// // 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 {

.box-sizing(border-box);

}

// Position radios and checkboxes better input, input {

margin: 4px 0 0;
margin-top: 1px \9; // IE8-9
line-height: normal;

}

input {

display: block;

}

// Make range inputs behave like textual form controls input {

display: block;
width: 100%;

}

// Make multiple select elements height not fixed select, select {

height: auto;

}

// Focus for file, radio, and checkbox input:focus, input:focus, input: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 // input // input // input // input // input // input // input // input // input // input // input // input // input

.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 // github.com/twbs/bootstrap/issues/11586.

input {

-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 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, .radio-inline input, .checkbox input, .checkbox-inline input {

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, input {

&[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 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;
    }
  }
}

}