refactor(ui): replace neon palette and ad-hoc echo with minimal design system

- reduce color palette to red/cyan/white/gray; alias legacy vars onto CYAN
- add show_box_top/mid/bottom, show_separator, show_menu_item, show_prompt helpers to lib/common.sh
- update apps/index.sh and tools/index.sh to use new UI helpers instead of inline echo/ANSI
- drop BLINK, REV escape codes and remove hardcoded prompt strings from callers

apps/index.sh

@@ -34,7 +34,7 @@ run_sibling() {
 
     local temp_file exit_code
     temp_file=$(mktemp "/tmp/lxs.${script_name%.*}.XXXXXX.sh")
-    echo -e "${MAGENTA}[··] Fetching ${BOLD}${script_name}${NC}${MAGENTA}...${NC}"
+    echo -e "${CYAN}[..] Fetching ${BOLD}${script_name}${NC}${CYAN}...${NC}"
     if curl -fsSL -H "Cache-Control: no-cache" -o "${temp_file}" "${LXS_RAW_BASE}/${script_path}"; then
         echo -e "${GREEN}[OK] Payload acquired${NC}"
         chmod +x "${temp_file}"
@@ -52,16 +52,18 @@ run_sibling() {
 menu_apps() {
     while true; do
         clear
-        show_title "APPLICATIONS" "APP_REPOSITORY"
+        show_box_top "APPLICATIONS" "APP_REPOSITORY"
         echo ""
-        echo -e "  ${YELLOW}◢ 01${NC} ${GRAY}│${NC} ${WHITE}Coolify${NC}"
-        echo -e "  ${YELLOW}◢ 02${NC} ${GRAY}│${NC} ${WHITE}Pterodactyl Panel${NC}"
-        echo -e "  ${YELLOW}◢ 03${NC} ${GRAY}│${NC} ${WHITE}Uptime Kuma${NC}"
-        echo -e "  ${YELLOW}◢ 04${NC} ${GRAY}│${NC} ${WHITE}CloudPanel${NC}"
-        echo -e "  ${YELLOW}◢ 05${NC} ${GRAY}│${NC} ${WHITE}Proxmox VE Tools${NC}"
-        echo -e "  ${RED}◢ 00${NC} ${GRAY}│${NC} ${WHITE}BACK${NC}"
+        show_menu_item "01" "Coolify"
+        show_menu_item "02" "Pterodactyl Panel"
+        show_menu_item "03" "Uptime Kuma"
+        show_menu_item "04" "CloudPanel"
+        show_menu_item "05" "Proxmox VE Tools"
+        show_menu_item "00" "BACK" "" exit
         echo ""
-        echo -e -n "${YELLOW}▸${NC}${MAGENTA}_${NC} "
+        show_box_bottom
+        echo ""
+        show_prompt
         read -r choice
 
         case $choice in

lib/common.sh

@@ -7,46 +7,118 @@
 # Repo: https://git.hyko.cx/hykocx/lxs
 
 # ═══════════════════════════════════════════════════════════════════════════
-# Colors — Cyberpunk 2077 neon palette
+# Colors — minimal palette: red, cyan, white (+ gray as a white shade)
 # ═══════════════════════════════════════════════════════════════════════════
 
-RED='\033[1;91m'      # ICE alert
-GREEN='\033[1;92m'    # phosphor green
-YELLOW='\033[1;93m'   # signature electric yellow
-MAGENTA='\033[1;95m'  # hot pink neon
-CYAN='\033[1;96m'     # neon cyan
-WHITE='\033[1;97m'    # bold white
-GRAY='\033[0;90m'     # dark gray
-PURPLE='\033[1;95m'   # alias on MAGENTA for legacy sub-scripts
+RED='\033[38;2;255;64;64m'        # errors, destructive actions
+CYAN='\033[38;2;0;229;255m'       # accents, titles, OK, info
+WHITE='\033[38;2;240;240;240m'    # primary text
+GRAY='\033[38;2;140;140;140m'     # secondary text, comments, separators
 NC='\033[0m'
 BOLD='\033[1m'
 DIM='\033[2m'
-BLINK='\033[5m'
-REV='\033[7m'
+
+# Legacy aliases — older sub-scripts still reference these. Map onto CYAN
+# so the palette stays at red/cyan/white without breaking them.
+YELLOW="$CYAN"
+GREEN="$CYAN"
+MAGENTA="$CYAN"
+PURPLE="$CYAN"
 
