
-  --system-color: #484f58;
 }
 
-html,
+html, body, #root {
-body,
-#root {
   height: 100%;
-  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Courier New',
+  font-family: 'Courier New', Courier, monospace;
-    Courier, monospace;
+  font-size: 14px;
-  font-size: 13px;
   background: var(--bg);
   color: var(--text);
 }
@@ -69,19 +57,15 @@ body,
   padding: 10px 24px;
   font-size: 16px;
   font-family: inherit;
-  background: var(--accent-dim);
+  background: var(--accent);
   border: none;
   color: white;
   border-radius: 4px;
   cursor: pointer;
 }
 
-.login-screen button:hover {
-  background: var(--accent);
-}
-
 .login-screen .error {
-  color: var(--unread-bg);
+  color: var(--accent);
 }
 
 .login-screen .motd {
@@ -105,63 +89,36 @@ body,
   border-bottom: 1px solid var(--border);
   overflow-x: auto;
   flex-shrink: 0;
-  align-items: stretch;
+  align-items: center;
-  min-height: 32px;
-}
-
-.tab-bar::-webkit-scrollbar {
-  height: 2px;
-}
-
-.tab-bar::-webkit-scrollbar-thumb {
-  background: var(--border);
 }
 
 .tab {
-  display: flex;
+  padding: 8px 16px;
-  align-items: center;
-  padding: 6px 12px;
   cursor: pointer;
   border-bottom: 2px solid transparent;
   white-space: nowrap;
   color: var(--text-muted);
   user-select: none;
-  font-size: 12px;
+  position: relative;
-  gap: 6px;
-  transition:
-    background 0.1s,
-    color 0.1s;
 }
 
 .tab:hover {
   background: var(--tab-hover);
-  color: var(--text);
 }
 
 .tab.active {
   color: var(--text);
   border-bottom-color: var(--tab-active);
-  background: var(--bg-highlight);
-}
-
-.tab.server {
-  font-weight: bold;
-}
-
-.tab .tab-name {
-  overflow: hidden;
-  text-overflow: ellipsis;
 }
 
 .tab .close-btn {
+  margin-left: 8px;
   color: var(--text-muted);
-  font-size: 14px;
+  font-size: 12px;
-  line-height: 1;
-  flex-shrink: 0;
 }
 
 .tab .close-btn:hover {
-  color: var(--unread-bg);
+  color: var(--accent);
 }
 
 .tab .unread-badge {
@@ -170,22 +127,19 @@ body,
   color: white;
   font-size: 10px;
   font-weight: bold;
-  padding: 0 5px;
+  padding: 1px 5px;
   border-radius: 8px;
+  margin-left: 6px;
   min-width: 16px;
   text-align: center;
-  line-height: 16px;
-  flex-shrink: 0;
 }
 
 /* Connection status */
 .connection-status {
-  display: flex;
+  padding: 4px 12px;
-  align-items: center;
-  padding: 0 12px;
   background: var(--warn);
-  color: var(--bg);
+  color: #1a1a2e;
-  font-size: 11px;
+  font-size: 12px;
   font-weight: bold;
   white-space: nowrap;
   flex-shrink: 0;
@@ -193,7 +147,7 @@ body,
 
 /* Topic bar */
 .topic-bar {
-  padding: 4px 12px;
+  padding: 6px 12px;
   background: var(--topic-bg);
   border-bottom: 1px solid var(--border);
   color: var(--text-muted);
@@ -204,11 +158,6 @@ body,
   flex-shrink: 0;
 }
 
-.topic-bar .topic-label {
-  color: var(--accent);
-  font-weight: bold;
-}
-
 /* Content area */
 .content {
   display: flex;
@@ -222,210 +171,147 @@ body,
   display: flex;
   flex-direction: column;
   overflow: hidden;
-  min-width: 0;
 }
 
 .messages {
   flex: 1;
   overflow-y: auto;
-  padding: 4px 0;
+  padding: 8px 12px;
-}
-
-.messages::-webkit-scrollbar {
-  width: 6px;
-}
-
-.messages::-webkit-scrollbar-thumb {
-  background: var(--border);
-  border-radius: 3px;
 }
 
 .message {
-  padding: 1px 12px;
+  padding: 2px 0;
-  line-height: 1.5;
+  line-height: 1.4;
   word-wrap: break-word;
 }
 
