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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    text-align: center;
    color: white;
    margin-bottom: 30px;
    font-size: 2.5em;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.create-form {
    background: white;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

.editor-container {
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
    transition: border-color 0.3s;
}

.editor-container:focus-within {
    border-color: #667eea;
}

.editor-container .ql-toolbar {
    border: none;
    border-bottom: 1px solid #e0e0e0;
    background: #f8f8f8;
}

.editor-container .ql-container {
    border: none;
    font-size: 14px;
}

.editor-container .ql-editor {
    min-height: 120px;
    max-height: 300px;
    overflow-y: auto;
}

.editor-container .ql-editor.ql-blank::before {
    color: #999;
    font-style: normal;
}

.file-upload {
    display: flex;
    align-items: center;
    gap: 12px;
}

.file-upload input[type="file"] {
    display: none;
}

.file-upload label {
    display: inline-block;
    padding: 10px 20px;
    background: #f0f0f0;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s;
}

.file-upload label:hover {
    background: #e0e0e0;
}

.file-upload .file-name {
    color: #666;
    font-size: 14px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 14px;
}

.todo-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.todo-item {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.todo-item:hover {
    transform: translateY(-2px);
}

.todo-item.completed {
    opacity: 0.7;
    border-left: 4px solid #28a745;
}

.todo-content {
    margin-bottom: 12px;
}

.todo-text {
    color: #333;
    font-size: 16px;
    line-height: 1.5;
    word-break: break-word;
}

.todo-text img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 8px;
    margin: 8px 0;
    cursor: pointer;
    transition: transform 0.3s;
}

.todo-text img:hover {
    transform: scale(1.02);
}

.todo-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.todo-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #eee;
    color: #999;
    font-size: 12px;
}

.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-pending {
    background: #fff3cd;
    color: #856404;
}

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

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: white;
}

.empty-state h2 {
    margin-bottom: 12px;
    font-size: 1.5em;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal {
    background: white;
    border-radius: 12px;
    padding: 24px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal h3 {
    margin-bottom: 16px;
    color: #333;
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.modal-actions .btn {
    flex: 1;
}

.preview-image {
    max-width: 100%;
    max-height: 200px;
    border-radius: 8px;
    margin-top: 12px;
    display: none;
}

.image-viewer {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    cursor: pointer;
}

.image-viewer img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 8px;
}

@media (max-width: 600px) {
    h1 {
        font-size: 1.8em;
    }
    
    .todo-actions {
        flex-direction: column;
    }
    
    .btn-sm {
        width: 100%;
    }
}