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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}


.contact-section {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-group label {
    font-weight: bold;
}

.form-group input,
.form-group textarea {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.error-message {
    color: red;
    font-size: 14px;
    display: none;
}

.submit-btn {
    background-color: #4CAF50;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

.submit-btn:hover {
    background-color: #45a049;
}


.todo-section {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.todo-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.todo-input {
    display: flex;
    gap: 10px;
}

.todo-input input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.todo-input button {
    background-color: #2196F3;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.todo-input button:hover {
    background-color: #0b7dda;
}

.todo-list {
    list-style: none;
}

.todo-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background-color: #f9f9f9;
    border-radius: 4px;
    margin-bottom: 5px;
}

.todo-item button {
    background-color: #f44336;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.todo-item button:hover {
    background-color: #da190b;
}


@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 10px;
    }
}