//
  // Forms
  // --------------------------------------------------
  
  
  // Normalize non-controls
  //
  // Restyle and baseline non-control form elements.
  
  fieldset {
    padding: 0;
    margin: 0;
    border: 0;

    // Chrome and Firefox set a `min-width: min-content;` on fieldsets,
    // so we reset that to ensure it behaves more like a standard block element.
    // See https://github.com/twbs/bootstrap/issues/12359.
    min-width: 0;

  }
  
  legend {
    display: block;
    width: 100%;
    padding: 0;
    margin-bottom: @line-height-computed;
    font-size: (@font-size-base * 1.5);
    line-height: inherit;
    color: @legend-color;
    border: 0;
    border-bottom: 1px solid @legend-border-color;
  }
  
  label {
    display: inline-block;

    max-width: 100%; // Force IE8 to wrap long content (see https://github.com/twbs/bootstrap/issues/13141)

    margin-bottom: 5px;
    font-weight: bold;
  }
  
  
  // Normalize form controls

  //
  // While most of our form styles require extra classes, some basic normalization
  // is required to ensure optimum display with or without those classes to better
  // address browser inconsistencies.

  
  // Override content-box in Normalize (* isn't specific enough)
  input[type="search"] {
    .box-sizing(border-box);
  }
  
  // Position radios and checkboxes better
  input[type="radio"],
  input[type="checkbox"] {
    margin: 4px 0 0;

    margin-top: 1px \9; // IE8-9

    line-height: normal;
  }

  input[type="file"] {
    display: block;
  }

  // Make range inputs behave like textual form controls
  input[type="range"] {
    display: block;
    width: 100%;
  }

  // Make multiple select elements height not fixed
  select[multiple],
  select[size] {
    height: auto;
  }

  // Focus for file, radio, and checkbox

  input[type="file"]:focus,
  input[type="radio"]:focus,
  input[type="checkbox"]:focus {
    .tab-focus();
  }

  // Adjust output element
  output {
    display: block;
    padding-top: (@padding-base-vertical + 1);
    font-size: @font-size-base;
    line-height: @line-height-base;
    color: @input-color;

  }
  
  
  // Common form controls
  //
  // Shared size and type resets for form controls. Apply `.form-control` to any
  // of the following form controls:
  //
  // select
  // textarea
  // input[type="text"]
  // input[type="password"]
  // input[type="datetime"]
  // input[type="datetime-local"]
  // input[type="date"]
  // input[type="month"]
  // input[type="time"]
  // input[type="week"]
  // input[type="number"]
  // input[type="email"]
  // input[type="url"]
  // input[type="search"]
  // input[type="tel"]
  // input[type="color"]
  
  .form-control {
    display: block;
    width: 100%;
    height: @input-height-base; // Make inputs at least the height of their button counterpart (base line-height + padding + border)
    padding: @padding-base-vertical @padding-base-horizontal;
    font-size: @font-size-base;
    line-height: @line-height-base;
    color: @input-color;

    background-color: @input-bg;
    background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
    border: 1px solid @input-border;

    border-radius: @input-border-radius; // Note: This has no effect on <select>s in some browsers, due to the limited stylability of <select>s in CSS.

    .box-shadow(inset 0 1px 1px rgba(0,0,0,.075));
    .transition(~"border-color ease-in-out .15s, box-shadow ease-in-out .15s");
  
    // Customize the `:focus` state to imitate native WebKit styles.
    .form-control-focus();
  
    // Placeholder

    .placeholder();

    // Unstyle the caret on `<select>`s in IE10+.
    &::-ms-expand {
      border: 0;
      background-color: transparent;
    }

    // Disabled and read-only inputs

    //
    // HTML5 says that controls under a fieldset > legend:first-child won't be
    // disabled if the fieldset is disabled. Due to implementation difficulty, we
    // don't honor that edge case; we style them as disabled anyway.

