diff --git a/home/.tmux.conf b/home/.tmux.conf
index f201d16..14ebe4f 100644
--- a/home/.tmux.conf
+++ b/home/.tmux.conf
@@ -1,7 +1,8 @@
-# Set prefix to ctrl-a, freeing up ctrl-b
-set-option -g prefix C-a
+# Set prefix to ctrl-space, freeing up ctrl-a for shell line-start
+set-option -g prefix C-Space
 unbind-key C-b
-bind-key C-a send-prefix
+unbind-key C-a
+bind-key C-Space send-prefix
 
 ### Settings
 
@@ -16,6 +17,11 @@ if-shell 'infocmp -x tmux-256color >/dev/null 2>&1' \
 # Truecolor support for common terminal types
 set-option -as terminal-features ',xterm-256color:RGB,screen-256color:RGB,tmux-256color:RGB'
 
+# Extended key sequences (CSI u) — forwards Shift+Enter etc. to apps
+set-option -g extended-keys always
+set-option -s extended-keys-format csi-u
+set-option -as terminal-features ',xterm-256color:extkeys,tmux-256color:extkeys'
+
 # Keep a lot of scrollback buffer
 set-option -g history-limit 50000
 
@@ -59,7 +65,7 @@ set-option -g allow-passthrough on
 bind-key r source-file ~/.tmux.conf \; display-message "Reloaded tmux.conf"
 
 # Toggle last active window
-bind-key C-a last-window
+bind-key C-Space last-window
 
 ## Windows
 
@@ -93,8 +99,10 @@ bind-key -r L resize-pane -R 5
 
 # Begin selection
 bind-key -T copy-mode-vi v send -X begin-selection
+# Select line
+bind-key -T copy-mode-vi V send -X select-line
 # Toggle rectangle selection
-bind-key -T copy-mode-vi V send -X rectangle-toggle
+bind-key -T copy-mode-vi C-v send -X rectangle-toggle
 # Yank selection and exit copy mode
 bind-key -T copy-mode-vi y send -X copy-selection-and-cancel
 
@@ -139,7 +147,7 @@ set-window-option -g window-status-separator ""
 set-window-option -g window-status-style "fg=colour8"
 
 # Active window title (base0B green bg, consistent across base16/base24)
-set-window-option -g window-status-current-style "bg=colour2,fg=colour7,bold"
+set-window-option -g window-status-current-style "bg=colour2,fg=colour0,bold"
 
 # Activity and bell indicators
 set-window-option -g window-status-activity-style "fg=colour3,bold"