diff --git a/main.py b/main.py
index e370a43..c40562a 100644
--- a/main.py
+++ b/main.py
@@ -1,41 +1,97 @@
 import tkinter as tk
-import time
+
+STATE_IDLE = "IDLE"
+STATE_FOCUS = "FOCUS"
+STATE_WORK = "WORK"
+STATE_OVERTIME = "OVERTIME"
+STATE_BREAK = "BREAK"
+
+current_state = STATE_IDLE
+seconds_left = 0
+distractions = 0
 
 width = 120
 height = 140
 
-app = tk.Tk(className="focustimer")
-
+app = tk.Tk()
 app.title("Focus-Timer")    
 app.configure(background="#17153B")
 app.geometry(f"{width}x{height}")
 app.minsize(width, height)
 app.maxsize(width, height)
 app.resizable(False, False)
-app.update_idletasks()
 
-text_label = tk.Label(app, text="Wanna start?", fg="#C8ACD6", background="#17153B",font=("Helvetica", 14), anchor="center")
-text_label.pack(side="top",pady="15")
+timer_label = tk.Label(app, text="hh:mm:ss",fg="#C8ACD6",background="#17153B",font=("Helvetica", 25) , anchor="center")
+timer_label.pack(expand=True,fill="y")
 
-time_label = tk.Label(app, text="hh:mm:ss",fg="#C8ACD6",background="#17153B",font=("Helvetica", 25) , anchor="center")
-time_label.pack(expand=True,fill="y")
+def tick():
+	global seconds_left, current_state
 
-seconds = 1200
+	match current_state:
+		case STATE_IDLE:
+			return
+		case STATE_OVERTIME:
+			seconds_left += 1
+		case _:
+			seconds_left -= 1
 
-def start():
-	global seconds
-	text_label.config(text="Time to focus!")
-	time_label.config(fg="#AE445A")
-	if seconds > 0:
-		mins, secs = divmod(seconds, 60)
-		time_label.config(text=f"{mins}:{secs}")
-		app.after(1000, start)
-		seconds -= 1
+	update_timer_label()
+
+	if current_state in ("FOCUS","WORK","BREAK") and seconds_left <= 0:
+		handle_transition()
+	
+	app.after(1000, tick)
+
+def update_timer_label():
+	global seconds_left
+	mins, secs = divmod(seconds_left, 60)
+	time_label.config(text=f"{mins}:{secs}")
+
+def handle_transition():
+	global current_state, seconds_left, focus_attempts
+
+	match current_state:
+		case "FOCUS":
+			current_state = STATE_WORK
+			seconds_left = 4200 # 70 min
+			distractions = 0
 		
+		case "WORK":
+			current_state = STATE_OVERTIME
+			seconds_left = 0
+		
+		case "BREAK":
+			current_state = STATE_IDLE
+			seconds_left = 0
 
+def start_button():
+	global current_state, seconds_left, distractions
+	distractions = 0
+	current_state = STATE_FOCUS
+	seconds_left = 0
 
+	tick()
 
-start_button = tk.Button(app, text="start", command=start, fg="#C8ACD6", background="#17153B")
-start_button.pack(side="bottom", pady="15")
+def distracted_button():
+	global current_state, seconds_left, distractions
+
+	if current_state != STATE_FOCUS:
+		return
+
+	distractions += 1
+
+	if distractions > 2:
+		seconds_left = 600
+	else:
+		seconds_left = 1200 - (300 * distractions)
+
+	update_timer_label()
+
+def break_button():
+	global current_state, seconds_left
+
+	current_state = STATE_BREAK
+	seconds_left = 1500
+	update_timer_label()
 
 app.mainloop()