/* AUTO-GENERATED by GUI Editor — do not edit manually */
#include "gui_generated.h"
#include "lvgl.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

/* Fonts */
LV_FONT_DECLARE(montserrat_16_ru_en)

lv_obj_t *scr_main = NULL;
lv_obj_t *scr_screen1 = NULL;
lv_obj_t *scr_screen2 = NULL;
lv_obj_t *scr_screen3 = NULL;


/* Runtime variable values */
static int32_t var_temp_room = 22;
static int32_t var_hum_room = 45;
static int32_t var_temp_channel = 20;
static int32_t var_hum_channel = 50;
static int32_t var_room_num = 101;
static int32_t var_is_master = 1;
static int32_t var_season = 0; // 0=Зима, 1=Лето, 2=Переход
static int32_t var_mode = 1; // 0=Остановка, 1=Дежурный, 2=Рабочий

/* Equipment module states */
static int32_t var_valve_inlet = 75; // Входной клапан 0-100%
static int32_t var_valve_recirc = 25; // Клапан рециркуляции 0-100%
static int32_t var_filter_g4 = 1; // 0=Грязный, 1=Чистый
static int32_t var_kws_valve = 50; // KWS клапан 0-100%
static int32_t var_pww_valve = 30; // PWW клапан 0-100%
static int32_t var_heater_on = 0; // Электронагреватель 0=Выкл, 1=Вкл
static int32_t var_fan_on = 1; // Вентилятор 0=Выкл, 1=Вкл
static int32_t var_filter_h13 = 1; // 0=Грязный, 1=Чистый

/* Module configuration for drag&drop */
typedef enum {
    MODULE_VALVE_INLET = 0,
    MODULE_VALVE_RECIRC,
    MODULE_FILTER_G4,
    MODULE_KWS,
    MODULE_PWW,
    MODULE_HEATER,
    MODULE_FAN,
    MODULE_FILTER_H13,
    MODULE_COUNT
} module_type_t;

typedef struct {
    module_type_t type;
    int enabled;  // 1=показывать, 0=скрыть
    int position; // позиция в ряду (0-7)
    lv_obj_t *obj; // указатель на объект (для будущего drag&drop)
} module_config_t;

static module_config_t modules[MODULE_COUNT] = {
    {MODULE_VALVE_INLET, 1, 0, NULL},
    {MODULE_VALVE_RECIRC, 1, 1, NULL},
    {MODULE_FILTER_G4, 1, 2, NULL},
    {MODULE_KWS, 1, 3, NULL},
    {MODULE_PWW, 1, 4, NULL},
    {MODULE_HEATER, 1, 5, NULL},
    {MODULE_FAN, 1, 6, NULL},
    {MODULE_FILTER_H13, 1, 7, NULL},
};

/* Alarm log structure */
#define MAX_ALARMS 10
typedef struct {
    char message[100];
    char timestamp[20];
    int active;
} alarm_entry_t;

static alarm_entry_t alarm_log[MAX_ALARMS];
static int alarm_count = 0;

/* Settings/Setpoints for Work and Standby modes */
static float setpoint_work_temp = 22.0;
static float setpoint_work_hum = 50.0;
static float setpoint_standby_temp = 18.0;
static float setpoint_standby_hum = 45.0;

/* Password and settings */
#define PASSWORD "1234"
static char password_input[10] = "";
static lv_obj_t *popup_password = NULL;
static lv_obj_t *lbl_password_display = NULL;

/* Parameter editor */
static lv_obj_t *popup_param_editor = NULL;
static lv_obj_t *lbl_param_value = NULL;
static char param_value_str[20] = "";
static float *param_being_edited = NULL;
static char param_name[50] = "";

/* Configuration parameters */
static float config_temp_room_offset = 0.0;
static float config_hum_room_offset = 0.0;
static float config_temp_channel_offset = 0.0;
static float config_hum_channel_offset = 0.0;

/* UI element references for updates */
static lv_obj_t *lbl_temp_room = NULL;
static lv_obj_t *lbl_hum_room = NULL;
static lv_obj_t *lbl_temp_channel = NULL;
static lv_obj_t *lbl_hum_channel = NULL;
static lv_obj_t *lbl_room_num = NULL;
static lv_obj_t *lbl_master_slave = NULL;
static lv_obj_t *lbl_season = NULL;
static lv_obj_t *lbl_mode = NULL;
static lv_obj_t *lbl_datetime = NULL;

/* Equipment UI references */
static lv_obj_t *lbl_valve_inlet = NULL;
static lv_obj_t *lbl_valve_recirc = NULL;
static lv_obj_t *lbl_filter_g4 = NULL;
static lv_obj_t *lbl_kws = NULL;
static lv_obj_t *lbl_pww = NULL;
static lv_obj_t *lbl_heater = NULL;
static lv_obj_t *lbl_fan = NULL;
static lv_obj_t *lbl_filter_h13 = NULL;

/* Popup windows */
static lv_obj_t *popup_readings = NULL;
static lv_obj_t *popup_alarm = NULL;

/* Forward declarations */
static void create_popup_readings(void);
static void create_popup_alarm(const char *message);
static void add_alarm_to_log(const char *message, int active);
static void btn_log_cb(lv_event_t *e);
static void btn_settings_cb(lv_event_t *e);
static void btn_config_cb(lv_event_t *e);
static void create_popup_password(void);
static void password_keypad_cb(lv_event_t *e);
static void create_popup_param_editor(const char *name, float *param_ptr);
static void param_keypad_cb(lv_event_t *e);
static void close_popup_cb(lv_event_t *e);
static void btn_back_to_main_cb(lv_event_t *e);

/* Button callbacks */
static void btn_stop_cb(lv_event_t *e) {
    (void)e;
    var_mode = 0;
    gui_update_values();
}

static void btn_standby_cb(lv_event_t *e) {
    (void)e;
    var_mode = 1;
    gui_update_values();
}

static void btn_work_cb(lv_event_t *e) {
    (void)e;
    var_mode = 2;
    gui_update_values();
}

static void btn_menu_cb(lv_event_t *e) {
    (void)e;
    if (scr_screen1) lv_scr_load(scr_screen1);
}

static void btn_back_to_main_cb(lv_event_t *e) {
    (void)e;
    if (scr_main) lv_scr_load(scr_main);
}

static void btn_readings_cb(lv_event_t *e) {
    (void)e;
    create_popup_readings();
}

static void close_popup_cb(lv_event_t *e) {
    lv_obj_t *popup = lv_event_get_user_data(e);
    if (popup) {
        lv_obj_del(popup);
    }
    if (popup == popup_readings) popup_readings = NULL;
    if (popup == popup_alarm) popup_alarm = NULL;
    if (popup == popup_password) {
        popup_password = NULL;
        memset(password_input, 0, sizeof(password_input));
    }
    if (popup == popup_param_editor) {
        popup_param_editor = NULL;
        memset(param_value_str, 0, sizeof(param_value_str));
        param_being_edited = NULL;
    }
}

static void btn_log_cb(lv_event_t *e) {
    (void)e;
    if (scr_screen2) lv_scr_load(scr_screen2);
}

static void btn_settings_cb(lv_event_t *e) {
    (void)e;
    if (scr_screen3) lv_scr_load(scr_screen3);
}

static void btn_config_cb(lv_event_t *e) {
    (void)e;
    create_popup_password();
}

/* Edit parameter callbacks */
static void edit_work_temp_cb(lv_event_t *e) {
    (void)e;
    create_popup_param_editor("Температура (Рабочий)", &setpoint_work_temp);
}

static void edit_work_hum_cb(lv_event_t *e) {
    (void)e;
    create_popup_param_editor("Влажность (Рабочий)", &setpoint_work_hum);
}

static void edit_standby_temp_cb(lv_event_t *e) {
    (void)e;
    create_popup_param_editor("Температура (Дежурный)", &setpoint_standby_temp);
}

static void edit_standby_hum_cb(lv_event_t *e) {
    (void)e;
    create_popup_param_editor("Влажность (Дежурный)", &setpoint_standby_hum);
}