-.message:hover {
-  background: var(--bg-highlight);
-}
-
 .message .timestamp {
   color: var(--timestamp);
-  font-size: 11px;
+  font-size: 12px;
-  margin-right: 6px;
+  margin-right: 8px;
 }
 
 .message .nick {
+  color: var(--nick);
   font-weight: bold;
-  margin-right: 6px;
+  margin-right: 8px;
 }
 
-.message .nick::before {
+.message .nick::before { content: '<'; }
-  content: '<';
+.message .nick::after { content: '>'; }
-  color: var(--text-muted);
-}
-
-.message .nick::after {
-  content: '>';
-  color: var(--text-muted);
-}
 
 .message.system {
-  color: var(--system-color);
+  color: var(--text-muted);
   font-style: italic;
 }
 
-.message.system .timestamp {
+.message.system .nick {
-  color: var(--timestamp);
+  color: var(--text-muted);
 }
 
-.message.system .content::before {
+.message.system .nick::before,
-  content: '*** ';
+.message.system .nick::after { content: ''; }
-}
 
-.message.action {
+/* Input */
-  color: var(--action-color);
-}
-
-.message.action .timestamp {
-  color: var(--timestamp);
-}
-
-.message.action .action-nick {
-  font-weight: bold;
-}
-
-/* Input bar — full width at bottom */
 .input-bar {
   display: flex;
-  align-items: center;
   border-top: 1px solid var(--border);
   background: var(--bg-secondary);
   flex-shrink: 0;
 }
 
-.input-bar .input-nick {
-  padding: 0 8px 0 12px;
-  color: var(--accent);
-  font-weight: bold;
-  white-space: nowrap;
-  flex-shrink: 0;
-  font-size: 13px;
-}
-
-.input-bar .input-nick::after {
-  content: '>';
-  color: var(--text-muted);
-  margin-left: 1px;
-}
-
 .input-bar input {
   flex: 1;
-  padding: 8px 8px;
+  padding: 10px 12px;
   font-family: inherit;
-  font-size: 13px;
+  font-size: 14px;
-  background: transparent;
+  background: var(--bg-input);
   border: none;
   color: var(--text);
   outline: none;
 }
 
-.input-bar input::placeholder {
+.input-bar button {
-  color: var(--text-muted);
+  padding: 10px 16px;
+  font-family: inherit;
+  background: var(--accent);
+  border: none;
+  color: white;
+  cursor: pointer;
 }
 
 /* User list */
 .user-list {
-  width: 170px;
+  width: 160px;
   background: var(--bg-secondary);
   border-left: 1px solid var(--border);
-  display: flex;
+  overflow-y: auto;
-  flex-direction: column;
+  padding: 8px;
   flex-shrink: 0;
 }
 
-.user-list-header {
+.user-list h3 {
-  padding: 6px 10px;
   color: var(--text-muted);
   font-size: 11px;
   text-transform: uppercase;
-  letter-spacing: 0.5px;
+  margin-bottom: 8px;
-  border-bottom: 1px solid var(--border);
+  letter-spacing: 1px;
-  font-weight: bold;
-  flex-shrink: 0;
-}
-
-.user-list-entries {
-  overflow-y: auto;
-  flex: 1;
-  padding: 4px 0;
-}
-
-.user-list-entries::-webkit-scrollbar {
-  width: 4px;
-}
-
-.user-list-entries::-webkit-scrollbar-thumb {
-  background: var(--border);
 }
 
 .user-list .user {
-  padding: 2px 10px;
+  padding: 3px 4px;
-  font-size: 12px;
+  color: var(--nick);
+  font-size: 13px;
   cursor: pointer;
-  white-space: nowrap;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  color: var(--text);
 }
 
 .user-list .user:hover {
   background: var(--tab-hover);
 }
 
-.user-list .user.op {
+/* Server tab */
-  color: var(--op-color);
-}
-
-.user-list .user.voice {
-  color: var(--voice-color);
-}
-
-/* Server tab messages */
 .server-messages {
   color: var(--text-muted);
-  padding: 8px 12px;
+  padding: 12px;
   white-space: pre-wrap;
   overflow-y: auto;
   flex: 1;
 }
 
