waveterm/frontend/app/tab/tab.less

// Copyright 2024, Command Line Inc.
// SPDX-License-Identifier: Apache-2.0

.tab {
    cursor: pointer;
    width: 130px;
    height: 100%;
    position: absolute;
    box-sizing: border-box;
    cursor: pointer;
    font-weight: bold;
    color: var(--secondary-text-color);
    white-space: nowrap;
    border-top: 2px solid transparent;
    background-color: rgba(0, 8, 3, 0);

    &.animate {
        transition:
            transform 0.3s ease,
            background-color 0.3s ease-in-out;
    }

    &.active {
        border-top: 2px solid var(--tab-green);
        background-color: var(--tab-green);
    }

    .name {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        -webkit-user-select: none;
        z-index: 3;
    }

    .vertical-line {
        display: inline;
        width: 1px;
        height: 50%;
        position: absolute;
        right: -1px;
        top: 50%;
        z-index: 1;
        transform: translateY(-50%);
        background-color: var(--border-color);
    }

    .close {
        visibility: hidden;
        position: absolute;
        width: 20px;
        height: 20px;
        padding: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        top: 50%;
        z-index: 3;
        transform: translateY(-50%);
        right: 5px;

        &:hover {
            border: 1px solid var(--border-color);
            border-radius: 2px;
        }

        i {
            color: var(--secondary-text-color);
        }
    }

    &:hover .close {
        visibility: visible;
    }

    &.active {
        .vertical-line {
            visibility: hidden;
        }
    }

    &.active {
        .mask {
            position: absolute;
            height: 100%;
            width: 100%;
            top: 0;
            left: 0;
            z-index: 2;
            background-image: linear-gradient(
                to top,
                rgba(0, 0, 0, 0.9) 20%,
                rgba(0, 0, 0, 0.8) 60%,
                rgba(0, 0, 0, 0.7) 100%
            );
            pointer-events: none; /* Prevents the background from capturing mouse events */
        }
    }

    &.isDragging:not(.active) {
        background-color: rgba(0, 8, 3, 1);
    }
}