    &[disabled],
    &[readonly],
    fieldset[disabled] & {

      background-color: @input-bg-disabled;

      opacity: 1; // iOS fix for unreadable disabled content; see https://github.com/twbs/bootstrap/issues/11655
    }
  
    &[disabled],
    fieldset[disabled] & {
      cursor: @cursor-disabled;

    }
  
    // Reset height for `textarea`s
    textarea& {
      height: auto;
    }
  }

  // Search inputs in iOS
  //
  // This overrides the extra rounded corners on search inputs in iOS so that our
  // `.form-control` class can properly style them. Note that this cannot simply
  // be added to `.form-control` as it's not specific enough. For details, see
  // https://github.com/twbs/bootstrap/issues/11586.
  
  input[type="search"] {
    -webkit-appearance: none;
  }
  
  
  // Special styles for iOS temporal inputs
  //
  // In Mobile Safari, setting `display: block` on temporal inputs causes the
  // text within the input to become vertically misaligned. As a workaround, we
  // set a pixel line-height that matches the given height of the input, but only
  // for Safari. See https://bugs.webkit.org/show_bug.cgi?id=139848
  //
  // Note that as of 9.3, iOS doesn't support `week`.
  
  @media screen and (-webkit-min-device-pixel-ratio: 0) {
    input[type="date"],
    input[type="time"],
    input[type="datetime-local"],
    input[type="month"] {
      &.form-control {
        line-height: @input-height-base;
      }
  
      &.input-sm,
      .input-group-sm & {
        line-height: @input-height-small;
      }
  
      &.input-lg,
      .input-group-lg & {
        line-height: @input-height-large;
      }
    }
  }

  // Form groups
  //
  // Designed to help with the organization and spacing of vertical forms. For
  // horizontal forms, use the predefined grid classes.
  
  .form-group {

    margin-bottom: @form-group-margin-bottom;

  }
  
  
  // Checkboxes and radios
  //
  // Indent the labels to position radios/checkboxes as hanging controls.
  
  .radio,
  .checkbox {

    position: relative;

    display: block;

    margin-top: 10px;
    margin-bottom: 10px;

    label {

      min-height: @line-height-computed; // Ensure the input doesn't jump when there is no text
      padding-left: 20px;

      margin-bottom: 0;
      font-weight: normal;
      cursor: pointer;
    }
  }
  .radio input[type="radio"],
  .radio-inline input[type="radio"],
  .checkbox input[type="checkbox"],
  .checkbox-inline input[type="checkbox"] {

    position: absolute;

    margin-left: -20px;

    margin-top: 4px \9;

  }

  .radio + .radio,
  .checkbox + .checkbox {
    margin-top: -5px; // Move up sibling radios or checkboxes for tighter spacing
  }
  
  // Radios and checkboxes on same line
  .radio-inline,
  .checkbox-inline {

    position: relative;

    display: inline-block;
    padding-left: 20px;
    margin-bottom: 0;
    vertical-align: middle;
    font-weight: normal;
    cursor: pointer;
  }
  .radio-inline + .radio-inline,
  .checkbox-inline + .checkbox-inline {
    margin-top: 0;
    margin-left: 10px; // space out consecutive inline controls
  }
  
  // Apply same disabled cursor tweak as for inputs

  // Some special care is needed because <label>s don't inherit their parent's `cursor`.

  //
  // Note: Neither radios nor checkboxes can be readonly.
  input[type="radio"],

  input[type="checkbox"] {
    &[disabled],
    &.disabled,
    fieldset[disabled] & {
      cursor: @cursor-disabled;
    }
  }
  // These classes are used directly on <label>s

  .radio-inline,

  .checkbox-inline {

    &.disabled,

    fieldset[disabled] & {

      cursor: @cursor-disabled;

    }
  }

  // These classes are used on elements with <label> descendants
  .radio,
  .checkbox {
    &.disabled,
    fieldset[disabled] & {
      label {
        cursor: @cursor-disabled;
      }
    }
  }
  
  
  // Static form control text
  //
  // Apply class to a `p` element to make any string of text align with labels in
  // a horizontal form layout.
  
