* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f0f2f5;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header {
    background-color: #242582;
    padding: 1.5rem;
    width: 100%;
}

header h1 {
    color: #ffffff;
    text-align: center;
    font-size: 2rem;
}

main {
    padding: 2rem;
    max-width: 960px;
    width: 100%;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}
/* Pomodoro Timer */
#timer-display {
    font-size: 4rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 1rem;
}

/* Buttons */
button {
    cursor: pointer;
    padding: 0.5rem 1rem;
    margin-right: 0.5rem;
    background-color: #242582;
    color: #ffffff;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #3d409c;
}

button:last-child {
    margin-right: 0;
}

/* Lower section */
.lower-section {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.column {
    width: calc(50% - 1rem);
    margin-bottom: 2rem;
}

@media (max-width: 767px) {
    .column {
        width: 100%;
    }
}
/* Task Manager and Habit Tracker */
#task-form, #habit-form {
    display: flex;
    margin-bottom: 1rem;
}

#task-input, #habit-input {
    flex-grow: 1;
    padding: 0.5rem;
    margin-right: 0.5rem;
    border: 1px solid #242582;
    border-radius: 5px;
}

#task-list, #habit-list {
    list-style-type: none;
}

#task-list li, #habit-list li {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.task-checkbox, .habit-checkbox {
    margin-right: 0.5rem;
}

.delete-button {
    background-color: #e74c3c;
    margin-left: 0.5rem;
}

.delete-button:hover {
    background-color: #c0392b;
}

/* Footer */
footer {
    background-color: #242582;
    padding: 1.5rem;
    text-align: center;
    width: 100%;
}

footer p {
    color: #ffffff;
    font-size: 0.9rem;
}