.builder-tabs {
    > .tabs {
        position: relative;

        .tab-control {
            position: absolute;
            display: block;

            &.inspector-trigger {
                font-size: 14px;
                padding-left: 5px;
                padding-right: 5px;
                cursor: pointer;

                span {
                    display: block;
                    width: 3px;
                    height: 3px;
                    margin-bottom: 2px;
                    background: #95a5a6;

                    &:last-child {
                        margin-bottom: 0;
                    }
                }

                &:hover, &.inspector-open {
                    span {
                        background: @link-color;
                    }
                }

                &.global  {
                    top: 5px;
                    right: 15px;
                }
            }
        }

        > ul.tabs {
            margin: 0;
            list-style: none;
            font-size: 0;
            white-space: nowrap;
            overflow: hidden;
            position: relative;

            > li {
                .user-select(none);
                display: inline-block;
                font-size: 13px;
                white-space: nowrap;
                position: relative;
                cursor: pointer;

                > div.tab-container {
                    position: relative;
                    color: #bdc3c7!important;

                    > div {
                        .transition(padding .1s);
                        position: relative;
                    }
                }

                &:hover > div {
                    color: #95a5a6!important;
                }

                .tab-control {
                    display: none;

                    &.close-btn {
                        font-size: 15px;
                        top: 7px;
                        right: 18px;
                        line-height: 15px;
                        height: 15px;
                        width: 15px;
                        text-align: center;
                        cursor: pointer;
                        color: #95a5a6;

                        &:hover {
                            color: @link-color!important;
                        }
                    }

                    &.inspector-trigger{
                        right: 34px;
                        top: 10px;
                    }
                }

                &.active {
                    > div.tab-container {
                        color: #95a5a6!important;
                    }

                    .tab-control {
                        display: block;
                    }
                }
            }
        }

        > ul.panels {
            padding: 0;
            list-style: none;

            > li {
                display: none;

                &.active {
                    display: block;
                }
            }
        }
    }

    &.primary {
        > .tabs {
            > ul.tabs {
                padding: 0 20px 0 40px;
                height: 31px;

                &:after {
                    position: absolute;
                    content: '';
                    display: block;
                    height: 2px;
                    left: 0;
                    bottom: 0;
                    width: 100%;
                    background: #bdc3c7;
                    z-index: 106;
                }

                > li {
                    bottom: -2px; 
                    margin-left: -20px;
                    z-index: 105;

                    > div.tab-container {
                        padding: 0 21px 0 21px;
                        height: 27px;

                        > div {
                            padding: 5px 5px 0 5px;
                            border-top: 2px solid #e5e5e5; 

                            > span {
                                position: relative;
                                top: -2px;
                                .transition(top .1s);
                            }
                        }

                        &:before, &:after {
                            content: '';
                            display: block;
                            position: absolute;
                            top: 0;
                            height: 27px;
                            width: 21px;
                            background: transparent url(../images/tab.png) no-repeat;
                        }

                        &:before {
                            left: 0;
                            background-position: 0 -27px;
                        }

                        &:after {
                            right: 0;
                            background-position: -75px -27px;
                        }
                    }

                    &.active {
                        z-index: 107;

                        > div.tab-container {

                            &:before {
                                background-position: 0 0;
                            }

                            &:after {
                                background-position: -75px 0;
                            }

                            > div {
                                padding-right: 30px;
                                border-top: 2px solid #bdc3c7; 

                                > span {
                                    top: 0;
                                }
                            }
                        }

                        &:before {
                            position: absolute;
                            content: '';
                            display: block;
                            height: 3px;
                            left: 0;
                            bottom: 0;
                            width: 100%;
                            background: white;
                        }
                    }

                    &.new-tab {
                        background: transparent url(../images/tab.png) no-repeat;
                        background-position: -24px 0;
                        width: 27px;
                        height: 22px;

                        margin-left: -11px;
                        top: 4px;
                        position: relative;
                        cursor: pointer;

                        &:hover {
                            background-position: -24px -32px;
                        }
                    }
                }
            }
        }
    }

    &.secondary {
        > .tabs {
            ul.tabs {
                margin-left: 12px;
                padding-left: 0;

                > li {
                    border-right: 1px solid #bdc3c7;
                    padding-right: 1px;

                    > div.tab-container {
                        > div {
                            padding: 4px 10px;

                            span {
                                font-size: 14px;
                            }
                        }
                    }

                    .tab-control { 
                        right: 23px;
                        top: 7px;

                        &.close-btn {
                            right: 6px;
                            top: 5px;
                        }
                    }

                    &.new-tab {
                        background: transparent;
                        border: 2px solid #e4e4e4;
                        width: 27px;
                        height: 22px;
                        left: 9px;
                        top: 7px;
                        position: relative;
                        cursor: pointer;
                        .border-radius(4px);

                        &:hover {
                            background-color: #2581b8;
                            border-color: #2581b8;
                        }
                    }

                    &.active {
                        padding-right: 10px;

                        > div.tab-container {
                            > div {
                                color: #555555;
                                padding-right: 30px;
                            }
                        }
                    }
                }
            }
        }
    }
}

html.gecko {
    .builder-tabs.primary > .tabs > ul.tabs > li {
        // Fixes a visual glitch in FireFox, noticed in v. 42 on Mac.
        //
        bottom: -3px; 
        > div.tab-container > div {
            padding-top: 5px;
        }
    }
}