 # ═══════════════════════════════════════════════════════════════════════════
-# UI helpers
+# UI helpers — title + horizontal rule, no closed box.
+#
+# Layout:
+#   show_box_top "TITLE" ["RIGHT_TAG"]   →  TITLE                  [ RIGHT ]
+#                                          ─────────────────────────────────
+#   show_box_mid "SECTION"               → ─ SECTION ─────────────────────
+#   show_box_bottom                      → ───────────────────────────────
+#   show_separator                       → ─── (light gray divider)
+#   show_menu_item "01" "LABEL" "desc"   →   [01]  LABEL   // desc
+#   show_prompt                          →  >
 # ═══════════════════════════════════════════════════════════════════════════
 
+_lxs_term_cols() {
+    local cols
+    cols=$(tput cols 2>/dev/null || echo 80)
+    [ "$cols" -gt 100 ] && cols=100
+    [ "$cols" -lt 60 ] && cols=60
+    echo "$cols"
+}
+
+show_box_top() {
+    local title="$1" right="${2:-}"
+    local cols pad_len pad
+    cols=$(_lxs_term_cols)
+    if [ -n "$right" ]; then
+        pad_len=$(( cols - 2 - ${#title} - ${#right} - 4 ))
+        [ "$pad_len" -lt 1 ] && pad_len=1
+        pad=$(printf ' %.0s' $(seq 1 "$pad_len"))
+        printf " ${CYAN}${BOLD}%s${NC}%s${GRAY}[ ${CYAN}%s${GRAY} ]${NC}\n" \
+            "$title" "$pad" "$right"
+    else
+        printf " ${CYAN}${BOLD}%s${NC}\n" "$title"
+    fi
+    _lxs_hr "$cols"
+}
+
+show_box_mid() {
+    local title="$1"
+    local cols fill_len fill
+    cols=$(_lxs_term_cols)
+    fill_len=$(( cols - ${#title} - 4 ))
+    [ "$fill_len" -lt 2 ] && fill_len=2
+    fill=$(printf '─%.0s' $(seq 1 "$fill_len"))
+    printf "${GRAY}─ ${CYAN}${BOLD}%s${NC} ${GRAY}%s${NC}\n" "$title" "$fill"
+}
+
+show_box_bottom() {
+    _lxs_hr "$(_lxs_term_cols)"
+}
+
 show_separator() {
-    local cols
-    cols=$(tput cols 2>/dev/null || echo 64)
-    printf "${YELLOW}"
-    printf '▀%.0s' $(seq 1 "$cols")
-    printf "${NC}\n"
+    _lxs_hr "$(_lxs_term_cols)"
+}
+
+_lxs_hr() {
+    local cols=$1 fill
+    fill=$(printf '─%.0s' $(seq 1 "$cols"))
+    printf "${GRAY}%s${NC}\n" "$fill"
 }
 
 show_title() {
     local title="$1"
-    local subtitle="${2:-SYS_MODULE}"
+    local subtitle="${2:-}"
     echo ""
-    echo -e "${YELLOW}${REV} ${title} ${NC}  ${MAGENTA}// ${subtitle}${NC}"
-    show_separator
+    if [ -n "$subtitle" ]; then
+        show_box_top "$title" "$subtitle"
+    else
+        show_box_top "$title"
+    fi
 }
 