/* Password keypad callback */
static void password_keypad_cb(lv_event_t *e) {
    const char *key = lv_event_get_user_data(e);
    int len = strlen(password_input);
    
    if (strcmp(key, "C") == 0) {
        // Clear
        memset(password_input, 0, sizeof(password_input));
    } else if (strcmp(key, "OK") == 0) {
        // Check password
        if (strcmp(password_input, PASSWORD) == 0) {
            // Correct password - close popup and show success message
            if (popup_password) {
                lv_obj_del(popup_password);
                popup_password = NULL;
                lbl_password_display = NULL;
            }
            memset(password_input, 0, sizeof(password_input));
            
            // Show success popup
            lv_obj_t *popup_success = lv_obj_create(lv_screen_active());
            lv_obj_set_size(popup_success, 450, 200);
            lv_obj_center(popup_success);
            lv_obj_set_style_bg_color(popup_success, lv_color_hex(0x27AE60), 0);
            lv_obj_set_style_radius(popup_success, 12, 0);
            
            lv_obj_t *lbl = lv_label_create(popup_success);
            lv_label_set_text(lbl, "✓ ДОСТУП РАЗРЕШЁН\n\nЭкран настроек будет\nдобавлен в следующей версии");
            lv_obj_center(lbl);
            lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
            lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
            lv_obj_set_style_text_align(lbl, LV_TEXT_ALIGN_CENTER, 0);
            
            // Auto-close after showing message (we'll just leave X button for now)
            lv_obj_t *btn_close = lv_btn_create(popup_success);
            lv_obj_set_pos(btn_close, 405, 10);
            lv_obj_set_size(btn_close, 35, 35);
            lv_obj_set_style_bg_color(btn_close, lv_color_hex(0x1E8449), 0);
            lv_obj_set_style_radius(btn_close, 6, 0);
            lbl = lv_label_create(btn_close);
            lv_label_set_text(lbl, "X");
            lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
            lv_obj_center(lbl);
            lv_obj_add_event_cb(btn_close, close_popup_cb, LV_EVENT_CLICKED, popup_success);
        } else {
            // Wrong password
            if (lbl_password_display) {
                lv_label_set_text(lbl_password_display, "НЕВЕРНЫЙ ПАРОЛЬ!");
                lv_obj_set_style_text_color(lbl_password_display, lv_color_hex(0xE74C3C), 0);
            }
            memset(password_input, 0, sizeof(password_input));
        }
    } else if (len < 8) {
        // Add digit
        strcat(password_input, key);
    }
    
    // Update display
    if (lbl_password_display) {
        char display[20] = "";
        for (int i = 0; i < (int)strlen(password_input); i++) {
            strcat(display, "*");
        }
        if (strlen(display) == 0) {
            lv_label_set_text(lbl_password_display, "Введите пароль");
            lv_obj_set_style_text_color(lbl_password_display, lv_color_hex(0xBDC3C7), 0);
        } else {
            lv_label_set_text(lbl_password_display, display);
            lv_obj_set_style_text_color(lbl_password_display, lv_color_hex(0x2ECC71), 0);
        }
    }
}

/* Create password popup with keypad */
static void create_popup_password(void) {
    if (popup_password) return; // Already open
    
    memset(password_input, 0, sizeof(password_input));
    
    popup_password = lv_obj_create(lv_screen_active());
    lv_obj_set_size(popup_password, 400, 400);
    lv_obj_center(popup_password);
    lv_obj_set_style_bg_color(popup_password, lv_color_hex(0x34495E), 0);
    lv_obj_set_style_radius(popup_password, 12, 0);
    lv_obj_set_style_border_width(popup_password, 3, 0);
    lv_obj_set_style_border_color(popup_password, lv_color_hex(0xE67E22), 0);
    
    /* Title */
    lv_obj_t *lbl = lv_label_create(popup_password);
    lv_label_set_text(lbl, "Введите пароль");
    lv_obj_set_pos(lbl, 130, 15);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xECF0F1), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Close button (X) */
    lv_obj_t *btn_close = lv_btn_create(popup_password);
    lv_obj_set_pos(btn_close, 355, 10);
    lv_obj_set_size(btn_close, 35, 35);
    lv_obj_set_style_bg_color(btn_close, lv_color_hex(0xC0392B), 0);
    lv_obj_set_style_radius(btn_close, 6, 0);
    lbl = lv_label_create(btn_close);
    lv_label_set_text(lbl, "X");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn_close, close_popup_cb, LV_EVENT_CLICKED, popup_password);
    
    /* Password display */
    lbl_password_display = lv_label_create(popup_password);
    lv_label_set_text(lbl_password_display, "Введите пароль");
    lv_obj_set_pos(lbl_password_display, 130, 60);
    lv_obj_set_style_text_color(lbl_password_display, lv_color_hex(0xBDC3C7), 0);
    lv_obj_set_style_text_font(lbl_password_display, &montserrat_16_ru_en, 0);
    
    /* Numeric keypad 3x4 */
    const char *keys[12] = {"1", "2", "3", "4", "5", "6", "7", "8", "9", "C", "0", "OK"};
    int key_size = 70;
    int key_spacing = 10;
    int start_x = 40;
    int start_y = 110;
    
    for (int i = 0; i < 12; i++) {
        int row = i / 3;
        int col = i % 3;
        
        lv_obj_t *btn = lv_btn_create(popup_password);
        lv_obj_set_pos(btn, start_x + col * (key_size + key_spacing), 
                           start_y + row * (key_size + key_spacing));
        lv_obj_set_size(btn, key_size, key_size);
        
        // Color coding
        if (strcmp(keys[i], "C") == 0) {
            lv_obj_set_style_bg_color(btn, lv_color_hex(0xE67E22), 0);
        } else if (strcmp(keys[i], "OK") == 0) {
            lv_obj_set_style_bg_color(btn, lv_color_hex(0x2ECC71), 0);
        } else {
            lv_obj_set_style_bg_color(btn, lv_color_hex(0x3498DB), 0);
        }
        lv_obj_set_style_radius(btn, 8, 0);
        
        lbl = lv_label_create(btn);
        lv_label_set_text(lbl, keys[i]);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        lv_obj_center(lbl);
        
        lv_obj_add_event_cb(btn, password_keypad_cb, LV_EVENT_CLICKED, (void*)keys[i]);
    }
}

/* Parameter editor keypad callback */
static void param_keypad_cb(lv_event_t *e) {
    const char *key = lv_event_get_user_data(e);
    int len = strlen(param_value_str);
    
    if (strcmp(key, "C") == 0) {
        memset(param_value_str, 0, sizeof(param_value_str));
    } else if (strcmp(key, ".") == 0) {
        if (len > 0 && strchr(param_value_str, '.') == NULL) {
            strcat(param_value_str, ".");
        }
    } else if (strcmp(key, "OK") == 0) {
        if (param_being_edited && strlen(param_value_str) > 0) {
            *param_being_edited = atof(param_value_str);
        }
        if (popup_param_editor) {
            lv_obj_del(popup_param_editor);
            popup_param_editor = NULL;
            lbl_param_value = NULL;
        }
        memset(param_value_str, 0, sizeof(param_value_str));
        param_being_edited = NULL;
        return;
    } else if (len < 18) {
        strcat(param_value_str, key);
    }
    
    if (lbl_param_value) {
        if (strlen(param_value_str) == 0) {
            lv_label_set_text(lbl_param_value, "0.0");
        } else {
            lv_label_set_text(lbl_param_value, param_value_str);
        }
    }
}

/* Create parameter editor popup */
static void create_popup_param_editor(const char *name, float *param_ptr) {
    if (popup_param_editor) return;
    
    param_being_edited = param_ptr;
    strncpy(param_name, name, 49);
    param_name[49] = '\0';
    memset(param_value_str, 0, sizeof(param_value_str));
    snprintf(param_value_str, sizeof(param_value_str), "%.1f", *param_ptr);
    
    popup_param_editor = lv_obj_create(lv_screen_active());
    lv_obj_set_size(popup_param_editor, 400, 430);
    lv_obj_center(popup_param_editor);
    lv_obj_set_style_bg_color(popup_param_editor, lv_color_hex(0x34495E), 0);
    lv_obj_set_style_radius(popup_param_editor, 12, 0);
    lv_obj_set_style_border_width(popup_param_editor, 3, 0);
    lv_obj_set_style_border_color(popup_param_editor, lv_color_hex(0x3498DB), 0);
    
