Bootstrap/lib/patterns.less

// Patterns.less
// Repeatable UI elements outside the base styles provided from the scaffolding
// ----------------------------------------------------------------------------


// NAVBAR (FIXED AND STATIC)
// -------------------------

// Navbar variables
@navBarHeight: 40px;
@navBarBgStart: #333;
@navBarBgEnd: #222;

// Common styles
.navbar {
  overflow: visible;
}
// gradient is applied to it's own element because overflow visible is not honored by ie when filter is present
.navbar-inner {
  background-color: @navBarBgEnd;
  #gradient > .vertical(@navBarBgStart, @navBarBgEnd);
  @shadow: 0 1px 3px rgba(0,0,0,.25), inset 0 -1px 0 rgba(0,0,0,.1);
  .box-shadow(@shadow);
}
// Text and links
.navbar {
  // Links get text-shadow
  a {
    color: @grayLight;
    text-shadow: 0 -1px 0 rgba(0,0,0,.25);
  }
  // Hover and active states
  .brand a:hover,
  ul .active > a {
    color: @white;
    text-decoration: none;
    background-color: @navBarBgStart;
    background-color: rgba(255,255,255,.05);
  }
  // Website or project name
  .brand {
    float: left;
    display: block;
    padding: 8px 20px 12px;
    margin-left: -20px; // negative indent to left-align the text down the page
    font-size: 20px;
    font-weight: 200;
    line-height: 1;
    color: @white;
  }
  // Plain text in topbar
  p {
    margin: 0;
    line-height: 40px;
    a:hover {
      color: @white;
      background-color: transparent;
    }
  }
}

// Navbar search
.navbar-search {
  position: relative;
  float: left;
  margin-top: 6px;
  margin-bottom: 0;
  .search-query {
    padding: 4px 9px;
    #font > .sans-serif(13px, normal, 1);
    color: @white;
    color: rgba(255,255,255,.75);
    background-color: #444;
    background-color: rgba(255,255,255,.3);
    border: 1px solid #111;
    @shadow: inset 0 1px 2px rgba(0,0,0,.1), 0 1px 0px rgba(255,255,255,.15);
    .box-shadow(@shadow);
    .transition(none);

    // Placeholder text gets special styles; can't be bundled together though for some reason
    &:-moz-placeholder {
      color: @grayLighter;
    }
    &::-webkit-input-placeholder {
      color: @grayLighter;
    }
    // Hover states
    &:hover {
      color: @white;
      background-color: @grayLight;
      background-color: rgba(255,255,255,.5);
    }
    // Focus states (we use .focused since IE8 and down doesn't support :focus)
    &:focus,
    &.focused {
      padding: 5px 10px;
      color: @grayDark;
      text-shadow: 0 1px 0 @white;
      background-color: @white;
      border: 0;
      .box-shadow(0 0 3px rgba(0,0,0,.15));
      outline: 0;
    }
  }
}


// Static navbar
.navbar-static {
  margin-bottom: @baseLineHeight;
}
.navbar-static .navbar-inner {
  padding-left:  20px;
  padding-right: 20px;
  .border-radius(4px);
}

// Fixed navbar
.navbar-fixed {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 10000;
}



// NAVIGATION
// ----------

// Nav for navbar and topbar
// ul.nav for all topbar based navigation to avoid inheritance issues and over-specificity
.nav {
  position: relative;
  left: 0;
  display: block;
  float: left;
  margin: 0 10px 0 0;
  > li {
    display: block;
    float: left;
  }
  a {
    display: block;
    float: none;
    padding: 10px 10px 11px;
    line-height: 19px;
    text-decoration: none;
    &:hover {
      color: @white;
      text-decoration: none;
    }
  }
  .active > a {
    background-color: #222;
    background-color: rgba(0,0,0,.5);
  }
  // Dividers (basically a vertical hr)
  .divider {
    height: 40px;
    width: 1px;
    margin: 0 5px;
    overflow: hidden;
    background-color: #222;
    border-right: 1px solid #444;
  }

