.header {
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    padding: 0 @header-padding;
    width: 100%;
    height: @header-hg;
    background-color: @header-bg;
    box-shadow: 0 1px 10px rgba(0, 0, 0, 0.2);
    z-index: @zindex + 10;
    .logo {
        margin-left: -@header-padding;
        width: @aside-wd;
        transition: width .2s @layout-ease;
        a {
            display: block;
            text-align: center;
        }
        img {
            vertical-align: middle;
            max-width: 100%;
            animation: fadeIn 1s;
            &.collapsed {
                display: none;
            }
            &.expanded {
                display: inline;
            }
        }
    }
}

.top-nav-wrap {
    flex: 1;
    display: flex;
    justify-content: space-between;
}

.top-nav {
    >li {
        display: inline-block;
        vertical-align: middle;
    }
    .item {
        display: block;
        color: #fff !important;
        border-radius: 2px;
        text-align: center;
        line-height: 100%;
        padding: 8px 2px;
        min-width: 50px;
        transition: background-color 300ms;
        cursor: pointer;
        outline: none;
        &:hover {
            background-color: rgba(255, 255, 255, 0.2) !important;
        }
        i {
            font-size: 18px;
            line-height: 100%;
        }
    }
}

// Search
.header-search-mixin(@enabled) when(@enabled = true) {
    @header-search-prefix-cls: header-search;
    .@{header-search-prefix-cls} {
        flex: 1;
        margin: 0 @layout-gutter * 3;
        position: relative;
        .ant-input {
            height: @header-search-height;
            background-color: rgba(255, 255, 255, 0.2);
            color: #fff;
            border: none;
            padding-left: @header-search-height !important;
            &::-webkit-input-placeholder {
                color: #fff;
                opacity: 1;
            }
        }
        .ant-input-prefix {
            i {
                transition: color 300ms, transform 400ms;
                font-size: 18px;
                color: #fff;
            }
        }
        &.@{header-search-prefix-cls}__focus {
            .ant-input {
                background-color: #f3f3f3;
                color: @grey-8;
                &::placeholder {
                    color: @grey-8;
                    opacity: 1;
                }
            }
            .ant-input-prefix {
                i {
                    transform: rotate(180deg);
                    color: @grey-8;
                    &:before {
                        content: "\E61B";
                    }
                }
            }
        }
    }
    @media (min-width: @screen-sm) {
        .top-nav .@{header-search-prefix-cls}__btn {
            display: none;
        }
    }
    @media (max-width: @screen-sm) {
        .@{header-search-prefix-cls} {
            align-items: center;
            transition: transform 300ms;
            padding: 0 @header-padding;
            margin: 0;
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 100%;
            background-color: #fff;
            z-index: @zindex+20;
            &__toggled {
                display: flex;
            }
            &:not(&__toggled) {
                transform: translate3d(0, -105%, 0);
            }
        }
    }
}
.header-search-mixin(@header-search-enabled);

// Collapsed
.aside-collapsed {
    .header {
        .logo {
            width: @aside-collapsed-wd;
            img {
                &.collapsed {
                    display: inline;
                }
                &.expanded {
                    display: none;
                }
            }
        }
    }
}

// Desktop
@media (min-width: @screen-sm) {}

// Under pad
@media (max-width: @screen-sm) {
    .header {
        .logo {
            width: @aside-collapsed-wd !important;
            img {
                &.collapsed {
                    display: inline !important;
                }
                &.expanded {
                    display: none !important;
                }
            }
        }
    }
}

// APP ICONS
.app-icons {
    padding: @layout-gutter * 2;
    .ant-col-6 {
        padding: (@layout-gutter * 2) 0;
        border-radius: 4px;
        text-align: center;
        transition: background-color 300ms;
        cursor: pointer;
        &:hover {
            background-color: #ECECEC;
        }
    }
    i {
        border-radius: 50%;
        font-size: 22px;
        padding: 15px;
    }
    small {
        font-size: 14px;
        padding-top: 4px;
        color: #9c9c9c;
        display: block;
    }
}

// Theme Switch
@theme-icon-label-hw: 30px;
.theme-icons {
    display: flex;
    flex-wrap: wrap;
    vertical-align: middle;
    padding-left: 4px;
    label {
        flex: 0 1 auto;
        border-radius: 50%;
        text-align: center;
        width: @theme-icon-label-hw;
        height: @theme-icon-label-hw;
        margin-top: 6px;
        margin-right: 6px;
        cursor: pointer;
        position: relative;
        overflow: hidden;
        .anticon {
            position: absolute;
            top: (@theme-icon-label-hw - 16px) / 2;
            left: (@theme-icon-label-hw - 16px) / 2;
            font-size: 16px;
            color: #fff;
        }
    }

    .areas {
        display: flex;
        height: @theme-icon-label-hw / 2;
        margin-top: 50%;
        span {
            display: inline-block;
            width: 50%;
        }
    }
}