    /* Title */
    lv_obj_t *lbl = lv_label_create(popup_param_editor);
    lv_label_set_text(lbl, param_name);
    lv_obj_set_pos(lbl, 20, 15);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xECF0F1), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Close button (X) */
    lv_obj_t *btn_close = lv_btn_create(popup_param_editor);
    lv_obj_set_pos(btn_close, 355, 10);
    lv_obj_set_size(btn_close, 35, 35);
    lv_obj_set_style_bg_color(btn_close, lv_color_hex(0xC0392B), 0);
    lv_obj_set_style_radius(btn_close, 6, 0);
    lbl = lv_label_create(btn_close);
    lv_label_set_text(lbl, "X");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn_close, close_popup_cb, LV_EVENT_CLICKED, popup_param_editor);
    
    /* Value display */
    lbl_param_value = lv_label_create(popup_param_editor);
    lv_label_set_text(lbl_param_value, param_value_str);
    lv_obj_set_pos(lbl_param_value, 150, 60);
    lv_obj_set_style_text_color(lbl_param_value, lv_color_hex(0x2ECC71), 0);
    lv_obj_set_style_text_font(lbl_param_value, &montserrat_16_ru_en, 0);
    
    /* Numeric keypad with decimal point */
    const char *keys[12] = {"1", "2", "3", "4", "5", "6", "7", "8", "9", "C", "0", "."};
    int key_size = 70;
    int key_spacing = 10;
    int start_x = 40;
    int start_y = 110;
    
    for (int i = 0; i < 12; i++) {
        int row = i / 3;
        int col = i % 3;
        
        lv_obj_t *btn = lv_btn_create(popup_param_editor);
        lv_obj_set_pos(btn, start_x + col * (key_size + key_spacing), 
                           start_y + row * (key_size + key_spacing));
        lv_obj_set_size(btn, key_size, key_size);
        
        if (strcmp(keys[i], "C") == 0) {
            lv_obj_set_style_bg_color(btn, lv_color_hex(0xE67E22), 0);
        } else if (strcmp(keys[i], ".") == 0) {
            lv_obj_set_style_bg_color(btn, lv_color_hex(0xF39C12), 0);
        } else {
            lv_obj_set_style_bg_color(btn, lv_color_hex(0x3498DB), 0);
        }
        lv_obj_set_style_radius(btn, 8, 0);
        
        lbl = lv_label_create(btn);
        lv_label_set_text(lbl, keys[i]);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        lv_obj_center(lbl);
        
        lv_obj_add_event_cb(btn, param_keypad_cb, LV_EVENT_CLICKED, (void*)keys[i]);
    }
    
    /* OK button (wider) */
    lv_obj_t *btn_ok = lv_btn_create(popup_param_editor);
    lv_obj_set_pos(btn_ok, 130, 390);
    lv_obj_set_size(btn_ok, 160, 35);
    lv_obj_set_style_bg_color(btn_ok, lv_color_hex(0x2ECC71), 0);
    lv_obj_set_style_radius(btn_ok, 8, 0);
    lbl = lv_label_create(btn_ok);
    lv_label_set_text(lbl, "OK");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn_ok, param_keypad_cb, LV_EVENT_CLICKED, (void*)"OK");
}

/* Create popup window for sensor readings */
static void create_popup_readings(void) {
    if (popup_readings) return; // Already open
    
    popup_readings = lv_obj_create(lv_screen_active());
    lv_obj_set_size(popup_readings, 400, 280);
    lv_obj_center(popup_readings);
    lv_obj_set_style_bg_color(popup_readings, lv_color_hex(0x34495E), 0);
    lv_obj_set_style_radius(popup_readings, 12, 0);
    lv_obj_set_style_border_width(popup_readings, 3, 0);
    lv_obj_set_style_border_color(popup_readings, lv_color_hex(0x3498DB), 0);
    
    /* Title */
    lv_obj_t *lbl = lv_label_create(popup_readings);
    lv_label_set_text(lbl, "ПОКАЗАНИЯ ДАТЧИКОВ");
    lv_obj_set_pos(lbl, 20, 15);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xECF0F1), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Close button (X) */
    lv_obj_t *btn_close = lv_btn_create(popup_readings);
    lv_obj_set_pos(btn_close, 355, 10);
    lv_obj_set_size(btn_close, 35, 35);
    lv_obj_set_style_bg_color(btn_close, lv_color_hex(0xC0392B), 0);
    lv_obj_set_style_radius(btn_close, 6, 0);
    lbl = lv_label_create(btn_close);
    lv_label_set_text(lbl, "X");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn_close, close_popup_cb, LV_EVENT_CLICKED, popup_readings);
    
    /* Room sensors */
    int y = 60;
    lbl = lv_label_create(popup_readings);
    lv_label_set_text(lbl, "КОМНАТА:");
    lv_obj_set_pos(lbl, 30, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xF39C12), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    y += 30;
    lbl = lv_label_create(popup_readings);
    char buf[64];
    snprintf(buf, sizeof(buf), "Температура комнаты: %.1f°C", var_temp_room / 1.0);
    lv_label_set_text(lbl, buf);
    lv_obj_set_pos(lbl, 40, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xE74C3C), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    y += 30;
    lbl = lv_label_create(popup_readings);
    snprintf(buf, sizeof(buf), "Влажность комнаты: %d%%", (int)var_hum_room);
    lv_label_set_text(lbl, buf);
    lv_obj_set_pos(lbl, 40, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0x3498DB), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Channel sensors */
    y += 40;
    lbl = lv_label_create(popup_readings);
    lv_label_set_text(lbl, "КАНАЛ ПРИТОКА:");
    lv_obj_set_pos(lbl, 30, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xF39C12), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    y += 30;
    lbl = lv_label_create(popup_readings);
    snprintf(buf, sizeof(buf), "Температура притока: %.1f°C", var_temp_channel / 1.0);
    lv_label_set_text(lbl, buf);
    lv_obj_set_pos(lbl, 40, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xE74C3C), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    y += 30;
    lbl = lv_label_create(popup_readings);
    snprintf(buf, sizeof(buf), "Влажность притока: %d%%", (int)var_hum_channel);
    lv_label_set_text(lbl, buf);
    lv_obj_set_pos(lbl, 40, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0x3498DB), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
}

/* Add alarm to log */
static void add_alarm_to_log(const char *message, int active) {
    if (alarm_count < MAX_ALARMS) {
        strncpy(alarm_log[alarm_count].message, message, 99);
        alarm_log[alarm_count].message[99] = '\0';
        snprintf(alarm_log[alarm_count].timestamp, 20, "25.02.2026 09:35");
        alarm_log[alarm_count].active = active;
        alarm_count++;
    }
}

/* Create alarm popup */
static void create_popup_alarm(const char *message) {
    if (popup_alarm) {
        lv_obj_del(popup_alarm);
    }
    
    /* Add to log */
    add_alarm_to_log(message, 1);
    
    popup_alarm = lv_obj_create(lv_screen_active());
    lv_obj_set_size(popup_alarm, 450, 200);
    lv_obj_center(popup_alarm);
    lv_obj_set_style_bg_color(popup_alarm, lv_color_hex(0xC0392B), 0);
    lv_obj_set_style_radius(popup_alarm, 12, 0);
    lv_obj_set_style_border_width(popup_alarm, 3, 0);
    lv_obj_set_style_border_color(popup_alarm, lv_color_hex(0xE74C3C), 0);
    
    /* Title */
    lv_obj_t *lbl = lv_label_create(popup_alarm);
    lv_label_set_text(lbl, "⚠ АВАРИЯ ⚠");
    lv_obj_set_pos(lbl, 20, 15);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Close button (X) */
    lv_obj_t *btn_close = lv_btn_create(popup_alarm);
    lv_obj_set_pos(btn_close, 405, 10);
    lv_obj_set_size(btn_close, 35, 35);
    lv_obj_set_style_bg_color(btn_close, lv_color_hex(0x2C3E50), 0);
    lv_obj_set_style_radius(btn_close, 6, 0);
    lbl = lv_label_create(btn_close);
    lv_label_set_text(lbl, "X");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn_close, close_popup_cb, LV_EVENT_CLICKED, popup_alarm);
    
