/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*
The following CSS variables define the main, public API for styling QuantLab.
These variables should be used by all plugins wherever possible. In other
words, plugins should not define custom colors, sizes, etc unless absolutely
necessary. This enables users to change the visual theme of QuantLab
by changing these variables.
Many variables appear in an ordered sequence (0,1,2,3). These sequences
are designed to work well together, so for example, `--jp-border-color1` should
be used with `--jp-layout-color1`. The numbers have the following meanings:
* 0: super-primary, reserved for special emphasis
* 1: primary, most important under normal situations
* 2: secondary, next most important under normal situations
* 3: tertiary, next most important under normal situations
Throughout QuantLab, we are mostly following principles from Google's
Material Design when selecting colors. We are not, however, following
all of MD as it is not optimized for dense, information rich UIs.
*/


:root {

  /* Borders
  The following variables, specify the visual styling of borders in QuantLab.
   */

  --jp-border-width: 1px;
  --jp-border-color0: var(--md-grey-400);
  --jp-border-color1: var(--md-grey-400);
  --jp-border-color2: var(--md-grey-300);
  --jp-border-color3: var(--md-grey-200);

  /* UI Fonts
  The UI font CSS variables are used for the typography all of the QuantLab
  user interface elements that are not directly user generated content.
  */

  --jp-ui-font-scale-factor: 1.2;
  --jp-ui-font-size0: calc(var(--jp-ui-font-size1)/var(--jp-ui-font-scale-factor));
  --jp-ui-font-size1: 13px; /* Base font size */
  --jp-ui-font-size2: calc(var(--jp-ui-font-size1)*var(--jp-ui-font-scale-factor));
  --jp-ui-font-size3: calc(var(--jp-ui-font-size2)*var(--jp-ui-font-scale-factor));
  --jp-ui-font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;

  /* Use these font colors against the corresponding main layout colors.
     In a light theme, these go from dark to light.
  */

  --jp-ui-font-color0: rgba(0,0,0,1.0);
  --jp-ui-font-color1: rgba(0,0,0,0.8);
  --jp-ui-font-color2: rgba(0,0,0,0.5);
  --jp-ui-font-color3: rgba(0,0,0,0.3);

  /* Use these against the brand/accent/warn/error colors.
     These will typically go from light to darker, in both a dark and light theme
   */

  --jp-inverse-ui-font-color0: rgba(255,255,255,1);
  --jp-inverse-ui-font-color1: rgba(255,255,255,1.0);
  --jp-inverse-ui-font-color2: rgba(255,255,255,0.7);
  --jp-inverse-ui-font-color3: rgba(255,255,255,0.5);

  /* Content Fonts
  Content font variables are used for typography of user generated content.
  */

  --jp-content-font-size: 13px;
  --jp-content-line-height: 1.5;
  --jp-content-font-color0: black;
  --jp-content-font-color1: black;
  --jp-content-font-color2: var(--md-grey-700);
  --jp-content-font-color3: var(--md-grey-500);

  --jp-content-link-color: var(--md-blue-600);

  --jp-ui-font-scale-factor: 1.2;
  --jp-ui-font-size0: calc(var(--jp-ui-font-size1)/var(--jp-ui-font-scale-factor));
  --jp-ui-font-size1: 13px; /* Base font size */
  --jp-ui-font-size2: calc(var(--jp-ui-font-size1)*var(--jp-ui-font-scale-factor));
  --jp-ui-font-size3: calc(var(--jp-ui-font-size2)*var(--jp-ui-font-scale-factor));

  --jp-code-font-size: 13px;
  --jp-code-line-height: 1.307;
  --jp-code-padding: 5px;
  --jp-code-font-family: monospace;

  /* Layout
  The following are the main layout colors use in QuantLab. In a light
  theme these would go from light to dark.
  */

  --jp-layout-color0: white;
  --jp-layout-color1: white;
  --jp-layout-color2: var(--md-grey-200);
  --jp-layout-color3: var(--md-grey-400);
  --jp-layout-color4: var(--md-grey-600);

  /* Brand/accent */

  --jp-brand-color0: var(--md-blue-700);
  --jp-brand-color1: var(--md-blue-500);
  --jp-brand-color2: var(--md-blue-300);
  --jp-brand-color3: var(--md-blue-100);

  --jp-accent-color0: var(--md-green-700);
  --jp-accent-color1: var(--md-green-500);
  --jp-accent-color2: var(--md-green-300);
  --jp-accent-color3: var(--md-green-100);

  /* State colors (warn, error, success, info) */

  --jp-warn-color0: var(--md-orange-700);
  --jp-warn-color1: var(--md-orange-500);
  --jp-warn-color2: var(--md-orange-300);
  --jp-warn-color3: var(--md-orange-100);

  --jp-error-color0: var(--md-red-700);
  --jp-error-color1: var(--md-red-500);
  --jp-error-color2: var(--md-red-300);
  --jp-error-color3: var(--md-red-100);

