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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f5f5f5;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 800px;
    padding: 30px;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-size: 24px;
}

.button-section {
    margin-bottom: 30px;
    display: flex;
    gap: 10px;
}

.copy-button {
    flex: 1;
    height: 80px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.copy-button:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.copy-button:active {
    transform: translateY(0);
}

.edit-button {
    width: 150px;
    height: 80px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.edit-button:hover {
    background-color: #218838;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.edit-button.active {
    background-color: #dc3545;
}

.edit-button.active:hover {
    background-color: #c82333;
}

.button-icon {
    font-size: 28px;
}

.data-section {
    margin-bottom: 30px;
}

.data-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.data-item {
    display: flex;
    align-items: center;
    padding: 12px;
    background-color: #f8f9fa;
    border-radius: 6px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.data-item:hover {
    background-color: #e9ecef;
}

.data-item.active {
    background-color: #fff3cd;
    border: 2px solid #ffc107;
}

.data-item.completed {
    background-color: #d4edda;
    color: #155724;
}

.item-label {
    font-weight: bold;
    color: #495057;
    min-width: 200px;
}

.item-value {
    color: #6c757d;
    margin-left: 10px;
    flex: 1;
}

.item-value.placeholder {
    color: #adb5bd;
    font-style: italic;
}

.item-input {
    flex: 1;
    padding: 6px 10px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
}

.item-input:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.file-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.file-button {
    padding: 10px 20px;
    background-color: #6c757d;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s ease;
}

.file-button:hover {
    background-color: #5a6268;
}

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: #28a745;
    color: white;
    padding: 15px 25px;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    display: none;
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

.notification.show {
    display: block;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@media (max-width: 600px) {
    .container {
        width: 95%;
        padding: 20px;
    }
    
    .item-label {
        min-width: 150px;
        font-size: 14px;
    }
    
    .copy-button {
        height: 60px;
        font-size: 18px;
    }
}