    /* Message */
    lbl = lv_label_create(popup_alarm);
    lv_label_set_text(lbl, message);
    lv_obj_set_pos(lbl, 30, 70);
    lv_obj_set_width(lbl, 390);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_label_set_long_mode(lbl, LV_LABEL_LONG_WRAP);
}

static void create_screen_main(void) {
    lv_obj_t *scr = lv_obj_create(NULL);
    scr_main = scr;
    lv_obj_set_style_bg_color(scr, lv_color_hex(0x2C3E50), 0);
    lv_obj_set_style_bg_opa(scr, LV_OPA_COVER, 0);
    lv_obj_clear_flag(scr, LV_OBJ_FLAG_SCROLLABLE);

    /* === STATUS PANEL === */
    lv_obj_t *panel_status = lv_obj_create(scr);
    lv_obj_set_pos(panel_status, 10, 320);
    lv_obj_set_size(panel_status, 230, 150);
    lv_obj_set_style_bg_color(panel_status, lv_color_hex(0x34495E), 0);
    lv_obj_set_style_radius(panel_status, 8, 0);
    lv_obj_set_style_border_width(panel_status, 0, 0);
    
    lv_obj_t *lbl = lv_label_create(panel_status);
    lv_label_set_text(lbl, "Состояние системы");
    lv_obj_set_pos(lbl, 10, 5);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xECF0F1), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    lbl_room_num = lv_label_create(panel_status);
    lv_label_set_text(lbl_room_num, "Комната: 101");
    lv_obj_set_pos(lbl_room_num, 10, 30);
    lv_obj_set_style_text_color(lbl_room_num, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl_room_num, &montserrat_16_ru_en, 0);
    
    lbl_master_slave = lv_label_create(panel_status);
    lv_label_set_text(lbl_master_slave, "Мастер");
    lv_obj_set_pos(lbl_master_slave, 10, 50);
    lv_obj_set_style_text_color(lbl_master_slave, lv_color_hex(0x2ECC71), 0);
    lv_obj_set_style_text_font(lbl_master_slave, &montserrat_16_ru_en, 0);
    
    lbl_season = lv_label_create(panel_status);
    lv_label_set_text(lbl_season, "Сезон: Зима");
    lv_obj_set_pos(lbl_season, 10, 70);
    lv_obj_set_style_text_color(lbl_season, lv_color_hex(0x3498DB), 0);
    lv_obj_set_style_text_font(lbl_season, &montserrat_16_ru_en, 0);
    
    lbl_mode = lv_label_create(panel_status);
    lv_label_set_text(lbl_mode, "Режим: Дежурный");
    lv_obj_set_pos(lbl_mode, 10, 90);
    lv_obj_set_style_text_color(lbl_mode, lv_color_hex(0xF39C12), 0);
    lv_obj_set_style_text_font(lbl_mode, &montserrat_16_ru_en, 0);
    
    lbl_datetime = lv_label_create(panel_status);
    lv_label_set_text(lbl_datetime, "25.02.2025 09:25");
    lv_obj_set_pos(lbl_datetime, 10, 115);
    lv_obj_set_style_text_color(lbl_datetime, lv_color_hex(0xBDC3C7), 0);
    lv_obj_set_style_text_font(lbl_datetime, &montserrat_16_ru_en, 0);

    /* === CLIMATE PANEL === */
    lv_obj_t *panel_climate = lv_obj_create(scr);
    lv_obj_set_pos(panel_climate, 250, 320);
    lv_obj_set_size(panel_climate, 220, 150);
    lv_obj_set_style_bg_color(panel_climate, lv_color_hex(0x34495E), 0);
    lv_obj_set_style_radius(panel_climate, 8, 0);
    lv_obj_set_style_border_width(panel_climate, 0, 0);
    
    lbl = lv_label_create(panel_climate);
    lv_label_set_text(lbl, "Климат в помещении");
    lv_obj_set_pos(lbl, 10, 5);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xECF0F1), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    lbl = lv_label_create(panel_climate);
    lv_label_set_text(lbl, "Температура:");
    lv_obj_set_pos(lbl, 10, 40);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    lbl_temp_room = lv_label_create(panel_climate);
    lv_label_set_text(lbl_temp_room, "22.0°C");
    lv_obj_set_pos(lbl_temp_room, 130, 40);
    lv_obj_set_style_text_color(lbl_temp_room, lv_color_hex(0xE74C3C), 0);
    lv_obj_set_style_text_font(lbl_temp_room, &montserrat_16_ru_en, 0);
    
    lbl = lv_label_create(panel_climate);
    lv_label_set_text(lbl, "Влажность:");
    lv_obj_set_pos(lbl, 10, 70);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    lbl_hum_room = lv_label_create(panel_climate);
    lv_label_set_text(lbl_hum_room, "45%");
    lv_obj_set_pos(lbl_hum_room, 130, 70);
    lv_obj_set_style_text_color(lbl_hum_room, lv_color_hex(0x3498DB), 0);
    lv_obj_set_style_text_font(lbl_hum_room, &montserrat_16_ru_en, 0);

    /* === CONTROL BUTTONS === */
    /* Stop button */
    lv_obj_t *btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, 480, 320);
    lv_obj_set_size(btn, 100, 80);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0xC0392B), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Останов");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn, btn_stop_cb, LV_EVENT_CLICKED, NULL);
    
    /* Standby button */
    btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, 590, 320);
    lv_obj_set_size(btn, 100, 36);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0xF39C12), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Дежурный");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn, btn_standby_cb, LV_EVENT_CLICKED, NULL);
    
    /* Work button */
    btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, 590, 364);
    lv_obj_set_size(btn, 100, 36);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0x27AE60), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Рабочий");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn, btn_work_cb, LV_EVENT_CLICKED, NULL);
    
    /* Menu button */
    btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, 700, 320);
    lv_obj_set_size(btn, 90, 36);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0x34495E), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Меню");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn, btn_menu_cb, LV_EVENT_CLICKED, NULL);
    
    /* Readings button */
    btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, 700, 364);
    lv_obj_set_size(btn, 90, 36);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0x34495E), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Показания");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn, btn_readings_cb, LV_EVENT_CLICKED, NULL);

    /* === EQUIPMENT SCHEMA AREA === */
    lv_obj_t *panel_schema = lv_obj_create(scr);
    lv_obj_set_pos(panel_schema, 10, 10);
    lv_obj_set_size(panel_schema, 780, 300);
    lv_obj_set_style_bg_color(panel_schema, lv_color_hex(0x1A252F), 0);
    lv_obj_set_style_radius(panel_schema, 8, 0);
    lv_obj_set_style_border_width(panel_schema, 2, 0);
    lv_obj_set_style_border_color(panel_schema, lv_color_hex(0x34495E), 0);
    
    int x_pos = 15;
    int y_pos = 20;
    int module_width = 70;
    int module_height = 60;
    int spacing = 10;
    
    /* Title */
    lbl = lv_label_create(panel_schema);
    lv_label_set_text(lbl, "Схема установки");
    lv_obj_set_pos(lbl, 10, 5);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xECF0F1), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Module 1: Входной клапан */
    if (modules[MODULE_VALVE_INLET].enabled) {
        lv_obj_t *mod1 = lv_obj_create(panel_schema);
        modules[MODULE_VALVE_INLET].obj = mod1;
        lv_obj_set_pos(mod1, x_pos, y_pos);
        lv_obj_set_size(mod1, module_width, module_height);
        lv_obj_set_style_bg_color(mod1, lv_color_hex(0x34495E), 0);
        lv_obj_set_style_radius(mod1, 5, 0);
        lv_obj_set_style_border_width(mod1, 1, 0);
        lv_obj_set_style_border_color(mod1, lv_color_hex(0x7F8C8D), 0);
        // TODO: Add image here - lv_image_set_src(img, &img_valve);
        lbl = lv_label_create(mod1);
        lv_label_set_text(lbl, "Вход.\nклапан");
        lv_obj_set_pos(lbl, 5, 5);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        lbl_valve_inlet = lv_label_create(mod1);
        lv_label_set_text(lbl_valve_inlet, "75%");
        lv_obj_set_pos(lbl_valve_inlet, 20, 38);
        lv_obj_set_style_text_color(lbl_valve_inlet, lv_color_hex(0x3498DB), 0);
        lv_obj_set_style_text_font(lbl_valve_inlet, &montserrat_16_ru_en, 0);
        x_pos += module_width + spacing;
    }
    
