body {
    overflow: hidden;
    /* Prevent scrolling */
    background-color: #e2e8f0;
}

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

.toolbar {
    height: 60px;
    background: white;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    z-index: 10;
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    color: var(--text-color);
    transition: background 0.2s;
}

.back-btn:hover {
    background: var(--glass-bg);
}

.divider {
    width: 1px;
    height: 30px;
    background: var(--card-border);
}

.tool-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 500;
}

input[type="color"] {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 0;
    background: none;
}

input[type="range"] {
    width: 100px;
}

.workspace {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background-color: #e2e8f0;
    /* Move bg color here if needed, or keep on body */
}

.sidebar-right {
    width: 300px;
    background: white;
    border-left: 1px solid var(--card-border);
    padding: var(--spacing-md);
    overflow-y: auto;
    z-index: 5;
}

#drawing-canvas {
    background: white;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    cursor: crosshair;
    touch-action: none;
    /* Important for pointer events */
}

/* Menu Dropdown */
.menu-dropdown {
    position: relative;
}

.menu-btn {
    font-weight: 600;
    padding: 8px 12px;
    border-radius: var(--radius-md);
    transition: background 0.2s;
    font-size: 0.95rem;
}

.menu-btn:hover,
.menu-btn.active {
    background-color: var(--glass-bg);
}

.menu-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    min-width: 180px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-md);
    z-index: 100;
    border: 1px solid var(--card-border);
    margin-top: 4px;
    padding: 4px;
}

.menu-content.show {
    display: block;
}

.menu-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 8px 12px;
    text-align: left;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-color);
    transition: background 0.2s;
}

.menu-item:hover {
    background-color: var(--glass-bg);
}

.submenu {
    padding-left: 12px;
    margin-top: 2px;
    border-left: 2px solid var(--glass-border);
    margin-left: 12px;
}

.submenu.hidden {
    display: none;
}

.submenu-item {
    display: block;
    width: 100%;
    padding: 6px 12px;
    text-align: left;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.submenu-item:hover {
    background-color: var(--glass-bg);
    color: var(--primary-color);
}

.btn-danger {
    background-color: #fee2e2;
    color: #ef4444;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
}

.btn-danger:hover {
    background-color: #fecaca;
}

/* Tool Buttons */
.tool-group {
    display: flex;
    gap: 4px;
    background: var(--glass-bg);
    padding: 4px;
    border-radius: var(--radius-md);
}

.tool-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: all 0.2s;
}

.tool-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--text-color);
}

.tool-btn.active {
    background-color: white;
    color: var(--primary-color);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.tool-options {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.tool-options.hidden {
    display: none;
}

.btn-secondary {
    background-color: var(--glass-bg);
    color: var(--text-color);
    padding: 8px 12px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.btn-secondary:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    width: 300px;
    animation: modalPop 0.2s ease-out;
}

@keyframes modalPop {
    from {
        transform: scale(0.95);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

.modal-content h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
    color: var(--text-color);
}

.input-group {
    margin-bottom: var(--spacing-md);
}

.input-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.input-group input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.btn {
    display: inline-flex;
    /* Override common.css display: none */
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    transition: background 0.2s;
    cursor: pointer;
}

.btn:hover {
    background-color: var(--glass-bg);
}