-info()  { echo -e "${MAGENTA}[··]${NC} $*"; }
-ok()    { echo -e "${GREEN}[OK]${NC} $*"; }
-warn()  { echo -e "${YELLOW}[!!]${NC} $*"; }
+# Render a menu line. Pass "exit" as 4th arg to color the key red.
+#   show_menu_item "01" "APPLICATIONS" "deploy stacks"
+#   show_menu_item "00" "EXIT" "quit shell" exit
+show_menu_item() {
+    local key="$1" label="$2" desc="${3:-}" kind="${4:-}"
+    local key_color="${CYAN}"
+    [ "$kind" = "exit" ] && key_color="${RED}"
+    if [ -n "$desc" ]; then
+        printf "  ${key_color}[%s]${NC}  ${WHITE}${BOLD}%-18s${NC}  ${GRAY}// %s${NC}\n" \
+            "$key" "$label" "$desc"
+    else
+        printf "  ${key_color}[%s]${NC}  ${WHITE}${BOLD}%s${NC}\n" "$key" "$label"
+    fi
+}
+
+show_prompt() {
+    echo -e -n " ${CYAN}>${NC} "
+}
+
+info()  { echo -e "${CYAN}[..]${NC} $*"; }
+ok()    { echo -e "${CYAN}[OK]${NC} $*"; }
+warn()  { echo -e "${CYAN}[!!]${NC} $*"; }
 err()   { echo -e "${RED}[KO]${NC} $*" >&2; }
 
 # ═══════════════════════════════════════════════════════════════════════════
@@ -67,13 +139,13 @@ run_spinner() {
     local spinstr='|/-\'
     local log="${LXS_LOG_FILE:-/tmp/lxs.log}"
 
-    echo -e "${MAGENTA}[··] ${message}${NC}"
+    echo -e "${CYAN}[..] ${message}${NC}"
     eval "$command" > "$log" 2>&1 &
     local pid=$!
 
     while kill -0 "$pid" 2>/dev/null; do
         local temp=${spinstr#?}
-        printf "\r${MAGENTA}[%c·]${NC} ${message}" "$spinstr"
+        printf "\r${CYAN}[%c.]${NC} ${message}" "$spinstr"
         spinstr=$temp${spinstr%"$temp"}
         sleep 0.15
     done
@@ -81,7 +153,7 @@ run_spinner() {
     wait "$pid"
     local exit_code=$?
     if [ $exit_code -eq 0 ]; then
-        printf "\r${GREEN}[OK]${NC} ${message}\n"
+        printf "\r${CYAN}[OK]${NC} ${message}\n"
     else
         printf "\r${RED}[KO]${NC} ${message}\n"
     fi
@@ -176,7 +248,7 @@ wait_for_apt() {
         [ $wait_count -ge $max_wait ] && \
             echo -e "${RED}[KO] Timeout waiting for package manager${NC}" && return 1
 
-        printf "\r${GRAY}[··] Waiting... (%ds/%ds)${NC}" $wait_count $max_wait
+        printf "\r${GRAY}[..] Waiting... (%ds/%ds)${NC}" $wait_count $max_wait
         sleep 1
     done
 

lxs.sh

@@ -120,15 +120,7 @@ check_remote_version() {
 }
 
 show_lxs_logo() {
-    local cols head tail_len
-    cols=$(tput cols 2>/dev/null || echo 64)
-    head=" L X S // v${LXS_VERSION} "
-    tail_len=$(( cols - ${#head} - 12 ))
-    [ "$tail_len" -lt 4 ] && tail_len=4
-    local bar
-    bar=$(printf '▀%.0s' $(seq 1 "$tail_len"))
-    echo ""
-    echo -e "${YELLOW}▀▀▀${WHITE}${BOLD}${head}${NC}${YELLOW}${bar}${NC} ${GREEN}[ONLINE]${NC}"
+    show_box_top "LXS // v${LXS_VERSION}" "ONLINE"
 }
 
 show_header() {
@@ -136,7 +128,8 @@ show_header() {
     show_lxs_logo
 
     if [ "${LXS_UPDATE_AVAILABLE:-0}" = "1" ]; then
-        echo -e "${YELLOW}▲ UPDATE_AVAILABLE :: v${LXS_REMOTE_VERSION}${NC}  ${GRAY}// run \`lxs update\`${NC}"
+        echo ""
+        echo -e "  ${CYAN}[!!] UPDATE_AVAILABLE${NC}  ${WHITE}v${LXS_REMOTE_VERSION}${NC}  ${GRAY}// run \`lxs update\`${NC}"
     fi
 
