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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    overflow: hidden;
    background-color: #f5f5f5;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.toolbar {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 20px;
    background-color: #fff;
    border-bottom: 1px solid #e0e0e0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    flex-wrap: wrap;
}

.tool-group {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
    border-right: 1px solid #e0e0e0;
}

.tool-group:last-child {
    border-right: none;
}

.tool-btn {
    width: 40px;
    height: 40px;
    border: none;
    background-color: #f5f5f5;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
    transition: all 0.2s;
}

.tool-btn:hover {
    background-color: #e0e0e0;
}

.tool-btn.active {
    background-color: #2196f3;
    color: #fff;
}

.tool-btn:active {
    transform: scale(0.95);
}

.color-picker-container {
    display: flex;
    align-items: center;
}

#colorPicker {
    width: 40px;
    height: 40px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    padding: 2px;
}

#colorPicker:hover {
    border-color: #2196f3;
}

.size-picker {
    display: flex;
    align-items: center;
}

#sizePicker {
    padding: 8px 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background-color: #fff;
    font-size: 14px;
    cursor: pointer;
    outline: none;
}

#sizePicker:hover {
    border-color: #2196f3;
}

#sizePicker:focus {
    border-color: #2196f3;
}

.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    background-color: #fafafa;
    background-image: 
        linear-gradient(rgba(0, 0, 0, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.05) 1px, transparent 1px);
    background-size: 20px 20px;
}

#drawingCanvas {
    position: absolute;
    top: 0;
    left: 0;
    cursor: crosshair;
}

.elements-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.sticky-note {
    position: absolute;
    width: 200px;
    min-height: 150px;
    background-color: #fff9c4;
    box-shadow: 2px 2px 8px rgba(0, 0, 0, 0.2);
    padding: 16px;
    border-radius: 4px;
    pointer-events: auto;
    cursor: move;
    user-select: none;
}

.sticky-note.yellow { background-color: #fff9c4; }
.sticky-note.pink { background-color: #f8bbd9; }
.sticky-note.blue { background-color: #b3e5fc; }
.sticky-note.green { background-color: #c8e6c9; }
.sticky-note.orange { background-color: #ffe0b2; }

.sticky-note-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.sticky-note-colors {
    display: flex;
    gap: 4px;
}

.color-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
}

.color-dot:hover {
    border-color: #333;
}

.color-dot.yellow { background-color: #fff9c4; }
.color-dot.pink { background-color: #f8bbd9; }
.color-dot.blue { background-color: #b3e5fc; }
.color-dot.green { background-color: #c8e6c9; }
.color-dot.orange { background-color: #ffe0b2; }

.sticky-note-delete {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: #666;
    padding: 0 4px;
}

.sticky-note-delete:hover {
    color: #f44336;
}

.sticky-note-content {
    width: 100%;
    min-height: 100px;
    border: none;
    background: transparent;
    font-size: 14px;
    line-height: 1.5;
    resize: none;
    outline: none;
    font-family: inherit;
}

.text-element {
    position: absolute;
    padding: 8px 12px;
    background-color: transparent;
    border: 2px solid transparent;
    border-radius: 4px;
    pointer-events: auto;
    cursor: move;
    min-width: 60px;
    min-height: 30px;
}

.text-element:hover {
    border-color: #2196f3;
}

.text-element.selected {
    border-color: #2196f3;
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.3);
}

.text-element-content {
    border: none;
    background: transparent;
    font-size: 16px;
    outline: none;
    width: 100%;
    min-height: 24px;
    font-family: inherit;
}

.status-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 8px 20px;
    background-color: #fff;
    border-top: 1px solid #e0e0e0;
    font-size: 13px;
    color: #666;
}

.separator {
    color: #ccc;
}

#zoomLevel {
    font-weight: 600;
    color: #333;
}

.element-resizer {
    position: absolute;
    width: 12px;
    height: 12px;
    background-color: #2196f3;
    border: 2px solid #fff;
    border-radius: 50%;
    cursor: se-resize;
    right: -6px;
    bottom: -6px;
    display: none;
}

.text-element.selected .element-resizer,
.sticky-note.selected .element-resizer {
    display: block;
}

.custom-confirm {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    padding: 24px 32px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    text-align: center;
    min-width: 280px;
}

.custom-confirm .message {
    font-size: 16px;
    color: #333;
    margin-bottom: 24px;
}

.custom-confirm .buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.custom-confirm .btn {
    padding: 8px 24px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.custom-confirm .btn-cancel {
    background-color: #e0e0e0;
    color: #333;
}

.custom-confirm .btn-cancel:hover {
    background-color: #d0d0d0;
}

.custom-confirm .btn-confirm {
    background-color: #2196f3;
    color: #fff;
}

.custom-confirm .btn-confirm:hover {
    background-color: #1976d2;
}

.custom-confirm-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
}