body{
    font-family: Arial, Helvetica, sans-serif;
    margin: 0 !important;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, #c51c1c, #764ba2);
    padding-top: 3%;
}

*{
    box-sizing: border-box;
}

.mb-0{
    margin-bottom: 0 !important;
}

.mt-0{
    margin-top: 0 !important;
}

.ms-0{
    margin-left: 0 !important;
}

.me-0{
    margin-right: 0 !important;
}

.mx-0{
    margin-left: 0 !important;
    margin-right: 0 !important;
}

.my-0{
    margin-top: 0 !important;
    margin-bottom: 0 !important;
}

.pb-0{
    padding-bottom: 0 !important;
}

.pt-0{
    padding-top: 0 !important;
}

.ps-0{
    padding-left: 0 !important;
}

.pe-0{
    padding-right: 0 !important;
}

.px-0{
    padding-left: 0 !important;
    padding-right: 0 !important;
}

.py-0{
    padding-top: 0 !important;
    padding-bottom: 0 !important;
}

.text-deco-none{
    text-decoration: none;
}

.text-white{
    color: white;
}

.header-container{
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin: 40px 0 40px 0;
    color: white;
    font-size: 80px;
    font-weight: 150 !important;
}

.container {
    justify-content: center;
    background: white;
    padding: 30px;
    min-width: 350px;
    max-width: 1200px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    max-height: 65vh;
    overflow-y: auto;
}

.todo-header h1 {
    margin: 0;
    text-align: center;
}

.todo-header p {
    text-align: center;
    color: gray;
    font-size: 14px;
}

.input-group {
    display: flex;
    margin-top: 20px;
}

.input-group input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 6px 0 0 6px;
    outline: none;
}

.input-group button {
    padding: 10px 15px;
    border: none;
    background: #667eea;
    color: white;
    cursor: pointer;
    border-radius: 0 6px 6px 0;
}

.input-group button:hover {
    background: #5a67d8;
}

.todo-container{
    display: flex;
}

#taskList {
    margin-top: 20px;
    padding: 0;
    list-style: none;
}

.task-item{
    display: flex;
    background-color: #f3f3f3;
    border-radius: 12px;
    align-items: center;
    justify-content: space-between;
    font-size: large;
    margin-top: 8px;
    padding: 12px 8px 12px 8px;
} 

.task-item:hover{
    transition: ease-in 0.2s;
    color:rgb(243, 243, 243);
    background-color: #999999;
}

.task-text{
    min-width: 0;
    word-wrap: break-word;
}

.completed .task-text{
    text-decoration: line-through;
    opacity: 20%;
}

.mark-btn{
    margin: 0 4px 0 4px;
    border: 0;
    color: white;
    background-color: green;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
}

.mark-btn:hover{
    transition: ease-in 0.2s;
    background-color: #1c5800;
}

.delete-btn{
    margin: 0 4px 0 4px;
    border: 0;
    color: white;
    background-color: red;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
}

.delete-btn:hover{
    transition: ease-in 0.2s;
    color: #ff0000;
    background-color: #ffacac;
}