     local hostname os_version kernel uptime_info ip_address cpu_cores total_mem used_mem disk_usage
@@ -151,10 +144,10 @@ show_header() {
     disk_usage=$(df -h / | awk 'NR==2 {print $3 "/" $2 " (" $5 ")"}')
 
     echo ""
-    printf "  ${CYAN}NODE${NC}  %-22s ${CYAN}KERN${NC}  %s\n" "$hostname" "$kernel"
-    printf "  ${CYAN}ADDR${NC}  %-22s ${CYAN}UP${NC}    %s\n" "$ip_address" "$uptime_info"
-    printf "  ${CYAN}OS${NC}    %-22s ${CYAN}CPU${NC}   %s cores\n" "$os_version" "$cpu_cores"
-    printf "  ${CYAN}DISK${NC}  %-22s ${CYAN}MEM${NC}   %s / %s\n" "$disk_usage" "$used_mem" "$total_mem"
+    printf "  ${CYAN}NODE${NC}  ${WHITE}%-26s${NC}  ${CYAN}KERN${NC}  ${WHITE}%s${NC}\n" "$hostname" "$kernel"
+    printf "  ${CYAN}ADDR${NC}  ${WHITE}%-26s${NC}  ${CYAN}UP${NC}    ${WHITE}%s${NC}\n" "$ip_address" "$uptime_info"
+    printf "  ${CYAN}OS${NC}    ${WHITE}%-26s${NC}  ${CYAN}CPU${NC}   ${WHITE}%s cores${NC}\n" "$os_version" "$cpu_cores"
+    printf "  ${CYAN}DISK${NC}  ${WHITE}%-26s${NC}  ${CYAN}MEM${NC}   ${WHITE}%s / %s${NC}\n" "$disk_usage" "$used_mem" "$total_mem"
     echo ""
 }
 
@@ -197,7 +190,7 @@ download_and_run() {
     temp_file=$(mktemp "/tmp/lxs.${script_name%.*}.XXXXXX.sh")
 
     echo ""
-    echo -e "${MAGENTA}[··] Fetching ${BOLD}${script_name}${NC}${MAGENTA}...${NC}"
+    echo -e "${CYAN}[..] Fetching ${BOLD}${script_name}${NC}${CYAN}...${NC}"
 
     if curl -fsSL -H "Cache-Control: no-cache" \
         -o "${temp_file}" \
@@ -304,7 +297,7 @@ lxs_sync_install() {
     }
     trap 'rm -rf "$work"' RETURN
 
-    echo -e "${MAGENTA}[··] Fetching ${LXS_TARBALL_URL}...${NC}"
+    echo -e "${CYAN}[..] Fetching ${LXS_TARBALL_URL}...${NC}"
     if ! curl -fsSL -H "Cache-Control: no-cache" -o "${work}/lxs.tgz" "$LXS_TARBALL_URL"; then
         echo -e "${RED}[KO] Download failed${NC}"
         return 1
@@ -372,18 +365,18 @@ cmd_install_self() {
 main_menu() {
     check_os
     check_remote_version
-    local hostname
-    hostname=$(hostname 2>/dev/null || echo "${HOSTNAME:-node}")
     while true; do
         show_header
-        echo -e "${MAGENTA}>> SELECT_PROTOCOL <<${NC}"
+        show_box_mid "SELECT"
         echo ""
-        echo -e "  ${YELLOW}◢ 01${NC} ${GRAY}│${NC} ${WHITE}APPLICATIONS${NC}    ${GRAY}// deploy stacks${NC}"
-        echo -e "  ${YELLOW}◢ 02${NC} ${GRAY}│${NC} ${WHITE}TOOLS${NC}           ${GRAY}// sysadmin daemons${NC}"
-        echo -e "  ${YELLOW}◢ UU${NC} ${GRAY}│${NC} ${WHITE}FETCH_UPDATE${NC}    ${GRAY}// sync remote${NC}"
-        echo -e "  ${RED}◢ 00${NC} ${GRAY}│${NC} ${WHITE}JACK_OUT${NC}        ${GRAY}// exit shell${NC}"
+        show_menu_item "01" "APPLICATIONS" "deploy stacks"
+        show_menu_item "02" "TOOLS"        "sysadmin daemons"
+        show_menu_item "UU" "FETCH_UPDATE" "sync remote"
+        show_menu_item "00" "JACK_OUT"     "exit shell" exit
         echo ""
-        echo -e -n "${MAGENTA}jack_in${NC}@${CYAN}${hostname}${NC} ${YELLOW}▸${NC}${MAGENTA}_${NC} "
+        show_box_bottom
+        echo ""
+        show_prompt
         read -r choice
 