    /* Module 2: Клапан рециркуляции */
    if (modules[MODULE_VALVE_RECIRC].enabled) {
        lv_obj_t *mod2 = lv_obj_create(panel_schema);
        modules[MODULE_VALVE_RECIRC].obj = mod2;
        lv_obj_set_pos(mod2, x_pos, y_pos);
        lv_obj_set_size(mod2, module_width, module_height);
        lv_obj_set_style_bg_color(mod2, lv_color_hex(0x34495E), 0);
        lv_obj_set_style_radius(mod2, 5, 0);
        lv_obj_set_style_border_width(mod2, 1, 0);
        lv_obj_set_style_border_color(mod2, lv_color_hex(0x7F8C8D), 0);
        // TODO: Add image here - lv_image_set_src(img, &img_valve_recirc);
        lbl = lv_label_create(mod2);
        lv_label_set_text(lbl, "Рецирк.\nклапан");
        lv_obj_set_pos(lbl, 5, 5);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        lbl_valve_recirc = lv_label_create(mod2);
        lv_label_set_text(lbl_valve_recirc, "25%");
        lv_obj_set_pos(lbl_valve_recirc, 20, 38);
        lv_obj_set_style_text_color(lbl_valve_recirc, lv_color_hex(0xF39C12), 0);
        lv_obj_set_style_text_font(lbl_valve_recirc, &montserrat_16_ru_en, 0);
        x_pos += module_width + spacing;
    }
    
    /* Module 3: Фильтр G4 */
    if (modules[MODULE_FILTER_G4].enabled) {
        lv_obj_t *mod3 = lv_obj_create(panel_schema);
        modules[MODULE_FILTER_G4].obj = mod3;
        lv_obj_set_pos(mod3, x_pos, y_pos);
        lv_obj_set_size(mod3, module_width, module_height);
        lv_obj_set_style_bg_color(mod3, lv_color_hex(0x34495E), 0);
        lv_obj_set_style_radius(mod3, 5, 0);
        lv_obj_set_style_border_width(mod3, 1, 0);
        lv_obj_set_style_border_color(mod3, lv_color_hex(0x7F8C8D), 0);
        // TODO: Add image here - lv_image_set_src(img, &img_filter);
        lbl = lv_label_create(mod3);
        lv_label_set_text(lbl, "Фильтр\nG4");
        lv_obj_set_pos(lbl, 10, 5);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        lbl_filter_g4 = lv_label_create(mod3);
        lv_label_set_text(lbl_filter_g4, "Чистый");
        lv_obj_set_pos(lbl_filter_g4, 8, 38);
        lv_obj_set_style_text_color(lbl_filter_g4, lv_color_hex(0x2ECC71), 0);
        lv_obj_set_style_text_font(lbl_filter_g4, &montserrat_16_ru_en, 0);
        x_pos += module_width + spacing;
    }
    
    /* Module 4: KWS */
    if (modules[MODULE_KWS].enabled) {
        lv_obj_t *mod4 = lv_obj_create(panel_schema);
        modules[MODULE_KWS].obj = mod4;
        lv_obj_set_pos(mod4, x_pos, y_pos);
        lv_obj_set_size(mod4, module_width, module_height);
        lv_obj_set_style_bg_color(mod4, lv_color_hex(0x34495E), 0);
        lv_obj_set_style_radius(mod4, 5, 0);
        lv_obj_set_style_border_width(mod4, 1, 0);
        lv_obj_set_style_border_color(mod4, lv_color_hex(0x7F8C8D), 0);
        // TODO: Add image here - lv_image_set_src(img, &img_heater_cooler);
        lbl = lv_label_create(mod4);
        lv_label_set_text(lbl, "KWS");
        lv_obj_set_pos(lbl, 20, 5);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        lbl_kws = lv_label_create(mod4);
        lv_label_set_text(lbl_kws, "50%");
        lv_obj_set_pos(lbl_kws, 20, 25);
        lv_obj_set_style_text_color(lbl_kws, lv_color_hex(0xE74C3C), 0);
        lv_obj_set_style_text_font(lbl_kws, &montserrat_16_ru_en, 0);
        lbl = lv_label_create(mod4);
        lv_label_set_text(lbl, "Нагрев");
        lv_obj_set_pos(lbl, 10, 42);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xE67E22), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        x_pos += module_width + spacing;
    }
    
    /* Module 5: PWW */
    if (modules[MODULE_PWW].enabled) {
        lv_obj_t *mod5 = lv_obj_create(panel_schema);
        modules[MODULE_PWW].obj = mod5;
        lv_obj_set_pos(mod5, x_pos, y_pos);
        lv_obj_set_size(mod5, module_width, module_height);
        lv_obj_set_style_bg_color(mod5, lv_color_hex(0x34495E), 0);
        lv_obj_set_style_radius(mod5, 5, 0);
        lv_obj_set_style_border_width(mod5, 1, 0);
        lv_obj_set_style_border_color(mod5, lv_color_hex(0x7F8C8D), 0);
        // TODO: Add image here - lv_image_set_src(img, &img_heater_cooler);
        lbl = lv_label_create(mod5);
        lv_label_set_text(lbl, "PWW");
        lv_obj_set_pos(lbl, 20, 5);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        lbl_pww = lv_label_create(mod5);
        lv_label_set_text(lbl_pww, "30%");
        lv_obj_set_pos(lbl_pww, 20, 25);
        lv_obj_set_style_text_color(lbl_pww, lv_color_hex(0xE74C3C), 0);
        lv_obj_set_style_text_font(lbl_pww, &montserrat_16_ru_en, 0);
        lbl = lv_label_create(mod5);
        lv_label_set_text(lbl, "Нагрев");
        lv_obj_set_pos(lbl, 10, 42);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xE67E22), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        x_pos += module_width + spacing;
    }
    
    /* Module 6: Электронагреватель */
    if (modules[MODULE_HEATER].enabled) {
        lv_obj_t *mod6 = lv_obj_create(panel_schema);
        modules[MODULE_HEATER].obj = mod6;
        lv_obj_set_pos(mod6, x_pos, y_pos);
        lv_obj_set_size(mod6, module_width, module_height);
        lv_obj_set_style_bg_color(mod6, lv_color_hex(0x34495E), 0);
        lv_obj_set_style_radius(mod6, 5, 0);
        lv_obj_set_style_border_width(mod6, 1, 0);
        lv_obj_set_style_border_color(mod6, lv_color_hex(0x7F8C8D), 0);
        // TODO: Add image here - lv_image_set_src(img, &img_electric_heater);
        lbl = lv_label_create(mod6);
        lv_label_set_text(lbl, "Электро\nнагрев");
        lv_obj_set_pos(lbl, 5, 5);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        lbl_heater = lv_label_create(mod6);
        lv_label_set_text(lbl_heater, "ВЫКЛ");
        lv_obj_set_pos(lbl_heater, 15, 38);
        lv_obj_set_style_text_color(lbl_heater, lv_color_hex(0x7F8C8D), 0);
        lv_obj_set_style_text_font(lbl_heater, &montserrat_16_ru_en, 0);
        x_pos += module_width + spacing;
    }
    
    /* Module 7: Вентилятор */
    if (modules[MODULE_FAN].enabled) {
        lv_obj_t *mod7 = lv_obj_create(panel_schema);
        modules[MODULE_FAN].obj = mod7;
        lv_obj_set_pos(mod7, x_pos, y_pos);
        lv_obj_set_size(mod7, module_width, module_height);
        lv_obj_set_style_bg_color(mod7, lv_color_hex(0x34495E), 0);
        lv_obj_set_style_radius(mod7, 5, 0);
        lv_obj_set_style_border_width(mod7, 1, 0);
        lv_obj_set_style_border_color(mod7, lv_color_hex(0x7F8C8D), 0);
        // TODO: Add image here - lv_image_set_src(img, &img_fan);
        lbl = lv_label_create(mod7);
        lv_label_set_text(lbl, "Вентил.");
        lv_obj_set_pos(lbl, 5, 5);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        lbl_fan = lv_label_create(mod7);
        lv_label_set_text(lbl_fan, "ВКЛ");
        lv_obj_set_pos(lbl_fan, 20, 38);
        lv_obj_set_style_text_color(lbl_fan, lv_color_hex(0x2ECC71), 0);
        lv_obj_set_style_text_font(lbl_fan, &montserrat_16_ru_en, 0);
        x_pos += module_width + spacing;
    }
    
