.win {
    position: fixed;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 12px;
    box-shadow: 0 12px 28px rgba(0,0,0,.18);
    overflow: hidden;
}

.win-titlebar {
    height: 44px;
    background: #0d6efd;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px;
    font-weight: 600;
    cursor: move;
    user-select: none;
}

.win-actions .btn-win {
    background: transparent;
    border: 0;
    color: #fff;
    width: 28px;
    height: 28px;
    border-radius: 6px;
}

    .win-actions .btn-win.close:hover {
        background: #dc3545;
    }

.win-content {
    height: calc(100% - 44px);
    overflow: auto;
    padding: 8px;
}

.win-resize {
    position: absolute;
    width: 16px;
    height: 16px;
    right: 2px;
    bottom: 2px;
    cursor: nwse-resize;
    background: linear-gradient(135deg, transparent 50%, rgba(0,0,0,.2) 50%);
}

.win.minimized {
    display: none;
}