         case $choice in
@@ -399,7 +392,7 @@ main_menu() {
             0|00)
                 clear
                 show_lxs_logo
-                echo -e "${MAGENTA}JACK_OUT${NC} ${GRAY}// session terminated${NC}\n"
+                echo -e "${CYAN}JACK_OUT${NC} ${GRAY}// session terminated${NC}\n"
                 exit 0
                 ;;
             *) echo -e "${RED}[KO] Invalid protocol.${NC}"; sleep 1 ;;

tools/index.sh

@@ -35,7 +35,7 @@ run_sibling() {
 
     local temp_file exit_code
     temp_file=$(mktemp "/tmp/lxs.${script_name%.*}.XXXXXX.sh")
-    echo -e "${MAGENTA}[··] Fetching ${BOLD}${script_name}${NC}${MAGENTA}...${NC}"
+    echo -e "${CYAN}[..] Fetching ${BOLD}${script_name}${NC}${CYAN}...${NC}"
     if curl -fsSL -H "Cache-Control: no-cache" -o "${temp_file}" "${LXS_RAW_BASE}/${script_path}"; then
         echo -e "${GREEN}[OK] Payload acquired${NC}"
         chmod +x "${temp_file}"
@@ -53,18 +53,20 @@ run_sibling() {
 menu_tools() {
     while true; do
         clear
-        show_title "TOOLS" "SYS_DAEMONS"
+        show_box_top "TOOLS" "SYS_DAEMONS"
         echo ""
-        echo -e "  ${YELLOW}◢ 01${NC} ${GRAY}│${NC} ${WHITE}System Infos${NC}"
-        echo -e "  ${YELLOW}◢ 02${NC} ${GRAY}│${NC} ${WHITE}Server Benchmark${NC}"
-        echo -e "  ${YELLOW}◢ 03${NC} ${GRAY}│${NC} ${WHITE}Harden Server${NC}"
-        echo -e "  ${YELLOW}◢ 04${NC} ${GRAY}│${NC} ${WHITE}Change Root Password${NC}"
-        echo -e "  ${YELLOW}◢ 05${NC} ${GRAY}│${NC} ${WHITE}Update Server${NC}"
-        echo -e "  ${YELLOW}◢ 06${NC} ${GRAY}│${NC} ${WHITE}Root SSH Password Login${NC}"
-        echo -e "  ${YELLOW}◢ 07${NC} ${GRAY}│${NC} ${WHITE}Welcome Message (MOTD)${NC}"
-        echo -e "  ${RED}◢ 00${NC} ${GRAY}│${NC} ${WHITE}BACK${NC}"
+        show_menu_item "01" "System Infos"
+        show_menu_item "02" "Server Benchmark"
+        show_menu_item "03" "Harden Server"
+        show_menu_item "04" "Change Root Password"
+        show_menu_item "05" "Update Server"
+        show_menu_item "06" "Root SSH Password Login"
+        show_menu_item "07" "Welcome Message (MOTD)"
+        show_menu_item "00" "BACK" "" exit
         echo ""
-        echo -e -n "${YELLOW}▸${NC}${MAGENTA}_${NC} "
+        show_box_bottom
+        echo ""
+        show_prompt
         read -r choice
 
         case $choice in