    /* Module 8: Фильтр H13 */
    if (modules[MODULE_FILTER_H13].enabled) {
        lv_obj_t *mod8 = lv_obj_create(panel_schema);
        modules[MODULE_FILTER_H13].obj = mod8;
        lv_obj_set_pos(mod8, x_pos, y_pos);
        lv_obj_set_size(mod8, module_width, module_height);
        lv_obj_set_style_bg_color(mod8, lv_color_hex(0x34495E), 0);
        lv_obj_set_style_radius(mod8, 5, 0);
        lv_obj_set_style_border_width(mod8, 1, 0);
        lv_obj_set_style_border_color(mod8, lv_color_hex(0x7F8C8D), 0);
        // TODO: Add image here - lv_image_set_src(img, &img_filter);
        lbl = lv_label_create(mod8);
        lv_label_set_text(lbl, "Фильтр\nH13");
        lv_obj_set_pos(lbl, 10, 5);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
        lbl_filter_h13 = lv_label_create(mod8);
        lv_label_set_text(lbl_filter_h13, "Чистый");
        lv_obj_set_pos(lbl_filter_h13, 8, 38);
        lv_obj_set_style_text_color(lbl_filter_h13, lv_color_hex(0x2ECC71), 0);
        lv_obj_set_style_text_font(lbl_filter_h13, &montserrat_16_ru_en, 0);
    }
    
    /* Bottom row: Канал и Комната */
    y_pos = 100;
    x_pos = 15;
    
    /* Module 9: Канал (после установки) */
    lv_obj_t *mod9 = lv_obj_create(panel_schema);
    lv_obj_set_pos(mod9, x_pos, y_pos);
    lv_obj_set_size(mod9, 120, 80);
    lv_obj_set_style_bg_color(mod9, lv_color_hex(0x2C3E50), 0);
    lv_obj_set_style_radius(mod9, 8, 0);
    lv_obj_set_style_border_width(mod9, 2, 0);
    lv_obj_set_style_border_color(mod9, lv_color_hex(0x3498DB), 0);
    lbl = lv_label_create(mod9);
    lv_label_set_text(lbl, "КАНАЛ");
    lv_obj_set_pos(lbl, 10, 5);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xECF0F1), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lbl = lv_label_create(mod9);
    lv_label_set_text(lbl, "Температура:");
    lv_obj_set_pos(lbl, 5, 28);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lbl_temp_channel = lv_label_create(mod9);
    lv_label_set_text(lbl_temp_channel, "20.0°C");
    lv_obj_set_pos(lbl_temp_channel, 10, 45);
    lv_obj_set_style_text_color(lbl_temp_channel, lv_color_hex(0x3498DB), 0);
    lv_obj_set_style_text_font(lbl_temp_channel, &montserrat_16_ru_en, 0);
    lbl = lv_label_create(mod9);
    lv_label_set_text(lbl, "Влажность:");
    lv_obj_set_pos(lbl, 5, 60);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lbl_hum_channel = lv_label_create(mod9);
    lv_label_set_text(lbl_hum_channel, "50%");
    lv_obj_set_pos(lbl_hum_channel, 80, 60);
    lv_obj_set_style_text_color(lbl_hum_channel, lv_color_hex(0x3498DB), 0);
    lv_obj_set_style_text_font(lbl_hum_channel, &montserrat_16_ru_en, 0);
    
    /* Module 10: Комната */
    x_pos += 140;
    lv_obj_t *mod10 = lv_obj_create(panel_schema);
    lv_obj_set_pos(mod10, x_pos, y_pos);
    lv_obj_set_size(mod10, 250, 180);
    lv_obj_set_style_bg_color(mod10, lv_color_hex(0x34495E), 0);
    lv_obj_set_style_radius(mod10, 10, 0);
    lv_obj_set_style_border_width(mod10, 3, 0);
    lv_obj_set_style_border_color(mod10, lv_color_hex(0x2ECC71), 0);
    lbl = lv_label_create(mod10);
    lv_label_set_text(lbl, "ПОМЕЩЕНИЕ");
    lv_obj_set_pos(lbl, 10, 10);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xECF0F1), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lbl = lv_label_create(mod10);
    lv_label_set_text(lbl, "Комната 101");
    lv_obj_set_pos(lbl, 10, 35);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lbl = lv_label_create(mod10);
    lv_label_set_text(lbl, "Температура: 22.0°C");
    lv_obj_set_pos(lbl, 10, 60);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xE74C3C), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lbl = lv_label_create(mod10);
    lv_label_set_text(lbl, "Влажность: 45%");
    lv_obj_set_pos(lbl, 10, 85);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0x3498DB), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lbl = lv_label_create(mod10);
    lv_label_set_text(lbl, "Режим: Дежурный");
    lv_obj_set_pos(lbl, 10, 110);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xF39C12), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lbl = lv_label_create(mod10);
    lv_label_set_text(lbl, "Уставка: 21.0°C");
    lv_obj_set_pos(lbl, 10, 135);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Air flow line (визуальная линия потока воздуха) */
    lv_obj_t *line_obj = lv_obj_create(panel_schema);
    lv_obj_set_pos(line_obj, 15, 85);
    lv_obj_set_size(line_obj, 670, 4);
    lv_obj_set_style_bg_color(line_obj, lv_color_hex(0x3498DB), 0);
    lv_obj_set_style_radius(line_obj, 2, 0);
    lv_obj_set_style_border_width(line_obj, 0, 0);
    
    /* Arrow to room */
    lv_obj_t *arrow = lv_obj_create(panel_schema);
    lv_obj_set_pos(arrow, 145, 130);
    lv_obj_set_size(arrow, 4, 70);
    lv_obj_set_style_bg_color(arrow, lv_color_hex(0x2ECC71), 0);
    lv_obj_set_style_radius(arrow, 2, 0);
    lv_obj_set_style_border_width(arrow, 0, 0);
}

static void create_screen_screen1(void) {
    lv_obj_t *scr = lv_obj_create(NULL);
    scr_screen1 = scr;
    lv_obj_set_style_bg_color(scr, lv_color_hex(0x2C3E50), 0);
    lv_obj_set_style_bg_opa(scr, LV_OPA_COVER, 0);
    lv_obj_clear_flag(scr, LV_OBJ_FLAG_SCROLLABLE);
    
    /* Title */
    lv_obj_t *lbl = lv_label_create(scr);
    lv_label_set_text(lbl, "МЕНЮ");
    lv_obj_set_pos(lbl, 350, 30);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xECF0F1), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    int btn_width = 300;
    int btn_height = 50;
    int x = 250;
    int y = 100;
    int spacing = 20;
    
    /* Button: Back to Main Screen */
    lv_obj_t *btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, x, y);
    lv_obj_set_size(btn, btn_width, btn_height);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0x3498DB), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Главный экран");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn, btn_back_to_main_cb, LV_EVENT_CLICKED, NULL);
    
    y += btn_height + spacing;
    
    /* Button: Log (Журнал) */
    btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, x, y);
    lv_obj_set_size(btn, btn_width, btn_height);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0xE67E22), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Журнал аварий");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn, btn_log_cb, LV_EVENT_CLICKED, NULL);
    
    y += btn_height + spacing;
    
    /* Button: Settings Parameters (Уставка параметров) */
    btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, x, y);
    lv_obj_set_size(btn, btn_width, btn_height);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0x27AE60), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Уставка параметров");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn, btn_settings_cb, LV_EVENT_CLICKED, NULL);
    
    y += btn_height + spacing;
    
    /* Button: Configuration (Настройки - требует пароль) */
    btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, x, y);
    lv_obj_set_size(btn, btn_width, btn_height);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0xC0392B), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Настройки 🔒");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn, btn_config_cb, LV_EVENT_CLICKED, NULL);
    
    /* Footer info */
    lbl = lv_label_create(scr);
    lv_label_set_text(lbl, "(для настроек пароль: 1234)");
    lv_obj_set_pos(lbl, 270, 420);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0x7F8C8D), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
}

static void create_screen_screen2(void) {
    lv_obj_t *scr = lv_obj_create(NULL);
    scr_screen2 = scr;
    lv_obj_set_style_bg_color(scr, lv_color_hex(0x2C3E50), 0);
    lv_obj_set_style_bg_opa(scr, LV_OPA_COVER, 0);
    lv_obj_clear_flag(scr, LV_OBJ_FLAG_SCROLLABLE);
    
