:root {
    --primary-color: #4a6fa5;
    --secondary-color: #166088;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --danger-color: #dc3545;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.toolbar {
    display: flex;
    gap: 1rem;
}

.toolbar button, .editor-actions button {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.2s;
}

#new-note-btn {
    background-color: var(--light-color);
    color: var(--dark-color);
}

#new-note-btn:hover {
    background-color: #e2e6ea;
}

#search-notes {
    flex-grow: 1;
    padding: 0.5rem;
    border: none;
    border-radius: 4px;
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.sidebar {
    width: 250px;
    background-color: white;
    border-right: 1px solid #ddd;
    overflow-y: auto;
}

.notes-list {
    padding: 0.5rem;
}

.note-item {
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.note-item:hover {
    background-color: #f0f0f0;
}

.note-item.active {
    background-color: var(--primary-color);
    color: white;
}

.note-item-title {
    font-weight: bold;
    margin-bottom: 0.25rem;
}

.note-item-preview {
    font-size: 0.8rem;
    color: #666;
}

.note-item.active .note-item-preview {
    color: #eee;
}

.editor-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#editor {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    background-color: white;
}

.editor-actions {
    padding: 1rem;
    background-color: white;
    border-top: 1px solid #ddd;
    display: flex;
    gap: 0.5rem;
}

#save-note-btn {
    background-color: var(--secondary-color);
    color: white;
}

#save-note-btn:hover {
    background-color: #0d4b6e;
}

#delete-note-btn {
    background-color: var(--danger-color);
    color: white;
}

#delete-note-btn:hover {
    background-color: #c82333;
}

.ql-toolbar {
    background-color: white;
    border: none !important;
    border-bottom: 1px solid #ddd !important;
}

.ql-container {
    border: none !important;
    font-size: 1rem;
}

.ql-editor {
    min-height: 100%;
    padding: 1.5rem !important;
}