/* 原稿是 SCSS（带 $speed 变量和嵌套），这里展开成普通 CSS。
   所有 transition 的 2s 就是原来的 $speed。 */

html,
body,
.background {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: "Lato", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

html {
  background: #fff;
}

body {
  background: #eee;
  background: linear-gradient(0deg, rgba(0, 0, 200, 0.2), rgba(0, 0, 200, 0));
}

.background {
  background: #eee;
  background: linear-gradient(120deg, rgba(50, 150, 100, 0.2), rgba(0, 0, 100, 0));
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  overflow: auto;
  position: relative;
  background: #eee;
  background: linear-gradient(240deg, rgba(150, 50, 50, 0.3), rgba(0, 0, 200, 0));
}

/* 天气切换按钮 */
nav ul {
  margin: 20px 20px 0 20px;
  padding: 0;
  list-style-type: none;
  display: flex;
  flex-direction: row;
}

nav li a {
  display: block;
  width: 50px;
  text-align: center;
  color: #aaa;
  cursor: pointer;
}

nav li a:hover {
  color: #444;
}

nav li a.active {
  color: #4444ff;
}

/* 卡片 */
#card {
  box-shadow: 9px 7px 40px -6px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  width: 300px;
  padding: 0;
  height: 400px;
  min-height: 300px;
  margin: 20px;
  border-radius: 5px;
  position: relative;
}

#card .details {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 16px 20px;
  color: #888;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  transition: color 2s ease;
}

.thunder #card .details {
  color: #ddd;
}

#card .details .right {
  text-align: right;
}

#card .details #date {
  margin: 4px 0;
}

#card .details #summary {
  font-weight: 600;
  font-size: 22px;
}

#card .details .temp {
  font-size: 60px;
  line-height: 60px;
}

#card .details .temp span {
  font-size: 18px;
  line-height: 30px;
  vertical-align: top;
  margin-left: 5px;
}

/* 天气状态 */
.weather {
  background-color: #dae3fd;
  transition: background-color 2s ease;
}

.thunder .weather {
  background-color: #9fa4ad;
}

.rain .weather {
  background-color: #d8d8d8;
}

.sun .weather {
  background-color: #ccccff;
}

.weather #inner {
  background-color: rgba(255, 255, 255, 1);
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5) 50%, rgba(255, 255, 255, 0) 100%);
}

.weather .cloud {
  transition: fill 2s ease;
}

.weather #cloud1 {
  fill: #efefef;
}

.thunder .weather #cloud1 {
  fill: #9fa4ad;
}

.weather #cloud2 {
  fill: #e6e6e6;
}

.thunder .weather #cloud2 {
  fill: #8b8e98;
}

.weather #cloud3 {
  fill: #d5d5d5;
}

.thunder .weather #cloud3 {
  fill: #7b7988;
}

#outer,
#back {
  position: fixed;
  pointer-events: none;
}