-.server-messages .message {
+/* Channel join dialog */
-  padding: 1px 0;
+.join-dialog {
+  padding: 12px;
+  display: flex;
+  gap: 8px;
+  background: var(--bg-secondary);
+  border-bottom: 1px solid var(--border);
+  margin-left: auto;
 }
 
-.server-messages .message:hover {
+.join-dialog input {
-  background: var(--bg-highlight);
+  padding: 6px 10px;
+  font-family: inherit;
+  font-size: 13px;
+  background: var(--bg-input);
+  border: 1px solid var(--border);
+  color: var(--text);
+  border-radius: 3px;
+  width: 200px;
+}
+
+.join-dialog button {
+  padding: 6px 14px;
+  font-family: inherit;
+  font-size: 13px;
+  background: var(--accent2);
+  border: none;
+  color: var(--text);
+  border-radius: 3px;
+  cursor: pointer;
 }
 
 /* Responsive */
 @media (max-width: 600px) {
-  .user-list {
+  .user-list { display: none; }
-    display: none;
+  .tab { padding: 6px 10px; font-size: 13px; }
-  }
-
-  .tab {
-    padding: 5px 8px;
-    font-size: 11px;
-  }
-
-  .input-bar .input-nick {
-    padding-left: 8px;
-    font-size: 12px;
-  }
-
-  .input-bar input {
-    font-size: 12px;
-  }
 }

web/src/style.css

@@ -1,40 +1,28 @@
-* {
+* { margin: 0; padding: 0; box-sizing: border-box; }
-  margin: 0;
-  padding: 0;
-  box-sizing: border-box;
-}
 
 :root {
-  --bg: #0a0e14;
+  --bg: #1a1a2e;
-  --bg-secondary: #0d1117;
+  --bg-secondary: #16213e;
-  --bg-input: #161b22;
+  --bg-input: #0f3460;
-  --bg-highlight: #1a2030;
+  --text: #e0e0e0;
-  --text: #c9d1d9;
+  --text-muted: #888;
-  --text-muted: #6e7681;
+  --accent: #e94560;
-  --accent: #58a6ff;
+  --accent2: #0f3460;
-  --accent-dim: #1f6feb;
+  --border: #2a2a4a;
-  --border: #21262d;
+  --nick: #53a8b6;
-  --nick: #79c0ff;
+  --timestamp: #666;
-  --timestamp: #484f58;
+  --tab-active: #e94560;
-  --tab-active: #58a6ff;
+  --tab-bg: #16213e;
-  --tab-bg: #0d1117;
+  --tab-hover: #1a1a3e;
-  --tab-hover: #161b22;
+  --topic-bg: #121a30;
-  --topic-bg: #0d1117;
+  --unread-bg: #e94560;
-  --unread-bg: #da3633;
+  --warn: #f0ad4e;
-  --warn: #d29922;
-  --op-color: #f0883e;
-  --voice-color: #3fb950;
-  --action-color: #bc8cff;
-  --system-color: #484f58;
 }
 
-html,
+html, body, #root {
-body,
-#root {
   height: 100%;
-  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Courier New',
+  font-family: 'Courier New', Courier, monospace;
-    Courier, monospace;
+  font-size: 14px;
-  font-size: 13px;
   background: var(--bg);
   color: var(--text);
 }
@@ -69,19 +57,15 @@ body,
   padding: 10px 24px;
   font-size: 16px;
   font-family: inherit;
-  background: var(--accent-dim);
+  background: var(--accent);
   border: none;
   color: white;
   border-radius: 4px;
   cursor: pointer;
 }
 
-.login-screen button:hover {
-  background: var(--accent);
-}
-
 .login-screen .error {
-  color: var(--unread-bg);
+  color: var(--accent);
 }
 
 .login-screen .motd {
@@ -105,63 +89,36 @@ body,
   border-bottom: 1px solid var(--border);
   overflow-x: auto;
   flex-shrink: 0;
-  align-items: stretch;
+  align-items: center;
-  min-height: 32px;
-}
-
-.tab-bar::-webkit-scrollbar {
-  height: 2px;
-}
-
-.tab-bar::-webkit-scrollbar-thumb {
-  background: var(--border);
 }
 
