waveterm/frontend/app/tab/tab.less

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

.tab {
    position: absolute;
    width: 130px;
    height: calc(100% - 1px);
    padding: 6px 3px 0px;
    box-sizing: border-box;
    font-weight: bold;
    color: var(--secondary-text-color);

    .tab-inner {
        position: relative;
        width: 100%;
        height: 100%;
        white-space: nowrap;
        border-radius: 6px;
        background: rgba(255, 255, 255, 0.05);
        border: 0.5px solid rgba(255, 255, 255, 0.08);
    }

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

    &.active {
        .tab-inner {
            border: 0.5px solid rgba(255, 255, 255, 0.2);
            background: radial-gradient(ellipse 92px 32px at bottom, rgba(118, 255, 53, 0.3) 0%, transparent 100%),
                rgba(255, 255, 255, 0.2);
        }

        .name {
            color: white;
        }
    }

    .name {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate3d(-50%, -50%, 0);
        user-select: none;
        z-index: var(--zindex-tab-name);
        font-size: 11px;
        font-weight: 500;
        text-shadow: 0px 0px 4px rgba(0, 0, 0, 0.25);

        &.focused {
            outline: none;
            border: 1px solid rgba(255, 255, 255, 0.179);
            padding: 2px 6px;
            border-radius: 2px;
        }
    }

    .close {
        visibility: hidden;
        position: absolute;
        top: 50%;
        right: 4px;
        transform: translate3d(0, -50%, 0);
        width: 20px;
        height: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        opacity: 0.5;
        z-index: var(--zindex-tab-name);
        padding: 1px 2px;

        &:hover {
            opacity: 1;
        }
    }

    &:hover .close {
        visibility: visible;
    }
}

@keyframes expandWidthAndFadeIn {
    from {
        width: var(--initial-tab-width);
        opacity: 0;
    }
    to {
        width: var(--final-tab-width);
        opacity: 1;
    }
}

.tab.new-tab {
    animation: expandWidthAndFadeIn 0.1s forwards;
}