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home/dot_tmux.conf

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+# Modern tmux config with sensible defaults
+
+# --- General ---
+set -g default-terminal "tmux-256color"
+set -g history-limit 1000000
+set -g mouse on
+set -g focus-events on
+
+# Faster escape time (for vim/TUI apps)
+set -sg escape-time 0
+set -sg repeat-time 300
+
+# --- Terminal features for modern TUI apps ---
+# True color support
+set -sa terminal-features ',xterm-ghostty:RGB'
+set -sa terminal-features ',xterm-256color:RGB'
+set -sa terminal-overrides ',xterm-256color:Tc'
+
+# Extended keys (Ctrl+Shift, etc. for Claude Code, neovim, etc.)
+set -g extended-keys on
+set -sa terminal-features ',xterm-ghostty:extkeys'
+set -sa terminal-features ',xterm-256color:extkeys'
+
+# Clipboard via OSC 52 (works over SSH)
+set -g set-clipboard on
+set -g allow-passthrough on
+set -sa terminal-features ',xterm-ghostty:clipboard'
+set -sa terminal-features ',xterm-256color:clipboard'
+
+# Cursor style passthrough (for neovim cursor changes)
+set -sa terminal-overrides '*:Ss=\E[%p1%d q:Se=\E[ q'
+
+# Undercurl support (for neovim diagnostics)
+set -sa terminal-overrides ',*:Smulx=\E[4::%p1%dm'
+set -sa terminal-overrides ',*:Setulc=\E[58::2::%p1%{65536}%/%d::%p1%{256}%/%{255}%&%d::%p1%{255}%&%d%;m'
+
+# Start windows and panes at 1
+set -g base-index 1
+setw -g pane-base-index 1
+set -g renumber-windows on
+
+# --- Prefix ---
+unbind C-b
+set -g prefix C-a
+bind C-a send-prefix
+
+# --- Keybindings ---
+# Reload config
+bind r source-file ~/.tmux.conf \; display "Config reloaded"
+
+# Split panes (intuitive keys)
+bind | split-window -h -c "#{pane_current_path}"
+bind - split-window -v -c "#{pane_current_path}"
+bind c new-window -c "#{pane_current_path}"
+unbind '"'
+unbind %
+
+# Vim-style pane navigation
+bind h select-pane -L
+bind j select-pane -D
+bind k select-pane -U
+bind l select-pane -R
+
+# Pane resizing
+bind -r H resize-pane -L 5
+bind -r J resize-pane -D 5
+bind -r K resize-pane -U 5
+bind -r L resize-pane -R 5
+
+# Window navigation
+bind -r n next-window
+bind -r p previous-window
+bind Tab last-window
+
+# Copy mode (vi style)
+setw -g mode-keys vi
+bind -T copy-mode-vi v send -X begin-selection
+bind -T copy-mode-vi y send -X copy-selection-and-cancel
+bind -T copy-mode-vi Escape send -X cancel
+
+# --- Status bar ---
+set -g status-position top
+set -g status-interval 5
+set -g status-style 'bg=#1a1a1a fg=#808080'
+
+# Left: session name
+set -g status-left-length 30
+set -g status-left '#[fg=#c0c0c0,bold] #S #[fg=#404040]|'
+
+# Right: minimal info
+set -g status-right-length 50
+set -g status-right '#[fg=#606060]%H:%M #[fg=#404040]| #[fg=#808080]%d %b'
+
+# Window status
+setw -g window-status-format ' #I:#W '
+setw -g window-status-current-format '#[fg=#c0c0c0,bold] #I:#W '
+setw -g window-status-separator ''
+
+# Pane borders
+set -g pane-border-style 'fg=#303030'
+set -g pane-active-border-style 'fg=#606060'
+
+# Messages
+set -g message-style 'bg=#1a1a1a fg=#c0c0c0'