 .tab {
-  display: flex;
+  padding: 8px 16px;
-  align-items: center;
-  padding: 6px 12px;
   cursor: pointer;
   border-bottom: 2px solid transparent;
   white-space: nowrap;
   color: var(--text-muted);
   user-select: none;
-  font-size: 12px;
+  position: relative;
-  gap: 6px;
-  transition:
-    background 0.1s,
-    color 0.1s;
 }
 
 .tab:hover {
   background: var(--tab-hover);
-  color: var(--text);
 }
 
 .tab.active {
   color: var(--text);
   border-bottom-color: var(--tab-active);
-  background: var(--bg-highlight);
-}
-
-.tab.server {
-  font-weight: bold;
-}
-
-.tab .tab-name {
-  overflow: hidden;
-  text-overflow: ellipsis;
 }
 
 .tab .close-btn {
+  margin-left: 8px;
   color: var(--text-muted);
-  font-size: 14px;
+  font-size: 12px;
-  line-height: 1;
-  flex-shrink: 0;
 }
 
 .tab .close-btn:hover {
-  color: var(--unread-bg);
+  color: var(--accent);
 }
 
 .tab .unread-badge {
@@ -170,22 +127,19 @@ body,
   color: white;
   font-size: 10px;
   font-weight: bold;
-  padding: 0 5px;
+  padding: 1px 5px;
   border-radius: 8px;
+  margin-left: 6px;
   min-width: 16px;
   text-align: center;
-  line-height: 16px;
-  flex-shrink: 0;
 }
 
 /* Connection status */
 .connection-status {
-  display: flex;
+  padding: 4px 12px;
-  align-items: center;
-  padding: 0 12px;
   background: var(--warn);
-  color: var(--bg);
+  color: #1a1a2e;
-  font-size: 11px;
+  font-size: 12px;
   font-weight: bold;
   white-space: nowrap;
   flex-shrink: 0;
@@ -193,7 +147,7 @@ body,
 
 /* Topic bar */
 .topic-bar {
-  padding: 4px 12px;
+  padding: 6px 12px;
   background: var(--topic-bg);
   border-bottom: 1px solid var(--border);
   color: var(--text-muted);
@@ -204,11 +158,6 @@ body,
   flex-shrink: 0;
 }
 
-.topic-bar .topic-label {
-  color: var(--accent);
-  font-weight: bold;
-}
-
 /* Content area */
 .content {
   display: flex;
@@ -222,210 +171,147 @@ body,
   display: flex;
   flex-direction: column;
   overflow: hidden;
-  min-width: 0;
 }
 
 .messages {
   flex: 1;
   overflow-y: auto;
-  padding: 4px 0;
+  padding: 8px 12px;
-}
-
-.messages::-webkit-scrollbar {
-  width: 6px;
-}
-
-.messages::-webkit-scrollbar-thumb {
-  background: var(--border);
-  border-radius: 3px;
 }
 
 .message {
-  padding: 1px 12px;
+  padding: 2px 0;
-  line-height: 1.5;
+  line-height: 1.4;
   word-wrap: break-word;
 }
 
-.message:hover {
-  background: var(--bg-highlight);
-}
-
 .message .timestamp {
   color: var(--timestamp);
-  font-size: 11px;
+  font-size: 12px;
-  margin-right: 6px;
+  margin-right: 8px;
 }
 
 .message .nick {
+  color: var(--nick);
   font-weight: bold;
-  margin-right: 6px;
+  margin-right: 8px;
 }
 
-.message .nick::before {
+.message .nick::before { content: '<'; }
-  content: '<';
+.message .nick::after { content: '>'; }
-  color: var(--text-muted);
-}
-
-.message .nick::after {
-  content: '>';
-  color: var(--text-muted);
-}
 
 .message.system {
-  color: var(--system-color);
+  color: var(--text-muted);
   font-style: italic;
 }
 
-.message.system .timestamp {
+.message.system .nick {
-  color: var(--timestamp);
+  color: var(--text-muted);
 }
 
-.message.system .content::before {
+.message.system .nick::before,
-  content: '*** ';
+.message.system .nick::after { content: ''; }
-}
 
-.message.action {
+/* Input */
-  color: var(--action-color);
-}
-
-.message.action .timestamp {
-  color: var(--timestamp);
-}
-
-.message.action .action-nick {
-  font-weight: bold;
-}
-
-/* Input bar — full width at bottom */
 .input-bar {
   display: flex;
-  align-items: center;
   border-top: 1px solid var(--border);
   background: var(--bg-secondary);
   flex-shrink: 0;
 }
 