  .form-control-static {
    // Size it appropriately next to real form controls
    padding-top: (@padding-base-vertical + 1);
    padding-bottom: (@padding-base-vertical + 1);
    // Remove default margin from `p`
    margin-bottom: 0;
    min-height: (@line-height-computed + @font-size-base);
  
    &.input-lg,
    &.input-sm {
      padding-left: 0;
      padding-right: 0;
    }
  }

  
  // Form control sizing

  //
  // Build on `.form-control` with modifier classes to decrease or increase the
  // height and font-size of form controls.
  //
  // The `.form-group-* form-control` variations are sadly duplicated to avoid the
  // issue documented in https://github.com/twbs/bootstrap/issues/15074.

  .input-sm {

    .input-size(@input-height-small; @padding-small-vertical; @padding-small-horizontal; @font-size-small; @line-height-small; @input-border-radius-small);
  }
  .form-group-sm {
    .form-control {
      height: @input-height-small;
      padding: @padding-small-vertical @padding-small-horizontal;
      font-size: @font-size-small;
      line-height: @line-height-small;
      border-radius: @input-border-radius-small;
    }
    select.form-control {
      height: @input-height-small;
      line-height: @input-height-small;
    }
    textarea.form-control,
    select[multiple].form-control {
      height: auto;
    }
    .form-control-static {
      height: @input-height-small;
      min-height: (@line-height-computed + @font-size-small);
      padding: (@padding-small-vertical + 1) @padding-small-horizontal;
      font-size: @font-size-small;
      line-height: @line-height-small;
    }

  }
  
  .input-lg {

    .input-size(@input-height-large; @padding-large-vertical; @padding-large-horizontal; @font-size-large; @line-height-large; @input-border-radius-large);
  }
  .form-group-lg {
    .form-control {
      height: @input-height-large;
      padding: @padding-large-vertical @padding-large-horizontal;
      font-size: @font-size-large;
      line-height: @line-height-large;
      border-radius: @input-border-radius-large;
    }
    select.form-control {
      height: @input-height-large;
      line-height: @input-height-large;
    }
    textarea.form-control,
    select[multiple].form-control {
      height: auto;
    }
    .form-control-static {
      height: @input-height-large;
      min-height: (@line-height-computed + @font-size-large);
      padding: (@padding-large-vertical + 1) @padding-large-horizontal;
      font-size: @font-size-large;
      line-height: @line-height-large;
    }

  }
  
  
  // Form control feedback states
  //
  // Apply contextual and semantic states to individual form controls.

  .has-feedback {
    // Enable absolute positioning
    position: relative;
  
    // Ensure icons don't overlap text
    .form-control {
      padding-right: (@input-height-base * 1.25);
    }
  }
  // Feedback icon (requires .glyphicon classes)
  .form-control-feedback {
    position: absolute;
    top: 0;
    right: 0;
    z-index: 2; // Ensure icon is above input groups
    display: block;
    width: @input-height-base;
    height: @input-height-base;
    line-height: @input-height-base;
    text-align: center;
    pointer-events: none;
  }
  .input-lg + .form-control-feedback,
  .input-group-lg + .form-control-feedback,
  .form-group-lg .form-control + .form-control-feedback {
    width: @input-height-large;
    height: @input-height-large;
    line-height: @input-height-large;
  }
  .input-sm + .form-control-feedback,
  .input-group-sm + .form-control-feedback,
  .form-group-sm .form-control + .form-control-feedback {
    width: @input-height-small;
    height: @input-height-small;
    line-height: @input-height-small;
  }
  
  // Feedback states
  .has-success {
    .form-control-validation(@state-success-text; @state-success-text; @state-success-bg);
  }

  .has-warning {
    .form-control-validation(@state-warning-text; @state-warning-text; @state-warning-bg);
  }

  .has-error {
    .form-control-validation(@state-danger-text; @state-danger-text; @state-danger-bg);
  }

  // Reposition feedback icon if input has visible label above
  .has-feedback label {

    & ~ .form-control-feedback {
      top: (@line-height-computed + 5); // Height of the `label` and its margin
    }
    &.sr-only ~ .form-control-feedback {
      top: 0;
    }

  }
  
  
  // Help text
  //
  // Apply to any element you wish to create light text for placement immediately
  // below a form control. Use for general help, formatting, or instructional text.
  
