body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #8e44ad, #3498db);
    color: #fff;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    max-width: 500px;
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    padding: 20px 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(8px);
    text-align: center;
}

.logo {
    max-width: 120px;
    margin: 0 auto 20px;
}

h1 {
    text-align: center;
    margin-bottom: 20px;
    color: #fff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

input[type="text"],
button {
    font-size: 16px;
}

#task-input,
#item-filter {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: none;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    outline: none;
}

#task-input::placeholder,
#item-filter::placeholder {
    color: #ddd;
}

button {
    display: inline-block;
    padding: 10px 15px;
    margin: 5px 0;
    border: none;
    border-radius: 8px;
    background: #3498db;
    color: #fff;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

button:hover {
    background: #2980b9;
}

.task-list {
    list-style: none;
    padding: 0;
}

.task {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    margin: 10px 0;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.task span {
    flex: 1;
    word-break: break-word;
}

.task.completed span {
    text-decoration: line-through;
    color: #bdc3c7;
}

.filters {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.filters button {
    margin: 0 5px;
    padding: 8px 12px;
    background: #8e44ad;
}

.filters button:hover {
    background: #6f2b9f;
}

.task-summary {
    margin-top: 20px;
    text-align: center;
}

.task-summary p {
    margin: 5px 0;
    color: #fff;
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}