-.input-bar .input-nick {
-  padding: 0 8px 0 12px;
-  color: var(--accent);
-  font-weight: bold;
-  white-space: nowrap;
-  flex-shrink: 0;
-  font-size: 13px;
-}
-
-.input-bar .input-nick::after {
-  content: '>';
-  color: var(--text-muted);
-  margin-left: 1px;
-}
-
 .input-bar input {
   flex: 1;
-  padding: 8px 8px;
+  padding: 10px 12px;
   font-family: inherit;
-  font-size: 13px;
+  font-size: 14px;
-  background: transparent;
+  background: var(--bg-input);
   border: none;
   color: var(--text);
   outline: none;
 }
 
-.input-bar input::placeholder {
+.input-bar button {
-  color: var(--text-muted);
+  padding: 10px 16px;
+  font-family: inherit;
+  background: var(--accent);
+  border: none;
+  color: white;
+  cursor: pointer;
 }
 
 /* User list */
 .user-list {
-  width: 170px;
+  width: 160px;
   background: var(--bg-secondary);
   border-left: 1px solid var(--border);
-  display: flex;
+  overflow-y: auto;
-  flex-direction: column;
+  padding: 8px;
   flex-shrink: 0;
 }
 
-.user-list-header {
+.user-list h3 {
-  padding: 6px 10px;
   color: var(--text-muted);
   font-size: 11px;
   text-transform: uppercase;
-  letter-spacing: 0.5px;
+  margin-bottom: 8px;
-  border-bottom: 1px solid var(--border);
+  letter-spacing: 1px;
-  font-weight: bold;
-  flex-shrink: 0;
-}
-
-.user-list-entries {
-  overflow-y: auto;
-  flex: 1;
-  padding: 4px 0;
-}
-
-.user-list-entries::-webkit-scrollbar {
-  width: 4px;
-}
-
-.user-list-entries::-webkit-scrollbar-thumb {
-  background: var(--border);
 }
 
 .user-list .user {
-  padding: 2px 10px;
+  padding: 3px 4px;
-  font-size: 12px;
+  color: var(--nick);
+  font-size: 13px;
   cursor: pointer;
-  white-space: nowrap;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  color: var(--text);
 }
 
 .user-list .user:hover {
   background: var(--tab-hover);
 }
 
-.user-list .user.op {
+/* Server tab */
-  color: var(--op-color);
-}
-
-.user-list .user.voice {
-  color: var(--voice-color);
-}
-
-/* Server tab messages */
 .server-messages {
   color: var(--text-muted);
-  padding: 8px 12px;
+  padding: 12px;
   white-space: pre-wrap;
   overflow-y: auto;
   flex: 1;
 }
 
-.server-messages .message {
+/* Channel join dialog */
-  padding: 1px 0;
+.join-dialog {
+  padding: 12px;
+  display: flex;
+  gap: 8px;
+  background: var(--bg-secondary);
+  border-bottom: 1px solid var(--border);
+  margin-left: auto;
 }
 
-.server-messages .message:hover {
+.join-dialog input {
-  background: var(--bg-highlight);
+  padding: 6px 10px;
+  font-family: inherit;
+  font-size: 13px;
+  background: var(--bg-input);
+  border: 1px solid var(--border);
+  color: var(--text);
+  border-radius: 3px;
+  width: 200px;
+}
+
+.join-dialog button {
+  padding: 6px 14px;
+  font-family: inherit;
+  font-size: 13px;
+  background: var(--accent2);
+  border: none;
+  color: var(--text);
+  border-radius: 3px;
+  cursor: pointer;
 }
 
 /* Responsive */
 @media (max-width: 600px) {
-  .user-list {
+  .user-list { display: none; }
-    display: none;
+  .tab { padding: 6px 10px; font-size: 13px; }
-  }
-
-  .tab {
-    padding: 5px 8px;
-    font-size: 11px;
-  }
-
-  .input-bar .input-nick {
-    padding-left: 8px;
-    font-size: 12px;
-  }
-
-  .input-bar input {
-    font-size: 12px;
-  }
 }