// The common library for user interface.
// This file must not emit any CSS code! It can only contain variable,
// mixin, or silent class declarations.

$ui-font: 'Source Sans Pro', 'Segoe UI', 'Helvetica Neue', sans-serif;
$link-color: #039;

@mixin full-screen {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

@mixin full-screen-fixed {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

@mixin centered {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

@mixin scrolling-y {
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

@mixin scrolling-x {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
}

@mixin center-content {
  display: flex;
  justify-content: center;
  align-items: center;
}

@mixin scene-background($url) {
  background: $url center no-repeat;
  background-size: cover;
}

@mixin main-bg {
  @include scene-background(url(~bemuse/ui/images/bg/a.jpg));
}

@mixin soft-shadow {
  box-shadow: 0 0.1vh 3vh rgba(#000, 0.1);
}

@mixin button {
  font: inherit;
  background: #252423 linear-gradient(to bottom, #454443, #151413);
  border: 1px solid #555453;
  padding: 0.5ex 1.3ex;
  color: #fff;
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(#000, 0.5);
  &:hover {
    border-color: #656463;
  }
  &:focus {
    border-color: #8b8685;
    outline: 0;
  }
  &:active {
    background: #252423 linear-gradient(to top, #353433, #151413);
    border-color: #454443;
  }
}

@mixin input {
  font: inherit;
  background: #252423 linear-gradient(to bottom, #151413, #292827);
  border: 1px solid #555453;
  padding: 0.5ex 1.3ex;
  color: #fff;
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(#000, 0.5);
  &:hover {
    border-color: #656463;
  }
  &:focus {
    border-color: #8b8685;
    outline: 0;
  }
  &:active {
    border-color: #454443;
  }
  &::selection {
    background: #8b8685;
    color: #8e8;
  }
}

@mixin input-button-zindex($nominal) {
  position: relative;
  z-index: $nominal;
  &:hover {
    z-index: 30;
  }
  &:focus {
    z-index: 40;
  }
  &:active {
    z-index: 10;
  }
}