  // Secondary (floated right) nav in topbar
  &.secondary-nav {
    float: right;
    margin-left: 10px;
    margin-right: 0;
    .dropdown-menu {
      right: 0;
      border: 0;
    }
  }
  // Dropdowns within the .nav
  .dropdown-toggle:hover,
  .dropdown.open .dropdown-toggle {
    background: #444;
    background: rgba(255,255,255,.05);
  }
  .dropdown-menu {
    background-color: #333;
    .dropdown-toggle {
      color: @white;
      &.open {
        background: #444;
        background: rgba(255,255,255,.05);
      }
    }
    li a {
      color: #999;
      text-shadow: 0 1px 0 rgba(0,0,0,.5);
      &:hover {
        #gradient > .vertical(#292929,#191919);
        color: @white;
      }
    }
    .active a {
      color: @white;
    }
    .divider {
      background-color: #222;
      border-color: #444;
    }
  }
}

.topbar ul .dropdown-menu li a {
  padding: 4px 15px;
}

// Dropdown Menus
// Use the .menu class on any <li> element within the topbar or ul.tabs and you'll get some superfancy dropdowns
.dropdown {
  position: relative;
}
// The link that is clicked to toggle the dropdown
.dropdown-toggle:after {
  display: inline-block;
  width: 0;
  height: 0;
  margin-top: 8px;
  margin-left: 6px;
  text-indent: -99999px;
  vertical-align: top;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid @white;
  .opacity(30);
  content: "&darr;";
}
.dropdown:hover .dropdown-toggle:after {
  .opacity(100);
}
// The dropdown menu (ul)
.dropdown-menu {
  position: absolute;
  top: 40px;
  z-index: 900;
  float: left;
  display: none; // None by default, but block on "open" of the menu
  min-width: 160px;
  max-width: 220px;
  _width: 160px;
  padding: 6px 0;
  margin-left: 0; // override default ul styles
  margin-right: 0;
  background-color: @white;
  border-color: #999;
  border-color: rgba(0,0,0,.2);
  border-style: solid;
  border-width: 0 1px 1px;
  .border-radius(0 0 6px 6px);
  .box-shadow(0 2px 4px rgba(0,0,0,.2));
  .background-clip(padding-box);
  zoom: 1; // do we need this?

  // Unfloat any li's to make them stack
  li {
    float: none;
    display: block;
    background-color: none;
  }
  // Dividers (basically an hr) within the dropdown
  .divider {
    height: 1px;
    margin: 5px 0;
    overflow: hidden;
    background-color: #eee;
    border-bottom: 1px solid @white;
  }
}

.topbar .dropdown-menu, .dropdown-menu {
  // Links within the dropdown menu
  a {
    display: block;
    padding: 4px 15px;
    clear: both;
    font-weight: normal;
    line-height: 18px;
    color: @gray;
    text-shadow: 0 1px 0 @white;
    // Hover state
    &:hover {
      color: @grayDark;
      text-decoration: none;
      #gradient > .vertical(#eeeeee, #dddddd);
      @shadow: inset 0 1px 0 rgba(0,0,0,.025), inset 0 -1px rgba(0,0,0,.025);
      .box-shadow(@shadow);
    }
  }
}

// Open state for the dropdown
.dropdown.open {
  .dropdown-toggle {
    color: @white;
    background: #ccc;
    background: rgba(0,0,0,.3);
  }
  .dropdown-menu {
    display: block;
  }
}




// PAGE HEADERS
// ------------

.hero-unit {
  padding: 60px;
  margin-bottom: 30px;
  background-color: #f5f5f5;
  .border-radius(6px);
  h1 {
    margin-bottom: 0;
    font-size: 60px;
    line-height: 1;
    letter-spacing: -1px;
  }
  p {
    font-size: 18px;
    font-weight: 200;
    line-height: @baseLineHeight * 1.5;
  }
}
footer {
  padding-top: @baseLineHeight - 1;
  margin-top: @baseLineHeight - 1;
  border-top: 1px solid #eee;
}