    /* Title */
    lv_obj_t *lbl = lv_label_create(scr);
    lv_label_set_text(lbl, "ЖУРНАЛ АВАРИЙ");
    lv_obj_set_pos(lbl, 300, 20);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xECF0F1), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Date/Time display */
    lbl = lv_label_create(scr);
    lv_label_set_text(lbl, "25.02.2026 09:35");
    lv_obj_set_pos(lbl, 650, 20);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Log panel */
    lv_obj_t *log_panel = lv_obj_create(scr);
    lv_obj_set_pos(log_panel, 20, 60);
    lv_obj_set_size(log_panel, 760, 300);
    lv_obj_set_style_bg_color(log_panel, lv_color_hex(0x34495E), 0);
    lv_obj_set_style_radius(log_panel, 8, 0);
    lv_obj_set_style_border_width(log_panel, 2, 0);
    lv_obj_set_style_border_color(log_panel, lv_color_hex(0x7F8C8D), 0);
    
    /* Display log entries */
    int y = 10;
    if (alarm_count == 0) {
        lbl = lv_label_create(log_panel);
        lv_label_set_text(lbl, "Аварий нет");
        lv_obj_set_pos(lbl, 320, 130);
        lv_obj_set_style_text_color(lbl, lv_color_hex(0x2ECC71), 0);
        lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    } else {
        for (int i = 0; i < alarm_count && i < 8; i++) {
            char buf[150];
            snprintf(buf, sizeof(buf), "%s - %s", 
                     alarm_log[i].message, alarm_log[i].timestamp);
            
            lbl = lv_label_create(log_panel);
            lv_label_set_text(lbl, buf);
            lv_obj_set_pos(lbl, 10, y);
            lv_obj_set_width(lbl, 730);
            if (alarm_log[i].active) {
                lv_obj_set_style_text_color(lbl, lv_color_hex(0xE74C3C), 0);
            } else {
                lv_obj_set_style_text_color(lbl, lv_color_hex(0xBDC3C7), 0);
            }
            lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
            y += 35;
        }
    }
    
    /* Buttons */
    int btn_y = 380;
    
    /* Clear Log button */
    lv_obj_t *btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, 50, btn_y);
    lv_obj_set_size(btn, 150, 40);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0xC0392B), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Очистить журнал");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    
    /* Reset Alarm button */
    btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, 220, btn_y);
    lv_obj_set_size(btn, 150, 40);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0xE67E22), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Сбросить аварию");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    
    /* Back to Menu button */
    btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, 600, btn_y);
    lv_obj_set_size(btn, 150, 40);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0x3498DB), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Меню");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn, btn_menu_cb, LV_EVENT_CLICKED, NULL);
}

static void create_screen_screen3(void) {
    lv_obj_t *scr = lv_obj_create(NULL);
    scr_screen3 = scr;
    lv_obj_set_style_bg_color(scr, lv_color_hex(0x2C3E50), 0);
    lv_obj_set_style_bg_opa(scr, LV_OPA_COVER, 0);
    lv_obj_clear_flag(scr, LV_OBJ_FLAG_SCROLLABLE);
    
    /* Title */
    lv_obj_t *lbl = lv_label_create(scr);
    lv_label_set_text(lbl, "УСТАВКА ПАРАМЕТРОВ");
    lv_obj_set_pos(lbl, 270, 20);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xECF0F1), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Left panel - Work mode */
    lv_obj_t *panel_work = lv_obj_create(scr);
    lv_obj_set_pos(panel_work, 20, 60);
    lv_obj_set_size(panel_work, 360, 300);
    lv_obj_set_style_bg_color(panel_work, lv_color_hex(0x27AE60), 0);
    lv_obj_set_style_radius(panel_work, 8, 0);
    lv_obj_set_style_border_width(panel_work, 2, 0);
    
    lbl = lv_label_create(panel_work);
    lv_label_set_text(lbl, "РАБОЧИЙ РЕЖИМ");
    lv_obj_set_pos(lbl, 10, 10);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    int y = 50;
    char buf[64];
    
    /* Temperature - clickable */
    lv_obj_t *btn_temp = lv_btn_create(panel_work);
    lv_obj_set_pos(btn_temp, 10, y);
    lv_obj_set_size(btn_temp, 320, 30);
    lv_obj_set_style_bg_color(btn_temp, lv_color_hex(0x2C3E50), 0);
    lv_obj_set_style_radius(btn_temp, 5, 0);
    snprintf(buf, sizeof(buf), "Температура: %.1f°C", setpoint_work_temp);
    lbl = lv_label_create(btn_temp);
    lv_label_set_text(lbl, buf);
    lv_obj_set_pos(lbl, 10, 5);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_add_event_cb(btn_temp, edit_work_temp_cb, LV_EVENT_CLICKED, NULL);
    
    y += 40;
    /* Humidity - clickable */
    lv_obj_t *btn_hum = lv_btn_create(panel_work);
    lv_obj_set_pos(btn_hum, 10, y);
    lv_obj_set_size(btn_hum, 320, 30);
    lv_obj_set_style_bg_color(btn_hum, lv_color_hex(0x2C3E50), 0);
    lv_obj_set_style_radius(btn_hum, 5, 0);
    snprintf(buf, sizeof(buf), "Влажность: %.1f%%", setpoint_work_hum);
    lbl = lv_label_create(btn_hum);
    lv_label_set_text(lbl, buf);
    lv_obj_set_pos(lbl, 10, 5);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_add_event_cb(btn_hum, edit_work_hum_cb, LV_EVENT_CLICKED, NULL);
    
    y += 40;
    lbl = lv_label_create(panel_work);
    lv_label_set_text(lbl, "Клапан притока: 75%");
    lv_obj_set_pos(lbl, 20, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    y += 40;
    lbl = lv_label_create(panel_work);
    lv_label_set_text(lbl, "Вентилятор: ВКЛ");
    lv_obj_set_pos(lbl, 20, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    y += 40;
    lbl = lv_label_create(panel_work);
    lv_label_set_text(lbl, "KWS: АВТО");
    lv_obj_set_pos(lbl, 20, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Right panel - Standby mode */
    lv_obj_t *panel_standby = lv_obj_create(scr);
    lv_obj_set_pos(panel_standby, 400, 60);
    lv_obj_set_size(panel_standby, 360, 300);
    lv_obj_set_style_bg_color(panel_standby, lv_color_hex(0xF39C12), 0);
    lv_obj_set_style_radius(panel_standby, 8, 0);
    lv_obj_set_style_border_width(panel_standby, 2, 0);
    
    lbl = lv_label_create(panel_standby);
    lv_label_set_text(lbl, "ДЕЖУРНЫЙ РЕЖИМ");
    lv_obj_set_pos(lbl, 10, 10);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    y = 50;
    snprintf(buf, sizeof(buf), "Температура: %.1f°C", setpoint_standby_temp);
    lbl = lv_label_create(panel_standby);
    lv_label_set_text(lbl, buf);
    lv_obj_set_pos(lbl, 20, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    y += 40;
    snprintf(buf, sizeof(buf), "Влажность: %.1f%%", setpoint_standby_hum);
    lbl = lv_label_create(panel_standby);
    lv_label_set_text(lbl, buf);
    lv_obj_set_pos(lbl, 20, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    y += 40;
    lbl = lv_label_create(panel_standby);
    lv_label_set_text(lbl, "Клапан притока: 35%");
    lv_obj_set_pos(lbl, 20, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    y += 40;
    lbl = lv_label_create(panel_standby);
    lv_label_set_text(lbl, "Вентилятор: ВКЛ");
    lv_obj_set_pos(lbl, 20, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    y += 40;
    lbl = lv_label_create(panel_standby);
    lv_label_set_text(lbl, "KWS: АВТО");
    lv_obj_set_pos(lbl, 20, y);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Info */
    lbl = lv_label_create(scr);
    lv_label_set_text(lbl, "(нажмите на параметр для редактирования - этап 5)");
    lv_obj_set_pos(lbl, 200, 370);
    lv_obj_set_style_text_color(lbl, lv_color_hex(0x7F8C8D), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    
    /* Buttons */
    int btn_y = 410;
    