  .help-block {
    display: block; // account for any element using help-block
    margin-top: 5px;
    margin-bottom: 10px;
    color: lighten(@text-color, 25%); // lighten the text some for contrast
  }

  // Inline forms
  //
  // Make forms appear inline(-block) by adding the `.form-inline` class. Inline
  // forms begin stacked on extra small (mobile) devices and then go inline when
  // viewports reach <768px.
  //
  // Requires wrapping inputs and labels with `.form-group` for proper display of
  // default HTML form controls and our custom form controls (e.g., input groups).
  //
  // Heads up! This is mixin-ed into `.navbar-form` in navbars.less.
  
  .form-inline {
  
    // Kick in the inline

    @media (min-width: @screen-sm-min) {

      // Inline-block all the things for "inline"

      .form-group {

        display: inline-block;
        margin-bottom: 0;
        vertical-align: middle;
      }
  
      // In navbar-form, allow folks to *not* use `.form-group`
      .form-control {
        display: inline-block;

        width: auto; // Prevent labels from stacking above inputs in `.form-group`
        vertical-align: middle;
      }
  
      // Make static controls behave like regular ones
      .form-control-static {
        display: inline-block;
      }
  
      .input-group {
        display: inline-table;
        vertical-align: middle;
  
        .input-group-addon,
        .input-group-btn,
        .form-control {
          width: auto;
        }

      }

      // Input groups need that 100% width though
      .input-group > .form-control {
        width: 100%;
      }
  
      .control-label {
        margin-bottom: 0;
        vertical-align: middle;

      }
  
      // Remove default margin on radios/checkboxes that were used for stacking, and

      // then undo the floating of radios and checkboxes to match.

      .radio,
      .checkbox {
        display: inline-block;
        margin-top: 0;
        margin-bottom: 0;

        vertical-align: middle;
  
        label {
          padding-left: 0;
        }

      }
      .radio input[type="radio"],
      .checkbox input[type="checkbox"] {

        position: relative;

        margin-left: 0;
      }

  
      // Re-override the feedback icon.
      .has-feedback .form-control-feedback {
        top: 0;
      }

    }
  }
  
  
  // Horizontal forms
  //
  // Horizontal forms are built on grid classes and allow you to create forms with
  // labels on the left and inputs on the right.
  
  .form-horizontal {

    // Consistent vertical alignment of radios and checkboxes
    //
    // Labels also get some reset styles, but that is scoped to a media query below.

    .radio,
    .checkbox,
    .radio-inline,
    .checkbox-inline {
      margin-top: 0;
      margin-bottom: 0;
      padding-top: (@padding-base-vertical + 1); // Default padding plus a border
    }
    // Account for padding we're adding to ensure the alignment and of help text
    // and other content below items
    .radio,
    .checkbox {

      min-height: (@line-height-computed + (@padding-base-vertical + 1));

    }
  
    // Make form groups behave like rows
    .form-group {
      .make-row();
    }

    // Reset spacing and right align labels, but scope to media queries so that
    // labels on narrow viewports stack the same as a default form example.

    @media (min-width: @screen-sm-min) {
      .control-label {
        text-align: right;

        margin-bottom: 0;
        padding-top: (@padding-base-vertical + 1); // Default padding plus a border
      }
    }
  
    // Validation states
    //
    // Reposition the icon because it's now within a grid column and columns have
    // `position: relative;` on them. Also accounts for the grid gutter padding.
    .has-feedback .form-control-feedback {
      right: floor((@grid-gutter-width / 2));
    }
  
    // Form group sizes
    //
    // Quick utility class for applying `.input-lg` and `.input-sm` styles to the
    // inputs and labels within a `.form-group`.
    .form-group-lg {
      @media (min-width: @screen-sm-min) {
        .control-label {
          padding-top: (@padding-large-vertical + 1);
          font-size: @font-size-large;
        }
      }
    }
    .form-group-sm {
      @media (min-width: @screen-sm-min) {
        .control-label {
          padding-top: (@padding-small-vertical + 1);
          font-size: @font-size-small;
        }

      }
    }
  }