// PAGE HEADERS
// ------------

.page-header {
  margin-bottom: @baseLineHeight * 1.5;
  border-bottom: 1px solid #eee;
  .box-shadow(0 1px 0 rgba(255,255,255,.5));
  h1 {
    margin-bottom: @baseLineHeight * .75;
  }
}


// BUTTON STYLES
// -------------

// Shared colors for buttons and alerts
.btn,
.alert-message {
  // Set text color
  &.danger,
  &.danger:hover,
  &.error,
  &.error:hover,
  &.success,
  &.success:hover,
  &.info,
  &.info:hover {
    color: @white
  }
  // Danger and error appear as red
  &.danger,
  &.error {
    .gradientBar(#ee5f5b, #c43c35);
  }
  // Success appears as green
  &.success {
    .gradientBar(#62c462, #57a957);
  }
  // Info appears as a neutral blue
  &.info {
    .gradientBar(#5bc0de, #339bb9);
  }
}

// Base .btn styles
.btn {
  // Button Base
  display: inline-block;
  padding: 5px 14px 6px;
  font-size: @baseFontSize;
  line-height: normal;
  color: #333;
  text-shadow: 0 1px 1px rgba(255,255,255,.75);
  #gradient > .vertical-three-colors(#ffffff, #ffffff, 25%, darken(#ffffff, 10%)); // Don't use .gradientbar() here since it does a three-color gradient
  border: 1px solid #ccc;
  border-bottom-color: #bbb;
  .border-radius(4px);
  @shadow: inset 0 1px 0 rgba(255,255,255,.2), 0 1px 2px rgba(0,0,0,.05);
  .box-shadow(@shadow);
  cursor: pointer;

  &:hover {
    color: @grayDark;
    text-decoration: none;
    background-position: 0 -15px;
  }

  // Focus state for keyboard and accessibility
  &:focus {
    outline: 1px dotted #666;
  }

  // Primary Button Type
  &.primary {
    color: @white;
    text-shadow: 0 -1px 0 rgba(0,0,0,.25);
    .gradientBar(@blue, @blueDark)
  }

   // Transitions
  .transition(.1s linear all);

  // Active and Disabled states
  &.active,
  &:active {
    @shadow: inset 0 2px 4px rgba(0,0,0,.25), 0 1px 2px rgba(0,0,0,.05);
    .box-shadow(@shadow);
  }
  &.disabled {
    cursor: default;
    background-image: none;
    .reset-filter();
    .opacity(65);
    .box-shadow(none);
  }
  &[disabled] {
    // disabled pseudo can't be included with .disabled
    // def because IE8 and below will drop it ;_;
    cursor: default;
    background-image: none;
    .reset-filter();
    .opacity(65);
    .box-shadow(none);
  }

  // Button Sizes
  &.large {
    padding: 9px 14px 9px;
    font-size: @baseFontSize + 2px;
    line-height: normal;
    .border-radius(6px);
  }
  &.small {
    padding: 7px 9px 7px;
    font-size: @baseFontSize - 2px;
  }
}
// Super jank hack for removing border-radius from IE9 so we can keep filter gradients on alerts and buttons
:root .alert-message,
:root .btn {
  border-radius: 0 \0;
}

// Help Firefox not be a jerk about adding extra padding to buttons
button.btn,
input[type=submit].btn {
  &::-moz-focus-inner {
  	padding: 0;
  	border: 0;
  }
}

// Button groups
// -------------

// Group multiple button groups together for a toolbar
.btn-toolbar {
  .clearfix();
  .btn-group {
    float: left;
    margin-right: 10px;
  }
}

// Clear the float
.btn-group {
  .clearfix();
}
// Float them, remove border radius, then re-add to first and last elements
.btn-group .btn {
  position: relative;
  float: left;
  margin-left: -1px;
  .border-radius(0);
  &:first-child {
    margin-left: 0;
       -webkit-border-top-left-radius: 4px;
           -moz-border-radius-topleft: 4px;
               border-top-left-radius: 4px;
    -webkit-border-bottom-left-radius: 4px;
        -moz-border-radius-bottomleft: 4px;
            border-bottom-left-radius: 4px;
  }
  &:last-child {
       -webkit-border-top-right-radius: 4px;
           -moz-border-radius-topright: 4px;
               border-top-right-radius: 4px;
    -webkit-border-bottom-right-radius: 4px;
        -moz-border-radius-bottomright: 4px;
            border-bottom-right-radius: 4px;
  }
}
// On hover/focus/active, bring the proper btn to front
.btn-group .btn:hover,
.btn-group .btn:focus,
.btn-group .btn:active {
  z-index: 2;
}