    /* Save button */
    lv_obj_t *btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, 200, btn_y);
    lv_obj_set_size(btn, 120, 40);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0x2ECC71), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Сохранить");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    
    /* Default button */
    btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, 340, btn_y);
    lv_obj_set_size(btn, 140, 40);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0xE67E22), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "По умолчанию");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    
    /* Back to Menu button */
    btn = lv_btn_create(scr);
    lv_obj_set_pos(btn, 500, btn_y);
    lv_obj_set_size(btn, 100, 40);
    lv_obj_set_style_bg_color(btn, lv_color_hex(0x3498DB), 0);
    lv_obj_set_style_radius(btn, 8, 0);
    lbl = lv_label_create(btn);
    lv_label_set_text(lbl, "Меню");
    lv_obj_set_style_text_color(lbl, lv_color_hex(0xFFFFFF), 0);
    lv_obj_set_style_text_font(lbl, &montserrat_16_ru_en, 0);
    lv_obj_center(lbl);
    lv_obj_add_event_cb(btn, btn_menu_cb, LV_EVENT_CLICKED, NULL);
}

void gui_update_values(void) {
    char buf[64];
    
    /* Update room climate */
    if (lbl_temp_room) {
        snprintf(buf, sizeof(buf), "%.1f°C", var_temp_room / 1.0);
        lv_label_set_text(lbl_temp_room, buf);
    }
    
    if (lbl_hum_room) {
        snprintf(buf, sizeof(buf), "%d%%", (int)var_hum_room);
        lv_label_set_text(lbl_hum_room, buf);
    }
    
    /* Update channel climate */
    if (lbl_temp_channel) {
        snprintf(buf, sizeof(buf), "%.1f°C", var_temp_channel / 1.0);
        lv_label_set_text(lbl_temp_channel, buf);
    }
    
    if (lbl_hum_channel) {
        snprintf(buf, sizeof(buf), "%d%%", (int)var_hum_channel);
        lv_label_set_text(lbl_hum_channel, buf);
    }
    
    /* Update system status */
    if (lbl_room_num) {
        snprintf(buf, sizeof(buf), "Комната: %d", (int)var_room_num);
        lv_label_set_text(lbl_room_num, buf);
    }
    
    if (lbl_master_slave) {
        lv_label_set_text(lbl_master_slave, var_is_master ? "Мастер" : "Слейв");
        lv_obj_set_style_text_color(lbl_master_slave, 
            var_is_master ? lv_color_hex(0x2ECC71) : lv_color_hex(0xE67E22), 0);
    }
    
    if (lbl_season) {
        const char *seasons[] = {"Зима", "Лето", "Переход"};
        const uint32_t colors[] = {0x3498DB, 0xE74C3C, 0xF39C12};
        snprintf(buf, sizeof(buf), "Сезон: %s", seasons[var_season % 3]);
        lv_label_set_text(lbl_season, buf);
        lv_obj_set_style_text_color(lbl_season, lv_color_hex(colors[var_season % 3]), 0);
    }
    
    if (lbl_mode) {
        const char *modes[] = {"Остановка", "Дежурный", "Рабочий"};
        const uint32_t colors[] = {0xC0392B, 0xF39C12, 0x27AE60};
        snprintf(buf, sizeof(buf), "Режим: %s", modes[var_mode % 3]);
        lv_label_set_text(lbl_mode, buf);
        lv_obj_set_style_text_color(lbl_mode, lv_color_hex(colors[var_mode % 3]), 0);
    }
    
    /* Update equipment modules */
    if (lbl_valve_inlet) {
        snprintf(buf, sizeof(buf), "%d%%", (int)var_valve_inlet);
        lv_label_set_text(lbl_valve_inlet, buf);
    }
    
    if (lbl_valve_recirc) {
        snprintf(buf, sizeof(buf), "%d%%", (int)var_valve_recirc);
        lv_label_set_text(lbl_valve_recirc, buf);
    }
    
    if (lbl_filter_g4) {
        lv_label_set_text(lbl_filter_g4, var_filter_g4 ? "Чистый" : "Грязный");
        lv_obj_set_style_text_color(lbl_filter_g4, 
            var_filter_g4 ? lv_color_hex(0x2ECC71) : lv_color_hex(0xE74C3C), 0);
    }
    
    if (lbl_kws) {
        snprintf(buf, sizeof(buf), "%d%%", (int)var_kws_valve);
        lv_label_set_text(lbl_kws, buf);
    }
    
    if (lbl_pww) {
        snprintf(buf, sizeof(buf), "%d%%", (int)var_pww_valve);
        lv_label_set_text(lbl_pww, buf);
    }
    
    if (lbl_heater) {
        lv_label_set_text(lbl_heater, var_heater_on ? "ВКЛ" : "ВЫКЛ");
        lv_obj_set_style_text_color(lbl_heater, 
            var_heater_on ? lv_color_hex(0xE74C3C) : lv_color_hex(0x7F8C8D), 0);
    }
    
    if (lbl_fan) {
        lv_label_set_text(lbl_fan, var_fan_on ? "ВКЛ" : "ВЫКЛ");
        lv_obj_set_style_text_color(lbl_fan, 
            var_fan_on ? lv_color_hex(0x2ECC71) : lv_color_hex(0xC0392B), 0);
    }
    
    if (lbl_filter_h13) {
        lv_label_set_text(lbl_filter_h13, var_filter_h13 ? "Чистый" : "Грязный");
        lv_obj_set_style_text_color(lbl_filter_h13, 
            var_filter_h13 ? lv_color_hex(0x2ECC71) : lv_color_hex(0xE74C3C), 0);
    }
    
    /* Check for alarm conditions */
    static int alarm_check_counter = 0;
    alarm_check_counter++;
    
    // Example: Show alarm if temperature is too low (freeze risk)
    if (alarm_check_counter > 50 && var_temp_channel < 5 && var_mode != 0) {
        create_popup_alarm("Угроза заморозки!\nУстановка остановлена.\n\nПроверьте журнал и примите меры.");
        var_mode = 0; // Stop system
        alarm_check_counter = 0;
    }
    
    // Example: Show alarm if filter is dirty
    if (alarm_check_counter > 100 && var_filter_g4 == 0) {
        create_popup_alarm("Фильтр G4 засорился!\n\nЗамените фильтр для нормальной работы.");
        alarm_check_counter = 0;
    }
}

void gui_init(void) {
    /* Add some example alarms to the log */
    add_alarm_to_log("Система запущена", 0);
    add_alarm_to_log("Фильтр G4 заменен", 0);
    
    create_screen_main();
    create_screen_screen1();
    create_screen_screen2();
    create_screen_screen3();
    lv_scr_load(scr_main);
}

/* ── ModBus ──────────────────────────────────────── */
/* ModBus disabled for simulation - use dummy values */

void gui_modbus_init(void) {
    /* No-op for simulation */
}

void gui_modbus_task(void *arg) {
    (void)arg;
    /* Simulation: update with dummy values */
    while (1) {
        var_temp_room = 22 + (rand() % 4);
        var_hum_room = 45 + (rand() % 10);
        var_temp_channel = 20 + (rand() % 3);
        var_hum_channel = 50 + (rand() % 8);
        
        /* Simulate valve changes based on mode */
        if (var_mode == 2) { // Рабочий режим
            var_valve_inlet = 70 + (rand() % 30);
            var_valve_recirc = 10 + (rand() % 20);
            var_kws_valve = 40 + (rand() % 30);
            var_pww_valve = 30 + (rand() % 25);
            var_fan_on = 1;
        } else if (var_mode == 1) { // Дежурный
            var_valve_inlet = 30 + (rand() % 20);
            var_valve_recirc = 40 + (rand() % 20);
            var_kws_valve = 20 + (rand() % 15);
            var_pww_valve = 15 + (rand() % 15);
            var_fan_on = 1;
        } else { // Остановка
            var_valve_inlet = 0;
            var_valve_recirc = 0;
            var_kws_valve = 0;
            var_pww_valve = 0;
            var_fan_on = 0;
            var_heater_on = 0;
        }
        
        gui_update_values();
        /* Sleep simulation - requires FreeRTOS or use SDL delay */
    }
}