  --jp-success-color0: var(--md-green-700);
  --jp-success-color1: var(--md-green-500);
  --jp-success-color2: var(--md-green-300);
  --jp-success-color3: var(--md-green-100);

  --jp-info-color0: var(--md-cyan-700);
  --jp-info-color1: var(--md-cyan-500);
  --jp-info-color2: var(--md-cyan-300);
  --jp-info-color3: var(--md-cyan-100);

  /* Window/plugin scroll bar styling */

  --jp-scrollbar-thumb-color: var(--jp-layout-color2);
  --jp-scrollbar-background-color: var(--jp-layout-color0);
  --jp-scrollbar-border: 1px solid var(--jp-border-color2);

  /* Cell specific styles */

  --jp-cell-editor-background: var(--md-grey-100);
  --jp-cell-editor-border-color: var(--md-grey-300);
  --jp-cell-editor-box-shadow: inset 0 0 2px var(--md-blue-300);
  --jp-cell-editor-background-active: var(--jp-layout-color0);
  --jp-cell-editor-border-color-active: var(--jp-brand-color1);
  --jp-cell-padding: 5px;
  --jp-cell-prompt-width: 100px;
  --jp-cell-prompt-font-family: 'Roboto Mono', monospace;
  --jp-cell-prompt-letter-spacing: 0px;
  --jp-cell-prompt-opacity: 1.0;
  --jp-cell-prompt-opacity-not-active: 0.5;
  --jp-cell-prompt-font-color-not-active: var(--md-grey-700);
  /* A custom blend of MD grey and blue 600
   * See https://meyerweb.com/eric/tools/color-blend/#546E7A:1E88E5:5:hex */
  --jp-cell-inprompt-font-color: #307FC1;
  /* A custom blend of MD grey and orange 600
   * https://meyerweb.com/eric/tools/color-blend/#546E7A:F4511E:5:hex */
  --jp-cell-outprompt-font-color: #BF5B3D;

  /* Notebook specific styles */

  --jp-notebook-padding: 10px;
  --jp-notebook-scroll-padding: 100px;
  --jp-notebook-multiselected-color: var(--md-blue-50);

  /* Rendermime styles */

  --jp-rendermime-error-background: #fdd;
  --jp-rendermime-row-background: var(--md-grey-100);
  --jp-rendermime-row-hover-background: var(--md-light-blue-50);

  /* Dialog specific styles */

  --jp-dialog-background: rgba(0,0,0,.25);

  /* Console specific styles */

  --jp-console-background: var(--md-grey-100);

  /* Toolbar specific styles */

  --jp-toolbar-border-color: var(--jp-border-color1);
  --jp-toolbar-micro-height: 8px;
  --jp-toolbar-background: var(--jp-layout-color1);
  --jp-toolbar-box-shadow: 0px 0px 2px 0px rgba(0,0,0,0.24);
  --jp-toolbar-header-margin: 4px 4px 0px 4px;
  --jp-toolbar-active-background: var(--md-grey-300);

  /* Input field styles */

  --jp-input-box-shadow: inset 0 0 2px var(--md-blue-300);
  --jp-input-background-color-active: var(--jp-layout-color1);
  --jp-input-background-color-hover: var(--jp-layout-color1);
  --jp-input-background-color: var(--md-grey-100);
  --jp-input-border-color: var(--jp-border-color1);
  --jp-input-border-color-active: var(--jp-brand-color1);

  /* General editor styles */

  --jp-editor-selected-background: #d9d9d9;
  --jp-editor-selected-focused-background: #d7d4f0;
  --jp-editor-cursor-color: var(--jp-ui-font-color0);

  /* Code mirror specific styles */

  --jp-mirror-editor-keyword-color: #008000;
  --jp-mirror-editor-atom-color: #88F;
  --jp-mirror-editor-number-color: #080;
  --jp-mirror-editor-def-color: #00f;
  --jp-mirror-editor-variable-color: var(--md-grey-900);
  --jp-mirror-editor-variable-2-color: var(--md-grey-800);
  --jp-mirror-editor-variable-3-color: var(--md-grey-700);
  --jp-mirror-editor-punctuation-color: #05a;
  --jp-mirror-editor-property-color: #05a;
  --jp-mirror-editor-operator-color: #AA22FF;
  --jp-mirror-editor-comment-color: #408080;
  --jp-mirror-editor-string-color: #BA2121;
  --jp-mirror-editor-string-2-color: #f50;
  --jp-mirror-editor-meta-color: #AA22FF;
  --jp-mirror-editor-qualifier-color: #555;
  --jp-mirror-editor-builtin-color: #008000;
  --jp-mirror-editor-bracket-color: #997;
  --jp-mirror-editor-tag-color: #170;
  --jp-mirror-editor-attribute-color: #00c;
  --jp-mirror-editor-header-color: blue;
  --jp-mirror-editor-quote-color: #090;
  --jp-mirror-editor-link-color: #00c;
  --jp-mirror-editor-error-color: #f00;
  --jp-mirror-editor-hr-color: #999;

  /* Vega extension styles */

  --jp-vega-background: white;

}