// CLOSE ICONS
// -----------
.close {
  float: right;
  font-size: 20px;
  font-weight: bold;
  line-height: @baseLineHeight * .75;
  color: @black;
  text-shadow: 0 1px 0 rgba(255,255,255,1);
  .opacity(20);
  &:hover {
    color: @black;
    text-decoration: none;
    .opacity(40);
  }
}


// ERROR STYLES
// ------------

// Base alert styles
.alert-message {
  position: relative;
  padding: 7px 15px;
  margin-bottom: @baseLineHeight;
  color: @grayDark;
  text-shadow: 0 1px 0 rgba(255,255,255,.5);
  .gradientBar(#fceec1, #eedc94); // warning by default
  border-width: 1px;
  border-style: solid;
  .border-radius(4px);
  .box-shadow(inset 0 1px 0 rgba(255,255,255,.25));

  // Adjust close icon
  .close {
    *margin-top: 3px; /* IE7 spacing */
  }

  // Remove extra margin from content
  h5 {
    line-height: @baseLineHeight;
  }
  p {
    margin-bottom: 0;
  }
  div {
    margin-top: 5px;
    margin-bottom: 2px;
    line-height: 28px;
  }
  .btn {
    // Provide actions with buttons
    .box-shadow(0 1px 0 rgba(255,255,255,.25));
  }

  &.error,
  &.success,
  &.info {
    text-shadow: 0 -1px 0 rgba(0,0,0,.25);
  }

  &.block-message {
    padding: 14px;
    background-image: none;
    background-color: lighten(#fceec1, 5%);
    .reset-filter(); // undo gradient for IE9
    border-color: #fceec1;
    .box-shadow(none);
    ul, p {
      margin-right: 30px;
    }
    ul {
      margin-bottom: 0;
    }
    li {
      color: @grayDark;
    }
    .alert-actions {
      margin-top: 5px;
    }
    &.error,
    &.success,
    &.info {
      color: @grayDark;
      text-shadow: 0 1px 0 rgba(255,255,255,.5);
    }
    &.error {
      background-color: lighten(#f56a66, 25%);
      border-color: lighten(#f56a66, 20%);
    }
    &.success {
      background-color: lighten(#62c462, 30%);
      border-color: lighten(#62c462, 25%);
    }
    &.info {
      background-color: lighten(#6bd0ee, 25%);
      border-color: lighten(#6bd0ee, 20%);
    }
  }
}




// WELLS
// -----

.well {
  min-height: 20px;
  padding: 19px;
  margin-bottom: 20px;
  background-color: #f5f5f5;
  border: 1px solid #eee;
  border: 1px solid rgba(0,0,0,.05);
  .border-radius(4px);
  .box-shadow(inset 0 1px 1px rgba(0,0,0,.05));
  blockquote {
    border-color: #ddd;
    border-color: rgba(0,0,0,.15);
  }
}


// PATTERN ANIMATIONS
// ------------------

.fade {
  .transition(opacity .15s linear);
  opacity: 0;
  &.in {
    opacity: 1;
  }
}

.collapse {
  .transition(height .35s ease);
  position:relative;
  overflow:hidden;
  height: 0;
  &.in { height: auto; }
}


// LABELS
// ------

.label {
  padding: 1px 3px 2px;
  font-size: @baseFontSize * .75;
  font-weight: bold;
  color: @white;
  text-transform: uppercase;
  background-color: @grayLight;
  .border-radius(3px);
  &.important { background-color: #c43c35; }
  &.warning   { background-color: @orange; }
  &.success   { background-color: @green; }
  &.notice    { background-color: lighten(@blue, 25%); }
}