body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    color: #333;
    margin: 0;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #444;
}

.task-container {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    padding: 24px 32px;
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 32px;
    flex-wrap: wrap;
    align-items: center;
}

.task-container input, .task-container select {
    padding: 10px 14px;
    font-size: 15px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background: #f5f6fa;
    transition: border-color 0.2s;
}

#sort-task {
    min-width: 120px;
    font-weight: 500;
    background: #eaf6ff;
    border: 1.5px solid #b6e0fe;
    color: #000;
    margin-left: 8px;
}

.sort-order-group {
    display: flex;
    align-items: center;    
    gap: 8px;
    margin-left: 8px;
}

.sort-radio {
    appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid #b6e0fe;
    border-radius: 50%;
    background: #fff;
    outline: none;
    cursor: pointer;
    position: relative;
    transition: border-color 0.2s;
}
.sort-radio:checked {
    border-color: #007bff;
    background: #eaf6ff;
}
.sort-radio:focus {
    box-shadow: 0 0 0 2px #b6e0fe;
}
.sort-label {
    font-size: 15px;
    color: #007bff;
    font-weight: 500;
    cursor: pointer;
    user-select: none;
}

.task-container input:focus, .task-container select:focus {
    border-color: #007bff;
    outline: none;
}

#add-task-btn, #update-task-btn, #cancel-update-btn {
    padding: 10px 18px;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

#add-task-btn {
    background: linear-gradient(90deg, #007bff 60%, #00c6ff 100%);
    color: #fff;
}

#add-task-btn:hover {
    background: linear-gradient(90deg, #0056b3 60%, #0096c7 100%);
}

#update-task-btn {
    background: linear-gradient(90deg, #28a745 60%, #43e97b 100%);
    color: #fff;
}
#update-task-btn:hover {
    background: linear-gradient(90deg, #218838 60%, #38d39f 100%);
}
#cancel-update-btn {
    background: #f5f6fa;
    color: #333;
    border: 1px solid #e0e0e0;
}
#cancel-update-btn:hover {
    background: #e0e0e0;
}

ul#task-list {
    list-style-type: none;
    padding: 0;
    max-width: 700px;
    margin: auto;
}

ul#task-list li {
    background-color: #fff;
    padding: 16px;
    margin-bottom: 14px;
    border-radius: 10px;
    box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.04);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: box-shadow 0.2s;
}

ul#task-list li:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

ul#task-list li span {
    flex-grow: 1;
    margin-left: 12px;
    font-size: 16px;
    color: #444;
}

ul#task-list li b {
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 13px;
}

ul#task-list li span b:contains('P1') {background: #e3fcec; color: #28a745;}
ul#task-list li span b:contains('P2') {background: #e3fcec; color: #ffc107;}
ul#task-list li span b:contains('P3') {background: #e3fcec; color: #dc3545;}

ul#task-list li button.delete-btn, ul#task-list li button.edit-btn {
    font-size: 14px;
    background-color: #dc3545;
    color: white;
    border: none;
    padding: 7px 14px;
    border-radius: 7px;
    cursor: pointer;
    margin-left: 6px;
    transition: background 0.2s;
}

ul#task-list li button.delete-btn {
    background: #dc3545;
    color: #fff;
}

ul#task-list li button.delete-btn:hover {
    background-color: #a71d2a;
}

ul#task-list li button.edit-btn {
    background: #007bff;
    color: #fff;
}

ul#task-list li button.edit-btn:hover {
    background: #0056b3;
}

#feedback-msg {
    font-size: 14px;
    font-weight: 500;
    margin-left: 10px;
    color: #28a745;
    transition: opacity 0.3s;
}

#enter-hint {
    color: #888;
    font-size: 13px;
    padding: 8px 16px;
    opacity: 0;
    transition: opacity 0.3s;
}

@media (max-width: 900px) {
    .task-container {
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
    }
    .sort-order-group {
        margin-left: 0;
        margin-top: 8px;
    }
}

@media (max-width: 600px) {
    .task-container {
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
    }
    ul#task-list li {
        flex-direction: column;
        align-items: flex-start;
        padding: 12px;
    }
}